BT: AptxAdaptive LE/LEX codec and AAC ABR AIDL Changes

AptxAdaptive LE/LEX codec and AAC ABR AIDL side changes Bug: 254567319 Tag: #feature Test: m android.hardware.bluetooth.audio-freeze-api && m android.hardware.bluetooth.audio-update-api && atest VtsHalBluetoothAudioTargetTest Change-Id: I74a2df64ba6ef2ae02e08850b0f6c7784b24b02b
2026-02-01 11:36:00 +00:00 · 2022-12-07 17:56:04 +05:30
parent efd4cf71e5
commit 62df910355
20 changed files with 465 additions and 17 deletions
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AacCapabilities.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AacCapabilities.aidl
@@ -39,4 +39,5 @@ parcelable AacCapabilities {
  android.hardware.bluetooth.audio.ChannelMode[] channelMode;
  boolean variableBitRateSupported;
  byte[] bitsPerSample;
+  boolean adaptiveBitRateSupported;
 }
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AacConfiguration.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AacConfiguration.aidl
@@ -39,4 +39,5 @@ parcelable AacConfiguration {
  android.hardware.bluetooth.audio.ChannelMode channelMode;
  boolean variableBitRateEnabled;
  byte bitsPerSample;
+  boolean adaptiveBitRateSupported;
 }
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveLeCapabilities.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveLeCapabilities.aidl
@@ -0,0 +1,42 @@
+/*
+ * Copyright 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.audio;
+@VintfStability
+parcelable AptxAdaptiveLeCapabilities {
+  byte[] pcmBitDepth;
+  int[] samplingFrequencyHz;
+  int[] frameDurationUs;
+  int[] octetsPerFrame;
+  byte[] blocksPerSdu;
+}
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveLeConfiguration.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/AptxAdaptiveLeConfiguration.aidl
@@ -0,0 +1,43 @@
+/*
+ * Copyright 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.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.bluetooth.audio;
+@VintfStability
+parcelable AptxAdaptiveLeConfiguration {
+  byte pcmBitDepth;
+  int samplingFrequencyHz;
+  int frameDurationUs;
+  int octetsPerFrame;
+  byte blocksPerSdu;
+  int codecMode;
+}
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecType.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/CodecType.aidl
@@ -44,4 +44,6 @@ enum CodecType {
  VENDOR = 7,
  APTX_ADAPTIVE = 8,
  OPUS = 9,
+  APTX_ADAPTIVE_LE = 10,
+  APTX_ADAPTIVE_LEX = 11,
 }
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioCodecConfiguration.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioCodecConfiguration.aidl
@@ -36,6 +36,7 @@ package android.hardware.bluetooth.audio;
 union LeAudioCodecConfiguration {
  android.hardware.bluetooth.audio.Lc3Configuration lc3Config;
  android.hardware.bluetooth.audio.LeAudioCodecConfiguration.VendorConfiguration vendorConfig;
+  android.hardware.bluetooth.audio.AptxAdaptiveLeConfiguration aptxAdaptiveLeConfig;
  @VintfStability
  parcelable VendorConfiguration {
    ParcelableHolder extension;
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioConfiguration.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/LeAudioConfiguration.aidl
@@ -38,6 +38,7 @@ parcelable LeAudioConfiguration {
  android.hardware.bluetooth.audio.LeAudioConfiguration.StreamMap[] streamMap;
  int peerDelayUs;
  android.hardware.bluetooth.audio.LeAudioCodecConfiguration leAudioCodecConfig;
+  @nullable byte[] vendorSpecificMetadata;
  @VintfStability
  parcelable StreamMap {
    char streamHandle;
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/OpusCapabilities.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/OpusCapabilities.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 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.
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/OpusConfiguration.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/OpusConfiguration.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Android Open Source Project
