audio

sleuthit-2.09 一个磁盘的工具集

#------------------------------------------------------------------------------
# audio:  file(1) magic for sound formats (see also "iff")
#
# Jan Nicolai Langfeldt ([e-mail]), Dan Quinlan ([e-mail]),
# and others
#

# Sun/NeXT audio data
0	string		.snd		Sun/NeXT audio data:
>12	belong		1		8-bit ISDN mu-law,
>12	belong		2		8-bit linear PCM [REF-PCM],
>12	belong		3		16-bit linear PCM,
>12	belong		4		24-bit linear PCM,
>12	belong		5		32-bit linear PCM,
>12	belong		6		32-bit IEEE floating point,
>12	belong		7		64-bit IEEE floating point,
>12	belong		8		Fragmented sample data,
>12	belong		10		DSP program,
>12	belong		11		8-bit fixed point,
>12	belong		12		16-bit fixed point,
>12	belong		13		24-bit fixed point,
>12	belong		14		32-bit fixed point,
>12	belong		18		16-bit linear with emphasis,
>12	belong		19		16-bit linear compressed,
>12	belong		20		16-bit linear with emphasis and compression,
>12	belong		21		Music kit DSP commands,
>12	belong		23		8-bit ISDN mu-law compressed (CCITT G.721 ADPCM voice enc.),
>12	belong		24		compressed (8-bit CCITT G.722 ADPCM)
>12	belong		25		compressed (3-bit CCITT G.723.3 ADPCM),
>12	belong		26		compressed (5-bit CCITT G.723.5 ADPCM),
>12	belong		27		8-bit A-law (CCITT G.711),
>20	belong		1		mono,
>20	belong		2		stereo,
>20	belong		4		quad,
>16	belong		>0		%d Hz

# DEC systems (e.g. DECstation 5000) use a variant of the Sun/NeXT format
# that uses little-endian encoding and has a different magic number
0	lelong		0x0064732E	DEC audio data:
>12	lelong		1		8-bit ISDN mu-law,
>12	lelong		2		8-bit linear PCM [REF-PCM],
>12	lelong		3		16-bit linear PCM,
>12	lelong		4		24-bit linear PCM,
>12	lelong		5		32-bit linear PCM,
>12	lelong		6		32-bit IEEE floating point,
>12	lelong		7		64-bit IEEE floating point,
>12	belong		8		Fragmented sample data,
>12	belong		10		DSP program,
>12	belong		11		8-bit fixed point,
>12	belong		12		16-bit fixed point,
>12	belong		13		24-bit fixed point,
>12	belong		14		32-bit fixed point,
>12	belong		18		16-bit linear with emphasis,
>12	belong		19		16-bit linear compressed,
>12	belong		20		16-bit linear with emphasis and compression,
>12	belong		21		Music kit DSP commands,
>12	lelong		23		8-bit ISDN mu-law compressed (CCITT G.721 ADPCM voice enc.),
>12	belong		24		compressed (8-bit CCITT G.722 ADPCM)
>12	belong		25		compressed (3-bit CCITT G.723.3 ADPCM),
>12	belong		26		compressed (5-bit CCITT G.723.5 ADPCM),
>12	belong		27		8-bit A-law (CCITT G.711),
>20	lelong		1		mono,
>20	lelong		2		stereo,
>20	lelong		4		quad,
>16	lelong		>0		%d Hz

# Creative Labs AUDIO stuff
0	string	MThd			Standard MIDI data
>8 	beshort	x			(format %d)
>10	beshort	x			using %d track
>10	beshort		>1		\bs
>12	beshort&0x7fff	x		at 1/%d
>12	beshort&0x8000	>0		SMPTE

0	string	CTMF			Creative Music (CMF) data
0	string	SBI			SoundBlaster instrument data
0	string	Creative\ Voice\ File	Creative Labs voice data
# is this next line right?  it came this way...
>19	byte	0x1A
>23	byte	>0			- version %d
>22	byte	>0			\b.%d

# first entry is also the string "NTRK"
0	belong		0x4e54524b	MultiTrack sound data
>4	belong		x		- version %ld

# Extended MOD format (*.emd) (Greg Roelofs, [e-mail]); NOT TESTED
# [based on posting 940824 by "Dirk/Elastik", [e-mail]]
0	string		EMOD		Extended MOD sound data,
>4	byte&0xf0	x		version %d
>4	byte&0x0f	x		\b.%d,
>45	byte		x		%d instruments
>83	byte		0		(module)
>83	byte		1		(song)

