stagefright: allow plugin to create persistent input surface (f9a2a968) · Commits · e / os / android_frameworks_av

media/libstagefright/MediaCodec.cpp

+7 −0

Original line number	Diff line number	Diff line
		@@ -479,6 +479,13 @@ sp<MediaCodec> MediaCodec::CreateByComponentName(

		// static
		sp<PersistentSurface> MediaCodec::CreatePersistentInputSurface() {
		// allow plugin to create surface
		sp<PersistentSurface> pluginSurface =
		StagefrightPluginLoader::GetCCodecInstance()->createInputSurface();
		if (pluginSurface != nullptr) {
		return pluginSurface;
		}

		OMXClient client;
		if (client.connect() != OK) {
		ALOGE("Failed to connect to OMX to create persistent input surface.");

+8 −1

Original line number	Diff line number	Diff line
		@@ -92,7 +92,14 @@ MediaCodecListBuilderBase *GetCodec2InfoBuilder() {
		}

		std::vector<MediaCodecListBuilderBase *> GetBuilders() {
		std::vector<MediaCodecListBuilderBase *> builders {&sOmxInfoBuilder};
		std::vector<MediaCodecListBuilderBase *> builders;
		// if plugin provides the input surface, we cannot use OMX video encoders.
		// In this case, rely on plugin to provide list of OMX codecs that are usable.
		sp<PersistentSurface> surfaceTest =
		StagefrightPluginLoader::GetCCodecInstance()->createInputSurface();
		if (surfaceTest == nullptr) {
		builders.push_back(&sOmxInfoBuilder);
		}
		builders.push_back(GetCodec2InfoBuilder());
		return builders;
		}

+13 −0

Original line number	Diff line number	Diff line
		@@ -44,6 +44,11 @@ StagefrightPluginLoader::StagefrightPluginLoader(const char *libPath)
		if (mCreateBuilder == nullptr) {
		ALOGD("Failed to find symbol: CreateBuilder (%s)", dlerror());
		}
		mCreateInputSurface = (CodecBase::CreateInputSurfaceFunc)dlsym(
		mLibHandle, "CreateInputSurface");
		if (mCreateBuilder == nullptr) {
		ALOGD("Failed to find symbol: CreateInputSurface (%s)", dlerror());
		}
		}

		StagefrightPluginLoader::~StagefrightPluginLoader() {
		@@ -69,6 +74,14 @@ MediaCodecListBuilderBase *StagefrightPluginLoader::createBuilder() {
		return mCreateBuilder();
		}

		PersistentSurface *StagefrightPluginLoader::createInputSurface() {
		if (mLibHandle == nullptr \|\| mCreateInputSurface == nullptr) {
		ALOGD("Handle or CreateInputSurface symbol is null");
		return nullptr;
		}
		return mCreateInputSurface();
		}

		//static
		const std::unique_ptr<StagefrightPluginLoader> &StagefrightPluginLoader::GetCCodecInstance() {
		Mutex::Autolock _l(sMutex);

+4 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@

		#include <media/stagefright/CodecBase.h>
		#include <media/stagefright/MediaCodecListWriter.h>
		#include <media/stagefright/PersistentSurface.h>
		#include <utils/Mutex.h>

		namespace android {
		@@ -31,6 +32,8 @@ public:

		CodecBase *createCodec();
		MediaCodecListBuilderBase *createBuilder();
		PersistentSurface *createInputSurface();

		private:
		explicit StagefrightPluginLoader(const char *libPath);

		@@ -40,6 +43,7 @@ private:
		void *mLibHandle;
		CodecBase::CreateCodecFunc mCreateCodec;
		MediaCodecListBuilderBase::CreateBuilderFunc mCreateBuilder;
		CodecBase::CreateInputSurfaceFunc mCreateInputSurface;
		};

		} // namespace android

+1 −0

Original line number	Diff line number	Diff line
		@@ -223,6 +223,7 @@ struct CodecBase : public AHandler, /* static */ ColorUtils {
		virtual void signalEndOfInputStream() = 0;

		typedef CodecBase (CreateCodecFunc)(void);
		typedef PersistentSurface (CreateInputSurfaceFunc)(void);

		protected:
		CodecBase() = default;