sysbta: Sync with r29

* Currently not working on my MTK devices. Investigation ongoing.

bluetooth/audio/hal/A2dpBits.h

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+class A2dpBits {
+  const uint8_t* cdata_;
+  uint8_t* data_;
+
+ public:
+  A2dpBits(const std::vector<uint8_t>& vector) : cdata_(vector.data()) {}
+
+  A2dpBits(std::vector<uint8_t>& vector)
+      : cdata_(vector.data()), data_(vector.data()) {}
+
+  struct Range {
+    const int first, len;
+    constexpr Range(int first, int last)
+        : first(first), len(last - first + 1) {}
+    constexpr Range(int index) : first(index), len(1) {}
+  };
+
+  constexpr bool get(int bit) const {
+    return (cdata_[bit >> 3] >> (7 - (bit & 7))) & 1;
+  }
+
+  constexpr unsigned get(const Range& range) const {
+    unsigned v(0);
+    for (int i = 0; i < range.len; i++)
+      v |= get(range.first + i) << ((range.len - 1) - i);
+    return v;
+  }
+
+  constexpr void set(int bit, int value = 1) {
+    uint8_t m = 1 << (7 - (bit & 7));
+    if (value)
+      data_[bit >> 3] |= m;
+    else
+      data_[bit >> 3] &= ~m;
+  }
+
+  constexpr void set(const Range& range, int value) {
+    for (int i = 0; i < range.len; i++)
+      set(range.first + i, (value >> ((range.len - 1) - i)) & 1);
+  }
+
+  constexpr int find_active_bit(const Range& range) const {
+    unsigned v = get(range);
+    int i = 0;
+    for (; i < range.len && ((v >> i) & 1) == 0; i++)
+      ;
+    return i < range.len && (v ^ (1 << i)) == 0
+               ? range.first + (range.len - 1) - i
+               : -1;
+  }
+};
+
+}  // namespace aidl::android::hardware::bluetooth::audio

bluetooth/audio/hal/A2dpOffloadAudioProvider.cpp

@@ -22,6 +22,10 @@
 #include <BluetoothAudioSessionReport.h>
 #include <android-base/logging.h>
 
+#include "A2dpOffloadCodecAac.h"
+#include "A2dpOffloadCodecFactory.h"
+#include "A2dpOffloadCodecSbc.h"
+
 namespace aidl {
 namespace android {
 namespace hardware {
@@ -48,19 +52,44 @@ ndk::ScopedAStatus A2dpOffloadAudioProvider::startSession(
     const std::shared_ptr<IBluetoothAudioPort>& host_if,
     const AudioConfiguration& audio_config,
     const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return) {
-  if (audio_config.getTag() != AudioConfiguration::a2dpConfig) {
-    LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
-                 << audio_config.toString();
-    *_aidl_return = DataMQDesc();
-    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
-  }
-  if (!BluetoothAudioCodecs::IsOffloadCodecConfigurationValid(
-          session_type_, audio_config.get<AudioConfiguration::a2dpConfig>())) {
+  if (audio_config.getTag() == AudioConfiguration::Tag::a2dp) {
+    auto a2dp_config = audio_config.get<AudioConfiguration::Tag::a2dp>();
+    A2dpStatus a2dp_status = A2dpStatus::NOT_SUPPORTED_CODEC_TYPE;
+
+    if (a2dp_config.codecId ==
+        A2dpOffloadCodecSbc::GetInstance()->GetCodecId()) {
+      SbcParameters sbc_parameters;
+      a2dp_status = A2dpOffloadCodecSbc::GetInstance()->ParseConfiguration(
+          a2dp_config.configuration, &sbc_parameters);
+
+    } else if (a2dp_config.codecId ==
+               A2dpOffloadCodecAac::GetInstance()->GetCodecId()) {
+      AacParameters aac_parameters;
+      a2dp_status = A2dpOffloadCodecAac::GetInstance()->ParseConfiguration(
+          a2dp_config.configuration, &aac_parameters);
+    }
+    if (a2dp_status != A2dpStatus::OK) {
+      LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
+                   << audio_config.toString();
+      *_aidl_return = DataMQDesc();
+      return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+    }
+  } else if (audio_config.getTag() == AudioConfiguration::Tag::a2dpConfig) {
+    if (!BluetoothAudioCodecs::IsOffloadCodecConfigurationValid(
+            session_type_,
+            audio_config.get<AudioConfiguration::a2dpConfig>())) {
+      LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
+                   << audio_config.toString();
+      *_aidl_return = DataMQDesc();
+      return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+    }
+  } else {
     LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
                  << audio_config.toString();
     *_aidl_return = DataMQDesc();
     return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
   }
+
   return BluetoothAudioProvider::startSession(
       host_if, audio_config, latency_modes, _aidl_return);
 }
@@ -73,6 +102,36 @@ ndk::ScopedAStatus A2dpOffloadAudioProvider::onSessionReady(
   return ndk::ScopedAStatus::ok();
 }
 
+ndk::ScopedAStatus A2dpOffloadAudioProvider::parseA2dpConfiguration(
+    const CodecId& codec_id, const std::vector<uint8_t>& configuration,
+    CodecParameters* codec_parameters, A2dpStatus* _aidl_return) {
+  auto codec = A2dpOffloadCodecFactory::GetInstance()->GetCodec(codec_id);
+  if (!codec) {
+    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
+              << " - CodecId=" << codec_id.toString() << " is not found";
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+
+  *_aidl_return = codec->ParseConfiguration(configuration, codec_parameters);
+
+  return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus A2dpOffloadAudioProvider::getA2dpConfiguration(
+    const std::vector<A2dpRemoteCapabilities>& remote_a2dp_capabilities,
+    const A2dpConfigurationHint& hint,
+    std::optional<audio::A2dpConfiguration>* _aidl_return) {
+  *_aidl_return = std::nullopt;
+  A2dpConfiguration avdtp_configuration;
+
+  if (A2dpOffloadCodecFactory::GetInstance()->GetConfiguration(
+          remote_a2dp_capabilities, hint, &avdtp_configuration))
+    *_aidl_return =
+        std::make_optional<A2dpConfiguration>(std::move(avdtp_configuration));
+
+  return ndk::ScopedAStatus::ok();
+}
+
 }  // namespace audio
 }  // namespace bluetooth
 }  // namespace hardware

bluetooth/audio/hal/A2dpOffloadAudioProvider.h

@@ -34,7 +34,16 @@ class A2dpOffloadAudioProvider : public BluetoothAudioProvider {
       const std::shared_ptr<IBluetoothAudioPort>& host_if,
       const AudioConfiguration& audio_config,
       const std::vector<LatencyMode>& latency_modes,
-      DataMQDesc* _aidl_return);
+      DataMQDesc* _aidl_return) override;
+
+  ndk::ScopedAStatus parseA2dpConfiguration(
+      const CodecId& codec_id, const std::vector<uint8_t>& configuration,
+      CodecParameters* codec_parameters, A2dpStatus* _aidl_return) override;
+
+  ndk::ScopedAStatus getA2dpConfiguration(
+      const std::vector<A2dpRemoteCapabilities>& remote_a2dp_capabilities,
+      const A2dpConfigurationHint& hint,
+      std::optional<audio::A2dpConfiguration>* _aidl_return) override;
 
  private:
   ndk::ScopedAStatus onSessionReady(DataMQDesc* _aidl_return) override;

bluetooth/audio/hal/A2dpOffloadCodec.h

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/bluetooth/audio/A2dpStatus.h>
+#include <aidl/android/hardware/bluetooth/audio/ChannelMode.h>
+#include <aidl/android/hardware/bluetooth/audio/CodecParameters.h>
+
+#include "BluetoothAudioProviderFactory.h"
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+class A2dpOffloadCodec {
+ protected:
+  A2dpOffloadCodec(const CodecInfo& info) : info(info) {}
+  virtual ~A2dpOffloadCodec() {}
+
+ public:
+  const CodecInfo& info;
+
+  const CodecId& GetCodecId() const { return info.id; }
+
+  virtual A2dpStatus ParseConfiguration(
+      const std::vector<uint8_t>& configuration,
+      CodecParameters* codec_parameters) const = 0;
+
+  virtual bool BuildConfiguration(
+      const std::vector<uint8_t>& remote_capabilities,
+      const std::optional<CodecParameters>& hint,
+      std::vector<uint8_t>* configuration) const = 0;
+};
+
+}  // namespace aidl::android::hardware::bluetooth::audio

bluetooth/audio/hal/A2dpOffloadCodecAac.cpp

@@ -0,0 +1,378 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "A2dpOffloadCodecAac.h"
+
+#include "A2dpBits.h"
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+/**
+ * AAC Local Capabilities
+ */
+
+enum : bool {
+  kEnableObjectTypeMpeg2AacLc = true,
+  kEnableObjectTypeMpeg4AacLc = true,
+};
+
+enum : bool {
+  kEnableSamplingFrequency44100 = true,
+  kEnableSamplingFrequency48000 = true,
+  kEnableSamplingFrequency88200 = false,
+  kEnableSamplingFrequency96000 = false,
+};
+
+enum : bool {
+  kEnableChannels1 = true,
+  kEnableChannels2 = true,
+};
+
+enum : bool {
+  kEnableVbrSupported = true,
+};
+
+enum : int {
+  kBitdepth = 24,
+};
+
+/**
+ * AAC Signaling format [A2DP - 4.5]
+ */
+
+// clang-format off
+
+constexpr A2dpBits::Range kObjectType        (  0,  6 );
+constexpr A2dpBits::Range kDrcEnable         (  7     );
+constexpr A2dpBits::Range kSamplingFrequency (  8, 19 );
+constexpr A2dpBits::Range kChannels          ( 20, 23 );
+constexpr A2dpBits::Range kVbrSupported      ( 24     );
+constexpr A2dpBits::Range kBitrate           ( 25, 47 );
+constexpr size_t kCapabilitiesSize = 48/8;
+
+// clang-format on
+
+enum {
+  kObjectTypeMpeg2AacLc = kObjectType.first,
+  kObjectTypeMpeg4AacLc,
+  kObjectTypeMpeg4AacLtp,
+  kObjectTypeMpeg4AacScalable,
+  kObjectTypeMpeg4AacHeV1,
+  kObjectTypeMpeg4AacHeV2,
+  kObjectTypeMpeg4AacEldV2
+};
+
+enum {
+  kSamplingFrequency8000 = kSamplingFrequency.first,
+  kSamplingFrequency11025,
+  kSamplingFrequency12000,
+  kSamplingFrequency16000,
+  kSamplingFrequency22050,
+  kSamplingFrequency24000,
+  kSamplingFrequency32000,
+  kSamplingFrequency44100,
+  kSamplingFrequency48000,
+  kSamplingFrequency64000,
+  kSamplingFrequency88200,
+  kSamplingFrequency96000
+};
+
+enum { kChannels1 = kChannels.first, kChannels2, kChannels51, kChannels71 };
+
+/**
+ * AAC Conversion functions
+ */
+
+static AacParameters::ObjectType GetObjectTypeEnum(int object_type) {
+  switch (object_type) {
+    case kObjectTypeMpeg2AacLc:
+      return AacParameters::ObjectType::MPEG2_AAC_LC;
+    case kObjectTypeMpeg4AacLc:
+    default:
+      return AacParameters::ObjectType::MPEG4_AAC_LC;
+  }
+}
+
+static int GetSamplingFrequencyBit(int32_t sampling_frequency) {
+  switch (sampling_frequency) {
+    case 8000:
+      return kSamplingFrequency8000;
+    case 11025:
+      return kSamplingFrequency11025;
+    case 12000:
+      return kSamplingFrequency12000;
+    case 16000:
+      return kSamplingFrequency16000;
+    case 22050:
+      return kSamplingFrequency22050;
+    case 24000:
+      return kSamplingFrequency24000;
+    case 32000:
+      return kSamplingFrequency32000;
+    case 44100:
+      return kSamplingFrequency44100;
+    case 48000:
+      return kSamplingFrequency48000;
+    case 64000:
+      return kSamplingFrequency64000;
+    case 88200:
+      return kSamplingFrequency88200;
+    case 96000:
+      return kSamplingFrequency96000;
+    default:
+      return -1;
+  }
+}
+
+static int32_t GetSamplingFrequencyValue(int sampling_frequency) {
+  switch (sampling_frequency) {
+    case kSamplingFrequency8000:
+      return 8000;
+    case kSamplingFrequency11025:
+      return 11025;
+    case kSamplingFrequency12000:
+      return 12000;
+    case kSamplingFrequency16000:
+      return 16000;
+    case kSamplingFrequency22050:
+      return 22050;
+    case kSamplingFrequency24000:
+      return 24000;
+    case kSamplingFrequency32000:
+      return 32000;
+    case kSamplingFrequency44100:
+      return 44100;
+    case kSamplingFrequency48000:
+      return 48000;
+    case kSamplingFrequency64000:
+      return 64000;
+    case kSamplingFrequency88200:
+      return 88200;
+    case kSamplingFrequency96000:
+      return 96000;
+    default:
+      return 0;
+  }
+}
+
+static int GetChannelsBit(ChannelMode channel_mode) {
+  switch (channel_mode) {
+    case ChannelMode::MONO:
+      return kChannels1;
+    case ChannelMode::STEREO:
+      return kChannels2;
+    default:
+      return -1;
+  }
+}
+
+static ChannelMode GetChannelModeEnum(int channel_mode) {
+  switch (channel_mode) {
+    case kChannels1:
+      return ChannelMode::MONO;
+    case kChannels2:
+      return ChannelMode::STEREO;
+    default:
+      return ChannelMode::UNKNOWN;
+  }
+}
+
+/**
+ * AAC Class implementation
+ */
+
+const A2dpOffloadCodecAac* A2dpOffloadCodecAac::GetInstance() {
+  static A2dpOffloadCodecAac instance;
+  return &instance;
+}
+
+A2dpOffloadCodecAac::A2dpOffloadCodecAac()
+    : A2dpOffloadCodec(info_),
+      info_({.id = CodecId(CodecId::A2dp::AAC), .name = "AAC"}) {
+  info_.transport.set<CodecInfo::Transport::Tag::a2dp>();
+  auto& a2dp_info = info_.transport.get<CodecInfo::Transport::Tag::a2dp>();
+
+  /* --- Setup Capabilities --- */
+
+  a2dp_info.capabilities.resize(kCapabilitiesSize);
+  std::fill(begin(a2dp_info.capabilities), end(a2dp_info.capabilities), 0);
+
+  auto capabilities = A2dpBits(a2dp_info.capabilities);
+
+  capabilities.set(kObjectTypeMpeg2AacLc, kEnableObjectTypeMpeg2AacLc);
+  capabilities.set(kObjectTypeMpeg4AacLc, kEnableObjectTypeMpeg4AacLc);
+
+  capabilities.set(kSamplingFrequency44100, kEnableSamplingFrequency44100);
+  capabilities.set(kSamplingFrequency48000, kEnableSamplingFrequency48000);
+  capabilities.set(kSamplingFrequency88200, kEnableSamplingFrequency88200);
+  capabilities.set(kSamplingFrequency96000, kEnableSamplingFrequency96000);
+
+  capabilities.set(kChannels1, kEnableChannels1);
+  capabilities.set(kChannels2, kEnableChannels2);
+
+  capabilities.set(kVbrSupported, kEnableVbrSupported);
+
+  /* --- Setup Sampling Frequencies --- */
+
+  auto& sampling_frequency = a2dp_info.samplingFrequencyHz;
+
+  for (auto v : {8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000,
+                 64000, 88200, 96000})
+    if (capabilities.get(GetSamplingFrequencyBit(int32_t(v))))
+      sampling_frequency.push_back(v);
+
+  /* --- Setup Channel Modes --- */
+
+  auto& channel_modes = a2dp_info.channelMode;
+
+  for (auto v : {ChannelMode::MONO, ChannelMode::STEREO})
+    if (capabilities.get(GetChannelsBit(v))) channel_modes.push_back(v);
+
+  /* --- Setup Bitdepth --- */
+
+  a2dp_info.bitdepth.push_back(kBitdepth);
+}
+
+A2dpStatus A2dpOffloadCodecAac::ParseConfiguration(
+    const std::vector<uint8_t>& configuration,
+    CodecParameters* codec_parameters, AacParameters* aac_parameters) const {
+  auto& a2dp_info = info.transport.get<CodecInfo::Transport::Tag::a2dp>();
+
+  if (configuration.size() != a2dp_info.capabilities.size())
+    return A2dpStatus::BAD_LENGTH;
+
+  auto config = A2dpBits(configuration);
+  auto lcaps = A2dpBits(a2dp_info.capabilities);
+
+  /* --- Check Object Type --- */
+
+  int object_type = config.find_active_bit(kObjectType);
+  if (object_type < 0) return A2dpStatus::INVALID_OBJECT_TYPE;
+  if (!lcaps.get(object_type)) return A2dpStatus::NOT_SUPPORTED_OBJECT_TYPE;
+
+  /* --- Check Sampling Frequency --- */
+
+  int sampling_frequency = config.find_active_bit(kSamplingFrequency);
+  if (sampling_frequency < 0) return A2dpStatus::INVALID_SAMPLING_FREQUENCY;
+  if (!lcaps.get(sampling_frequency))
+    return A2dpStatus::NOT_SUPPORTED_SAMPLING_FREQUENCY;
+
+  /* --- Check Channels --- */
+
+  int channels = config.find_active_bit(kChannels);
+  if (channels < 0) return A2dpStatus::INVALID_CHANNELS;
+  if (!lcaps.get(channels)) return A2dpStatus::NOT_SUPPORTED_CHANNELS;
+
+  /* --- Check Bitrate --- */
+
+  bool vbr = config.get(kVbrSupported);
+  if (vbr && !lcaps.get(kVbrSupported)) return A2dpStatus::NOT_SUPPORTED_VBR;
+
+  int bitrate = config.get(kBitrate);
+  if (vbr && lcaps.get(kBitrate) && bitrate > lcaps.get(kBitrate))
+    return A2dpStatus::NOT_SUPPORTED_BIT_RATE;
+
+  /* --- Return --- */
+
+  codec_parameters->channelMode = GetChannelModeEnum(channels);
+  codec_parameters->samplingFrequencyHz =
+      GetSamplingFrequencyValue(sampling_frequency);
+  codec_parameters->bitdepth = kBitdepth;
+
+  codec_parameters->minBitrate = vbr ? 0 : bitrate;
+  codec_parameters->maxBitrate = bitrate;
+
+  if (aac_parameters)
+    aac_parameters->object_type = GetObjectTypeEnum(object_type);
+
+  return A2dpStatus::OK;
+}
+
+bool A2dpOffloadCodecAac::BuildConfiguration(
+    const std::vector<uint8_t>& remote_capabilities,
+    const std::optional<CodecParameters>& hint,
+    std::vector<uint8_t>* configuration) const {
+  auto& a2dp_info = info_.transport.get<CodecInfo::Transport::Tag::a2dp>();
+
+  if (remote_capabilities.size() != a2dp_info.capabilities.size()) return false;
+
+  auto lcaps = A2dpBits(a2dp_info.capabilities);
+  auto rcaps = A2dpBits(remote_capabilities);
+
+  configuration->resize(a2dp_info.capabilities.size());
+  std::fill(begin(*configuration), end(*configuration), 0);
+  auto config = A2dpBits(*configuration);
+
+  /* --- Select Object Type --- */
+
+  if (lcaps.get(kObjectTypeMpeg2AacLc) && rcaps.get(kObjectTypeMpeg2AacLc))
+    config.set(kObjectTypeMpeg2AacLc);
+  else if (lcaps.get(kObjectTypeMpeg4AacLc) && rcaps.get(kObjectTypeMpeg4AacLc))
+    config.set(kObjectTypeMpeg4AacLc);
+  else
+    return false;
+
+  /* --- Select Sampling Frequency --- */
+
+  auto sf_hint = hint ? GetSamplingFrequencyBit(hint->samplingFrequencyHz) : -1;
+
+  if (sf_hint >= 0 && lcaps.get(sf_hint) && rcaps.get(sf_hint))
+    config.set(sf_hint);
+  else if (lcaps.get(kSamplingFrequency96000) &&
+           rcaps.get(kSamplingFrequency96000))
+    config.set(kSamplingFrequency96000);
+  else if (lcaps.get(kSamplingFrequency88200) &&
+           rcaps.get(kSamplingFrequency88200))
+    config.set(kSamplingFrequency88200);
+  else if (lcaps.get(kSamplingFrequency48000) &&
+           rcaps.get(kSamplingFrequency48000))
+    config.set(kSamplingFrequency48000);
+  else if (lcaps.get(kSamplingFrequency44100) &&
+           rcaps.get(kSamplingFrequency44100))
+    config.set(kSamplingFrequency44100);
+  else
+    return false;
+
+  /* --- Select Channels --- */
+
+  auto ch_hint = hint ? GetChannelsBit(hint->channelMode) : -1;
+
+  if (ch_hint >= 0 && lcaps.get(ch_hint) && rcaps.get(ch_hint))
+    config.set(ch_hint);
+  else if (lcaps.get(kChannels2) && rcaps.get(kChannels2))
+    config.set(kChannels2);
+  else if (lcaps.get(kChannels1) && rcaps.get(kChannels1))
+    config.set(kChannels1);
+  else
+    return false;
+
+  /* --- Select Bitrate --- */
+
+  if (!hint || hint->minBitrate == 0)
+    config.set(kVbrSupported,
+               lcaps.get(kVbrSupported) && rcaps.get(kVbrSupported));
+
+  int32_t bitrate = lcaps.get(kBitrate);
+  if (hint && hint->maxBitrate > 0 && bitrate)
+    bitrate = std::min(hint->maxBitrate, bitrate);
+  else if (hint && hint->maxBitrate > 0)
+    bitrate = hint->maxBitrate;
+  config.set(kBitrate, bitrate);
+
+  return true;
+}
+
+}  // namespace aidl::android::hardware::bluetooth::audio

bluetooth/audio/hal/A2dpOffloadCodecAac.h

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "A2dpOffloadCodec.h"
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+struct AacParameters : public CodecParameters {
+  enum class ObjectType { MPEG2_AAC_LC, MPEG4_AAC_LC };
+
+  ObjectType object_type;
+};
+
+class A2dpOffloadCodecAac : public A2dpOffloadCodec {
+  CodecInfo info_;
+
+  A2dpOffloadCodecAac();
+
+  A2dpStatus ParseConfiguration(const std::vector<uint8_t>& configuration,
+                                CodecParameters* codec_parameters,
+                                AacParameters* aac_parameters) const;
+
+ public:
+  static const A2dpOffloadCodecAac* GetInstance();
+
+  A2dpStatus ParseConfiguration(
+      const std::vector<uint8_t>& configuration,
+      CodecParameters* codec_parameters) const override {
+    return ParseConfiguration(configuration, codec_parameters, nullptr);
+  }
+
+  A2dpStatus ParseConfiguration(const std::vector<uint8_t>& configuration,
+                                AacParameters* aac_parameters) const {
+    return ParseConfiguration(configuration, aac_parameters, aac_parameters);
+  }
+
+  bool BuildConfiguration(const std::vector<uint8_t>& remote_capabilities,
+                          const std::optional<CodecParameters>& hint,
+                          std::vector<uint8_t>* configuration) const override;
+};
+
+}  // namespace aidl::android::hardware::bluetooth::audio

bluetooth/audio/hal/A2dpOffloadCodecFactory.cpp

@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "A2dpOffloadCodecFactory.h"
+
+#include <algorithm>
+#include <cassert>
+
+#include "A2dpOffloadCodecAac.h"
+#include "A2dpOffloadCodecSbc.h"
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+/**
+ * Local Capabilities Configuration
+ */
+
+enum : bool {
+  kEnableAac = true,
+  kEnableSbc = true,
+};
+
+/**
+ * Class implementation
+ */
+
+const A2dpOffloadCodecFactory* A2dpOffloadCodecFactory::GetInstance() {
+  static A2dpOffloadCodecFactory instance;
+  return &instance;
+}
+
+A2dpOffloadCodecFactory::A2dpOffloadCodecFactory()
+    : name("Offload"), codecs(ranked_codecs_) {
+  ranked_codecs_.reserve(kEnableAac + kEnableSbc);
+
+  if (kEnableAac) ranked_codecs_.push_back(A2dpOffloadCodecAac::GetInstance());
+  if (kEnableSbc) ranked_codecs_.push_back(A2dpOffloadCodecSbc::GetInstance());
+}
+
+const A2dpOffloadCodec* A2dpOffloadCodecFactory::GetCodec(CodecId id) const {
+  auto codec = std::find_if(begin(ranked_codecs_), end(ranked_codecs_),
+                            [&](auto c) { return id == c->info.id; });
+
+  return codec != end(ranked_codecs_) ? *codec : nullptr;
+}
+
+bool A2dpOffloadCodecFactory::GetConfiguration(
+    const std::vector<A2dpRemoteCapabilities>& remote_capabilities,
+    const A2dpConfigurationHint& hint, A2dpConfiguration* configuration) const {
+  decltype(ranked_codecs_) codecs;
+
+  codecs.reserve(ranked_codecs_.size());
+
+  auto hinted_codec =
+      std::find_if(begin(ranked_codecs_), end(ranked_codecs_),
+                   [&](auto c) { return hint.codecId == c->info.id; });
+
+  if (hinted_codec != end(ranked_codecs_)) codecs.push_back(*hinted_codec);
+
+  std::copy_if(begin(ranked_codecs_), end(ranked_codecs_),
+               std::back_inserter(codecs),
+               [&](auto c) { return c != *hinted_codec; });
+
+  for (auto codec : codecs) {
+    auto rc =
+        std::find_if(begin(remote_capabilities), end(remote_capabilities),
+                     [&](auto& rc__) { return codec->info.id == rc__.id; });
+
+    if ((rc == end(remote_capabilities)) ||
+        !codec->BuildConfiguration(rc->capabilities, hint.codecParameters,
+                                   &configuration->configuration))
+      continue;
+
+    configuration->id = codec->info.id;
+    A2dpStatus status = codec->ParseConfiguration(configuration->configuration,
+                                                  &configuration->parameters);
+    assert(status == A2dpStatus::OK);
+
+    configuration->remoteSeid = rc->seid;
+
+    return true;
+  }
+
+  return false;
+}
+
+}  // namespace aidl::android::hardware::bluetooth::audio

bluetooth/audio/hal/A2dpOffloadCodecFactory.h

@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "A2dpOffloadCodec.h"
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+class A2dpOffloadCodecFactory {
+  std::vector<const A2dpOffloadCodec*> ranked_codecs_;
+
+  A2dpOffloadCodecFactory();
+
+ public:
+  const std::string name;
+  const std::vector<const A2dpOffloadCodec*>& codecs;
+
+  static const A2dpOffloadCodecFactory* GetInstance();
+
+  const A2dpOffloadCodec* GetCodec(CodecId id) const;
+
+  bool GetConfiguration(const std::vector<A2dpRemoteCapabilities>&,
+                        const A2dpConfigurationHint& hint,
+                        A2dpConfiguration* configuration) const;
+};
+
+}  // namespace aidl::android::hardware::bluetooth::audio

bluetooth/audio/hal/A2dpOffloadCodecSbc.cpp

@@ -0,0 +1,510 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "A2dpOffloadCodecSbc.h"
+
+#include <algorithm>
+
+#include "A2dpBits.h"
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+/**
+ * SBC Local Capabilities
+ */
+
+enum : bool {
+  kEnableSamplingFrequency44100 = true,
+  kEnableSamplingFrequency48000 = true,
+};
+
+enum : bool {
+  kEnableChannelModeMono = true,
+  kEnableChannelModeDualChannel = true,
+  kEnableChannelModeStereo = true,
+  kEnableChannelModeJointStereo = true,
+};
+
+enum : bool {
+  kEnableBlockLength4 = true,
+  kEnableBlockLength8 = true,
+  kEnableBlockLength12 = true,
+  kEnableBlockLength16 = true,
+};
+
+enum : bool {
+  kEnableSubbands4 = true,
+  kEnableSubbands8 = true,
+};
+
+enum : bool {
+  kEnableAllocationMethodSnr = true,
+  kEnableAllocationMethodLoudness = true,
+};
+
+enum : uint8_t {
+  kDefaultMinimumBitpool = 2,
+  kDefaultMaximumBitpool = 250,
+};
+
+enum : int {
+  kBitdepth = 16,
+};
+
+/**
+ * SBC Signaling format [A2DP - 4.3]
+ */
+
+// clang-format off
+
+constexpr A2dpBits::Range kSamplingFrequency (  0,  3 );
+constexpr A2dpBits::Range kChannelMode       (  4,  7 );
+constexpr A2dpBits::Range kBlockLength       (  8, 11 );
+constexpr A2dpBits::Range kSubbands          ( 12, 13 );
+constexpr A2dpBits::Range kAllocationMethod  ( 14, 15 );
+constexpr A2dpBits::Range kMinimumBitpool    ( 16, 23 );
+constexpr A2dpBits::Range kMaximumBitpool    ( 24, 31 );
+constexpr size_t kCapabilitiesSize = 32/8;
+
+// clang-format on
+
+enum {
+  kSamplingFrequency16000 = kSamplingFrequency.first,
+  kSamplingFrequency32000,
+  kSamplingFrequency44100,
+  kSamplingFrequency48000
+};
+
+enum {
+  kChannelModeMono = kChannelMode.first,
+  kChannelModeDualChannel,
+  kChannelModeStereo,
+  kChannelModeJointStereo
+};
+
+enum {
+  kBlockLength4 = kBlockLength.first,
+  kBlockLength8,
+  kBlockLength12,
+  kBlockLength16
+};
+
+enum { kSubbands8 = kSubbands.first, kSubbands4 };
+
+enum {
+  kAllocationMethodSnr = kAllocationMethod.first,
+  kAllocationMethodLoudness
+};
+
+/**
+ * SBC Conversion functions
+ */
+
+static int GetSamplingFrequencyBit(int32_t sampling_frequency) {
+  switch (sampling_frequency) {
+    case 16000:
+      return kSamplingFrequency16000;
+    case 32000:
+      return kSamplingFrequency32000;
+    case 44100:
+      return kSamplingFrequency44100;
+    case 48000:
+      return kSamplingFrequency48000;
+    default:
+      return -1;
+  }
+}
+
+static int32_t GetSamplingFrequencyValue(int sampling_frequency) {
+  switch (sampling_frequency) {
+    case kSamplingFrequency16000:
+      return 16000;
+    case kSamplingFrequency32000:
+      return 32000;
+    case kSamplingFrequency44100:
+      return 44100;
+    case kSamplingFrequency48000:
+      return 48000;
+    default:
+      return 0;
+  }
+}
+
+static int GetChannelModeBit(ChannelMode channel_mode) {
+  switch (channel_mode) {
+    case ChannelMode::STEREO:
+      return kChannelModeJointStereo | kChannelModeStereo;
+    case ChannelMode::DUALMONO:
+      return kChannelModeDualChannel;
+    case ChannelMode::MONO:
+      return kChannelModeMono;
+    default:
+      return -1;
+  }
+}
+
+static ChannelMode GetChannelModeEnum(int channel_mode) {
+  switch (channel_mode) {
+    case kChannelModeMono:
+      return ChannelMode::MONO;
+    case kChannelModeDualChannel:
+      return ChannelMode::DUALMONO;
+    case kChannelModeStereo:
+    case kChannelModeJointStereo:
+      return ChannelMode::STEREO;
+    default:
+      return ChannelMode::UNKNOWN;
+  }
+}
+
+static int32_t GetBlockLengthValue(int block_length) {
+  switch (block_length) {
+    case kBlockLength4:
+      return 4;
+    case kBlockLength8:
+      return 8;
+    case kBlockLength12:
+      return 12;
+    case kBlockLength16:
+      return 16;
+    default:
+      return 0;
+  }
+}
+
+static int32_t GetSubbandsValue(int subbands) {
+  switch (subbands) {
+    case kSubbands4:
+      return 4;
+    case kSubbands8:
+      return 8;
+    default:
+      return 0;
+  }
+}
+
+static SbcParameters::AllocationMethod GetAllocationMethodEnum(
+    int allocation_method) {
+  switch (allocation_method) {
+    case kAllocationMethodSnr:
+      return SbcParameters::AllocationMethod::SNR;
+    case kAllocationMethodLoudness:
+    default:
+      return SbcParameters::AllocationMethod::LOUDNESS;
+  }
+}
+
+static int32_t GetSamplingFrequencyValue(const A2dpBits& configuration) {
+  return GetSamplingFrequencyValue(
+      configuration.find_active_bit(kSamplingFrequency));
+}
+
+static int32_t GetBlockLengthValue(const A2dpBits& configuration) {
+  return GetBlockLengthValue(configuration.find_active_bit(kBlockLength));
+}
+
+static int32_t GetSubbandsValue(const A2dpBits& configuration) {
+  return GetSubbandsValue(configuration.find_active_bit(kSubbands));
+}
+
+static int GetFrameSize(const A2dpBits& configuration, int bitpool) {
+  const int kSbcHeaderSize = 4;
+  int subbands = GetSubbandsValue(configuration);
+  int blocks = GetBlockLengthValue(configuration);
+
+  unsigned bits =
+      ((4 * subbands) << !configuration.get(kChannelModeMono)) +
+      ((blocks * bitpool) << configuration.get(kChannelModeDualChannel)) +
+      ((configuration.get(kChannelModeJointStereo) ? subbands : 0));
+
+  return kSbcHeaderSize + ((bits + 7) >> 3);
+}
+
+static int GetBitrate(const A2dpBits& configuration, int bitpool) {
+  int sampling_frequency = GetSamplingFrequencyValue(configuration);
+  int subbands = GetSubbandsValue(configuration);
+  int blocks = GetBlockLengthValue(configuration);
+  int bits = 8 * GetFrameSize(configuration, bitpool);
+
+  return (bits * sampling_frequency) / (blocks * subbands);
+}
+
+static uint8_t GetBitpool(const A2dpBits& configuration, int bitrate) {
+  int bitpool = 0;
+
+  for (int i = 128; i; i >>= 1)
+    if (bitrate > GetBitrate(configuration, bitpool + i)) {
+      bitpool += i;
+    }
+
+  return std::clamp(bitpool, 2, 250);
+}
+
+/**
+ * SBC Class implementation
+ */
+
+const A2dpOffloadCodecSbc* A2dpOffloadCodecSbc::GetInstance() {
+  static A2dpOffloadCodecSbc instance;
+  return &instance;
+}
+
+A2dpOffloadCodecSbc::A2dpOffloadCodecSbc()
+    : A2dpOffloadCodec(info_),
+      info_({.id = CodecId(CodecId::A2dp::SBC), .name = "SBC"}) {
+  info_.transport.set<CodecInfo::Transport::Tag::a2dp>();
+  auto& a2dp_info = info_.transport.get<CodecInfo::Transport::Tag::a2dp>();
+
+  /* --- Setup Capabilities --- */
+
+  a2dp_info.capabilities.resize(kCapabilitiesSize);
+  std::fill(begin(a2dp_info.capabilities), end(a2dp_info.capabilities), 0);
+
+  auto capabilities = A2dpBits(a2dp_info.capabilities);
+
+  capabilities.set(kSamplingFrequency44100, kEnableSamplingFrequency44100);
+  capabilities.set(kSamplingFrequency48000, kEnableSamplingFrequency48000);
+
+  capabilities.set(kChannelModeMono, kEnableChannelModeMono);
+  capabilities.set(kChannelModeDualChannel, kEnableChannelModeDualChannel);
+  capabilities.set(kChannelModeStereo, kEnableChannelModeStereo);
+  capabilities.set(kChannelModeJointStereo, kEnableChannelModeJointStereo);
+
+  capabilities.set(kBlockLength4, kEnableBlockLength4);
+  capabilities.set(kBlockLength8, kEnableBlockLength8);
+  capabilities.set(kBlockLength12, kEnableBlockLength12);
+  capabilities.set(kBlockLength16, kEnableBlockLength16);
+
+  capabilities.set(kSubbands4, kEnableSubbands4);
+  capabilities.set(kSubbands8, kEnableSubbands8);
+
+  capabilities.set(kSubbands4, kEnableSubbands4);
+  capabilities.set(kSubbands8, kEnableSubbands8);
+
+  capabilities.set(kAllocationMethodSnr, kEnableAllocationMethodSnr);
+  capabilities.set(kAllocationMethodLoudness, kEnableAllocationMethodLoudness);
+
+  capabilities.set(kMinimumBitpool, kDefaultMinimumBitpool);
+  capabilities.set(kMaximumBitpool, kDefaultMaximumBitpool);
+
+  /* --- Setup Sampling Frequencies --- */
+
+  auto& sampling_frequency = a2dp_info.samplingFrequencyHz;
+
+  for (auto v : {16000, 32000, 44100, 48000})
+    if (capabilities.get(GetSamplingFrequencyBit(int32_t(v))))
+      sampling_frequency.push_back(v);
+
+  /* --- Setup Channel Modes --- */
+
+  auto& channel_modes = a2dp_info.channelMode;
+
+  for (auto v : {ChannelMode::MONO, ChannelMode::DUALMONO, ChannelMode::STEREO})
+    if (capabilities.get(GetChannelModeBit(v))) channel_modes.push_back(v);
+
+  /* --- Setup Bitdepth --- */
+
+  a2dp_info.bitdepth.push_back(kBitdepth);
+}
+
+A2dpStatus A2dpOffloadCodecSbc::ParseConfiguration(
+    const std::vector<uint8_t>& configuration,
+    CodecParameters* codec_parameters, SbcParameters* sbc_parameters) const {
+  auto& a2dp_info = info.transport.get<CodecInfo::Transport::Tag::a2dp>();
+
+  if (configuration.size() != a2dp_info.capabilities.size())
+    return A2dpStatus::BAD_LENGTH;
+
+  auto config = A2dpBits(configuration);
+  auto lcaps = A2dpBits(a2dp_info.capabilities);
+
+  /* --- Check Sampling Frequency --- */
+
+  int sampling_frequency = config.find_active_bit(kSamplingFrequency);
+  if (sampling_frequency < 0) return A2dpStatus::INVALID_SAMPLING_FREQUENCY;
+  if (!lcaps.get(sampling_frequency))
+    return A2dpStatus::NOT_SUPPORTED_SAMPLING_FREQUENCY;
+
+  /* --- Check Channel Mode --- */
+
+  int channel_mode = config.find_active_bit(kChannelMode);
+  if (channel_mode < 0) return A2dpStatus::INVALID_CHANNEL_MODE;
+  if (!lcaps.get(channel_mode)) return A2dpStatus::NOT_SUPPORTED_CHANNEL_MODE;
+
+  /* --- Check Block Length --- */
+
+  int block_length = config.find_active_bit(kBlockLength);
+  if (block_length < 0) return A2dpStatus::INVALID_BLOCK_LENGTH;
+
+  /* --- Check Subbands --- */
+
+  int subbands = config.find_active_bit(kSubbands);
+  if (subbands < 0) return A2dpStatus::INVALID_SUBBANDS;
+  if (!lcaps.get(subbands)) return A2dpStatus::NOT_SUPPORTED_SUBBANDS;
+
+  /* --- Check Allocation Method --- */
+
+  int allocation_method = config.find_active_bit(kAllocationMethod);
+  if (allocation_method < 0) return A2dpStatus::INVALID_ALLOCATION_METHOD;
+  if (!lcaps.get(allocation_method))
+    return A2dpStatus::NOT_SUPPORTED_ALLOCATION_METHOD;
+
+  /* --- Check Bitpool --- */
+
+  uint8_t min_bitpool = config.get(kMinimumBitpool);
+  if (min_bitpool < 2 || min_bitpool > 250)
+    return A2dpStatus::INVALID_MINIMUM_BITPOOL_VALUE;
+  if (min_bitpool < lcaps.get(kMinimumBitpool))
+    return A2dpStatus::NOT_SUPPORTED_MINIMUM_BITPOOL_VALUE;
+
+  uint8_t max_bitpool = config.get(kMaximumBitpool);
+  if (max_bitpool < 2 || max_bitpool > 250)
+    return A2dpStatus::INVALID_MAXIMUM_BITPOOL_VALUE;
+  if (max_bitpool > lcaps.get(kMaximumBitpool))
+    return A2dpStatus::NOT_SUPPORTED_MAXIMUM_BITPOOL_VALUE;
+
+  /* --- Return --- */
+
+  codec_parameters->channelMode = GetChannelModeEnum(channel_mode);
+  codec_parameters->samplingFrequencyHz =
+      GetSamplingFrequencyValue(sampling_frequency);
+  codec_parameters->bitdepth = kBitdepth;
+
+  codec_parameters->minBitrate = GetBitrate(config, min_bitpool);
+  codec_parameters->maxBitrate = GetBitrate(config, max_bitpool);
+
+  if (sbc_parameters) {
+    sbc_parameters->block_length = GetBlockLengthValue(block_length);
+    sbc_parameters->subbands = GetSubbandsValue(subbands);
+    sbc_parameters->allocation_method =
+        GetAllocationMethodEnum(allocation_method);
+    sbc_parameters->min_bitpool = min_bitpool;
+    sbc_parameters->max_bitpool = max_bitpool;
+  }
+
+  return A2dpStatus::OK;
+}
+
+bool A2dpOffloadCodecSbc::BuildConfiguration(
+    const std::vector<uint8_t>& remote_capabilities,
+    const std::optional<CodecParameters>& hint,
+    std::vector<uint8_t>* configuration) const {
+  auto& a2dp_info = info.transport.get<CodecInfo::Transport::Tag::a2dp>();
+
+  if (remote_capabilities.size() != a2dp_info.capabilities.size()) return false;
+
+  auto lcaps = A2dpBits(a2dp_info.capabilities);
+  auto rcaps = A2dpBits(remote_capabilities);
+
+  configuration->resize(a2dp_info.capabilities.size());
+  std::fill(begin(*configuration), end(*configuration), 0);
+  auto config = A2dpBits(*configuration);
+
+  /* --- Select Sampling Frequency --- */
+
+  auto sf_hint = hint ? GetSamplingFrequencyBit(hint->samplingFrequencyHz) : -1;
+
+  if (sf_hint >= 0 && lcaps.get(sf_hint) && rcaps.get(sf_hint))
+    config.set(sf_hint);
+  else if (lcaps.get(kSamplingFrequency44100) &&
+           rcaps.get(kSamplingFrequency44100))
+    config.set(kSamplingFrequency44100);
+  else if (lcaps.get(kSamplingFrequency48000) &&
+           rcaps.get(kSamplingFrequency48000))
+    config.set(kSamplingFrequency48000);
+  else
+    return false;
+
+  /* --- Select Channel Mode --- */
+
+  auto cm_hint = hint ? GetChannelModeBit(hint->channelMode) : -1;
+
+  if (cm_hint >= 0 && lcaps.get(cm_hint) && rcaps.get(cm_hint))
+    config.set(cm_hint);
+  else if (lcaps.get(kChannelModeJointStereo) &&
+           rcaps.get(kChannelModeJointStereo))
+    config.set(kChannelModeJointStereo);
+  else if (lcaps.get(kChannelModeStereo) && rcaps.get(kChannelModeStereo))
+    config.set(kChannelModeStereo);
+  else if (lcaps.get(kChannelModeDualChannel) &&
+           rcaps.get(kChannelModeDualChannel))
+    config.set(kChannelModeDualChannel);
+  else if (lcaps.get(kChannelModeMono) && rcaps.get(kChannelModeMono))
+    config.set(kChannelModeMono);
+  else
+    return false;
+
+  /* --- Select Block Length --- */
+
+  if (lcaps.get(kBlockLength16) && rcaps.get(kBlockLength16))
+    config.set(kBlockLength16);
+  else if (lcaps.get(kBlockLength12) && rcaps.get(kBlockLength12))
+    config.set(kBlockLength12);
+  else if (lcaps.get(kBlockLength8) && rcaps.get(kBlockLength8))
+    config.set(kBlockLength8);
+  else if (lcaps.get(kBlockLength4) && rcaps.get(kBlockLength4))
+    config.set(kBlockLength4);
+  else
+    return false;
+
+  /* --- Select Subbands --- */
+
+  if (lcaps.get(kSubbands8) && rcaps.get(kSubbands8))
+    config.set(kSubbands8);
+  else if (lcaps.get(kSubbands4) && rcaps.get(kSubbands4))
+    config.set(kSubbands4);
+  else
+    return false;
+
+  /* --- Select Allocation method --- */
+
+  if (lcaps.get(kAllocationMethodLoudness) &&
+      rcaps.get(kAllocationMethodLoudness))
+    config.set(kAllocationMethodLoudness);
+  else if (lcaps.get(kAllocationMethodSnr) && rcaps.get(kAllocationMethodSnr))
+    config.set(kAllocationMethodSnr);
+  else
+    return false;
+
+  /* --- Select Bitpool --- */
+
+  uint8_t min_bitpool = rcaps.get(kMinimumBitpool);
+  uint8_t max_bitpool = rcaps.get(kMaximumBitpool);
+
+  if (min_bitpool < 2 || min_bitpool > 250 || max_bitpool < 2 ||
+      max_bitpool > 250 || min_bitpool > max_bitpool) {
+    min_bitpool = 2;
+    max_bitpool = 250;
+  }
+
+  min_bitpool = std::max(min_bitpool, uint8_t(lcaps.get(kMinimumBitpool)));
+  max_bitpool = std::max(max_bitpool, uint8_t(lcaps.get(kMaximumBitpool)));
+
+  if (hint) {
+    min_bitpool =
+        std::max(min_bitpool, GetBitpool(*configuration, hint->minBitrate));
+    if (hint->maxBitrate && hint->maxBitrate >= hint->minBitrate)
+      max_bitpool =
+          std::min(max_bitpool, GetBitpool(*configuration, hint->maxBitrate));
+  }
+
+  config.set(kMinimumBitpool, min_bitpool);
+  config.set(kMaximumBitpool, max_bitpool);
+
+  return true;
+}
+
+}  // namespace aidl::android::hardware::bluetooth::audio

