
#------------------------------------------------------------------------------
# $File: riff,v 1.51 2025/05/28 19:39:34 christos Exp $
# riff:  file(1) magic for RIFF format
# See
#
#	https://www.seanet.com/users/matts/riffmci/riffmci.htm
#	http://www-mmsp.ece.mcgill.ca/Documents/AudioFormats/WAVE/Docs/riffmci.pdf
#	https://www.iana.org/assignments/wave-avi-codec-registry/wave-avi-codec-registry.xml
#

# audio format tag. Assume limits: max 1024 bit, 128 channels, 1 MHz
0   name    riff-wave
>0	leshort		0x01		\b, Microsoft PCM
>>14	leshort		>0
>>>14	leshort		<1024	\b, %d bit
>0	leshort		0x02		\b, Microsoft ADPCM
>0	leshort		0x03		\b, IEEE Float
>0	leshort		0x04		\b, Compaq VSELP
>0	leshort		0x05		\b, IBM CVSD
>0	leshort		0x06		\b, ITU G.711 A-law
>0	leshort		0x07		\b, ITU G.711 mu-law
>0	leshort		0x08		\b, Microsoft DTS
>0	leshort		0x10		\b, OKI ADPCM
>0	leshort		0x11		\b, IMA ADPCM
>0	leshort		0x12		\b, MediaSpace ADPCM
>0	leshort		0x13		\b, Sierra ADPCM
>0	leshort		0x14		\b, ITU G.723 ADPCM (Yamaha)
>0	leshort		0x15		\b, DSP Solutions DIGISTD
>0	leshort		0x16		\b, DSP Solutions DIGIFIX
>0	leshort		0x17		\b, Dialogic OKI ADPCM
>0	leshort		0x18		\b, MediaVision ADPCM
>0	leshort		0x19		\b, HP CU
>0	leshort		0x20		\b, Yamaha ADPCM
>0	leshort		0x21		\b, Speech Compression SONARC
>0	leshort		0x22		\b, DSP Group True Speech
>0	leshort		0x23		\b, Echo Speech EchoSC1
>0	leshort		0x24		\b, AudioFile AF36
>0	leshort		0x25		\b, APTX
>0	leshort		0x26		\b, AudioFile AF10
>0	leshort		0x27		\b, Prosody 1612
>0	leshort		0x28		\b, LRC
>0	leshort		0x30		\b, Dolby AC2
>0	leshort		0x31		\b, GSM 6.10
>0	leshort		0x32		\b, MSN Audio
>0	leshort		0x33		\b, Antex ADPCME
>0	leshort		0x34		\b, Control Res VQLPC
>0	leshort		0x35		\b, Digireal
>0	leshort		0x36		\b, DigiADPCM
>0	leshort		0x37		\b, Control Res CR10
>0	leshort		0x38		\b, NMS VBXADPCM
>0	leshort		0x39		\b, Roland RDAC
>0	leshort		0x3A		\b, Echo Speech EchoSC3
>0	leshort		0x3B		\b, Rockwell ADPCM
>0	leshort		0x3C		\b, Rockwell Digitalk
>0	leshort		0x3D		\b, Xebec
>0	leshort		0x40		\b, ITU G.721 ADPCM
>0	leshort		0x41		\b, ITU G.728 CELP
>0	leshort		0x42		\b, MSG723
>0	leshort		0x50		\b, MPEG
>0	leshort		0x52		\b, RT24
>0	leshort		0x53		\b, PAC
>0	leshort		0x55		\b, MPEG Layer 3
>0	leshort		0x59		\b, Lucent G.723
>0	leshort		0x60		\b, Cirrus
>0	leshort		0x61		\b, ESPCM
>0	leshort		0x62		\b, Voxware
>0	leshort		0x63		\b, Canopus Atrac
>0	leshort		0x64		\b, ITU G.726 ADPCM
>0	leshort		0x65		\b, ITU G.722 ADPCM
>0	leshort		0x66		\b, DSAT
>0	leshort		0x67		\b, DSAT Display
>0	leshort		0x69		\b, Voxware Byte Aligned
>0	leshort		0x70		\b, Voxware AC8
>0	leshort		0x71		\b, Voxware AC10
>0	leshort		0x72		\b, Voxware AC16
>0	leshort		0x73		\b, Voxware AC20
>0	leshort		0x74		\b, Voxware MetaVoice
>0	leshort		0x75		\b, Voxware MetaSound
>0	leshort		0x76		\b, Voxware RT29HW
>0	leshort		0x77		\b, Voxware VR12
>0	leshort		0x78		\b, Voxware VR18
>0	leshort		0x79		\b, Voxware TQ40
>0	leshort		0x80		\b, Softsound
>0	leshort		0x81		\b, Voxware TQ60
>0	leshort		0x82		\b, MSRT24
>0	leshort		0x83		\b, ITU G.729A
>0	leshort		0x84		\b, MVI MV12
>0	leshort		0x85		\b, DF G.726
>0	leshort		0x86		\b, DF GSM610
>0	leshort		0x88		\b, ISIAudio
>0	leshort		0x89		\b, Onlive
>0	leshort		0x91		\b, SBC24
>0	leshort		0x92		\b, Dolby AC3 S/PDIF
>0	leshort		0x97		\b, ZyXEL ADPCM
