spdif.h
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1 /*
2  * IEC 61937 common header
3  * Copyright (c) 2009 Bartlomiej Wolowiec
4  *
5  * This file is part of Libav.
6  *
7  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVFORMAT_SPDIF_H
23 #define AVFORMAT_SPDIF_H
24 
25 #include <stdint.h>
26 
27 #define SYNCWORD1 0xF872
28 #define SYNCWORD2 0x4E1F
29 #define BURST_HEADER_SIZE 0x8
30 
32  IEC61937_AC3 = 0x01,
40  IEC61937_DTS1 = 0x0B,
41  IEC61937_DTS2 = 0x0C,
42  IEC61937_DTS3 = 0x0D,
43  IEC61937_ATRAC = 0x0E,
44  IEC61937_ATRAC3 = 0x0F,
45  IEC61937_ATRACX = 0x10,
46  IEC61937_DTSHD = 0x11,
47  IEC61937_WMAPRO = 0x12,
50  IEC61937_EAC3 = 0x15,
51  IEC61937_TRUEHD = 0x16,
52 };
53 
54 static const uint16_t spdif_mpeg_pkt_offset[2][3] = {
55  //LAYER1 LAYER2 LAYER3
56  { 3072, 9216, 4608 }, // MPEG2 LSF
57  { 1536, 4608, 4608 }, // MPEG1
58 };
59 
60 void ff_spdif_bswap_buf16(uint16_t *dst, const uint16_t *src, int w);
61 
62 #endif /* AVFORMAT_SPDIF_H */