Enable Frontend callback for sharee. (c08a08e3) · Commits · e / os / android_frameworks_base

media/java/android/media/tv/tuner/Tuner.java

+45 −16

Original line number	Diff line number	Diff line
		@@ -285,7 +285,7 @@ public class Tuner implements AutoCloseable {
		@Nullable
		private FrontendInfo mFrontendInfo;
		private Integer mFrontendHandle;
		private Boolean mIsSharedFrontend = false;
		private Tuner mFeOwnerTuner = null;
		private int mFrontendType = FrontendSettings.TYPE_UNDEFINED;
		private int mUserId;
		private Lnb mLnb;
		@@ -442,11 +442,10 @@ public class Tuner implements AutoCloseable {
		mFrontendLock.lock();
		try {
		mTunerResourceManager.shareFrontend(mClientId, tuner.mClientId);
		synchronized (mIsSharedFrontend) {
		mFrontendHandle = tuner.mFrontendHandle;
		mFrontend = tuner.mFrontend;
		mIsSharedFrontend = true;
		}
		mFeOwnerTuner = tuner;
		mFeOwnerTuner.registerFrontendCallbackListener(this);
		mFrontendHandle = mFeOwnerTuner.mFrontendHandle;
		mFrontend = mFeOwnerTuner.mFrontend;
		nativeShareFrontend(mFrontend.mId);
		} finally {
		releaseTRMSLock();
		@@ -512,6 +511,27 @@ public class Tuner implements AutoCloseable {

		private long mNativeContext; // used by native jMediaTuner

		/**
		* Registers a tuner as a listener for frontend callbacks.
		*/
		private void registerFrontendCallbackListener(Tuner tuner) {
		nativeRegisterFeCbListener(tuner.getNativeContext());
		}

		/**
		* Unregisters a tuner as a listener for frontend callbacks.
		*/
		private void unregisterFrontendCallbackListener(Tuner tuner) {
		nativeUnregisterFeCbListener(tuner.getNativeContext());
		}

		/**
		* Returns the pointer to the associated JTuner.
		*/
		long getNativeContext() {
		return mNativeContext;
		}

		/**
		* Releases the Tuner instance.
		*/
		@@ -526,20 +546,22 @@ public class Tuner implements AutoCloseable {
		}
		}

		private void releaseAll() {
		private void releaseFrontend() {
		mFrontendLock.lock();
		try {
		if (mFrontendHandle != null) {
		synchronized (mIsSharedFrontend) {
		if (!mIsSharedFrontend) {
		if (mFeOwnerTuner != null) {
		// unregister self from the Frontend callback
		mFeOwnerTuner.unregisterFrontendCallbackListener(this);
		mFeOwnerTuner = null;
		} else {
		// close resource as owner
		int res = nativeCloseFrontend(mFrontendHandle);
		if (res != Tuner.RESULT_SUCCESS) {
		TunerUtils.throwExceptionForResult(res, "failed to close frontend");
		}
		mTunerResourceManager.releaseFrontend(mFrontendHandle, mClientId);
		}
		mIsSharedFrontend = false;
		}
		FrameworkStatsLog
		.write(FrameworkStatsLog.TV_TUNER_STATE_CHANGED, mUserId,
		FrameworkStatsLog.TV_TUNER_STATE_CHANGED__STATE__UNKNOWN);
		@@ -549,9 +571,14 @@ public class Tuner implements AutoCloseable {
		} finally {
		mFrontendLock.unlock();
		}
		}

		private void releaseAll() {
		releaseFrontend();

		mLnbLock.lock();
		try {
		// mLnb will be non-null only for owner tuner
		if (mLnb != null) {
		mLnb.close();
		}
		@@ -641,6 +668,8 @@ public class Tuner implements AutoCloseable {
		*/
		private native Frontend nativeOpenFrontendByHandle(int handle);
		private native int nativeShareFrontend(int id);
		private native void nativeRegisterFeCbListener(long nativeContext);
		private native void nativeUnregisterFeCbListener(long nativeContext);
		@Result
		private native int nativeTune(int type, FrontendSettings settings);
		private native int nativeStopTune();
		@@ -1276,7 +1305,7 @@ public class Tuner implements AutoCloseable {
		}