>0	leshort		0x98		\b, Philips LPCBB
>0	leshort		0x99		\b, Packed
>0	leshort		0x100		\b, Rhetorex ADPCM
>0	leshort		0x101		\b, BeCubed Software IRAT
>0	leshort		0x111		\b, Vivo G.723
>0	leshort		0x112		\b, Vivo Siren
>0	leshort		0x123		\b, Digital G.723
>0	leshort		0x200		\b, Creative ADPCM
>0	leshort		0x202		\b, Creative FastSpeech8
>0	leshort		0x203		\b, Creative FastSpeech10
>0	leshort		0x220		\b, Quarterdeck
>0	leshort		0x300		\b, FM Towns Snd
>0	leshort		0x400		\b, BTV Digital
>0	leshort		0x680		\b, VME VMPCM
>0	leshort		0x1000		\b, OLIGSM
>0	leshort		0x1001		\b, OLIADPCM
>0	leshort		0x1002		\b, OLICELP
>0	leshort		0x1003		\b, OLISBC
>0	leshort		0x1004		\b, OLIOPR
>0	leshort		0x1100		\b, LH Codec
>0	leshort		0x1400		\b, Norris
>0	leshort		0x1401		\b, ISIAudio
>0	leshort		0x1500		\b, Soundspace Music Compression
>0	leshort		0x2000		\b, AC3 DVM
>0	leshort		0x2001		\b, DTS
>2	leshort		=1		\b, mono
>2	leshort		=2		\b, stereo
>2	leshort		>2
>>2	leshort		<128	\b, %d channels
>4	lelong		>0
>>4	lelong		<1000000	%d Hz

# try to find "fmt "
0   name    riff-walk
>0  string  fmt\x20
>>4 lelong  >15
>>>8 use    riff-wave
>0  string  LIST
>>&(4.l+4)  use riff-walk
>0  string  DISP
>>&(4.l+4)  use riff-walk
>0  string  bext
>>&(4.l+4)  use riff-walk
>0  string  Fake
>>&(4.l+4)  use riff-walk
>0  string  fact
>>&(4.l+4)  use riff-walk
# https://developers.google.com/speed/webp/docs/riff_container
>0  string  VP8\x20
>>11		byte		0x9d
>>>12		byte		0x01
>>>>13		byte		0x2a	\b, VP8 encoding
>>>>>14		leshort&0x3fff	x	\b, %d
>>>>>16		leshort&0x3fff	x	\bx%d, Scaling:
>>>>>14		leshort&0xc000	0x0000	\b [none]
>>>>>14		leshort&0xc000	0x4000	\b [5/4]
>>>>>14		leshort&0xc000	0x8000	\b [5/3]
>>>>>14		leshort&0xc000	0xc000	\b [2]
>>>>>16		leshort&0xc000	0x0000	\bx[none]
>>>>>16		leshort&0xc000	0x4000	\bx[5/4]
>>>>>16		leshort&0xc000	0x8000	\bx[5/3]
>>>>>16		leshort&0xc000	0xc000	\bx[2]
>>>>>15		byte&0x80	=0x00	\b, YUV color
>>>>>15		byte&0x80	=0x80	\b, bad color specification
>>>>>15		byte&0x40	=0x40	\b, no clamping required
>>>>>15		byte&0x40	=0x00	\b, decoders should clamp
>0  string  VP8L
>>8		byte		0x2f	\b, lossless
>>>11		byte		&0x01	\b, with alpha
>0  string  VP8X
>>4		lelong		0x0a
>>>8		byte		&0x02	\b, animated
>>>8		byte		&0x04	\b, XMP metadata
>>>8		byte		&0x08	\b, EXIF metadata
>>>8		byte		&0x10	\b, with alpha
>>>8		byte		&0x20	\b, ICC profile
# TODO: These two values are off-by-one, for a 64x64 WebP they contain
# 63x63 as there can be no 0x0 file.
# we only handle < 65536 so we don't have do print %d+1:
#>>>12		ulelong&0xffffff	x	\b, %d+1
#>>>15		ulelong&0xffffff	x	\bx%d+1
>>>12		ulelong&0xffffff <65536
>>>>15		ulelong&0xffffff <65536
>>>>>12		uleshort+1 x		\b, %u
>>>>>15		uleshort+1 x		\bx%u 
#>0  string  x		we got %s
#>>&(4.l+4)  use riff-walk

# RecorderGear TR500 call recorder digits (BCD)
0	name	tr500-call-recorder-digits
>0	byte&0xF0	0x00	\b0
>0	byte&0xF0	0x10	\b1
>0	byte&0xF0	0x20	\b2
>0	byte&0xF0	0x30	\b3
>0	byte&0xF0	0x40	\b4
>0	byte&0xF0	0x50	\b5
>0	byte&0xF0	0x60	\b6
>0	byte&0xF0	0x70	\b7
>0	byte&0xF0	0x80	\b8
>0	byte&0xF0	0x90	\b9
>0	byte&0xF0	0xb0	\b*
>0	byte&0xF0	0xc0	\b#
>0	byte&0x0F	0	\b0
>0	byte&0x0F	1	\b1
>0	byte&0x0F	2	\b2
>0	byte&0x0F	3	\b3
>0	byte&0x0F	4	\b4
>0	byte&0x0F	5	\b5
>0	byte&0x0F	6	\b6
>0	byte&0x0F	7	\b7
>0	byte&0x0F	8	\b8
>0	byte&0x0F	9	\b9
>0	byte&0x0F	0xb	\b*
>0	byte&0x0F	0xc	\b#

