yading@10: /*
yading@10:  * Copyright (c) 2001-2003 The ffmpeg Project
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: /**
yading@10:  * @file
yading@10:  * ADPCM encoder/decoder common header.
yading@10:  */
yading@10: 
yading@10: #ifndef AVCODEC_ADPCM_H
yading@10: #define AVCODEC_ADPCM_H
yading@10: 
yading@10: #include <stdint.h>
yading@10: 
yading@10: #define BLKSIZE 1024
yading@10: 
yading@10: typedef struct ADPCMChannelStatus {
yading@10:     int predictor;
yading@10:     int16_t step_index;
yading@10:     int step;
yading@10:     /* for encoding */
yading@10:     int prev_sample;
yading@10: 
yading@10:     /* MS version */
yading@10:     int16_t sample1;
yading@10:     int16_t sample2;
yading@10:     int coeff1;
yading@10:     int coeff2;
yading@10:     int idelta;
yading@10: } ADPCMChannelStatus;
yading@10: 
yading@10: #endif /* AVCODEC_ADPCM_H */