Merge changes If47a6350,Ib795d8d8 am: 2d58918e0a am: eb38a57122 am: ada957e41d am: 15a8e39b17 (c185af44) · Commits · e / os / android_packages_modules_Bluetooth

android/app/jni/com_android_bluetooth_le_audio.cpp

+477 −3

Original line number	Diff line number	Diff line
		@@ -53,6 +53,42 @@ static struct {
		jmethodID getCodecType;
		} android_bluetooth_BluetoothLeAudioCodecConfig;

		static struct {
		jclass clazz;
		jmethodID constructor;
		} android_bluetooth_BluetoothLeAudioCodecConfigMetadata;

		static struct {
		jclass clazz;
		jmethodID constructor;
		jmethodID add;
		} java_util_ArrayList;

		static struct {
		jclass clazz;
		jmethodID constructor;
		} android_bluetooth_BluetoothLeBroadcastChannel;

		static struct {
		jclass clazz;
		jmethodID constructor;
		} android_bluetooth_BluetoothLeBroadcastSubgroup;

		static struct {
		jclass clazz;
		jmethodID constructor;
		} android_bluetooth_BluetoothLeAudioContentMetadata;

		static struct {
		jclass clazz;
		jmethodID constructor;
		} android_bluetooth_BluetoothLeBroadcastMetadata;

		static struct {
		jclass clazz;
		jmethodID constructor;
		} android_bluetooth_BluetoothDevice;

		static LeAudioClientInterface* sLeAudioClientInterface = nullptr;
		static std::shared_timed_mutex interface_mutex;

		@@ -496,6 +532,7 @@ static JNINativeMethod sMethods[] = {
		static jmethodID method_onBroadcastCreated;
		static jmethodID method_onBroadcastDestroyed;
		static jmethodID method_onBroadcastStateChanged;
		static jmethodID method_onBroadcastMetadataChanged;

		static LeAudioBroadcasterInterface* sLeAudioBroadcasterInterface = nullptr;
		static std::shared_timed_mutex sBroadcasterInterfaceMutex;
		@@ -503,6 +540,297 @@ static std::shared_timed_mutex sBroadcasterInterfaceMutex;
		static jobject sBroadcasterCallbacksObj = nullptr;
		static std::shared_timed_mutex sBroadcasterCallbacksMutex;

		#define VEC_UINT8_TO_UINT32(vec) \
		((vec.data()[3] << 24) + (vec.data()[2] << 16) + (vec.data()[1] << 8) + \
		vec.data()[0])

		size_t RawPacketSize(const std::map<uint8_t, std::vector<uint8_t>>& values) {
		size_t bytes = 0;
		for (auto const& value : values) {
		bytes += (/* ltv_len + ltv_type */ 2 + value.second.size());
		}
		return bytes;
		}

		jbyteArray prepareRawLtvArray(
		JNIEnv* env, const std::map<uint8_t, std::vector<uint8_t>>& metadata) {
		auto raw_meta_size = RawPacketSize(metadata);

		jbyteArray raw_metadata = env->NewByteArray(raw_meta_size);
		if (!raw_metadata) {
		LOG(ERROR) << "Failed to create new jbyteArray for raw LTV";
		return nullptr;
		}

		jsize offset = 0;
		for (auto const& kv_pair : metadata) {
		// Length
		const jbyte ltv_sz = kv_pair.second.size() + 1;
		env->SetByteArrayRegion(raw_metadata, offset, 1, &ltv_sz);
		offset += 1;
		// Type
		env->SetByteArrayRegion(raw_metadata, offset, 1,
		(const jbyte*)&kv_pair.first);
		offset += 1;
		// Value
		env->SetByteArrayRegion(raw_metadata, offset, 1,
		(const jbyte*)kv_pair.second.data());
		offset += kv_pair.second.size();
		}

		return raw_metadata;
		}

		static jlong getAudioLocationOrDefault(
		const std::map<uint8_t, std::vector<uint8_t>>& metadata,
		jlong default_location) {
		if (metadata.count(
		bluetooth::le_audio::kLeAudioCodecLC3TypeAudioChannelAllocation) == 0)
		return default_location;

		auto& vec = metadata.at(
		bluetooth::le_audio::kLeAudioCodecLC3TypeAudioChannelAllocation);
		return VEC_UINT8_TO_UINT32(vec);
		}