+ * Copyright 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.
--- a/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/UnicastCapability.aidl
+++ b/bluetooth/audio/aidl/aidl_api/android.hardware.bluetooth.audio/current/android/hardware/bluetooth/audio/UnicastCapability.aidl
@@ -47,5 +47,6 @@ parcelable UnicastCapability {
  union LeAudioCodecCapabilities {
    android.hardware.bluetooth.audio.Lc3Capabilities lc3Capabilities;
    android.hardware.bluetooth.audio.UnicastCapability.VendorCapabilities vendorCapabillities;
+    android.hardware.bluetooth.audio.AptxAdaptiveLeCapabilities aptxAdaptiveLeCapabilities;
  }
 }
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AacCapabilities.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AacCapabilities.aidl
@@ -29,4 +29,5 @@ parcelable AacCapabilities {
    ChannelMode[] channelMode;
    boolean variableBitRateSupported;
    byte[] bitsPerSample;
+    boolean adaptiveBitRateSupported;
 }
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AacConfiguration.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AacConfiguration.aidl
@@ -29,4 +29,5 @@ parcelable AacConfiguration {
    ChannelMode channelMode;
    boolean variableBitRateEnabled;
    byte bitsPerSample;
+    boolean adaptiveBitRateSupported;
 }
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveLeCapabilities.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveLeCapabilities.aidl
@@ -0,0 +1,44 @@
+/*
+ * Copyright 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.
+ */
+
+package android.hardware.bluetooth.audio;
+
+/**
+ * Used for Hardware Encoding/Decoding Aptx Adaptive LE codec capabilities.
+ */
+@VintfStability
+parcelable AptxAdaptiveLeCapabilities {
+    /*
+     * PCM is Input for encoder, Output for decoder
+     */
+    byte[] pcmBitDepth;
+    /*
+     * codec-specific parameters
+     */
+    int[] samplingFrequencyHz;
+    /*
+     * FrameDuration based on microseconds.
+     */
+    int[] frameDurationUs;
+    /*
+     * length in octets of a codec frame
+     */
+    int[] octetsPerFrame;
+    /*
+     * Number of blocks of codec frames per single SDU (Service Data Unit)
+     */
+    byte[] blocksPerSdu;
+}
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveLeConfiguration.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/AptxAdaptiveLeConfiguration.aidl
@@ -0,0 +1,51 @@
+/*
+ * Copyright 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.
+ */
+
+package android.hardware.bluetooth.audio;
+
+/**
+ * Used for Hardware Encoding/Decoding Aptx Adaptive LE/LEX codec configuration.
+ */
+@VintfStability
+parcelable AptxAdaptiveLeConfiguration {
+    /*
+     * PCM is Input for encoder, Output for decoder
+     */
+    byte pcmBitDepth;
+    /*
+     * codec-specific parameters
+     */
+    int samplingFrequencyHz;
+    /*
+     * FrameDuration based on microseconds.
+     */
+    int frameDurationUs;
+    /*
+     * length in octets of a codec frame
+     */
+    int octetsPerFrame;
+    /*
+     * Number of blocks of codec frames per single SDU (Service Data Unit)
+     */
+    byte blocksPerSdu;
+    /*
+     * Currently being used for Aptx Adaptive LEX,
+     * RFU for Aptx Adaptive LE
+     * Based on this value, the codec will determine the quality of stream
+     * during initialization for Music/Game
+     */
+    int codecMode;
+}
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecType.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/CodecType.aidl
@@ -29,4 +29,6 @@ enum CodecType {
    VENDOR,
    APTX_ADAPTIVE,
    OPUS,
+    APTX_ADAPTIVE_LE,
+    APTX_ADAPTIVE_LEX,
 }
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioCodecConfiguration.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioCodecConfiguration.aidl
@@ -17,6 +17,7 @@
 package android.hardware.bluetooth.audio;