bluetooth/audio/hal/A2dpOffloadCodecSbc.h

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "A2dpOffloadCodec.h"
+
+namespace aidl::android::hardware::bluetooth::audio {
+
+struct SbcParameters : public CodecParameters {
+  enum class AllocationMethod { SNR, LOUDNESS };
+
+  AllocationMethod allocation_method;
+  int block_length;
+  int subbands;
+  int min_bitpool;
+  int max_bitpool;
+};
+
+class A2dpOffloadCodecSbc : public A2dpOffloadCodec {
+  CodecInfo info_;
+
+  A2dpOffloadCodecSbc();
+
+  A2dpStatus ParseConfiguration(const std::vector<uint8_t>& configuration,
+                                CodecParameters* codec_parameters,
+                                SbcParameters* sbc_parameters) const;
+
+ public:
+  static const A2dpOffloadCodecSbc* GetInstance();
+
+  A2dpStatus ParseConfiguration(
+      const std::vector<uint8_t>& configuration,
+      CodecParameters* codec_parameters) const override {
+    return ParseConfiguration(configuration, codec_parameters, nullptr);
+  }
+
+  A2dpStatus ParseConfiguration(const std::vector<uint8_t>& configuration,
+                                SbcParameters* sbc_parameters) const {
+    return ParseConfiguration(configuration, sbc_parameters, sbc_parameters);
+  }
+
+  bool BuildConfiguration(const std::vector<uint8_t>& remote_capabilities,
+                          const std::optional<CodecParameters>& hint,
+                          std::vector<uint8_t>* configuration) const override;
+};
+
+}  // namespace aidl::android::hardware::bluetooth::audio

bluetooth/audio/hal/Android.bp

@@ -7,8 +7,13 @@ cc_binary {
         "BluetoothAudioProvider.cpp",
         "BluetoothAudioProviderFactory.cpp",
         "A2dpOffloadAudioProvider.cpp",
+        "A2dpOffloadCodecAac.cpp",
+        "A2dpOffloadCodecFactory.cpp",
+        "A2dpOffloadCodecSbc.cpp",
         "A2dpSoftwareAudioProvider.cpp",
         "HearingAidAudioProvider.cpp",
+        "HfpOffloadAudioProvider.cpp",
+        "HfpSoftwareAudioProvider.cpp",
         "LeAudioOffloadAudioProvider.cpp",
         "LeAudioSoftwareAudioProvider.cpp",
         "service_system.cpp",
@@ -16,6 +21,9 @@ cc_binary {
     header_libs: [
         "libhardware_headers",
     ],
+    defaults: [
+        "latest_android_hardware_bluetooth_audio_ndk_shared",
+    ],
     shared_libs: [
         "libbase",
         "libbinder",
@@ -25,7 +33,6 @@ cc_binary {
         "libhidlbase",
         "liblog",
         "libutils",
-        "android.hardware.bluetooth.audio-V3-ndk",
         "libbluetooth_audio_session_aidl_system",
     ],
     required: [

bluetooth/audio/hal/BluetoothAudioProvider.cpp

@@ -21,15 +21,39 @@
 #include <BluetoothAudioSessionReport.h>
 #include <android-base/logging.h>
 
+#include "A2dpOffloadCodecFactory.h"
+
 namespace aidl {
 namespace android {
 namespace hardware {
 namespace bluetooth {
 namespace audio {
 
+struct BluetoothAudioProviderContext {
+  SessionType session_type;
+};
+
+static void binderUnlinkedCallbackAidl(void* cookie) {
+  LOG(INFO) << __func__;
+  BluetoothAudioProviderContext* ctx =
+      static_cast<BluetoothAudioProviderContext*>(cookie);
+  delete ctx;
+}
+
+static void binderDiedCallbackAidl(void* cookie) {
+  LOG(INFO) << __func__;
+  BluetoothAudioProviderContext* ctx =
+      static_cast<BluetoothAudioProviderContext*>(cookie);
+  CHECK_NE(ctx, nullptr);
+
+  BluetoothAudioSessionReport::OnSessionEnded(ctx->session_type);
+}
+
 BluetoothAudioProvider::BluetoothAudioProvider() {
   death_recipient_ = ::ndk::ScopedAIBinder_DeathRecipient(
       AIBinder_DeathRecipient_new(binderDiedCallbackAidl));
+  AIBinder_DeathRecipient_setOnUnlinked(death_recipient_.get(),
+                                        binderUnlinkedCallbackAidl);
 }
 
 ndk::ScopedAStatus BluetoothAudioProvider::startSession(
@@ -39,17 +63,21 @@ ndk::ScopedAStatus BluetoothAudioProvider::startSession(
     DataMQDesc* _aidl_return) {
   if (host_if == nullptr) {
     *_aidl_return = DataMQDesc();
+    LOG(ERROR) << __func__ << " - SessionType=" << toString(session_type_)
+               << " Illegal argument";
     return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
   }
 
   latency_modes_ = latencyModes;
   audio_config_ = std::make_unique<AudioConfiguration>(audio_config);
   stack_iface_ = host_if;
-  is_binder_died = false;
+  BluetoothAudioProviderContext* cookie =
+      new BluetoothAudioProviderContext{session_type_};
 
   AIBinder_linkToDeath(stack_iface_->asBinder().get(), death_recipient_.get(),
-                       this);
+                       cookie);
 
+  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_);
   onSessionReady(_aidl_return);
   return ndk::ScopedAStatus::ok();
 }
@@ -60,10 +88,8 @@ ndk::ScopedAStatus BluetoothAudioProvider::endSession() {
   if (stack_iface_ != nullptr) {
     BluetoothAudioSessionReport::OnSessionEnded(session_type_);
 
-    if (!is_binder_died) {
-      AIBinder_unlinkToDeath(stack_iface_->asBinder().get(),
-                             death_recipient_.get(), this);
-    }
+    AIBinder_unlinkToDeath(stack_iface_->asBinder().get(),
+                           death_recipient_.get(), this);
   } else {
     LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
               << " has NO session";
@@ -77,10 +103,9 @@ ndk::ScopedAStatus BluetoothAudioProvider::endSession() {
 
 ndk::ScopedAStatus BluetoothAudioProvider::streamStarted(
     BluetoothAudioStatus status) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
-            << ", status=" << toString(status);
-
   if (stack_iface_ != nullptr) {
+    LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
+              << ", status=" << toString(status);
     BluetoothAudioSessionReport::ReportControlStatus(session_type_, true,
                                                      status);
   } else {
@@ -108,8 +133,6 @@ ndk::ScopedAStatus BluetoothAudioProvider::streamSuspended(
 
 ndk::ScopedAStatus BluetoothAudioProvider::updateAudioConfiguration(
     const AudioConfiguration& audio_config) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_);
-
   if (stack_iface_ == nullptr || audio_config_ == nullptr) {
     LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
               << " has NO session";
@@ -125,13 +148,13 @@ ndk::ScopedAStatus BluetoothAudioProvider::updateAudioConfiguration(
   audio_config_ = std::make_unique<AudioConfiguration>(audio_config);
   BluetoothAudioSessionReport::ReportAudioConfigChanged(session_type_,
                                                         *audio_config_);
+  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
+            << " | audio_config=" << audio_config.toString();
   return ndk::ScopedAStatus::ok();
 }
 
 ndk::ScopedAStatus BluetoothAudioProvider::setLowLatencyModeAllowed(
     bool allowed) {
-  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_);
-
   if (stack_iface_ == nullptr) {
     LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
               << " has NO session";
@@ -143,19 +166,143 @@ ndk::ScopedAStatus BluetoothAudioProvider::setLowLatencyModeAllowed(
   return ndk::ScopedAStatus::ok();
 }
 
-void BluetoothAudioProvider::binderDiedCallbackAidl(void* ptr) {
-  LOG(ERROR) << __func__ << " - BluetoothAudio Service died";
-  auto provider = static_cast<BluetoothAudioProvider*>(ptr);
-  if (provider == nullptr) {
-    LOG(ERROR) << __func__ << ": Null AudioProvider HAL died";
-    return;
-  }
-  provider->is_binder_died = true;
-  provider->endSession();
+ndk::ScopedAStatus BluetoothAudioProvider::parseA2dpConfiguration(
+    [[maybe_unused]] const CodecId& codec_id,
+    [[maybe_unused]] const std::vector<uint8_t>& configuration,
+    [[maybe_unused]] CodecParameters* codec_parameters,
+    [[maybe_unused]] A2dpStatus* _aidl_return) {
+  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
+            << " is illegal";
+  return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+}
+
+ndk::ScopedAStatus BluetoothAudioProvider::getA2dpConfiguration(
+    [[maybe_unused]] const std::vector<A2dpRemoteCapabilities>&
+        remote_a2dp_capabilities,
+    [[maybe_unused]] const A2dpConfigurationHint& hint,
+    [[maybe_unused]] std::optional<audio::A2dpConfiguration>* _aidl_return) {
+  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
+            << " is illegal";
+
+  return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+}
+
+ndk::ScopedAStatus BluetoothAudioProvider::setCodecPriority(
+    const ::aidl::android::hardware::bluetooth::audio::CodecId& in_codecId,
+    int32_t in_priority) {
+  /* TODO: Implement */
+  (void)in_codecId;
+  (void)in_priority;
+  return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+};
+
+ndk::ScopedAStatus BluetoothAudioProvider::getLeAudioAseConfiguration(
+    const std::optional<std::vector<std::optional<
+        ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+            LeAudioDeviceCapabilities>>>& in_remoteSinkAudioCapabilities,
+    const std::optional<std::vector<std::optional<
+        ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+            LeAudioDeviceCapabilities>>>& in_remoteSourceAudioCapabilities,
+    const std::vector<
+        ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+            LeAudioConfigurationRequirement>& in_requirements,
+    std::vector<::aidl::android::hardware::bluetooth::audio::
+                    IBluetoothAudioProvider::LeAudioAseConfigurationSetting>*
+        _aidl_return) {
+  /* TODO: Implement */
+  (void)in_remoteSinkAudioCapabilities;
+  (void)in_remoteSourceAudioCapabilities;
+  (void)in_requirements;
+  (void)_aidl_return;
+  return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+};
+
+ndk::ScopedAStatus BluetoothAudioProvider::getLeAudioAseQosConfiguration(
+    const ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+        LeAudioAseQosConfigurationRequirement& in_qosRequirement,
+    ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+        LeAudioAseQosConfigurationPair* _aidl_return) {
+  /* TODO: Implement */
+  (void)in_qosRequirement;
+  (void)_aidl_return;
+  return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+};
+
+ndk::ScopedAStatus BluetoothAudioProvider::getLeAudioAseDatapathConfiguration(
+    const ::aidl::android::hardware::bluetooth::audio::AudioContext& in_context,
+    const std::vector<::aidl::android::hardware::bluetooth::audio::
+                          LeAudioConfiguration::StreamMap>& in_streamMap,
+    ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+        LeAudioDataPathConfigurationPair* _aidl_return) {
+  /* TODO: Implement */
+  (void)in_context;
+  (void)in_streamMap;
+  (void)_aidl_return;
+  return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+}
+
+ndk::ScopedAStatus BluetoothAudioProvider::onSinkAseMetadataChanged(
+    ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+        AseState in_state,
+    int32_t cigId, int32_t cisId,
+    const std::optional<std::vector<std::optional<
+        ::aidl::android::hardware::bluetooth::audio::MetadataLtv>>>&
+        in_metadata) {
+  /* TODO: Implement */
+  (void)in_state;
+  (void)cigId;
+  (void)cisId;
+  (void)in_metadata;
+  return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+};
+
+ndk::ScopedAStatus BluetoothAudioProvider::onSourceAseMetadataChanged(
+    ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+        AseState in_state,
+    int32_t cigId, int32_t cisId,
+    const std::optional<std::vector<std::optional<
+        ::aidl::android::hardware::bluetooth::audio::MetadataLtv>>>&
+        in_metadata) {
+  /* TODO: Implement */
+  (void)in_state;
+  (void)cigId;
+  (void)cisId;
+  (void)in_metadata;
+  return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+};
+
+ndk::ScopedAStatus BluetoothAudioProvider::getLeAudioBroadcastConfiguration(
+    const std::optional<std::vector<std::optional<
+        ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+            LeAudioDeviceCapabilities>>>& in_remoteSinkAudioCapabilities,
+    const ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+        LeAudioBroadcastConfigurationRequirement& in_requirement,
+    ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+        LeAudioBroadcastConfigurationSetting* _aidl_return) {
+  /* TODO: Implement */
+  (void)in_remoteSinkAudioCapabilities;
+  (void)in_requirement;
+  (void)_aidl_return;
+  return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+};
+
+ndk::ScopedAStatus
+BluetoothAudioProvider::getLeAudioBroadcastDatapathConfiguration(
+    const ::aidl::android::hardware::bluetooth::audio::AudioContext& in_context,
+    const std::vector<::aidl::android::hardware::bluetooth::audio::
+                          LeAudioBroadcastConfiguration::BroadcastStreamMap>&
+        in_streamMap,
+    ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+        LeAudioDataPathConfiguration* _aidl_return) {
+  /* TODO: Implement */
+  (void)in_context;
+  (void)in_streamMap;
+  (void)_aidl_return;
+  return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
 }
 
 }  // namespace audio
 }  // namespace bluetooth
 }  // namespace hardware
 }  // namespace android
-}  // namespace aidl
+}  // namespace aidl

bluetooth/audio/hal/BluetoothAudioProvider.h

@@ -41,20 +41,86 @@ class BluetoothAudioProvider : public BnBluetoothAudioProvider {
   ndk::ScopedAStatus startSession(
       const std::shared_ptr<IBluetoothAudioPort>& host_if,
       const AudioConfiguration& audio_config,
-      const std::vector<LatencyMode>& latency_modes,
-      DataMQDesc* _aidl_return);
+      const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return);
   ndk::ScopedAStatus endSession();
   ndk::ScopedAStatus streamStarted(BluetoothAudioStatus status);
   ndk::ScopedAStatus streamSuspended(BluetoothAudioStatus status);
   ndk::ScopedAStatus updateAudioConfiguration(
       const AudioConfiguration& audio_config);
   ndk::ScopedAStatus setLowLatencyModeAllowed(bool allowed);
+  ndk::ScopedAStatus setCodecPriority(
+      const ::aidl::android::hardware::bluetooth::audio::CodecId& in_codecId,
+      int32_t in_priority) override;
+  ndk::ScopedAStatus getLeAudioAseConfiguration(
+      const std::optional<std::vector<std::optional<
+          ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+              LeAudioDeviceCapabilities>>>& in_remoteSinkAudioCapabilities,
+      const std::optional<std::vector<std::optional<
+          ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+              LeAudioDeviceCapabilities>>>& in_remoteSourceAudioCapabilities,
+      const std::vector<
+          ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+              LeAudioConfigurationRequirement>& in_requirements,
+      std::vector<::aidl::android::hardware::bluetooth::audio::
+                      IBluetoothAudioProvider::LeAudioAseConfigurationSetting>*
+          _aidl_return) override;
+  ndk::ScopedAStatus getLeAudioAseQosConfiguration(
+      const ::aidl::android::hardware::bluetooth::audio::
+          IBluetoothAudioProvider::LeAudioAseQosConfigurationRequirement&
+              in_qosRequirement,
+      ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+          LeAudioAseQosConfigurationPair* _aidl_return) override;
+  ndk::ScopedAStatus getLeAudioAseDatapathConfiguration(
+      const ::aidl::android::hardware::bluetooth::audio::AudioContext&
+          in_context,
+      const std::vector<::aidl::android::hardware::bluetooth::audio::
+                            LeAudioConfiguration::StreamMap>& in_streamMap,
+      ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+          LeAudioDataPathConfigurationPair* _aidl_return) override;
+  ndk::ScopedAStatus onSinkAseMetadataChanged(
+      ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+          AseState in_state,
+      int32_t cigId, int32_t cisId,
+      const std::optional<std::vector<std::optional<
+          ::aidl::android::hardware::bluetooth::audio::MetadataLtv>>>&
+          in_metadata) override;
+  ndk::ScopedAStatus onSourceAseMetadataChanged(
+      ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+          AseState in_state,
+      int32_t cigId, int32_t cisId,
+      const std::optional<std::vector<std::optional<
+          ::aidl::android::hardware::bluetooth::audio::MetadataLtv>>>&
+          in_metadata) override;
+  ndk::ScopedAStatus getLeAudioBroadcastConfiguration(
+      const std::optional<std::vector<std::optional<
+          ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+              LeAudioDeviceCapabilities>>>& in_remoteSinkAudioCapabilities,
+      const ::aidl::android::hardware::bluetooth::audio::
+          IBluetoothAudioProvider::LeAudioBroadcastConfigurationRequirement&
+              in_requirement,
+      ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+          LeAudioBroadcastConfigurationSetting* _aidl_return) override;
+  ndk::ScopedAStatus getLeAudioBroadcastDatapathConfiguration(
+      const ::aidl::android::hardware::bluetooth::audio::AudioContext&
+          in_context,
+      const std::vector<::aidl::android::hardware::bluetooth::audio::
+                            LeAudioBroadcastConfiguration::BroadcastStreamMap>&
+          in_streamMap,
+      ::aidl::android::hardware::bluetooth::audio::IBluetoothAudioProvider::
+          LeAudioDataPathConfiguration* _aidl_return) override;
+
+  ndk::ScopedAStatus parseA2dpConfiguration(
+      const CodecId& codec_id, const std::vector<uint8_t>& configuration,
+      CodecParameters* codec_parameters, A2dpStatus* _aidl_return);
+  ndk::ScopedAStatus getA2dpConfiguration(
+      const std::vector<A2dpRemoteCapabilities>& remote_a2dp_capabilities,
+      const A2dpConfigurationHint& hint,
+      std::optional<audio::A2dpConfiguration>* _aidl_return);
 
   virtual bool isValid(const SessionType& sessionType) = 0;
 
  protected:
   virtual ndk::ScopedAStatus onSessionReady(DataMQDesc* _aidl_return) = 0;
-  static void binderDiedCallbackAidl(void* cookie_ptr);
 
   ::ndk::ScopedAIBinder_DeathRecipient death_recipient_;
 
@@ -62,9 +128,7 @@ class BluetoothAudioProvider : public BnBluetoothAudioProvider {
   std::unique_ptr<AudioConfiguration> audio_config_ = nullptr;
   SessionType session_type_;
   std::vector<LatencyMode> latency_modes_;
-  bool is_binder_died = false;
 };
-
 }  // namespace audio
 }  // namespace bluetooth
 }  // namespace hardware

bluetooth/audio/hal/BluetoothAudioProviderFactory.cpp

@@ -22,9 +22,12 @@
 #include <android-base/logging.h>
 
 #include "A2dpOffloadAudioProvider.h"
+#include "A2dpOffloadCodecFactory.h"
 #include "A2dpSoftwareAudioProvider.h"
 #include "BluetoothAudioProvider.h"
 #include "HearingAidAudioProvider.h"
+#include "HfpOffloadAudioProvider.h"
+#include "HfpSoftwareAudioProvider.h"
 #include "LeAudioOffloadAudioProvider.h"
 #include "LeAudioSoftwareAudioProvider.h"
 
@@ -34,6 +37,9 @@ namespace hardware {
 namespace bluetooth {
 namespace audio {
 
+static const std::string kLeAudioOffloadProviderName =
+    "LE_AUDIO_OFFLOAD_HARDWARE_OFFLOAD_PROVIDER";
+
 BluetoothAudioProviderFactory::BluetoothAudioProviderFactory() {}
 
 ndk::ScopedAStatus BluetoothAudioProviderFactory::openProvider(
@@ -78,6 +84,15 @@ ndk::ScopedAStatus BluetoothAudioProviderFactory::openProvider(
     case SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH:
       provider = ndk::SharedRefBase::make<A2dpOffloadDecodingAudioProvider>();
       break;
+    case SessionType::HFP_SOFTWARE_ENCODING_DATAPATH:
+      provider = ndk::SharedRefBase::make<HfpSoftwareOutputAudioProvider>();
+      break;
+    case SessionType::HFP_SOFTWARE_DECODING_DATAPATH:
+      provider = ndk::SharedRefBase::make<HfpSoftwareInputAudioProvider>();
+      break;
+    case SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH:
+      provider = ndk::SharedRefBase::make<HfpOffloadAudioProvider>();
+      break;
     default:
       provider = nullptr;
       break;
@@ -135,8 +150,43 @@ ndk::ScopedAStatus BluetoothAudioProviderFactory::getProviderCapabilities(
   return ndk::ScopedAStatus::ok();
 }
 
+ndk::ScopedAStatus BluetoothAudioProviderFactory::getProviderInfo(
+    SessionType session_type, std::optional<ProviderInfo>* _aidl_return) {
+  *_aidl_return = std::nullopt;
+
+  LOG(INFO) << __func__ << " - SessionType=" << toString(session_type);
+
+  if (session_type == SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
+      session_type == SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
+    auto& provider_info = _aidl_return->emplace();
+
+    provider_info.name = A2dpOffloadCodecFactory::GetInstance()->name;
+    for (auto codec : A2dpOffloadCodecFactory::GetInstance()->codecs)
+      provider_info.codecInfos.push_back(codec->info);
+  }
+
+  if (session_type ==
+          SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
+      session_type ==
+          SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH ||
+      session_type ==
+          SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {
+    std::vector<CodecInfo> db_codec_info =
+        BluetoothAudioCodecs::GetLeAudioOffloadCodecInfo(session_type);
+    if (!db_codec_info.empty()) {
+      auto& provider_info = _aidl_return->emplace();
+      provider_info.name = kLeAudioOffloadProviderName;
+      provider_info.codecInfos = db_codec_info;
+      *_aidl_return = provider_info;
+      return ndk::ScopedAStatus::ok();
+    }
+  }
+
+  return ndk::ScopedAStatus::ok();
+}
+
 }  // namespace audio
 }  // namespace bluetooth
 }  // namespace hardware
 }  // namespace android
-}  // namespace aidl
+}  // namespace aidl

bluetooth/audio/hal/BluetoothAudioProviderFactory.h

@@ -35,6 +35,10 @@ class BluetoothAudioProviderFactory : public BnBluetoothAudioProviderFactory {
   ndk::ScopedAStatus getProviderCapabilities(
       const SessionType session_type,
       std::vector<AudioCapabilities>* _aidl_return) override;
+
+  ndk::ScopedAStatus getProviderInfo(
+      SessionType in_sessionType,
+      std::optional<ProviderInfo>* _aidl_return) override;
 };
 
 }  // namespace audio

bluetooth/audio/hal/HfpOffloadAudioProvider.cpp

@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "BTAudioProviderHfpHW"
+
+#include "HfpOffloadAudioProvider.h"
+
+#include <BluetoothAudioCodecs.h>
+#include <BluetoothAudioSessionReport.h>
+#include <android-base/logging.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace audio {
+
+HfpOffloadAudioProvider::HfpOffloadAudioProvider() {
+  session_type_ = SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH;
+}
+
+bool HfpOffloadAudioProvider::isValid(const SessionType& session_type) {
+  return (session_type == session_type_);
+}
+
+ndk::ScopedAStatus HfpOffloadAudioProvider::startSession(
+    const std::shared_ptr<IBluetoothAudioPort>& host_if,
+    const AudioConfiguration& audio_config,
+    const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return) {
+  if (audio_config.getTag() != AudioConfiguration::hfpConfig) {
+    LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
+                 << audio_config.toString();
+    *_aidl_return = DataMQDesc();
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+  return BluetoothAudioProvider::startSession(host_if, audio_config,
+                                              latency_modes, _aidl_return);
+}
+
+ndk::ScopedAStatus HfpOffloadAudioProvider::onSessionReady(
+    DataMQDesc* _aidl_return) {
+  *_aidl_return = DataMQDesc();
+  BluetoothAudioSessionReport::OnSessionStarted(
+      session_type_, stack_iface_, nullptr, *audio_config_, latency_modes_);
+  return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace audio
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl

bluetooth/audio/hal/HfpOffloadAudioProvider.h

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "BluetoothAudioProvider.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace audio {
+
+class HfpOffloadAudioProvider : public BluetoothAudioProvider {
+ public:
+  HfpOffloadAudioProvider();
+
+  bool isValid(const SessionType& sessionType) override;
+
+  ndk::ScopedAStatus startSession(
+      const std::shared_ptr<IBluetoothAudioPort>& host_if,
+      const AudioConfiguration& audio_config,
+      const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return);
+
+ private:
+  ndk::ScopedAStatus onSessionReady(DataMQDesc* _aidl_return) override;
+};
+
+}  // namespace audio
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl

bluetooth/audio/hal/HfpSoftwareAudioProvider.cpp

@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "BTAudioProviderHfpSW"
+
+#include "HfpSoftwareAudioProvider.h"
+
+#include <BluetoothAudioCodecs.h>
+#include <BluetoothAudioSessionReport.h>
+#include <android-base/logging.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace audio {
+
+static constexpr uint32_t kBufferCount = 2;  // two frame buffer
+
+HfpSoftwareOutputAudioProvider::HfpSoftwareOutputAudioProvider()
+    : HfpSoftwareAudioProvider() {
+  session_type_ = SessionType::HFP_SOFTWARE_ENCODING_DATAPATH;
+}
+
+HfpSoftwareInputAudioProvider::HfpSoftwareInputAudioProvider()
+    : HfpSoftwareAudioProvider() {
+  session_type_ = SessionType::HFP_SOFTWARE_DECODING_DATAPATH;
+}
+
+HfpSoftwareAudioProvider::HfpSoftwareAudioProvider()
+    : BluetoothAudioProvider(), data_mq_(nullptr) {
+}
+
+bool HfpSoftwareAudioProvider::isValid(const SessionType& sessionType) {
+  return (sessionType == session_type_);
+}
+
+ndk::ScopedAStatus HfpSoftwareAudioProvider::startSession(
+    const std::shared_ptr<IBluetoothAudioPort>& host_if,
+    const AudioConfiguration& audio_config,
+    const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return) {
+  if (audio_config.getTag() != AudioConfiguration::pcmConfig) {
+    LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
+                 << audio_config.toString();
+    *_aidl_return = DataMQDesc();
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+  const PcmConfiguration& pcm_config =
+      audio_config.get<AudioConfiguration::pcmConfig>();
+  if (!BluetoothAudioCodecs::IsSoftwarePcmConfigurationValid(pcm_config)) {
+    LOG(WARNING) << __func__ << " - Unsupported PCM Configuration="
+                 << pcm_config.toString();
+    *_aidl_return = DataMQDesc();
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+
+  bool isValidConfig = true;
+
+  if (pcm_config.bitsPerSample != 16) {
+    isValidConfig = false;
+  }
+
+  if (pcm_config.sampleRateHz != 8000 && pcm_config.sampleRateHz != 16000 &&
+      pcm_config.sampleRateHz != 32000) {
+    isValidConfig = false;
+  }
+
+  if (pcm_config.channelMode != ChannelMode::MONO) {
+    isValidConfig = false;
+  }
+
+  if (pcm_config.dataIntervalUs != 7500) {
+    isValidConfig = false;
+  }
+
+  int bytes_per_sample = pcm_config.bitsPerSample / 8;
+
+  uint32_t data_mq_size = kBufferCount * bytes_per_sample *
+                          (pcm_config.sampleRateHz / 1000) *
+                          pcm_config.dataIntervalUs / 1000;
+  if (!isValidConfig) {
+    LOG(ERROR) << __func__ << "Unexpected audio buffer size: " << data_mq_size
+               << ", SampleRateHz: " << pcm_config.sampleRateHz
+               << ", ChannelMode: " << toString(pcm_config.channelMode)
+               << ", BitsPerSample: "
+               << static_cast<int>(pcm_config.bitsPerSample)
+               << ", BytesPerSample: " << bytes_per_sample
+               << ", DataIntervalUs: " << pcm_config.dataIntervalUs
+               << ", SessionType: " << toString(session_type_);
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+
+  LOG(INFO) << __func__ << " - size of audio buffer " << data_mq_size
+            << " byte(s)";
+
+  std::unique_ptr<DataMQ> temp_data_mq(
+      new DataMQ(data_mq_size, /* EventFlag */ true));
+  if (temp_data_mq == nullptr || !temp_data_mq->isValid()) {
+    ALOGE_IF(!temp_data_mq, "failed to allocate data MQ");
+    ALOGE_IF(temp_data_mq && !temp_data_mq->isValid(), "data MQ is invalid");
+    *_aidl_return = DataMQDesc();
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+  data_mq_ = std::move(temp_data_mq);
+
+  return BluetoothAudioProvider::startSession(host_if, audio_config,
+                                              latency_modes, _aidl_return);
+}
+
+ndk::ScopedAStatus HfpSoftwareAudioProvider::onSessionReady(
+    DataMQDesc* _aidl_return) {
+  if (data_mq_ == nullptr || !data_mq_->isValid()) {
+    *_aidl_return = DataMQDesc();
+    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+  }
+  *_aidl_return = data_mq_->dupeDesc();
+  auto desc = data_mq_->dupeDesc();
+  BluetoothAudioSessionReport::OnSessionStarted(
+      session_type_, stack_iface_, &desc, *audio_config_, latency_modes_);
+  return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace audio
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl

bluetooth/audio/hal/HfpSoftwareAudioProvider.h

@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "BluetoothAudioProvider.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace audio {
+
+class HfpSoftwareAudioProvider : public BluetoothAudioProvider {
+ public:
+  HfpSoftwareAudioProvider();
+
+  bool isValid(const SessionType& sessionType) override;
+
+  ndk::ScopedAStatus startSession(
+      const std::shared_ptr<IBluetoothAudioPort>& host_if,
+      const AudioConfiguration& audio_config,
+      const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return);
+
+ private:
+  // audio data queue for software encoding
+  std::unique_ptr<DataMQ> data_mq_;
+
+  ndk::ScopedAStatus onSessionReady(DataMQDesc* _aidl_return) override;
+};
+
+class HfpSoftwareOutputAudioProvider : public HfpSoftwareAudioProvider {
+ public:
+  HfpSoftwareOutputAudioProvider();
+};
+
+class HfpSoftwareInputAudioProvider : public HfpSoftwareAudioProvider {
+ public:
+  HfpSoftwareInputAudioProvider();
+};
+
+}  // namespace audio
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl

bluetooth/audio/hal/LeAudioOffloadAudioProvider.cpp

@@ -28,6 +28,73 @@ namespace hardware {
 namespace bluetooth {
 namespace audio {
 