# TR500 call recorder extended header
# From: David Korth <gerbilsoft@gerbilsoft.com>
# Contains dialed/incoming phone number and timestamp.
# TODO: Verify byte 15.
0	name	tr500-call-recorder-header
>15	byte	2	(outgoing call: 
>15	byte	4	(incoming call: 
>1	byte	0xFF	\bno number
>1	byte	!0xFF
>>1	use	tr500-call-recorder-digits
>>2	byte	!0xFF
>>>2	use	tr500-call-recorder-digits
>>3	byte	!0xFF
>>>3	use	tr500-call-recorder-digits
>>4	byte	!0xFF
>>>4	use	tr500-call-recorder-digits
>>5	byte	!0xFF
>>>5	use	tr500-call-recorder-digits
>>6	byte	!0xFF
>>>6	use	tr500-call-recorder-digits
>>7	byte	!0xFF
>>>7	use	tr500-call-recorder-digits
>>8	byte	!0xFF
>>>8	use	tr500-call-recorder-digits
>9	byte	x	\b, 20%02x
>10	byte	x	\b/%02x
>11	byte	x	\b/%02x
>12	byte	x	%02x
>13	byte	x	\b:%02x
>14	byte	x	\b:%02x)

# AVI section extended by Patrik Radman <patrik+file-magic@iki.fi>
#
0	string		RIFF		RIFF (little-endian) data
# RIFF Palette format
# Update: Joerg Jenderek
# URL: https://en.wikipedia.org/wiki/Resource_Interchange_File_Format
# Reference: https://worms2d.info/Palette_file
# WAVE/AVI codec registry: https://www.iana.org/assignments/wave-avi-codec-registry/wave-avi-codec-registry.xml
>8	string		PAL\ 		\b, palette
!:mime	application/x-riff
# color palette by Microsoft Corporation
!:ext	pal
# file size =  chunk size + 8 in most cases
>>4	ulelong+8	x		\b, %u bytes
# Extended PAL Format
>>12	string		plth		\b, extended
# Simple PAL Format
>>12	string		data		
# data chunk size = color entries * 4 + 4 + sometimes extra (4) appended bytes
>>>16	ulelong		x		\b, data size %u
# palVersion is always 0x0300
#>>>20	leshort		x		\b, version %#4.4x
# palNumEntries specifies the number of palette color entries
>>>22	uleshort	x		\b, %u entries
# after palPalEntry sized (number of color entries * 4 ) vector
>>>(22.s*4)	ubequad	x		
# jump relative 22 ( 8 + 16) bytes forward points after end of file or to
# appended extra bytes like in http://safecolours.rigdenage.com/set(ms).zip/Protan(MS).pal
>>>>&16		ubelong	x		\b, extra bytes
>>>>>&-4	ubelong	>0		%#8.8x
# RIFF Device Independent Bitmap format
# URL: http://fileformats.archiveteam.org/wiki/RDIB
>8	string		RDIB		\b, device-independent bitmap
!:ext	rdi/dib
>>16	string		BM
>>>30	leshort		12		\b, OS/2 1.x format
>>>>34	leshort		x		\b, %d x
>>>>36	leshort		x		%d
>>>30	leshort		64		\b, OS/2 2.x format
>>>>34	leshort		x		\b, %d x
>>>>36	leshort		x		%d
>>>30	leshort		40		\b, Windows 3.x format
>>>>34	lelong		x		\b, %d x
>>>>38	lelong		x		%d x
>>>>44	leshort		x		%d
# RIFF MIDI format
# URL:	http://fileformats.archiveteam.org/wiki/RIFF_MIDI
>8	string		RMID		\b, MIDI
# http://extension.nirsoft.net/rmi
!:mime	audio/mid
#!:mime	audio/x-rmid
!:ext	rmi
# RIFF Multimedia Movie File format
# URL:	http://fileformats.archiveteam.org/wiki/RIFF_Multimedia_Movie
>8	string		RMMP		\b, multimedia movie
!:mime	video/x-mmm
!:ext	mmm
# RIFF wrapper for MP3
>8	string		RMP3		\b, MPEG Layer 3 audio
#!:mime	audio/x-rmp3
# Microsoft WAVE format (*.wav)
# URL:		http://fileformats.archiveteam.org/wiki/WAV
>8	string		WAVE		\b, WAVE audio
#!:mime	audio/vnd.wave
!:mime	audio/x-wav
# https://www.macdisk.com/macsigen.php
#!:apple	????WAVE
!:ext	wav/wave
>>12    string  >\0
>>>12   use     riff-walk
# TR500 call recorder extended header
>>16	ulelong		0x1E4
>>>20	leshort		0x11
>>>>256	byte		4
>>>>>256 use		tr500-call-recorder-header
# Update:	Joerg Jenderek
# lower case for Corel Draw version 8 Bidi
>8	string/c	cdr
# skip Corel CCX Clipart
>>8	string		!CDRXcont
# Corel Draw Picture
>>>0	use     corel-draw
# URL:		http://fileformats.archiveteam.org/wiki/CCX_(Corel)
# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/c/ccx-corel.trid.xml 
>>8	string		=CDRXcont	\b, Corel Clipart
!:mime	application/x-corel-ccx
!:ext	ccx
# 3rd chunk data {Corel\040Binary\040Meta\040File}
#>>>20	string		x		\b, 3rd '%-s'