		jobject prepareLeAudioCodecConfigMetadataObject(
		JNIEnv* env, const std::map<uint8_t, std::vector<uint8_t>>& metadata) {
		jlong audio_location = getAudioLocationOrDefault(metadata, -1);
		ScopedLocalRef<jbyteArray> raw_metadata(env,
		prepareRawLtvArray(env, metadata));
		if (!raw_metadata.get()) {
		LOG(ERROR) << "Failed to create raw metadata jbyteArray";
		return nullptr;
		}

		jobject obj = env->NewObject(
		android_bluetooth_BluetoothLeAudioCodecConfigMetadata.clazz,
		android_bluetooth_BluetoothLeAudioCodecConfigMetadata.constructor,
		audio_location, raw_metadata.get());

		return obj;
		}

		jobject prepareLeBroadcastChannelObject(
		JNIEnv* env,
		const bluetooth::le_audio::BasicAudioAnnouncementBisConfig& bis_config) {
		ScopedLocalRef<jobject> meta_object(
		env, prepareLeAudioCodecConfigMetadataObject(
		env, bis_config.codec_specific_params));
		if (!meta_object.get()) {
		LOG(ERROR) << "Failed to create new metadata object for bis config";
		return nullptr;
		}

		jobject obj =
		env->NewObject(android_bluetooth_BluetoothLeBroadcastChannel.clazz,
		android_bluetooth_BluetoothLeBroadcastChannel.constructor,
		false, bis_config.bis_index, meta_object.get());

		return obj;
		}

		jobject prepareLeAudioContentMetadataObject(
		JNIEnv* env, const std::map<uint8_t, std::vector<uint8_t>>& metadata) {
		jstring program_info_str = nullptr;
		if (metadata.count(bluetooth::le_audio::kLeAudioMetadataTypeProgramInfo)) {
		program_info_str = env->NewStringUTF(
		(const char*)(metadata
		.at(bluetooth::le_audio::
		kLeAudioMetadataTypeProgramInfo)
		.data()));
		if (!program_info_str) {
		LOG(ERROR) << "Failed to create new preset name String for preset name";
		return nullptr;
		}
		}

		jstring language_str = nullptr;
		if (metadata.count(bluetooth::le_audio::kLeAudioMetadataTypeLanguage)) {
		language_str = env->NewStringUTF(
		(const char*)(metadata
		.at(bluetooth::le_audio::kLeAudioMetadataTypeLanguage)
		.data()));
		if (!language_str) {
		LOG(ERROR) << "Failed to create new preset name String for language";
		return nullptr;
		}
		}

		// This can be nullptr
		ScopedLocalRef<jbyteArray> raw_metadata(env,
		prepareRawLtvArray(env, metadata));
		if (!raw_metadata.get()) {
		LOG(ERROR) << "Failed to create raw_metadata jbyteArray";
		return nullptr;
		}

		jobject obj = env->NewObject(
		android_bluetooth_BluetoothLeAudioContentMetadata.clazz,
		android_bluetooth_BluetoothLeAudioContentMetadata.constructor,
		program_info_str, language_str, raw_metadata.get());

		if (program_info_str) {
		env->DeleteLocalRef(program_info_str);
		}

		if (language_str) {
		env->DeleteLocalRef(language_str);
		}

		return obj;
		}

		jobject prepareLeBroadcastChannelListObject(
		JNIEnv* env,
		const std::vector<bluetooth::le_audio::BasicAudioAnnouncementBisConfig>&
		bis_configs) {
		jobject array = env->NewObject(java_util_ArrayList.clazz,
		java_util_ArrayList.constructor);
		if (!array) {
		LOG(ERROR) << "Failed to create array for subgroups";
		return nullptr;
		}

		for (const auto& el : bis_configs) {
		ScopedLocalRef<jobject> channel_obj(
		env, prepareLeBroadcastChannelObject(env, el));
		if (!channel_obj.get()) {
		LOG(ERROR) << "Failed to create new channel object";
		return nullptr;
		}

		env->CallBooleanMethod(array, java_util_ArrayList.add, channel_obj.get());
		}
		return array;
		}

		jobject prepareLeBroadcastSubgroupObject(
		JNIEnv* env,
		const bluetooth::le_audio::BasicAudioAnnouncementSubgroup& subgroup) {
		// Serialize codec ID
		jlong jlong_codec_id =
		subgroup.codec_config.codec_id \|
		((jlong)subgroup.codec_config.vendor_company_id << 16) \|
		((jlong)subgroup.codec_config.vendor_codec_id << 32);

