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dca.h
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1 /*
2  * DCA compatible decoder
3  * Copyright (C) 2004 Gildas Bazin
4  * Copyright (C) 2004 Benjamin Zores
5  * Copyright (C) 2006 Benjamin Larsson
6  * Copyright (C) 2007 Konstantin Shishkov
7  *
8  * This file is part of FFmpeg.
9  *
10  * FFmpeg is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU Lesser General Public
12  * License as published by the Free Software Foundation; either
13  * version 2.1 of the License, or (at your option) any later version.
14  *
15  * FFmpeg is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18  * Lesser General Public License for more details.
19  *
20  * You should have received a copy of the GNU Lesser General Public
21  * License along with FFmpeg; if not, write to the Free Software
22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23  */
24 
25 #ifndef AVCODEC_DCA_H
26 #define AVCODEC_DCA_H
27 
28 #include <stdint.h>
29 #include "libavutil/internal.h"
30 
31 /** DCA syncwords, also used for bitstream type detection */
32 #define DCA_MARKER_RAW_BE 0x7FFE8001
33 #define DCA_MARKER_RAW_LE 0xFE7F0180
34 #define DCA_MARKER_14B_BE 0x1FFFE800
35 #define DCA_MARKER_14B_LE 0xFF1F00E8
36 
37 /** DCA-HD specific block starts with this marker. */
38 #define DCA_HD_MARKER 0x64582025
39 
40 extern av_export const uint32_t avpriv_dca_sample_rates[16];
41 
42 /**
43  * Convert bitstream to one representation based on sync marker
44  */
45 int ff_dca_convert_bitstream(const uint8_t *src, int src_size, uint8_t *dst,
46  int max_size);
47 
48 #endif /* AVCODEC_DCA_H */