/* * 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 #define AVCODEC_GSMDEC_DATA #include <stdint.h> // input and output sizes in byte #define GSM_BLOCK_SIZE 33 #define GSM_MS_BLOCK_SIZE 65 #define GSM_FRAME_SIZE 160 typedef struct { // 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 int16_t ff_gsm_dequant_tab[64][8]; #endif /* AVCODEC_GSMDEC_DATA */