Merge "Update HAL structure to include offload capability for broadcast" (f1605fae) · Commits · e / os / android_hardware_interfaces

bluetooth/audio/2.2/default/BluetoothAudioProvidersFactory.cpp

+1 −1

Original line number	Diff line number	Diff line
		@@ -233,7 +233,7 @@ Return<void> BluetoothAudioProvidersFactory::getProviderCapabilities_2_2(
		LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH \|\|
		sessionType == V2_1::SessionType::
		LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
		std::vector<LeAudioCodecCapabilitiesPair> db_codec_capabilities =
		std::vector<LeAudioCodecCapabilitiesSetting> db_codec_capabilities =
		android::bluetooth::audio::GetLeAudioOffloadCodecCapabilities(
		sessionType);
		if (db_codec_capabilities.size()) {

bluetooth/audio/2.2/types.hal

+22 −9

Original line number	Diff line number	Diff line
		@@ -83,23 +83,22 @@ safe_union AudioConfiguration {
		safe_union AudioCapabilities {
		PcmParameters pcmCapabilities;
		CodecCapabilities codecCapabilities;
		LeAudioCodecCapabilitiesPair leAudioCapabilities;
		LeAudioCodecCapabilitiesSetting leAudioCapabilities;
		};

		/**
		* Used to specify th le audio capabilities pair of the Hardware offload encode and decode.
		* Used to specify the le audio capabilities for unicast and broadcast hardware offload.
		*/
		struct LeAudioCodecCapabilitiesPair{
		LeAudioMode mode;
		LeAudioCodecCapability encodeCapability;
		LeAudioCodecCapability decodeCapability;
		struct LeAudioCodecCapabilitiesSetting{
		UnicastCapability unicastEncodeCapability;
		UnicastCapability unicastDecodeCapability;
		BroadcastCapability broadcastCapability;
		};

		/**
		* Used to specify the le audio capabilities of the codecs supported by Hardware offload
		* for encode or decode.
		* Used to specify the le audio unicast codec capabilities for hardware offload.
		*/
		struct LeAudioCodecCapability {
		struct UnicastCapability {
		CodecType codecType;
		AudioLocation supportedChannel;

		@@ -112,3 +111,17 @@ struct LeAudioCodecCapability {
		// Should use safe union when there is more than one codec
		Lc3Parameters capabilities;
		};

		/**
		* Used to specify the le audio broadcast codec capabilities for hardware offload.
		*/
		struct BroadcastCapability {
		CodecType codecType;
		AudioLocation supportedChannel;

		// Supported channel count for each stream
		uint8_t channelCountPerStream;

		// Should use safe union when there is more than one codec
		vec<Lc3Parameters> capabilities;
		};

bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.cpp

+32 −28

Original line number	Diff line number	Diff line
		@@ -30,16 +30,20 @@ using ::android::hardware::bluetooth::audio::V2_1::Lc3FrameDuration;
		using ::android::hardware::bluetooth::audio::V2_1::Lc3Parameters;
		using ::android::hardware::bluetooth::audio::V2_1::SampleRate;
		using ::android::hardware::bluetooth::audio::V2_2::AudioLocation;
		using ::android::hardware::bluetooth::audio::V2_2::LeAudioCodecCapabilitiesPair;
		using ::android::hardware::bluetooth::audio::V2_2::LeAudioCodecCapability;
		using ::android::hardware::bluetooth::audio::V2_2::LeAudioMode;
		using ::android::hardware::bluetooth::audio::V2_2::BroadcastCapability;
		using ::android::hardware::bluetooth::audio::V2_2::
		LeAudioCodecCapabilitiesSetting;
		using ::android::hardware::bluetooth::audio::V2_2::UnicastCapability;
		using SessionType_2_1 =
		::android::hardware::bluetooth::audio::V2_1::SessionType;

		// Stores the list of offload supported capability
		std::vector<LeAudioCodecCapabilitiesPair> kDefaultOffloadLeAudioCapabilities;
		std::vector<LeAudioCodecCapabilitiesSetting> kDefaultOffloadLeAudioCapabilities;

		static const LeAudioCodecCapability kInvalidLc3Capability = {
		static const UnicastCapability kInvalidUnicastCapability = {
		.codecType = CodecType::UNKNOWN};

		static const BroadcastCapability kInvalidBroadcastCapability = {
		.codecType = CodecType::UNKNOWN};

