AMediaDataSource close API (dabe9d9f) · Commits · e / os / android_frameworks_av

media/ndk/NdkMediaDataSource.cpp

+5 −0

Original line number	Diff line number	Diff line
		@@ -235,5 +235,10 @@ void AMediaDataSource_setClose(AMediaDataSource *mSource, AMediaDataSourceClose
		mSource->close = close;
		}

		EXPORT
		void AMediaDataSource_close(AMediaDataSource *mSource) {
		return mSource->close(mSource->userdata);
		}

		} // extern "C"

media/ndk/include/media/NdkMediaDataSource.h

+28 −11

Original line number	Diff line number	Diff line
		@@ -43,14 +43,9 @@ typedef struct AMediaDataSource AMediaDataSource;
		/*
		* AMediaDataSource's callbacks will be invoked on an implementation-defined thread
		* or thread pool. No guarantees are provided about which thread(s) will be used for
		* callbacks. However, it is guaranteed that AMediaDataSource's callbacks will only
		* ever be invoked by a single thread at a time.
		*
		* There will be a thread synchronization point between each call to ensure that
		* modifications to the state of your AMediaDataSource are visible to future
		* calls. This means you don't need to do your own synchronization unless you're
		* modifying the AMediaDataSource from another thread while it's being used by the
		* framework.
		* callbacks. For example, \|close\| can be invoked from a different thread than the
		* thread invoking \|readAt\|. As such, the Implementations of AMediaDataSource callbacks
		* must be threadsafe.
		*/

		/**
		@@ -74,9 +69,19 @@ typedef ssize_t (*AMediaDataSourceReadAt)(
		typedef ssize_t (AMediaDataSourceGetSize)(void userdata);

		/**
		* Called to close the data source and release associated resources.
		* The NDK media framework guarantees that after \|close\| is called
		* no future callbacks will be invoked on the data source.
		* Called to close the data source, unblock reads, and release associated
		* resources.
		*
		* The NDK media framework guarantees that after the first \|close\| is
		* called, no future callbacks will be invoked on the data source except
		* for \|close\| itself.
		*
		* Closing a data source allows readAt calls that were blocked waiting
		* for I/O data to return promptly.
		*
		* When using AMediaDataSource as input to AMediaExtractor, closing
		* has the effect of unblocking slow reads inside of setDataSource
		* and readSampleData.
		*/
		typedef void (AMediaDataSourceClose)(void userdata);

		@@ -161,6 +166,18 @@ void AMediaDataSource_setClose(

		#endif /__ANDROID_API__ >= 28 /

		#if __ANDROID_API__ >= 29

		/**
		* Close the data source, unblock reads, and release associated resources.
		*
		* Please refer to the definition of AMediaDataSourceClose for
		* additional details.
		*/
		void AMediaDataSource_close(AMediaDataSource*) __INTRODUCED_IN(29);

		#endif /__ANDROID_API__ >= 29 /

		__END_DECLS

		#endif // _NDK_MEDIA_DATASOURCE_H

media/ndk/libmediandk.map.txt

+1 −0

Original line number	Diff line number	Diff line
		@@ -142,6 +142,7 @@ LIBMEDIANDK {
		AMediaDataSource_setReadAt; # introduced=28
		AMediaDataSource_setUserdata; # introduced=28
		AMediaDataSource_newUri; # introduced=29
		AMediaDataSource_close; # introduced=29
		AMediaDrm_closeSession;
		AMediaDrm_createByUUID;
		AMediaDrm_decrypt;