libavfilter/avcodec.h File Reference

libavcodec/libavfilter gluing utilities More...

#include "libavcodec/avcodec.h"
#include "avfilter.h"
#include "vsrc_buffer.h"

Go to the source code of this file.

Functions
int	avfilter_copy_frame_props (AVFilterBufferRef *dst, const AVFrame *src)
	Copy the frame properties of src to dst, without copying the actual image data.
int	avfilter_copy_buf_props (AVFrame *dst, const AVFilterBufferRef *src)
	Copy the frame properties and data pointers of src to dst, without copying the actual data.
AVFilterBufferRef *	avfilter_get_video_buffer_ref_from_frame (const AVFrame *frame, int perms)
	Create and return a picref reference from the data and properties contained in frame.
AVFilterBufferRef *	avfilter_get_audio_buffer_ref_from_frame (const AVFrame *frame, int perms)
	Create and return a picref reference from the data and properties contained in frame.
int	avfilter_fill_frame_from_audio_buffer_ref (AVFrame *frame, const AVFilterBufferRef *samplesref)
	Fill an AVFrame with the information stored in samplesref.
int	avfilter_fill_frame_from_video_buffer_ref (AVFrame *frame, const AVFilterBufferRef *picref)
	Fill an AVFrame with the information stored in picref.
int	avfilter_fill_frame_from_buffer_ref (AVFrame *frame, const AVFilterBufferRef *ref)
	Fill an AVFrame with information stored in ref.
int	av_buffersrc_add_frame (AVFilterContext *buffer_src, const AVFrame *frame, int flags)
	Add frame data to buffer_src.
int	av_vsrc_buffer_add_frame (AVFilterContext *buffer_src, const AVFrame *frame, int flags)
	Add frame data to buffer_src.

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Detailed Description

libavcodec/libavfilter gluing utilities

This should be included in an application ONLY if the installed libavfilter has been compiled with libavcodec support, otherwise symbols defined below will not be available.

Definition in file avcodec.h.

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Function Documentation

int av_buffersrc_add_frame	(	AVFilterContext *	buffer_src,
		const AVFrame *	frame,
		int	flags
	)

Add frame data to buffer_src.

Parameters:

	buffer_src	pointer to a buffer source context
	frame	a frame, or NULL to mark EOF
	flags	a combination of AV_BUFFERSRC_FLAG_*

Returns:

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

Definition at line 132 of file buffersrc.c.

Referenced by av_buffersrc_write_frame(), decode_audio(), decode_video(), and main().

int av_vsrc_buffer_add_frame	(	AVFilterContext *	buffer_src,
		const AVFrame *	frame,
		int	flags
	)

Add frame data to buffer_src.

Parameters:

	buffer_src	pointer to a buffer source context
	flags	a combination of AV_VSRC_BUF_FLAG_* flags

Returns:

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

Referenced by main().

int avfilter_copy_buf_props	(	AVFrame *	dst,
		const AVFilterBufferRef *	src
	)

Copy the frame properties and data pointers of src to dst, without copying the actual data.

Returns:

0 on success, a negative number on error.

Definition at line 193 of file buffer.c.

Referenced by poll_filters().

int avfilter_copy_frame_props	(	AVFilterBufferRef *	dst,
		const AVFrame *	src
	)

Copy the frame properties of src to dst, without copying the actual image data.

Returns:

0 on success, a negative number on error.

Definition at line 166 of file buffer.c.

Referenced by avfilter_get_audio_buffer_ref_from_frame(), avfilter_get_video_buffer_ref_from_frame(), and decode_video().

int avfilter_fill_frame_from_audio_buffer_ref	(	AVFrame *	frame,
		const AVFilterBufferRef *	samplesref
	)

Fill an AVFrame with the information stored in samplesref.

Parameters:

	frame	an already allocated AVFrame
	samplesref	an audio buffer reference

Returns:

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

Definition at line 55 of file avcodec.c.

Referenced by avfilter_fill_frame_from_buffer_ref().

int avfilter_fill_frame_from_buffer_ref	(	AVFrame *	frame,
		const AVFilterBufferRef *	ref
	)

Fill an AVFrame with information stored in ref.

Parameters:

	frame	an already allocated AVFrame
	ref	a video or audio buffer reference

Returns:

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

Definition at line 95 of file avcodec.c.

int avfilter_fill_frame_from_video_buffer_ref	(	AVFrame *	frame,
		const AVFilterBufferRef *	picref
	)

Fill an AVFrame with the information stored in picref.

Parameters:

	frame	an already allocated AVFrame
	picref	a video buffer reference

Returns:

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

Definition at line 73 of file avcodec.c.

Referenced by avfilter_fill_frame_from_buffer_ref(), poll_filters(), and video_thread().

AVFilterBufferRef* avfilter_get_audio_buffer_ref_from_frame	(	const AVFrame *	frame,
		int	perms
	)

Create and return a picref reference from the data and properties contained in frame.

Parameters:

perms

permissions to assign to the new buffer reference

Definition at line 42 of file avcodec.c.

Referenced by av_buffersrc_add_frame().

AVFilterBufferRef* avfilter_get_video_buffer_ref_from_frame	(	const AVFrame *	frame,
		int	perms
	)

Create and return a picref reference from the data and properties contained in frame.

Parameters:

perms

permissions to assign to the new buffer reference

Definition at line 29 of file avcodec.c.

Referenced by av_buffersrc_add_frame().