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2ba45a60 DM |
1 | /* |
2 | * This file is part of FFmpeg. | |
3 | * | |
4 | * FFmpeg 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 | * FFmpeg 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 FFmpeg; 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 | .filter_frame = filter_frame, | |
50 | }, | |
51 | { NULL } | |
52 | }; | |
53 | ||
54 | static const AVFilterPad avfilter_vf_copy_outputs[] = { | |
55 | { | |
56 | .name = "default", | |
57 | .type = AVMEDIA_TYPE_VIDEO, | |
58 | }, | |
59 | { NULL } | |
60 | }; | |
61 | ||
62 | AVFilter ff_vf_copy = { | |
63 | .name = "copy", | |
64 | .description = NULL_IF_CONFIG_SMALL("Copy the input video unchanged to the output."), | |
65 | .inputs = avfilter_vf_copy_inputs, | |
66 | .outputs = avfilter_vf_copy_outputs, | |
67 | }; |