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- #------------------------------------------------------------------------------
- # animation: file(1) magic for animation/movie formats
- #
- # animation formats
- # MPEG, FLI, DL originally from vax@ccwf.cc.utexas.edu (VaX#n8)
- # FLC, SGI, Apple originally from Daniel Quinlan (quinlan@yggdrasil.com)
- # MPEG animation format
- 0 belong 0x000001b3 MPEG video stream data
- #>4 beshort&0xfff0 x (%d x
- #>5 beshort&0x0fff x %d)
- 0 belong 0x000001ba MPEG system stream data
- # MPEG Audio (*.mpx)
- # from dreesen@math.fu-berlin.de
- # XXX
- # This conflicts with the FF FE signature for UTF-16-encoded Unicode
- # text, which will be identified as an MP3 file. I don't have any MP3s
- # so I don't know how to (or even if it's possible to) change this to
- # tell the two apart. enf@pobox.com
- 0 beshort &0xfff0 MP
- # MPEG 1.0
- >1 byte&0x08 =0x08 \b
- # Layer 3
- >>1 byte &0x02 \b3
- >>>2 byte&0xf0 =0x10 \b, 32 kBits
- >>>2 byte&0xf0 =0x20 \b, 40 kBits
- >>>2 byte&0xf0 =0x30 \b, 48 kBits
- >>>2 byte&0xf0 =0x40 \b, 56 kBits
- >>>2 byte&0xf0 =0x50 \b, 64 kBits
- >>>2 byte&0xf0 =0x60 \b, 80 kBits
- >>>2 byte&0xf0 =0x70 \b, 96 kBits
- >>>2 byte&0xf0 =0x80 \b, 112 kBits
- >>>2 byte&0xf0 =0x90 \b, 128 kBits
- >>>2 byte&0xf0 =0xA0 \b, 160 kBits
- >>>2 byte&0xf0 =0xB0 \b, 192 kBits
- >>>2 byte&0xf0 =0xC0 \b, 224 kBits
- >>>2 byte&0xf0 =0xD0 \b, 256 kBits
- >>>2 byte&0xf0 =0xE0 \b, 320 kBits
- # Layer 2
- >>1 byte &0x04 \b2
- >>>2 byte&0xf0 =0x10 \b, 32 kBits
- >>>2 byte&0xf0 =0x20 \b, 48 kBits
- >>>2 byte&0xf0 =0x30 \b, 56 kBits
- >>>2 byte&0xf0 =0x40 \b, 64 kBits
- >>>2 byte&0xf0 =0x50 \b, 80 kBits
- >>>2 byte&0xf0 =0x60 \b, 96 kBits
- >>>2 byte&0xf0 =0x70 \b, 112 kBits
- >>>2 byte&0xf0 =0x80 \b, 128 kBits
- >>>2 byte&0xf0 =0x90 \b, 160 kBits
- >>>2 byte&0xf0 =0xA0 \b, 192 kBits
- >>>2 byte&0xf0 =0xB0 \b, 224 kBits
- >>>2 byte&0xf0 =0xC0 \b, 256 kBits
- >>>2 byte&0xf0 =0xD0 \b, 320 kBits
- >>>2 byte&0xf0 =0xE0 \b, 384 kBits
- # freq
- >>2 byte&0x0C =0x00 \b, 44.1 kHz
- >>2 byte&0x0C =0x04 \b, 48 kHz
- >>2 byte&0x0C =0x08 \b, 32 kHz
- # MPEG 2.0
- >1 byte&0x08 =0x00 \b
- # Layer 3
- >>1 byte &0x02 \b3
- # Layer 2
- >>1 byte &0x04 \b2
- >>2 byte&0xf0 =0x10 \b, 8 kBits
- >>2 byte&0xf0 =0x20 \b, 16 kBits
- >>2 byte&0xf0 =0x30 \b, 24 kBits
- >>2 byte&0xf0 =0x40 \b, 32 kBits
- >>2 byte&0xf0 =0x50 \b, 40 kBits
- >>2 byte&0xf0 =0x60 \b, 48 kBits
- >>2 byte&0xf0 =0x70 \b, 56 kBits
- >>2 byte&0xf0 =0x80 \b, 64 kBits
- >>2 byte&0xf0 =0x90 \b, 80 kBits
- >>2 byte&0xf0 =0xA0 \b, 96 kBits
- >>2 byte&0xf0 =0xB0 \b, 112 kBits
- >>2 byte&0xf0 =0xC0 \b, 128 kBits
- >>2 byte&0xf0 =0xD0 \b, 144 kBits
- >>2 byte&0xf0 =0xE0 \b, 160 kBits
- # freq
- >>2 byte&0x0C =0x00 \b, 22.05 kHz
- >>2 byte&0x0C =0x04 \b, 24 kHz
- >>2 byte&0x0C =0x08 \b, 16 kHz
- # misc
- >3 byte&0xC0 =0x00 \b, Stereo
