/* * codec2 utility functions * Copyright (c) 2017 Tomas Härdin * * 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 AVCODEC_CODEC2UTILS_H#define AVCODEC_CODEC2UTILS_H #include <stdint.h> //Highest mode we're willing to use.//Don't want to let users accidentally produce files that can't be decoded in the future.//CODEC2_MODE_WB (9) is experimental/unstable as of 2017-11-23.#define CODEC2_MODE_MAX 8 //CODEC2_MODE_700C //Used by both codec2raw demuxer and libcodec2 encoder.//The integers match the values in codec2.h, so "3200" -> CODEC2_MODE_3000 = 0 and so on.//It is possible that we're linked to a version of libcodec2 that lacks some of these modes.//For example Debian stretch ships with libcodec2.so.0.4 which lacks CODEC2_MODE_700C.#define CODEC2_AVOPTIONS(desc, classname, min_val, default_val, option_flags) \    { "mode", desc, offsetof(classname, mode), AV_OPT_TYPE_INT, {.i64 = default_val}, min_val, CODEC2_MODE_MAX, .flags=option_flags, .unit="codec2_mode"},\    { "3200", "3200", 0, AV_OPT_TYPE_CONST, {.i64 = 0}, .flags=option_flags, .unit="codec2_mode"},\    { "2400", "2400", 0, AV_OPT_TYPE_CONST, {.i64 = 1}, .flags=option_flags, .unit="codec2_mode"},\    { "1600", "1600", 0, AV_OPT_TYPE_CONST, {.i64 = 2}, .flags=option_flags, .unit="codec2_mode"},\    { "1400", "1400", 0, AV_OPT_TYPE_CONST, {.i64 = 3}, .flags=option_flags, .unit="codec2_mode"},\    { "1300", "1300", 0, AV_OPT_TYPE_CONST, {.i64 = 4}, .flags=option_flags, .unit="codec2_mode"},\    { "1200", "1200", 0, AV_OPT_TYPE_CONST, {.i64 = 5}, .flags=option_flags, .unit="codec2_mode"},\    { "700",  "700",  0, AV_OPT_TYPE_CONST, {.i64 = 6}, .flags=option_flags, .unit="codec2_mode"},\    { "700B", "700B", 0, AV_OPT_TYPE_CONST, {.i64 = 7}, .flags=option_flags, .unit="codec2_mode"},\    { "700C", "700C", 0, AV_OPT_TYPE_CONST, {.i64 = 8}, .flags=option_flags, .unit="codec2_mode"} #define CODEC2_EXTRADATA_SIZE 4 //Used in codec2raw demuxer and libcodec2 encoderstatic inline void codec2_make_extradata(uint8_t *ptr, int mode) {    //version 0.8 as of 2017-12-23 (r3386)    ptr[0] = 0;     //major    ptr[1] = 8;     //minor    ptr[2] = mode;  //mode    ptr[3] = 0;     //flags} static inline uint8_t codec2_mode_from_extradata(uint8_t *ptr) {    return ptr[2];} #endif /* AVCODEC_CODEC2UTILS_H */