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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 | * Double input streams helper for filters | |
22 | */ | |
23 | ||
24 | #ifndef AVFILTER_DUALINPUT_H | |
25 | #define AVFILTER_DUALINPUT_H | |
26 | ||
27 | #include <stdint.h> | |
28 | #include "bufferqueue.h" | |
29 | #include "framesync.h" | |
30 | #include "internal.h" | |
31 | ||
32 | typedef struct { | |
33 | FFFrameSync fs; | |
34 | FFFrameSyncIn second_input; /* must be immediately after fs */ | |
35 | ||
36 | AVFrame *(*process)(AVFilterContext *ctx, AVFrame *main, const AVFrame *second); | |
37 | int shortest; ///< terminate stream when the second input terminates | |
38 | int repeatlast; ///< repeat last second frame | |
39 | } FFDualInputContext; | |
40 | ||
41 | int ff_dualinput_init(AVFilterContext *ctx, FFDualInputContext *s); | |
42 | int ff_dualinput_filter_frame(FFDualInputContext *s, AVFilterLink *inlink, AVFrame *in); | |
43 | int ff_dualinput_request_frame(FFDualInputContext *s, AVFilterLink *outlink); | |
44 | void ff_dualinput_uninit(FFDualInputContext *s); | |
45 | ||
46 | #endif /* AVFILTER_DUALINPUT_H */ |