>>>4	ulelong+8	x		\b, %u bytes
# From:		Joerg Jenderek
# URL:		https://en.wikipedia.org/wiki/CorelDRAW
# Reference:	http://fileformats.archiveteam.org/wiki/CorelDRAW
# Picture templates created by newer software start with RIFF type CDT
>8	string		CDT
>>0	use		corel-draw
# Picture templates with version 4.4
>8	string		CDST
>>0	use		corel-draw
# pattern created by newer software start with RIFF type PAT
>8	string		PAT
>>0	use		corel-draw
# From:		Joerg Jenderek
# URL:		https://en.wikipedia.org/wiki/Corel_Designer
# Reference:	http://fileformats.archiveteam.org/wiki/Corel_Designer
>8	string		DES
>>8	string		!DESC
>>>0	use		corel-des
# Corel Draw templates with version 12.5 or Corel Designer illustration 12
>>8	string		=DESC
# MORE TESTS NEEDED HERE!
#>>>0	use		corel-des
#>>>0	use		corel-draw
# From:		Joerg Jenderek
# URL:		http://fileformats.archiveteam.org/wiki/SHW_(Corel)
# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/s/shw-corel.trid.xml
# Note:		called "CorelSHOW presentation (v4)" by TrID
#		and "Corel Presentation" by DROID via PUID fmt/877
>8	string		shw4		\b, CorelSHOW presentation, version 4
#!:mime	application/octet-stream
!:mime	application/x-corel-shw
!:ext	shw
# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/s/shw-corel-5.trid.xml
# Note:		called "CorelSHOW presentation (v5)" by TrID
>8	string		shw5		\b, CorelSHOW presentation, version 5
#!:mime	application/octet-stream
!:mime	application/x-corel-shw
!:ext	shw
# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/s/shb-corel.trid.xml
# Note:		called "CorelSHOW Background (v5)" by TrID
>8	string		shl5		\b, CorelSHOW Background, version 5
#!:mime	application/octet-stream
!:mime	application/x-corel-shb
# GRR: no example
!:ext	shb
# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/s/shr-corel.trid.xml
# Note:		called "CorelSHOW player data (v5)" by TrID
>8	string		shr5		\b, CorelSHOW player data, version 5
#!:mime	application/octet-stream
!:mime	application/x-corel-shr
# GRR: no example
!:ext	shr
>8	string		NUNDROOT	\b, Steinberg CuBase
# From:		Joerg Jenderek
# URL:		http://fileformats.archiveteam.org/wiki/MIDI_Instrument_Definition_File
# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/i/idf.trid.xml
#		ftp://curscott.servebeer.com/Download/Apps/_Microsoft/
#  		Visual%20Studio%206.0%20Professional%20MSDN/
#		SAMPLES/VC98/SDK/GRAPHICS/AUDIO/IDFEDIT/GLOBALS.H 
# Note:		called "MIDI Instrument Definition File" by TrID
>8	string		IDF\ LIST	\b, MIDI Instrument Definition File
!:mime	audio/x-idf
!:ext	idf
# 3rd chunk size like: 254 284 286 670
#>>0x10	ulelong		x		\b, 3th SIZE %u
# for debugging purpose display next chunk like: MMAPhdr
#>>0x14	string		x		\b, 4th "%-8.8s"
#>>0x1C	ulelong		x		\b, 4th SIZE 0x%x
# probably MIDI instrument name like: "Universal-MIDI-Instrument" "instrument name" "General MIDI"
>>0x30	string		x		"%s"
# look for inst TAG
>>0x31	search/256	inst		by
# probably manufacture name like: "Unspecified Company" "NVidia Corporation"
>>>&0x24	string	x		"%s"
# From:		Joerg Jenderek
# URL:		https://en.wikipedia.org/wiki/Microsoft_Flight_Simulator
# Reference:	https://www.fsdeveloper.com/wiki/index.php?title=MDL_file_format_(FSX)
#		http://mark0.net/download/triddefs_xml.7z/defs/m/mdl-fs-gen.trid.xml
# Note:		called "Microsoft Flight Simulator 3D model (generic)" by TrID
>8	string		MDL
>>12	string		MDLH		\b, Microsoft Flight Simulator 3D model
#!:mime	application/x-riff
!:mime	application/x-ms-mdl
!:ext	mdl
#>>>8	string		MDL8		\b, version 8?
# AVI == Audio Video Interleave
# Reference:	http://fileformats.archiveteam.org/wiki/AVI
>8	string		AVI\040		\b, AVI
# https://reposcope.com/mimetype/video/x-msvideo
!:mime	video/x-msvideo
# https://www.iana.org/assignments/wave-avi-codec-registry/wave-avi-codec-registry.xml
#!:mime	video/vnd.avi
!:ext	avi/divx
>>12    string          LIST
>>>20   string          hdrlavih
>>>>&36 lelong          x               \b, %u x
>>>>&40 lelong          x               %u,
>>>>&4  lelong          >1000000        <1 fps,
>>>>&4  lelong          1000000         1.00 fps,
>>>>&4  lelong          500000          2.00 fps,
>>>>&4  lelong          333333          3.00 fps,
>>>>&4  lelong          250000          4.00 fps,
>>>>&4  lelong          200000          5.00 fps,
>>>>&4  lelong          166667          6.00 fps,
>>>>&4  lelong          142857          7.00 fps,
>>>>&4  lelong          125000          8.00 fps,
>>>>&4  lelong          111111          9.00 fps,
>>>>&4  lelong          100000          10.00 fps,
# ]9.9,10.1[
>>>>&4  lelong          <101010
>>>>>&-4        lelong  >99010
>>>>>>&-4       lelong  !100000         ~10 fps,
>>>>&4  lelong          83333           12.00 fps,
# ]11.9,12.1[
>>>>&4  lelong          <84034
>>>>>&-4        lelong  >82645
>>>>>>&-4       lelong  !83333          ~12 fps,
>>>>&4  lelong          66667           15.00 fps,
# ]14.9,15.1[
>>>>&4  lelong          <67114
>>>>>&-4        lelong  >66225
>>>>>>&-4       lelong  !66667          ~15 fps,
>>>>&4  lelong          50000           20.00 fps,
>>>>&4  lelong          41708           23.98 fps,
>>>>&4  lelong          41667           24.00 fps,
# ]23.9,24.1[
>>>>&4  lelong          <41841
>>>>>&-4        lelong  >41494
>>>>>>&-4       lelong  !41708
>>>>>>>&-4      lelong  !41667          ~24 fps,
>>>>&4  lelong          40000           25.00 fps,
# ]24.9,25.1[
>>>>&4  lelong          <40161
>>>>>&-4        lelong  >39841
>>>>>>&-4       lelong  !40000          ~25 fps,
>>>>&4  lelong          33367           29.97 fps,
>>>>&4  lelong          33333           30.00 fps,
# ]29.9,30.1[
>>>>&4  lelong          <33445
>>>>>&-4        lelong  >33223
>>>>>>&-4       lelong  !33367
>>>>>>>&-4      lelong  !33333          ~30 fps,
>>>>&4  lelong          <32224          >30 fps,
##>>>>&4  lelong          x               (%lu)
