#------------------------------------------------------------------------------ # 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 # MPEG 1.0 Layer 3 0 beshort&0xfffe =0xfffa \bMP3 >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 # freq >2 byte&0x0C =0x00 \b, 44.1 kHz >2 byte&0x0C =0x04 \b, 48 kHz >2 byte&0x0C =0x08 \b, 32 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 # MPEG 1.0 Layer 2 0 beshort&0xfffe =0xfffc \bMP2 >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 # 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 # MPEG 2.0 0 beshort&0xfff8 =0xfff0 MP # 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 # MNG Video Format, <URL:http://www.libpng.org/pub/mng/spec/> 0 string \x8aMNG MNG video data, >4 belong !0x0d0a1a0a CORRUPTED, >4 belong 0x0d0a1a0a