		private void onFrontendEvent(int eventType) {
		Log.d(TAG, "Got event from tuning. Event type: " + eventType);
		Log.d(TAG, "Got event from tuning. Event type: " + eventType + " for " + this);
		synchronized (mOnTuneEventLock) {
		if (mOnTuneEventExecutor != null && mOnTuneEventListener != null) {
		mOnTuneEventExecutor.execute(() -> {

media/jni/android_media_tv_Tuner.cpp

+97 −22

Original line number	Diff line number	Diff line
		@@ -947,34 +947,72 @@ FilterClientCallbackImpl::~FilterClientCallbackImpl() {
		}

		/////////////// FrontendClientCallbackImpl ///////////////////////
		FrontendClientCallbackImpl::FrontendClientCallbackImpl(jweak tunerObj) : mObject(tunerObj) {}
		FrontendClientCallbackImpl::FrontendClientCallbackImpl(JTuner* jtuner, jweak listener) {
		ALOGV("FrontendClientCallbackImpl() with listener:%p", listener);
		addCallbackListener(jtuner, listener);
		}

		void FrontendClientCallbackImpl::addCallbackListener(JTuner* jtuner, jweak listener) {
		JNIEnv *env = AndroidRuntime::getJNIEnv();
		jweak listenerRef = env->NewWeakGlobalRef(listener);
		ALOGV("addCallbackListener() with listener:%p and ref:%p @%p", listener, listenerRef, this);
		std::scoped_lock<std::mutex> lock(mMutex);
		mListenersMap[jtuner] = listenerRef;
		}

		void FrontendClientCallbackImpl::removeCallbackListener(JTuner* listener) {
		ALOGV("removeCallbackListener for listener:%p", listener);
		JNIEnv *env = AndroidRuntime::getJNIEnv();
		std::scoped_lock<std::mutex> lock(mMutex);
		if (mListenersMap.find(listener) != mListenersMap.end() && mListenersMap[listener]) {
		env->DeleteWeakGlobalRef(mListenersMap[listener]);
		mListenersMap.erase(listener);
		}
		}

		void FrontendClientCallbackImpl::onEvent(FrontendEventType frontendEventType) {
		ALOGV("FrontendClientCallbackImpl::onEvent, type=%d", frontendEventType);
		JNIEnv *env = AndroidRuntime::getJNIEnv();
		jobject frontend(env->NewLocalRef(mObject));
		std::scoped_lock<std::mutex> lock(mMutex);
		for (const auto& mapEntry : mListenersMap) {
		ALOGV("JTuner:%p, jweak:%p", mapEntry.first, mapEntry.second);
		jobject frontend(env->NewLocalRef(mapEntry.second));
		if (!env->IsSameObject(frontend, nullptr)) {
		env->CallVoidMethod(
		frontend,
		gFields.onFrontendEventID,
		(jint)frontendEventType);
		} else {
		ALOGE("FrontendClientCallbackImpl::onEvent:"
		ALOGW("FrontendClientCallbackImpl::onEvent:"
		"Frontend object has been freed. Ignoring callback.");
		}
		}
		}

		void FrontendClientCallbackImpl::onScanMessage(
		FrontendScanMessageType type, const FrontendScanMessage& message) {
		ALOGV("FrontendClientCallbackImpl::onScanMessage, type=%d", type);
		JNIEnv *env = AndroidRuntime::getJNIEnv();
		jclass clazz = env->FindClass("android/media/tv/tuner/Tuner");
		jobject frontend(env->NewLocalRef(mObject));