- >3 byte&0xC0 =0x40 \b, JStereo
- >3 byte&0xC0 =0x80 \b, Dual-Ch
- >3 byte&0xC0 =0xC0 \b, Mono
- #>1 byte&0x01 =0x00 \b, Error Protection
- #>2 byte&0x02 =0x02 \b, Padding
- #>2 byte&0x01 =0x01 \b, Private
- #>3 byte&0x08 =0x08 \b, Copyright
- #>3 byte&0x04 =0x04 \b, Original
- #>3 byte&0x03 1 \b, Emphasis 5
- #>3 byte&0x03 3 \b, Emphasis c
- # FLI animation format
- 4 leshort 0xAF11 FLI file
- >6 leshort x - %d frames,
- >8 leshort x width=%d pixels,
- >10 leshort x height=%d pixels,
- >12 leshort x depth=%d,
- >16 leshort x ticks/frame=%d
- # FLC animation format
- 4 leshort 0xAF12 FLC file
- >6 leshort x - %d frames
- >8 leshort x width=%d pixels,
- >10 leshort x height=%d pixels,
- >12 leshort x depth=%d,
- >16 leshort x ticks/frame=%d
- # DL animation format
- # XXX - collision with most `mips' magic
- #
- # I couldn't find a real magic number for these, however, this
- # -appears- to work. Note that it might catch other files, too, so be
- # careful!
- #
- # Note that title and author appear in the two 20-byte chunks
- # at decimal offsets 2 and 22, respectively, but they are XOR'ed with
- # 255 (hex FF)! The DL format is really bad.
- #
- #0 byte 1 DL version 1, medium format (160x100, 4 images/screen)
- #>42 byte x - %d screens,
- #>43 byte x %d commands
- #0 byte 2 DL version 2
- #>1 byte 1 - large format (320x200,1 image/screen),
- #>1 byte 2 - medium format (160x100,4 images/screen),
- #>1 byte >2 - unknown format,
- #>42 byte x %d screens,
- #>43 byte x %d commands
- # Based on empirical evidence, DL version 3 have several nulls following the
- # \003. Most of them start with non-null values at hex offset 0x34 or so.
- #0 string \3\0\0\0\0\0\0\0\0\0\0\0 DL version 3
- # SGI and Apple formats
- 0 string MOVI Silicon Graphics movie file
- 4 string moov Apple QuickTime movie file (moov)
- 4 string mdat Apple QuickTime movie file (mdat)
- # iso 13818 transport stream
- #
- # from Oskar Schirmer <schirmer@scara.com> Feb 3, 2001 (ISO 13818.1)
- # (the following is a little bit restrictive and works fine for a stream
- # that starts with PAT properly. it won't work for stream data, that is
- # cut from an input device data right in the middle, but this shouldn't
- # disturb)
- # syncbyte 8 bit 0x47
- # error_ind 1 bit -
- # payload_start 1 bit 1
- # priority 1 bit -
- # PID 13 bit 0x0000
- # scrambling 2 bit -
- # adaptfld_ctrl 2 bit 1 or 3
- # conti_count 4 bit 0
- 0 belong&0xFF5FFF1F 0x47400010 MPEG transport stream data
- >188 byte !0x47 CORRUPTED
- # DIF digital video file format <mpruett@sgi.com>
- 0 belong&0xffffff00 0x1f070000 DIF
- >4 byte &0x01 (DVCPRO) movie file
- >4 byte ^0x01 (DV) movie file
- >3 byte &0x80 (PAL)
- >3 byte ^0x80 (NTSC)
- # Microsoft Advanced Streaming Format (ASF) <mpruett@sgi.com>
- 0 belong 0x3026b275 Microsoft ASF
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