59 lines
2.0 KiB
Plaintext
59 lines
2.0 KiB
Plaintext
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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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#0 beshort&0xfff0 0xfff0 MPEG audio stream data
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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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