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1 | /* |
2 | * | |
3 | * This file is part of FFmpeg. | |
4 | * | |
5 | * FFmpeg is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU Lesser General Public | |
7 | * License as published by the Free Software Foundation; either | |
8 | * version 2.1 of the License, or (at your option) any later version. | |
9 | * | |
10 | * FFmpeg is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
16 | * License along with FFmpeg; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
18 | */ | |
19 | ||
20 | #ifndef AVUTIL_REPLAYGAIN_H | |
21 | #define AVUTIL_REPLAYGAIN_H | |
22 | ||
23 | #include <stdint.h> | |
24 | ||
25 | /** | |
26 | * ReplayGain information (see | |
27 | * http://wiki.hydrogenaudio.org/index.php?title=ReplayGain_1.0_specification). | |
28 | * The size of this struct is a part of the public ABI. | |
29 | */ | |
30 | typedef struct AVReplayGain { | |
31 | /** | |
32 | * Track replay gain in microbels (divide by 100000 to get the value in dB). | |
33 | * Should be set to INT32_MIN when unknown. | |
34 | */ | |
35 | int32_t track_gain; | |
36 | /** | |
37 | * Peak track amplitude, with 100000 representing full scale (but values | |
38 | * may overflow). 0 when unknown. | |
39 | */ | |
40 | uint32_t track_peak; | |
41 | /** | |
42 | * Same as track_gain, but for the whole album. | |
43 | */ | |
44 | int32_t album_gain; | |
45 | /** | |
46 | * Same as track_peak, but for the whole album, | |
47 | */ | |
48 | uint32_t album_peak; | |
49 | } AVReplayGain; | |
50 | ||
51 | #endif /* AVUTIL_REPLAYGAIN_H */ |