libavfilter/buffersink.h File Reference

memory buffer sink API for audio and video More...

#include "avfilter.h"

Go to the source code of this file.

Data Structures
struct	AVBufferSinkParams
	Struct to use for initializing a buffersink context. More...
struct	AVABufferSinkParams
	Struct to use for initializing an abuffersink context. More...
Defines
#define	AV_BUFFERSINK_FLAG_PEEK   1
	Tell av_buffersink_get_buffer_ref() to read video/samples buffer reference, but not remove it from the buffer.
Functions
AVBufferSinkParams *	av_buffersink_params_alloc (void)
	Create an AVBufferSinkParams structure.
AVABufferSinkParams *	av_abuffersink_params_alloc (void)
	Create an AVABufferSinkParams structure.
int	av_buffersink_get_buffer_ref (AVFilterContext *buffer_sink, AVFilterBufferRef **bufref, int flags)
	Get an audio/video buffer data from buffer_sink and put it in bufref.
int	av_buffersink_poll_frame (AVFilterContext *ctx)
	Get the number of immediately available frames.
attribute_deprecated int	av_vsink_buffer_get_video_buffer_ref (AVFilterContext *buffer_sink, AVFilterBufferRef **picref, int flags)

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Detailed Description

memory buffer sink API for audio and video

Definition in file buffersink.h.

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Define Documentation

#define AV_BUFFERSINK_FLAG_PEEK   1

Tell av_buffersink_get_buffer_ref() to read video/samples buffer reference, but not remove it from the buffer.

This is useful if you need only to read a video/samples buffer, without to fetch it.

Definition at line 64 of file buffersink.h.

Referenced by av_buffersink_get_buffer_ref(), and lavfi_read_packet().

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Function Documentation

AVABufferSinkParams* av_abuffersink_params_alloc

(

void

)

Create an AVABufferSinkParams structure.

Must be freed with av_free().

Definition at line 42 of file sink_buffer.c.

Referenced by lavfi_read_header().

int av_buffersink_get_buffer_ref	(	AVFilterContext *	buffer_sink,
		AVFilterBufferRef **	bufref,
		int	flags
	)

Get an audio/video buffer data from buffer_sink and put it in bufref.

This function works with both audio and video buffer sinks.

Parameters:

	buffer_sink	pointer to a buffersink or abuffersink context
	flags	a combination of AV_BUFFERSINK_FLAG_* flags

Returns:

>= 0 in case of success, a negative AVERROR code in case of failure

Definition at line 119 of file sink_buffer.c.

Referenced by av_vsink_buffer_get_video_buffer_ref(), lavfi_read_packet(), transcode_video(), and video_thread().

AVBufferSinkParams* av_buffersink_params_alloc

(

void

)

Create an AVBufferSinkParams structure.

Must be freed with av_free().

Definition at line 31 of file sink_buffer.c.

Referenced by lavfi_read_header().

int av_buffersink_poll_frame

(

AVFilterContext *

ctx

)

Get the number of immediately available frames.

Definition at line 144 of file sink_buffer.c.

Referenced by transcode_video().

attribute_deprecated int av_vsink_buffer_get_video_buffer_ref	(	AVFilterContext *	buffer_sink,
		AVFilterBufferRef **	picref,
		int	flags
	)

Deprecated:

Use av_buffersink_get_buffer_ref() instead.

Definition at line 153 of file sink_buffer.c.

Referenced by main().