1/* 2 * ADX ADPCM codecs 3 * Copyright (c) 2001,2003 BERO 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/** 23 * @file 24 * SEGA CRI adx codecs. 25 * 26 * Reference documents: 27 * http://ku-www.ss.titech.ac.jp/~yatsushi/adx.html 28 * adx2wav & wav2adx http://www.geocities.co.jp/Playtown/2004/ 29 */ 30 31#ifndef AVCODEC_ADX_H 32#define AVCODEC_ADX_H 33 34typedef struct { 35 int s1,s2; 36} PREV; 37 38typedef struct { 39 PREV prev[2]; 40 int header_parsed; 41 unsigned char dec_temp[18*2]; 42 int in_temp; 43} ADXContext; 44 45#define BASEVOL 0x4000 46#define SCALE1 0x7298 47#define SCALE2 0x3350 48 49#endif /* AVCODEC_ADX_H */ 50