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47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* Double input streams helper for filters
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*/
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#ifndef AVFILTER_DUALINPUT_H
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#define AVFILTER_DUALINPUT_H
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#include <stdint.h>
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#include "bufferqueue.h"
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#include "framesync.h"
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#include "internal.h"
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typedef struct {
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FFFrameSync fs;
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FFFrameSyncIn second_input; /* must be immediately after fs */
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AVFrame *(*process)(AVFilterContext *ctx, AVFrame *main, const AVFrame *second);
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int shortest; ///< terminate stream when the second input terminates
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int repeatlast; ///< repeat last second frame
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} FFDualInputContext;
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int ff_dualinput_init(AVFilterContext *ctx, FFDualInputContext *s);
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int ff_dualinput_filter_frame(FFDualInputContext *s, AVFilterLink *inlink, AVFrame *in);
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int ff_dualinput_request_frame(FFDualInputContext *s, AVFilterLink *outlink);
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void ff_dualinput_uninit(FFDualInputContext *s);
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#endif /* AVFILTER_DUALINPUT_H */
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