# Real Audio (Magic .ra\0375)
0	belong		0x2e7261fd	RealAudio sound file
0	string		.RMF		RealMedia file

# MTM/669/FAR/S3M/ULT/XM format checking [Aaron Eppert, [e-mail]]
# Oct 31, 1995
# fixed by <[e-mail]> 2003-06-24
# Too short...
#0	string		MTM		MultiTracker Module sound file
#0	string		if		Composer 669 Module sound data
#0	string		JN		Composer 669 Module sound data (extended format)
0	string		MAS_U		ULT(imate) Module sound data

#0	string		FAR		Module sound data
#>4	string		>\15		Title: "%s"

0x2c	string		SCRM		ScreamTracker III Module sound data
>0	string		>\0		Title: "%s"

# Gravis UltraSound patches
# From <[e-mail]>

0	string		GF1PATCH110\0ID#000002\0	GUS patch
0	string		GF1PATCH100\0ID#000002\0	Old GUS	patch

#
# Taken from loader code from mikmod version 2.14
# by Steve McIntyre ([e-mail])
# <[e-mail]> added title printing on 2003-06-24
0	string	MAS_UTrack_V00
>14	string	>/0		ultratracker V1.%.1s module sound data

0	string	UN05		MikMod UNI format module sound data

0	string	Extended\ Module: Fasttracker II module sound data
>17	string	>\0		Title: "%s"

21	string/c	=!SCREAM!	Screamtracker 2 module sound data
21	string	BMOD2STM	Screamtracker 2 module sound data
1080	string	M.K.		4-channel Protracker module sound data
>0	string	>\0		Title: "%s"
1080	string	M!K!		4-channel Protracker module sound data
>0	string	>\0		Title: "%s"
1080	string	FLT4		4-channel Startracker module sound data
>0	string	>\0		Title: "%s"
1080	string	FLT8		8-channel Startracker module sound data
>0	string	>\0		Title: "%s"
1080	string	4CHN		4-channel Fasttracker module sound data
>0	string	>\0		Title: "%s"
1080	string	6CHN		6-channel Fasttracker module sound data
>0	string	>\0		Title: "%s"
1080	string	8CHN		8-channel Fasttracker module sound data
>0	string	>\0		Title: "%s"
1080	string	CD81		8-channel Octalyser module sound data
>0	string	>\0		Title: "%s"
1080	string	OKTA		8-channel Oktalyzer module sound data
>0	string	>\0		Title: "%s"
# Not good enough.
#1082	string	CH
#>1080	string	>/0		%.2s-channel Fasttracker "oktalyzer" module sound data
1080	string	16CN		16-channel Taketracker module sound data
>0	string	>\0		Title: "%s"
1080	string	32CN		32-channel Taketracker module sound data
>0	string	>\0		Title: "%s"

# TOC sound files -Trevor Johnson <[e-mail]>
#
0       string          TOC             TOC sound file

# sidfiles <[e-mail]>
# added name,author,(c) and new RSID type by <[e-mail]> 2003-06-24
0	string		SIDPLAY\ INFOFILE	Sidplay info file

0	string		PSID			PlaySID v2.2+ (AMIGA) sidtune
>4	beshort		>0			w/ header v%d,
>14	beshort		=1			single song,
>14	beshort		>1			%d songs,
>16	beshort		>0			default song: %d
>0x16	string		>\0			name: "%s"
>0x36	string		>\0			author: "%s"
>0x56	string		>\0			copyright: "%s"

0	string		RSID			RSID sidtune PlaySID compatible
>4	beshort		>0			w/ header v%d,
>14	beshort		=1			single song,
>14	beshort		>1			%d songs,
>16	beshort		>0			default song: %d
>0x16	string		>\0			name: "%s"
>0x36	string		>\0			author: "%s"
>0x56	string		>\0			copyright: "%s"

# IRCAM <[e-mail]>
# VAX and MIPS files are little-endian; Sun and NeXT are big-endian
0	belong		0x64a30100		IRCAM file (VAX)
0	belong		0x64a30200		IRCAM file (Sun)
0	belong		0x64a30300		IRCAM file (MIPS little-endian)
0	belong		0x64a30400		IRCAM file (NeXT)

