Add filter class (6f473d64) · Commits · e / os / android_frameworks_base

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

+13 −0

Original line number	Diff line number	Diff line
		@@ -66,6 +66,8 @@ public final class Tuner implements AutoCloseable {
		*/
		private native Frontend nativeOpenFrontendById(int id);

		private native Filter nativeOpenFilter(int type, int subType, int bufferSize);


		/**
		* Frontend Callback.
		@@ -99,4 +101,15 @@ public final class Tuner implements AutoCloseable {
		}
		return nativeOpenFrontendById(id);
		}

		protected class Filter {
		int mId;
		private Filter(int id) {
		mId = id;
		}
		}

		private Filter openFilter(int type, int subType, int bufferSize) {
		return nativeOpenFilter(type, subType, bufferSize);
		}
		}

media/jni/android_media_tv_Tuner.cpp

+82 −0

Original line number	Diff line number	Diff line
		@@ -25,19 +25,34 @@

		#pragma GCC diagnostic ignored "-Wunused-function"

		using ::android::hardware::Void;
		using ::android::hardware::hidl_vec;
		using ::android::hardware::tv::tuner::V1_0::DemuxFilterMainType;
		using ::android::hardware::tv::tuner::V1_0::DemuxTsFilterType;
		using ::android::hardware::tv::tuner::V1_0::ITuner;
		using ::android::hardware::tv::tuner::V1_0::Result;

		struct fields_t {
		jfieldID context;
		jmethodID frontendInitID;
		jmethodID filterInitID;
		};

		static fields_t gFields;

		namespace android {
		/////////////// FilterCallback ///////////////////////
		//TODO: implement filter callback
		Return<void> FilterCallback::onFilterEvent(const DemuxFilterEvent& /* filterEvent */) {
		ALOGD("FilterCallback::onFilterEvent");
		return Void();
		}
		Return<void> FilterCallback::onFilterStatus(const DemuxFilterStatus /status/) {
		ALOGD("FilterCallback::onFilterStatu");
		return Void();
		}

		/////////////// Tuner ///////////////////////
		sp<ITuner> JTuner::mTuner;

		JTuner::JTuner(JNIEnv *env, jobject thiz)
		@@ -116,6 +131,54 @@ jobject JTuner::openFrontendById(int id) {
		(jint) jId);
		}

		bool JTuner::openDemux() {
		if (mTuner == nullptr) {
		return false;
		}
		if (mDemux != nullptr) {
		return true;
		}
		mTuner->openDemux([&](Result, uint32_t demuxId, const sp<IDemux>& demux) {
		mDemux = demux;
		mDemuxId = demuxId;
		ALOGD("open demux, id = %d", demuxId);
		});
		if (mDemux == nullptr) {
		return false;
		}
		return true;
		}

		jobject JTuner::openFilter(DemuxFilterType type, int bufferSize) {
		if (mDemux == NULL) {
		if (!openDemux()) {
		return NULL;
		}
		}

		sp<IFilter> f;
		mDemux->openFilter(type, bufferSize, new FilterCallback,
		[&](Result, const sp<IFilter>& filter) {
		f = filter;
		});
		if (f == NULL) {
		ALOGD("Failed to open filter, type = %d", type.mainType);
		return NULL;
		}
		int fId;
		f->getId([&](Result, uint32_t filterId) {
		fId = filterId;
		});
		mFilters[fId] = f;

		JNIEnv *env = AndroidRuntime::getJNIEnv();
		return env->NewObject(
		env->FindClass("android/media/tv/tuner/Tuner$Filter"),
		gFields.filterInitID,
		mObject,
		(jint) fId);
		}

