FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/codec2utils.h
Date: 2021-09-24 20:55:06
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1 /*
2 * codec2 utility functions
3 * Copyright (c) 2017 Tomas Härdin
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #ifndef AVCODEC_CODEC2UTILS_H
23 #define AVCODEC_CODEC2UTILS_H
24
25 #include <stdint.h>
26
27 //Highest mode we're willing to use.
28 //Don't want to let users accidentally produce files that can't be decoded in the future.
29 //CODEC2_MODE_WB (9) is experimental/unstable as of 2017-11-23.
30 #define CODEC2_MODE_MAX 8 //CODEC2_MODE_700C
31
32 //Used by both codec2raw demuxer and libcodec2 encoder.
33 //The integers match the values in codec2.h, so "3200" -> CODEC2_MODE_3000 = 0 and so on.
34 //It is possible that we're linked to a version of libcodec2 that lacks some of these modes.
35 //For example Debian stretch ships with libcodec2.so.0.4 which lacks CODEC2_MODE_700C.
36 #define CODEC2_AVOPTIONS(desc, classname, min_val, default_val, option_flags) \
37 { "mode", desc, offsetof(classname, mode), AV_OPT_TYPE_INT, {.i64 = default_val}, min_val, CODEC2_MODE_MAX, .flags=option_flags, .unit="codec2_mode"},\
38 { "3200", "3200", 0, AV_OPT_TYPE_CONST, {.i64 = 0}, .flags=option_flags, .unit="codec2_mode"},\
39 { "2400", "2400", 0, AV_OPT_TYPE_CONST, {.i64 = 1}, .flags=option_flags, .unit="codec2_mode"},\
40 { "1600", "1600", 0, AV_OPT_TYPE_CONST, {.i64 = 2}, .flags=option_flags, .unit="codec2_mode"},\
41 { "1400", "1400", 0, AV_OPT_TYPE_CONST, {.i64 = 3}, .flags=option_flags, .unit="codec2_mode"},\
42 { "1300", "1300", 0, AV_OPT_TYPE_CONST, {.i64 = 4}, .flags=option_flags, .unit="codec2_mode"},\
43 { "1200", "1200", 0, AV_OPT_TYPE_CONST, {.i64 = 5}, .flags=option_flags, .unit="codec2_mode"},\
44 { "700", "700", 0, AV_OPT_TYPE_CONST, {.i64 = 6}, .flags=option_flags, .unit="codec2_mode"},\
45 { "700B", "700B", 0, AV_OPT_TYPE_CONST, {.i64 = 7}, .flags=option_flags, .unit="codec2_mode"},\
46 { "700C", "700C", 0, AV_OPT_TYPE_CONST, {.i64 = 8}, .flags=option_flags, .unit="codec2_mode"}
47
48 #define CODEC2_EXTRADATA_SIZE 4
49
50 //Used in codec2raw demuxer and libcodec2 encoder
51 static inline void codec2_make_extradata(uint8_t *ptr, int mode) {
52 //version 0.8 as of 2017-12-23 (r3386)
53 ptr[0] = 0; //major
54 ptr[1] = 8; //minor
55 ptr[2] = mode; //mode
56 ptr[3] = 0; //flags
57 }
58
59 static inline uint8_t codec2_mode_from_extradata(uint8_t *ptr) {
60 return ptr[2];
61 }
62
63 #endif /* AVCODEC_CODEC2UTILS_H */
64