# NIST SPHERE <[e-mail]>
0	string		NIST_1A\n\ \ \ 1024\n	NIST SPHERE file

# Sample Vision <[e-mail]>
0	string		SOUND\ SAMPLE\ DATA\ 	Sample Vision file

# Audio Visual Research <[e-mail]>
0	string		2BIT			Audio Visual Research file,
>12	beshort		=0			mono,
>12	beshort		=-1			stereo,
>14	beshort		x			%d bits
>16	beshort		=0			unsigned,
>16	beshort		=-1			signed,
>22	belong&0x00ffffff	x		%d Hz,
>18	beshort		=0			no loop,
>18	beshort		=-1			loop,
>21	ubyte		<=127			note %d,
>22	byte		=0			replay 5.485 KHz
>22	byte		=1			replay 8.084 KHz
>22	byte		=2			replay 10.971 Khz
>22	byte		=3			replay 16.168 Khz
>22	byte		=4			replay 21.942 KHz
>22	byte		=5			replay 32.336 KHz
>22	byte		=6			replay 43.885 KHz
>22	byte		=7			replay 47.261 KHz

# SGI SoundTrack <[e-mail]>
0	string		_SGI_SoundTrack		SGI SoundTrack project file
# ID3 version 2 tags <[e-mail]>
0	string		ID3	Audio file with ID3 version 2
>3	ubyte	<0xff	\b%d.
>4	ubyte	<0xff	\b%d tag
>2584	string	fLaC		\b, FLAC encoding
>>2588	byte&0x7f		>0		\b, unknown version
>>2588	byte&0x7f		0		\b
# some common bits/sample values
>>>2600	beshort&0x1f0		0x030		\b, 4 bit
>>>2600	beshort&0x1f0		0x050		\b, 6 bit
>>>2600	beshort&0x1f0		0x070		\b, 8 bit
>>>2600	beshort&0x1f0		0x0b0		\b, 12 bit
>>>2600	beshort&0x1f0		0x0f0		\b, 16 bit
>>>2600	beshort&0x1f0		0x170		\b, 24 bit
>>>2600	byte&0xe		0x0		\b, mono
>>>2600	byte&0xe		0x2		\b, stereo
>>>2600	byte&0xe		0x4		\b, 3 channels
>>>2600	byte&0xe		0x6		\b, 4 channels
>>>2600	byte&0xe		0x8		\b, 5 channels
>>>2600	byte&0xe		0xa		\b, 6 channels
>>>2600	byte&0xe		0xc		\b, 7 channels
>>>2600	byte&0xe		0xe		\b, 8 channels
# some common sample rates
>>>2597	belong&0xfffff0		0x0ac440	\b, 44.1 kHz
>>>2597	belong&0xfffff0		0x0bb800	\b, 48 kHz
>>>2597	belong&0xfffff0		0x07d000	\b, 32 kHz
>>>2597	belong&0xfffff0		0x056220	\b, 22.05 kHz
>>>2597	belong&0xfffff0		0x05dc00	\b, 24 kHz
>>>2597	belong&0xfffff0		0x03e800	\b, 16 kHz
>>>2597	belong&0xfffff0		0x02b110	\b, 11.025 kHz
>>>2597	belong&0xfffff0		0x02ee00	\b, 12 kHz
>>>2597	belong&0xfffff0		0x01f400	\b, 8 kHz
>>>2597	belong&0xfffff0		0x177000	\b, 96 kHz
>>>2597	belong&0xfffff0		0x0fa000	\b, 64 kHz
>>>2601	byte&0xf		>0		\b, >4G samples
>2584	string	!fLaC		\b, MP3 encoding

# NSF (NES sound file) magic
0	string		NESM\x1a	NES Sound File
>14	string		>\0		("%s" by
>46	string		>\0		%s, copyright
>78	string		>\0		%s),
>5	byte		x		version %d,
>6	byte		x		%d tracks,
>122	byte&0x2	=1		dual PAL/NTSC
>122	byte&0x1	=1		PAL
>122	byte&0x1	=0		NTSC

# Impulse tracker module (audio/x-it)
0	string		IMPM		Impulse Tracker module sound data -
>4	string		>\0		"%s"
>40	leshort		!0		compatible w/ITv%x
>42	leshort		!0		created w/ITv%x

# Imago Orpheus module (audio/x-imf)
60	string		IM10		Imago Orpheus module sound data -
>0	string		>\0		"%s"