 import android.hardware.bluetooth.audio.Lc3Configuration;
+import android.hardware.bluetooth.audio.AptxAdaptiveLeConfiguration;

@VintfStability
 union LeAudioCodecConfiguration {
@@ -26,4 +27,5 @@ union LeAudioCodecConfiguration {
    }
    Lc3Configuration lc3Config;
    VendorConfiguration vendorConfig;
+    AptxAdaptiveLeConfiguration aptxAdaptiveLeConfig;
 }
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioConfiguration.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/LeAudioConfiguration.aidl
@@ -44,4 +44,16 @@ parcelable LeAudioConfiguration {
    StreamMap[] streamMap;
    int peerDelayUs;
    LeAudioCodecConfiguration leAudioCodecConfig;
+
+    /*
+     * Bluetooth LTV format for vendor metadata is defined in the
+     * Section 6.12.6.9 Vendor_Specific of Bluetooth Assigned Numbers
+     *
+     * Octet 0 = Length
+     * Octet 1 = Type (Vendor specific - 0xFF)
+     * Octet 2-3 = Company_ID
+     * Company ID values are defined in Bluetooth Assigned Numbers.
+     * Octet 4 onwards = Vendor specific Metadata
+     */
+    @nullable byte[] vendorSpecificMetadata;
 }
--- a/bluetooth/audio/aidl/android/hardware/bluetooth/audio/UnicastCapability.aidl
+++ b/bluetooth/audio/aidl/android/hardware/bluetooth/audio/UnicastCapability.aidl
@@ -19,6 +19,7 @@ package android.hardware.bluetooth.audio;
 import android.hardware.bluetooth.audio.AudioLocation;
 import android.hardware.bluetooth.audio.CodecType;
 import android.hardware.bluetooth.audio.Lc3Capabilities;
+import android.hardware.bluetooth.audio.AptxAdaptiveLeCapabilities;

 /**
 * Used to specify the le audio unicast codec capabilities for hardware offload.
@@ -33,6 +34,7 @@ parcelable UnicastCapability {
    union LeAudioCodecCapabilities {
        Lc3Capabilities lc3Capabilities;
        VendorCapabilities vendorCapabillities;
+        AptxAdaptiveLeCapabilities aptxAdaptiveLeCapabilities;
    }
    CodecType codecType;
    AudioLocation supportedChannel;
--- a/bluetooth/audio/aidl/vts/VtsHalBluetoothAudioTargetTest.cpp
+++ b/bluetooth/audio/aidl/vts/VtsHalBluetoothAudioTargetTest.cpp
@@ -35,6 +35,8 @@ using aidl::android::hardware::audio::common::SinkMetadata;
 using aidl::android::hardware::audio::common::SourceMetadata;
 using aidl::android::hardware::bluetooth::audio::AacCapabilities;
 using aidl::android::hardware::bluetooth::audio::AacConfiguration;
+using aidl::android::hardware::bluetooth::audio::AptxAdaptiveLeCapabilities;
+using aidl::android::hardware::bluetooth::audio::AptxAdaptiveLeConfiguration;
 using aidl::android::hardware::bluetooth::audio::AptxCapabilities;
 using aidl::android::hardware::bluetooth::audio::AptxConfiguration;
 using aidl::android::hardware::bluetooth::audio::AudioCapabilities;
@@ -87,10 +89,6 @@ static constexpr int32_t a2dp_sample_rates[] = {0, 44100, 48000, 88200, 96000};
 static constexpr int8_t a2dp_bits_per_samples[] = {0, 16, 24, 32};
 static constexpr ChannelMode a2dp_channel_modes[] = {
    ChannelMode::UNKNOWN, ChannelMode::MONO, ChannelMode::STEREO};
-static constexpr CodecType a2dp_codec_types[] = {
-    CodecType::UNKNOWN, CodecType::SBC,          CodecType::AAC,
-    CodecType::APTX,    CodecType::APTX_HD,      CodecType::LDAC,
-    CodecType::LC3,     CodecType::APTX_ADAPTIVE};
 static std::vector<LatencyMode> latency_modes = {LatencyMode::FREE};
 // Helpers

@@ -238,6 +236,8 @@ class BluetoothAudioProviderFactoryAidl
                        CodecCapabilities::Capabilities::opusCapabilities);
              break;
            case CodecType::APTX_ADAPTIVE:
+            case CodecType::APTX_ADAPTIVE_LE:
+            case CodecType::APTX_ADAPTIVE_LEX:
            case CodecType::LC3:
            case CodecType::VENDOR:
            case CodecType::UNKNOWN:
@@ -387,6 +387,11 @@ class BluetoothAudioProviderFactoryAidl
      variable_bit_rate_enableds.push_back(true);
    }

