1f72f8299SJan Lentfer 2f72f8299SJan Lentfer#------------------------------------------------------------------------------ 3*6fca56fbSSascha Wildner# $File: dolby,v 1.9 2019/04/19 00:42:27 christos Exp $ 4327e51cbSPeter Avalos# ATSC A/53 aka AC-3 aka Dolby Digital <ashitaka@gmx.at> 5*6fca56fbSSascha Wildner# from https://www.atsc.org/standards/a_52a.pdf 6327e51cbSPeter Avalos# corrections, additions, etc. are always welcome! 7327e51cbSPeter Avalos# 8327e51cbSPeter Avalos# syncword 9327e51cbSPeter Avalos0 beshort 0x0b77 ATSC A/52 aka AC-3 aka Dolby Digital stream, 10e8af9738SPeter Avalos# Proposed audio/ac3 RFC/4184 11e8af9738SPeter Avalos!:mime audio/vnd.dolby.dd-raw 12327e51cbSPeter Avalos# fscod 13e8af9738SPeter Avalos>4 byte&0xc0 = 0x00 48 kHz, 14e8af9738SPeter Avalos>4 byte&0xc0 = 0x40 44.1 kHz, 15e8af9738SPeter Avalos>4 byte&0xc0 = 0x80 32 kHz, 16327e51cbSPeter Avalos# is this one used for 96 kHz? 17e8af9738SPeter Avalos>4 byte&0xc0 = 0xc0 reserved frequency, 18327e51cbSPeter Avalos# 19e8af9738SPeter Avalos>5 byte&0x07 = 0x00 \b, complete main (CM) 20e8af9738SPeter Avalos>5 byte&0x07 = 0x01 \b, music and effects (ME) 21e8af9738SPeter Avalos>5 byte&0x07 = 0x02 \b, visually impaired (VI) 22e8af9738SPeter Avalos>5 byte&0x07 = 0x03 \b, hearing impaired (HI) 23e8af9738SPeter Avalos>5 byte&0x07 = 0x04 \b, dialogue (D) 24e8af9738SPeter Avalos>5 byte&0x07 = 0x05 \b, commentary (C) 25e8af9738SPeter Avalos>5 byte&0x07 = 0x06 \b, emergency (E) 26e8af9738SPeter Avalos>5 beshort&0x07e0 0x0720 \b, voiceover (VO) 27e8af9738SPeter Avalos>5 beshort&0x07e0 >0x0720 \b, karaoke 28327e51cbSPeter Avalos# acmod 29e8af9738SPeter Avalos>6 byte&0xe0 = 0x00 1+1 front, 30e8af9738SPeter Avalos>>6 byte&0x10 = 0x10 LFE on, 31e8af9738SPeter Avalos>6 byte&0xe0 = 0x20 1 front/0 rear, 32e8af9738SPeter Avalos>>6 byte&0x10 = 0x10 LFE on, 33e8af9738SPeter Avalos>6 byte&0xe0 = 0x40 2 front/0 rear, 34e8af9738SPeter Avalos# dsurmod (for stereo only) 35e8af9738SPeter Avalos>>6 byte&0x18 = 0x00 Dolby Surround not indicated 36e8af9738SPeter Avalos>>6 byte&0x18 = 0x08 not Dolby Surround encoded 37e8af9738SPeter Avalos>>6 byte&0x18 = 0x10 Dolby Surround encoded 38e8af9738SPeter Avalos>>6 byte&0x18 = 0x18 reserved Dolby Surround mode 39e8af9738SPeter Avalos>>6 byte&0x04 = 0x04 LFE on, 40e8af9738SPeter Avalos>6 byte&0xe0 = 0x60 3 front/0 rear, 41e8af9738SPeter Avalos>>6 byte&0x04 = 0x04 LFE on, 42e8af9738SPeter Avalos>6 byte&0xe0 = 0x80 2 front/1 rear, 43e8af9738SPeter Avalos>>6 byte&0x04 = 0x04 LFE on, 44e8af9738SPeter Avalos>6 byte&0xe0 = 0xa0 3 front/1 rear, 45e8af9738SPeter Avalos>>6 byte&0x01 = 0x01 LFE on, 46e8af9738SPeter Avalos>6 byte&0xe0 = 0xc0 2 front/2 rear, 47e8af9738SPeter Avalos>>6 byte&0x04 = 0x04 LFE on, 48e8af9738SPeter Avalos>6 byte&0xe0 = 0xe0 3 front/2 rear, 49e8af9738SPeter Avalos>>6 byte&0x01 = 0x01 LFE on, 50327e51cbSPeter Avalos# 51327e51cbSPeter Avalos>4 byte&0x3e = 0x00 \b, 32 kbit/s 52327e51cbSPeter Avalos>4 byte&0x3e = 0x02 \b, 40 kbit/s 53327e51cbSPeter Avalos>4 byte&0x3e = 0x04 \b, 48 kbit/s 54327e51cbSPeter Avalos>4 byte&0x3e = 0x06 \b, 56 kbit/s 55327e51cbSPeter Avalos>4 byte&0x3e = 0x08 \b, 64 kbit/s 56327e51cbSPeter Avalos>4 byte&0x3e = 0x0a \b, 80 kbit/s 57327e51cbSPeter Avalos>4 byte&0x3e = 0x0c \b, 96 kbit/s 58327e51cbSPeter Avalos>4 byte&0x3e = 0x0e \b, 112 kbit/s 59327e51cbSPeter Avalos>4 byte&0x3e = 0x10 \b, 128 kbit/s 60327e51cbSPeter Avalos>4 byte&0x3e = 0x12 \b, 160 kbit/s 61327e51cbSPeter Avalos>4 byte&0x3e = 0x14 \b, 192 kbit/s 62327e51cbSPeter Avalos>4 byte&0x3e = 0x16 \b, 224 kbit/s 63327e51cbSPeter Avalos>4 byte&0x3e = 0x18 \b, 256 kbit/s 64327e51cbSPeter Avalos>4 byte&0x3e = 0x1a \b, 320 kbit/s 65327e51cbSPeter Avalos>4 byte&0x3e = 0x1c \b, 384 kbit/s 66327e51cbSPeter Avalos>4 byte&0x3e = 0x1e \b, 448 kbit/s 67327e51cbSPeter Avalos>4 byte&0x3e = 0x20 \b, 512 kbit/s 68327e51cbSPeter Avalos>4 byte&0x3e = 0x22 \b, 576 kbit/s 69327e51cbSPeter Avalos>4 byte&0x3e = 0x24 \b, 640 kbit/s 70