+constexpr uint8_t kLeAudioDirectionSink = 0x01;
+constexpr uint8_t kLeAudioDirectionSource = 0x02;
+
+const std::map<CodecSpecificConfigurationLtv::SamplingFrequency, uint32_t>
+    freq_to_support_bitmask_map = {
+        {CodecSpecificConfigurationLtv::SamplingFrequency::HZ8000,
+         CodecSpecificCapabilitiesLtv::SupportedSamplingFrequencies::HZ8000},
+        {CodecSpecificConfigurationLtv::SamplingFrequency::HZ11025,
+         CodecSpecificCapabilitiesLtv::SupportedSamplingFrequencies::HZ11025},
+        {CodecSpecificConfigurationLtv::SamplingFrequency::HZ16000,
+         CodecSpecificCapabilitiesLtv::SupportedSamplingFrequencies::HZ16000},
+        {CodecSpecificConfigurationLtv::SamplingFrequency::HZ22050,
+         CodecSpecificCapabilitiesLtv::SupportedSamplingFrequencies::HZ22050},
+        {CodecSpecificConfigurationLtv::SamplingFrequency::HZ24000,
+         CodecSpecificCapabilitiesLtv::SupportedSamplingFrequencies::HZ24000},
+        {CodecSpecificConfigurationLtv::SamplingFrequency::HZ32000,
+         CodecSpecificCapabilitiesLtv::SupportedSamplingFrequencies::HZ32000},
+        {CodecSpecificConfigurationLtv::SamplingFrequency::HZ48000,
+         CodecSpecificCapabilitiesLtv::SupportedSamplingFrequencies::HZ48000},
+        {CodecSpecificConfigurationLtv::SamplingFrequency::HZ88200,
+         CodecSpecificCapabilitiesLtv::SupportedSamplingFrequencies::HZ88200},
+        {CodecSpecificConfigurationLtv::SamplingFrequency::HZ96000,
+         CodecSpecificCapabilitiesLtv::SupportedSamplingFrequencies::HZ96000},
+        {CodecSpecificConfigurationLtv::SamplingFrequency::HZ176400,
+         CodecSpecificCapabilitiesLtv::SupportedSamplingFrequencies::HZ176400},
+        {CodecSpecificConfigurationLtv::SamplingFrequency::HZ192000,
+         CodecSpecificCapabilitiesLtv::SupportedSamplingFrequencies::HZ192000},
+        {CodecSpecificConfigurationLtv::SamplingFrequency::HZ384000,
+         CodecSpecificCapabilitiesLtv::SupportedSamplingFrequencies::HZ384000},
+};
+
+// Helper map from capability's tag to configuration's tag
+std::map<CodecSpecificCapabilitiesLtv::Tag, CodecSpecificConfigurationLtv::Tag>
+    cap_to_cfg_tag_map = {
+        {CodecSpecificCapabilitiesLtv::Tag::supportedSamplingFrequencies,
+         CodecSpecificConfigurationLtv::Tag::samplingFrequency},
+        {CodecSpecificCapabilitiesLtv::Tag::supportedMaxCodecFramesPerSDU,
+         CodecSpecificConfigurationLtv::Tag::codecFrameBlocksPerSDU},
+        {CodecSpecificCapabilitiesLtv::Tag::supportedFrameDurations,
+         CodecSpecificConfigurationLtv::Tag::frameDuration},
+        {CodecSpecificCapabilitiesLtv::Tag::supportedAudioChannelCounts,
+         CodecSpecificConfigurationLtv::Tag::audioChannelAllocation},
+        {CodecSpecificCapabilitiesLtv::Tag::supportedOctetsPerCodecFrame,
+         CodecSpecificConfigurationLtv::Tag::octetsPerCodecFrame},
+};
+
+const std::map<CodecSpecificConfigurationLtv::FrameDuration, uint32_t>
+    fduration_to_support_fduration_map = {
+        {CodecSpecificConfigurationLtv::FrameDuration::US7500,
+         CodecSpecificCapabilitiesLtv::SupportedFrameDurations::US7500},
+        {CodecSpecificConfigurationLtv::FrameDuration::US10000,
+         CodecSpecificCapabilitiesLtv::SupportedFrameDurations::US10000},
+};
+
+std::map<int32_t, CodecSpecificConfigurationLtv::SamplingFrequency>
+    sampling_freq_map = {
+        {16000, CodecSpecificConfigurationLtv::SamplingFrequency::HZ16000},
+        {48000, CodecSpecificConfigurationLtv::SamplingFrequency::HZ48000},
+        {96000, CodecSpecificConfigurationLtv::SamplingFrequency::HZ96000},
+};
+
+std::map<int32_t, CodecSpecificConfigurationLtv::FrameDuration>
+    frame_duration_map = {
+        {7500, CodecSpecificConfigurationLtv::FrameDuration::US7500},
+        {10000, CodecSpecificConfigurationLtv::FrameDuration::US10000},
+};
+
 LeAudioOffloadOutputAudioProvider::LeAudioOffloadOutputAudioProvider()
     : LeAudioOffloadAudioProvider() {
   session_type_ = SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH;
@@ -55,24 +122,23 @@ ndk::ScopedAStatus LeAudioOffloadAudioProvider::startSession(
     const std::shared_ptr<IBluetoothAudioPort>& host_if,
     const AudioConfiguration& audio_config,
     const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return) {
-  if (audio_config.getTag() != AudioConfiguration::leAudioConfig) {
+  if (session_type_ ==
+      SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {
+    if (audio_config.getTag() != AudioConfiguration::leAudioBroadcastConfig) {
+      LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
+                   << audio_config.toString();
+      *_aidl_return = DataMQDesc();
+      return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+    }
+  } else if (audio_config.getTag() != AudioConfiguration::leAudioConfig) {
     LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
                  << audio_config.toString();
     *_aidl_return = DataMQDesc();
     return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
   }
-  const auto& le_audio_config =
-      audio_config.get<AudioConfiguration::leAudioConfig>();
-  if (!BluetoothAudioCodecs::IsOffloadLeAudioConfigurationValid(
-          session_type_, le_audio_config)) {
-    LOG(WARNING) << __func__ << " - Unsupported LC3 Offloaded Configuration="
-                 << le_audio_config.toString();
-    *_aidl_return = DataMQDesc();
-    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
-  }
 
-  return BluetoothAudioProvider::startSession(
-      host_if, audio_config, latency_modes, _aidl_return);
+  return BluetoothAudioProvider::startSession(host_if, audio_config,
+                                              latency_modes, _aidl_return);
 }
 
 ndk::ScopedAStatus LeAudioOffloadAudioProvider::onSessionReady(
@@ -82,6 +148,644 @@ ndk::ScopedAStatus LeAudioOffloadAudioProvider::onSessionReady(
   *_aidl_return = DataMQDesc();
   return ndk::ScopedAStatus::ok();
 }
+ndk::ScopedAStatus LeAudioOffloadAudioProvider::setCodecPriority(
+    const CodecId& in_codecId, int32_t in_priority) {
+  codec_priority_map_[in_codecId] = in_priority;
+  return ndk::ScopedAStatus::ok();
+};
+
+bool LeAudioOffloadAudioProvider::isMatchedValidCodec(CodecId cfg_codec,
+                                                      CodecId req_codec) {
+  auto priority = codec_priority_map_.find(cfg_codec);
+  if (priority != codec_priority_map_.end() && priority->second == -1)
+    return false;
+  return cfg_codec == req_codec;
+}
+
+bool LeAudioOffloadAudioProvider::isCapabilitiesMatchedContext(
+    AudioContext setting_context,
+    const IBluetoothAudioProvider::LeAudioDeviceCapabilities& capabilities) {
+  // If has no metadata, assume match
+  if (!capabilities.metadata.has_value()) return true;
+
+  for (auto metadata : capabilities.metadata.value()) {
+    if (!metadata.has_value()) continue;
+    if (metadata.value().getTag() == MetadataLtv::Tag::preferredAudioContexts) {
+      // Check all pref audio context to see if anything matched
+      auto& context = metadata.value()
+                          .get<MetadataLtv::Tag::preferredAudioContexts>()
+                          .values;
+      if (setting_context.bitmask & context.bitmask) return true;
+    }
+  }
+
+  return false;
+}
+
+bool LeAudioOffloadAudioProvider::isMatchedSamplingFreq(
+    CodecSpecificConfigurationLtv::SamplingFrequency& cfg_freq,
+    CodecSpecificCapabilitiesLtv::SupportedSamplingFrequencies&
+        capability_freq) {
+  for (auto [freq, bitmask] : freq_to_support_bitmask_map)
+    if (cfg_freq == freq) return (capability_freq.bitmask & bitmask);
+  return false;
+}
+
+bool LeAudioOffloadAudioProvider::isMatchedFrameDuration(
+    CodecSpecificConfigurationLtv::FrameDuration& cfg_fduration,
+    CodecSpecificCapabilitiesLtv::SupportedFrameDurations&
+        capability_fduration) {
+  for (auto [fduration, bitmask] : fduration_to_support_fduration_map)
+    if (cfg_fduration == fduration)
+      return (capability_fduration.bitmask & bitmask);
+  return false;
+}
+
+bool LeAudioOffloadAudioProvider::isMatchedAudioChannel(
+    CodecSpecificConfigurationLtv::AudioChannelAllocation&
+    /*cfg_channel*/,
+    CodecSpecificCapabilitiesLtv::SupportedAudioChannelCounts&
+    /*capability_channel*/) {
+  bool isMatched = true;
+  // TODO: how to match?
+  return isMatched;
+}
+
+bool LeAudioOffloadAudioProvider::isMatchedCodecFramesPerSDU(
+    CodecSpecificConfigurationLtv::CodecFrameBlocksPerSDU& cfg_frame_sdu,
+    CodecSpecificCapabilitiesLtv::SupportedMaxCodecFramesPerSDU&
+        capability_frame_sdu) {
+  return cfg_frame_sdu.value <= capability_frame_sdu.value;
+}
+
+bool LeAudioOffloadAudioProvider::isMatchedOctetsPerCodecFrame(
+    CodecSpecificConfigurationLtv::OctetsPerCodecFrame& cfg_octets,
+    CodecSpecificCapabilitiesLtv::SupportedOctetsPerCodecFrame&
+        capability_octets) {
+  return cfg_octets.value >= capability_octets.minimum &&
+         cfg_octets.value <= capability_octets.maximum;
+}
+
+bool LeAudioOffloadAudioProvider::isCapabilitiesMatchedCodecConfiguration(
+    std::vector<CodecSpecificConfigurationLtv>& codec_cfg,
+    std::vector<CodecSpecificCapabilitiesLtv> codec_capabilities) {
+  // Convert all codec_cfg into a map of tags -> correct data
+  std::map<CodecSpecificConfigurationLtv::Tag, CodecSpecificConfigurationLtv>
+      cfg_tag_map;
+  for (auto codec_cfg_data : codec_cfg)
+    cfg_tag_map[codec_cfg_data.getTag()] = codec_cfg_data;
+
+  for (auto& codec_capability : codec_capabilities) {
+    auto cfg = cfg_tag_map.find(cap_to_cfg_tag_map[codec_capability.getTag()]);
+    // Cannot find tag for the capability:
+    if (cfg == cfg_tag_map.end()) return false;
+
+    // Matching logic for sampling frequency
+    if (codec_capability.getTag() ==
+        CodecSpecificCapabilitiesLtv::Tag::supportedSamplingFrequencies) {
+      if (!isMatchedSamplingFreq(
+              cfg->second
+                  .get<CodecSpecificConfigurationLtv::Tag::samplingFrequency>(),
+              codec_capability.get<CodecSpecificCapabilitiesLtv::Tag::
+                                       supportedSamplingFrequencies>()))
+        return false;
+    } else if (codec_capability.getTag() ==
+               CodecSpecificCapabilitiesLtv::Tag::supportedFrameDurations) {
+      if (!isMatchedFrameDuration(
+              cfg->second
+                  .get<CodecSpecificConfigurationLtv::Tag::frameDuration>(),
+              codec_capability.get<CodecSpecificCapabilitiesLtv::Tag::
+                                       supportedFrameDurations>()))
+        return false;
+    } else if (codec_capability.getTag() ==
+               CodecSpecificCapabilitiesLtv::Tag::supportedAudioChannelCounts) {
+      if (!isMatchedAudioChannel(
+              cfg->second.get<
+                  CodecSpecificConfigurationLtv::Tag::audioChannelAllocation>(),
+              codec_capability.get<CodecSpecificCapabilitiesLtv::Tag::
+                                       supportedAudioChannelCounts>()))
+        return false;
+    } else if (codec_capability.getTag() == CodecSpecificCapabilitiesLtv::Tag::
+                                                supportedMaxCodecFramesPerSDU) {
+      if (!isMatchedCodecFramesPerSDU(
+              cfg->second.get<
+                  CodecSpecificConfigurationLtv::Tag::codecFrameBlocksPerSDU>(),
+              codec_capability.get<CodecSpecificCapabilitiesLtv::Tag::
+                                       supportedMaxCodecFramesPerSDU>()))
+        return false;
+    } else if (codec_capability.getTag() == CodecSpecificCapabilitiesLtv::Tag::
+                                                supportedOctetsPerCodecFrame) {
+      if (!isMatchedOctetsPerCodecFrame(
+              cfg->second.get<
+                  CodecSpecificConfigurationLtv::Tag::octetsPerCodecFrame>(),
+              codec_capability.get<CodecSpecificCapabilitiesLtv::Tag::
+                                       supportedOctetsPerCodecFrame>()))
+        return false;
+    }
+  }
+
+  return true;
+}
+
+bool LeAudioOffloadAudioProvider::isMatchedAseConfiguration(
+    LeAudioAseConfiguration setting_cfg,
+    LeAudioAseConfiguration requirement_cfg) {
+  // Check matching for codec configuration <=> requirement ASE codec
+  // Also match if no CodecId requirement
+  if (requirement_cfg.codecId.has_value()) {
+    if (!setting_cfg.codecId.has_value()) return false;
+    if (!isMatchedValidCodec(setting_cfg.codecId.value(),
+                             requirement_cfg.codecId.value()))
+      return false;
+  }
+
+  if (setting_cfg.targetLatency != requirement_cfg.targetLatency) return false;
+  // Ignore PHY requirement
+
+  // Check all codec configuration
+  std::map<CodecSpecificConfigurationLtv::Tag, CodecSpecificConfigurationLtv>
+      cfg_tag_map;
+  for (auto cfg : setting_cfg.codecConfiguration)
+    cfg_tag_map[cfg.getTag()] = cfg;
+
+  for (auto requirement_cfg : requirement_cfg.codecConfiguration) {
+    // Directly compare CodecSpecificConfigurationLtv
+    auto cfg = cfg_tag_map.find(requirement_cfg.getTag());
+    if (cfg == cfg_tag_map.end()) return false;
+
+    if (cfg->second != requirement_cfg) return false;
+  }
+  // Ignore vendor configuration and metadata requirement
+
+  return true;
+}
+
+bool LeAudioOffloadAudioProvider::isMatchedBISConfiguration(
+    LeAudioBisConfiguration bis_cfg,
+    const IBluetoothAudioProvider::LeAudioDeviceCapabilities& capabilities) {
+  if (!isMatchedValidCodec(bis_cfg.codecId, capabilities.codecId)) return false;
+  if (!isCapabilitiesMatchedCodecConfiguration(
+          bis_cfg.codecConfiguration, capabilities.codecSpecificCapabilities))
+    return false;
+  return true;
+}
+
+void LeAudioOffloadAudioProvider::filterCapabilitiesAseDirectionConfiguration(
+    std::vector<std::optional<AseDirectionConfiguration>>&
+        direction_configurations,
+    const IBluetoothAudioProvider::LeAudioDeviceCapabilities& capabilities,
+    std::vector<std::optional<AseDirectionConfiguration>>&
+        valid_direction_configurations) {
+  for (auto direction_configuration : direction_configurations) {
+    if (!direction_configuration.has_value()) continue;
+    if (!direction_configuration.value().aseConfiguration.codecId.has_value())
+      continue;
+    if (!isMatchedValidCodec(
+            direction_configuration.value().aseConfiguration.codecId.value(),
+            capabilities.codecId))
+      continue;
+    // Check matching for codec configuration <=> codec capabilities
+    if (!isCapabilitiesMatchedCodecConfiguration(
+            direction_configuration.value().aseConfiguration.codecConfiguration,
+            capabilities.codecSpecificCapabilities))
+      continue;
+    valid_direction_configurations.push_back(direction_configuration);
+  }
+}
+
+void LeAudioOffloadAudioProvider::filterRequirementAseDirectionConfiguration(
+    std::vector<std::optional<AseDirectionConfiguration>>&
+        direction_configurations,
+    const std::optional<std::vector<std::optional<AseDirectionRequirement>>>&
+        requirements,
+    std::vector<std::optional<AseDirectionConfiguration>>&
+        valid_direction_configurations) {
+  for (auto direction_configuration : direction_configurations) {
+    if (!requirements.has_value()) {
+      // If there's no requirement, all are valid
+      valid_direction_configurations.push_back(direction_configuration);
+      continue;
+    }
+    if (!direction_configuration.has_value()) continue;
+
+    for (auto& requirement : requirements.value()) {
+      if (!requirement.has_value()) continue;
+      if (!isMatchedAseConfiguration(
+              direction_configuration.value().aseConfiguration,
+              requirement.value().aseConfiguration))
+        continue;
+      // Valid if match any requirement.
+      valid_direction_configurations.push_back(direction_configuration);
+      break;
+    }
+  }
+}
+
+/* Get a new LeAudioAseConfigurationSetting by matching a setting with a
+ * capabilities. The new setting will have a filtered list of
+ * AseDirectionConfiguration that matched the capabilities */
+std::optional<LeAudioAseConfigurationSetting>
+LeAudioOffloadAudioProvider::getCapabilitiesMatchedAseConfigurationSettings(
+    IBluetoothAudioProvider::LeAudioAseConfigurationSetting& setting,
+    const IBluetoothAudioProvider::LeAudioDeviceCapabilities& capabilities,
+    uint8_t direction) {
+  // Try to match context in metadata.
+  if (!isCapabilitiesMatchedContext(setting.audioContext, capabilities))
+    return std::nullopt;
+
+  // Get a list of all matched AseDirectionConfiguration
+  // for the input direction
+  std::vector<std::optional<AseDirectionConfiguration>>*
+      direction_configuration = nullptr;
+  if (direction == kLeAudioDirectionSink) {
+    if (!setting.sinkAseConfiguration.has_value()) return std::nullopt;
+    direction_configuration = &setting.sinkAseConfiguration.value();
+  } else {
+    if (!setting.sourceAseConfiguration.has_value()) return std::nullopt;
+    direction_configuration = &setting.sourceAseConfiguration.value();
+  }
+  std::vector<std::optional<AseDirectionConfiguration>>
+      valid_direction_configuration;
+  filterCapabilitiesAseDirectionConfiguration(
+      *direction_configuration, capabilities, valid_direction_configuration);
+  if (valid_direction_configuration.empty()) return std::nullopt;
+
+  // Create a new LeAudioAseConfigurationSetting and return
+  LeAudioAseConfigurationSetting filtered_setting;
+  filtered_setting.audioContext = setting.audioContext;
+  filtered_setting.packing = setting.packing;
+  if (direction == kLeAudioDirectionSink) {
+    filtered_setting.sinkAseConfiguration = valid_direction_configuration;
+  } else {
+    filtered_setting.sourceAseConfiguration = valid_direction_configuration;
+  }
+  filtered_setting.flags = setting.flags;
+
+  return filtered_setting;
+}
+
+/* Get a new LeAudioAseConfigurationSetting by matching a setting with a
+ * requirement. The new setting will have a filtered list of
+ * AseDirectionConfiguration that matched the requirement */
+std::optional<LeAudioAseConfigurationSetting>
+LeAudioOffloadAudioProvider::getRequirementMatchedAseConfigurationSettings(
+    IBluetoothAudioProvider::LeAudioAseConfigurationSetting& setting,
+    const IBluetoothAudioProvider::LeAudioConfigurationRequirement&
+        requirement) {
+  // Try to match context in metadata.
+  if (setting.audioContext != requirement.audioContext) return std::nullopt;
+
+  // Check requirement for the correct direction
+  const std::optional<std::vector<std::optional<AseDirectionRequirement>>>*
+      direction_requirement;
+  std::vector<std::optional<AseDirectionConfiguration>>*
+      direction_configuration;
+  if (setting.sinkAseConfiguration.has_value()) {
+    direction_configuration = &setting.sinkAseConfiguration.value();
+    direction_requirement = &requirement.sinkAseRequirement;
+  } else {
+    direction_configuration = &setting.sourceAseConfiguration.value();
+    direction_requirement = &requirement.sourceAseRequirement;
+  }
+
+  std::vector<std::optional<AseDirectionConfiguration>>
+      valid_direction_configuration;
+  filterRequirementAseDirectionConfiguration(*direction_configuration,
+                                             *direction_requirement,
+                                             valid_direction_configuration);
+  if (valid_direction_configuration.empty()) return std::nullopt;
+
+  // Create a new LeAudioAseConfigurationSetting and return
+  LeAudioAseConfigurationSetting filtered_setting;
+  filtered_setting.audioContext = setting.audioContext;
+  filtered_setting.packing = setting.packing;
+  if (setting.sinkAseConfiguration.has_value())
+    filtered_setting.sinkAseConfiguration = valid_direction_configuration;
+  else
+    filtered_setting.sourceAseConfiguration = valid_direction_configuration;
+  filtered_setting.flags = setting.flags;
+
+  return filtered_setting;
+}
+
+ndk::ScopedAStatus LeAudioOffloadAudioProvider::getLeAudioAseConfiguration(
+    const std::optional<std::vector<
+        std::optional<IBluetoothAudioProvider::LeAudioDeviceCapabilities>>>&
+        in_remoteSinkAudioCapabilities,
+    const std::optional<std::vector<
+        std::optional<IBluetoothAudioProvider::LeAudioDeviceCapabilities>>>&
+        in_remoteSourceAudioCapabilities,
+    const std::vector<IBluetoothAudioProvider::LeAudioConfigurationRequirement>&
+        in_requirements,
+    std::vector<IBluetoothAudioProvider::LeAudioAseConfigurationSetting>*
+        _aidl_return) {
+  // Get all configuration settings
+  std::vector<IBluetoothAudioProvider::LeAudioAseConfigurationSetting>
+      ase_configuration_settings =
+          BluetoothAudioCodecs::GetLeAudioAseConfigurationSettings();
+
+  // Currently won't handle case where both sink and source capabilities
+  // are passed in. Only handle one of them.
+  const std::optional<std::vector<
+      std::optional<IBluetoothAudioProvider::LeAudioDeviceCapabilities>>>*
+      in_remoteAudioCapabilities;
+  uint8_t direction = 0;
+  if (in_remoteSinkAudioCapabilities.has_value()) {
+    direction = kLeAudioDirectionSink;
+    in_remoteAudioCapabilities = &in_remoteSinkAudioCapabilities;
+  } else {
+    direction = kLeAudioDirectionSource;
+    in_remoteAudioCapabilities = &in_remoteSourceAudioCapabilities;
+  }
+
+  std::vector<IBluetoothAudioProvider::LeAudioAseConfigurationSetting>
+      capability_matched_ase_configuration_settings;
+  // Matching with remote capabilities
+  for (auto& setting : ase_configuration_settings) {
+    for (auto& capability : in_remoteAudioCapabilities->value()) {
+      if (!capability.has_value()) continue;
+      auto filtered_ase_configuration_setting =
+          getCapabilitiesMatchedAseConfigurationSettings(
+              setting, capability.value(), direction);
+      if (filtered_ase_configuration_setting.has_value()) {
+        capability_matched_ase_configuration_settings.push_back(
+            filtered_ase_configuration_setting.value());
+      }
+    }
+  }
+
+  // Matching with requirements
+  std::vector<IBluetoothAudioProvider::LeAudioAseConfigurationSetting> result;
+  for (auto& setting : capability_matched_ase_configuration_settings) {
+    for (auto& requirement : in_requirements) {
+      auto filtered_ase_configuration_setting =
+          getRequirementMatchedAseConfigurationSettings(setting, requirement);
+      if (filtered_ase_configuration_setting.has_value()) {
+        result.push_back(filtered_ase_configuration_setting.value());
+      }
+    }
+  }
+
+  *_aidl_return = result;
+  return ndk::ScopedAStatus::ok();
+};
+
+bool LeAudioOffloadAudioProvider::isMatchedQosRequirement(
+    LeAudioAseQosConfiguration setting_qos,
+    AseQosDirectionRequirement requirement_qos) {
+  if (setting_qos.retransmissionNum !=
+      requirement_qos.preferredRetransmissionNum)
+    return false;
+  if (setting_qos.maxTransportLatencyMs > requirement_qos.maxTransportLatencyMs)
+    return false;
+  // Ignore other parameters, as they are not populated in the setting_qos
+  return true;
+}
+
+ndk::ScopedAStatus LeAudioOffloadAudioProvider::getLeAudioAseQosConfiguration(
+    const IBluetoothAudioProvider::LeAudioAseQosConfigurationRequirement&
+        in_qosRequirement,
+    IBluetoothAudioProvider::LeAudioAseQosConfigurationPair* _aidl_return) {
+  IBluetoothAudioProvider::LeAudioAseQosConfigurationPair result;
+  // Get all configuration settings
+  std::vector<IBluetoothAudioProvider::LeAudioAseConfigurationSetting>
+      ase_configuration_settings =
+          BluetoothAudioCodecs::GetLeAudioAseConfigurationSettings();
+
+  // Direction QoS matching
+  // Only handle one direction input case
+  uint8_t direction = 0;
+  std::optional<AseQosDirectionRequirement> direction_qos_requirement =
+      std::nullopt;
+  if (in_qosRequirement.sinkAseQosRequirement.has_value()) {
+    direction_qos_requirement = in_qosRequirement.sinkAseQosRequirement.value();
+    direction = kLeAudioDirectionSink;
+  } else if (in_qosRequirement.sourceAseQosRequirement.has_value()) {
+    direction_qos_requirement =
+        in_qosRequirement.sourceAseQosRequirement.value();
+    direction = kLeAudioDirectionSource;
+  }
+
+  for (auto& setting : ase_configuration_settings) {
+    // Context matching
+    if (setting.audioContext != in_qosRequirement.contextType) continue;
+
+    // Match configuration flags
+    // Currently configuration flags are not populated, ignore.
+
+    // Get a list of all matched AseDirectionConfiguration
+    // for the input direction
+    std::vector<std::optional<AseDirectionConfiguration>>*
+        direction_configuration = nullptr;
+    if (direction == kLeAudioDirectionSink) {
+      if (!setting.sinkAseConfiguration.has_value()) continue;
+      direction_configuration = &setting.sinkAseConfiguration.value();
+    } else {
+      if (!setting.sourceAseConfiguration.has_value()) continue;
+      direction_configuration = &setting.sourceAseConfiguration.value();
+    }
+
+    for (auto cfg : *direction_configuration) {
+      if (!cfg.has_value()) continue;
+      // If no requirement, return the first QoS
+      if (!direction_qos_requirement.has_value()) {
+        result.sinkQosConfiguration = cfg.value().qosConfiguration;
+        result.sourceQosConfiguration = cfg.value().qosConfiguration;
+        *_aidl_return = result;
+        return ndk::ScopedAStatus::ok();
+      }
+
+      // If has requirement, return the first matched QoS
+      // Try to match the ASE configuration
+      // and QoS with requirement
+      if (!cfg.value().qosConfiguration.has_value()) continue;
+      if (isMatchedAseConfiguration(
+              cfg.value().aseConfiguration,
+              direction_qos_requirement.value().aseConfiguration) &&
+          isMatchedQosRequirement(cfg.value().qosConfiguration.value(),
+                                  direction_qos_requirement.value())) {
+        if (direction == kLeAudioDirectionSink)
+          result.sinkQosConfiguration = cfg.value().qosConfiguration;
+        else
+          result.sourceQosConfiguration = cfg.value().qosConfiguration;
+        *_aidl_return = result;
+        return ndk::ScopedAStatus::ok();
+      }
+    }
+  }
+
+  // No match, return empty QoS
+  *_aidl_return = result;
+  return ndk::ScopedAStatus::ok();
+};
+
+ndk::ScopedAStatus LeAudioOffloadAudioProvider::onSinkAseMetadataChanged(
+    IBluetoothAudioProvider::AseState in_state, int32_t /*in_cigId*/,
+    int32_t /*in_cisId*/,
+    const std::optional<std::vector<std::optional<MetadataLtv>>>& in_metadata) {
+  (void)in_state;
+  (void)in_metadata;
+  return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+};
+
+ndk::ScopedAStatus LeAudioOffloadAudioProvider::onSourceAseMetadataChanged(
+    IBluetoothAudioProvider::AseState in_state, int32_t /*in_cigId*/,
+    int32_t /*in_cisId*/,
+    const std::optional<std::vector<std::optional<MetadataLtv>>>& in_metadata) {
+  (void)in_state;
+  (void)in_metadata;
+  return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
+};
+
+void LeAudioOffloadAudioProvider::getBroadcastSettings() {
+  if (!broadcast_settings.empty()) return;
+
+  LOG(INFO) << __func__ << ": Loading broadcast settings from provider info";
+
+  std::vector<CodecInfo> db_codec_info =
+      BluetoothAudioCodecs::GetLeAudioOffloadCodecInfo(
+          SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH);
+  broadcast_settings.clear();
+  CodecSpecificConfigurationLtv::AudioChannelAllocation default_allocation;
+  default_allocation.bitmask =
+      CodecSpecificConfigurationLtv::AudioChannelAllocation::FRONT_CENTER;
+
+  for (auto& codec_info : db_codec_info) {
+    if (codec_info.transport.getTag() != CodecInfo::Transport::leAudio)
+      continue;
+    auto& transport = codec_info.transport.get<CodecInfo::Transport::leAudio>();
+    LeAudioBroadcastConfigurationSetting setting;
+    // Default setting
+    setting.numBis = 1;
+    setting.phy = {Phy::TWO_M};
+    // Populate BIS configuration info using codec_info
+    LeAudioBisConfiguration bis_cfg;
+    bis_cfg.codecId = codec_info.id;
+
+    CodecSpecificConfigurationLtv::OctetsPerCodecFrame octets;
+    octets.value = transport.bitdepth[0];
+
+    bis_cfg.codecConfiguration = {
+        sampling_freq_map[transport.samplingFrequencyHz[0]], octets,
+        frame_duration_map[transport.frameDurationUs[0]], default_allocation};
+
+    // Add information to structure
+    IBluetoothAudioProvider::LeAudioSubgroupBisConfiguration sub_bis_cfg;
+    sub_bis_cfg.numBis = 1;
+    sub_bis_cfg.bisConfiguration = bis_cfg;
+    IBluetoothAudioProvider::LeAudioBroadcastSubgroupConfiguration sub_cfg;
+    sub_cfg.bisConfigurations = {sub_bis_cfg};
+    setting.subgroupsConfigurations = {sub_cfg};
+
+    broadcast_settings.push_back(setting);
+  }
+
+  LOG(INFO) << __func__
+            << ": Done loading broadcast settings from provider info";
+}
+
+/* Get a new LeAudioAseConfigurationSetting by matching a setting with a
+ * capabilities. The new setting will have a filtered list of
+ * AseDirectionConfiguration that matched the capabilities */
+std::optional<LeAudioBroadcastConfigurationSetting>
+LeAudioOffloadAudioProvider::
+    getCapabilitiesMatchedBroadcastConfigurationSettings(
+        LeAudioBroadcastConfigurationSetting& setting,
+        const IBluetoothAudioProvider::LeAudioDeviceCapabilities&
+            capabilities) {
+  std::vector<IBluetoothAudioProvider::LeAudioBroadcastSubgroupConfiguration>
+      filter_subgroup;
+  for (auto& sub_cfg : setting.subgroupsConfigurations) {
+    std::vector<IBluetoothAudioProvider::LeAudioSubgroupBisConfiguration>
+        filtered_bis_cfg;
+    for (auto& bis_cfg : sub_cfg.bisConfigurations)
+      if (isMatchedBISConfiguration(bis_cfg.bisConfiguration, capabilities)) {
+        filtered_bis_cfg.push_back(bis_cfg);
+      }
+    if (!filtered_bis_cfg.empty()) {
+      IBluetoothAudioProvider::LeAudioBroadcastSubgroupConfiguration
+          subgroup_cfg;
+      subgroup_cfg.bisConfigurations = filtered_bis_cfg;
+      filter_subgroup.push_back(subgroup_cfg);
+    }
+  }
+  if (filter_subgroup.empty()) return std::nullopt;
+
+  // Create a new LeAudioAseConfigurationSetting and return
+  LeAudioBroadcastConfigurationSetting filtered_setting(setting);
+  filtered_setting.subgroupsConfigurations = filter_subgroup;
+
+  return filtered_setting;
+}
+
+ndk::ScopedAStatus
+LeAudioOffloadAudioProvider::getLeAudioBroadcastConfiguration(
+    const std::optional<std::vector<
+        std::optional<IBluetoothAudioProvider::LeAudioDeviceCapabilities>>>&
+        in_remoteSinkAudioCapabilities,
+    const IBluetoothAudioProvider::LeAudioBroadcastConfigurationRequirement&
+        in_requirement,
+    LeAudioBroadcastConfigurationSetting* _aidl_return) {
+  getBroadcastSettings();
+  _aidl_return = nullptr;
+
+  // Match and filter capability
+  std::vector<LeAudioBroadcastConfigurationSetting> filtered_settings;
+  if (!in_remoteSinkAudioCapabilities.has_value()) {
+    LOG(WARNING) << __func__ << ": Empty capability";
+    return ndk::ScopedAStatus::ok();
+  }
+  for (auto& setting : broadcast_settings) {
+    for (auto& capability : in_remoteSinkAudioCapabilities.value()) {
+      if (!capability.has_value()) continue;
+      auto filtered_setting =
+          getCapabilitiesMatchedBroadcastConfigurationSettings(
+              setting, capability.value());
+      if (filtered_setting.has_value())
+        filtered_settings.push_back(filtered_setting.value());
+    }
+  }
+
+  if (filtered_settings.empty()) {
+    LOG(WARNING) << __func__ << ": Cannot match any remote capability";
+    return ndk::ScopedAStatus::ok();
+  }
+
+  // Match and return the first matched requirement
+  if (in_requirement.subgroupConfigurationRequirements.empty()) {
+    LOG(INFO) << __func__ << ": Empty requirement";
+    *_aidl_return = filtered_settings[0];
+    return ndk::ScopedAStatus::ok();
+  }
+
+  for (auto& setting : filtered_settings) {
+    // Further filter out bis configuration
+    LeAudioBroadcastConfigurationSetting filtered_setting(setting);
+    filtered_setting.subgroupsConfigurations.clear();
+    for (auto& sub_cfg : setting.subgroupsConfigurations) {
+      bool isMatched = false;
+      for (auto& sub_req : in_requirement.subgroupConfigurationRequirements) {
+        // Matching number of BIS
+        if (sub_req.bisNumPerSubgroup != sub_cfg.bisConfigurations.size())
+          continue;
+        // Currently will ignore quality and context hint.
+        isMatched = true;
+        break;
+      }
+      if (isMatched)
+        filtered_setting.subgroupsConfigurations.push_back(sub_cfg);
+    }
+    // Return the first match
+    if (!filtered_setting.subgroupsConfigurations.empty()) {
+      LOG(INFO) << __func__ << ": Matched requirement";
+      *_aidl_return = filtered_setting;
+      return ndk::ScopedAStatus::ok();
+    }
+  }
+
+  LOG(WARNING) << __func__ << ": Cannot match any requirement";
+  return ndk::ScopedAStatus::ok();
+};
 
