2000-11-05 08:33:55 +00:00
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#------------------------------------------------------------------------------
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# animation: file(1) magic for animation/movie formats
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#
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# animation formats
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# MPEG, FLI, DL originally from vax@ccwf.cc.utexas.edu (VaX#n8)
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# FLC, SGI, Apple originally from Daniel Quinlan (quinlan@yggdrasil.com)
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# MPEG animation format
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0 belong 0x000001b3 MPEG video stream data
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#>4 beshort&0xfff0 x (%d x
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#>5 beshort&0x0fff x %d)
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0 belong 0x000001ba MPEG system stream data
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# MPEG Audio (*.mpx)
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# from dreesen@math.fu-berlin.de
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2002-09-16 05:54:26 +00:00
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# MPEG 1.0 Layer 3
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0 beshort&0xfffe =0xfffa \bMP3
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>2 byte&0xf0 =0x10 \b, 32 kBits
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>2 byte&0xf0 =0x20 \b, 40 kBits
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>2 byte&0xf0 =0x30 \b, 48 kBits
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>2 byte&0xf0 =0x40 \b, 56 kBits
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>2 byte&0xf0 =0x50 \b, 64 kBits
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>2 byte&0xf0 =0x60 \b, 80 kBits
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>2 byte&0xf0 =0x70 \b, 96 kBits
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>2 byte&0xf0 =0x80 \b, 112 kBits
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>2 byte&0xf0 =0x90 \b, 128 kBits
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>2 byte&0xf0 =0xA0 \b, 160 kBits
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>2 byte&0xf0 =0xB0 \b, 192 kBits
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>2 byte&0xf0 =0xC0 \b, 224 kBits
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>2 byte&0xf0 =0xD0 \b, 256 kBits
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>2 byte&0xf0 =0xE0 \b, 320 kBits
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# freq
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>2 byte&0x0C =0x00 \b, 44.1 kHz
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>2 byte&0x0C =0x04 \b, 48 kHz
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>2 byte&0x0C =0x08 \b, 32 kHz
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# misc
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>3 byte&0xC0 =0x00 \b, Stereo
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>3 byte&0xC0 =0x40 \b, JStereo
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>3 byte&0xC0 =0x80 \b, Dual-Ch
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>3 byte&0xC0 =0xC0 \b, Mono
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#>1 byte&0x01 =0x00 \b, Error Protection
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#>2 byte&0x02 =0x02 \b, Padding
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#>2 byte&0x01 =0x01 \b, Private
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#>3 byte&0x08 =0x08 \b, Copyright
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#>3 byte&0x04 =0x04 \b, Original
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#>3 byte&0x03 1 \b, Emphasis 5
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#>3 byte&0x03 3 \b, Emphasis c
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2000-11-05 08:33:55 +00:00
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2002-09-16 05:54:26 +00:00
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# MPEG 1.0 Layer 2
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0 beshort&0xfffe =0xfffc \bMP2
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>2 byte&0xf0 =0x10 \b, 32 kBits
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>2 byte&0xf0 =0x20 \b, 48 kBits
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>2 byte&0xf0 =0x30 \b, 56 kBits
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>2 byte&0xf0 =0x40 \b, 64 kBits
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>2 byte&0xf0 =0x50 \b, 80 kBits
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>2 byte&0xf0 =0x60 \b, 96 kBits
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>2 byte&0xf0 =0x70 \b, 112 kBits
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>2 byte&0xf0 =0x80 \b, 128 kBits
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>2 byte&0xf0 =0x90 \b, 160 kBits
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>2 byte&0xf0 =0xA0 \b, 192 kBits
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>2 byte&0xf0 =0xB0 \b, 224 kBits
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>2 byte&0xf0 =0xC0 \b, 256 kBits
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>2 byte&0xf0 =0xD0 \b, 320 kBits
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>2 byte&0xf0 =0xE0 \b, 384 kBits
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2000-11-05 08:33:55 +00:00
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# freq
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2002-09-16 05:54:26 +00:00
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>2 byte&0x0C =0x00 \b, 44.1 kHz
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>2 byte&0x0C =0x04 \b, 48 kHz
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>2 byte&0x0C =0x08 \b, 32 kHz
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# misc
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>3 byte&0xC0 =0x00 \b, Stereo
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>3 byte&0xC0 =0x40 \b, JStereo
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>3 byte&0xC0 =0x80 \b, Dual-Ch
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>3 byte&0xC0 =0xC0 \b, Mono
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#>1 byte&0x01 =0x00 \b, Error Protection
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#>2 byte&0x02 =0x02 \b, Padding
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#>2 byte&0x01 =0x01 \b, Private
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#>3 byte&0x08 =0x08 \b, Copyright
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#>3 byte&0x04 =0x04 \b, Original
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#>3 byte&0x03 1 \b, Emphasis 5
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#>3 byte&0x03 3 \b, Emphasis c
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2000-11-05 08:33:55 +00:00
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# MPEG 2.0
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2002-09-16 05:54:26 +00:00
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0 beshort&0xfff8 =0xfff0 MP
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2000-11-05 08:33:55 +00:00
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# Layer 3
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2002-09-16 05:54:26 +00:00
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>1 byte &0x02 \b3
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2000-11-05 08:33:55 +00:00
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# Layer 2
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2002-09-16 05:54:26 +00:00
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>1 byte &0x04 \b2
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>2 byte&0xf0 =0x10 \b, 8 kBits
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>2 byte&0xf0 =0x20 \b, 16 kBits
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>2 byte&0xf0 =0x30 \b, 24 kBits
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>2 byte&0xf0 =0x40 \b, 32 kBits
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>2 byte&0xf0 =0x50 \b, 40 kBits
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>2 byte&0xf0 =0x60 \b, 48 kBits
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>2 byte&0xf0 =0x70 \b, 56 kBits
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>2 byte&0xf0 =0x80 \b, 64 kBits