##>>>>&20 lelong          x               %lu frames,
# Note: The tests below assume that the AVI has 1 or 2 streams,
#       "vids" optionally followed by "auds".
#       (Should cover 99.9% of all AVIs.)
# assuming avih length = 56
>>>88   string  LIST
>>>>96  string  strlstrh
>>>>>108        string  vids    video:
>>>>>>&0        lelong  0               uncompressed
# skip past vids strh
>>>>>>(104.l+108)       string  strf
>>>>>>>(104.l+132)      lelong          1       RLE 8bpp
>>>>>>>(104.l+132)      string/c        anim    Intel RDX
>>>>>>>(104.l+132)      string/c        aur2    AuraVision Aura 2
>>>>>>>(104.l+132)      string/c        aura    AuraVision Aura
>>>>>>>(104.l+132)      string/c        bt20    Brooktree MediaStream
>>>>>>>(104.l+132)      string/c        btcv    Brooktree Composite Video
>>>>>>>(104.l+132)      string/c        cc12    Intel YUV12
>>>>>>>(104.l+132)      string/c        cdvc    Canopus DV
>>>>>>>(104.l+132)      string/c        cham    Winnov Caviara Cham
>>>>>>>(104.l+132)      string/c        cljr    Proprietary YUV 4 pixels
>>>>>>>(104.l+132)      string/c        cmyk    Common Data Format in Printing
>>>>>>>(104.l+132)      string/c        cpla    Weitek 4:2:0 YUV Planar
>>>>>>>(104.l+132)      string/c        cvid    Cinepak
>>>>>>>(104.l+132)      string/c        cwlt    Microsoft Color WLT DIB
>>>>>>>(104.l+132)      string/c        cyuv    Creative Labs YUV
>>>>>>>(104.l+132)      string/c        d261    H.261
>>>>>>>(104.l+132)      string/c        d263    H.263
>>>>>>>(104.l+132)      string/c        duck    TrueMotion 1.0
>>>>>>>(104.l+132)      string/c        dve2    DVE-2 Videoconferencing
>>>>>>>(104.l+132)      string/c        fljp    Field Encoded Motion JPEG
>>>>>>>(104.l+132)      string/c        fvf1    Fractal Video Frame
>>>>>>>(104.l+132)      string/c        gwlt    Microsoft Greyscale WLT DIB
>>>>>>>(104.l+132)      string/c        h260    H.260
>>>>>>>(104.l+132)      string/c        h261    H.261
>>>>>>>(104.l+132)      string/c        h262    H.262
>>>>>>>(104.l+132)      string/c        h263    H.263
>>>>>>>(104.l+132)      string/c        h264    H.264
>>>>>>>(104.l+132)      string/c        h265    H.265
>>>>>>>(104.l+132)      string/c        h266    H.266
>>>>>>>(104.l+132)      string/c        h267    H.267
>>>>>>>(104.l+132)      string/c        h268    H.268
>>>>>>>(104.l+132)      string/c        h269    H.269
>>>>>>>(104.l+132)      string/c        i263    Intel I.263
>>>>>>>(104.l+132)      string/c        i420    Intel Indeo 4
>>>>>>>(104.l+132)      string/c        ian     Intel RDX
>>>>>>>(104.l+132)      string/c        iclb    CellB Videoconferencing Codec
>>>>>>>(104.l+132)      string/c        ilvc    Intel Layered Video
>>>>>>>(104.l+132)      string/c        ilvr    ITU-T H.263+
>>>>>>>(104.l+132)      string/c        iraw    Intel YUV Uncompressed
>>>>>>>(104.l+132)      string/c        iv30    Intel Indeo 3
>>>>>>>(104.l+132)      string/c        iv31    Intel Indeo 3.1
>>>>>>>(104.l+132)      string/c        iv32    Intel Indeo 3.2
>>>>>>>(104.l+132)      string/c        iv33    Intel Indeo 3.3
>>>>>>>(104.l+132)      string/c        iv34    Intel Indeo 3.4
>>>>>>>(104.l+132)      string/c        iv35    Intel Indeo 3.5
>>>>>>>(104.l+132)      string/c        iv36    Intel Indeo 3.6
>>>>>>>(104.l+132)      string/c        iv37    Intel Indeo 3.7
>>>>>>>(104.l+132)      string/c        iv38    Intel Indeo 3.8
>>>>>>>(104.l+132)      string/c        iv39    Intel Indeo 3.9
>>>>>>>(104.l+132)      string/c        iv40    Intel Indeo 4.0
>>>>>>>(104.l+132)      string/c        iv41    Intel Indeo 4.1
>>>>>>>(104.l+132)      string/c        iv42    Intel Indeo 4.2
>>>>>>>(104.l+132)      string/c        iv43    Intel Indeo 4.3
>>>>>>>(104.l+132)      string/c        iv44    Intel Indeo 4.4
>>>>>>>(104.l+132)      string/c        iv45    Intel Indeo 4.5
>>>>>>>(104.l+132)      string/c        iv46    Intel Indeo 4.6
>>>>>>>(104.l+132)      string/c        iv47    Intel Indeo 4.7
>>>>>>>(104.l+132)      string/c        iv48    Intel Indeo 4.8
>>>>>>>(104.l+132)      string/c        iv49    Intel Indeo 4.9
>>>>>>>(104.l+132)      string/c        iv50    Intel Indeo 5.0
>>>>>>>(104.l+132)      string/c        mpeg    MPEG 1 Video Frame
>>>>>>>(104.l+132)      string/c        mjpg    Motion JPEG
>>>>>>>(104.l+132)      string/c        mp42    Microsoft MPEG-4 v2
>>>>>>>(104.l+132)      string/c        mp43    Microsoft MPEG-4 v3
>>>>>>>(104.l+132)      string/c        mrca    MR Codec
>>>>>>>(104.l+132)      string/c        mrle    Run Length Encoding
>>>>>>>(104.l+132)      string/c        msvc    Microsoft Video 1
>>>>>>>(104.l+132)      string/c        phmo    Photomotion
>>>>>>>(104.l+132)      string/c        qpeq    QPEG 1.1 Format Video
>>>>>>>(104.l+132)      string/c        rgbt    RGBT
>>>>>>>(104.l+132)      string/c        rle4    Run Length Encoded 4
>>>>>>>(104.l+132)      string/c        rle8    Run Length Encoded 8
