ae2abc69db
noformat and null filters. Originally committed as revision 20443 to svn://svn.ffmpeg.org/ffmpeg/trunk
59 lines
2.0 KiB
C
59 lines
2.0 KiB
C
/*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file libavfilter/vf_null.c
|
|
* null video filter
|
|
*/
|
|
|
|
#include "avfilter.h"
|
|
|
|
static AVFilterPicRef *get_video_buffer(AVFilterLink *link, int perms,
|
|
int w, int h)
|
|
{
|
|
return avfilter_get_video_buffer(link->dst->outputs[0], perms, w, h);
|
|
}
|
|
|
|
static void start_frame(AVFilterLink *link, AVFilterPicRef *picref)
|
|
{
|
|
avfilter_start_frame(link->dst->outputs[0], picref);
|
|
}
|
|
|
|
static void end_frame(AVFilterLink *link)
|
|
{
|
|
avfilter_end_frame(link->dst->outputs[0]);
|
|
}
|
|
|
|
AVFilter avfilter_vf_null = {
|
|
.name = "null",
|
|
.description = NULL_IF_CONFIG_SMALL("Pass the source unchanged to the output."),
|
|
|
|
.priv_size = 0,
|
|
|
|
.inputs = (AVFilterPad[]) {{ .name = "default",
|
|
.type = CODEC_TYPE_VIDEO,
|
|
.get_video_buffer = get_video_buffer,
|
|
.start_frame = start_frame,
|
|
.end_frame = end_frame },
|
|
{ .name = NULL}},
|
|
|
|
.outputs = (AVFilterPad[]) {{ .name = "default",
|
|
.type = CODEC_TYPE_VIDEO, },
|
|
{ .name = NULL}},
|
|
};
|