+    std::vector<bool> adaptive_bit_rate_supporteds = {false};
+    if (aac_capability.adaptiveBitRateSupported) {
+      adaptive_bit_rate_supporteds.push_back(true);
+    }
+
    // combine those parameters into one list of
    // CodecConfiguration::CodecSpecific
    for (auto object_type : aac_capability.objectType) {
@@ -394,14 +399,18 @@ class BluetoothAudioProviderFactoryAidl
        for (auto channel_mode : aac_capability.channelMode) {
          for (int8_t bits_per_sample : aac_capability.bitsPerSample) {
            for (auto variable_bit_rate_enabled : variable_bit_rate_enableds) {
-              AacConfiguration aac_data{
-                  .objectType = object_type,
-                  .sampleRateHz = sample_rate,
-                  .channelMode = channel_mode,
-                  .variableBitRateEnabled = variable_bit_rate_enabled,
-                  .bitsPerSample = bits_per_sample};
-              aac_codec_specifics.push_back(
-                  CodecConfiguration::CodecSpecific(aac_data));
+              for (auto adaptive_bit_rate_supported :
+                   adaptive_bit_rate_supporteds) {
+                AacConfiguration aac_data{
+                    .objectType = object_type,
+                    .sampleRateHz = sample_rate,
+                    .channelMode = channel_mode,
+                    .variableBitRateEnabled = variable_bit_rate_enabled,
+                    .bitsPerSample = bits_per_sample,
+                    .adaptiveBitRateSupported = adaptive_bit_rate_supported};
+                aac_codec_specifics.push_back(
+                    CodecConfiguration::CodecSpecific(aac_data));
+              }
            }
          }
        }
@@ -845,7 +854,7 @@ TEST_P(BluetoothAudioProviderA2dpEncodingHardwareAidl,
  ASSERT_NE(audio_provider_, nullptr);

  std::vector<CodecConfiguration::CodecSpecific> codec_specifics;
-  for (auto codec_type : a2dp_codec_types) {
+  for (auto codec_type : ndk::enum_range<CodecType>()) {
    switch (codec_type) {
      case CodecType::SBC:
        codec_specifics = GetSbcCodecSpecificSupportedList(false);
@@ -866,6 +875,8 @@ TEST_P(BluetoothAudioProviderA2dpEncodingHardwareAidl,
        codec_specifics = GetOpusCodecSpecificSupportedList(false);
        continue;
      case CodecType::APTX_ADAPTIVE:
+      case CodecType::APTX_ADAPTIVE_LE:
+      case CodecType::APTX_ADAPTIVE_LEX:
      case CodecType::LC3:
      case CodecType::VENDOR:
      case CodecType::UNKNOWN:
@@ -1192,6 +1203,73 @@ class BluetoothAudioProviderLeAudioOutputHardwareAidl
    return le_audio_codec_configs;
  }

