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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef FFTOOLS_FFMPEG_UTILS_H
#define FFTOOLS_FFMPEG_UTILS_H
#include <stdint.h>
#include "libavutil/common.h"
#include "libavutil/frame.h"
#include "libavutil/rational.h"
#include "libavcodec/packet.h"
typedef struct Timestamp {
int64_t ts;
AVRational tb;
} Timestamp;
/**
* Merge two return codes - return one of the error codes if at least one of
* them was negative, 0 otherwise.
*/
static inline int err_merge(int err0, int err1)
{
// prefer "real" errors over EOF
if ((err0 >= 0 || err0 == AVERROR_EOF) && err1 < 0)
return err1;
return (err0 < 0) ? err0 : FFMIN(err1, 0);
}
/**
* Wrapper calling av_frame_side_data_clone() in a loop for all source entries.
* It does not clear dst beforehand. */
static inline int clone_side_data(AVFrameSideData ***dst, int *nb_dst,
AVFrameSideData * const *src, int nb_src,
unsigned int flags)
{
for (int i = 0; i < nb_src; i++) {
int ret = av_frame_side_data_clone(dst, nb_dst, src[i], flags);
if (ret < 0)
return ret;
}
return 0;
}
#endif // FFTOOLS_FFMPEG_UTILS_H
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