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>2 byte&0xf0 =0x90 \b, 80 kBits
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>2 byte&0xf0 =0xA0 \b, 96 kBits
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>2 byte&0xf0 =0xB0 \b, 112 kBits
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>2 byte&0xf0 =0xC0 \b, 128 kBits
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>2 byte&0xf0 =0xD0 \b, 144 kBits
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>2 byte&0xf0 =0xE0 \b, 160 kBits
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2000-11-05 08:33:55 +00:00
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# freq
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2002-09-16 05:54:26 +00:00
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>2 byte&0x0C =0x00 \b, 22.05 kHz
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>2 byte&0x0C =0x04 \b, 24 kHz
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>2 byte&0x0C =0x08 \b, 16 kHz
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2000-11-05 08:33:55 +00:00
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# misc
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>3 byte&0xC0 =0x00 \b, Stereo
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>3 byte&0xC0 =0x40 \b, JStereo
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>3 byte&0xC0 =0x80 \b, Dual-Ch
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>3 byte&0xC0 =0xC0 \b, Mono
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#>1 byte&0x01 =0x00 \b, Error Protection
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#>2 byte&0x02 =0x02 \b, Padding
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#>2 byte&0x01 =0x01 \b, Private
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#>3 byte&0x08 =0x08 \b, Copyright
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#>3 byte&0x04 =0x04 \b, Original
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#>3 byte&0x03 1 \b, Emphasis 5
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#>3 byte&0x03 3 \b, Emphasis c
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# FLI animation format
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4 leshort 0xAF11 FLI file
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>6 leshort x - %d frames,
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>8 leshort x width=%d pixels,
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>10 leshort x height=%d pixels,
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>12 leshort x depth=%d,
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>16 leshort x ticks/frame=%d
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# FLC animation format
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4 leshort 0xAF12 FLC file
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>6 leshort x - %d frames
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>8 leshort x width=%d pixels,
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>10 leshort x height=%d pixels,
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>12 leshort x depth=%d,
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>16 leshort x ticks/frame=%d
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# DL animation format
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# XXX - collision with most `mips' magic
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#
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# I couldn't find a real magic number for these, however, this
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# -appears- to work. Note that it might catch other files, too, so be
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# careful!
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#
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# Note that title and author appear in the two 20-byte chunks
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# at decimal offsets 2 and 22, respectively, but they are XOR'ed with
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# 255 (hex FF)! The DL format is really bad.
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#
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#0 byte 1 DL version 1, medium format (160x100, 4 images/screen)
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#>42 byte x - %d screens,
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#>43 byte x %d commands
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#0 byte 2 DL version 2
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#>1 byte 1 - large format (320x200,1 image/screen),
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#>1 byte 2 - medium format (160x100,4 images/screen),
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#>1 byte >2 - unknown format,
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#>42 byte x %d screens,
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#>43 byte x %d commands
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# Based on empirical evidence, DL version 3 have several nulls following the
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# \003. Most of them start with non-null values at hex offset 0x34 or so.
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#0 string \3\0\0\0\0\0\0\0\0\0\0\0 DL version 3
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# SGI and Apple formats
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0 string MOVI Silicon Graphics movie file
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4 string moov Apple QuickTime movie file (moov)
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4 string mdat Apple QuickTime movie file (mdat)
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2001-03-25 18:37:04 +00:00
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# iso 13818 transport stream
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#
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# from Oskar Schirmer <schirmer@scara.com> Feb 3, 2001 (ISO 13818.1)
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# (the following is a little bit restrictive and works fine for a stream
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# that starts with PAT properly. it won't work for stream data, that is
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# cut from an input device data right in the middle, but this shouldn't
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# disturb)
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# syncbyte 8 bit 0x47
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# error_ind 1 bit -
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# payload_start 1 bit 1
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# priority 1 bit -
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# PID 13 bit 0x0000
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# scrambling 2 bit -
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# adaptfld_ctrl 2 bit 1 or 3
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# conti_count 4 bit 0
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0 belong&0xFF5FFF1F 0x47400010 MPEG transport stream data
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>188 byte !0x47 CORRUPTED
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2001-07-30 03:09:46 +00:00
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# DIF digital video file format <mpruett@sgi.com>
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0 belong&0xffffff00 0x1f070000 DIF
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>4 byte &0x01 (DVCPRO) movie file
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>4 byte ^0x01 (DV) movie file
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>3 byte &0x80 (PAL)
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>3 byte ^0x80 (NTSC)
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# Microsoft Advanced Streaming Format (ASF) <mpruett@sgi.com>
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0 belong 0x3026b275 Microsoft ASF
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2002-09-16 05:54:26 +00:00
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# MNG Video Format, <URL:http://www.libpng.org/pub/mng/spec/>
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0 string \x8aMNG MNG video data,
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>4 belong !0x0d0a1a0a CORRUPTED,
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>4 belong 0x0d0a1a0a
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