+  static constexpr int32_t apx_adaptive_le_config_codec_modes[] = {0, 1, 2, 3};
+
+  std::vector<AptxAdaptiveLeConfiguration>
+  GetUnicastAptxAdaptiveLeSupportedList(bool decoding, bool supported,
+                                        bool is_le_extended) {
+    std::vector<AptxAdaptiveLeConfiguration> le_audio_codec_configs;
+    if (!supported) {
+      AptxAdaptiveLeConfiguration aptx_adaptive_le_config{
+          .pcmBitDepth = 0, .samplingFrequencyHz = 0};
+      le_audio_codec_configs.push_back(aptx_adaptive_le_config);
+      return le_audio_codec_configs;
+    }
+
+    // There might be more than one LeAudioCodecCapabilitiesSetting
+    std::vector<AptxAdaptiveLeCapabilities> aptx_adaptive_le_capabilities;
+    for (auto& capability : temp_provider_capabilities_) {
+      if (capability.getTag() != AudioCapabilities::leAudioCapabilities) {
+        continue;
+      }
+      auto& le_audio_capability =
+          capability.get<AudioCapabilities::leAudioCapabilities>();
+      auto& unicast_capability =
+          decoding ? le_audio_capability.unicastDecodeCapability
+                   : le_audio_capability.unicastEncodeCapability;
+      if ((!is_le_extended &&
+           unicast_capability.codecType != CodecType::APTX_ADAPTIVE_LE) ||
+          (is_le_extended &&
+           unicast_capability.codecType != CodecType::APTX_ADAPTIVE_LEX)) {
+        continue;
+      }
+
+      auto& aptx_adaptive_le_capability =
+          unicast_capability.leAudioCodecCapabilities
+              .get<UnicastCapability::LeAudioCodecCapabilities::
+                       aptxAdaptiveLeCapabilities>();
+
+      aptx_adaptive_le_capabilities.push_back(aptx_adaptive_le_capability);
+    }
+
+    for (auto& aptx_adaptive_le_capability : aptx_adaptive_le_capabilities) {
+      for (int32_t samplingFrequencyHz :
+           aptx_adaptive_le_capability.samplingFrequencyHz) {
+        for (int32_t frameDurationUs :
+             aptx_adaptive_le_capability.frameDurationUs) {
+          for (int32_t octetsPerFrame :
+               aptx_adaptive_le_capability.octetsPerFrame) {
+            for (int8_t blocksPerSdu :
+                 aptx_adaptive_le_capability.blocksPerSdu) {
+              for (int32_t codecMode : apx_adaptive_le_config_codec_modes) {
+                AptxAdaptiveLeConfiguration aptx_adaptive_le_config = {
+                    .samplingFrequencyHz = samplingFrequencyHz,
+                    .frameDurationUs = frameDurationUs,
+                    .octetsPerFrame = octetsPerFrame,
+                    .blocksPerSdu = blocksPerSdu,
+                    .codecMode = codecMode,
+                };
+                le_audio_codec_configs.push_back(aptx_adaptive_le_config);
+              }
+            }
+          }
+        }
+      }
+    }
+
+    return le_audio_codec_configs;
+  }
+
  LeAudioCodecCapabilitiesSetting temp_le_audio_capabilities_;
 };

@@ -1268,6 +1346,87 @@ TEST_P(BluetoothAudioProviderLeAudioOutputHardwareAidl,
  }
 }

