repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * gsm 06.10 decoder data | |
| 3 | * Copyright (c) 2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de> | |
| 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_GSMDEC_DATA_H | |
| 23 | #define AVCODEC_GSMDEC_DATA_H | |
| 24 | ||
| 25 | #include <stdint.h> | |
| 26 | #include "avcodec.h" | |
| 27 | ||
| 28 | typedef struct GSMContext { | |
| 29 | // Contains first 120 elements from the previous frame | |
| 30 | // (used by long_term_synth according to the "lag"), | |
| 31 | // then in the following 160 elements the current | |
| 32 | // frame is constructed. | |
| 33 | int16_t ref_buf[280]; | |
| 34 | int v[9]; | |
| 35 | int lar[2][8]; | |
| 36 | int lar_idx; | |
| 37 | int msr; | |
| 38 | } GSMContext; | |
| 39 | ||
| 40 | extern const uint16_t ff_gsm_long_term_gain_tab[4]; | |
| 41 | extern const int16_t ff_gsm_dequant_tab[64][8]; | |
| 42 | ||
| 43 | extern const int* const ff_gsm_apcm_bits[][4]; | |
| 44 | ||
| 45 | #endif /* AVCODEC_GSMDEC_DATA_H */ |