		// Default Supported Codecs
		@@ -94,53 +98,53 @@ bool IsOffloadLeAudioConfigurationValid(
		return true;
		}

		LeAudioCodecCapability composeLc3Capability(AudioLocation audioLocation,
		UnicastCapability composeUnicastLc3Capability(AudioLocation audioLocation,
		uint8_t deviceCnt,
		uint8_t channelCount,
		Lc3Parameters capability) {
		return LeAudioCodecCapability{.codecType = CodecType::LC3,
		return UnicastCapability{.codecType = CodecType::LC3,
		.supportedChannel = audioLocation,
		.deviceCount = deviceCnt,
		.channelCountPerDevice = channelCount,
		.capabilities = capability};
		}

		std::vector<LeAudioCodecCapabilitiesPair> GetLeAudioOffloadCodecCapabilities(
		std::vector<LeAudioCodecCapabilitiesSetting> GetLeAudioOffloadCodecCapabilities(
		const SessionType_2_1& session_type) {
		if (session_type !=
		SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
		session_type !=
		SessionType_2_1::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH) {
		return std::vector<LeAudioCodecCapabilitiesPair>(0);
		return std::vector<LeAudioCodecCapabilitiesSetting>(0);
		}

		if (kDefaultOffloadLeAudioCapabilities.empty()) {
		for (auto [audioLocation, deviceCnt, channelCount] :
		supportedDeviceSetting) {
		for (auto capability : supportedLc3CapabilityList) {
		LeAudioCodecCapability lc3Capability = composeLc3Capability(
		UnicastCapability lc3Capability = composeUnicastLc3Capability(
		audioLocation, deviceCnt, channelCount, capability);
		LeAudioCodecCapability lc3MonoCapability =
		composeLc3Capability(monoAudio, 1, 1, capability);
		UnicastCapability lc3MonoDecodeCapability =
		composeUnicastLc3Capability(monoAudio, 1, 1, capability);

		// Adds the capability for encode only
		kDefaultOffloadLeAudioCapabilities.push_back(
		{.mode = LeAudioMode::UNICAST,
		.encodeCapability = lc3Capability,
		.decodeCapability = kInvalidLc3Capability});
		{.unicastEncodeCapability = lc3Capability,
		.unicastDecodeCapability = kInvalidUnicastCapability,
		.broadcastCapability = kInvalidBroadcastCapability});

		// Adds the capability for decode only
		kDefaultOffloadLeAudioCapabilities.push_back(
		{.mode = LeAudioMode::UNICAST,
		.encodeCapability = kInvalidLc3Capability,
		.decodeCapability = lc3Capability});
		{.unicastEncodeCapability = kInvalidUnicastCapability,
		.unicastDecodeCapability = lc3Capability,
		.broadcastCapability = kInvalidBroadcastCapability});

		// Adds the capability for the case that encode and decode exist at the
		// same time
		kDefaultOffloadLeAudioCapabilities.push_back(
		{.mode = LeAudioMode::UNICAST,
		.encodeCapability = lc3Capability,
		.decodeCapability = lc3MonoCapability});
		{.unicastEncodeCapability = lc3Capability,
		.unicastDecodeCapability = lc3MonoDecodeCapability,
		.broadcastCapability = kInvalidBroadcastCapability});
		}
		}
		}

bluetooth/audio/utils/session/BluetoothAudioSupportedCodecsDB_2_2.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -31,7 +31,7 @@ bool IsOffloadLeAudioConfigurationValid(
		const ::android::hardware::bluetooth::audio::V2_2::LeAudioConfiguration&
		le_audio_codec_config);

		std::vector<hardware::bluetooth::audio::V2_2::LeAudioCodecCapabilitiesPair>
		std::vector<hardware::bluetooth::audio::V2_2::LeAudioCodecCapabilitiesSetting>
		GetLeAudioOffloadCodecCapabilities(
		const ::android::hardware::bluetooth::audio::V2_1::SessionType&
		session_type);