Libav 0.7.1
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00001 /* 00002 * IEC 61937 common header 00003 * Copyright (c) 2009 Bartlomiej Wolowiec 00004 * 00005 * This file is part of Libav. 00006 * 00007 * Libav is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * Libav is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with Libav; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 00022 #ifndef AVFORMAT_SPDIF_H 00023 #define AVFORMAT_SPDIF_H 00024 00025 #include <stdint.h> 00026 00027 #define SYNCWORD1 0xF872 00028 #define SYNCWORD2 0x4E1F 00029 #define BURST_HEADER_SIZE 0x8 00030 00031 enum IEC61937DataType { 00032 IEC61937_AC3 = 0x01, 00033 IEC61937_MPEG1_LAYER1 = 0x04, 00034 IEC61937_MPEG1_LAYER23 = 0x05, 00035 IEC61937_MPEG2_EXT = 0x06, 00036 IEC61937_MPEG2_AAC = 0x07, 00037 IEC61937_MPEG2_LAYER1_LSF = 0x08, 00038 IEC61937_MPEG2_LAYER2_LSF = 0x09, 00039 IEC61937_MPEG2_LAYER3_LSF = 0x0A, 00040 IEC61937_DTS1 = 0x0B, 00041 IEC61937_DTS2 = 0x0C, 00042 IEC61937_DTS3 = 0x0D, 00043 IEC61937_ATRAC = 0x0E, 00044 IEC61937_ATRAC3 = 0x0F, 00045 IEC61937_ATRACX = 0x10, 00046 IEC61937_DTSHD = 0x11, 00047 IEC61937_WMAPRO = 0x12, 00048 IEC61937_MPEG2_AAC_LSF_2048 = 0x13, 00049 IEC61937_MPEG2_AAC_LSF_4096 = 0x13 | 0x20, 00050 IEC61937_EAC3 = 0x15, 00051 IEC61937_TRUEHD = 0x16, 00052 }; 00053 00054 static const uint16_t spdif_mpeg_pkt_offset[2][3] = { 00055 //LAYER1 LAYER2 LAYER3 00056 { 3072, 9216, 4608 }, // MPEG2 LSF 00057 { 1536, 4608, 4608 }, // MPEG1 00058 }; 00059 00060 void ff_spdif_bswap_buf16(uint16_t *dst, const uint16_t *src, int w); 00061 00062 #endif /* AVFORMAT_SPDIF_H */