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 #ifndef FFTOOLS_FFMPEG_UTILS_H
20 #define FFTOOLS_FFMPEG_UTILS_H
21
22 #include <stdint.h>
23
27
29
34
35 /**
36 * Merge two return codes - return one of the error codes if at least one of
37 * them was negative, 0 otherwise.
38 */
40 {
41 // prefer "real" errors over EOF
43 return err1;
44 return (err0 < 0) ? err0 :
FFMIN(err1, 0);
45 }
46
48 {
50 }
51
53 {
55 }
56
57 #endif // FFTOOLS_FFMPEG_UTILS_H