avcodec.h File Reference

libavcodec/libavfilter gluing utilities More...

#include "libavcodec/avcodec.h"
#include "avfilter.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.
AVFilterBufferRef *	avfilter_get_buffer_ref_from_frame (enum AVMediaType type, const AVFrame *frame, int perms)
	Create and return a buffer reference from the data and properties contained in frame.
int	av_buffersrc_add_frame (AVFilterContext *buffer_src, const AVFrame *frame, int flags)
	Add frame data to buffer_src.

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.

Function Documentation

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 30 of file avcodec.c.

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

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 130 of file avcodec.c.

Referenced by reap_filters(), and video_thread().

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 76 of file avcodec.c.

Referenced by avfilter_get_buffer_ref_from_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.

Parameters

perms

permissions to assign to the new buffer reference

Definition at line 92 of file avcodec.c.

Referenced by avfilter_get_buffer_ref_from_frame().

AVFilterBufferRef* avfilter_get_buffer_ref_from_frame	(	enum AVMediaType	type,
		const AVFrame *	frame,
		int	perms
	)

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

Parameters

perms

permissions to assign to the new buffer reference

Definition at line 116 of file avcodec.c.

Referenced by av_buffersrc_add_frame(), and frame_to_buf().

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

Examples:

doc/examples/filtering_audio.c, and doc/examples/filtering_video.c.

Definition at line 77 of file buffersrc.c.

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