2 * This file is part of FFmpeg.
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.
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.
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
21 * Double input streams helper for filters
24 #ifndef AVFILTER_DUALINPUT_H
25 #define AVFILTER_DUALINPUT_H
28 #include "bufferqueue.h"
29 #include "framesync.h"
34 FFFrameSyncIn second_input; /* must be immediately after fs */
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
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);
46 #endif /* AVFILTER_DUALINPUT_H */