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