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libavformat
spdif.h
Go to the documentation of this file.
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/*
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* IEC 61937 common header
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* Copyright (c) 2009 Bartlomiej Wolowiec
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVFORMAT_SPDIF_H
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#define AVFORMAT_SPDIF_H
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#include <stdint.h>
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#include "
avformat.h
"
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#define SYNCWORD1 0xF872
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#define SYNCWORD2 0x4E1F
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#define BURST_HEADER_SIZE 0x8
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enum
IEC61937DataType
{
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IEC61937_AC3
= 0x01,
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IEC61937_MPEG1_LAYER1
= 0x04,
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IEC61937_MPEG1_LAYER23
= 0x05,
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IEC61937_MPEG2_EXT
= 0x06,
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IEC61937_MPEG2_AAC
= 0x07,
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IEC61937_MPEG2_LAYER1_LSF
= 0x08,
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IEC61937_MPEG2_LAYER2_LSF
= 0x09,
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IEC61937_MPEG2_LAYER3_LSF
= 0x0A,
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IEC61937_DTS1
= 0x0B,
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IEC61937_DTS2
= 0x0C,
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IEC61937_DTS3
= 0x0D,
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IEC61937_ATRAC
= 0x0E,
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IEC61937_ATRAC3
= 0x0F,
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IEC61937_ATRACX
= 0x10,
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IEC61937_DTSHD
= 0x11,
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IEC61937_WMAPRO
= 0x12,
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IEC61937_MPEG2_AAC_LSF_2048
= 0x13,
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IEC61937_MPEG2_AAC_LSF_4096
= 0x13 | 0x20,
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IEC61937_EAC3
= 0x15,
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IEC61937_TRUEHD
= 0x16,
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};
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static
const
uint16_t
spdif_mpeg_pkt_offset
[2][3] = {
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//LAYER1 LAYER2 LAYER3
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{ 3072, 9216, 4608 },
// MPEG2 LSF
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{ 1536, 4608, 4608 },
// MPEG1
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};
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void
ff_spdif_bswap_buf16
(uint16_t *
dst
,
const
uint16_t *src,
int
w);
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int
ff_spdif_read_packet
(
AVFormatContext
*s,
AVPacket
*
pkt
);
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int
ff_spdif_probe
(
const
uint8_t
*p_buf,
int
buf_size,
enum
AVCodecID
*codec);
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#endif
/* AVFORMAT_SPDIF_H */
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