1/* 2 * gsm 06.10 decoder data 3 * Copyright (c) 2010 Reimar D��ffinger <Reimar.Doeffinger@gmx.de> 4 * 5 * This file is part of Libav. 6 * 7 * Libav 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 * Libav 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 Libav; 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 23#define AVCODEC_GSMDEC_DATA 24 25#include <stdint.h> 26#include "avcodec.h" 27 28typedef struct { 29 AVFrame frame; 30 // Contains first 120 elements from the previous frame 31 // (used by long_term_synth according to the "lag"), 32 // then in the following 160 elements the current 33 // frame is constructed. 34 int16_t ref_buf[280]; 35 int v[9]; 36 int lar[2][8]; 37 int lar_idx; 38 int msr; 39} GSMContext; 40 41extern const uint16_t ff_gsm_long_term_gain_tab[4]; 42extern const int16_t ff_gsm_dequant_tab[64][8]; 43 44#endif /* AVCODEC_GSMDEC_DATA */ 45