| /* | |
| * gsm 06.10 decoder data | |
| * Copyright (c) 2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de> | |
| * | |
| * 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_GSMDEC_DATA_H | |
| #define AVCODEC_GSMDEC_DATA_H | |
| #include <stdint.h> | |
| typedef struct GSMContext { | |
| // Contains first 120 elements from the previous frame | |
| // (used by long_term_synth according to the "lag"), | |
| // then in the following 160 elements the current | |
| // frame is constructed. | |
| int16_t ref_buf[280]; | |
| int v[9]; | |
| int lar[2][8]; | |
| int lar_idx; | |
| int msr; | |
| } GSMContext; | |
| extern const uint16_t ff_gsm_long_term_gain_tab[4]; | |
| extern const uint8_t ff_gsm_requant_tab[4][8]; | |
| extern const int16_t ff_gsm_dequant_tab[64][8]; | |
| extern const int* const ff_gsm_apcm_bits[][4]; | |
| #endif /* AVCODEC_GSMDEC_DATA_H */ |