 }  // namespace audio
 }  // namespace bluetooth

bluetooth/audio/hal/LeAudioOffloadAudioProvider.h

@@ -16,7 +16,12 @@
 
 #pragma once
 
+#include <map>
+
 #include "BluetoothAudioProvider.h"
+#include "aidl/android/hardware/bluetooth/audio/LeAudioAseConfiguration.h"
+#include "aidl/android/hardware/bluetooth/audio/MetadataLtv.h"
+#include "aidl/android/hardware/bluetooth/audio/SessionType.h"
 
 namespace aidl {
 namespace android {
@@ -24,6 +29,19 @@ namespace hardware {
 namespace bluetooth {
 namespace audio {
 
+using LeAudioAseConfigurationSetting =
+    IBluetoothAudioProvider::LeAudioAseConfigurationSetting;
+using AseDirectionRequirement = IBluetoothAudioProvider::
+    LeAudioConfigurationRequirement::AseDirectionRequirement;
+using AseDirectionConfiguration = IBluetoothAudioProvider::
+    LeAudioAseConfigurationSetting::AseDirectionConfiguration;
+using AseQosDirectionRequirement = IBluetoothAudioProvider::
+    LeAudioAseQosConfigurationRequirement::AseQosDirectionRequirement;
+using LeAudioAseQosConfiguration =
+    IBluetoothAudioProvider::LeAudioAseQosConfiguration;
+using LeAudioBroadcastConfigurationSetting =
+    IBluetoothAudioProvider::LeAudioBroadcastConfigurationSetting;
+
 class LeAudioOffloadAudioProvider : public BluetoothAudioProvider {
  public:
   LeAudioOffloadAudioProvider();
@@ -33,11 +51,112 @@ class LeAudioOffloadAudioProvider : public BluetoothAudioProvider {
   ndk::ScopedAStatus startSession(
       const std::shared_ptr<IBluetoothAudioPort>& host_if,
       const AudioConfiguration& audio_config,
-      const std::vector<LatencyMode>& latency_modes,
-      DataMQDesc* _aidl_return);
+      const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return);
+  ndk::ScopedAStatus setCodecPriority(const CodecId& in_codecId,
+                                      int32_t in_priority) override;
+  ndk::ScopedAStatus getLeAudioAseConfiguration(
+      const std::optional<std::vector<
+          std::optional<IBluetoothAudioProvider::LeAudioDeviceCapabilities>>>&
+          in_remoteSinkAudioCapabilities,
+      const std::optional<std::vector<
+          std::optional<IBluetoothAudioProvider::LeAudioDeviceCapabilities>>>&
+          in_remoteSourceAudioCapabilities,
+      const std::vector<
+          IBluetoothAudioProvider::LeAudioConfigurationRequirement>&
+          in_requirements,
+      std::vector<IBluetoothAudioProvider::LeAudioAseConfigurationSetting>*
+          _aidl_return) override;
+  ndk::ScopedAStatus getLeAudioAseQosConfiguration(
+      const IBluetoothAudioProvider::LeAudioAseQosConfigurationRequirement&
+          in_qosRequirement,
+      IBluetoothAudioProvider::LeAudioAseQosConfigurationPair* _aidl_return)
+      override;
+  ndk::ScopedAStatus onSourceAseMetadataChanged(
+      IBluetoothAudioProvider::AseState in_state, int32_t in_cigId,
+      int32_t in_cisId,
+      const std::optional<std::vector<std::optional<MetadataLtv>>>& in_metadata)
+      override;
+  ndk::ScopedAStatus onSinkAseMetadataChanged(
+      IBluetoothAudioProvider::AseState in_state, int32_t in_cigId,
+      int32_t in_cisId,
+      const std::optional<std::vector<std::optional<MetadataLtv>>>& in_metadata)
+      override;
+  ndk::ScopedAStatus getLeAudioBroadcastConfiguration(
+      const std::optional<std::vector<
+          std::optional<IBluetoothAudioProvider::LeAudioDeviceCapabilities>>>&
+          in_remoteSinkAudioCapabilities,
+      const IBluetoothAudioProvider::LeAudioBroadcastConfigurationRequirement&
+          in_requirement,
+      LeAudioBroadcastConfigurationSetting* _aidl_return) override;
 
  private:
   ndk::ScopedAStatus onSessionReady(DataMQDesc* _aidl_return) override;
+  std::map<CodecId, uint32_t> codec_priority_map_;
+  std::vector<LeAudioBroadcastConfigurationSetting> broadcast_settings;
+
+  // Private matching function definitions
+  bool isMatchedValidCodec(CodecId cfg_codec, CodecId req_codec);
+  bool isCapabilitiesMatchedContext(
+      AudioContext setting_context,
+      const IBluetoothAudioProvider::LeAudioDeviceCapabilities& capabilities);
+  bool isMatchedSamplingFreq(
+      CodecSpecificConfigurationLtv::SamplingFrequency& cfg_freq,
+      CodecSpecificCapabilitiesLtv::SupportedSamplingFrequencies&
+          capability_freq);
+  bool isMatchedFrameDuration(
+      CodecSpecificConfigurationLtv::FrameDuration& cfg_fduration,
+      CodecSpecificCapabilitiesLtv::SupportedFrameDurations&
+          capability_fduration);
+  bool isMatchedAudioChannel(
+      CodecSpecificConfigurationLtv::AudioChannelAllocation& cfg_channel,
+      CodecSpecificCapabilitiesLtv::SupportedAudioChannelCounts&
+          capability_channel);
+  bool isMatchedCodecFramesPerSDU(
+      CodecSpecificConfigurationLtv::CodecFrameBlocksPerSDU& cfg_frame_sdu,
+      CodecSpecificCapabilitiesLtv::SupportedMaxCodecFramesPerSDU&
+          capability_frame_sdu);
+  bool isMatchedOctetsPerCodecFrame(
+      CodecSpecificConfigurationLtv::OctetsPerCodecFrame& cfg_octets,
+      CodecSpecificCapabilitiesLtv::SupportedOctetsPerCodecFrame&
+          capability_octets);
+  bool isCapabilitiesMatchedCodecConfiguration(
+      std::vector<CodecSpecificConfigurationLtv>& codec_cfg,
+      std::vector<CodecSpecificCapabilitiesLtv> codec_capabilities);
+  bool isMatchedAseConfiguration(LeAudioAseConfiguration setting_cfg,
+                                 LeAudioAseConfiguration requirement_cfg);
+  bool isMatchedBISConfiguration(
+      LeAudioBisConfiguration bis_cfg,
+      const IBluetoothAudioProvider::LeAudioDeviceCapabilities& capabilities);
+  void filterCapabilitiesAseDirectionConfiguration(
+      std::vector<std::optional<AseDirectionConfiguration>>&
+          direction_configurations,
+      const IBluetoothAudioProvider::LeAudioDeviceCapabilities& capabilities,
+      std::vector<std::optional<AseDirectionConfiguration>>&
+          valid_direction_configurations);
+  void filterRequirementAseDirectionConfiguration(
+      std::vector<std::optional<AseDirectionConfiguration>>&
+          direction_configurations,
+      const std::optional<std::vector<std::optional<AseDirectionRequirement>>>&
+          requirements,
+      std::vector<std::optional<AseDirectionConfiguration>>&
+          valid_direction_configurations);
+  std::optional<LeAudioAseConfigurationSetting>
+  getCapabilitiesMatchedAseConfigurationSettings(
+      IBluetoothAudioProvider::LeAudioAseConfigurationSetting& setting,
+      const IBluetoothAudioProvider::LeAudioDeviceCapabilities& capabilities,
+      uint8_t direction);
+  std::optional<LeAudioAseConfigurationSetting>
+  getRequirementMatchedAseConfigurationSettings(
+      IBluetoothAudioProvider::LeAudioAseConfigurationSetting& setting,
+      const IBluetoothAudioProvider::LeAudioConfigurationRequirement&
+          requirement);
+  bool isMatchedQosRequirement(LeAudioAseQosConfiguration setting_qos,
+                               AseQosDirectionRequirement requirement_qos);
+  std::optional<LeAudioBroadcastConfigurationSetting>
+  getCapabilitiesMatchedBroadcastConfigurationSettings(
+      LeAudioBroadcastConfigurationSetting& setting,
+      const IBluetoothAudioProvider::LeAudioDeviceCapabilities& capabilities);
+  void getBroadcastSettings();
 };
 
 class LeAudioOffloadOutputAudioProvider : public LeAudioOffloadAudioProvider {

bluetooth/audio/hal/bluetooth_audio_system.xml

@@ -1,7 +1,7 @@
 <manifest version="1.0" type="framework">
     <hal format="aidl">
         <name>android.hardware.bluetooth.audio</name>
-        <version>3</version>
+        <version>4</version>
         <fqname>IBluetoothAudioProviderFactory/sysbta</fqname>
     </hal>
     <hal>

bluetooth/audio/hw/Android.bp

@@ -9,8 +9,11 @@ cc_library_shared {
         "utils.cc",
     ],
     header_libs: ["libhardware_headers"],
+    defaults: [
+        "latest_android_hardware_audio_common_ndk_shared",
+        "latest_android_hardware_bluetooth_audio_ndk_shared",
+    ],
     shared_libs: [
-        "android.hardware.bluetooth.audio-V3-ndk",
         "libbluetooth_audio_session_aidl_system",
         "libaudioutils",
         "libbase",

bluetooth/audio/hw/audio_bluetooth_hw.cc

@@ -17,7 +17,6 @@
 #define LOG_TAG "BTAudioHw"
 
 #include <android-base/logging.h>
-#include <errno.h>
 #include <hardware/hardware.h>
 #include <log/log.h>
 #include <malloc.h>
@@ -39,7 +38,8 @@ static int adev_set_parameters(struct audio_hw_device* dev,
 
   LOG(VERBOSE) << __func__ << ": ParamsMap=[" << GetAudioParamString(params)
                << "]";
-  if (params.find("A2dpSuspended") == params.end()) {
+  if (params.find("A2dpSuspended") == params.end() &&
+      params.find("LeAudioSuspended") == params.end()) {
     return -ENOSYS;
   }
 
@@ -99,6 +99,67 @@ static int adev_get_mic_mute(const struct audio_hw_device* dev, bool* state) {
   return -ENOSYS;
 }
 
+static int adev_create_audio_patch(struct audio_hw_device* device,
+                                   unsigned int num_sources,
+                                   const struct audio_port_config* sources,
+                                   unsigned int num_sinks,
+                                   const struct audio_port_config* sinks,
+                                   audio_patch_handle_t* handle) {
+  if (device == nullptr || sources == nullptr || sinks == nullptr ||
+      handle == nullptr || num_sources != 1 || num_sinks == 0 ||
+      num_sinks > AUDIO_PATCH_PORTS_MAX) {
+    return -EINVAL;
+  }
+  if (sources[0].type == AUDIO_PORT_TYPE_DEVICE) {
+    if (num_sinks != 1 || sinks[0].type != AUDIO_PORT_TYPE_MIX) {
+      return -EINVAL;
+    }
+  } else if (sources[0].type == AUDIO_PORT_TYPE_MIX) {
+    for (unsigned int i = 0; i < num_sinks; i++) {
+      if (sinks[i].type != AUDIO_PORT_TYPE_DEVICE) {
+        return -EINVAL;
+      }
+    }
+  } else {
+    return -EINVAL;
+  }
+
+  auto* bluetooth_device = reinterpret_cast<BluetoothAudioDevice*>(device);
+  std::lock_guard<std::mutex> guard(bluetooth_device->mutex_);
+  if (*handle == AUDIO_PATCH_HANDLE_NONE) {
+    *handle = ++bluetooth_device->next_unique_id;
+  }
+
+  LOG(INFO) << __func__ << ": device=" << std::hex << sinks[0].ext.device.type
+            << " handle: " << *handle;
+  return 0;
+}
+
+static int adev_release_audio_patch(struct audio_hw_device* device,
+                                    audio_patch_handle_t patch_handle) {
+  if (device == nullptr) {
+    return -EINVAL;
+  }
+  LOG(INFO) << __func__ << ": patch_handle=" << patch_handle;
+  return 0;
+}
+
+static int adev_get_audio_port_v7(struct audio_hw_device* device,
+                                  struct audio_port_v7* port) {
+  if (device == nullptr || port == nullptr) {
+    return -EINVAL;
+  }
+  return -ENOSYS;
+}
+
+static int adev_get_audio_port(struct audio_hw_device* device,
+                               struct audio_port* port) {
+  if (device == nullptr || port == nullptr) {
+    return -EINVAL;
+  }
+  return -ENOSYS;
+}
+
 static int adev_dump(const audio_hw_device_t* device, int fd) { return 0; }
 
 static int adev_close(hw_device_t* device) {
@@ -117,7 +178,7 @@ static int adev_open(const hw_module_t* module, const char* name,
   if (!adev) return -ENOMEM;
 
   adev->common.tag = HARDWARE_DEVICE_TAG;
-  adev->common.version = AUDIO_DEVICE_API_VERSION_2_0;
+  adev->common.version = AUDIO_DEVICE_API_VERSION_3_2;
   adev->common.module = (struct hw_module_t*)module;
   adev->common.close = adev_close;
 
@@ -138,6 +199,10 @@ static int adev_open(const hw_module_t* module, const char* name,
   adev->dump = adev_dump;
   adev->set_master_mute = adev_set_master_mute;
   adev->get_master_mute = adev_get_master_mute;
+  adev->create_audio_patch = adev_create_audio_patch;
+  adev->release_audio_patch = adev_release_audio_patch;
+  adev->get_audio_port_v7 = adev_get_audio_port_v7;
+  adev->get_audio_port = adev_get_audio_port;
 
   *device = &adev->common;
   return 0;

bluetooth/audio/hw/device_port_proxy.cc

@@ -34,12 +34,17 @@ namespace bluetooth {
 namespace audio {
 namespace aidl {
 
+using ::aidl::android::hardware::audio::common::SinkMetadata;
+using ::aidl::android::hardware::audio::common::SourceMetadata;
 using ::aidl::android::hardware::bluetooth::audio::AudioConfiguration;
 using ::aidl::android::hardware::bluetooth::audio::BluetoothAudioSessionControl;
 using ::aidl::android::hardware::bluetooth::audio::ChannelMode;
 using ::aidl::android::hardware::bluetooth::audio::PcmConfiguration;
 using ::aidl::android::hardware::bluetooth::audio::PortStatusCallbacks;
 using ::aidl::android::hardware::bluetooth::audio::PresentationPosition;
+using ::aidl::android::media::audio::common::AudioContentType;
+using ::aidl::android::media::audio::common::AudioSource;
+using ::aidl::android::media::audio::common::AudioUsage;
 
 using ::android::base::StringPrintf;
 using ControlResultCallback = std::function<void(
@@ -94,6 +99,20 @@ audio_format_t BitsPerSampleToAudioFormat(uint8_t bits_per_sample,
   }
 }
 
+std::vector<std::string> CovertAudioTagFromV7(char* tags_v7) {
+  std::vector<std::string> tags;
+  char tags_copy[AUDIO_ATTRIBUTES_TAGS_MAX_SIZE];
+  strlcpy(tags_copy, tags_v7, AUDIO_ATTRIBUTES_TAGS_MAX_SIZE);
+  char* tag = strtok(tags_copy, ";");
+
+  while (tag != NULL) {
+    tags.push_back(tag);
+    tag = strtok(NULL, ";");
+  }
+
+  return tags;
+}
+
 // The maximum time to wait in std::condition_variable::wait_for()
 constexpr unsigned int kMaxWaitingTimeMs = 4500;
 
@@ -577,7 +596,7 @@ bool BluetoothAudioPortAidl::GetPresentationPosition(
 }
 
 void BluetoothAudioPortAidl::UpdateSourceMetadata(
-    const source_metadata* source_metadata) const {
+    const source_metadata_v7* source_metadata) const {
   if (!in_use()) {
     LOG(ERROR) << __func__ << ": BluetoothAudioPortAidl is not in use";
     return;
@@ -586,13 +605,25 @@ void BluetoothAudioPortAidl::UpdateSourceMetadata(
              << ", cookie=" << StringPrintf("%#hx", cookie_)
              << ", state=" << state_ << ", " << source_metadata->track_count
              << " track(s)";
-  if (source_metadata->track_count == 0) return;
+  ssize_t track_count = source_metadata->track_count;
+  if (track_count == 0) return;
+  SourceMetadata hal_source_metadata;
+  hal_source_metadata.tracks.resize(track_count);
+  for (int i = 0; i < track_count; i++) {
+    hal_source_metadata.tracks[i].usage =
+        static_cast<AudioUsage>(source_metadata->tracks[i].base.usage);
+    hal_source_metadata.tracks[i].contentType = static_cast<AudioContentType>(
+        source_metadata->tracks[i].base.content_type);
+    hal_source_metadata.tracks[i].tags =
+        std::move(CovertAudioTagFromV7(source_metadata->tracks[i].tags));
+  }
+
   BluetoothAudioSessionControl::UpdateSourceMetadata(session_type_,
-                                                     *source_metadata);
+                                                     hal_source_metadata);
 }
 
 void BluetoothAudioPortAidl::UpdateSinkMetadata(
-    const sink_metadata* sink_metadata) const {
+    const sink_metadata_v7* sink_metadata) const {
   if (!in_use()) {
     LOG(ERROR) << __func__ << ": BluetoothAudioPortAidl is not in use";
     return;
@@ -601,9 +632,20 @@ void BluetoothAudioPortAidl::UpdateSinkMetadata(
              << ", cookie=" << StringPrintf("%#hx", cookie_)
              << ", state=" << state_ << ", " << sink_metadata->track_count
              << " track(s)";
-  if (sink_metadata->track_count == 0) return;
+  ssize_t track_count = sink_metadata->track_count;
+  if (track_count == 0) return;
+  SinkMetadata hal_sink_metadata;
+  hal_sink_metadata.tracks.resize(track_count);
+  for (int i = 0; i < track_count; i++) {
+    hal_sink_metadata.tracks[i].source =
+        static_cast<AudioSource>(sink_metadata->tracks[i].base.source);
+    hal_sink_metadata.tracks[i].gain = sink_metadata->tracks[i].base.gain;
+    hal_sink_metadata.tracks[i].tags =
+        std::move(CovertAudioTagFromV7(sink_metadata->tracks[i].tags));
+  }
+
   BluetoothAudioSessionControl::UpdateSinkMetadata(session_type_,
-                                                   *sink_metadata);
+                                                   hal_sink_metadata);
 }
 
 BluetoothStreamState BluetoothAudioPortAidl::GetState() const { return state_; }

bluetooth/audio/hw/device_port_proxy.h

@@ -16,6 +16,8 @@
 
 #pragma once
 
+#include <aidl/android/hardware/audio/common/SinkMetadata.h>
+#include <aidl/android/hardware/audio/common/SourceMetadata.h>
 #include <aidl/android/hardware/bluetooth/audio/BluetoothAudioStatus.h>
 #include <aidl/android/hardware/bluetooth/audio/SessionType.h>
 #include <hardware/audio.h>
@@ -93,12 +95,6 @@ class BluetoothAudioPort {
     return false;
   }
 
-  /***
-   * Called by the Audio framework / HAL when the metadata of the stream's
-   * source has been changed.
-   ***/
-  virtual void UpdateSourceMetadata(const source_metadata*) const {};
-
   /***
    * Return the current BluetoothStreamState
    ***/
@@ -113,6 +109,8 @@ class BluetoothAudioPort {
 
   virtual bool IsA2dp() const { return false; }
 
+  virtual bool IsLeAudio() const { return false; }
+
   virtual bool GetPreferredDataIntervalUs(size_t* interval_us) const {
     return false;
   };
@@ -146,14 +144,13 @@ class BluetoothAudioPortAidl : public BluetoothAudioPort {
   bool GetPresentationPosition(uint64_t* delay_ns, uint64_t* byte,
                                timespec* timestamp) const override;
 
-  void UpdateSourceMetadata(
-      const source_metadata* source_metadata) const override;
+  void UpdateSourceMetadata(const source_metadata_v7* source_metadata) const;
 
   /***
    * Called by the Audio framework / HAL when the metadata of the stream's
    * sink has been changed.
    ***/
-  virtual void UpdateSinkMetadata(const sink_metadata* sink_metadata) const;
+  virtual void UpdateSinkMetadata(const sink_metadata_v7* sink_metadata) const;
 
   BluetoothStreamState GetState() const override;
 
@@ -165,6 +162,20 @@ class BluetoothAudioPortAidl : public BluetoothAudioPort {
                SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH;
   }
 
+  bool IsLeAudio() const override {
+    return session_type_ == SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH ||
+           session_type_ == SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH ||
+           session_type_ ==
+               SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
+           session_type_ ==
+               SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH ||
+           session_type_ ==
+               SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH ||
+           session_type_ ==
+               SessionType::
+                   LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH;
+  }
+
   bool GetPreferredDataIntervalUs(size_t* interval_us) const override;
 
  protected:

bluetooth/audio/hw/device_port_proxy_hidl.cc

@@ -486,7 +486,7 @@ bool BluetoothAudioPortHidl::GetPresentationPosition(
   return retval;
 }
 
-void BluetoothAudioPortHidl::UpdateSourceMetadata(
+void BluetoothAudioPortHidl::UpdateTracksMetadata(
     const source_metadata* source_metadata) const {
   if (!in_use()) {
     LOG(ERROR) << __func__ << ": BluetoothAudioPort is not in use";

bluetooth/audio/hw/device_port_proxy_hidl.h

@@ -55,8 +55,7 @@ class BluetoothAudioPortHidl : public BluetoothAudioPort {
   bool GetPresentationPosition(uint64_t* delay_ns, uint64_t* bytes,
                                timespec* timestamp) const override;
 
-  void UpdateSourceMetadata(
-      const source_metadata* source_metadata) const override;
+  void UpdateTracksMetadata(const source_metadata* source_metadata) const;
 
   BluetoothStreamState GetState() const override;
 
@@ -69,6 +68,17 @@ class BluetoothAudioPortHidl : public BluetoothAudioPort {
                SessionType_2_1::A2DP_HARDWARE_OFFLOAD_DATAPATH;
   }
 
+  bool IsLeAudio() const override {
+    return session_type_hidl_ ==
+               SessionType_2_1::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH ||
+           session_type_hidl_ ==
+               SessionType_2_1::LE_AUDIO_SOFTWARE_DECODED_DATAPATH ||
+           session_type_hidl_ ==
+               SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
+           session_type_hidl_ ==
+               SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH;
+  }
+
   bool GetPreferredDataIntervalUs(size_t* interval_us) const override;
 
  protected:

bluetooth/audio/hw/stream_apis.cc

@@ -20,7 +20,6 @@
 #include <android-base/logging.h>
 #include <android-base/stringprintf.h>
 #include <cutils/properties.h>
-#include <errno.h>
 #include <inttypes.h>
 #include <log/log.h>
 #include <string.h>
@@ -34,6 +33,7 @@
 #include "utils.h"
 
 using ::android::base::StringPrintf;
+using ::android::bluetooth::audio::utils::FrameCount;
 using ::android::bluetooth::audio::utils::GetAudioParamString;
 using ::android::bluetooth::audio::utils::ParseAudioParams;
 
@@ -335,7 +335,7 @@ static int out_set_parameters(struct audio_stream* stream,
     }
   }
 
-  if (params.find("routing") != params.end()) {
+  if (params.find(AUDIO_PARAMETER_STREAM_ROUTING) != params.end()) {
     auto routing_param = params.find("routing");
     LOG(INFO) << __func__ << ": state=" << out->bluetooth_output_->GetState()
               << ", stream param '" << routing_param->first.c_str() << "="
@@ -365,8 +365,33 @@ static int out_set_parameters(struct audio_stream* stream,
     }
   }
 
-  if (params.find("closing") != params.end()) {
-    if (params["closing"] == "true") {
+  if (params.find("LeAudioSuspended") != params.end() &&
+      out->bluetooth_output_->IsLeAudio()) {
+    LOG(INFO) << __func__ << ": LeAudioSuspended found LEAudio="
+              << out->bluetooth_output_->IsLeAudio();
+    if (params["LeAudioSuspended"] == "true") {
+      LOG(INFO) << __func__ << ": LeAudioSuspended true, state="
+                << out->bluetooth_output_->GetState()
+                << " stream param standby";
+      if (out->bluetooth_output_->GetState() == BluetoothStreamState::STARTED) {
+        LOG(INFO) << __func__ << ": Stream is started, suspending LE Audio";
+      } else if (out->bluetooth_output_->GetState() !=
+                 BluetoothStreamState::DISABLED) {
+        LOG(INFO) << __func__ << ": Stream is disabled, suspending LE Audio";
+      }
+    } else {
+      LOG(INFO) << __func__ << ": LeAudioSuspended false, state="
+                << out->bluetooth_output_->GetState()
+                << " stream param standby";
+      if (out->bluetooth_output_->GetState() ==
+          BluetoothStreamState::DISABLED) {
+        LOG(INFO) << __func__ << ": Stream is disabled, unsuspending LE Audio";
+      }
+    }
+  }
+
+  if (params.find(AUDIO_PARAMETER_KEY_CLOSING) != params.end()) {
+    if (params[AUDIO_PARAMETER_KEY_CLOSING] == "true") {
       LOG(INFO) << __func__ << ": state=" << out->bluetooth_output_->GetState()
                 << " stream param closing, disallow any writes?";
       if (out->bluetooth_output_->GetState() !=
@@ -378,8 +403,8 @@ static int out_set_parameters(struct audio_stream* stream,
     }
   }
 
-  if (params.find("exiting") != params.end()) {
-    if (params["exiting"] == "1") {
+  if (params.find(AUDIO_PARAMETER_KEY_EXITING) != params.end()) {
+    if (params[AUDIO_PARAMETER_KEY_EXITING] == "1") {
       LOG(INFO) << __func__ << ": state=" << out->bluetooth_output_->GetState()
                 << " stream param exiting";
       if (out->bluetooth_output_->GetState() !=
@@ -678,21 +703,32 @@ static int out_get_presentation_position(const struct audio_stream_out* stream,
   return 0;
 }
 
-static void out_update_source_metadata(
+static void out_update_source_metadata_v7(
     struct audio_stream_out* stream,
-    const struct source_metadata* source_metadata) {
+    const struct source_metadata_v7* source_metadata_v7) {
   auto* out = reinterpret_cast<BluetoothStreamOut*>(stream);
   std::unique_lock<std::mutex> lock(out->mutex_);
-  if (source_metadata == nullptr || source_metadata->track_count == 0) {
+  if (source_metadata_v7 == nullptr || source_metadata_v7->track_count == 0) {
     return;
   }
   LOG(VERBOSE) << __func__ << ": state=" << out->bluetooth_output_->GetState()
-               << ", " << source_metadata->track_count << " track(s)";
-  out->bluetooth_output_->UpdateSourceMetadata(source_metadata);
-}
+               << ", " << source_metadata_v7->track_count << " track(s)";
+  if (!out->is_aidl) {
+    struct source_metadata source_metadata;
+    source_metadata.track_count = source_metadata_v7->track_count;
+    struct playback_track_metadata playback_track;
+    playback_track_metadata_from_v7(&playback_track,
+                                    source_metadata_v7->tracks);
+    source_metadata.tracks = &playback_track;
 
-static size_t frame_count(size_t microseconds, uint32_t sample_rate) {
-  return (microseconds * sample_rate) / 1000000;
+    static_cast<::android::bluetooth::audio::hidl::BluetoothAudioPortHidl*>(
+        out->bluetooth_output_.get())
+        ->UpdateTracksMetadata(&source_metadata);
+  } else {
+    static_cast<::android::bluetooth::audio::aidl::BluetoothAudioPortAidl*>(
+        out->bluetooth_output_.get())
+        ->UpdateSourceMetadata(source_metadata_v7);
+  }
 }
 
 int adev_open_output_stream(struct audio_hw_device* dev,
@@ -740,7 +776,10 @@ int adev_open_output_stream(struct audio_hw_device* dev,
   out->stream_out_.pause = out_pause;
   out->stream_out_.resume = out_resume;
   out->stream_out_.get_presentation_position = out_get_presentation_position;
-  out->stream_out_.update_source_metadata = out_update_source_metadata;
+  out->stream_out_.update_source_metadata_v7 = out_update_source_metadata_v7;
+  /** Fix Coverity Scan Issue @{ */
+  out->channel_mask_ = AUDIO_CHANNEL_NONE;
+  /** @} */
 
   if (!out->bluetooth_output_->LoadAudioConfig(config)) {
     LOG(ERROR) << __func__ << ": state=" << out->bluetooth_output_->GetState()
@@ -782,7 +821,7 @@ int adev_open_output_stream(struct audio_hw_device* dev,
   }
 
   out->frames_count_ =
-      frame_count(out->preferred_data_interval_us, out->sample_rate_);
+      FrameCount(out->preferred_data_interval_us, out->sample_rate_);
 
   out->frames_rendered_ = 0;
   out->frames_presented_ = 0;
@@ -1182,8 +1221,9 @@ static int in_set_microphone_field_dimension(
   return -ENOSYS;
 }
 
-static void in_update_sink_metadata(struct audio_stream_in* stream,
-                                    const struct sink_metadata* sink_metadata) {
+static void in_update_sink_metadata_v7(
+    struct audio_stream_in* stream,
+    const struct sink_metadata_v7* sink_metadata) {
   LOG(INFO) << __func__;
   if (sink_metadata == nullptr || sink_metadata->track_count == 0) {
     return;
@@ -1254,7 +1294,7 @@ int adev_open_input_stream(struct audio_hw_device* dev,
   in->stream_in_.set_microphone_direction = in_set_microphone_direction;
   in->stream_in_.set_microphone_field_dimension =
       in_set_microphone_field_dimension;
-  in->stream_in_.update_sink_metadata = in_update_sink_metadata;
+  in->stream_in_.update_sink_metadata_v7 = in_update_sink_metadata_v7;
 
   if (!in->bluetooth_input_->LoadAudioConfig(config)) {
     LOG(ERROR) << __func__ << ": state=" << in->bluetooth_input_->GetState()
@@ -1277,7 +1317,7 @@ int adev_open_input_stream(struct audio_hw_device* dev,
   }
 
   in->frames_count_ =
-      frame_count(in->preferred_data_interval_us, in->sample_rate_);
+      FrameCount(in->preferred_data_interval_us, in->sample_rate_);
   in->frames_presented_ = 0;
 
   BluetoothStreamIn* in_ptr = in.release();

bluetooth/audio/hw/stream_apis.h

@@ -81,6 +81,7 @@ struct BluetoothAudioDevice {
   std::mutex mutex_;
   std::list<BluetoothStreamOut*> opened_stream_outs_ =
       std::list<BluetoothStreamOut*>(0);
+  uint32_t next_unique_id = 1;
 };
 
 struct BluetoothStreamIn {

bluetooth/audio/hw/utils.cc

@@ -57,6 +57,10 @@ std::string GetAudioParamString(
   return sout.str();
 }
 
+size_t FrameCount(uint64_t microseconds, uint32_t sample_rate) {
+  return (microseconds * sample_rate) / 1000000;
+}
+
 }  // namespace utils
 }  // namespace audio
 }  // namespace bluetooth

bluetooth/audio/hw/utils.h

@@ -42,6 +42,7 @@ std::unordered_map<std::string, std::string> ParseAudioParams(
 std::string GetAudioParamString(
     std::unordered_map<std::string, std::string>& params_map);
 
+size_t FrameCount(uint64_t microseconds, uint32_t sample_rate);
 }  // namespace utils
 }  // namespace audio
 }  // namespace bluetooth

bluetooth/audio/hw/utils_unittest.cc

@@ -0,0 +1,142 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+#include <unordered_map>
+
+#include "utils.h"
+
+namespace {
+
+using ::android::bluetooth::audio::utils::FrameCount;
+using ::android::bluetooth::audio::utils::ParseAudioParams;
+
+class UtilsTest : public testing::Test {
+ protected:
+  void SetUp() override {}
+  void TearDown() override { map_.clear(); }
+
+  std::unordered_map<std::string, std::string> map_;
+};
+
+TEST_F(UtilsTest, HashMapEmptyParams) {
+  std::string params = "";
+  map_ = ParseAudioParams(params);
+  // map = {}
+  EXPECT_TRUE(map_.empty());
+}
+
+TEST_F(UtilsTest, HashMapDelimitOnly) {
+  std::string params = ";";
+  map_ = ParseAudioParams(params);
+  // map = {}
+  EXPECT_TRUE(map_.empty());
+}
+
+TEST_F(UtilsTest, HashMapNotKeyValuePair) {
+  std::string params = "key0";
+  map_ = ParseAudioParams(params);
+  // map = {[key0]=""}
+  EXPECT_EQ(map_.size(), 1);
+  EXPECT_NE(map_.find("key0"), map_.end());
+  EXPECT_EQ(map_["key0"].length(), 0);
+}
+
+TEST_F(UtilsTest, HashMapEmptyValue) {
+  std::string params = "key0=";
+  map_ = ParseAudioParams(params);
+  // map = {[key0]=""}
+  EXPECT_EQ(map_.size(), 1);
+  EXPECT_NE(map_.find("key0"), map_.end());
+  EXPECT_EQ(map_["key0"].length(), 0);
+}
+
+TEST_F(UtilsTest, HashMapEmptyValueWithDelimit) {
+  std::string params = "key0=;";
+  map_ = ParseAudioParams(params);
+  // map = {[key0]=""}
+  EXPECT_EQ(map_.size(), 1);
+  EXPECT_NE(map_.find("key0"), map_.end());
+  EXPECT_EQ(map_["key0"].length(), 0);
+}
+
+TEST_F(UtilsTest, HashMapOneKeyValuePair) {
+  std::string params = "key0=value0";
+  map_ = ParseAudioParams(params);
+  // map = {[key0]="value0"}
+  EXPECT_EQ(map_.size(), 1);
+  EXPECT_EQ(map_["key0"], "value0");
+}
+
+TEST_F(UtilsTest, HashMapOneKeyValuePairWithDelimit) {
+  std::string params = "key0=value0;";
+  map_ = ParseAudioParams(params);
+  // map = {[key0]="value0"}
+  EXPECT_EQ(map_.size(), 1);
+  EXPECT_EQ(map_["key0"], "value0");
+}
+
+TEST_F(UtilsTest, HashMapTwoKeyValuePairs) {
+  std::string params = "key0=value0;key1=value1";
+  map_ = ParseAudioParams(params);
+  // map = {[key0]="value0", [key1]="value1"}
+  EXPECT_EQ(map_.size(), 2);
+  EXPECT_EQ(map_["key0"], "value0");
+  EXPECT_EQ(map_["key1"], "value1");
+}
+
+TEST_F(UtilsTest, HashMapEmptyKey) {
+  std::string params = "=value";
+  map_ = ParseAudioParams(params);
+  // map = {}
+  EXPECT_TRUE(map_.empty());
+}
+
+TEST_F(UtilsTest, HashMapEmptyKeyWithDelimit) {
+  std::string params = "=value;";
+  map_ = ParseAudioParams(params);
+  // map = {}
+  EXPECT_TRUE(map_.empty());
+}
+
+TEST_F(UtilsTest, HashMapEquivalentOnly) {
+  std::string params = "=";
+  map_ = ParseAudioParams(params);
+  // map = {}
+  EXPECT_TRUE(map_.empty());
+}
+
+TEST_F(UtilsTest, HashMapNoKeyValuePair) {
+  std::string params = "=;";
+  map_ = ParseAudioParams(params);
+  // map = {}
+  EXPECT_TRUE(map_.empty());
+}
+
+TEST_F(UtilsTest, HashMapTwoPairsWithFirstKeyEmpty) {
+  std::string params = "=value0;key1=value1";
+  map_ = ParseAudioParams(params);
+  // map = {[key1]="value1"}
+  EXPECT_EQ(map_.size(), 1);
+  EXPECT_EQ(map_["key1"], "value1");
+}
+
+TEST_F(UtilsTest, FrameCountTest) {
+  EXPECT_EQ(FrameCount(120000, 44100), 5292);
+  EXPECT_EQ(FrameCount(7500, 32000), 240);
+}
+
+}  // namespace

bluetooth/audio/utils/Android.bp

@@ -29,9 +29,22 @@ cc_library_shared {
         "aidl_session/BluetoothAudioCodecs.cpp",
         "aidl_session/BluetoothAudioSession.cpp",
         "aidl_session/HidlToAidlMiddleware.cpp",
+        "aidl_session/BluetoothLeAudioCodecsProvider.cpp",
+        "aidl_session/BluetoothLeAudioAseConfigurationSettingProvider.cpp",
     ],
     export_include_dirs: ["aidl_session/"],
-    header_libs: ["libhardware_headers"],
+    header_libs: [
+        "libhardware_headers",
+        "libxsdc-utils",
+    ],
+    generated_sources: ["le_audio_codec_capabilities_system"],
+    generated_headers: [
+        "le_audio_codec_capabilities_system",
+        "AIDLLeAudioSetConfigSchemas_h_system",
+    ],
+    defaults: [
+        "latest_android_hardware_bluetooth_audio_ndk_shared",
+    ],
     shared_libs: [
         "android.hardware.bluetooth.audio@2.0",
         "android.hardware.bluetooth.audio@2.1",
@@ -40,7 +53,83 @@ cc_library_shared {
         "libbinder_ndk",
         "libfmq",
         "liblog",
-        "android.hardware.bluetooth.audio-V3-ndk",
         "libhidlbase",
+        "libxml2",
+        "libflatbuffers-cpp",
     ],
 }
+
+xsd_config {
+    name: "le_audio_codec_capabilities_system",
+    srcs: ["le_audio_codec_capabilities/le_audio_codec_capabilities.xsd"],
+    package_name: "aidl.android.hardware.bluetooth.audio.setting",
+    api_dir: "le_audio_codec_capabilities/schema",
+    root_elements: ["leAudioOffloadSetting"],
+}
+genrule {
+    name: "AIDLLeAudioSetConfigSchemas_h_system",
+    tools: [
+        "flatc",
+    ],
+    cmd: "$(location flatc) -I hardware/interfaces/bluetooth/audio/utils/ -o $(genDir) --cpp $(in) ",
+    srcs: [
+        "le_audio_configuration_set/audio_set_configurations.fbs",
+        "le_audio_configuration_set/audio_set_scenarios.fbs",
+    ],
+    out: [
+        "audio_set_configurations_generated.h",
+        "audio_set_scenarios_generated.h",
+    ],
+}
+// Binary generation
+genrule {
+    name: "AIDLLeAudioSetScenariosSchema_bfbs_system",
+    tools: [
+        "flatc",
+    ],
+    cmd: "$(location flatc) -I device/peter/gsi/bluetooth/audio/utils/ -b --schema -o $(genDir) $(in) ",
+    srcs: [
+        "le_audio_configuration_set/audio_set_scenarios.fbs",
+    ],
+    out: [
+        "audio_set_scenarios.bfbs",
+    ],
+}
+genrule {
+    name: "AIDLLeAudioSetConfigsSchema_bfbs_system",
+    tools: [
+        "flatc",
+    ],
+    cmd: "$(location flatc) -I device/peter/gsi/bluetooth/audio/utils/ -b --schema -o $(genDir) $(in) ",
+    srcs: [
+        "le_audio_configuration_set/audio_set_configurations.fbs",
+    ],
+    out: [
+        "audio_set_configurations.bfbs",
+    ],
+}
+// Add to prebuilt etc
+prebuilt_etc {
+    name: "aidl_audio_set_scenarios_bfbs_system",
+    src: ":AIDLLeAudioSetScenariosSchema_bfbs_system",
+    filename: "aidl_audio_set_scenarios.bfbs",
+    sub_dir: "aidl/le_audio",
+}
+prebuilt_etc {
+    name: "aidl_audio_set_scenarios_json_system",
+    src: "le_audio_configuration_set/audio_set_scenarios.json",
+    filename: "aidl_audio_set_scenarios.json",
+    sub_dir: "aidl/le_audio",
+}
+prebuilt_etc {
+    name: "aidl_audio_set_configurations_bfbs_system",
+    src: ":AIDLLeAudioSetConfigsSchema_bfbs",
+    filename: "aidl_audio_set_configurations.bfbs",
+    sub_dir: "aidl/le_audio",
+}
+prebuilt_etc {
+    name: "aidl_audio_set_configurations_json_system",
+    src: "le_audio_configuration_set/audio_set_configurations.json",
+    filename: "aidl_audio_set_configurations.json",
+    sub_dir: "aidl/le_audio",
+}

bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp

@@ -32,6 +32,9 @@
 #include <aidl/android/hardware/bluetooth/audio/SbcChannelMode.h>
 #include <android-base/logging.h>
 
