00001 /* 00002 * Copyright (c) 2001-2003 The ffmpeg Project 00003 * 00004 * This file is part of FFmpeg. 00005 * 00006 * FFmpeg is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU Lesser General Public 00008 * License as published by the Free Software Foundation; either 00009 * version 2.1 of the License, or (at your option) any later version. 00010 * 00011 * FFmpeg is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 * Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public 00017 * License along with FFmpeg; if not, write to the Free Software 00018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00019 */ 00020 00026 #ifndef AVCODEC_ADPCM_H 00027 #define AVCODEC_ADPCM_H 00028 00029 #include <stdint.h> 00030 00031 #define BLKSIZE 1024 00032 00033 typedef struct ADPCMChannelStatus { 00034 int predictor; 00035 int16_t step_index; 00036 int step; 00037 /* for encoding */ 00038 int prev_sample; 00039 00040 /* MS version */ 00041 int16_t sample1; 00042 int16_t sample2; 00043 int coeff1; 00044 int coeff2; 00045 int idelta; 00046 } ADPCMChannelStatus; 00047 00048 #endif /* AVCODEC_ADPCM_H */
1.5.8