Expose different offload audio capabilities by project
The current LE audio offload capabilities is hardcode in the
Bluetooth audio HAL. It has the limitation that all the project
would expose the same capabilities. As the newer project comes,
if the ADSP or the controller could handle more configuration
with higher quality or higher bandwidth. It would impact older
project may not work on it. So we plan the feature to make the
le audio offload support to be more flexible.
Bug: 238983662
Test: 1. atest VtsHalBluetoothAudioTargetTest
2. make sure offload capabilities can be supported with those
devices having config XML file
Change-Id: Id82581fdcd22e38108f17c7942bca997b53bab35
diff --git a/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp b/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp
index 036d6cd..855dd28 100644
--- a/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp
+++ b/bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp
@@ -32,6 +32,8 @@
#include <aidl/android/hardware/bluetooth/audio/SbcChannelMode.h>
#include <android-base/logging.h>
+#include "BluetoothLeAudioCodecsProvider.h"
+
namespace aidl {
namespace android {
namespace hardware {
@@ -96,67 +98,6 @@
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)};
-
template <class T>
bool BluetoothAudioCodecs::ContainedInVector(
const std::vector<T>& vector, const typename identity<T>::type& target) {
@@ -444,19 +385,6 @@
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) {
@@ -470,41 +398,8 @@
}
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);
-
- // 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(force one active device for decode)
- kDefaultOffloadLeAudioCapabilities.push_back(
- {.unicastEncodeCapability = lc3Capability,
- .unicastDecodeCapability = lc3MonoDecodeCapability,
- .broadcastCapability = kInvalidBroadcastCapability});
-
- // Adds the capability for the case that encode and decode exist at the
- // same time
- kDefaultOffloadLeAudioCapabilities.push_back(
- {.unicastEncodeCapability = lc3Capability,
- .unicastDecodeCapability = lc3Capability,
- .broadcastCapability = kInvalidBroadcastCapability});
- }
- }
+ kDefaultOffloadLeAudioCapabilities =
+ BluetoothLeAudioCodecsProvider::GetLeAudioCodecCapabilities();
}
return kDefaultOffloadLeAudioCapabilities;