+#include "BluetoothLeAudioAseConfigurationSettingProvider.h"
+#include "BluetoothLeAudioCodecsProvider.h"
+
 namespace aidl {
 namespace android {
 namespace hardware {
@@ -39,7 +42,7 @@ namespace bluetooth {
 namespace audio {
 
 static const PcmCapabilities kDefaultSoftwarePcmCapabilities = {
-    .sampleRateHz = {16000, 24000, 32000, 44100, 48000, 88200, 96000},
+    .sampleRateHz = {8000, 16000, 24000, 32000, 44100, 48000, 88200, 96000},
     .channelMode = {ChannelMode::MONO, ChannelMode::STEREO},
     .bitsPerSample = {16, 24, 32},
     .dataIntervalUs = {},
@@ -95,67 +98,8 @@ const std::vector<CodecCapabilities> kDefaultOffloadA2dpCodecCapabilities = {
     {.codecType = CodecType::OPUS, .capabilities = {}}};
 
 std::vector<LeAudioCodecCapabilitiesSetting> kDefaultOffloadLeAudioCapabilities;
-
-static const UnicastCapability kInvalidUnicastCapability = {
-    .codecType = CodecType::UNKNOWN};
-
-static const BroadcastCapability kInvalidBroadcastCapability = {
-    .codecType = CodecType::UNKNOWN};
-
-// Default Supported Codecs
-// LC3 16_1: sample rate: 16 kHz, frame duration: 7.5 ms, octets per frame: 30
-static const Lc3Capabilities kLc3Capability_16_1 = {
-    .samplingFrequencyHz = {16000},
-    .frameDurationUs = {7500},
-    .octetsPerFrame = {30}};
-
-// Default Supported Codecs
-// LC3 16_2: sample rate: 16 kHz, frame duration: 10 ms, octets per frame: 40
-static const Lc3Capabilities kLc3Capability_16_2 = {
-    .samplingFrequencyHz = {16000},
-    .frameDurationUs = {10000},
-    .octetsPerFrame = {40}};
-
-// Default Supported Codecs
-// LC3 24_2: sample rate: 24 kHz, frame duration: 10 ms, octets per frame: 60
-static const Lc3Capabilities kLc3Capability_24_2 = {
-    .samplingFrequencyHz = {24000},
-    .frameDurationUs = {10000},
-    .octetsPerFrame = {60}};
-
-// Default Supported Codecs
-// LC3 32_2: sample rate: 32 kHz, frame duration: 10 ms, octets per frame: 80
-static const Lc3Capabilities kLc3Capability_32_2 = {
-    .samplingFrequencyHz = {32000},
-    .frameDurationUs = {10000},
-    .octetsPerFrame = {80}};
-
-// Default Supported Codecs
-// LC3 48_4: sample rate: 48 kHz, frame duration: 10 ms, octets per frame: 120
-static const Lc3Capabilities kLc3Capability_48_4 = {
-    .samplingFrequencyHz = {48000},
-    .frameDurationUs = {10000},
-    .octetsPerFrame = {120}};
-
-static const std::vector<Lc3Capabilities> supportedLc3CapabilityList = {
-    kLc3Capability_48_4, kLc3Capability_32_2, kLc3Capability_24_2,
-    kLc3Capability_16_2, kLc3Capability_16_1};
-
-static AudioLocation stereoAudio = static_cast<AudioLocation>(
-    static_cast<uint8_t>(AudioLocation::FRONT_LEFT) |
-    static_cast<uint8_t>(AudioLocation::FRONT_RIGHT));
-static AudioLocation monoAudio = AudioLocation::UNKNOWN;
-
-// Stores the supported setting of audio location, connected device, and the
-// channel count for each device
-std::vector<std::tuple<AudioLocation, uint8_t, uint8_t>>
-    supportedDeviceSetting = {
-        // Stereo, two connected device, one for L one for R
-        std::make_tuple(stereoAudio, 2, 1),
-        // Stereo, one connected device for both L and R
-        std::make_tuple(stereoAudio, 1, 2),
-        // Mono
-        std::make_tuple(monoAudio, 1, 1)};
+std::unordered_map<SessionType, std::vector<CodecInfo>>
+    kDefaultOffloadLeAudioCodecInfoMap;
 
 template <class T>
 bool BluetoothAudioCodecs::ContainedInVector(
@@ -321,19 +265,6 @@ bool BluetoothAudioCodecs::IsOffloadOpusConfigurationValid(
   return false;
 }
 
-bool BluetoothAudioCodecs::IsOffloadLeAudioConfigurationValid(
-    const SessionType& session_type, const LeAudioConfiguration&) {
-  if (session_type !=
-          SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type !=
-          SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH &&
-      session_type !=
-          SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {
-    return false;
-  }
-  return true;
-}
-
 std::vector<PcmCapabilities>
 BluetoothAudioCodecs::GetSoftwarePcmCapabilities() {
   return {kDefaultSoftwarePcmCapabilities};
@@ -384,6 +315,8 @@ BluetoothAudioCodecs::GetA2dpOffloadCodecCapabilities(
       case CodecType::VENDOR:
       case CodecType::LC3:
       case CodecType::APTX_ADAPTIVE:
+      case CodecType::APTX_ADAPTIVE_LE:
+      case CodecType::APTX_ADAPTIVE_LEX:
         break;
     }
   }
@@ -449,6 +382,8 @@ bool BluetoothAudioCodecs::IsOffloadCodecConfigurationValid(
       }
       break;
     case CodecType::APTX_ADAPTIVE:
+    case CodecType::APTX_ADAPTIVE_LE:
+    case CodecType::APTX_ADAPTIVE_LEX:
     case CodecType::LC3:
     case CodecType::UNKNOWN:
     case CodecType::VENDOR:
@@ -457,19 +392,6 @@ bool BluetoothAudioCodecs::IsOffloadCodecConfigurationValid(
   return false;
 }
 
-UnicastCapability composeUnicastLc3Capability(
-    AudioLocation audioLocation, uint8_t deviceCnt, uint8_t channelCount,
-    const Lc3Capabilities& capability) {
-  return {
-      .codecType = CodecType::LC3,
-      .supportedChannel = audioLocation,
-      .deviceCount = deviceCnt,
-      .channelCountPerDevice = channelCount,
-      .leAudioCodecCapabilities =
-          UnicastCapability::LeAudioCodecCapabilities(capability),
-  };
-}
-
 std::vector<LeAudioCodecCapabilitiesSetting>
 BluetoothAudioCodecs::GetLeAudioOffloadCodecCapabilities(
     const SessionType& session_type) {
@@ -483,37 +405,44 @@ BluetoothAudioCodecs::GetLeAudioOffloadCodecCapabilities(
   }
 
   if (kDefaultOffloadLeAudioCapabilities.empty()) {
-    for (auto [audioLocation, deviceCnt, channelCount] :
-         supportedDeviceSetting) {
-      for (auto capability : supportedLc3CapabilityList) {
-        UnicastCapability lc3Capability = composeUnicastLc3Capability(
-            audioLocation, deviceCnt, channelCount, capability);
-        UnicastCapability lc3MonoDecodeCapability =
-            composeUnicastLc3Capability(monoAudio, 1, 1, capability);
+    auto le_audio_offload_setting =
+        BluetoothLeAudioCodecsProvider::ParseFromLeAudioOffloadSettingFile();
+    kDefaultOffloadLeAudioCapabilities =
+        BluetoothLeAudioCodecsProvider::GetLeAudioCodecCapabilities(
+            le_audio_offload_setting);
+  }
+  return kDefaultOffloadLeAudioCapabilities;
+}
 
-        // Adds the capability for encode only
-        kDefaultOffloadLeAudioCapabilities.push_back(
-            {.unicastEncodeCapability = lc3Capability,
-             .unicastDecodeCapability = kInvalidUnicastCapability,
-             .broadcastCapability = kInvalidBroadcastCapability});
-
-        // Adds the capability for decode only
-        kDefaultOffloadLeAudioCapabilities.push_back(
-            {.unicastEncodeCapability = kInvalidUnicastCapability,
-             .unicastDecodeCapability = lc3Capability,
-             .broadcastCapability = kInvalidBroadcastCapability});
-
-        // Adds the capability for the case that encode and decode exist at the
-        // same time
-        kDefaultOffloadLeAudioCapabilities.push_back(
-            {.unicastEncodeCapability = lc3Capability,
-             .unicastDecodeCapability = lc3MonoDecodeCapability,
-             .broadcastCapability = kInvalidBroadcastCapability});
-      }
-    }
+std::vector<CodecInfo> BluetoothAudioCodecs::GetLeAudioOffloadCodecInfo(
+    const SessionType& session_type) {
+  if (session_type !=
+          SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
+      session_type !=
+          SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH &&
+      session_type !=
+          SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {
+    return std::vector<CodecInfo>();
   }
 
-  return kDefaultOffloadLeAudioCapabilities;
+  if (kDefaultOffloadLeAudioCodecInfoMap.empty()) {
+    auto le_audio_offload_setting =
+        BluetoothLeAudioCodecsProvider::ParseFromLeAudioOffloadSettingFile();
+    auto kDefaultOffloadLeAudioCodecInfoMap =
+        BluetoothLeAudioCodecsProvider::GetLeAudioCodecInfo(
+            le_audio_offload_setting);
+  }
+  auto codec_info_map_iter =
+      kDefaultOffloadLeAudioCodecInfoMap.find(session_type);
+  if (codec_info_map_iter == kDefaultOffloadLeAudioCodecInfoMap.end())
+    return std::vector<CodecInfo>();
+  return codec_info_map_iter->second;
+}
+
+std::vector<LeAudioAseConfigurationSetting>
+BluetoothAudioCodecs::GetLeAudioAseConfigurationSettings() {
+  return AudioSetConfigurationProviderJson::
+      GetLeAudioAseConfigurationSettings();
 }
 
 }  // namespace audio

bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.h

@@ -18,6 +18,8 @@
 
 #include <aidl/android/hardware/bluetooth/audio/CodecCapabilities.h>
 #include <aidl/android/hardware/bluetooth/audio/CodecConfiguration.h>
+#include <aidl/android/hardware/bluetooth/audio/CodecInfo.h>
+#include <aidl/android/hardware/bluetooth/audio/IBluetoothAudioProvider.h>
 #include <aidl/android/hardware/bluetooth/audio/LeAudioCodecCapabilitiesSetting.h>
 #include <aidl/android/hardware/bluetooth/audio/LeAudioConfiguration.h>
 #include <aidl/android/hardware/bluetooth/audio/OpusConfiguration.h>
@@ -33,6 +35,9 @@ namespace hardware {
 namespace bluetooth {
 namespace audio {
 
+using LeAudioAseConfigurationSetting =
+    IBluetoothAudioProvider::LeAudioAseConfigurationSetting;
+
 class BluetoothAudioCodecs {
  public:
   static std::vector<PcmCapabilities> GetSoftwarePcmCapabilities();
@@ -44,11 +49,13 @@ class BluetoothAudioCodecs {
   static bool IsOffloadCodecConfigurationValid(
       const SessionType& session_type, const CodecConfiguration& codec_config);
 
-  static bool IsOffloadLeAudioConfigurationValid(
-      const SessionType& session_type, const LeAudioConfiguration&);
-
   static std::vector<LeAudioCodecCapabilitiesSetting>
   GetLeAudioOffloadCodecCapabilities(const SessionType& session_type);
+  static std::vector<CodecInfo> GetLeAudioOffloadCodecInfo(
+      const SessionType& session_type);
+
+  static std::vector<LeAudioAseConfigurationSetting>
+  GetLeAudioAseConfigurationSettings();
 
  private:
   template <typename T>

bluetooth/audio/utils/aidl_session/BluetoothAudioSession.cpp

@@ -20,6 +20,7 @@
 #include <android-base/logging.h>
 #include <android-base/stringprintf.h>
 #include <android/binder_manager.h>
+#include <hardware/audio.h>
 
 #include "BluetoothAudioSession.h"
 
@@ -94,6 +95,8 @@ const AudioConfiguration BluetoothAudioSession::GetAudioConfig() {
       case SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
       case SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH:
         return AudioConfiguration(CodecConfiguration{});
+      case SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH:
+        return AudioConfiguration(HfpConfiguration{});
       case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
       case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH:
         return AudioConfiguration(LeAudioConfiguration{});
@@ -114,8 +117,16 @@ void BluetoothAudioSession::ReportAudioConfigChanged(
           SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
     return;
   }
+
   std::lock_guard<std::recursive_mutex> guard(mutex_);
+  if (audio_config.getTag() != AudioConfiguration::leAudioConfig) {
+    LOG(ERROR) << __func__ << " invalid audio config type for SessionType ="
+               << toString(session_type_);
+    return;
+  }
+
   audio_config_ = std::make_unique<AudioConfiguration>(audio_config);
+
   if (observers_.empty()) {
     LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_)
                  << " has NO port state observer";
@@ -145,6 +156,7 @@ bool BluetoothAudioSession::IsSessionReady() {
        session_type_ ==
            SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
        session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH ||
+       session_type_ == SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH ||
        (data_mq_ != nullptr && data_mq_->isValid()));
   return stack_iface_ != nullptr && is_mq_valid && audio_config_ != nullptr;
 }
@@ -266,6 +278,8 @@ bool BluetoothAudioSession::UpdateAudioConfig(
   bool is_software_session =
       (session_type_ == SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH ||
        session_type_ == SessionType::HEARING_AID_SOFTWARE_ENCODING_DATAPATH ||
+       session_type_ == SessionType::HFP_SOFTWARE_ENCODING_DATAPATH ||
+       session_type_ == SessionType::HFP_SOFTWARE_DECODING_DATAPATH ||
        session_type_ == SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH ||
        session_type_ == SessionType::LE_AUDIO_SOFTWARE_ENCODING_DATAPATH ||
        session_type_ ==
@@ -274,23 +288,37 @@ bool BluetoothAudioSession::UpdateAudioConfig(
   bool is_offload_a2dp_session =
       (session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
        session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH);
-  bool is_offload_le_audio_session =
+  bool is_offload_hfp_session =
+      session_type_ == SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH;
+  bool is_offload_le_audio_unicast_session =
       (session_type_ ==
            SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
        session_type_ ==
            SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH);
+  bool is_offload_le_audio_broadcast_session =
+      (session_type_ ==
+       SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH);
   auto audio_config_tag = audio_config.getTag();
   bool is_software_audio_config =
       (is_software_session &&
        audio_config_tag == AudioConfiguration::pcmConfig);
   bool is_a2dp_offload_audio_config =
       (is_offload_a2dp_session &&
-       audio_config_tag == AudioConfiguration::a2dpConfig);
-  bool is_le_audio_offload_audio_config =
-      (is_offload_le_audio_session &&
+       (audio_config_tag == AudioConfiguration::a2dp ||
+        audio_config_tag == AudioConfiguration::a2dpConfig));
+  bool is_hfp_offload_audio_config =
+      (is_offload_hfp_session &&
+       audio_config_tag == AudioConfiguration::hfpConfig);
+  bool is_le_audio_offload_unicast_audio_config =
+      (is_offload_le_audio_unicast_session &&
        audio_config_tag == AudioConfiguration::leAudioConfig);
+  bool is_le_audio_offload_broadcast_audio_config =
+      (is_offload_le_audio_broadcast_session &&
+       audio_config_tag == AudioConfiguration::leAudioBroadcastConfig);
   if (!is_software_audio_config && !is_a2dp_offload_audio_config &&
-      !is_le_audio_offload_audio_config) {
+      !is_hfp_offload_audio_config &&
+      !is_le_audio_offload_unicast_audio_config &&
+      !is_le_audio_offload_broadcast_audio_config) {
     return false;
   }
   audio_config_ = std::make_unique<AudioConfiguration>(audio_config);
@@ -423,8 +451,21 @@ void BluetoothAudioSession::ReportControlStatus(bool start_resp,
 }
 
 void BluetoothAudioSession::ReportLowLatencyModeAllowedChanged(bool allowed) {
+  if (session_type_ != SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {
+    return;
+  }
   std::lock_guard<std::recursive_mutex> guard(mutex_);
   low_latency_allowed_ = allowed;
+  // TODO(b/294498919): Remove this after there is API to update latency mode
+  // after audio session started. If low_latency_allowed_ is true, the session
+  // can support LOW_LATENCY and FREE LatencyMode.
+  if (low_latency_allowed_) {
+    if (std::find(latency_modes_.begin(), latency_modes_.end(),
+                  LatencyMode::LOW_LATENCY) == latency_modes_.end()) {
+      LOG(INFO) << __func__ << " - insert LOW_LATENCY LatencyMode";
+      latency_modes_.push_back(LatencyMode::LOW_LATENCY);
+    }
+  }
   if (observers_.empty()) {
     LOG(WARNING) << __func__ << " - SessionType=" << toString(session_type_)
                  << " has NO port state observer";
@@ -461,23 +502,9 @@ bool BluetoothAudioSession::GetPresentationPosition(
 
 void BluetoothAudioSession::UpdateSourceMetadata(
     const struct source_metadata& source_metadata) {
-  std::lock_guard<std::recursive_mutex> guard(mutex_);
-  if (!IsSessionReady()) {
-    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_)
-               << " has NO session";
-    return;
-  }
-
   ssize_t track_count = source_metadata.track_count;
   LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_) << ","
             << track_count << " track(s)";
-  if (session_type_ == SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH ||
-      session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
-      session_type_ == SessionType::A2DP_SOFTWARE_DECODING_DATAPATH ||
-      session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    return;
-  }
-
   SourceMetadata hal_source_metadata;
   hal_source_metadata.tracks.resize(track_count);
   for (int i = 0; i < track_count; i++) {
@@ -494,33 +521,14 @@ void BluetoothAudioSession::UpdateSourceMetadata(
                  << toString(hal_source_metadata.tracks[i].contentType)
                  << ", gain=" << hal_source_metadata.tracks[i].gain;
   }
-
-  auto hal_retval = stack_iface_->updateSourceMetadata(hal_source_metadata);
-  if (!hal_retval.isOk()) {
-    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
-                 << toString(session_type_) << " failed";
-  }
+  UpdateSourceMetadata(hal_source_metadata);
 }
 
 void BluetoothAudioSession::UpdateSinkMetadata(
     const struct sink_metadata& sink_metadata) {
-  std::lock_guard<std::recursive_mutex> guard(mutex_);
-  if (!IsSessionReady()) {
-    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_)
-               << " has NO session";
-    return;
-  }
-
   ssize_t track_count = sink_metadata.track_count;
   LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_) << ","
             << track_count << " track(s)";
-  if (session_type_ == SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH ||
-      session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
-      session_type_ == SessionType::A2DP_SOFTWARE_DECODING_DATAPATH ||
-      session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
-    return;
-  }
-
   SinkMetadata hal_sink_metadata;
   hal_sink_metadata.tracks.resize(track_count);
   for (int i = 0; i < track_count; i++) {
@@ -535,12 +543,57 @@ void BluetoothAudioSession::UpdateSinkMetadata(
               << ", dest_device_address="
               << sink_metadata.tracks[i].dest_device_address;
   }
+  UpdateSinkMetadata(hal_sink_metadata);
+}
+
+bool BluetoothAudioSession::UpdateSourceMetadata(
+    const SourceMetadata& hal_source_metadata) {
+  std::lock_guard<std::recursive_mutex> guard(mutex_);
+  if (!IsSessionReady()) {
+    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_)
+               << " has NO session";
+    return false;
+  }
+
+  if (session_type_ == SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH ||
+      session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
+      session_type_ == SessionType::A2DP_SOFTWARE_DECODING_DATAPATH ||
+      session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
+    return false;
+  }
+
+  auto hal_retval = stack_iface_->updateSourceMetadata(hal_source_metadata);
+  if (!hal_retval.isOk()) {
+    LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
+                 << toString(session_type_) << " failed";
+    return false;
+  }
+  return true;
+}
+
+bool BluetoothAudioSession::UpdateSinkMetadata(
+    const SinkMetadata& hal_sink_metadata) {
+  std::lock_guard<std::recursive_mutex> guard(mutex_);
+  if (!IsSessionReady()) {
+    LOG(DEBUG) << __func__ << " - SessionType=" << toString(session_type_)
+               << " has NO session";
+    return false;
+  }
+
+  if (session_type_ == SessionType::A2DP_SOFTWARE_ENCODING_DATAPATH ||
+      session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
+      session_type_ == SessionType::A2DP_SOFTWARE_DECODING_DATAPATH ||
+      session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
+    return false;
+  }
 
   auto hal_retval = stack_iface_->updateSinkMetadata(hal_sink_metadata);
   if (!hal_retval.isOk()) {
     LOG(WARNING) << __func__ << " - IBluetoothAudioPort SessionType="
                  << toString(session_type_) << " failed";
+    return false;
   }
+  return true;
 }
 
 std::vector<LatencyMode> BluetoothAudioSession::GetSupportedLatencyModes() {
@@ -550,15 +603,32 @@ std::vector<LatencyMode> BluetoothAudioSession::GetSupportedLatencyModes() {
                << " has NO session";
     return std::vector<LatencyMode>();
   }
-  if (low_latency_allowed_) return latency_modes_;
-  std::vector<LatencyMode> modes;
-  for (LatencyMode mode : latency_modes_) {
-    if (mode == LatencyMode::LOW_LATENCY)
-      // ignore those low latency mode if Bluetooth stack doesn't allow
-      continue;
-    modes.push_back(mode);
+
+  std::vector<LatencyMode> supported_latency_modes;
+  if (session_type_ ==
+      SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {
+    for (LatencyMode mode : latency_modes_) {
+      if (mode == LatencyMode::LOW_LATENCY) {
+        // LOW_LATENCY is not supported for LE_HARDWARE_OFFLOAD_ENC sessions
+        continue;
+      }
+      supported_latency_modes.push_back(mode);
+    }
+  } else {
+    for (LatencyMode mode : latency_modes_) {
+      if (!low_latency_allowed_ && mode == LatencyMode::LOW_LATENCY) {
+        // ignore LOW_LATENCY mode if Bluetooth stack doesn't allow
+        continue;
+      }
+      if (mode == LatencyMode::DYNAMIC_SPATIAL_AUDIO_SOFTWARE ||
+          mode == LatencyMode::DYNAMIC_SPATIAL_AUDIO_HARDWARE) {
+        // DSA_SW and DSA_HW only supported for LE_HARDWARE_OFFLOAD_ENC sessions
+        continue;
+      }
+      supported_latency_modes.push_back(mode);
+    }
   }
-  return modes;
+  return supported_latency_modes;
 }
 
 void BluetoothAudioSession::SetLatencyMode(const LatencyMode& latency_mode) {

bluetooth/audio/utils/aidl_session/BluetoothAudioSession.h

@@ -23,12 +23,15 @@
 #include <aidl/android/hardware/bluetooth/audio/LatencyMode.h>
 #include <aidl/android/hardware/bluetooth/audio/SessionType.h>
 #include <fmq/AidlMessageQueue.h>
-#include <hardware/audio.h>
 
 #include <mutex>
 #include <unordered_map>
 #include <vector>
 
+// To avoid inclusion of hardware/audio.h
+struct sink_metadata;
+struct source_metadata;
+
 namespace aidl {
 namespace android {
 namespace hardware {
@@ -183,6 +186,9 @@ class BluetoothAudioSession {
   bool GetPresentationPosition(PresentationPosition& presentation_position);
   void UpdateSourceMetadata(const struct source_metadata& source_metadata);
   void UpdateSinkMetadata(const struct sink_metadata& sink_metadata);
+  // New versions for AIDL-only clients.
+  bool UpdateSourceMetadata(const SourceMetadata& hal_source_metadata);
+  bool UpdateSinkMetadata(const SinkMetadata& hal_sink_metadata);
 
   std::vector<LatencyMode> GetSupportedLatencyModes();
   void SetLatencyMode(const LatencyMode& latency_mode);
@@ -220,8 +226,10 @@ class BluetoothAudioSession {
 
   static inline std::atomic<bool> is_aidl_checked = false;
   static inline std::atomic<bool> is_aidl_available = false;
+  // BEGIN sysbta
   static inline const std::string kDefaultAudioProviderFactoryInterface =
       std::string() + IBluetoothAudioProviderFactory::descriptor + "/sysbta";
+  // END sysbta
 };
 
 class BluetoothAudioSessionInstance {

bluetooth/audio/utils/aidl_session/BluetoothAudioSessionControl.h

@@ -84,6 +84,8 @@ class BluetoothAudioSessionControl {
       case SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
       case SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH:
         return AudioConfiguration(CodecConfiguration{});
+      case SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH:
+        return AudioConfiguration(HfpConfiguration{});
       case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
       case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH:
         return AudioConfiguration(LeAudioConfiguration{});
@@ -156,6 +158,26 @@ class BluetoothAudioSessionControl {
     }
   }
 
+  static bool UpdateSourceMetadata(const SessionType& session_type,
+                                   const SourceMetadata& source_metadata) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      return session_ptr->UpdateSourceMetadata(source_metadata);
+    }
+    return false;
+  }
+
+  static bool UpdateSinkMetadata(const SessionType& session_type,
+                                 const SinkMetadata& sink_metadata) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      return session_ptr->UpdateSinkMetadata(sink_metadata);
+    }
+    return false;
+  }
+
   static std::vector<LatencyMode> GetSupportedLatencyModes(
       const SessionType& session_type) {
     std::shared_ptr<BluetoothAudioSession> session_ptr =

bluetooth/audio/utils/aidl_session/BluetoothLeAudioAseConfigurationSettingProvider.cpp