		ScopedLocalRef<jobject> codec_config_meta_obj(
		env, prepareLeAudioCodecConfigMetadataObject(
		env, subgroup.codec_config.codec_specific_params));
		if (!codec_config_meta_obj.get()) {
		LOG(ERROR) << "Failed to create new codec config metadata";
		return nullptr;
		}

		ScopedLocalRef<jobject> content_meta_obj(
		env, prepareLeAudioContentMetadataObject(env, subgroup.metadata));
		if (!content_meta_obj.get()) {
		LOG(ERROR) << "Failed to create new codec config metadata";
		return nullptr;
		}

		ScopedLocalRef<jobject> channel_list_obj(
		env, prepareLeBroadcastChannelListObject(env, subgroup.bis_configs));
		if (!channel_list_obj.get()) {
		LOG(ERROR) << "Failed to create new codec config metadata";
		return nullptr;
		}

		// Create the subgroup
		return env->NewObject(
		android_bluetooth_BluetoothLeBroadcastSubgroup.clazz,
		android_bluetooth_BluetoothLeBroadcastSubgroup.constructor,
		jlong_codec_id, codec_config_meta_obj.get(), content_meta_obj.get(),
		channel_list_obj.get());
		}

		jobject prepareLeBroadcastSubgroupListObject(
		JNIEnv* env,
		const std::vector<bluetooth::le_audio::BasicAudioAnnouncementSubgroup>&
		subgroup_configs) {
		jobject array = env->NewObject(java_util_ArrayList.clazz,
		java_util_ArrayList.constructor);
		if (!array) {
		LOG(ERROR) << "Failed to create array for subgroups";
		return nullptr;
		}

		for (const auto& el : subgroup_configs) {
		ScopedLocalRef<jobject> subgroup_obj(
		env, prepareLeBroadcastSubgroupObject(env, el));
		if (!subgroup_obj.get()) {
		LOG(ERROR) << "Failed to create new subgroup object";
		return nullptr;
		}

		env->CallBooleanMethod(array, java_util_ArrayList.add, subgroup_obj.get());
		}
		return array;
		}

		jobject prepareBluetoothDeviceObject(JNIEnv* env, const RawAddress& addr,
		int addr_type) {
		// The address string has to be uppercase or the BluetoothDevice constructor
		// will treat it as invalid.
		auto addr_str = addr.ToString();
		std::transform(addr_str.begin(), addr_str.end(), addr_str.begin(),
		[](unsigned char c) { return std::toupper(c); });

		ScopedLocalRef<jstring> addr_jstr(env, env->NewStringUTF(addr_str.c_str()));
		if (!addr_jstr.get()) {
		LOG(ERROR) << "Failed to create new preset name String for preset name";
		return nullptr;
		}

		return env->NewObject(android_bluetooth_BluetoothDevice.clazz,
		android_bluetooth_BluetoothDevice.constructor,
		addr_jstr.get(), (jint)addr_type);
		}

		jobject prepareBluetoothLeBroadcastMetadataObject(
		JNIEnv* env,
		const bluetooth::le_audio::BroadcastMetadata& broadcast_metadata) {
		ScopedLocalRef<jobject> device_obj(
		env, prepareBluetoothDeviceObject(env, broadcast_metadata.addr,
		broadcast_metadata.addr_type));
		if (!device_obj.get()) {
		LOG(ERROR) << "Failed to create new BluetoothDevice";
		return nullptr;
		}

		ScopedLocalRef<jobject> subgroup_list_obj(
		env,
		prepareLeBroadcastSubgroupListObject(
		env, broadcast_metadata.basic_audio_announcement.subgroup_configs));
		if (!subgroup_list_obj.get()) {
		LOG(ERROR) << "Failed to create new Subgroup array";
		return nullptr;
		}

