2f62a433f2
Lots of video filters use a very simple input or output: An array with a single AVFilterPad whose name is "default" and whose type is AVMEDIA_TYPE_VIDEO; everything else is unset. Given that we never use pointer equality for inputs or outputs*, we can simply use a single AVFilterPad instead of dozens; this even saves .data.rel.ro (8312B here) as well as relocations. *: In fact, several filters (like the filters in vf_lut.c) already use the same outputs; furthermore, ff_filter_alloc() duplicates the input and output pads so that we do not even work with the pads directly. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
36 lines
1.2 KiB
C
36 lines
1.2 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
|
|
* null video filter
|
|
*/
|
|
|
|
#include "libavutil/internal.h"
|
|
#include "avfilter.h"
|
|
#include "internal.h"
|
|
#include "video.h"
|
|
|
|
const AVFilter ff_vf_null = {
|
|
.name = "null",
|
|
.description = NULL_IF_CONFIG_SMALL("Pass the source unchanged to the output."),
|
|
.flags = AVFILTER_FLAG_METADATA_ONLY,
|
|
FILTER_INPUTS(ff_video_default_filterpad),
|
|
FILTER_OUTPUTS(ff_video_default_filterpad),
|
|
};
|