>>>>>>>(104.l+132)      string/c        rt21    Intel Indeo 2.1
>>>>>>>(104.l+132)      string/c        rvx     Intel RDX
>>>>>>>(104.l+132)      string/c        sdcc    Sun Digital Camera Codec
>>>>>>>(104.l+132)      string/c        sfmc    Crystal Net SFM Codec
>>>>>>>(104.l+132)      string/c        smsc    SMSC
>>>>>>>(104.l+132)      string/c        smsd    SMSD
>>>>>>>(104.l+132)      string/c        splc    Splash Studios ACM Audio Codec
>>>>>>>(104.l+132)      string/c        sqz2    Microsoft VXtreme Video Codec
>>>>>>>(104.l+132)      string/c        sv10    Sorenson Video R1
>>>>>>>(104.l+132)      string/c        tlms    TeraLogic Motion Intraframe Codec A
>>>>>>>(104.l+132)      string/c        tlst    TeraLogic Motion Intraframe Codec B
>>>>>>>(104.l+132)      string/c        tm20    TrueMotion 2.0
>>>>>>>(104.l+132)      string/c        tmic    TeraLogic Motion Intraframe Codec 2
>>>>>>>(104.l+132)      string/c        tmot    TrueMotion Video Compression
>>>>>>>(104.l+132)      string/c        tr20    TrueMotion RT 2.0
>>>>>>>(104.l+132)      string/c        ulti    Ultimotion
>>>>>>>(104.l+132)      string/c        uyvy    UYVY 4:2:2 byte ordering
>>>>>>>(104.l+132)      string/c        v422    24-bit YUV 4:2:2 format
>>>>>>>(104.l+132)      string/c        v655    16-bit YUV 4:2:2 format
>>>>>>>(104.l+132)      string/c        vcr1    ATI VCR 1.0
>>>>>>>(104.l+132)      string/c        vcr2    ATI VCR 2.0
>>>>>>>(104.l+132)      string/c        vcr3    ATI VCR 3.0
>>>>>>>(104.l+132)      string/c        vcr4    ATI VCR 4.0
>>>>>>>(104.l+132)      string/c        vcr5    ATI VCR 5.0
>>>>>>>(104.l+132)      string/c        vcr6    ATI VCR 6.0
>>>>>>>(104.l+132)      string/c        vcr7    ATI VCR 7.0
>>>>>>>(104.l+132)      string/c        vcr8    ATI VCR 8.0
>>>>>>>(104.l+132)      string/c        vcr9    ATI VCR 9.0
>>>>>>>(104.l+132)      string/c        vdct    Video Maker Pro DIB
>>>>>>>(104.l+132)      string/c        vids    YUV 4:2:2 CCIR 601 for V422
>>>>>>>(104.l+132)      string/c        vivo    Vivo H.263
>>>>>>>(104.l+132)      string/c        vixl    VIXL
>>>>>>>(104.l+132)      string/c        vlv1    VLCAP.DRV
>>>>>>>(104.l+132)      string/c        wbvc    W9960
>>>>>>>(104.l+132)      string/c        x263    mmioFOURCC('X','2','6','3')
>>>>>>>(104.l+132)      string/c        xlv0    XL Video Decoder
>>>>>>>(104.l+132)      string/c        y211    YUV 2:1:1 Packed
>>>>>>>(104.l+132)      string/c        y411    YUV 4:1:1 Packed
>>>>>>>(104.l+132)      string/c        y41b    YUV 4:1:1 Planar
>>>>>>>(104.l+132)      string/c        y41p    PC1 4:1:1
>>>>>>>(104.l+132)      string/c        y41t    PC1 4:1:1 with transparency
>>>>>>>(104.l+132)      string/c        y42b    YUV 4:2:2 Planar
>>>>>>>(104.l+132)      string/c        y42t    PC1 4:2:2 with transparency
>>>>>>>(104.l+132)      string/c        yc12    Intel YUV12 Codec
>>>>>>>(104.l+132)      string/c        yuv8    Winnov Caviar YUV8
>>>>>>>(104.l+132)      string/c        yuv9    YUV9
>>>>>>>(104.l+132)      string/c        yuy2    YUY2 4:2:2 byte ordering packed
>>>>>>>(104.l+132)      string/c        yuyv    BI_YUYV, Canopus
>>>>>>>(104.l+132)      string/c        fmp4    FFMpeg MPEG-4
>>>>>>>(104.l+132)      string/c        div3    DivX 3
>>>>>>>>112             string/c        div3    Low-Motion
>>>>>>>>112             string/c        div4    Fast-Motion
>>>>>>>(104.l+132)      string/c        divx    DivX 4
>>>>>>>(104.l+132)      string/c        dx50    DivX 5
>>>>>>>(104.l+132)      string/c        xvid    XviD
>>>>>>>(104.l+132)	string/c	h264	H.264
>>>>>>>(104.l+132)      string/c        wmv3    Windows Media Video 9
>>>>>>>(104.l+132)      string/c        h264    X.264 or H.264
>>>>>>>(104.l+132)      lelong  0
##>>>>>>>(104.l+132)      string  x       (%.4s)
# skip past first (video) LIST
>>>>(92.l+96)   string  LIST
>>>>>(92.l+104) string  strlstrh
>>>>>>(92.l+116)        string          auds    \b, audio:
# auds strh length = 56:
>>>>>>>(92.l+172)       string          strf
>>>>>>>>(92.l+180)      leshort 0x0001  uncompressed PCM
>>>>>>>>(92.l+180)      leshort 0x0002  ADPCM
>>>>>>>>(92.l+180)      leshort 0x0006  aLaw
>>>>>>>>(92.l+180)      leshort 0x0007  uLaw
>>>>>>>>(92.l+180)      leshort 0x0050  MPEG-1 Layer 1 or 2
>>>>>>>>(92.l+180)      leshort 0x0055  MPEG-1 Layer 3
>>>>>>>>(92.l+180)      leshort 0x2000  Dolby AC3
>>>>>>>>(92.l+180)      leshort 0x0161  DivX
##>>>>>>>>(92.l+180)      leshort x       (%#.4x)
>>>>>>>>(92.l+182)      leshort 1       (mono,
>>>>>>>>(92.l+182)      leshort 2       (stereo,
>>>>>>>>(92.l+182)      leshort >2      (%d channels,
>>>>>>>>(92.l+184)      lelong  x       %d Hz)
# auds strh length = 64:
>>>>>>>(92.l+180)       string          strf
>>>>>>>>(92.l+188)      leshort 0x0001  uncompressed PCM
>>>>>>>>(92.l+188)      leshort 0x0002  ADPCM
>>>>>>>>(92.l+188)      leshort 0x0055  MPEG-1 Layer 3