+static std::vector<uint8_t> vendorMetadata = {0x0B,  // Length
+                                              0xFF,  // Type: Vendor-specific
+                                              0x0A, 0x00,  // Company_ID
+                                              0x01, 0x02, 0x03, 0x04,  // Data
+                                              0x05, 0x06, 0x07, 0x08};
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH can be started and
+ * stopped with Unicast hardware encoding config
+ */
+TEST_P(BluetoothAudioProviderLeAudioOutputHardwareAidl,
+       StartAndEndLeAudioOutputSessionWithAptxAdaptiveLeUnicastConfig) {
+  if (!IsOffloadOutputSupported()) {
+    return;
+  }
+  for (auto codec_type :
+       {CodecType::APTX_ADAPTIVE_LE, CodecType::APTX_ADAPTIVE_LEX}) {
+    bool is_le_extended = (codec_type == CodecType::APTX_ADAPTIVE_LEX);
+    auto aptx_adaptive_le_codec_configs =
+        GetUnicastAptxAdaptiveLeSupportedList(false, true, is_le_extended);
+    LeAudioConfiguration le_audio_config = {
+        .codecType = codec_type,
+        .peerDelayUs = 0,
+        .vendorSpecificMetadata = vendorMetadata,
+    };
+
+    for (auto& aptx_adaptive_le_config : aptx_adaptive_le_codec_configs) {
+      le_audio_config.leAudioCodecConfig
+          .set<LeAudioCodecConfiguration::aptxAdaptiveLeConfig>(
+              aptx_adaptive_le_config);
+      DataMQDesc mq_desc;
+      auto aidl_retval = audio_provider_->startSession(
+          audio_port_, AudioConfiguration(le_audio_config), latency_modes,
+          &mq_desc);
+
+      ASSERT_TRUE(aidl_retval.isOk());
+      EXPECT_TRUE(audio_provider_->endSession().isOk());
+    }
+  }
+}
+
+/**
+ * Test whether each provider of type
+ * SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH can be started and
+ * stopped with Unicast hardware encoding config
+ */
+TEST_P(
+    BluetoothAudioProviderLeAudioOutputHardwareAidl,
+    BluetoothAudioProviderLeAudioOutputHardwareAidl_StartAndEndLeAudioOutputSessionWithInvalidAptxAdaptiveLeAudioConfiguration) {
+  if (!IsOffloadOutputSupported()) {
+    return;
+  }
+
+  for (auto codec_type :
+       {CodecType::APTX_ADAPTIVE_LE, CodecType::APTX_ADAPTIVE_LEX}) {
+    bool is_le_extended = (codec_type == CodecType::APTX_ADAPTIVE_LEX);
+    auto aptx_adaptive_le_codec_configs =
+        GetUnicastAptxAdaptiveLeSupportedList(false, true, is_le_extended);
+    LeAudioConfiguration le_audio_config = {
+        .codecType = codec_type,
+        .peerDelayUs = 0,
+        .vendorSpecificMetadata = vendorMetadata,
+    };
+
+    for (auto& aptx_adaptive_le_config : aptx_adaptive_le_codec_configs) {
+      le_audio_config.leAudioCodecConfig
+          .set<LeAudioCodecConfiguration::aptxAdaptiveLeConfig>(
+              aptx_adaptive_le_config);
+      DataMQDesc mq_desc;
+      auto aidl_retval = audio_provider_->startSession(
+          audio_port_, AudioConfiguration(le_audio_config), latency_modes,
+          &mq_desc);
+
+      // AIDL call should fail on invalid codec
+      ASSERT_FALSE(aidl_retval.isOk());
+      EXPECT_TRUE(audio_provider_->endSession().isOk());
+    }
+  }
+}
+
 /**
 * openProvider LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH
 */
@@ -1877,7 +2036,7 @@ TEST_P(BluetoothAudioProviderA2dpDecodingHardwareAidl,
  ASSERT_NE(audio_provider_, nullptr);

  std::vector<CodecConfiguration::CodecSpecific> codec_specifics;
-  for (auto codec_type : a2dp_codec_types) {
+  for (auto codec_type : ndk::enum_range<CodecType>()) {
    switch (codec_type) {
      case CodecType::SBC:
        codec_specifics = GetSbcCodecSpecificSupportedList(false);
@@ -1898,6 +2057,8 @@ TEST_P(BluetoothAudioProviderA2dpDecodingHardwareAidl,
        codec_specifics = GetOpusCodecSpecificSupportedList(false);
        continue;
      case CodecType::APTX_ADAPTIVE:
+      case CodecType::APTX_ADAPTIVE_LE:
+      case CodecType::APTX_ADAPTIVE_LEX:
      case CodecType::LC3:
      case CodecType::VENDOR:
      case CodecType::UNKNOWN:
--- a/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp
+++ b/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp
@@ -20,6 +20,8 @@

 #include <aidl/android/hardware/bluetooth/audio/AacCapabilities.h>
 #include <aidl/android/hardware/bluetooth/audio/AacObjectType.h>
+#include <aidl/android/hardware/bluetooth/audio/AptxAdaptiveLeCapabilities.h>
+#include <aidl/android/hardware/bluetooth/audio/AptxAdaptiveLeConfiguration.h>
 #include <aidl/android/hardware/bluetooth/audio/AptxCapabilities.h>
 #include <aidl/android/hardware/bluetooth/audio/ChannelMode.h>
 #include <aidl/android/hardware/bluetooth/audio/LdacCapabilities.h>
@@ -98,6 +100,55 @@ const std::vector<CodecCapabilities> kDefaultOffloadA2dpCodecCapabilities = {

 std::vector<LeAudioCodecCapabilitiesSetting> kDefaultOffloadLeAudioCapabilities;