		} // namespace android

		////////////////////////////////////////////////////////////////////////////////
		@@ -149,6 +212,10 @@ static void android_media_tv_Tuner_native_init(JNIEnv *env) {

		jclass frontendClazz = env->FindClass("android/media/tv/tuner/Tuner$Frontend");
		gFields.frontendInitID = env->GetMethodID(frontendClazz, "<init>", "(I)V");

		jclass filterClazz = env->FindClass("android/media/tv/tuner/Tuner$Filter");
		gFields.filterInitID =
		env->GetMethodID(filterClazz, "<init>", "(Landroid/media/tv/tuner/Tuner;I)V");
		}

		static void android_media_tv_Tuner_native_setup(JNIEnv *env, jobject thiz) {
		@@ -166,6 +233,19 @@ static jobject android_media_tv_Tuner_open_frontend_by_id(JNIEnv *env, jobject t
		return tuner->openFrontendById(id);
		}

		static jobject android_media_tv_Tuner_open_filter(
		JNIEnv *env, jobject thiz, jint type, jint subType, jint bufferSize) {
		sp<JTuner> tuner = getTuner(env, thiz);
		DemuxFilterType filterType {
		.mainType = static_cast<DemuxFilterMainType>(type),
		};

		// TODO: other sub types
		filterType.subType.tsFilterType(static_cast<DemuxTsFilterType>(subType));

		return tuner->openFilter(filterType, bufferSize);
		}

		static const JNINativeMethod gMethods[] = {
		{ "nativeInit", "()V", (void *)android_media_tv_Tuner_native_init },
		{ "nativeSetup", "()V", (void *)android_media_tv_Tuner_native_setup },
		@@ -173,6 +253,8 @@ static const JNINativeMethod gMethods[] = {
		(void *)android_media_tv_Tuner_get_frontend_ids },
		{ "nativeOpenFrontendById", "(I)Landroid/media/tv/tuner/Tuner$Frontend;",
		(void *)android_media_tv_Tuner_open_frontend_by_id },
		{ "nativeOpenFilter", "(III)Landroid/media/tv/tuner/Tuner$Filter;",
		(void *)android_media_tv_Tuner_open_filter },
		};

		static int register_android_media_tv_Tuner(JNIEnv *env) {

media/jni/android_media_tv_Tuner.h

+18 −0

Original line number	Diff line number	Diff line
		@@ -18,22 +18,37 @@
		#define _ANDROID_MEDIA_TV_TUNER_H_

		#include <android/hardware/tv/tuner/1.0/ITuner.h>
		#include <unordered_map>
		#include <utils/RefBase.h>

		#include "jni.h"

		using ::android::hardware::Return;
		using ::android::hardware::tv::tuner::V1_0::DemuxFilterEvent;
		using ::android::hardware::tv::tuner::V1_0::DemuxFilterStatus;
		using ::android::hardware::tv::tuner::V1_0::DemuxFilterType;
		using ::android::hardware::tv::tuner::V1_0::FrontendId;
		using ::android::hardware::tv::tuner::V1_0::IDemux;
		using ::android::hardware::tv::tuner::V1_0::IFilter;
		using ::android::hardware::tv::tuner::V1_0::IFilterCallback;
		using ::android::hardware::tv::tuner::V1_0::IFrontend;
		using ::android::hardware::tv::tuner::V1_0::ITuner;

		namespace android {

		struct FilterCallback : public IFilterCallback {
		virtual Return<void> onFilterEvent(const DemuxFilterEvent& filterEvent);
		virtual Return<void> onFilterStatus(const DemuxFilterStatus status);
		};

		struct JTuner : public RefBase {
		JTuner(JNIEnv *env, jobject thiz);
		sp<ITuner> getTunerService();
		jobject getFrontendIds();
		jobject openFrontendById(int id);
		jobject openFilter(DemuxFilterType type, int bufferSize);
		protected:
		bool openDemux();
		virtual ~JTuner();

		private:
		@@ -41,6 +56,9 @@ private:
		jweak mObject;
		static sp<ITuner> mTuner;
		sp<IFrontend> mFe;
		sp<IDemux> mDemux;
		int mDemuxId;
		std::unordered_map<int, sp<IFilter>> mFilters;
		};

		} // namespace android