>>>>>>>>(92.l+188)      leshort 0x2000  Dolby AC3
>>>>>>>>(92.l+188)      leshort 0x0161  DivX
##>>>>>>>>(92.l+188)      leshort x       (%#.4x)
>>>>>>>>(92.l+190)      leshort 1       (mono,
>>>>>>>>(92.l+190)      leshort 2       (stereo,
>>>>>>>>(92.l+190)      leshort >2      (%d channels,
>>>>>>>>(92.l+192)      lelong  x       %d Hz)
# From:		Joerg Jenderek
# URL:		http://fileformats.archiveteam.org/wiki/VDR_(VirtualDub)
# Reference:	http://sourceforge.net/projects/virtualdub/files/virtualdub-win/
#		1.10.4.35491/VirtualDub-1.10.4-src.7z/src/vdremote/Main.cpp
# VirtualDub link handler
>8	string		VDRM		\b, VirtualDub link
!:mime	video/x-vdr
!:ext	vdr
>>12	string		PATH		\b, PATH
# remote-path to video file
>>16	pstring/l	x		%s
# Animated Cursor format
# Update:	Joerg Jenderek
# URL:		http://fileformats.archiveteam.org/wiki/Windows_Animated_Cursor
# Reference:	https://www.gdgsoft.com/anituner/help/aniformat.htm
>8	string		ACON		\b, animated cursor
!:mime	application/x-navi-animation
# http://extension.nirsoft.net/ani
#!:mime	image/ani
!:ext	ani
# INAM tag followed by length of title
>>24	string		INAM
>>>28	pstring/l	x		"%s"
# IART tag followed by length of author
>>>(28.l+32)	ubelong	0x49415254
>>>>&0	pstring/l	x		%s
# SoundFont 2 <mpruett@sgi.com>
# URL:	http://fileformats.archiveteam.org/wiki/SoundFont_2.0
>8	string		sfbk		\b, SoundFont/Bank
!:mime	audio/x-sfbk
!:ext	sf2
# MPEG-1 wrapped in a RIFF, apparently
# URL:	http://file.fyicenter.com/17_Video_.DAT_File_Extension_for_VCD_Files.html
>8      string          CDXA            \b, wrapped MPEG-1 (CDXA)
!:mime	video/x-cdxa
!:ext	mpg/dat
# URL:	http://fileformats.archiveteam.org/wiki/4X_IMA_ADPCM
>8	string		4XMV		\b, 4X Movie file
!:mime	video/x-4xmv
!:ext	4xm/4xa
# AMV-type AVI file: https://wiki.multimedia.cx/index.php?title=AMV
>8	string		AMV\040		\b, AMV
# http://fileformats.archiveteam.org/wiki/MTV_Video_(.AMV)
!:mime	video/x-amv
!:ext	amv
#!:ext	amv/mtv
# URL:	http://fileformats.archiveteam.org/wiki/WebP
>8      string          WEBP            \b, Web/P image
!:mime	image/webp
!:ext	webp
>>12	use		riff-walk
# From:		Joerg Jenderek
# URL:		http://fileformats.archiveteam.org/wiki/RIFF_MIDS
>8      string          MIDS            \b, MIDI Stream
!:mime	audio/x-mids
!:ext	mds
# From:		Joerg Jenderek
# URL:		http://mark0.net/soft-trid-e.html
# Reference:	http://fileformats.archiveteam.org/wiki/Trd_(TRID)
>8      string          TRID            \b, TrID defs package
!:mime	application/x-trid-trd
!:ext	trd
# From:		Joerg Jenderek
# URL:		http://fileformats.archiveteam.org/wiki/Easy_CD_Creator
#		https://en.wikipedia.org/wiki/Roxio
# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/i/img-cif.trid.xml
# Note:		called "Easy CD Creator disk image" by TrID,
#		"Adaptec CD Image File" by Adaptec CD Creator 2.1.082 1995-1996 and
#		"Easy CD/DVD Creator image" by PowerISO 8.5
>8      string          imag            \b, Easy CD Creator disk image
#!:mime	application/octet-stream
#!:mime	application/x-riff
!:mime	application/x-corel-cif
!:ext	cif
# contains also 2 strings disc info
# look for ISO 9660 CD-ROM tag handled by ./filesystems
>>32769	search/4565/s	CD001	\b; with
>>>&-32769	use	cdrom
# From:		Joerg Jenderek
# URL:		https://en.wikipedia.org/wiki/CorelDRAW
# Reference:	http://fileformats.archiveteam.org/wiki/CorelDRAW
# Note:		Since version 3 CorelDraw Pictures are RIFF based
# but data chunks remain proprietary.
# Since version 14 til 15 packed as "content/riffData.cdr" and
# since 16 "content/root.dat" in ZIP container
# TODO:		distinguish templates with version 12.5 from Designer illustration 12
#	display information of RIFF based Corel Draw pictures, templates and patterns
0	name   	corel-draw
# display second chunk for debugging
#>8	string		x		\b, [8]=%.8s
>0	string		x		\b, Corel Draw
#!:mime	image/x-coreldraw
!:mime	application/vnd.corel-draw
# used by newer pictures templates
>>8	string		CDT
# used by templates with newer versions since 16
>>>12	string		=fver		Picture template (root.dat)
!:ext	dat
# used by templates with older versions with vrsn tag
>>>12	string		!fver
# used by templates with older versions 14-15
>>>>11	string		>E		Picture template (riffData.cdr)
!:ext	cdr
# used by templates with older versions 11-13
>>>>11	string		<F		Picture template
!:ext	cdt/cdrt
# used by older templates with version 4.4
>>8	string		CDST		Picture template
!:ext	cdt
# used by templates with version 12.5
>>8	string		DESC		Picture template
!:ext	cdt
# used by newer patterns with version 22
>>8	string		PAT		Pattern
!:ext	dat
# remaining older templates, patterns, drawings
>>8	default		x
# pattern with old version 4.y
>>>26	ulelong		=0x0000206C	Pattern
!:ext	pat
# pattern with newer versions
>>>26	ulelong		=0x00000D2C	Pattern
!:ext	pat
# remaining older templates or pictures
>>>26	default		x
# used by older versions 5 - 15
>>>>12	string		=vrsn
# 4th chunk size unequal 282Ch only found for CDR
>>>>>26	ulelong		!0x0000282c	Picture
!:ext	cdr
