Add API to filter out unnecessary PIDs from frontend output. (cfd146f5) · Commits · e / os / android_frameworks_base

core/api/system-current.txt

+1 −0

Original line number	Diff line number	Diff line
		@@ -6495,6 +6495,7 @@ package android.media.tv.tuner {
		method @Nullable public android.media.tv.tuner.Lnb openLnbByName(@NonNull String, @NonNull java.util.concurrent.Executor, @NonNull android.media.tv.tuner.LnbCallback);
		method @Nullable @RequiresPermission(android.Manifest.permission.ACCESS_TV_SHARED_FILTER) public static android.media.tv.tuner.filter.SharedFilter openSharedFilter(@NonNull android.content.Context, @NonNull String, @NonNull java.util.concurrent.Executor, @NonNull android.media.tv.tuner.filter.SharedFilterCallback);
		method @Nullable public android.media.tv.tuner.filter.TimeFilter openTimeFilter();
		method public int removeOutputPid(@IntRange(from=0) int);
		method public int scan(@NonNull android.media.tv.tuner.frontend.FrontendSettings, int, @NonNull java.util.concurrent.Executor, @NonNull android.media.tv.tuner.frontend.ScanCallback);
		method public int setLnaEnabled(boolean);
		method public int setMaxNumberOfFrontends(int, @IntRange(from=0) int);

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

+31 −1

Original line number	Diff line number	Diff line
		@@ -691,7 +691,7 @@ public class Tuner implements AutoCloseable {
		private native String nativeGetFrontendHardwareInfo();
		private native int nativeSetMaxNumberOfFrontends(int frontendType, int maxNumber);
		private native int nativeGetMaxNumberOfFrontends(int frontendType);

		private native int nativeRemoveOutputPid(int pid);
		private native Lnb nativeOpenLnbByHandle(int handle);
		private native Lnb nativeOpenLnbByName(String name);

		@@ -1238,6 +1238,36 @@ public class Tuner implements AutoCloseable {
		}
		}

		/**
		* Filter out unnecessary PID (packet identifier) from frontend output.
		*
		* <p>It is used by the client to remove some video or audio PIDs of other program to reduce the
		* total amount of recorded TS.
		*
		* <p>This API is only supported by Tuner HAL 2.0 or higher. Unsupported version would cause
		* no-op. Use {@link TunerVersionChecker#getTunerVersion()} to check the version.
		*
		* @return result status of the operation. Unsupported version or if current active frontend
		* doesn’t support PID filtering out would return {@link #RESULT_UNAVAILABLE}.
		* @throws IllegalStateException if there is no active frontend currently.
		*/
		@Result
		public int removeOutputPid(@IntRange(from = 0) int pid) {
		mFrontendLock.lock();
		try {
		if (!TunerVersionChecker.checkHigherOrEqualVersionTo(
		TunerVersionChecker.TUNER_VERSION_2_0, "Remove output PID")) {
		return RESULT_UNAVAILABLE;
		}
		if (mFrontend == null) {
		throw new IllegalStateException("frontend is not initialized");
		}
		return nativeRemoveOutputPid(pid);
		} finally {
		mFrontendLock.unlock();
		}
		}

		/**
		* Gets the currently initialized and activated frontend information. To get all the available
		* frontend info on the device, use {@link getAvailableFrontendInfos()}.

media/jni/android_media_tv_Tuner.cpp

+16 −0

Original line number	Diff line number	Diff line
		@@ -1595,6 +1595,15 @@ int32_t JTuner::getMaxNumberOfFrontends(int32_t type) {
		return mTunerClient->getMaxNumberOfFrontends(static_cast<FrontendType>(type));
		}

		jint JTuner::removeOutputPid(int32_t pid) {
		if (mFeClient == nullptr) {
		ALOGE("frontend is not initialized");
		return (jint)Result::INVALID_STATE;
		}

		return (jint)mFeClient->removeOutputPid(pid);
		}

		jobject JTuner::openLnbByHandle(int handle) {
		if (mTunerClient == nullptr) {
		return nullptr;
		@@ -4313,6 +4322,11 @@ static jint android_media_tv_Tuner_get_maximum_frontends(JNIEnv *env, jobject th
		return tuner->getMaxNumberOfFrontends(type);
		}

		static jint android_media_tv_Tuner_remove_output_pid(JNIEnv *env, jobject thiz, jint pid) {
		sp<JTuner> tuner = getTuner(env, thiz);
		return tuner->removeOutputPid(pid);
		}

		static jint android_media_tv_Tuner_close_frontend(JNIEnv* env, jobject thiz, jint /* handle */) {
		sp<JTuner> tuner = getTuner(env, thiz);
		return tuner->closeFrontend();
		@@ -4628,6 +4642,8 @@ static const JNINativeMethod gTunerMethods[] = {
		(void *)android_media_tv_Tuner_set_maximum_frontends },
		{ "nativeGetMaxNumberOfFrontends", "(I)I",
		(void *)android_media_tv_Tuner_get_maximum_frontends },
		{ "nativeRemoveOutputPid", "(I)I",
		(void *)android_media_tv_Tuner_remove_output_pid },
		};

		static const JNINativeMethod gFilterMethods[] = {

media/jni/android_media_tv_Tuner.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -203,6 +203,7 @@ struct JTuner : public RefBase {
		Result getFrontendHardwareInfo(string& info);
		jint setMaxNumberOfFrontends(int32_t frontendType, int32_t maxNumber);
		int32_t getMaxNumberOfFrontends(int32_t frontendType);
		jint removeOutputPid(int32_t pid);

		jweak getObject();

media/jni/tuner/FrontendClient.cpp

+9 −0

Original line number	Diff line number	Diff line
		@@ -143,6 +143,15 @@ Result FrontendClient::getHardwareInfo(string& info) {
		return Result::INVALID_STATE;
		}

		Result FrontendClient::removeOutputPid(int32_t pid) {
		if (mTunerFrontend != nullptr) {
		Status s = mTunerFrontend->removeOutputPid(pid);
		return ClientHelper::getServiceSpecificErrorCode(s);
		}

		return Result::INVALID_STATE;
		}

		shared_ptr<ITunerFrontend> FrontendClient::getAidlFrontend() {
		return mTunerFrontend;
		}