FFmpeg  1.2.12
j2k_dwt.h
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1 /*
2  * Discrete wavelet transform
3  * Copyright (c) 2007 Kamil Nowosad
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 #ifndef AVCODEC_DWT_H
23 #define AVCODEC_DWT_H
24 
31 #include "avcodec.h"
32 
33 #define FF_DWT_MAX_DECLVLS 32
34 
35 enum DWTType{
38 };
39 
40 typedef struct {
42  uint16_t linelen[FF_DWT_MAX_DECLVLS][2];
46  void *linebuf;
47 } DWTContext;
48 
56 int ff_j2k_dwt_init(DWTContext *s, uint16_t border[2][2], int decomp_levels, int type);
57 
58 int ff_j2k_dwt_encode(DWTContext *s, int *t);
59 int ff_j2k_dwt_decode(DWTContext *s, int *t);
60 
62 
63 #endif /* AVCODEC_DWT_H */