		ScopedLocalRef<jbyteArray> code(env, env->NewByteArray(sizeof(RawAddress)));
		if (!code.get()) {
		LOG(ERROR) << "Failed to create new jbyteArray for the broadcast code";
		return nullptr;
		}

		if (broadcast_metadata.broadcast_code) {
		env->SetByteArrayRegion(
		code.get(), 0, sizeof(RawAddress),
		(jbyte*)broadcast_metadata.broadcast_code.value().data());
		}

		return env->NewObject(
		android_bluetooth_BluetoothLeBroadcastMetadata.clazz,
		android_bluetooth_BluetoothLeBroadcastMetadata.constructor,
		(jint)broadcast_metadata.addr_type, device_obj.get(),
		(jint)broadcast_metadata.adv_sid, (jint)broadcast_metadata.broadcast_id,
		(jint)broadcast_metadata.pa_interval,
		broadcast_metadata.broadcast_code ? true : false,
		broadcast_metadata.broadcast_code ? code.get() : nullptr,
		(jint)broadcast_metadata.basic_audio_announcement.presentation_delay,
		subgroup_list_obj.get());
		}

		class LeAudioBroadcasterCallbacksImpl : public LeAudioBroadcasterCallbacks {
		public:
		~LeAudioBroadcasterCallbacksImpl() = default;
		@@ -544,6 +872,24 @@ class LeAudioBroadcasterCallbacksImpl : public LeAudioBroadcasterCallbacks {
		(jint)broadcast_id,
		(jint) static_cast<std::underlying_type<BroadcastState>::type>(state));
		}

		void OnBroadcastMetadataChanged(uint32_t broadcast_id,
		const bluetooth::le_audio::BroadcastMetadata&
		broadcast_metadata) override {
		LOG(INFO) << __func__;

		std::shared_lock<std::shared_timed_mutex> lock(sBroadcasterCallbacksMutex);
		CallbackEnv sCallbackEnv(__func__);

		ScopedLocalRef<jobject> metadata_obj(
		sCallbackEnv.get(), prepareBluetoothLeBroadcastMetadataObject(
		sCallbackEnv.get(), broadcast_metadata));

		if (!sCallbackEnv.valid() \|\| sBroadcasterCallbacksObj == nullptr) return;
		sCallbackEnv->CallVoidMethod(sBroadcasterCallbacksObj,
		method_onBroadcastMetadataChanged,
		(jint)broadcast_id, metadata_obj.get());
		}
		};

		static LeAudioBroadcasterCallbacksImpl sLeAudioBroadcasterCallbacks;
		@@ -555,6 +901,52 @@ static void BroadcasterClassInitNative(JNIEnv* env, jclass clazz) {
		env->GetMethodID(clazz, "onBroadcastDestroyed", "(I)V");
		method_onBroadcastStateChanged =
		env->GetMethodID(clazz, "onBroadcastStateChanged", "(II)V");
		method_onBroadcastMetadataChanged =
		env->GetMethodID(clazz, "onBroadcastMetadataChanged",
		"(ILandroid/bluetooth/BluetoothLeBroadcastMetadata;)V");

		jclass jniArrayListClass = env->FindClass("java/util/ArrayList");
		java_util_ArrayList.constructor =
		env->GetMethodID(jniArrayListClass, "<init>", "()V");
		java_util_ArrayList.add =
		env->GetMethodID(jniArrayListClass, "add", "(Ljava/lang/Object;)Z");

		jclass jniBluetoothLeAudioCodecConfigMetadataClass =
		env->FindClass("android/bluetooth/BluetoothLeAudioCodecConfigMetadata");
		android_bluetooth_BluetoothLeAudioCodecConfigMetadata.constructor =
		env->GetMethodID(jniBluetoothLeAudioCodecConfigMetadataClass, "<init>",
		"(J[B)V");

		jclass jniBluetoothLeAudioContentMetadataClass =
		env->FindClass("android/bluetooth/BluetoothLeAudioContentMetadata");
		android_bluetooth_BluetoothLeAudioContentMetadata.constructor =
		env->GetMethodID(jniBluetoothLeAudioContentMetadataClass, "<init>",
		"(Ljava/lang/String;Ljava/lang/String;[B)V");

		jclass jniBluetoothLeBroadcastChannelClass =
		env->FindClass("android/bluetooth/BluetoothLeBroadcastChannel");
		android_bluetooth_BluetoothLeBroadcastChannel.constructor = env->GetMethodID(
		jniBluetoothLeBroadcastChannelClass, "<init>",
		"(ZILandroid/bluetooth/BluetoothLeAudioCodecConfigMetadata;)V");

