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

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