Imported Debian version 2.4.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavcodec / adpcm.h
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2ba45a60
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1/*
2 * Copyright (c) 2001-2003 The FFmpeg Project
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21/**
22 * @file
23 * ADPCM encoder/decoder common header.
24 */
25
26#ifndef AVCODEC_ADPCM_H
27#define AVCODEC_ADPCM_H
28
29#include <stdint.h>
30
31#define BLKSIZE 1024
32
33typedef struct ADPCMChannelStatus {
34 int predictor;
35 int16_t step_index;
36 int step;
37 /* for encoding */
38 int prev_sample;
39
40 /* MS version */
41 int sample1;
42 int sample2;
43 int coeff1;
44 int coeff2;
45 int idelta;
46} ADPCMChannelStatus;
47
48#endif /* AVCODEC_ADPCM_H */