		std::scoped_lock<std::mutex> lock(mMutex);
		for (const auto& mapEntry : mListenersMap) {
		jobject frontend(env->NewLocalRef(mapEntry.second));
		if (env->IsSameObject(frontend, nullptr)) {
		ALOGE("FrontendClientCallbackImpl::onScanMessage:"
		"Frontend object has been freed. Ignoring callback.");
		return;
		"Tuner object has been freed. Ignoring callback.");
		continue;
		}
		executeOnScanMessage(env, clazz, frontend, type, message);
		}
		}

		void FrontendClientCallbackImpl::executeOnScanMessage(
		JNIEnv *env, const jclass& clazz, const jobject& frontend,
		FrontendScanMessageType type,
		const FrontendScanMessage& message) {
		ALOGV("FrontendClientCallbackImpl::executeOnScanMessage, type=%d", type);

		switch(type) {
		case FrontendScanMessageType::LOCKED: {
		if (message.get<FrontendScanMessage::Tag::isLocked>()) {
		@@ -1153,11 +1191,14 @@ void FrontendClientCallbackImpl::onScanMessage(
		}

		FrontendClientCallbackImpl::~FrontendClientCallbackImpl() {
		JNIEnv *env = AndroidRuntime::getJNIEnv();
		if (mObject != nullptr) {
		env->DeleteWeakGlobalRef(mObject);
		mObject = nullptr;
		JNIEnv *env = android::AndroidRuntime::getJNIEnv();
		ALOGV("~FrontendClientCallbackImpl()");
		std::scoped_lock<std::mutex> lock(mMutex);
		for (const auto& mapEntry : mListenersMap) {
		ALOGV("deleteRef :%p at @ %p", mapEntry.second, this);
		env->DeleteWeakGlobalRef(mapEntry.second);
		}
		mListenersMap.clear();
		}

		/////////////// Tuner ///////////////////////
		@@ -1176,6 +1217,10 @@ JTuner::JTuner(JNIEnv *env, jobject thiz) : mClass(nullptr) {
		mSharedFeId = (int)Constant::INVALID_FRONTEND_ID;
		}

		jweak JTuner::getObject() {
		return mObject;
		}

		JTuner::~JTuner() {
		if (mFeClient != nullptr) {
		mFeClient->close();
		@@ -1188,6 +1233,7 @@ JTuner::~JTuner() {
		env->DeleteWeakGlobalRef(mObject);
		env->DeleteGlobalRef(mClass);
		mFeClient = nullptr;
		mFeClientCb = nullptr;
		mDemuxClient = nullptr;
		mClass = nullptr;
		mObject = nullptr;
		@@ -1243,9 +1289,8 @@ jobject JTuner::openFrontendByHandle(int feHandle) {
		return nullptr;
		}

		sp<FrontendClientCallbackImpl> feClientCb =
		new FrontendClientCallbackImpl(env->NewWeakGlobalRef(mObject));
		mFeClient->setCallback(feClientCb);
		mFeClientCb = new FrontendClientCallbackImpl(this, mObject);
		mFeClient->setCallback(mFeClientCb);
		// TODO: add more fields to frontend
		return env->NewObject(
		env->FindClass("android/media/tv/tuner/Tuner$Frontend"),
		@@ -1265,6 +1310,18 @@ int JTuner::shareFrontend(int feId) {
		return (int)Result::SUCCESS;
		}

		void JTuner::registerFeCbListener(JTuner* jtuner) {
		if (mFeClientCb != nullptr && jtuner != nullptr) {
		mFeClientCb->addCallbackListener(jtuner, jtuner->getObject());
		}
		}

		void JTuner::unregisterFeCbListener(JTuner* jtuner) {
		if (mFeClientCb != nullptr && jtuner != nullptr) {
		mFeClientCb->removeCallbackListener(jtuner);
		}
		}

		jobject JTuner::getAnalogFrontendCaps(JNIEnv *env, FrontendCapabilities &caps) {
		jclass clazz = env->FindClass("android/media/tv/tuner/frontend/AnalogFrontendCapabilities");
		jmethodID capsInit = env->GetMethodID(clazz, "<init>", "(II)V");
		@@ -3184,6 +3241,20 @@ static int android_media_tv_Tuner_share_frontend(
		return tuner->shareFrontend(id);
		}