@@ -0,0 +1,760 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define STREAM_TO_UINT8(u8, p) \
+  {                            \
+    (u8) = (uint8_t)(*(p));    \
+    (p) += 1;                  \
+  }
+#define STREAM_TO_UINT16(u16, p)                                  \
+  {                                                               \
+    (u16) = ((uint16_t)(*(p)) + (((uint16_t)(*((p) + 1))) << 8)); \
+    (p) += 2;                                                     \
+  }
+#define STREAM_TO_UINT32(u32, p)                                      \
+  {                                                                   \
+    (u32) = (((uint32_t)(*(p))) + ((((uint32_t)(*((p) + 1)))) << 8) + \
+             ((((uint32_t)(*((p) + 2)))) << 16) +                     \
+             ((((uint32_t)(*((p) + 3)))) << 24));                     \
+    (p) += 4;                                                         \
+  }
+
+#define LOG_TAG "BTAudioAseConfigAidl"
+
+#include "BluetoothLeAudioAseConfigurationSettingProvider.h"
+
+#include <aidl/android/hardware/bluetooth/audio/AudioConfiguration.h>
+#include <aidl/android/hardware/bluetooth/audio/AudioContext.h>
+#include <aidl/android/hardware/bluetooth/audio/BluetoothAudioStatus.h>
+#include <aidl/android/hardware/bluetooth/audio/CodecId.h>
+#include <aidl/android/hardware/bluetooth/audio/CodecSpecificCapabilitiesLtv.h>
+#include <aidl/android/hardware/bluetooth/audio/CodecSpecificConfigurationLtv.h>
+#include <aidl/android/hardware/bluetooth/audio/ConfigurationFlags.h>
+#include <aidl/android/hardware/bluetooth/audio/LeAudioAseConfiguration.h>
+#include <aidl/android/hardware/bluetooth/audio/Phy.h>
+#include <android-base/logging.h>
+
+#include "flatbuffers/idl.h"
+#include "flatbuffers/util.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace audio {
+
+/* Internal structure definition */
+std::map<std::string,
+         std::tuple<std::vector<std::optional<AseDirectionConfiguration>>,
+                    std::vector<std::optional<AseDirectionConfiguration>>,
+                    ConfigurationFlags>>
+    configurations_;
+
+std::vector<LeAudioAseConfigurationSetting> ase_configuration_settings_;
+
+constexpr uint8_t kIsoDataPathHci = 0x00;
+constexpr uint8_t kIsoDataPathPlatformDefault = 0x01;
+constexpr uint8_t kIsoDataPathDisabled = 0xFF;
+
+constexpr uint8_t kLeAudioDirectionSink = 0x01;
+constexpr uint8_t kLeAudioDirectionSource = 0x02;
+constexpr uint8_t kLeAudioDirectionBoth =
+    kLeAudioDirectionSink | kLeAudioDirectionSource;
+
+/* Sampling Frequencies */
+constexpr uint8_t kLeAudioSamplingFreq8000Hz = 0x01;
+constexpr uint8_t kLeAudioSamplingFreq11025Hz = 0x02;
+constexpr uint8_t kLeAudioSamplingFreq16000Hz = 0x03;
+constexpr uint8_t kLeAudioSamplingFreq22050Hz = 0x04;
+constexpr uint8_t kLeAudioSamplingFreq24000Hz = 0x05;
+constexpr uint8_t kLeAudioSamplingFreq32000Hz = 0x06;
+constexpr uint8_t kLeAudioSamplingFreq44100Hz = 0x07;
+constexpr uint8_t kLeAudioSamplingFreq48000Hz = 0x08;
+constexpr uint8_t kLeAudioSamplingFreq88200Hz = 0x09;
+constexpr uint8_t kLeAudioSamplingFreq96000Hz = 0x0A;
+constexpr uint8_t kLeAudioSamplingFreq176400Hz = 0x0B;
+constexpr uint8_t kLeAudioSamplingFreq192000Hz = 0x0C;
+constexpr uint8_t kLeAudioSamplingFreq384000Hz = 0x0D;
+
+/* Frame Durations */
+constexpr uint8_t kLeAudioCodecFrameDur7500us = 0x00;
+constexpr uint8_t kLeAudioCodecFrameDur10000us = 0x01;
+
+/* Audio Allocations */
+constexpr uint32_t kLeAudioLocationNotAllowed = 0x00000000;
+constexpr uint32_t kLeAudioLocationFrontLeft = 0x00000001;
+constexpr uint32_t kLeAudioLocationFrontRight = 0x00000002;
+constexpr uint32_t kLeAudioLocationFrontCenter = 0x00000004;
+constexpr uint32_t kLeAudioLocationLowFreqEffects1 = 0x00000008;
+constexpr uint32_t kLeAudioLocationBackLeft = 0x00000010;
+constexpr uint32_t kLeAudioLocationBackRight = 0x00000020;
+constexpr uint32_t kLeAudioLocationFrontLeftOfCenter = 0x00000040;
+constexpr uint32_t kLeAudioLocationFrontRightOfCenter = 0x00000080;
+constexpr uint32_t kLeAudioLocationBackCenter = 0x00000100;
+constexpr uint32_t kLeAudioLocationLowFreqEffects2 = 0x00000200;
+constexpr uint32_t kLeAudioLocationSideLeft = 0x00000400;
+constexpr uint32_t kLeAudioLocationSideRight = 0x00000800;
+constexpr uint32_t kLeAudioLocationTopFrontLeft = 0x00001000;
+constexpr uint32_t kLeAudioLocationTopFrontRight = 0x00002000;
+constexpr uint32_t kLeAudioLocationTopFrontCenter = 0x00004000;
+constexpr uint32_t kLeAudioLocationTopCenter = 0x00008000;
+constexpr uint32_t kLeAudioLocationTopBackLeft = 0x00010000;
+constexpr uint32_t kLeAudioLocationTopBackRight = 0x00020000;
+constexpr uint32_t kLeAudioLocationTopSideLeft = 0x00040000;
+constexpr uint32_t kLeAudioLocationTopSideRight = 0x00080000;
+constexpr uint32_t kLeAudioLocationTopBackCenter = 0x00100000;
+constexpr uint32_t kLeAudioLocationBottomFrontCenter = 0x00200000;
+constexpr uint32_t kLeAudioLocationBottomFrontLeft = 0x00400000;
+constexpr uint32_t kLeAudioLocationBottomFrontRight = 0x00800000;
+constexpr uint32_t kLeAudioLocationFrontLeftWide = 0x01000000;
+constexpr uint32_t kLeAudioLocationFrontRightWide = 0x02000000;
+constexpr uint32_t kLeAudioLocationLeftSurround = 0x04000000;
+constexpr uint32_t kLeAudioLocationRightSurround = 0x08000000;
+
+constexpr uint32_t kLeAudioLocationAnyLeft =
+    kLeAudioLocationFrontLeft | kLeAudioLocationBackLeft |
+    kLeAudioLocationFrontLeftOfCenter | kLeAudioLocationSideLeft |
+    kLeAudioLocationTopFrontLeft | kLeAudioLocationTopBackLeft |
+    kLeAudioLocationTopSideLeft | kLeAudioLocationBottomFrontLeft |
+    kLeAudioLocationFrontLeftWide | kLeAudioLocationLeftSurround;
+
+constexpr uint32_t kLeAudioLocationAnyRight =
+    kLeAudioLocationFrontRight | kLeAudioLocationBackRight |
+    kLeAudioLocationFrontRightOfCenter | kLeAudioLocationSideRight |
+    kLeAudioLocationTopFrontRight | kLeAudioLocationTopBackRight |
+    kLeAudioLocationTopSideRight | kLeAudioLocationBottomFrontRight |
+    kLeAudioLocationFrontRightWide | kLeAudioLocationRightSurround;
+
+constexpr uint32_t kLeAudioLocationStereo =
+    kLeAudioLocationFrontLeft | kLeAudioLocationFrontRight;
+
+/* Octets Per Frame */
+constexpr uint16_t kLeAudioCodecFrameLen30 = 30;
+constexpr uint16_t kLeAudioCodecFrameLen40 = 40;
+constexpr uint16_t kLeAudioCodecFrameLen60 = 60;
+constexpr uint16_t kLeAudioCodecFrameLen80 = 80;
+constexpr uint16_t kLeAudioCodecFrameLen100 = 100;
+constexpr uint16_t kLeAudioCodecFrameLen120 = 120;
+
+/* Helper map for matching various sampling frequency notations */
+const std::map<uint8_t, CodecSpecificConfigurationLtv::SamplingFrequency>
+    sampling_freq_map = {
+        {kLeAudioSamplingFreq8000Hz,
+         CodecSpecificConfigurationLtv::SamplingFrequency::HZ8000},
+        {kLeAudioSamplingFreq16000Hz,
+         CodecSpecificConfigurationLtv::SamplingFrequency::HZ16000},
+        {kLeAudioSamplingFreq24000Hz,
+         CodecSpecificConfigurationLtv::SamplingFrequency::HZ24000},
+        {kLeAudioSamplingFreq32000Hz,
+         CodecSpecificConfigurationLtv::SamplingFrequency::HZ32000},
+        {kLeAudioSamplingFreq44100Hz,
+         CodecSpecificConfigurationLtv::SamplingFrequency::HZ44100},
+        {kLeAudioSamplingFreq48000Hz,
+         CodecSpecificConfigurationLtv::SamplingFrequency::HZ48000}};
+
+/* Helper map for matching various frame durations notations */
+const std::map<uint8_t, CodecSpecificConfigurationLtv::FrameDuration>
+    frame_duration_map = {
+        {kLeAudioCodecFrameDur7500us,
+         CodecSpecificConfigurationLtv::FrameDuration::US7500},
+        {kLeAudioCodecFrameDur10000us,
+         CodecSpecificConfigurationLtv::FrameDuration::US10000}};
+
+/* Helper map for matching various audio channel allocation notations */
+std::map<uint32_t, uint32_t> audio_channel_allocation_map = {
+    {kLeAudioLocationNotAllowed,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::NOT_ALLOWED},
+    {kLeAudioLocationFrontLeft,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::FRONT_LEFT},
+    {kLeAudioLocationFrontRight,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::FRONT_RIGHT},
+    {kLeAudioLocationFrontCenter,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::FRONT_CENTER},
+    {kLeAudioLocationLowFreqEffects1,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::
+         LOW_FREQUENCY_EFFECTS_1},
+    {kLeAudioLocationBackLeft,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::BACK_LEFT},
+    {kLeAudioLocationBackRight,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::BACK_RIGHT},
+    {kLeAudioLocationFrontLeftOfCenter,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::
+         FRONT_LEFT_OF_CENTER},
+    {kLeAudioLocationFrontRightOfCenter,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::
+         FRONT_RIGHT_OF_CENTER},
+    {kLeAudioLocationBackCenter,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::BACK_CENTER},
+    {kLeAudioLocationLowFreqEffects2,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::
+         LOW_FREQUENCY_EFFECTS_2},
+    {kLeAudioLocationSideLeft,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::SIDE_LEFT},
+    {kLeAudioLocationSideRight,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::SIDE_RIGHT},
+    {kLeAudioLocationTopFrontLeft,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::TOP_FRONT_LEFT},
+    {kLeAudioLocationTopFrontRight,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::TOP_FRONT_RIGHT},
+    {kLeAudioLocationTopFrontCenter,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::TOP_FRONT_CENTER},
+    {kLeAudioLocationTopCenter,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::TOP_CENTER},
+    {kLeAudioLocationTopBackLeft,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::TOP_BACK_LEFT},
+    {kLeAudioLocationTopBackRight,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::TOP_BACK_RIGHT},
+    {kLeAudioLocationTopSideLeft,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::TOP_SIDE_LEFT},
+    {kLeAudioLocationTopSideRight,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::TOP_SIDE_RIGHT},
+    {kLeAudioLocationTopBackCenter,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::TOP_BACK_CENTER},
+    {kLeAudioLocationBottomFrontCenter,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::
+         BOTTOM_FRONT_CENTER},
+    {kLeAudioLocationBottomFrontLeft,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::BOTTOM_FRONT_LEFT},
+    {kLeAudioLocationBottomFrontRight,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::BOTTOM_FRONT_RIGHT},
+    {kLeAudioLocationFrontLeftWide,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::FRONT_LEFT_WIDE},
+    {kLeAudioLocationFrontRightWide,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::FRONT_RIGHT_WIDE},
+    {kLeAudioLocationLeftSurround,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::LEFT_SURROUND},
+    {kLeAudioLocationRightSurround,
+     CodecSpecificConfigurationLtv::AudioChannelAllocation::RIGHT_SURROUND},
+};
+
+static const std::vector<
+    std::pair<const char* /*schema*/, const char* /*content*/>>
+    kLeAudioSetConfigs = {{"/vendor/etc/aidl/le_audio/"
+                           "aidl_audio_set_configurations.bfbs",
+                           "/vendor/etc/aidl/le_audio/"
+                           "aidl_audio_set_configurations.json"}};
+static const std::vector<
+    std::pair<const char* /*schema*/, const char* /*content*/>>
+    kLeAudioSetScenarios = {{"/vendor/etc/aidl/le_audio/"
+                             "aidl_audio_set_scenarios.bfbs",
+                             "/vendor/etc/aidl/le_audio/"
+                             "aidl_audio_set_scenarios.json"}};
+
+/* Implementation */
+
+std::vector<LeAudioAseConfigurationSetting>
+AudioSetConfigurationProviderJson::GetLeAudioAseConfigurationSettings() {
+  AudioSetConfigurationProviderJson::LoadAudioSetConfigurationProviderJson();
+  return ase_configuration_settings_;
+}
+
+void AudioSetConfigurationProviderJson::
+    LoadAudioSetConfigurationProviderJson() {
+  if (configurations_.empty() || ase_configuration_settings_.empty()) {
+    ase_configuration_settings_.clear();
+    configurations_.clear();
+    auto loaded = LoadContent(kLeAudioSetConfigs, kLeAudioSetScenarios,
+                              CodecLocation::HOST);
+    if (!loaded)
+      LOG(ERROR) << ": Unable to load le audio set configuration files.";
+  } else
+    LOG(INFO) << ": Reusing loaded le audio set configuration";
+}
+
+const le_audio::CodecSpecificConfiguration*
+AudioSetConfigurationProviderJson::LookupCodecSpecificParam(
+    const flatbuffers::Vector<flatbuffers::Offset<
+        le_audio::CodecSpecificConfiguration>>* flat_codec_specific_params,
+    le_audio::CodecSpecificLtvGenericTypes type) {
+  auto it = std::find_if(
+      flat_codec_specific_params->cbegin(), flat_codec_specific_params->cend(),
+      [&type](const auto& csc) { return (csc->type() == type); });
+  return (it != flat_codec_specific_params->cend()) ? *it : nullptr;
+}
+
+void AudioSetConfigurationProviderJson::populateAudioChannelAllocation(
+    CodecSpecificConfigurationLtv::AudioChannelAllocation&
+        audio_channel_allocation,
+    uint32_t audio_location) {
+  audio_channel_allocation.bitmask = 0;
+  for (auto [allocation, bitmask] : audio_channel_allocation_map) {
+    if (audio_location & allocation)
+      audio_channel_allocation.bitmask |= bitmask;
+  }
+}
+
+void AudioSetConfigurationProviderJson::populateConfigurationData(
+    LeAudioAseConfiguration& ase,
+    const flatbuffers::Vector<
+        flatbuffers::Offset<le_audio::CodecSpecificConfiguration>>*
+        flat_codec_specific_params) {
+  uint8_t sampling_frequency = 0;
+  uint8_t frame_duration = 0;
+  uint32_t audio_channel_allocation = 0;
+  uint16_t octets_per_codec_frame = 0;
+  uint8_t codec_frames_blocks_per_sdu = 0;
+
+  auto param = LookupCodecSpecificParam(
+      flat_codec_specific_params,
+      le_audio::CodecSpecificLtvGenericTypes_SUPPORTED_SAMPLING_FREQUENCY);
+  if (param) {
+    auto ptr = param->compound_value()->value()->data();
+    STREAM_TO_UINT8(sampling_frequency, ptr);
+  }
+
+  param = LookupCodecSpecificParam(
+      flat_codec_specific_params,
+      le_audio::CodecSpecificLtvGenericTypes_SUPPORTED_FRAME_DURATION);
+  if (param) {
+    auto ptr = param->compound_value()->value()->data();
+    STREAM_TO_UINT8(frame_duration, ptr);
+  }
+
+  param = LookupCodecSpecificParam(
+      flat_codec_specific_params,
+      le_audio::
+          CodecSpecificLtvGenericTypes_SUPPORTED_AUDIO_CHANNEL_ALLOCATION);
+  if (param) {
+    auto ptr = param->compound_value()->value()->data();
+    STREAM_TO_UINT32(audio_channel_allocation, ptr);
+  }
+
+  param = LookupCodecSpecificParam(
+      flat_codec_specific_params,
+      le_audio::CodecSpecificLtvGenericTypes_SUPPORTED_OCTETS_PER_CODEC_FRAME);
+  if (param) {
+    auto ptr = param->compound_value()->value()->data();
+    STREAM_TO_UINT16(octets_per_codec_frame, ptr);
+  }
+
+  param = LookupCodecSpecificParam(
+      flat_codec_specific_params,
+      le_audio::
+          CodecSpecificLtvGenericTypes_SUPPORTED_CODEC_FRAME_BLOCKS_PER_SDU);
+  if (param) {
+    auto ptr = param->compound_value()->value()->data();
+    STREAM_TO_UINT8(codec_frames_blocks_per_sdu, ptr);
+  }
+
+  // Make the correct value
+  ase.codecConfiguration = std::vector<CodecSpecificConfigurationLtv>();
+
+  auto sampling_freq_it = sampling_freq_map.find(sampling_frequency);
+  if (sampling_freq_it != sampling_freq_map.end())
+    ase.codecConfiguration.push_back(sampling_freq_it->second);
+  auto frame_duration_it = frame_duration_map.find(frame_duration);
+  if (frame_duration_it != frame_duration_map.end())
+    ase.codecConfiguration.push_back(frame_duration_it->second);
+
+  CodecSpecificConfigurationLtv::AudioChannelAllocation channel_allocation;
+  populateAudioChannelAllocation(channel_allocation, audio_channel_allocation);
+  ase.codecConfiguration.push_back(channel_allocation);
+
+  auto octet_structure = CodecSpecificConfigurationLtv::OctetsPerCodecFrame();
+  octet_structure.value = octets_per_codec_frame;
+  ase.codecConfiguration.push_back(octet_structure);
+
+  auto frame_sdu_structure =
+      CodecSpecificConfigurationLtv::CodecFrameBlocksPerSDU();
+  frame_sdu_structure.value = codec_frames_blocks_per_sdu;
+  ase.codecConfiguration.push_back(frame_sdu_structure);
+  // TODO: Channel count
+}
+
+void AudioSetConfigurationProviderJson::populateAseConfiguration(
+    LeAudioAseConfiguration& ase,
+    const le_audio::AudioSetSubConfiguration* flat_subconfig,
+    const le_audio::QosConfiguration* qos_cfg) {
+  // Target latency
+  switch (qos_cfg->target_latency()) {
+    case le_audio::AudioSetConfigurationTargetLatency::
+        AudioSetConfigurationTargetLatency_BALANCED_RELIABILITY:
+      ase.targetLatency =
+          LeAudioAseConfiguration::TargetLatency::BALANCED_LATENCY_RELIABILITY;
+      break;
+    case le_audio::AudioSetConfigurationTargetLatency::
+        AudioSetConfigurationTargetLatency_HIGH_RELIABILITY:
+      ase.targetLatency =
+          LeAudioAseConfiguration::TargetLatency::HIGHER_RELIABILITY;
+      break;
+    case le_audio::AudioSetConfigurationTargetLatency::
+        AudioSetConfigurationTargetLatency_LOW:
+      ase.targetLatency = LeAudioAseConfiguration::TargetLatency::LOWER;
+      break;
+    default:
+      ase.targetLatency = LeAudioAseConfiguration::TargetLatency::UNDEFINED;
+      break;
+  };
+
+  ase.targetPhy = Phy::TWO_M;
+  // Making CodecId
+  if (flat_subconfig->codec_id()->coding_format() ==
+      (uint8_t)CodecId::Core::LC3) {
+    ase.codecId = CodecId::Core::LC3;
+  } else {
+    auto vendorC = CodecId::Vendor();
+    vendorC.codecId = flat_subconfig->codec_id()->vendor_codec_id();
+    vendorC.id = flat_subconfig->codec_id()->vendor_company_id();
+    ase.codecId = vendorC;
+  }
+  // Codec configuration data
+  populateConfigurationData(ase, flat_subconfig->codec_configuration());
+}
+
+void AudioSetConfigurationProviderJson::populateAseQosConfiguration(
+    LeAudioAseQosConfiguration& qos,
+    const le_audio::QosConfiguration* qos_cfg) {
+  qos.maxTransportLatencyMs = qos_cfg->max_transport_latency();
+  qos.retransmissionNum = qos_cfg->retransmission_number();
+}
+
+// Parse into AseDirectionConfiguration
+AseDirectionConfiguration
+AudioSetConfigurationProviderJson::SetConfigurationFromFlatSubconfig(
+    const le_audio::AudioSetSubConfiguration* flat_subconfig,
+    const le_audio::QosConfiguration* qos_cfg, CodecLocation location) {
+  AseDirectionConfiguration direction_conf;
+
+  LeAudioAseConfiguration ase;
+  LeAudioAseQosConfiguration qos;
+  LeAudioDataPathConfiguration path;
+
+  // Translate into LeAudioAseConfiguration
+  populateAseConfiguration(ase, flat_subconfig, qos_cfg);
+
+  // Translate into LeAudioAseQosConfiguration
+  populateAseQosConfiguration(qos, qos_cfg);
+
+  // Translate location to data path id
+  switch (location) {
+    case CodecLocation::ADSP:
+      path.isoDataPathConfiguration.isTransparent = true;
+      path.dataPathId = kIsoDataPathPlatformDefault;
+      break;
+    case CodecLocation::HOST:
+      path.isoDataPathConfiguration.isTransparent = true;
+      path.dataPathId = kIsoDataPathHci;
+      break;
+    case CodecLocation::CONTROLLER:
+      path.isoDataPathConfiguration.isTransparent = false;
+      path.dataPathId = kIsoDataPathPlatformDefault;
+      break;
+  }
+
+  direction_conf.aseConfiguration = ase;
+  direction_conf.qosConfiguration = qos;
+  direction_conf.dataPathConfiguration = path;
+
+  return direction_conf;
+}
+
+// Parse into AseDirectionConfiguration and the ConfigurationFlags
+// and put them in the given list.
+void AudioSetConfigurationProviderJson::processSubconfig(
+    const le_audio::AudioSetSubConfiguration* subconfig,
+    const le_audio::QosConfiguration* qos_cfg,
+    std::vector<std::optional<AseDirectionConfiguration>>&
+        directionAseConfiguration,
+    CodecLocation location) {
+  directionAseConfiguration.push_back(
+      SetConfigurationFromFlatSubconfig(subconfig, qos_cfg, location));
+}
+
+void AudioSetConfigurationProviderJson::PopulateAseConfigurationFromFlat(
+    const le_audio::AudioSetConfiguration* flat_cfg,
+    std::vector<const le_audio::CodecConfiguration*>* codec_cfgs,
+    std::vector<const le_audio::QosConfiguration*>* qos_cfgs,
+    CodecLocation location,
+    std::vector<std::optional<AseDirectionConfiguration>>&
+        sourceAseConfiguration,
+    std::vector<std::optional<AseDirectionConfiguration>>& sinkAseConfiguration,
+    ConfigurationFlags& /*configurationFlags*/) {
+  if (flat_cfg == nullptr) {
+    LOG(ERROR) << "flat_cfg cannot be null";
+    return;
+  }
+  std::string codec_config_key = flat_cfg->codec_config_name()->str();
+  auto* qos_config_key_array = flat_cfg->qos_config_name();
+
+  constexpr std::string_view default_qos = "QoS_Config_Balanced_Reliability";
+
+  std::string qos_sink_key(default_qos);
+  std::string qos_source_key(default_qos);
+
+  /* We expect maximum two QoS settings. First for Sink and second for Source
+   */
+  if (qos_config_key_array->size() > 0) {
+    qos_sink_key = qos_config_key_array->Get(0)->str();
+    if (qos_config_key_array->size() > 1) {
+      qos_source_key = qos_config_key_array->Get(1)->str();
+    } else {
+      qos_source_key = qos_sink_key;
+    }
+  }
+
+  LOG(INFO) << "Audio set config " << flat_cfg->name()->c_str()
+            << ": codec config " << codec_config_key.c_str() << ", qos_sink "
+            << qos_sink_key.c_str() << ", qos_source "
+            << qos_source_key.c_str();
+
+  // Find the first qos config that match the name
+  const le_audio::QosConfiguration* qos_sink_cfg = nullptr;
+  for (auto i = qos_cfgs->begin(); i != qos_cfgs->end(); ++i) {
+    if ((*i)->name()->str() == qos_sink_key) {
+      qos_sink_cfg = *i;
+      break;
+    }
+  }
+
+  const le_audio::QosConfiguration* qos_source_cfg = nullptr;
+  for (auto i = qos_cfgs->begin(); i != qos_cfgs->end(); ++i) {
+    if ((*i)->name()->str() == qos_source_key) {
+      qos_source_cfg = *i;
+      break;
+    }
+  }
+
+  // First codec_cfg with the same name
+  const le_audio::CodecConfiguration* codec_cfg = nullptr;
+  for (auto i = codec_cfgs->begin(); i != codec_cfgs->end(); ++i) {
+    if ((*i)->name()->str() == codec_config_key) {
+      codec_cfg = *i;
+      break;
+    }
+  }
+
+  // Process each subconfig and put it into the correct list
+  if (codec_cfg != nullptr && codec_cfg->subconfigurations()) {
+    /* Load subconfigurations */
+    for (auto subconfig : *codec_cfg->subconfigurations()) {
+      if (subconfig->direction() == kLeAudioDirectionSink) {
+        processSubconfig(subconfig, qos_sink_cfg, sinkAseConfiguration,
+                         location);
+      } else {
+        processSubconfig(subconfig, qos_source_cfg, sourceAseConfiguration,
+                         location);
+      }
+    }
+  } else {
+    if (codec_cfg == nullptr) {
+      LOG(ERROR) << "No codec config matching key " << codec_config_key.c_str()
+                 << " found";
+    } else {
+      LOG(ERROR) << "Configuration '" << flat_cfg->name()->c_str()
+                 << "' has no valid subconfigurations.";
+    }
+  }
+
+  // TODO: Populate information for ConfigurationFlags
+}
+
+bool AudioSetConfigurationProviderJson::LoadConfigurationsFromFiles(
+    const char* schema_file, const char* content_file, CodecLocation location) {
+  flatbuffers::Parser configurations_parser_;
+  std::string configurations_schema_binary_content;
+  bool ok = flatbuffers::LoadFile(schema_file, true,
+                                  &configurations_schema_binary_content);
+  LOG(INFO) << __func__ << ": Loading file " << schema_file;
+  if (!ok) return ok;
+
+  /* Load the binary schema */
+  ok = configurations_parser_.Deserialize(
+      (uint8_t*)configurations_schema_binary_content.c_str(),
+      configurations_schema_binary_content.length());
+  if (!ok) return ok;
+
+  /* Load the content from JSON */
+  std::string configurations_json_content;
+  LOG(INFO) << __func__ << ": Loading file " << content_file;
+  ok = flatbuffers::LoadFile(content_file, false, &configurations_json_content);
+  if (!ok) return ok;
+
+  /* Parse */
+  LOG(INFO) << __func__ << ": Parse JSON content";
+  ok = configurations_parser_.Parse(configurations_json_content.c_str());
+  if (!ok) return ok;
+
+  /* Import from flatbuffers */
+  LOG(INFO) << __func__ << ": Build flat buffer structure";
+  auto configurations_root = le_audio::GetAudioSetConfigurations(
+      configurations_parser_.builder_.GetBufferPointer());
+  if (!configurations_root) return false;
+
+  auto flat_qos_configs = configurations_root->qos_configurations();
+  if ((flat_qos_configs == nullptr) || (flat_qos_configs->size() == 0))
+    return false;
+
+  LOG(DEBUG) << ": Updating " << flat_qos_configs->size()
+             << " qos config entries.";
+  std::vector<const le_audio::QosConfiguration*> qos_cfgs;
+  for (auto const& flat_qos_cfg : *flat_qos_configs) {
+    qos_cfgs.push_back(flat_qos_cfg);
+  }
+
+  auto flat_codec_configs = configurations_root->codec_configurations();
+  if ((flat_codec_configs == nullptr) || (flat_codec_configs->size() == 0))
+    return false;
+
+  LOG(DEBUG) << ": Updating " << flat_codec_configs->size()
+             << " codec config entries.";
+  std::vector<const le_audio::CodecConfiguration*> codec_cfgs;
+  for (auto const& flat_codec_cfg : *flat_codec_configs) {
+    codec_cfgs.push_back(flat_codec_cfg);
+  }
+
+  auto flat_configs = configurations_root->configurations();
+  if ((flat_configs == nullptr) || (flat_configs->size() == 0)) return false;
+
+  LOG(DEBUG) << ": Updating " << flat_configs->size() << " config entries.";
+  for (auto const& flat_cfg : *flat_configs) {
+    // Create 3 vector to use
+    std::vector<std::optional<AseDirectionConfiguration>>
+        sourceAseConfiguration;
+    std::vector<std::optional<AseDirectionConfiguration>> sinkAseConfiguration;
+    ConfigurationFlags configurationFlags;
+    PopulateAseConfigurationFromFlat(flat_cfg, &codec_cfgs, &qos_cfgs, location,
+                                     sourceAseConfiguration,
+                                     sinkAseConfiguration, configurationFlags);
+    if (sourceAseConfiguration.empty() && sinkAseConfiguration.empty())
+      continue;
+    configurations_[flat_cfg->name()->str()] = std::make_tuple(
+        sourceAseConfiguration, sinkAseConfiguration, configurationFlags);
+  }
+
+  return true;
+}
+
+bool AudioSetConfigurationProviderJson::LoadScenariosFromFiles(
+    const char* schema_file, const char* content_file) {
+  flatbuffers::Parser scenarios_parser_;
+  std::string scenarios_schema_binary_content;
+  bool ok = flatbuffers::LoadFile(schema_file, true,
+                                  &scenarios_schema_binary_content);
+  LOG(INFO) << __func__ << ": Loading file " << schema_file;
+  if (!ok) return ok;
+
+  /* Load the binary schema */
+  ok = scenarios_parser_.Deserialize(
+      (uint8_t*)scenarios_schema_binary_content.c_str(),
+      scenarios_schema_binary_content.length());
+  if (!ok) return ok;
+
+  /* Load the content from JSON */
+  LOG(INFO) << __func__ << ": Loading file " << content_file;
+  std::string scenarios_json_content;
+  ok = flatbuffers::LoadFile(content_file, false, &scenarios_json_content);
+  if (!ok) return ok;
+
+  /* Parse */
+  LOG(INFO) << __func__ << ": Parse json content";
+  ok = scenarios_parser_.Parse(scenarios_json_content.c_str());
+  if (!ok) return ok;
+
+  /* Import from flatbuffers */
+  LOG(INFO) << __func__ << ": Build flat buffer structure";
+  auto scenarios_root = le_audio::GetAudioSetScenarios(
+      scenarios_parser_.builder_.GetBufferPointer());
+  if (!scenarios_root) return false;
+
+  auto flat_scenarios = scenarios_root->scenarios();
+  if ((flat_scenarios == nullptr) || (flat_scenarios->size() == 0))
+    return false;
+
+  LOG(INFO) << __func__ << ": Turn flat buffer into structure";
+  AudioContext media_context = AudioContext();
+  media_context.bitmask =
+      (AudioContext::ALERTS | AudioContext::INSTRUCTIONAL |
+       AudioContext::NOTIFICATIONS | AudioContext::EMERGENCY_ALARM |
+       AudioContext::UNSPECIFIED | AudioContext::MEDIA);
+
+  AudioContext conversational_context = AudioContext();
+  conversational_context.bitmask =
+      (AudioContext::RINGTONE_ALERTS | AudioContext::CONVERSATIONAL);
+
+  AudioContext live_context = AudioContext();
+  live_context.bitmask = AudioContext::LIVE_AUDIO;
+
+  AudioContext game_context = AudioContext();
+  game_context.bitmask = AudioContext::GAME;
+
+  AudioContext voice_assistants_context = AudioContext();
+  voice_assistants_context.bitmask = AudioContext::VOICE_ASSISTANTS;
+
+  LOG(DEBUG) << "Updating " << flat_scenarios->size() << " scenarios.";
+  for (auto const& scenario : *flat_scenarios) {
+    LOG(DEBUG) << "Scenario " << scenario->name()->c_str()
+               << " configs: " << scenario->configurations()->size();
+
+    if (!scenario->configurations()) continue;
+    std::string scenario_name = scenario->name()->c_str();
+    AudioContext context;
+    if (scenario_name == "Media")
+      context = AudioContext(media_context);
+    else if (scenario_name == "Conversational")
+      context = AudioContext(conversational_context);
+    else if (scenario_name == "Live")
+      context = AudioContext(live_context);
+    else if (scenario_name == "Game")
+      context = AudioContext(game_context);
+    else if (scenario_name == "VoiceAssistants")
+      context = AudioContext(voice_assistants_context);
+
+    for (auto it = scenario->configurations()->begin();
+         it != scenario->configurations()->end(); ++it) {
+      auto config_name = it->str();
+      auto configuration = configurations_.find(config_name);
+      if (configuration == configurations_.end()) continue;
+      LOG(DEBUG) << "Getting configuration with name: " << config_name;
+      auto [source, sink, flags] = configuration->second;
+      // Each configuration will create a LeAudioAseConfigurationSetting
+      // with the same {context, packing}
+      // and different data
+      LeAudioAseConfigurationSetting setting;
+      setting.audioContext = context;
+      // TODO: Packing
+      setting.sourceAseConfiguration = source;
+      setting.sinkAseConfiguration = sink;
+      setting.flags = flags;
+      // Add to list of setting
+      LOG(DEBUG) << "Pushing configuration to list: " << config_name;
+      ase_configuration_settings_.push_back(setting);
+    }
+  }
+
+  return true;
+}
+
+bool AudioSetConfigurationProviderJson::LoadContent(
+    std::vector<std::pair<const char* /*schema*/, const char* /*content*/>>
+        config_files,
+    std::vector<std::pair<const char* /*schema*/, const char* /*content*/>>
+        scenario_files,
+    CodecLocation location) {
+  for (auto [schema, content] : config_files) {
+    if (!LoadConfigurationsFromFiles(schema, content, location)) return false;
+  }
+
+  for (auto [schema, content] : scenario_files) {
+    if (!LoadScenariosFromFiles(schema, content)) return false;
+  }
+  return true;
+}
+
+}  // namespace audio
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl

bluetooth/audio/utils/aidl_session/BluetoothLeAudioAseConfigurationSettingProvider.h

@@ -0,0 +1,125 @@
+
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <aidl/android/hardware/bluetooth/audio/IBluetoothAudioProvider.h>
+
+#include <map>
+#include <mutex>
+#include <optional>
+#include <string>
+#include <string_view>
+#include <tuple>
+
+#include "audio_set_configurations_generated.h"
+#include "audio_set_scenarios_generated.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace audio {
+
+using LeAudioAseConfigurationSetting =
+    IBluetoothAudioProvider::LeAudioAseConfigurationSetting;
+using AseDirectionConfiguration = IBluetoothAudioProvider::
+    LeAudioAseConfigurationSetting::AseDirectionConfiguration;
+using LeAudioAseQosConfiguration =
+    IBluetoothAudioProvider::LeAudioAseQosConfiguration;
+using LeAudioDataPathConfiguration =
+    IBluetoothAudioProvider::LeAudioDataPathConfiguration;
+
+enum class CodecLocation {
+  HOST,
+  ADSP,
+  CONTROLLER,
+};
+
+class AudioSetConfigurationProviderJson {
+ public:
+  static std::vector<LeAudioAseConfigurationSetting>
+  GetLeAudioAseConfigurationSettings();
+
+ private:
+  static void LoadAudioSetConfigurationProviderJson();
+
+  static const le_audio::CodecSpecificConfiguration* LookupCodecSpecificParam(
+      const flatbuffers::Vector<flatbuffers::Offset<
+          le_audio::CodecSpecificConfiguration>>* flat_codec_specific_params,
+      le_audio::CodecSpecificLtvGenericTypes type);
+
+  static void populateAudioChannelAllocation(
+      CodecSpecificConfigurationLtv::AudioChannelAllocation&
+          audio_channel_allocation,
+      uint32_t audio_location);
+
+  static void populateConfigurationData(
+      LeAudioAseConfiguration& ase,
+      const flatbuffers::Vector<
+          flatbuffers::Offset<le_audio::CodecSpecificConfiguration>>*
+          flat_codec_specific_params);
+
+  static void populateAseConfiguration(
+      LeAudioAseConfiguration& ase,
+      const le_audio::AudioSetSubConfiguration* flat_subconfig,
+      const le_audio::QosConfiguration* qos_cfg);
+
+  static void populateAseQosConfiguration(
+      LeAudioAseQosConfiguration& qos,
+      const le_audio::QosConfiguration* qos_cfg);
+
+  static AseDirectionConfiguration SetConfigurationFromFlatSubconfig(
+      const le_audio::AudioSetSubConfiguration* flat_subconfig,
+      const le_audio::QosConfiguration* qos_cfg, CodecLocation location);
+
+  static void processSubconfig(
+      const le_audio::AudioSetSubConfiguration* subconfig,
+      const le_audio::QosConfiguration* qos_cfg,
+      std::vector<std::optional<AseDirectionConfiguration>>&
+          directionAseConfiguration,
+      CodecLocation location);
+
+  static void PopulateAseConfigurationFromFlat(
+      const le_audio::AudioSetConfiguration* flat_cfg,
+      std::vector<const le_audio::CodecConfiguration*>* codec_cfgs,
+      std::vector<const le_audio::QosConfiguration*>* qos_cfgs,
+      CodecLocation location,
+      std::vector<std::optional<AseDirectionConfiguration>>&
+          sourceAseConfiguration,
+      std::vector<std::optional<AseDirectionConfiguration>>&
+          sinkAseConfiguration,
+      ConfigurationFlags& configurationFlags);
+
+  static bool LoadConfigurationsFromFiles(const char* schema_file,
+                                          const char* content_file,
+                                          CodecLocation location);
+
+  static bool LoadScenariosFromFiles(const char* schema_file,
+                                     const char* content_file);
+
+  static bool LoadContent(
+      std::vector<std::pair<const char* /*schema*/, const char* /*content*/>>
+          config_files,
+      std::vector<std::pair<const char* /*schema*/, const char* /*content*/>>
+          scenario_files,
+      CodecLocation location);
+};
+
+}  // namespace audio
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl

bluetooth/audio/utils/aidl_session/BluetoothLeAudioCodecsProvider.cpp

@@ -0,0 +1,555 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <set>
+
+#include "aidl/android/hardware/bluetooth/audio/ChannelMode.h"
+#include "aidl/android/hardware/bluetooth/audio/CodecId.h"
+#include "aidl_android_hardware_bluetooth_audio_setting_enums.h"
+#define LOG_TAG "BTAudioCodecsProviderAidl"
+
+#include "BluetoothLeAudioCodecsProvider.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace audio {
+
+static const char* kLeAudioCodecCapabilitiesFile =
+    "/vendor/etc/le_audio_codec_capabilities.xml";
+
+static const AudioLocation kStereoAudio = static_cast<AudioLocation>(
+    static_cast<uint8_t>(AudioLocation::FRONT_LEFT) |
+    static_cast<uint8_t>(AudioLocation::FRONT_RIGHT));
+static const AudioLocation kMonoAudio = AudioLocation::UNKNOWN;
+
+static std::vector<LeAudioCodecCapabilitiesSetting> leAudioCodecCapabilities;
+
+static bool isInvalidFileContent = false;
+
+std::optional<setting::LeAudioOffloadSetting>
+BluetoothLeAudioCodecsProvider::ParseFromLeAudioOffloadSettingFile() {
+  if (!leAudioCodecCapabilities.empty() || isInvalidFileContent) {
+    return std::nullopt;
+  }
+  auto le_audio_offload_setting =
+      setting::readLeAudioOffloadSetting(kLeAudioCodecCapabilitiesFile);
+  if (!le_audio_offload_setting.has_value()) {
+    LOG(ERROR) << __func__ << ": Failed to read "
+               << kLeAudioCodecCapabilitiesFile;
+  }
+  return le_audio_offload_setting;
+}
+
+std::unordered_map<SessionType, std::vector<CodecInfo>>
+BluetoothLeAudioCodecsProvider::GetLeAudioCodecInfo(
+    const std::optional<setting::LeAudioOffloadSetting>&
+        le_audio_offload_setting) {
+  // Load from previous storage if present
+  if (!session_codecs_map_.empty()) return session_codecs_map_;
+
+  isInvalidFileContent = true;
+  if (!le_audio_offload_setting.has_value()) return {};
+
+  // Load scenario, configuration, codec configuration and strategy
+  LoadConfigurationToMap(le_audio_offload_setting);
+  if (supported_scenarios_.empty() || configuration_map_.empty() ||
+      codec_configuration_map_.empty() || strategy_configuration_map_.empty())
+    return {};
+
+  // Map each configuration into a CodecInfo
+  std::unordered_map<std::string, CodecInfo> config_codec_info_map_;
+
+  for (auto& p : configuration_map_) {
+    // Initialize new CodecInfo for the config
+    auto config_name = p.first;
+    if (config_codec_info_map_.count(config_name) == 0)
+      config_codec_info_map_[config_name] = CodecInfo();
+
+    // Getting informations from codecConfig and strategyConfig
+    const auto codec_config_name = p.second.getCodecConfiguration();
+    const auto strategy_config_name = p.second.getStrategyConfiguration();
+    const auto codec_configuration_map_iter =
+        codec_configuration_map_.find(codec_config_name);
+    if (codec_configuration_map_iter == codec_configuration_map_.end())
+      continue;
+    const auto strategy_configuration_map_iter =
+        strategy_configuration_map_.find(strategy_config_name);
+    if (strategy_configuration_map_iter == strategy_configuration_map_.end())
+      continue;
+
+    const auto& codec_config = codec_configuration_map_iter->second;
+    const auto codec = codec_config.getCodec();
+    const auto& strategy_config = strategy_configuration_map_iter->second;
+    const auto strategy_config_channel_count =
+        strategy_config.getChannelCount();
+
+    // Initiate information
+    auto& codec_info = config_codec_info_map_[config_name];
+    switch (codec) {
+      case setting::CodecType::LC3:
+        codec_info.name = "LC3";
+        codec_info.id = CodecId::Core::LC3;
+        break;
+      default:
+        codec_info.name = "UNDEFINE";
+        codec_info.id = CodecId::Vendor();
+        break;
+    }
+    codec_info.transport =
+        CodecInfo::Transport::make<CodecInfo::Transport::Tag::leAudio>();
+
+    // Mapping codec configuration information
+    auto& transport =
+        codec_info.transport.get<CodecInfo::Transport::Tag::leAudio>();
+    transport.samplingFrequencyHz.push_back(
+        codec_config.getSamplingFrequency());
+    // Mapping octetsPerCodecFrame to bitdepth for easier comparison.
+    transport.bitdepth.push_back(codec_config.getOctetsPerCodecFrame());
+    transport.frameDurationUs.push_back(codec_config.getFrameDurationUs());
+    switch (strategy_config.getAudioLocation()) {
+      case setting::AudioLocation::MONO:
+        if (strategy_config_channel_count == 1)
+          transport.channelMode.push_back(ChannelMode::MONO);
+        else
+          transport.channelMode.push_back(ChannelMode::DUALMONO);
+        break;
+      case setting::AudioLocation::STEREO:
+        transport.channelMode.push_back(ChannelMode::STEREO);
+        break;
+      default:
+        transport.channelMode.push_back(ChannelMode::UNKNOWN);
+        break;
+    }
+  }
+
+  // Goes through every scenario, deduplicate configuration
+  std::set<std::string> encoding_config, decoding_config, broadcast_config;
+  for (auto& s : supported_scenarios_) {
+    if (s.hasEncode()) encoding_config.insert(s.getEncode());
+    if (s.hasDecode()) decoding_config.insert(s.getDecode());
+    if (s.hasBroadcast()) broadcast_config.insert(s.getBroadcast());
+  }
+
+  // Split by session types and add results
+  const auto encoding_path =
+      SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH;
+  const auto decoding_path =
+      SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH;
+  const auto broadcast_path =
+      SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH;
+  session_codecs_map_ =
+      std::unordered_map<SessionType, std::vector<CodecInfo>>();
+  session_codecs_map_[encoding_path] = std::vector<CodecInfo>();
+  session_codecs_map_[decoding_path] = std::vector<CodecInfo>();
+  session_codecs_map_[broadcast_path] = std::vector<CodecInfo>();
+  session_codecs_map_[encoding_path].reserve(encoding_config.size());
+  session_codecs_map_[decoding_path].reserve(decoding_config.size());
+  session_codecs_map_[broadcast_path].reserve(broadcast_config.size());
+  for (auto& c : encoding_config)
+    session_codecs_map_[encoding_path].push_back(config_codec_info_map_[c]);
+  for (auto& c : decoding_config)
+    session_codecs_map_[decoding_path].push_back(config_codec_info_map_[c]);
+  for (auto& c : broadcast_config)
+    session_codecs_map_[broadcast_path].push_back(config_codec_info_map_[c]);
+
+  isInvalidFileContent = session_codecs_map_.empty();
+
+  return session_codecs_map_;
+}
+
+std::vector<LeAudioCodecCapabilitiesSetting>
+BluetoothLeAudioCodecsProvider::GetLeAudioCodecCapabilities(
+    const std::optional<setting::LeAudioOffloadSetting>&
+        le_audio_offload_setting) {
+  if (!leAudioCodecCapabilities.empty()) {
+    return leAudioCodecCapabilities;
+  }
+
+  isInvalidFileContent = true;
+
+  if (!le_audio_offload_setting.has_value()) {
+    LOG(ERROR)
+        << __func__
+        << ": input le_audio_offload_setting content need to be non empty";
+    return {};
+  }
+
+  LoadConfigurationToMap(le_audio_offload_setting);
+  if (supported_scenarios_.empty() || configuration_map_.empty() ||
+      codec_configuration_map_.empty() || strategy_configuration_map_.empty())
+    return {};
+
+  leAudioCodecCapabilities =
+      ComposeLeAudioCodecCapabilities(supported_scenarios_);
+  isInvalidFileContent = leAudioCodecCapabilities.empty();
+
+  return leAudioCodecCapabilities;
+}
+
+void BluetoothLeAudioCodecsProvider::ClearLeAudioCodecCapabilities() {
+  leAudioCodecCapabilities.clear();
+  configuration_map_.clear();
+  codec_configuration_map_.clear();
+  strategy_configuration_map_.clear();
+  session_codecs_map_.clear();
+  supported_scenarios_.clear();
+}
+
+std::vector<setting::Scenario> BluetoothLeAudioCodecsProvider::GetScenarios(
+    const std::optional<setting::LeAudioOffloadSetting>&
+        le_audio_offload_setting) {
+  std::vector<setting::Scenario> supported_scenarios;
+  if (le_audio_offload_setting->hasScenarioList()) {
+    for (const auto& scenario_list :
+         le_audio_offload_setting->getScenarioList()) {
+      if (!scenario_list.hasScenario()) {
+        continue;
+      }
+      for (const auto& scenario : scenario_list.getScenario()) {
+        if (scenario.hasEncode() && scenario.hasDecode()) {
+          supported_scenarios.push_back(scenario);
+        }
+      }
+    }
+  }
+  return supported_scenarios;
+}
+
+void BluetoothLeAudioCodecsProvider::UpdateConfigurationsToMap(
+    const std::optional<setting::LeAudioOffloadSetting>&
+        le_audio_offload_setting) {
+  if (le_audio_offload_setting->hasConfigurationList()) {
+    for (const auto& configuration_list :
+         le_audio_offload_setting->getConfigurationList()) {
+      if (!configuration_list.hasConfiguration()) {
+        continue;
+      }
+      for (const auto& configuration : configuration_list.getConfiguration()) {
+        if (configuration.hasName() && configuration.hasCodecConfiguration() &&
+            configuration.hasStrategyConfiguration()) {
+          configuration_map_.insert(
+              make_pair(configuration.getName(), configuration));
+        }
+      }
+    }
+  }
+}
+
+void BluetoothLeAudioCodecsProvider::UpdateCodecConfigurationsToMap(
+    const std::optional<setting::LeAudioOffloadSetting>&
+        le_audio_offload_setting) {
+  if (le_audio_offload_setting->hasCodecConfigurationList()) {
+    for (const auto& codec_configuration_list :
+         le_audio_offload_setting->getCodecConfigurationList()) {
+      if (!codec_configuration_list.hasCodecConfiguration()) {
+        continue;
+      }
+      for (const auto& codec_configuration :
+           codec_configuration_list.getCodecConfiguration()) {
+        if (IsValidCodecConfiguration(codec_configuration)) {
+          codec_configuration_map_.insert(
+              make_pair(codec_configuration.getName(), codec_configuration));
+        }
+      }
+    }
+  }
+}
+
+void BluetoothLeAudioCodecsProvider::UpdateStrategyConfigurationsToMap(
+    const std::optional<setting::LeAudioOffloadSetting>&
+        le_audio_offload_setting) {
+  if (le_audio_offload_setting->hasStrategyConfigurationList()) {
+    for (const auto& strategy_configuration_list :
+         le_audio_offload_setting->getStrategyConfigurationList()) {
+      if (!strategy_configuration_list.hasStrategyConfiguration()) {
+        continue;
+      }
+      for (const auto& strategy_configuration :
+           strategy_configuration_list.getStrategyConfiguration()) {
+        if (IsValidStrategyConfiguration(strategy_configuration)) {
+          strategy_configuration_map_.insert(make_pair(
+              strategy_configuration.getName(), strategy_configuration));
+        }
+      }
+    }
+  }
+}
+
+void BluetoothLeAudioCodecsProvider::LoadConfigurationToMap(
+    const std::optional<setting::LeAudioOffloadSetting>&
+        le_audio_offload_setting) {
+  ClearLeAudioCodecCapabilities();
+
+  supported_scenarios_ = GetScenarios(le_audio_offload_setting);
+  if (supported_scenarios_.empty()) {
+    LOG(ERROR) << __func__ << ": No scenarios in "
+               << kLeAudioCodecCapabilitiesFile;
+    return;
+  }
+
+  UpdateConfigurationsToMap(le_audio_offload_setting);
+  if (configuration_map_.empty()) {
+    LOG(ERROR) << __func__ << ": No configurations in "
+               << kLeAudioCodecCapabilitiesFile;
+    return;
+  }
+
+  UpdateCodecConfigurationsToMap(le_audio_offload_setting);
+  if (codec_configuration_map_.empty()) {
+    LOG(ERROR) << __func__ << ": No codec configurations in "
+               << kLeAudioCodecCapabilitiesFile;
+    return;
+  }
+
+  UpdateStrategyConfigurationsToMap(le_audio_offload_setting);
+  if (strategy_configuration_map_.empty()) {
+    LOG(ERROR) << __func__ << ": No strategy configurations in "
+               << kLeAudioCodecCapabilitiesFile;
+    return;
+  }
+}
+
+std::vector<LeAudioCodecCapabilitiesSetting>
+BluetoothLeAudioCodecsProvider::ComposeLeAudioCodecCapabilities(
+    const std::vector<setting::Scenario>& supported_scenarios) {
+  std::vector<LeAudioCodecCapabilitiesSetting> le_audio_codec_capabilities;
+  for (const auto& scenario : supported_scenarios) {
+    UnicastCapability unicast_encode_capability =
+        GetUnicastCapability(scenario.getEncode());
+    UnicastCapability unicast_decode_capability =
+        GetUnicastCapability(scenario.getDecode());
+    BroadcastCapability broadcast_capability = {.codecType =
+                                                    CodecType::UNKNOWN};
+
+    if (scenario.hasBroadcast()) {
+      broadcast_capability = GetBroadcastCapability(scenario.getBroadcast());
+    }
+
+    // At least one capability should be valid
+    if (unicast_encode_capability.codecType == CodecType::UNKNOWN &&
+        unicast_decode_capability.codecType == CodecType::UNKNOWN &&
+        broadcast_capability.codecType == CodecType::UNKNOWN) {
+      LOG(ERROR) << __func__ << ": None of the capability is valid.";
+      continue;
+    }
+
+    le_audio_codec_capabilities.push_back(
+        {.unicastEncodeCapability = unicast_encode_capability,
+         .unicastDecodeCapability = unicast_decode_capability,
+         .broadcastCapability = broadcast_capability});
+  }
+  return le_audio_codec_capabilities;
+}
+
+UnicastCapability BluetoothLeAudioCodecsProvider::GetUnicastCapability(
+    const std::string& coding_direction) {
+  if (coding_direction == "invalid") {
+    return {.codecType = CodecType::UNKNOWN};
+  }
+
+  auto configuration_iter = configuration_map_.find(coding_direction);
+  if (configuration_iter == configuration_map_.end()) {
+    return {.codecType = CodecType::UNKNOWN};
+  }
+
+  auto codec_configuration_iter = codec_configuration_map_.find(
+      configuration_iter->second.getCodecConfiguration());
+  if (codec_configuration_iter == codec_configuration_map_.end()) {
+    return {.codecType = CodecType::UNKNOWN};
+  }
+
+  auto strategy_configuration_iter = strategy_configuration_map_.find(
+      configuration_iter->second.getStrategyConfiguration());
+  if (strategy_configuration_iter == strategy_configuration_map_.end()) {
+    return {.codecType = CodecType::UNKNOWN};
+  }
+
+  CodecType codec_type =
+      GetCodecType(codec_configuration_iter->second.getCodec());
+  if (codec_type == CodecType::LC3) {
+    return ComposeUnicastCapability(
+        codec_type,
+        GetAudioLocation(
+            strategy_configuration_iter->second.getAudioLocation()),
+        strategy_configuration_iter->second.getConnectedDevice(),
+        strategy_configuration_iter->second.getChannelCount(),
+        ComposeLc3Capability(codec_configuration_iter->second));
+  } else if (codec_type == CodecType::APTX_ADAPTIVE_LE ||
+             codec_type == CodecType::APTX_ADAPTIVE_LEX) {
+    return ComposeUnicastCapability(
+        codec_type,
+        GetAudioLocation(
+            strategy_configuration_iter->second.getAudioLocation()),
+        strategy_configuration_iter->second.getConnectedDevice(),
+        strategy_configuration_iter->second.getChannelCount(),
+        ComposeAptxAdaptiveLeCapability(codec_configuration_iter->second));
+  }
+  return {.codecType = CodecType::UNKNOWN};
+}
+
+BroadcastCapability BluetoothLeAudioCodecsProvider::GetBroadcastCapability(
+    const std::string& coding_direction) {
+  if (coding_direction == "invalid") {
+    return {.codecType = CodecType::UNKNOWN};
+  }
+
+  auto configuration_iter = configuration_map_.find(coding_direction);
+  if (configuration_iter == configuration_map_.end()) {
+    return {.codecType = CodecType::UNKNOWN};
+  }
+
+  auto codec_configuration_iter = codec_configuration_map_.find(
+      configuration_iter->second.getCodecConfiguration());
+  if (codec_configuration_iter == codec_configuration_map_.end()) {
+    return {.codecType = CodecType::UNKNOWN};
+  }
+
+  auto strategy_configuration_iter = strategy_configuration_map_.find(
+      configuration_iter->second.getStrategyConfiguration());
+  if (strategy_configuration_iter == strategy_configuration_map_.end()) {
+    return {.codecType = CodecType::UNKNOWN};
+  }
+
+  CodecType codec_type =
+      GetCodecType(codec_configuration_iter->second.getCodec());
+  std::vector<std::optional<Lc3Capabilities>> bcastLc3Cap(
+      1, std::optional(ComposeLc3Capability(codec_configuration_iter->second)));
+
+  if (codec_type == CodecType::LC3) {
+    return ComposeBroadcastCapability(
+        codec_type,
+        GetAudioLocation(
+            strategy_configuration_iter->second.getAudioLocation()),
+        strategy_configuration_iter->second.getChannelCount(), bcastLc3Cap);
+  }
+  return {.codecType = CodecType::UNKNOWN};
+}
+
+template <class T>
+BroadcastCapability BluetoothLeAudioCodecsProvider::ComposeBroadcastCapability(
+    const CodecType& codec_type, const AudioLocation& audio_location,
+    const uint8_t& channel_count, const std::vector<T>& capability) {
+  return {.codecType = codec_type,
+          .supportedChannel = audio_location,
+          .channelCountPerStream = channel_count,
+          .leAudioCodecCapabilities = std::optional(capability)};
+}
+
+template <class T>
+UnicastCapability BluetoothLeAudioCodecsProvider::ComposeUnicastCapability(
+    const CodecType& codec_type, const AudioLocation& audio_location,
+    const uint8_t& device_cnt, const uint8_t& channel_count,
+    const T& capability) {
+  return {
+      .codecType = codec_type,
+      .supportedChannel = audio_location,
+      .deviceCount = device_cnt,
+      .channelCountPerDevice = channel_count,
+      .leAudioCodecCapabilities =
+          UnicastCapability::LeAudioCodecCapabilities(capability),
+  };
+}
+
+Lc3Capabilities BluetoothLeAudioCodecsProvider::ComposeLc3Capability(
+    const setting::CodecConfiguration& codec_configuration) {
+  return {.samplingFrequencyHz = {codec_configuration.getSamplingFrequency()},
+          .frameDurationUs = {codec_configuration.getFrameDurationUs()},
+          .octetsPerFrame = {codec_configuration.getOctetsPerCodecFrame()}};
+}
+
+AptxAdaptiveLeCapabilities
+BluetoothLeAudioCodecsProvider::ComposeAptxAdaptiveLeCapability(
+    const setting::CodecConfiguration& codec_configuration) {
+  return {.samplingFrequencyHz = {codec_configuration.getSamplingFrequency()},
+          .frameDurationUs = {codec_configuration.getFrameDurationUs()},
+          .octetsPerFrame = {codec_configuration.getOctetsPerCodecFrame()}};
+}
+
+AudioLocation BluetoothLeAudioCodecsProvider::GetAudioLocation(
+    const setting::AudioLocation& audio_location) {
+  switch (audio_location) {
+    case setting::AudioLocation::MONO:
+      return kMonoAudio;
+    case setting::AudioLocation::STEREO:
+      return kStereoAudio;
+    default:
+      return AudioLocation::UNKNOWN;
+  }
+}
+
+CodecType BluetoothLeAudioCodecsProvider::GetCodecType(
+    const setting::CodecType& codec_type) {
+  switch (codec_type) {
+    case setting::CodecType::LC3:
+      return CodecType::LC3;
+    case setting::CodecType::APTX_ADAPTIVE_LE:
+      return CodecType::APTX_ADAPTIVE_LE;
+    case setting::CodecType::APTX_ADAPTIVE_LEX:
+      return CodecType::APTX_ADAPTIVE_LEX;
+    default:
+      return CodecType::UNKNOWN;
+  }
+}
+
+bool BluetoothLeAudioCodecsProvider::IsValidCodecConfiguration(
+    const setting::CodecConfiguration& codec_configuration) {
+  return codec_configuration.hasName() && codec_configuration.hasCodec() &&
+         codec_configuration.hasSamplingFrequency() &&
+         codec_configuration.hasFrameDurationUs() &&
+         codec_configuration.hasOctetsPerCodecFrame();
+}
+
+bool BluetoothLeAudioCodecsProvider::IsValidStrategyConfiguration(
+    const setting::StrategyConfiguration& strategy_configuration) {
+  if (!strategy_configuration.hasName() ||
+      !strategy_configuration.hasAudioLocation() ||
+      !strategy_configuration.hasConnectedDevice() ||
+      !strategy_configuration.hasChannelCount()) {
+    return false;
+  }
+  if (strategy_configuration.getAudioLocation() ==
+      setting::AudioLocation::STEREO) {
+    if ((strategy_configuration.getConnectedDevice() == 2 &&
+         strategy_configuration.getChannelCount() == 1) ||
+        (strategy_configuration.getConnectedDevice() == 1 &&
+         strategy_configuration.getChannelCount() == 2)) {
+      // Stereo
+      // 1. two connected device, one for L one for R
+      // 2. one connected device for both L and R
+      return true;
+    } else if (strategy_configuration.getConnectedDevice() == 0 &&
+               strategy_configuration.getChannelCount() == 2) {
+      // Broadcast
+      return true;
+    }
+  } else if (strategy_configuration.getAudioLocation() ==
+             setting::AudioLocation::MONO) {
+    if (strategy_configuration.getConnectedDevice() == 1 &&
+        strategy_configuration.getChannelCount() == 1) {
+      // Mono
+      return true;
+    }
+  }
+  return false;
+}
+
+}  // namespace audio
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl

bluetooth/audio/utils/aidl_session/BluetoothLeAudioCodecsProvider.h

@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/bluetooth/audio/LeAudioCodecCapabilitiesSetting.h>
+#include <android-base/logging.h>
+
+#include <unordered_map>
+#include <vector>
+
+#include "aidl/android/hardware/bluetooth/audio/CodecInfo.h"
+#include "aidl/android/hardware/bluetooth/audio/SessionType.h"
+#include "aidl_android_hardware_bluetooth_audio_setting.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace audio {
+
+class BluetoothLeAudioCodecsProvider {
+ public:
+  static std::optional<setting::LeAudioOffloadSetting>
+  ParseFromLeAudioOffloadSettingFile();
+  static std::vector<LeAudioCodecCapabilitiesSetting>
+  GetLeAudioCodecCapabilities(
+      const std::optional<setting::LeAudioOffloadSetting>&
+          le_audio_offload_setting);
+  static void ClearLeAudioCodecCapabilities();
+  static std::unordered_map<SessionType, std::vector<CodecInfo>>
+  GetLeAudioCodecInfo(const std::optional<setting::LeAudioOffloadSetting>&
+                          le_audio_offload_setting);
+
+ private:
+  static inline std::vector<setting::Scenario> supported_scenarios_;
+  static inline std::unordered_map<std::string, setting::Configuration>
+      configuration_map_;
+  static inline std::unordered_map<std::string, setting::CodecConfiguration>
+      codec_configuration_map_;
+  static inline std::unordered_map<std::string, setting::StrategyConfiguration>
+      strategy_configuration_map_;
+  static inline std::unordered_map<SessionType, std::vector<CodecInfo>>
+      session_codecs_map_;
+
+  static std::vector<setting::Scenario> GetScenarios(
+      const std::optional<setting::LeAudioOffloadSetting>&
+          le_audio_offload_setting);
+  static void UpdateConfigurationsToMap(
+      const std::optional<setting::LeAudioOffloadSetting>&
+          le_audio_offload_setting);
+  static void UpdateCodecConfigurationsToMap(
+      const std::optional<setting::LeAudioOffloadSetting>&
+          le_audio_offload_setting);
+  static void UpdateStrategyConfigurationsToMap(
+      const std::optional<setting::LeAudioOffloadSetting>&
+          le_audio_offload_setting);
+  static void LoadConfigurationToMap(
+      const std::optional<setting::LeAudioOffloadSetting>&
+          le_audio_offload_setting);
+
+  static std::vector<LeAudioCodecCapabilitiesSetting>
+  ComposeLeAudioCodecCapabilities(
+      const std::vector<setting::Scenario>& supported_scenarios);
+
+  static UnicastCapability GetUnicastCapability(
+      const std::string& coding_direction);
+  static BroadcastCapability GetBroadcastCapability(
+      const std::string& coding_direction);
+
+  template <class T>
+  static inline UnicastCapability ComposeUnicastCapability(
+      const CodecType& codec_type, const AudioLocation& audio_location,
+      const uint8_t& device_cnt, const uint8_t& channel_count,
+      const T& capability);
+
+  template <class T>
+  static inline BroadcastCapability ComposeBroadcastCapability(
+      const CodecType& codec_type, const AudioLocation& audio_location,
+      const uint8_t& channel_count, const std::vector<T>& capability);
+
+  static inline Lc3Capabilities ComposeLc3Capability(
+      const setting::CodecConfiguration& codec_configuration);
+
+  static inline AptxAdaptiveLeCapabilities ComposeAptxAdaptiveLeCapability(
+      const setting::CodecConfiguration& codec_configuration);
+
+  static inline AudioLocation GetAudioLocation(
+      const setting::AudioLocation& audio_location);
+  static inline CodecType GetCodecType(const setting::CodecType& codec_type);
+
+  static inline bool IsValidCodecConfiguration(
+      const setting::CodecConfiguration& codec_configuration);
+  static inline bool IsValidStrategyConfiguration(
+      const setting::StrategyConfiguration& strategy_configuration);
+};
+
+}  // namespace audio
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl

bluetooth/audio/utils/aidl_session/BluetoothLeAudioCodecsProviderTest.cpp

@@ -0,0 +1,383 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+#include <optional>
+#include <tuple>
+
+#include "BluetoothLeAudioCodecsProvider.h"
+
+using aidl::android::hardware::bluetooth::audio::BluetoothLeAudioCodecsProvider;
+using aidl::android::hardware::bluetooth::audio::
+    LeAudioCodecCapabilitiesSetting;
+using aidl::android::hardware::bluetooth::audio::setting::AudioLocation;
+using aidl::android::hardware::bluetooth::audio::setting::CodecConfiguration;
+using aidl::android::hardware::bluetooth::audio::setting::
+    CodecConfigurationList;
+using aidl::android::hardware::bluetooth::audio::setting::CodecType;
+using aidl::android::hardware::bluetooth::audio::setting::Configuration;
+using aidl::android::hardware::bluetooth::audio::setting::ConfigurationList;
+using aidl::android::hardware::bluetooth::audio::setting::LeAudioOffloadSetting;
+using aidl::android::hardware::bluetooth::audio::setting::Scenario;
+using aidl::android::hardware::bluetooth::audio::setting::ScenarioList;
+using aidl::android::hardware::bluetooth::audio::setting::StrategyConfiguration;
+using aidl::android::hardware::bluetooth::audio::setting::
+    StrategyConfigurationList;
+
+typedef std::tuple<std::vector<ScenarioList>, std::vector<ConfigurationList>,
+                   std::vector<CodecConfigurationList>,
+                   std::vector<StrategyConfigurationList>>
+    OffloadSetting;
+
+// Define valid components for each list
+// Scenario
+static const Scenario kValidScenario(std::make_optional("OneChanStereo_16_1"),
+                                     std::make_optional("OneChanStereo_16_1"),
+                                     std::nullopt);
+static const Scenario kValidBroadcastScenario(
+    std::nullopt, std::nullopt, std::make_optional("BcastStereo_16_2"));
+
+// Configuration
+static const Configuration kValidConfigOneChanStereo_16_1(
+    std::make_optional("OneChanStereo_16_1"), std::make_optional("LC3_16k_1"),
+    std::make_optional("STEREO_ONE_CIS_PER_DEVICE"));
+// CodecConfiguration
+static const CodecConfiguration kValidCodecLC3_16k_1(
+    std::make_optional("LC3_16k_1"), std::make_optional(CodecType::LC3),
+    std::nullopt, std::make_optional(16000), std::make_optional(7500),
+    std::make_optional(30), std::nullopt);
+// StrategyConfiguration
+static const StrategyConfiguration kValidStrategyStereoOneCis(
+    std::make_optional("STEREO_ONE_CIS_PER_DEVICE"),
+    std::make_optional(AudioLocation::STEREO), std::make_optional(2),
+    std::make_optional(1));
+static const StrategyConfiguration kValidStrategyStereoTwoCis(
+    std::make_optional("STEREO_TWO_CISES_PER_DEVICE"),
+    std::make_optional(AudioLocation::STEREO), std::make_optional(1),
+    std::make_optional(2));
+static const StrategyConfiguration kValidStrategyMonoOneCis(
+    std::make_optional("MONO_ONE_CIS_PER_DEVICE"),
+    std::make_optional(AudioLocation::MONO), std::make_optional(1),
+    std::make_optional(1));
+static const StrategyConfiguration kValidStrategyBroadcastStereo(
+    std::make_optional("BROADCAST_STEREO"),
+    std::make_optional(AudioLocation::STEREO), std::make_optional(0),
+    std::make_optional(2));
+
+// Define valid test list built from above valid components
+// Scenario, Configuration, CodecConfiguration, StrategyConfiguration
+static const std::vector<ScenarioList> kValidScenarioList = {ScenarioList(
+    std::vector<Scenario>{kValidScenario, kValidBroadcastScenario})};
+static const std::vector<ConfigurationList> kValidConfigurationList = {
+    ConfigurationList(
+        std::vector<Configuration>{kValidConfigOneChanStereo_16_1})};
+static const std::vector<CodecConfigurationList> kValidCodecConfigurationList =
+    {CodecConfigurationList(
+        std::vector<CodecConfiguration>{kValidCodecLC3_16k_1})};
+static const std::vector<StrategyConfigurationList>
+    kValidStrategyConfigurationList = {
+        StrategyConfigurationList(std::vector<StrategyConfiguration>{
+            kValidStrategyStereoOneCis, kValidStrategyStereoTwoCis,
+            kValidStrategyMonoOneCis, kValidStrategyBroadcastStereo})};
+
+class BluetoothLeAudioCodecsProviderTest
+    : public ::testing::TestWithParam<OffloadSetting> {
+ public:
+  static std::vector<OffloadSetting> CreateTestCases(
+      const std::vector<ScenarioList>& scenario_lists,
+      const std::vector<ConfigurationList>& configuration_lists,
+      const std::vector<CodecConfigurationList>& codec_configuration_lists,
+      const std::vector<StrategyConfigurationList>&
+          strategy_configuration_lists) {
+    // make each vector in output test_cases has only one element
+    // to match the input of test params
+    // normally only one vector in input has multiple elements
+    // we just split elements in this vector to several vector
+    std::vector<OffloadSetting> test_cases;
+    for (const auto& scenario_list : scenario_lists) {
+      for (const auto& configuration_list : configuration_lists) {
+        for (const auto& codec_configuration_list : codec_configuration_lists) {
+          for (const auto& strategy_configuration_list :
+               strategy_configuration_lists) {
+            test_cases.push_back(CreateTestCase(
+                scenario_list, configuration_list, codec_configuration_list,
+                strategy_configuration_list));
+          }
+        }
+      }
+    }
+    return test_cases;
+  }
+
+ protected:
+  void Initialize() {
+    BluetoothLeAudioCodecsProvider::ClearLeAudioCodecCapabilities();
+  }
+
+  std::vector<LeAudioCodecCapabilitiesSetting> RunTestCase() {
+    auto& [scenario_lists, configuration_lists, codec_configuration_lists,
+           strategy_configuration_lists] = GetParam();
+    LeAudioOffloadSetting le_audio_offload_setting(
+        scenario_lists, configuration_lists, codec_configuration_lists,
+        strategy_configuration_lists);
+    auto le_audio_codec_capabilities =
+        BluetoothLeAudioCodecsProvider::GetLeAudioCodecCapabilities(
+            std::make_optional(le_audio_offload_setting));
+    return le_audio_codec_capabilities;
+  }
+
+ private:
+  static inline OffloadSetting CreateTestCase(
+      const ScenarioList& scenario_list,
+      const ConfigurationList& configuration_list,
+      const CodecConfigurationList& codec_configuration_list,
+      const StrategyConfigurationList& strategy_configuration_list) {
+    return std::make_tuple(
+        std::vector<ScenarioList>{scenario_list},
+        std::vector<ConfigurationList>{configuration_list},
+        std::vector<CodecConfigurationList>{codec_configuration_list},
+        std::vector<StrategyConfigurationList>{strategy_configuration_list});
+  }
+};
+
+class GetScenariosTest : public BluetoothLeAudioCodecsProviderTest {
+ public:
+  static std::vector<ScenarioList> CreateInvalidScenarios() {
+    std::vector<ScenarioList> invalid_scenario_test_cases;
+    invalid_scenario_test_cases.push_back(ScenarioList(std::vector<Scenario>{
+        Scenario(std::nullopt, std::make_optional("OneChanStereo_16_1"),
+                 std::nullopt)}));
+
+    invalid_scenario_test_cases.push_back(ScenarioList(
+        std::vector<Scenario>{Scenario(std::make_optional("OneChanStereo_16_1"),
+                                       std::nullopt, std::nullopt)}));
+
+    invalid_scenario_test_cases.push_back(ScenarioList(std::vector<Scenario>{
+        Scenario(std::nullopt, std::nullopt, std::nullopt)}));
+
+    invalid_scenario_test_cases.push_back(
+        ScenarioList(std::vector<Scenario>{}));
+
+    return invalid_scenario_test_cases;
+  }
+};
+
+TEST_P(GetScenariosTest, InvalidScenarios) {
+  Initialize();
+  auto le_audio_codec_capabilities = RunTestCase();
+  ASSERT_TRUE(le_audio_codec_capabilities.empty());
+}
+
+class UpdateConfigurationsToMapTest
+    : public BluetoothLeAudioCodecsProviderTest {
+ public:
+  static std::vector<ConfigurationList> CreateInvalidConfigurations() {
+    std::vector<ConfigurationList> invalid_configuration_test_cases;
+    invalid_configuration_test_cases.push_back(
+        ConfigurationList(std::vector<Configuration>{
+            Configuration(std::nullopt, std::make_optional("LC3_16k_1"),
+                          std::make_optional("STEREO_ONE_CIS_PER_DEVICE"))}));
+
+    invalid_configuration_test_cases.push_back(
+        ConfigurationList(std::vector<Configuration>{Configuration(
+            std::make_optional("OneChanStereo_16_1"), std::nullopt,
+            std::make_optional("STEREO_ONE_CIS_PER_DEVICE"))}));
+
+    invalid_configuration_test_cases.push_back(
+        ConfigurationList(std::vector<Configuration>{
+            Configuration(std::make_optional("OneChanStereo_16_1"),
+                          std::make_optional("LC3_16k_1"), std::nullopt)}));
+
+    invalid_configuration_test_cases.push_back(
+        ConfigurationList(std::vector<Configuration>{}));
+
+    return invalid_configuration_test_cases;
+  }
+};
+
+TEST_P(UpdateConfigurationsToMapTest, InvalidConfigurations) {
+  Initialize();
+  auto le_audio_codec_capabilities = RunTestCase();
+  ASSERT_TRUE(le_audio_codec_capabilities.empty());
+}
+
+class UpdateCodecConfigurationsToMapTest
+    : public BluetoothLeAudioCodecsProviderTest {
+ public:
+  static std::vector<CodecConfigurationList>
+  CreateInvalidCodecConfigurations() {
+    std::vector<CodecConfigurationList> invalid_codec_configuration_test_cases;
+    invalid_codec_configuration_test_cases.push_back(CodecConfigurationList(
+        std::vector<CodecConfiguration>{CodecConfiguration(
+            std::nullopt, std::make_optional(CodecType::LC3), std::nullopt,
+            std::make_optional(16000), std::make_optional(7500),
+            std::make_optional(30), std::nullopt)}));
+
+    invalid_codec_configuration_test_cases.push_back(CodecConfigurationList(
+        std::vector<CodecConfiguration>{CodecConfiguration(
+            std::make_optional("LC3_16k_1"), std::nullopt, std::nullopt,
+            std::make_optional(16000), std::make_optional(7500),
+            std::make_optional(30), std::nullopt)}));
+
+    invalid_codec_configuration_test_cases.push_back(CodecConfigurationList(
+        std::vector<CodecConfiguration>{CodecConfiguration(
+            std::make_optional("LC3_16k_1"), std::make_optional(CodecType::LC3),
+            std::nullopt, std::nullopt, std::make_optional(7500),
+            std::make_optional(30), std::nullopt)}));
+
+    invalid_codec_configuration_test_cases.push_back(CodecConfigurationList(
+        std::vector<CodecConfiguration>{CodecConfiguration(
+            std::make_optional("LC3_16k_1"), std::make_optional(CodecType::LC3),
+            std::nullopt, std::make_optional(16000), std::nullopt,
+            std::make_optional(30), std::nullopt)}));
+
+    invalid_codec_configuration_test_cases.push_back(CodecConfigurationList(
+        std::vector<CodecConfiguration>{CodecConfiguration(
+            std::make_optional("LC3_16k_1"), std::make_optional(CodecType::LC3),
+            std::nullopt, std::make_optional(16000), std::make_optional(7500),
+            std::nullopt, std::nullopt)}));
+
+    invalid_codec_configuration_test_cases.push_back(
+        CodecConfigurationList(std::vector<CodecConfiguration>{}));
+
+    return invalid_codec_configuration_test_cases;
+  }
+};
+
+TEST_P(UpdateCodecConfigurationsToMapTest, InvalidCodecConfigurations) {
+  Initialize();
+  auto le_audio_codec_capabilities = RunTestCase();
+  ASSERT_TRUE(le_audio_codec_capabilities.empty());
+}
+
+class UpdateStrategyConfigurationsToMapTest
+    : public BluetoothLeAudioCodecsProviderTest {
+ public:
+  static std::vector<StrategyConfigurationList>
+  CreateInvalidStrategyConfigurations() {
+    std::vector<StrategyConfigurationList>
+        invalid_strategy_configuration_test_cases;
+    invalid_strategy_configuration_test_cases.push_back(
+        StrategyConfigurationList(
+            std::vector<StrategyConfiguration>{StrategyConfiguration(
+                std::make_optional("STEREO_ONE_CIS_PER_DEVICE"),
+                std::make_optional(AudioLocation::STEREO),
+                std::make_optional(2), std::make_optional(2))}));
+
+    invalid_strategy_configuration_test_cases.push_back(
+        StrategyConfigurationList(
+            std::vector<StrategyConfiguration>{StrategyConfiguration(
+                std::make_optional("MONO_ONE_CIS_PER_DEVICE"),
+                std::make_optional(AudioLocation::STEREO),
+                std::make_optional(2), std::make_optional(2))}));
+
+    invalid_strategy_configuration_test_cases.push_back(
+        StrategyConfigurationList(
+            std::vector<StrategyConfiguration>{StrategyConfiguration(
+                std::nullopt, std::make_optional(AudioLocation::STEREO),
+                std::make_optional(2), std::make_optional(1))}));
+
+    invalid_strategy_configuration_test_cases.push_back(
+        StrategyConfigurationList(
+            std::vector<StrategyConfiguration>{StrategyConfiguration(
+                std::make_optional("STEREO_ONE_CIS_PER_DEVICE"), std::nullopt,
+                std::make_optional(2), std::make_optional(1))}));
+
+    invalid_strategy_configuration_test_cases.push_back(
+        StrategyConfigurationList(
+            std::vector<StrategyConfiguration>{StrategyConfiguration(
+                std::make_optional("STEREO_ONE_CIS_PER_DEVICE"),
+                std::make_optional(AudioLocation::STEREO), std::nullopt,
+                std::make_optional(1))}));
+
+    invalid_strategy_configuration_test_cases.push_back(
+        StrategyConfigurationList(
+            std::vector<StrategyConfiguration>{StrategyConfiguration(
+                std::make_optional("STEREO_ONE_CIS_PER_DEVICE"),
+                std::make_optional(AudioLocation::STEREO),
+                std::make_optional(2), std::nullopt)}));
+
+    invalid_strategy_configuration_test_cases.push_back(
+        StrategyConfigurationList(std::vector<StrategyConfiguration>{}));
+
+    return invalid_strategy_configuration_test_cases;
+  }
+};
+
+TEST_P(UpdateStrategyConfigurationsToMapTest, InvalidStrategyConfigurations) {
+  Initialize();
+  auto le_audio_codec_capabilities = RunTestCase();
+  ASSERT_TRUE(le_audio_codec_capabilities.empty());
+}
+
+class ComposeLeAudioCodecCapabilitiesTest
+    : public BluetoothLeAudioCodecsProviderTest {
+ public:
+};
+
+TEST_P(ComposeLeAudioCodecCapabilitiesTest, CodecCapabilitiesNotEmpty) {
+  Initialize();
+  auto le_audio_codec_capabilities = RunTestCase();
+  ASSERT_TRUE(!le_audio_codec_capabilities.empty());
+}
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(GetScenariosTest);
+INSTANTIATE_TEST_SUITE_P(
+    BluetoothLeAudioCodecsProviderTest, GetScenariosTest,
+    ::testing::ValuesIn(BluetoothLeAudioCodecsProviderTest::CreateTestCases(
+        GetScenariosTest::CreateInvalidScenarios(), kValidConfigurationList,
+        kValidCodecConfigurationList, kValidStrategyConfigurationList)));
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(UpdateConfigurationsToMapTest);
+INSTANTIATE_TEST_SUITE_P(
+    BluetoothLeAudioCodecsProviderTest, UpdateConfigurationsToMapTest,
+    ::testing::ValuesIn(BluetoothLeAudioCodecsProviderTest::CreateTestCases(
+        kValidScenarioList,
+        UpdateConfigurationsToMapTest::CreateInvalidConfigurations(),
+        kValidCodecConfigurationList, kValidStrategyConfigurationList)));
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    UpdateCodecConfigurationsToMapTest);
+INSTANTIATE_TEST_SUITE_P(
+    BluetoothLeAudioCodecsProviderTest, UpdateCodecConfigurationsToMapTest,
+    ::testing::ValuesIn(BluetoothLeAudioCodecsProviderTest::CreateTestCases(
+        kValidScenarioList, kValidConfigurationList,
+        UpdateCodecConfigurationsToMapTest::CreateInvalidCodecConfigurations(),
+        kValidStrategyConfigurationList)));
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    UpdateStrategyConfigurationsToMapTest);
+INSTANTIATE_TEST_SUITE_P(
+    BluetoothLeAudioCodecsProviderTest, UpdateStrategyConfigurationsToMapTest,
+    ::testing::ValuesIn(BluetoothLeAudioCodecsProviderTest::CreateTestCases(
+        kValidScenarioList, kValidConfigurationList,
+        kValidCodecConfigurationList,
+        UpdateStrategyConfigurationsToMapTest::
+            CreateInvalidStrategyConfigurations())));
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+    ComposeLeAudioCodecCapabilitiesTest);
+INSTANTIATE_TEST_SUITE_P(
+    BluetoothLeAudioCodecsProviderTest, ComposeLeAudioCodecCapabilitiesTest,
+    ::testing::ValuesIn(BluetoothLeAudioCodecsProviderTest::CreateTestCases(
+        kValidScenarioList, kValidConfigurationList,
+        kValidCodecConfigurationList, kValidStrategyConfigurationList)));
+
+int main(int argc, char** argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}

bluetooth/audio/utils/aidl_session/HidlToAidlMiddleware.cpp

@@ -467,6 +467,8 @@ inline AudioConfig_2_1 to_hidl_audio_config_2_1(
       hidl_audio_config.codecConfig(to_hidl_codec_config_2_0(
           audio_config.get<AudioConfiguration::a2dpConfig>()));
       break;
+    case AudioConfiguration::a2dp:
+      break;
     case AudioConfiguration::leAudioConfig:
       hidl_audio_config.leAudioCodecConfig(to_hidl_leaudio_config_2_1(
           audio_config.get<AudioConfiguration::leAudioConfig>()));
@@ -475,6 +477,8 @@ inline AudioConfig_2_1 to_hidl_audio_config_2_1(
       hidl_audio_config.leAudioCodecConfig(to_hidl_leaudio_broadcast_config_2_1(
           audio_config.get<AudioConfiguration::leAudioBroadcastConfig>()));
       break;
+    default:
+      LOG(FATAL) << __func__ << ": unexpected AudioConfiguration";
   }
   return hidl_audio_config;
 }
@@ -583,7 +587,7 @@ bool HidlToAidlMiddleware_2_0::GetPresentationPosition(
     *total_bytes_readed = presentation_position.transmittedOctets;
   if (data_position)
     *data_position = {
-        .tv_sec = static_cast<__kernel_old_time_t>(
+        .tv_sec = static_cast<long>(
             presentation_position.transmittedOctetsTimestamp.tvSec),
         .tv_nsec = static_cast<long>(
             presentation_position.transmittedOctetsTimestamp.tvNSec)};

bluetooth/audio/utils/le_audio_codec_capabilities/le_audio_codec_capabilities.xml

