1*327e51cbSPeter Avalos# ATSC A/53 aka AC-3 aka Dolby Digital <ashitaka@gmx.at> 2*327e51cbSPeter Avalos# from http://www.atsc.org/standards/a_52a.pdf 3*327e51cbSPeter Avalos# corrections, additions, etc. are always welcome! 4*327e51cbSPeter Avalos# 5*327e51cbSPeter Avalos# syncword 6*327e51cbSPeter Avalos0 beshort 0x0b77 ATSC A/52 aka AC-3 aka Dolby Digital stream, 7*327e51cbSPeter Avalos# fscod 8*327e51cbSPeter Avalos>4 byte&0xc0 0x00 48 kHz, 9*327e51cbSPeter Avalos>4 byte&0xc0 0x40 44.1 kHz, 10*327e51cbSPeter Avalos>4 byte&0xc0 0x80 32 kHz, 11*327e51cbSPeter Avalos# is this one used for 96 kHz? 12*327e51cbSPeter Avalos>4 byte&0xc0 0xc0 reserved frequency, 13*327e51cbSPeter Avalos# 14*327e51cbSPeter Avalos>5 byte&7 = 0 \b, complete main (CM) 15*327e51cbSPeter Avalos>5 byte&7 = 1 \b, music and effects (ME) 16*327e51cbSPeter Avalos>5 byte&7 = 2 \b, visually impaired (VI) 17*327e51cbSPeter Avalos>5 byte&7 = 3 \b, hearing impaired (HI) 18*327e51cbSPeter Avalos>5 byte&7 = 4 \b, dialogue (D) 19*327e51cbSPeter Avalos>5 byte&7 = 5 \b, commentary (C) 20*327e51cbSPeter Avalos>5 byte&7 = 6 \b, emergency (E) 21*327e51cbSPeter Avalos# acmod 22*327e51cbSPeter Avalos>6 byte&0xe0 0x00 1+1 front, 23*327e51cbSPeter Avalos>6 byte&0xe0 0x20 1 front/0 rear, 24*327e51cbSPeter Avalos>6 byte&0xe0 0x40 2 front/0 rear, 25*327e51cbSPeter Avalos>6 byte&0xe0 0x60 3 front/0 rear, 26*327e51cbSPeter Avalos>6 byte&0xe0 0x80 2 front/1 rear, 27*327e51cbSPeter Avalos>6 byte&0xe0 0xa0 3 front/1 rear, 28*327e51cbSPeter Avalos>6 byte&0xe0 0xc0 2 front/2 rear, 29*327e51cbSPeter Avalos>6 byte&0xe0 0xe0 3 front/2 rear, 30*327e51cbSPeter Avalos# lfeon (these may be incorrect) 31*327e51cbSPeter Avalos>7 byte&0x40 0x00 LFE off, 32*327e51cbSPeter Avalos>7 byte&0x40 0x40 LFE on, 33*327e51cbSPeter Avalos# 34*327e51cbSPeter Avalos>4 byte&0x3e = 0x00 \b, 32 kbit/s 35*327e51cbSPeter Avalos>4 byte&0x3e = 0x02 \b, 40 kbit/s 36*327e51cbSPeter Avalos>4 byte&0x3e = 0x04 \b, 48 kbit/s 37*327e51cbSPeter Avalos>4 byte&0x3e = 0x06 \b, 56 kbit/s 38*327e51cbSPeter Avalos>4 byte&0x3e = 0x08 \b, 64 kbit/s 39*327e51cbSPeter Avalos>4 byte&0x3e = 0x0a \b, 80 kbit/s 40*327e51cbSPeter Avalos>4 byte&0x3e = 0x0c \b, 96 kbit/s 41*327e51cbSPeter Avalos>4 byte&0x3e = 0x0e \b, 112 kbit/s 42*327e51cbSPeter Avalos>4 byte&0x3e = 0x10 \b, 128 kbit/s 43*327e51cbSPeter Avalos>4 byte&0x3e = 0x12 \b, 160 kbit/s 44*327e51cbSPeter Avalos>4 byte&0x3e = 0x14 \b, 192 kbit/s 45*327e51cbSPeter Avalos>4 byte&0x3e = 0x16 \b, 224 kbit/s 46*327e51cbSPeter Avalos>4 byte&0x3e = 0x18 \b, 256 kbit/s 47*327e51cbSPeter Avalos>4 byte&0x3e = 0x1a \b, 320 kbit/s 48*327e51cbSPeter Avalos>4 byte&0x3e = 0x1c \b, 384 kbit/s 49*327e51cbSPeter Avalos>4 byte&0x3e = 0x1e \b, 448 kbit/s 50*327e51cbSPeter Avalos>4 byte&0x3e = 0x20 \b, 512 kbit/s 51*327e51cbSPeter Avalos>4 byte&0x3e = 0x22 \b, 576 kbit/s 52*327e51cbSPeter Avalos>4 byte&0x3e = 0x24 \b, 640 kbit/s 53*327e51cbSPeter Avalos# dsurmod (these may be incorrect) 54*327e51cbSPeter Avalos>6 beshort&0x0180 0x0000 Dolby Surround not indicated 55*327e51cbSPeter Avalos>6 beshort&0x0180 0x0080 not Dolby Surround encoded 56*327e51cbSPeter Avalos>6 beshort&0x0180 0x0100 Dolby Surround encoded 57*327e51cbSPeter Avalos>6 beshort&0x0180 0x0180 reserved Dolby Surround mode 58