Файл mediacodec.h

См. исходные тексты.

Классы
struct	AVMediaCodecContext

Определения типов
typedef struct AVMediaCodecContext	AVMediaCodecContext
typedef struct MediaCodecBuffer	AVMediaCodecBuffer

Функции
AVMediaCodecContext *	av_mediacodec_alloc_context (void)
int	av_mediacodec_default_init (AVCodecContext *avctx, AVMediaCodecContext *ctx, void *surface)
void	av_mediacodec_default_free (AVCodecContext *avctx)
int	av_mediacodec_release_buffer (AVMediaCodecBuffer *buffer, int render)
int	av_mediacodec_render_buffer_at_time (AVMediaCodecBuffer *buffer, int64_t time)

Типы

AVMediaCodecContext

typedef struct AVMediaCodecContext AVMediaCodecContext

This structure holds a reference to a android/view/Surface object that will be used as output by the decoder.

AVMediaCodecBuffer

typedef struct MediaCodecBuffer AVMediaCodecBuffer

Opaque structure representing a MediaCodec buffer to render.

См. определение в файле mediacodec.h строка 73

Функции

av_mediacodec_alloc_context()

AVMediaCodecContext* av_mediacodec_alloc_context

(

void

)

Allocate and initialize a MediaCodec context.

When decoding with MediaCodec is finished, the caller must free the MediaCodec context with av_mediacodec_default_free.

Возвращает

a pointer to a newly allocated AVMediaCodecContext on success, NULL otherwise

av_mediacodec_default_init()

int av_mediacodec_default_init	(	AVCodecContext *	avctx,
		AVMediaCodecContext *	ctx,
		void *	surface
	)

Convenience function that sets up the MediaCodec context.

Аргументы

avctx	codec context
ctx	MediaCodec context to initialize
surface	reference to an android/view/Surface

Возвращает

0 on success, < 0 otherwise

av_mediacodec_default_free()

void av_mediacodec_default_free

(

AVCodecContext *

avctx

)

This function must be called to free the MediaCodec context initialized with av_mediacodec_default_init().

Аргументы

avctx

codec context

av_mediacodec_release_buffer()

int av_mediacodec_release_buffer	(	AVMediaCodecBuffer *	buffer,
		int	render
	)

Release a MediaCodec buffer and render it to the surface that is associated with the decoder. This function should only be called once on a given buffer, once released the underlying buffer returns to the codec, thus subsequent calls to this function will have no effect.

Аргументы

buffer	the buffer to render
render	1 to release and render the buffer to the surface or 0 to discard the buffer

Возвращает

0 on success, < 0 otherwise

av_mediacodec_render_buffer_at_time()

int av_mediacodec_render_buffer_at_time	(	AVMediaCodecBuffer *	buffer,
		int64_t	time
	)

Release a MediaCodec buffer and render it at the given time to the surface that is associated with the decoder. The timestamp must be within one second of the current java/lang/System#nanoTime() (which is implemented using CLOCK_MONOTONIC on Android). See the Android MediaCodec documentation of android/media/MediaCodec#releaseOutputBuffer(int,long) for more details.

Аргументы

buffer	the buffer to render
time	timestamp in nanoseconds of when to render the buffer

Возвращает

0 on success, < 0 otherwise