@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!---
+  This is an example to configure LE Audio hardware offload supported capability settings
+  In the follow list, there would be only one list in this file. Add element into each list as needed.
+
+  codecConfigurationList:
+    Supported codec capability along with its parameter setting
+
+  strategyConfigurationList:
+     ASE Configuration strategies
+
+  configurationList:
+    For each configuration , there are two attributes
+      - codecConfiguration
+      - strategyConfiguration
+
+  scenarioList:
+    There would be only one `scenarios` group
+    For each scenario, the are two attributes
+      - encode
+      - decode
+    If a scenario is unidirectional, mark another direction as `invalid`
+    The configuration should be chosen from `configurationList`
+-->
+<leAudioOffloadSetting>
+  <scenarioList>
+    <!-- encode only -->
+    <scenario encode="OneChanMono_16_1" decode="invalid"/>
+    <scenario encode="TwoChanStereo_16_1" decode="invalid"/>
+    <scenario encode="OneChanStereo_16_1" decode="invalid"/>
+    <scenario encode="OneChanMono_16_2" decode="invalid"/>
+    <scenario encode="TwoChanStereo_16_2" decode="invalid"/>
+    <scenario encode="OneChanStereo_16_2" decode="invalid"/>
+    <scenario encode="APEX_ADAPTIVE_LE_TwoChanStereo_48" decode="invalid"/>
+    <scenario encode="APEX_ADAPTIVE_LE_TwoChanStereo_96" decode="invalid"/>
+    <scenario encode="APEX_ADAPTIVE_LEX_TwoChanStereo_48" decode="invalid"/>
+    <scenario encode="APEX_ADAPTIVE_LEX_TwoChanStereo_96" decode="invalid"/>
+    <!-- encode and decode -->
+    <scenario encode="OneChanStereo_16_1" decode="OneChanStereo_16_1"/>
+    <scenario encode="OneChanStereo_16_1" decode="OneChanMono_16_1"/>
+    <scenario encode="TwoChanStereo_16_1" decode="OneChanMono_16_1"/>
+    <scenario encode="OneChanMono_16_1" decode="OneChanMono_16_1"/>
+    <scenario encode="OneChanStereo_16_2" decode="OneChanStereo_16_2"/>
+    <scenario encode="OneChanStereo_16_2" decode="OneChanMono_16_2"/>
+    <scenario encode="TwoChanStereo_16_2" decode="OneChanMono_16_2"/>
+    <scenario encode="OneChanMono_16_2" decode="OneChanMono_16_2"/>
+    <!-- broadcast -->
+    <scenario encode="invalid" decode="invalid" broadcast="BcastStereo_16_2"/>
+  </scenarioList>
+  <configurationList>
+    <configuration name="OneChanMono_16_1" codecConfiguration="LC3_16k_1" strategyConfiguration="MONO_ONE_CIS_PER_DEVICE"/>
+    <configuration name="TwoChanStereo_16_1" codecConfiguration="LC3_16k_1" strategyConfiguration="STEREO_TWO_CISES_PER_DEVICE"/>
+    <configuration name="OneChanStereo_16_1" codecConfiguration="LC3_16k_1" strategyConfiguration="STEREO_ONE_CIS_PER_DEVICE"/>
+    <configuration name="OneChanMono_16_2" codecConfiguration="LC3_16k_2" strategyConfiguration="MONO_ONE_CIS_PER_DEVICE"/>
+    <configuration name="TwoChanStereo_16_2" codecConfiguration="LC3_16k_2" strategyConfiguration="STEREO_TWO_CISES_PER_DEVICE"/>
+    <configuration name="OneChanStereo_16_2" codecConfiguration="LC3_16k_2" strategyConfiguration="STEREO_ONE_CIS_PER_DEVICE"/>
+    <configuration name="BcastStereo_16_2" codecConfiguration="LC3_16k_2" strategyConfiguration="BROADCAST_STEREO"/>
+    <configuration name="APEX_ADAPTIVE_LE_TwoChanStereo_48" codecConfiguration="APTX_ADAPTIVE_LE_48k" strategyConfiguration="STEREO_TWO_CISES_PER_DEVICE"/>
+    <configuration name="APEX_ADAPTIVE_LE_TwoChanStereo_96" codecConfiguration="APTX_ADAPTIVE_LE_96k" strategyConfiguration="STEREO_TWO_CISES_PER_DEVICE"/>
+    <configuration name="APEX_ADAPTIVE_LEX_TwoChanStereo_48" codecConfiguration="APTX_ADAPTIVE_LEX_48k" strategyConfiguration="STEREO_TWO_CISES_PER_DEVICE"/>
+    <configuration name="APEX_ADAPTIVE_LEX_TwoChanStereo_96" codecConfiguration="APTX_ADAPTIVE_LEX_96k" strategyConfiguration="STEREO_TWO_CISES_PER_DEVICE"/>
+  </configurationList>
+  <codecConfigurationList>
+    <codecConfiguration name="LC3_16k_1" codec="LC3" samplingFrequency="16000" frameDurationUs="7500" octetsPerCodecFrame="30"/>
+    <codecConfiguration name="LC3_16k_2" codec="LC3" samplingFrequency="16000" frameDurationUs="10000" octetsPerCodecFrame="40"/>
+    <codecConfiguration name="APTX_ADAPTIVE_LE_48k" codec="APTX_ADAPTIVE_LE" samplingFrequency="48000" frameDurationUs="10000" octetsPerCodecFrame="816"/>
+    <codecConfiguration name="APTX_ADAPTIVE_LE_96k" codec="APTX_ADAPTIVE_LE" samplingFrequency="96000" frameDurationUs="10000" octetsPerCodecFrame="816"/>
+    <codecConfiguration name="APTX_ADAPTIVE_LEX_48k" codec="APTX_ADAPTIVE_LEX" samplingFrequency="48000" frameDurationUs="10000" octetsPerCodecFrame="816"/>
+    <codecConfiguration name="APTX_ADAPTIVE_LEX_96k" codec="APTX_ADAPTIVE_LEX" samplingFrequency="96000" frameDurationUs="10000" octetsPerCodecFrame="816"/>
+  </codecConfigurationList>
+  <strategyConfigurationList>
+    <strategyConfiguration name="STEREO_ONE_CIS_PER_DEVICE" audioLocation="STEREO" connectedDevice="2" channelCount="1"/>
+    <strategyConfiguration name="STEREO_TWO_CISES_PER_DEVICE" audioLocation="STEREO" connectedDevice="1" channelCount="2"/>
+    <strategyConfiguration name="MONO_ONE_CIS_PER_DEVICE" audioLocation="MONO" connectedDevice="1" channelCount="1"/>
+    <strategyConfiguration name="BROADCAST_STEREO" audioLocation="STEREO" connectedDevice="0" channelCount="2"/>
+  </strategyConfigurationList>
+</leAudioOffloadSetting>

bluetooth/audio/utils/le_audio_codec_capabilities/le_audio_codec_capabilities.xsd

@@ -0,0 +1,77 @@
+<!-- LE Audio Offload Codec Capability Schema -->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
+  <xs:element name="leAudioOffloadSetting">
+    <xs:complexType>
+      <xs:element ref="scenarioList" minOccurs="1" maxOccurs="1"/>
+      <xs:element ref="configurationList" minOccurs="1" maxOccurs="1"/>
+      <xs:element ref="codecConfigurationList" minOccurs="1" maxOccurs="1"/>
+      <xs:element ref="strategyConfigurationList" minOccurs="1" maxOccurs="1"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="scenarioList">
+    <xs:complexType>
+      <xs:element ref="scenario" minOccurs="1" maxOccurs="unbounded"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="configurationList">
+    <xs:complexType>
+      <xs:element ref="configuration" minOccurs="1" maxOccurs="unbounded"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="codecConfigurationList">
+    <xs:complexType>
+      <xs:element ref="codecConfiguration" minOccurs="1" maxOccurs="unbounded"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="strategyConfigurationList">
+    <xs:complexType>
+      <xs:element ref="strategyConfiguration" minOccurs="1" maxOccurs="unbounded"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="scenario">
+    <xs:complexType>
+      <xs:attribute name="encode" type="xs:string"/>
+      <xs:attribute name="decode" type="xs:string"/>
+      <xs:attribute name="broadcast" type="xs:string"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="configuration">
+    <xs:complexType>
+      <xs:attribute name="name" type="xs:string"/>
+      <xs:attribute name="codecConfiguration" type="xs:string"/>
+      <xs:attribute name="strategyConfiguration" type="xs:string"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="codecConfiguration">
+    <xs:complexType>
+      <xs:attribute name="name" type="xs:string"/>
+      <xs:attribute name="codec" type="codecType"/>
+      <xs:attribute name="pcmBitDepth" type="xs:unsignedByte"/>
+      <xs:attribute name="samplingFrequency" type="xs:int"/>
+      <xs:attribute name="frameDurationUs" type="xs:int"/>
+      <xs:attribute name="octetsPerCodecFrame" type="xs:int"/>
+      <xs:attribute name="codecFrameBlocksPerSdu" type="xs:unsignedByte"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:element name="strategyConfiguration">
+    <xs:complexType>
+      <xs:attribute name="name" type="xs:string"/>
+      <xs:attribute name="audioLocation" type="audioLocation"/>
+      <xs:attribute name="connectedDevice" type="xs:unsignedByte"/>
+      <xs:attribute name="channelCount" type="xs:unsignedByte"/>
+    </xs:complexType>
+  </xs:element>
+  <xs:simpleType name="audioLocation">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="MONO"/>
+      <xs:enumeration value="STEREO"/>
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="codecType">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="LC3"/>
+      <xs:enumeration value="APTX_ADAPTIVE_LE"/>
+      <xs:enumeration value="APTX_ADAPTIVE_LEX"/>
+    </xs:restriction>
+  </xs:simpleType>
+</xs:schema>

bluetooth/audio/utils/le_audio_codec_capabilities/schema/current.txt

@@ -0,0 +1,107 @@
+// Signature format: 2.0
+package aidl.android.hardware.bluetooth.audio.setting {
+
+  public enum AudioLocation {
+    method public String getRawName();
+    enum_constant public static final aidl.android.hardware.bluetooth.audio.setting.AudioLocation MONO;
+    enum_constant public static final aidl.android.hardware.bluetooth.audio.setting.AudioLocation STEREO;
+  }
+
+  public class CodecConfiguration {
+    ctor public CodecConfiguration();
+    method public aidl.android.hardware.bluetooth.audio.setting.CodecType getCodec();
+    method public short getCodecFrameBlocksPerSdu();
+    method public int getFrameDurationUs();
+    method public String getName();
+    method public int getOctetsPerCodecFrame();
+    method public short getPcmBitDepth();
+    method public int getSamplingFrequency();
+    method public void setCodec(aidl.android.hardware.bluetooth.audio.setting.CodecType);
+    method public void setCodecFrameBlocksPerSdu(short);
+    method public void setFrameDurationUs(int);
+    method public void setName(String);
+    method public void setOctetsPerCodecFrame(int);
+    method public void setPcmBitDepth(short);
+    method public void setSamplingFrequency(int);
+  }
+
+  public class CodecConfigurationList {
+    ctor public CodecConfigurationList();
+    method public java.util.List<aidl.android.hardware.bluetooth.audio.setting.CodecConfiguration> getCodecConfiguration();
+  }
+
+  public enum CodecType {
+    method public String getRawName();
+    enum_constant public static final aidl.android.hardware.bluetooth.audio.setting.CodecType APTX_ADAPTIVE_LE;
+    enum_constant public static final aidl.android.hardware.bluetooth.audio.setting.CodecType APTX_ADAPTIVE_LEX;
+    enum_constant public static final aidl.android.hardware.bluetooth.audio.setting.CodecType LC3;
+  }
+
+  public class Configuration {
+    ctor public Configuration();
+    method public String getCodecConfiguration();
+    method public String getName();
+    method public String getStrategyConfiguration();
+    method public void setCodecConfiguration(String);
+    method public void setName(String);
+    method public void setStrategyConfiguration(String);
+  }
+
+  public class ConfigurationList {
+    ctor public ConfigurationList();
+    method public java.util.List<aidl.android.hardware.bluetooth.audio.setting.Configuration> getConfiguration();
+  }
+
+  public class LeAudioOffloadSetting {
+    ctor public LeAudioOffloadSetting();
+    method public aidl.android.hardware.bluetooth.audio.setting.CodecConfigurationList getCodecConfigurationList();
+    method public aidl.android.hardware.bluetooth.audio.setting.ConfigurationList getConfigurationList();
+    method public aidl.android.hardware.bluetooth.audio.setting.ScenarioList getScenarioList();
+    method public aidl.android.hardware.bluetooth.audio.setting.StrategyConfigurationList getStrategyConfigurationList();
+    method public void setCodecConfigurationList(aidl.android.hardware.bluetooth.audio.setting.CodecConfigurationList);
+    method public void setConfigurationList(aidl.android.hardware.bluetooth.audio.setting.ConfigurationList);
+    method public void setScenarioList(aidl.android.hardware.bluetooth.audio.setting.ScenarioList);
+    method public void setStrategyConfigurationList(aidl.android.hardware.bluetooth.audio.setting.StrategyConfigurationList);
+  }
+
+  public class Scenario {
+    ctor public Scenario();
+    method public String getBroadcast();
+    method public String getDecode();
+    method public String getEncode();
+    method public void setBroadcast(String);
+    method public void setDecode(String);
+    method public void setEncode(String);
+  }
+
+  public class ScenarioList {
+    ctor public ScenarioList();
+    method public java.util.List<aidl.android.hardware.bluetooth.audio.setting.Scenario> getScenario();
+  }
+
+  public class StrategyConfiguration {
+    ctor public StrategyConfiguration();
+    method public aidl.android.hardware.bluetooth.audio.setting.AudioLocation getAudioLocation();
+    method public short getChannelCount();
+    method public short getConnectedDevice();
+    method public String getName();
+    method public void setAudioLocation(aidl.android.hardware.bluetooth.audio.setting.AudioLocation);
+    method public void setChannelCount(short);
+    method public void setConnectedDevice(short);
+    method public void setName(String);
+  }
+
+  public class StrategyConfigurationList {
+    ctor public StrategyConfigurationList();
+    method public java.util.List<aidl.android.hardware.bluetooth.audio.setting.StrategyConfiguration> getStrategyConfiguration();
+  }
+
+  public class XmlParser {
+    ctor public XmlParser();
+    method public static aidl.android.hardware.bluetooth.audio.setting.LeAudioOffloadSetting readLeAudioOffloadSetting(java.io.InputStream) throws javax.xml.datatype.DatatypeConfigurationException, java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+    method public static String readText(org.xmlpull.v1.XmlPullParser) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+    method public static void skip(org.xmlpull.v1.XmlPullParser) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
+  }
+
+}
+

bluetooth/audio/utils/le_audio_codec_capabilities/schema/removed.txt

@@ -0,0 +1 @@
+// Signature format: 2.0

bluetooth/audio/utils/le_audio_configuration_set/audio_set_configurations.fbs

@@ -0,0 +1,91 @@
+/*
+ *  Copyright (c) 2022 The Android Open Source Project
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ */
+namespace aidl.android.hardware.bluetooth.audio.le_audio;
+enum CodecSpecificLtvGenericTypes : byte {
+    SUPPORTED_SAMPLING_FREQUENCY = 0x01,
+    SUPPORTED_FRAME_DURATION = 0x02,
+    SUPPORTED_AUDIO_CHANNEL_ALLOCATION = 0x03,
+    SUPPORTED_OCTETS_PER_CODEC_FRAME = 0x04,
+    SUPPORTED_CODEC_FRAME_BLOCKS_PER_SDU = 0x05,
+}
+/// Note: Holds either a single value (when `value_width == 0`) or multiple
+///       values if `value.length()` is no-remainder divisible by the non-zero
+///       `value_width`.
+/// Note: Consider extending it with `flags` field, to hold additional info like
+///       IsBitfield, IsRange, etc. if we need these type-specific validations.
+table CompoundValue {
+    value: [ubyte] (required);
+    value_width: ubyte = 0;
+}
+table CodecSpecificConfiguration {
+    name: string;
+    type: ubyte (key);
+    compound_value: CompoundValue;
+}
+struct CodecId {
+    coding_format: ubyte;
+    vendor_company_id : ushort;
+    vendor_codec_id : ushort;
+}
+enum AudioSetConfigurationStrategy : byte {
+    MONO_ONE_CIS_PER_DEVICE = 0x00,
+    STEREO_TWO_CISES_PER_DEVICE = 0x01,
+    STEREO_ONE_CIS_PER_DEVICE = 0x02,
+}
+enum AudioSetConfigurationDirection : byte {
+    SINK = 0x01,
+    SOURCE = 0x02,
+}
+enum AudioSetConfigurationTargetLatency : byte {
+    LOW = 0x01,
+    BALANCED_RELIABILITY = 0x02,
+    HIGH_RELIABILITY = 0x03,
+}
+table AudioSetSubConfiguration {
+    device_cnt: ubyte;
+    ase_cnt: ubyte;
+    direction: AudioSetConfigurationDirection = SINK;
+    configuration_strategy: AudioSetConfigurationStrategy;
+    codec_id : CodecId (required);
+    codec_configuration: [CodecSpecificConfiguration] (required);
+}
+table CodecConfiguration {
+    name: string (key, required);
+    subconfigurations: [AudioSetSubConfiguration] (required);
+}
+table QosConfiguration {
+    name: string (key, required);
+    target_latency: AudioSetConfigurationTargetLatency = BALANCED_RELIABILITY;
+    retransmission_number: ubyte;
+    max_transport_latency : ushort;
+}
+/// Each set configration can contain multiple logical subconfigurations, which
+/// all must be configurable with the current set of audio devices. For example,
+/// one can define multiple output stream configurations with different
+/// qualities, or assign different configurations to each stream direction.
+table AudioSetConfiguration {
+    name: string (key, required);
+    codec_config_name: string (required);
+    qos_config_name: [string] (required);
+}
+table AudioSetConfigurations {
+    _comments_: [string];
+    configurations: [AudioSetConfiguration] (required);
+    codec_configurations: [CodecConfiguration] (required);
+    qos_configurations: [QosConfiguration] (required);
+}
+root_type AudioSetConfigurations;

bluetooth/audio/utils/le_audio_configuration_set/audio_set_scenarios.fbs

@@ -0,0 +1,36 @@
+/*
+ *  Copyright (c) 2022 The Android Open Source Project
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at:
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ */
+namespace aidl.android.hardware.bluetooth.audio.le_audio;
+/// Scenario represents the use case such as "Media", "Conversation", etc.
+/// Each scenario can list any number of codec configurations by their names in
+/// the order of preference. That means if the first entry does not meet all
+/// the current requirements (such as peer device capabilities etc.) next
+/// configurations are being checked.
+///
+/// The referenced codec configurations are defined by the
+/// audio_set_configurations.fbs schema and loaded from a different source file.
+/// Multiple scenarios can reference same codec configurations.
+table AudioSetScenario {
+    _comments_: [string];
+    name: string (key, required);
+    configurations: [string] (required);
+}
+table AudioSetScenarios {
+    _comments_: [string];
+    scenarios: [AudioSetScenario] (required);
+}
+root_type AudioSetScenarios;

bluetooth/audio/utils/le_audio_configuration_set/audio_set_scenarios.json

@@ -0,0 +1,304 @@
+{
+  "_comments_": [
+    "== Audio Set Scenarios ==",
+    "  Each defined scenario references externally defined audio set",
+    "  configurations, listed in the order of priority."
+  ],
+  "scenarios": [
+    {
+      "name": "Conversational",
+      "configurations": [
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_32_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_32_2_1",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_2_1",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_2_2",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_1_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_1_1",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_1_2",
+        "DualDev_OneChanStereoSnk_OneChanMonoSrc_32_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanMonoSrc_32_2_1",
+        "DualDev_OneChanStereoSnk_OneChanMonoSrc_16_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanMonoSrc_16_2_1",
+        "DualDev_OneChanStereoSnk_OneChanMonoSrc_16_1_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanMonoSrc_16_1_1",
+        "DualDev_OneChanDoubleStereoSnk_OneChanMonoSrc_32_2_Low_Latency",
+        "DualDev_OneChanDoubleStereoSnk_OneChanMonoSrc_32_2_1",
+        "DualDev_OneChanDoubleStereoSnk_OneChanMonoSrc_16_2_Low_Latency",
+        "DualDev_OneChanDoubleStereoSnk_OneChanMonoSrc_16_2_1",
+        "DualDev_OneChanDoubleStereoSnk_OneChanMonoSrc_16_1_Low_Latency",
+        "DualDev_OneChanDoubleStereoSnk_OneChanMonoSrc_16_1_1",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_32_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_32_2_1",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_2_1",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_2_2",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_1_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_1_1",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_1_2",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_32_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_32_2_1",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_16_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_16_2_1",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_16_1_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_16_1_1",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_32_2_Low_Latency",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_32_2_1",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_16_2_Low_Latency",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_16_2_1",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_16_1_Low_Latency",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_16_1_1",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_32_2_Low_Latency",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_32_2_1",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_16_2_Low_Latency",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_16_2_1",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_16_1_Low_Latency",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_16_1_1",
+        "DualDev_OneChanMonoSrc_16_2_Balanced_Reliability",
+        "SingleDev_OneChanStereoSrc_16_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_48_4_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_48_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_48_3_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_48_1_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_32_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_32_1_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_24_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_24_1_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_16_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_16_1_Balanced_Reliability",
+        "VND_SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_32khz_Server_Prefered_1",
+        "VND_SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_32khz_60oct_R3_L22_1",
+        "DualDev_OneChanMonoSnk_16_2_Balanced_Reliability",
+        "SingleDev_OneChanStereoSnk_16_2_Balanced_Reliability",
+        "SingleDev_TwoChanStereoSnk_16_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSnk_16_2_Balanced_Reliability"
+      ]
+    },
+    {
+      "name": "Media",
+      "configurations": [
+        "DualDev_OneChanStereoSnk_48_4_High_Reliability",
+        "DualDev_OneChanStereoSnk_48_4_2",
+        "DualDev_OneChanStereoSnk_48_2_High_Reliability",
+        "DualDev_OneChanStereoSnk_48_2_2",
+        "DualDev_OneChanStereoSnk_48_3_High_Reliability",
+        "DualDev_OneChanStereoSnk_48_3_2",
+        "DualDev_OneChanStereoSnk_48_1_High_Reliability",
+        "DualDev_OneChanStereoSnk_48_1_2",
+        "DualDev_OneChanStereoSnk_24_2_Balanced_Reliability",
+        "DualDev_OneChanStereoSnk_24_2_2",
+        "DualDev_OneChanStereoSnk_16_2_Balanced_Reliability",
+        "DualDev_OneChanStereoSnk_16_2_2",
+        "DualDev_OneChanStereoSnk_16_1_Balanced_Reliability",
+        "DualDev_OneChanStereoSnk_16_1_2",
+        "SingleDev_OneChanStereoSnk_48_4_High_Reliability",
+        "SingleDev_OneChanStereoSnk_48_4_2",
+        "SingleDev_OneChanStereoSnk_48_2_High_Reliability",
+        "SingleDev_OneChanStereoSnk_48_2_2",
+        "SingleDev_OneChanStereoSnk_48_3_High_Reliability",
+        "SingleDev_OneChanStereoSnk_48_3_2",
+        "SingleDev_OneChanStereoSnk_48_1_High_Reliability",
+        "SingleDev_OneChanStereoSnk_48_1_2",
+        "SingleDev_OneChanStereoSnk_24_2_Balanced_Reliability",
+        "SingleDev_OneChanStereoSnk_24_2_2",
+        "SingleDev_OneChanStereoSnk_16_2_Balanced_Reliability",
+        "SingleDev_OneChanStereoSnk_16_2_2",
+        "SingleDev_OneChanStereoSnk_16_1_Balanced_Reliability",
+        "SingleDev_OneChanStereoSnk_16_1_2",
+        "SingleDev_TwoChanStereoSnk_48_4_High_Reliability",
+        "SingleDev_TwoChanStereoSnk_48_4_2",
+        "SingleDev_TwoChanStereoSnk_48_4_High_Reliability",
+        "SingleDev_TwoChanStereoSnk_48_4_2",
+        "SingleDev_TwoChanStereoSnk_48_2_High_Reliability",
+        "SingleDev_TwoChanStereoSnk_48_2_2",
+        "SingleDev_TwoChanStereoSnk_48_3_High_Reliability",
+        "SingleDev_TwoChanStereoSnk_48_3_2",
+        "SingleDev_TwoChanStereoSnk_48_1_High_Reliability",
+        "SingleDev_TwoChanStereoSnk_48_1_2",
+        "SingleDev_TwoChanStereoSnk_24_2_Balanced_Reliability",
+        "SingleDev_TwoChanStereoSnk_24_2_2",
+        "SingleDev_TwoChanStereoSnk_16_2_Balanced_Reliability",
+        "SingleDev_TwoChanStereoSnk_16_2_2",
+        "SingleDev_TwoChanStereoSnk_16_1_Balanced_Reliability",
+        "SingleDev_TwoChanStereoSnk_16_1_2",
+        "SingleDev_OneChanMonoSnk_48_4_High_Reliability",
+        "SingleDev_OneChanMonoSnk_48_4_2",
+        "SingleDev_OneChanMonoSnk_48_2_High_Reliability",
+        "SingleDev_OneChanMonoSnk_48_2_2",
+        "SingleDev_OneChanMonoSnk_48_3_High_Reliability",
+        "SingleDev_OneChanMonoSnk_48_3_2",
+        "SingleDev_OneChanMonoSnk_48_1_High_Reliability",
+        "SingleDev_OneChanMonoSnk_48_1_2",
+        "SingleDev_OneChanMonoSnk_32_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSnk_32_2_2",
+        "SingleDev_OneChanMonoSnk_32_1_Balanced_Reliability",
+        "SingleDev_OneChanMonoSnk_32_1_2",
+        "SingleDev_OneChanMonoSnk_24_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSnk_24_2_2",
+        "SingleDev_OneChanMonoSnk_16_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSnk_16_2_2",
+        "SingleDev_OneChanMonoSnk_16_1_Balanced_Reliability",
+        "SingleDev_OneChanMonoSnk_16_1_2",
+        "VND_DualDev_OneChanStereoSnk_48khz_100octs_High_Reliability_1",
+        "VND_DualDev_OneChanStereoSnk_48khz_100octs_R15_L70_1",
+        "VND_SingleDev_TwoChanStereoSnk_48khz_100octs_High_Reliability_1",
+        "VND_SingleDev_TwoChanStereoSnk_48khz_100octs_R15_L70_1",
+        "VND_SingleDev_OneChanStereoSnk_48khz_100octs_High_Reliability_1",
+        "VND_SingleDev_OneChanStereoSnk_48khz_100octs_R15_L70_1",
+        "DualDev_OneChanMonoSrc_16_2_Balanced_Reliability",
+        "SingleDev_OneChanStereoSrc_16_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_16_2_Balanced_Reliability"
+      ]
+    },
+    {
+      "name": "Game",
+      "configurations": [
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_32_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_1_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_48_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_48_1_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_32_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_1_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_32_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_16_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_16_1_Low_Latency",
+        "VND_SingleDev_TwoChanStereoSnk_48khz_75octs_TwoChanStereoSrc_16khz_30octs_Balanced_Reliability_1",
+        "VND_SingleDev_TwoChanStereoSnk_48khz_75octs_R5_L12_TwoChanStereoSrc_16khz_30octs_R3_L12_1",
+        "VND_SingleDev_TwoChanStereoSnk_48khz_75octs_High_Reliability_1",
+        "VND_SingleDev_TwoChanStereoSnk_48khz_75octs_R5_L12_1",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_32_2_Low_Latency",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_16_2_Low_Latency",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_16_1_Low_Latency",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_32_2_Low_Latency",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_16_2_Low_Latency",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_16_1_Low_Latency",
+        "DualDev_OneChanStereoSnk_48_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_48_3_Low_Latency",
+        "DualDev_OneChanStereoSnk_48_1_Low_Latency",
+        "DualDev_OneChanStereoSnk_32_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_32_1_Low_Latency",
+        "DualDev_OneChanStereoSnk_24_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_24_1_Low_Latency",
+        "DualDev_OneChanStereoSnk_16_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_16_1_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_48_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_48_3_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_48_1_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_32_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_32_1_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_24_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_24_1_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_16_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_16_1_Low_Latency",
+        "SingleDev_OneChanStereoSnk_48_2_Low_Latency",
+        "SingleDev_OneChanStereoSnk_48_3_Low_Latency",
+        "SingleDev_OneChanStereoSnk_48_1_Low_Latency",
+        "SingleDev_OneChanStereoSnk_32_2_Low_Latency",
+        "SingleDev_OneChanStereoSnk_32_1_Low_Latency",
+        "SingleDev_OneChanStereoSnk_24_2_Low_Latency",
+        "SingleDev_OneChanStereoSnk_24_1_Low_Latency",
+        "SingleDev_OneChanStereoSnk_16_2_Low_Latency",
+        "SingleDev_OneChanStereoSnk_16_1_Low_Latency"
+      ]
+    },
+    {
+      "name": "VoiceAssistants",
+      "configurations": [
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_32_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_32_2_1",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_2_1",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_1_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_1_1",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_48_2_Balanced_Reliability",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_48_1_Balanced_Reliability",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_32_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_32_2_1",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_2_1",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_1_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_1_1",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_32_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_32_2_1",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_16_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_16_2_1",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_16_1_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_16_1_1",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_32_2_Low_Latency",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_32_2_1",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_16_2_Low_Latency",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_16_2_1",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_16_1_Low_Latency",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_16_1_1",
+        "DualDev_OneChanStereoSnk_48_4_OneChanStereoSrc_16_2_Balanced_Reliability",
+        "DualDev_OneChanStereoSnk_48_4_OneChanStereoSrc_24_2_Balanced_Reliability",
+        "DualDev_OneChanStereoSnk_48_4_OneChanStereoSrc_32_2_Balanced_Reliability",
+        "DualDev_OneChanStereoSnk_48_4_OneChanMonoSrc_16_2_Balanced_Reliability",
+        "DualDev_OneChanStereoSnk_48_4_OneChanMonoSrc_24_2_Balanced_Reliability",
+        "DualDev_OneChanStereoSnk_48_4_OneChanMonoSrc_32_2_Balanced_Reliability",
+        "DualDev_OneChanDoubleStereoSnk_48_4_OneChanMonoSrc_16_2_Balanced_Reliability",
+        "DualDev_OneChanDoubleStereoSnk_48_4_OneChanMonoSrc_24_2_Balanced_Reliability",
+        "DualDev_OneChanDoubleStereoSnk_48_4_OneChanMonoSrc_32_2_Balanced_Reliability",
+        "SingleDev_TwoChanStereoSnk_48_4_TwoChanStereoSrc_16_2_Balanced_Reliability",
+        "SingleDev_TwoChanStereoSnk_48_4_TwoChanStereoSrc_24_2_Balanced_Reliability",
+        "SingleDev_TwoChanStereoSnk_48_4_TwoChanStereoSrc_32_2_Balanced_Reliability",
+        "SingleDev_TwoChanStereoSnk_48_4_OneChanMonoSrc_16_2_Balanced_Reliability",
+        "SingleDev_TwoChanStereoSnk_48_4_OneChanMonoSrc_24_2_Balanced_Reliability",
+        "SingleDev_TwoChanStereoSnk_48_4_OneChanMonoSrc_32_2_Balanced_Reliability",
+        "SingleDev_OneChanStereoSnk_48_4_OneChanMonoSrc_16_2_Balanced_Reliability",
+        "SingleDev_OneChanStereoSnk_48_4_OneChanMonoSrc_24_2_Balanced_Reliability",
+        "SingleDev_OneChanStereoSnk_48_4_OneChanMonoSrc_32_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSnk_48_4_OneChanMonoSrc_16_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSnk_48_4_OneChanMonoSrc_24_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSnk_48_4_OneChanMonoSrc_32_2_Balanced_Reliability"
+      ]
+    },
+    {
+      "name": "Live",
+      "configurations": [
+        "VND_SingleDev_TwoChanStereoSrc_48khz_100octs_Balanced_Reliability_1",
+        "VND_SingleDev_TwoChanStereoSrc_48khz_100octs_R11_L40_1",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_32_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_32_2_1",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_2_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_2_1",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_1_Low_Latency",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_16_1_1",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_48_2_Balanced_Reliability",
+        "DualDev_OneChanStereoSnk_OneChanStereoSrc_48_1_Balanced_Reliability",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_32_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_32_2_1",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_2_1",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_1_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_TwoChanStereoSrc_16_1_1",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_32_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_32_2_1",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_16_2_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_16_2_1",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_16_1_Low_Latency",
+        "SingleDev_TwoChanStereoSnk_OneChanMonoSrc_16_1_1",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_32_2_Low_Latency",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_32_2_1",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_16_2_Low_Latency",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_16_2_1",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_16_1_Low_Latency",
+        "SingleDev_OneChanStereoSnk_OneChanMonoSrc_16_1_1",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_32_2_Low_Latency",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_32_2_1",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_16_2_Low_Latency",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_16_2_1",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_16_1_Low_Latency",
+        "SingleDev_OneChanMonoSnk_OneChanMonoSrc_16_1_1",
+        "SingleDev_OneChanMonoSrc_48_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_48_1_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_32_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_32_1_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_16_2_Balanced_Reliability",
+        "SingleDev_OneChanMonoSrc_16_1_Balanced_Reliability"
+      ]
+    }
+  ]
+}