+static const UnicastCapability kInvalidUnicastCapability = {
+    .codecType = CodecType::UNKNOWN};
+
+static const AptxAdaptiveLeCapabilities
+    kDefaultOffloadAptxAdaptiveLeCapability_48k = {
+        .samplingFrequencyHz = {48000},
+        .frameDurationUs = {10000},
+        .octetsPerFrame = {816}};
+
+static const AptxAdaptiveLeCapabilities
+    kDefaultOffloadAptxAdaptiveLeCapability_96k = {
+        .samplingFrequencyHz = {96000},
+        .frameDurationUs = {10000},
+        .octetsPerFrame = {816}};
+
+static const AptxAdaptiveLeCapabilities
+    kDefaultOffloadAptxAdaptiveLeXCapability_48k = {
+        .samplingFrequencyHz = {48000},
+        .frameDurationUs = {10000},
+        .octetsPerFrame = {816}};
+
+static const AptxAdaptiveLeCapabilities
+    kDefaultOffloadAptxAdaptiveLeXCapability_96k = {
+        .samplingFrequencyHz = {96000},
+        .frameDurationUs = {10000},
+        .octetsPerFrame = {816}};
+
+static const BroadcastCapability kInvalidBroadcastCapability = {
+    .codecType = CodecType::UNKNOWN};
+
+static AudioLocation stereoAudio = static_cast<AudioLocation>(
+    static_cast<uint8_t>(AudioLocation::FRONT_LEFT) |
+    static_cast<uint8_t>(AudioLocation::FRONT_RIGHT));
+
+static const std::vector<AptxAdaptiveLeCapabilities>
+    supportedAptxAdaptiveLeCapabilityList = {
+        kDefaultOffloadAptxAdaptiveLeCapability_48k,
+        kDefaultOffloadAptxAdaptiveLeCapability_96k,
+        kDefaultOffloadAptxAdaptiveLeXCapability_48k,
+        kDefaultOffloadAptxAdaptiveLeXCapability_96k};
+
+// 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, one connected device for both L and R
+        std::make_tuple(stereoAudio, 1, 2),
+};
+
 template <class T>
 bool BluetoothAudioCodecs::ContainedInVector(
    const std::vector<T>& vector, const typename identity<T>::type& target) {
@@ -312,6 +363,8 @@ BluetoothAudioCodecs::GetA2dpOffloadCodecCapabilities(
      case CodecType::VENDOR:
      case CodecType::LC3:
      case CodecType::APTX_ADAPTIVE:
+      case CodecType::APTX_ADAPTIVE_LE:
+      case CodecType::APTX_ADAPTIVE_LEX:
        break;
    }
  }
@@ -377,6 +430,8 @@ 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:
@@ -403,8 +458,33 @@ BluetoothAudioCodecs::GetLeAudioOffloadCodecCapabilities(
    kDefaultOffloadLeAudioCapabilities =
        BluetoothLeAudioCodecsProvider::GetLeAudioCodecCapabilities(
            le_audio_offload_setting);
-  }

+    for (auto [audioLocation, deviceCnt, channelCount] :
+         supportedDeviceSetting) {
+      for (auto capability : supportedAptxAdaptiveLeCapabilityList) {
+        for (auto codec_type :
+             {CodecType::APTX_ADAPTIVE_LE, CodecType::APTX_ADAPTIVE_LEX}) {
+          if (session_type ==
+              SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {
+            UnicastCapability aptx_adaptive_le_cap = {
+                .codecType = codec_type,
+                .supportedChannel = audioLocation,
+                .deviceCount = deviceCnt,
+                .channelCountPerDevice = channelCount,
+                .leAudioCodecCapabilities =
+                    UnicastCapability::LeAudioCodecCapabilities(capability),
+            };
+
+            // Adds the capability for encode only
+            kDefaultOffloadLeAudioCapabilities.push_back(
+                {.unicastEncodeCapability = aptx_adaptive_le_cap,
+                 .unicastDecodeCapability = kInvalidUnicastCapability,
+                 .broadcastCapability = kInvalidBroadcastCapability});
+          }
+        }
+      }
+    }
+  }
  return kDefaultOffloadLeAudioCapabilities;
 }