mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-18 05:24:42 +00:00
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/*
|
|
* ADX ADPCM codecs
|
|
* Copyright (c) 2001,2003 BERO
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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.
|
|
*
|
|
* Libav 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 Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* SEGA CRI adx codecs.
|
|
*
|
|
* Reference documents:
|
|
* http://ku-www.ss.titech.ac.jp/~yatsushi/adx.html
|
|
* adx2wav & wav2adx http://www.geocities.co.jp/Playtown/2004/
|
|
*/
|
|
|
|
#ifndef AVCODEC_ADX_H
|
|
#define AVCODEC_ADX_H
|
|
|
|
typedef struct {
|
|
int s1,s2;
|
|
} ADXChannelState;
|
|
|
|
typedef struct {
|
|
int channels;
|
|
ADXChannelState prev[2];
|
|
int header_parsed;
|
|
unsigned char dec_temp[18*2];
|
|
int in_temp;
|
|
} ADXContext;
|
|
|
|
#define COEFF_BITS 12
|
|
#define COEFF1 0x1CA6
|
|
#define COEFF2 0x0CD4
|
|
|
|
#endif /* AVCODEC_ADX_H */
|