		static void android_media_tv_Tuner_register_fe_cb_listener(
		JNIEnv *env, jobject thiz, jlong shareeJTuner) {
		sp<JTuner> tuner = getTuner(env, thiz);
		JTuner jtuner = (JTuner )shareeJTuner;
		tuner->registerFeCbListener(jtuner);
		}

		static void android_media_tv_Tuner_unregister_fe_cb_listener(
		JNIEnv *env, jobject thiz, jlong shareeJTuner) {
		sp<JTuner> tuner = getTuner(env, thiz);
		JTuner jtuner = (JTuner )shareeJTuner;
		tuner->unregisterFeCbListener(jtuner);
		}

		static int android_media_tv_Tuner_tune(JNIEnv *env, jobject thiz, jint type, jobject settings) {
		sp<JTuner> tuner = getTuner(env, thiz);
		FrontendSettings setting = getFrontendSettings(env, type, settings);
		@@ -4346,6 +4417,10 @@ static const JNINativeMethod gTunerMethods[] = {
		(void *)android_media_tv_Tuner_open_frontend_by_handle },
		{ "nativeShareFrontend", "(I)I",
		(void *)android_media_tv_Tuner_share_frontend },
		{ "nativeRegisterFeCbListener", "(J)V",
		(void*)android_media_tv_Tuner_register_fe_cb_listener },
		{ "nativeUnregisterFeCbListener", "(J)V",
		(void*)android_media_tv_Tuner_unregister_fe_cb_listener },
		{ "nativeTune", "(ILandroid/media/tv/tuner/frontend/FrontendSettings;)I",
		(void *)android_media_tv_Tuner_tune },
		{ "nativeStopTune", "()I", (void *)android_media_tv_Tuner_stop_tune },

media/jni/android_media_tv_Tuner.h

+14 −2

Original line number	Diff line number	Diff line
		@@ -149,14 +149,21 @@ private:
		void getRestartEvent(jobjectArray& arr, const int size, const DemuxFilterEvent& event);
		};

		struct JTuner;
		struct FrontendClientCallbackImpl : public FrontendClientCallback {
		FrontendClientCallbackImpl(jweak tunerObj);
		FrontendClientCallbackImpl(JTuner*, jweak);
		~FrontendClientCallbackImpl();
		virtual void onEvent(FrontendEventType frontendEventType);
		virtual void onScanMessage(
		FrontendScanMessageType type, const FrontendScanMessage& message);

		jweak mObject;
		void executeOnScanMessage(JNIEnv *env, const jclass& clazz, const jobject& frontend,
		FrontendScanMessageType type,
		const FrontendScanMessage& message);
		void addCallbackListener(JTuner*, jweak obj);
		void removeCallbackListener(JTuner* jtuner);
		std::unordered_map<JTuner*, jweak> mListenersMap;
		std::mutex mMutex;
		};

		struct JTuner : public RefBase {
		@@ -171,6 +178,8 @@ struct JTuner : public RefBase {
		jobject getFrontendIds();
		jobject openFrontendByHandle(int feHandle);
		int shareFrontend(int feId);
		void registerFeCbListener(JTuner* jtuner);
		void unregisterFeCbListener(JTuner* jtuner);
		jint closeFrontendById(int id);
		jobject getFrontendInfo(int id);
		int tune(const FrontendSettings& settings);
		@@ -192,6 +201,8 @@ struct JTuner : public RefBase {
		jint closeFrontend();
		jint closeDemux();

		jweak getObject();

		protected:
		virtual ~JTuner();

		@@ -200,6 +211,7 @@ private:
		jweak mObject;
		static sp<TunerClient> mTunerClient;
		sp<FrontendClient> mFeClient;
		sp<FrontendClientCallbackImpl> mFeClientCb;
		int mFeId;
		int mSharedFeId;
		sp<LnbClient> mLnbClient;