video.c File Reference

#include <string.h>
#include <stdio.h>
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
#include "avfilter.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Functions
AVFilterBufferRef *	ff_null_get_video_buffer (AVFilterLink *link, int perms, int w, int h)
AVFilterBufferRef *	ff_default_get_video_buffer (AVFilterLink *link, int perms, int w, int h)
AVFilterBufferRef *	avfilter_get_video_buffer_ref_from_arrays (uint8_t *const data[4], const int linesize[4], int perms, int w, int h, enum AVPixelFormat format)
	Create a buffer reference wrapped around an already allocated image buffer.
AVFilterBufferRef *	ff_get_video_buffer (AVFilterLink *link, int perms, int w, int h)
	Request a picture buffer with a specific set of permissions.

Function Documentation

AVFilterBufferRef* ff_null_get_video_buffer	(	AVFilterLink *	link,
		int	perms,
		int	w,
		int	h
	)

Definition at line 34 of file video.c.

Referenced by get_video_buffer().

AVFilterBufferRef* ff_default_get_video_buffer	(	AVFilterLink *	link,
		int	perms,
		int	w,
		int	h
	)

Definition at line 39 of file video.c.

Referenced by ff_get_video_buffer(), and get_video_buffer().

AVFilterBufferRef* ff_get_video_buffer	(	AVFilterLink *	link,
		int	perms,
		int	w,
		int	h
	)

Request a picture buffer with a specific set of permissions.

Parameters

link	the output link to the filter from which the buffer will be requested
perms	the required access permissions
w	the minimum width of the buffer to allocate
h	the minimum height of the buffer to allocate

Returns

A reference to the buffer. This must be unreferenced with avfilter_unref_buffer when you are finished with it.

Definition at line 140 of file video.c.

Referenced by config_output(), config_video_output(), ff_copy_buffer_ref(), ff_filter_frame_framed(), ff_null_get_video_buffer(), filter_frame(), geq_filter_frame(), get_video_buffer(), pp_filter_frame(), request_frame(), return_frame(), and source_request_frame().