API Support for both synchronous and queued commands, optionally associated metadata. (ae9d5072) · Commits · e / os / android_frameworks_base

cmds/stagefright/stream.cpp

+2 −1

Original line number	Diff line number	Diff line
		@@ -3,6 +3,7 @@
		#include <media/IStreamSource.h>
		#include <media/mediaplayer.h>
		#include <media/stagefright/foundation/ADebug.h>
		#include <media/stagefright/foundation/AMessage.h>

		#include <binder/IServiceManager.h>
		#include <media/IMediaPlayerService.h>
		@@ -56,7 +57,7 @@ void MyStreamSource::onBufferAvailable(size_t index) {

		ssize_t n = read(mFd, mem->pointer(), mem->size());
		if (n <= 0) {
		mListener->queueCommand(IStreamListener::EOS);
		mListener->issueCommand(IStreamListener::EOS, false /* synchronous */);
		} else {
		mListener->queueBuffer(index, n);
		}

+5 −3

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@

		namespace android {

		struct AMessage;
		struct IMemory;
		struct IStreamListener;

		@@ -38,13 +39,14 @@ struct IStreamListener : public IInterface {
		DECLARE_META_INTERFACE(StreamListener);

		enum Command {
		FLUSH,
		EOS,
		DISCONTINUITY,
		EOS
		};

		virtual void queueBuffer(size_t index, size_t size) = 0;
		virtual void queueCommand(Command cmd) = 0;

		virtual void issueCommand(
		Command cmd, bool synchronous, const sp<AMessage> &msg = NULL) = 0;
		};

		////////////////////////////////////////////////////////////////////////////////

+4 −0

Original line number	Diff line number	Diff line
		@@ -26,10 +26,14 @@
		namespace android {

		struct AString;
		struct Parcel;

		struct AMessage : public RefBase {
		AMessage(uint32_t what = 0, ALooper::handler_id target = 0);

		static sp<AMessage> FromParcel(const Parcel &parcel);
		void writeToParcel(Parcel *parcel) const;

		void setWhat(uint32_t what);
		uint32_t what() const;

+2 −1

Original line number	Diff line number	Diff line
		@@ -36,7 +36,8 @@ LOCAL_SRC_FILES:= \
		fixedfft.cpp.arm

		LOCAL_SHARED_LIBRARIES := \
		libui libcutils libutils libbinder libsonivox libicuuc libexpat libsurfaceflinger_client libcamera_client
		libui libcutils libutils libbinder libsonivox libicuuc libexpat \
		libsurfaceflinger_client libcamera_client libstagefright_foundation

		LOCAL_MODULE:= libmedia

+23 −5

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@
		#include <utils/Log.h>

		#include <media/IStreamSource.h>
		#include <media/stagefright/foundation/AMessage.h>

		#include <binder/IMemory.h>
		#include <binder/Parcel.h>
		@@ -33,7 +34,7 @@ enum {

		// IStreamListener
		QUEUE_BUFFER,
		QUEUE_COMMAND,
		ISSUE_COMMAND,
		};

		struct BpStreamSource : public BpInterface<IStreamSource> {
		@@ -125,12 +126,21 @@ struct BpStreamListener : public BpInterface<IStreamListener> {
		remote()->transact(QUEUE_BUFFER, data, &reply, IBinder::FLAG_ONEWAY);
		}

		virtual void queueCommand(Command cmd) {
		virtual void issueCommand(
		Command cmd, bool synchronous, const sp<AMessage> &msg) {
		Parcel data, reply;
		data.writeInterfaceToken(IStreamListener::getInterfaceDescriptor());
		data.writeInt32(static_cast<int32_t>(cmd));
		data.writeInt32(static_cast<int32_t>(synchronous));

		remote()->transact(QUEUE_COMMAND, data, &reply, IBinder::FLAG_ONEWAY);
		if (msg != NULL) {
		data.writeInt32(1);
		msg->writeToParcel(&data);
		} else {
		data.writeInt32(0);
		}

		remote()->transact(ISSUE_COMMAND, data, &reply, IBinder::FLAG_ONEWAY);
		}
		};

		@@ -149,12 +159,20 @@ status_t BnStreamListener::onTransact(
		break;
		}

		case QUEUE_COMMAND:
		case ISSUE_COMMAND:
		{
		CHECK_INTERFACE(IStreamListener, data, reply);
		Command cmd = static_cast<Command>(data.readInt32());

		queueCommand(cmd);
		bool synchronous = static_cast<bool>(data.readInt32());

		sp<AMessage> msg;

		if (data.readInt32()) {
		msg = AMessage::FromParcel(data);
		}

		issueCommand(cmd, synchronous, msg);
		break;
		}