		jclass jniBluetoothLeBroadcastSubgroupClass =
		env->FindClass("android/bluetooth/BluetoothLeBroadcastSubgroup");
		android_bluetooth_BluetoothLeBroadcastSubgroup.constructor = env->GetMethodID(
		jniBluetoothLeBroadcastSubgroupClass, "<init>",
		"(JLandroid/bluetooth/BluetoothLeAudioCodecConfigMetadata;"
		"Landroid/bluetooth/BluetoothLeAudioContentMetadata;"
		"Ljava/util/List;)V");

		jclass jniBluetoothDeviceClass =
		env->FindClass("android/bluetooth/BluetoothDevice");
		android_bluetooth_BluetoothDevice.constructor = env->GetMethodID(
		jniBluetoothDeviceClass, "<init>", "(Ljava/lang/String;I)V");

		jclass jniBluetoothLeBroadcastMetadataClass =
		env->FindClass("android/bluetooth/BluetoothLeBroadcastMetadata");
		android_bluetooth_BluetoothLeBroadcastMetadata.constructor = env->GetMethodID(
		jniBluetoothLeBroadcastMetadataClass, "<init>",
		"(ILandroid/bluetooth/BluetoothDevice;IIIZ[BILjava/util/List;)V");
		}

		static void BroadcasterInitNative(JNIEnv* env, jobject object) {
		@@ -569,6 +961,65 @@ static void BroadcasterInitNative(JNIEnv* env, jobject object) {
		return;
		}

		android_bluetooth_BluetoothDevice.clazz = (jclass)env->NewGlobalRef(
		env->FindClass("android/bluetooth/BluetoothDevice"));
		if (android_bluetooth_BluetoothDevice.clazz == nullptr) {
		LOG(ERROR) << "Failed to allocate Global Ref for BluetoothDevice class";
		return;
		}

		java_util_ArrayList.clazz =
		(jclass)env->NewGlobalRef(env->FindClass("java/util/ArrayList"));
		if (java_util_ArrayList.clazz == nullptr) {
		LOG(ERROR) << "Failed to allocate Global Ref for ArrayList class";
		return;
		}

		android_bluetooth_BluetoothLeAudioCodecConfigMetadata.clazz =
		(jclass)env->NewGlobalRef(env->FindClass(
		"android/bluetooth/BluetoothLeAudioCodecConfigMetadata"));
		if (android_bluetooth_BluetoothLeAudioCodecConfigMetadata.clazz == nullptr) {
		LOG(ERROR) << "Failed to allocate Global Ref for "
		"BluetoothLeAudioCodecConfigMetadata class";
		return;
		}

		android_bluetooth_BluetoothLeAudioContentMetadata.clazz =
		(jclass)env->NewGlobalRef(
		env->FindClass("android/bluetooth/BluetoothLeAudioContentMetadata"));
		if (android_bluetooth_BluetoothLeAudioContentMetadata.clazz == nullptr) {
		LOG(ERROR) << "Failed to allocate Global Ref for "
		"BluetoothLeAudioContentMetadata class";
		return;
		}

		android_bluetooth_BluetoothLeBroadcastSubgroup.clazz =
		(jclass)env->NewGlobalRef(
		env->FindClass("android/bluetooth/BluetoothLeBroadcastSubgroup"));
		if (android_bluetooth_BluetoothLeBroadcastSubgroup.clazz == nullptr) {
		LOG(ERROR) << "Failed to allocate Global Ref for "
		"BluetoothLeBroadcastSubgroup class";
		return;
		}

		android_bluetooth_BluetoothLeBroadcastChannel.clazz =
		(jclass)env->NewGlobalRef(
		env->FindClass("android/bluetooth/BluetoothLeBroadcastChannel"));
		if (android_bluetooth_BluetoothLeBroadcastChannel.clazz == nullptr) {
		LOG(ERROR) << "Failed to allocate Global Ref for "
		"BluetoothLeBroadcastChannel class";
		return;
		}

		android_bluetooth_BluetoothLeBroadcastMetadata.clazz =
		(jclass)env->NewGlobalRef(
		env->FindClass("android/bluetooth/BluetoothLeBroadcastMetadata"));
		if (android_bluetooth_BluetoothLeBroadcastMetadata.clazz == nullptr) {
		LOG(ERROR) << "Failed to allocate Global Ref for "
		"BluetoothLeBroadcastMetadata class";
		return;
		}