>>>>>26	default		x		Picture or template
!:ext	cdr/cdt
# used by newer versions since 16
>>>>12	string		=fver		Picture (root.dat)
!:ext	dat
# version marked by 1 ASCII char: space~3, ... , F~15,  ... , N~22, ... R~22 template
>11	string		x		\b, version
>11	string		>\040		'%-.1s'
>0	use		corel-version
>4	ulelong+8	x		\b, %u bytes
#
#	display numeric version of RIFF based Corel after 3rd RIFF tag
0	name   	corel-version
# for debugging purpose; vrsn for short content; fver for 16 byte size
#>12	string		x		\b, TAG "%-4.4s"
# 1st data chunk length 2 implies short content version
>16	ulelong		2
# vrsn chunk short content interpreted by MajorVersion * 100 + MinorVersion
>>20	uleshort/100	x		%u
>>20	uleshort%100	>0		\b.%u
# for debugging purpose display next chunk like: DISP LIST
#>>22	string		x		\b, 4th "%-4.4s"
#>>26	ulelong		x		\b, 4th SIZE %#x
# for debugging purpose display 5th chunk like: LIST DISP ccmm osfp
#>>(26.l+30)	string	x		\b, 5th "%-4.4s"
# 1st data chunk length 10h implies 16 byte content with version info
>16	ulelong		0x10
>>34	ubyte		x		%u
>>>33	ubyte		>0		\b.%u
#	display information of RIFF based Corel Design formats
0	name   	corel-des
# display second chunk for debugging
#>8	string		x		\b, [8]=%.8s
>12	string		x		\b, Corel DESIGNER
!:mime	image/x-corel-des
#!:mime	application/x-vnd.corel.designer.document
# used by Corel Designer with newer versions since 16
>12	string		=fver		graphics (root.dat)
!:ext	dat
# used by Corel Designer templates with older versions with vrsn tag
>12	string		!fver
# used by Corel Designer with versions 14-15
>>11	string		>D		graphics (riffData.cdr)
!:ext	cdr
# used by Corel Designer with versions 10-12
>>11	string		<E		graphics
!:ext	des
# version indicated by last ASCII char of second chunk tag
>11	string		x		\b, version '%-.1s'
# but vrsn short content is not always version indicator
# exceptions: 'A'~11.4 'B'~12 'C'~12.5
>11	string		>D
>>0	use		corel-version
# for debugging purpose display next chunk like: DISP LIST
#>>22	string		x		\b, 4th "%-4.4s"
#>>26	ulelong		x		\b, 4th SIZE %#x
# for debugging purpose display 5th chunk like: LIST osfp
#>>(26.l+30)	string	x		\b, 5th "%-4.4s"
>4	ulelong+8	x		\b, %u bytes

#
# XXX - some of the below may only appear in little-endian form.
#
# Also "MV93" appears to be for one form of Macromedia Director
# files, and "GDMF" appears to be another multimedia format.
#
0	string		RIFX		RIFF (big-endian) data
# RIFF Palette format
>8	string		PAL		\b, palette
>>16	beshort		x		\b, version %d
>>18	beshort		x		\b, %d entries
# RIFF Device Independent Bitmap format
>8	string		RDIB		\b, device-independent bitmap
>>16	string		BM
>>>30	beshort		12		\b, OS/2 1.x format
>>>>34	beshort		x		\b, %d x
>>>>36	beshort		x		%d
>>>30	beshort		64		\b, OS/2 2.x format
>>>>34	beshort		x		\b, %d x
>>>>36	beshort		x		%d
>>>30	beshort		40		\b, Windows 3.x format
>>>>34	belong		x		\b, %d x
>>>>38	belong		x		%d x
>>>>44	beshort		x		%d
# RIFF MIDI format
>8	string		RMID		\b, MIDI
# RIFF Multimedia Movie File format
>8	string		RMMP		\b, multimedia movie
# Microsoft WAVE format (*.wav)
>8	string		WAVE		\b, WAVE audio
>>20	leshort		1		\b, Microsoft PCM
>>>34	leshort		>0		\b, %d bit
>>22	beshort		=1		\b, mono
>>22	beshort		=2		\b, stereo
>>22	beshort		>2		\b, %d channels
>>24	belong		>0		%d Hz
# Corel Draw Picture big endian not tested by real examples
#>8	string		CDRA		\b, Corel Draw Picture
#>8	string		CDR6		\b, Corel Draw Picture, version 6
>8	string		CDR
>>0	use     \^corel-draw

# AVI == Audio Video Interleave
>8	string		AVI\040		\b, AVI
# Animated Cursor format
>8	string		ACON		\b, animated cursor
# Notation Interchange File Format (big-endian only)
>8	string		NIFF		\b, Notation Interchange File Format
# SoundFont 2 <mpruett@sgi.com>
>8	string		sfbk		SoundFont/Bank

#------------------------------------------------------------------------------
# Sony Wave64
# see http://www.vcs.de/fileadmin/user_upload/MBS/PDF/Whitepaper/Informations_about_Sony_Wave64.pdf
# 128 bit RIFF-GUID { 66666972-912E-11CF-A5D6-28DB04C10000 } in little-endian
0	string	riff\x2E\x91\xCF\x11\xA5\xD6\x28\xDB\x04\xC1\x00\x00		Sony Wave64 RIFF data
# 128 bit + total file size (64 bits) so 24 bytes
# then WAVE-GUID { 65766177-ACF3-11D3-8CD1-00C04F8EDB8A }
>24	string		wave\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A		\b, WAVE 64 audio
!:mime	audio/x-w64
# FMT-GUID { 20746D66-ACF3-11D3-8CD1-00C04F8EDB8A }
>>40	search/256	fmt\x20\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A		\b
>>>&10	leshort		=1		\b, mono
>>>&10	leshort		=2		\b, stereo
>>>&10	leshort		>2		\b, %d channels
>>>&12	lelong		>0		%d Hz

#------------------------------------------------------------------------------
# MBWF/RF64
# see EBU TECH 3306 https://tech.ebu.ch/docs/tech/tech3306-2009.pdf
0	string	RF64\xff\xff\xff\xffWAVEds64		MBWF/RF64 audio
!:mime	audio/x-wav
>40	search/256	fmt\x20		\b
>>&6	leshort		=1		\b, mono
>>&6	leshort		=2		\b, stereo
>>&6	leshort		>2		\b, %d channels
>>&8	lelong		>0		%d Hz
