h264_metadata: Add option to delete filler data
[libav.git] / libavfilter / vf_copy.c
1 /*
2 * This file is part of Libav.
3 *
4 * Libav is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * Libav is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with Libav; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 /**
20 * @file
21 * copy video filter
22 */
23
24 #include "libavutil/imgutils.h"
25 #include "libavutil/internal.h"
26 #include "avfilter.h"
27 #include "internal.h"
28 #include "video.h"
29
30 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
31 {
32 AVFilterLink *outlink = inlink->dst->outputs[0];
33 AVFrame *out = ff_get_video_buffer(outlink, in->width, in->height);
34
35 if (!out) {
36 av_frame_free(&in);
37 return AVERROR(ENOMEM);
38 }
39 av_frame_copy_props(out, in);
40 av_frame_copy(out, in);
41 av_frame_free(&in);
42 return ff_filter_frame(outlink, out);
43 }
44
45 static const AVFilterPad avfilter_vf_copy_inputs[] = {
46 {
47 .name = "default",
48 .type = AVMEDIA_TYPE_VIDEO,
49 .get_video_buffer = ff_null_get_video_buffer,
50 .filter_frame = filter_frame,
51 },
52 { NULL }
53 };
54
55 static const AVFilterPad avfilter_vf_copy_outputs[] = {
56 {
57 .name = "default",
58 .type = AVMEDIA_TYPE_VIDEO,
59 },
60 { NULL }
61 };
62
63 AVFilter ff_vf_copy = {
64 .name = "copy",
65 .description = NULL_IF_CONFIG_SMALL("Copy the input video unchanged to the output."),
66
67 .inputs = avfilter_vf_copy_inputs,
68 .outputs = avfilter_vf_copy_outputs,
69 };