		if (sBroadcasterCallbacksObj != nullptr) {
		LOG(INFO) << "Cleaning up LeAudio Broadcaster callback object";
		env->DeleteGlobalRef(sBroadcasterCallbacksObj);
		@@ -618,6 +1069,28 @@ static void BroadcasterCleanupNative(JNIEnv* env, jobject object) {
		return;
		}

		env->DeleteGlobalRef(java_util_ArrayList.clazz);
		java_util_ArrayList.clazz = nullptr;

		env->DeleteGlobalRef(android_bluetooth_BluetoothDevice.clazz);
		android_bluetooth_BluetoothDevice.clazz = nullptr;

		env->DeleteGlobalRef(
		android_bluetooth_BluetoothLeAudioCodecConfigMetadata.clazz);
		android_bluetooth_BluetoothLeAudioCodecConfigMetadata.clazz = nullptr;

		env->DeleteGlobalRef(android_bluetooth_BluetoothLeAudioContentMetadata.clazz);
		android_bluetooth_BluetoothLeAudioContentMetadata.clazz = nullptr;

		env->DeleteGlobalRef(android_bluetooth_BluetoothLeBroadcastSubgroup.clazz);
		android_bluetooth_BluetoothLeBroadcastSubgroup.clazz = nullptr;

		env->DeleteGlobalRef(android_bluetooth_BluetoothLeBroadcastChannel.clazz);
		android_bluetooth_BluetoothLeBroadcastChannel.clazz = nullptr;

		env->DeleteGlobalRef(android_bluetooth_BluetoothLeBroadcastMetadata.clazz);
		android_bluetooth_BluetoothLeBroadcastMetadata.clazz = nullptr;

		if (sLeAudioBroadcasterInterface != nullptr) {
		sLeAudioBroadcasterInterface->Cleanup();
		sLeAudioBroadcasterInterface = nullptr;
		@@ -690,11 +1163,12 @@ static void DestroyBroadcastNative(JNIEnv* env, jobject object,
		sLeAudioBroadcasterInterface->DestroyBroadcast(broadcast_id);
		}

		static void GetAllBroadcastStatesNative(JNIEnv* env, jobject object) {
		static void getBroadcastMetadataNative(JNIEnv* env, jobject object,
		jint broadcast_id) {
		LOG(INFO) << __func__;
		std::shared_lock<std::shared_timed_mutex> lock(sBroadcasterInterfaceMutex);
		if (!sLeAudioBroadcasterInterface) return;
		sLeAudioBroadcasterInterface->GetAllBroadcastStates();
		sLeAudioBroadcasterInterface->GetBroadcastMetadata(broadcast_id);
		}

		static JNINativeMethod sBroadcasterMethods[] = {
		@@ -708,7 +1182,7 @@ static JNINativeMethod sBroadcasterMethods[] = {
		{"stopBroadcastNative", "(I)V", (void*)StopBroadcastNative},
		{"pauseBroadcastNative", "(I)V", (void*)PauseBroadcastNative},
		{"destroyBroadcastNative", "(I)V", (void*)DestroyBroadcastNative},
		{"getAllBroadcastStatesNative", "()V", (void*)GetAllBroadcastStatesNative},
		{"getBroadcastMetadataNative", "(I)V", (void*)getBroadcastMetadataNative},
		};

		int register_com_android_bluetooth_le_audio(JNIEnv* env) {

android/app/src/com/android/bluetooth/le_audio/LeAudioBroadcasterNativeInterface.java

+17 −3

Original line number	Diff line number	Diff line
		@@ -24,6 +24,7 @@ package com.android.bluetooth.le_audio;

		import android.bluetooth.BluetoothAdapter;
		import android.bluetooth.BluetoothDevice;
		import android.bluetooth.BluetoothLeBroadcastMetadata;
		import android.util.Log;

		import com.android.bluetooth.Utils;
		@@ -125,6 +126,19 @@ public class LeAudioBroadcasterNativeInterface {
		sendMessageToService(event);
		}

