libavfilter/vsrc_buffer.c File Reference

memory buffer source filter More...

#include "avfilter.h"
#include "internal.h"
#include "avcodec.h"
#include "vsrc_buffer.h"
#include "libavutil/imgutils.h"

Go to the source code of this file.

Data Structures

struct BufferSourceContext

Functions

int av_vsrc_buffer_add_video_buffer_ref (AVFilterContext *buffer_filter, AVFilterBufferRef *picref, int flags)

Add video buffer data in picref to buffer_src.

static av_cold int init (AVFilterContext *ctx, const char *args, void *opaque)

static int query_formats (AVFilterContext *ctx)

static int config_props (AVFilterLink *link)

static int request_frame (AVFilterLink *link)

static int poll_frame (AVFilterLink *link)

Variables

AVFilter avfilter_vsrc_buffer

Detailed Description

memory buffer source filter

Definition in file vsrc_buffer.c.

Function Documentation

int av_vsrc_buffer_add_video_buffer_ref ( AVFilterContext * buffer_src,

AVFilterBufferRef * picref,

int flags

)

Add video buffer data in picref 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

Definition at line 41 of file vsrc_buffer.c.

static int config_props ( AVFilterLink * link ) [static]

Definition at line 168 of file vsrc_buffer.c.

static av_cold int init ( AVFilterContext * ctx,

const char * args,

void * opaque

) [static]

Definition at line 134 of file vsrc_buffer.c.

static int poll_frame ( AVFilterLink * link ) [static]

Definition at line 199 of file vsrc_buffer.c.

static int query_formats ( AVFilterContext * ctx ) [static]

Definition at line 159 of file vsrc_buffer.c.

static int request_frame ( AVFilterLink * link ) [static]

Definition at line 180 of file vsrc_buffer.c.

Variable Documentation

AVFilter avfilter_vsrc_buffer

Initial value:

 {
 .name = "buffer",
 .description = NULL_IF_CONFIG_SMALL("Buffer video frames, and make them accessible to the filterchain."),
 .priv_size = sizeof(BufferSourceContext),
 .query_formats = query_formats,
 .init = init,
 .inputs = (const AVFilterPad[]) {{ .name = NULL }},
 .outputs = (const AVFilterPad[]) {{ .name = "default",
 .type = AVMEDIA_TYPE_VIDEO,
 .request_frame = request_frame,
 .poll_frame = poll_frame,
 .config_props = config_props, },
 { .name = NULL}},
}

Definition at line 205 of file vsrc_buffer.c.

Generated on Fri Oct 26 02:43:51 2012 for FFmpeg by doxygen 1.5.8