		@VisibleForTesting
		public void onBroadcastMetadataChanged(int broadcastId, BluetoothLeBroadcastMetadata metadata) {
		if (DBG) {
		Log.d(TAG, "onBroadcastMetadataChanged: broadcastId=" + broadcastId);
		}
		LeAudioStackEvent event =
		new LeAudioStackEvent(LeAudioStackEvent.EVENT_TYPE_BROADCAST_METADATA_CHANGED);

		event.valueInt1 = broadcastId;
		event.broadcastMetadata = metadata;
		sendMessageToService(event);
		}

		/**
		* Initializes the native interface.
		*
		@@ -218,8 +232,8 @@ public class LeAudioBroadcasterNativeInterface {
		* Get all LeAudio Broadcast instance states.
		*/
		@VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
		public void getAllBroadcastStates() {
		getAllBroadcastStatesNative();
		public void getBroadcastMetadata(int broadcastId) {
		getBroadcastMetadataNative(broadcastId);
		}

		// Native methods that call into the JNI interface
		@@ -233,5 +247,5 @@ public class LeAudioBroadcasterNativeInterface {
		private native void stopBroadcastNative(int broadcastId);
		private native void pauseBroadcastNative(int broadcastId);
		private native void destroyBroadcastNative(int broadcastId);
		private native void getAllBroadcastStatesNative();
		private native void getBroadcastMetadataNative(int broadcastId);
		}

android/app/src/com/android/bluetooth/le_audio/LeAudioService.java

+17 −4

Original line number	Diff line number	Diff line
		@@ -175,7 +175,8 @@ public class LeAudioService extends ProfileService {

		private final Map<Integer, Integer> mBroadcastStateMap = new HashMap<>();
		private final Map<Integer, Boolean> mBroadcastsPlaybackMap = new HashMap<>();
		private final List<BluetoothLeBroadcastMetadata> mBroadcastMetadataList = new ArrayList<>();
		private final Map<Integer, BluetoothLeBroadcastMetadata> mBroadcastMetadataList =
		new HashMap<>();

		@Override
		protected IProfileServiceBinder initBinder() {
		@@ -674,7 +675,7 @@ public class LeAudioService extends ProfileService {
		* @return list of all know Broadcast metadata
		*/
		public List<BluetoothLeBroadcastMetadata> getAllBroadcastMetadata() {
		return mBroadcastMetadataList;
		return new ArrayList<BluetoothLeBroadcastMetadata>(mBroadcastMetadataList.values());
		}

		/**
		@@ -1151,11 +1152,16 @@ public class LeAudioService extends ProfileService {

		mBroadcastsPlaybackMap.remove(broadcastId);
		mBroadcastStateMap.remove(broadcastId);
		mBroadcastMetadataList.removeIf(m -> broadcastId == m.getBroadcastId());
		mBroadcastMetadataList.remove(broadcastId);

		} else if (stackEvent.type == LeAudioStackEvent.EVENT_TYPE_BROADCAST_STATE) {
		int broadcastId = stackEvent.valueInt1;
		int state = stackEvent.valueInt2;

		/* Request broadcast details if not known yet */
		if (!mBroadcastStateMap.containsKey(broadcastId)) {
		mLeAudioBroadcasterNativeInterface.getBroadcastMetadata(broadcastId);
		}
		mBroadcastStateMap.put(broadcastId, state);

		if (state == LeAudioStackEvent.BROADCAST_STATE_STOPPED) {
		@@ -1216,8 +1222,15 @@ public class LeAudioService extends ProfileService {
		}
		}
		}
		} else if (stackEvent.type == LeAudioStackEvent.EVENT_TYPE_BROADCAST_METADATA_CHANGED) {
		int broadcastId = stackEvent.valueInt1;
		if (stackEvent.broadcastMetadata == null) {
		Log.e(TAG, "Missing Broadcast metadata for broadcastId: " + broadcastId);
		} else {
		mBroadcastMetadataList.put(broadcastId, stackEvent.broadcastMetadata);
		notifyBroadcastMetadataChanged(broadcastId, stackEvent.broadcastMetadata);
		}
		}
		// TODO: Support Broadcast metadata updates

		if (intent != null) {
		sendBroadcast(intent, BLUETOOTH_CONNECT);

android/app/src/com/android/bluetooth/le_audio/LeAudioStackEvent.java

+18 −2

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android/app/tests/unit/src/com/android/bluetooth/le_audio/LeAudioBroadcastServiceTest.java

+114 −1

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