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DAGRAB(1)			    dagrab			     DAGRAB(1)

NAME
       dagrab -	dumps digital audio from cdrom

SYNOPSIS
       dagrab [	-h ] [ -i ] [ -d device	] [ -a ] [ -v ]	[ -f file ] [ -o over-
       lap ] [ -n sectors ] [ -k key length ] [	-r retries ] [ -t offset  ]  [
       -m mode ] [ -e command ]	[ -s ] [ -p ] [	-C ] [ -S ] [ -N ] [ -H	host ]
       [ -P port ] [ -D	dir ]

DESCRIPTION
       dagrab is a program for reading audio tracks from a  cdrom  drive  into
       RIFF WAVE (.wav)	sound files.

       It  should  work	 with any cdrom	drive, provided	that digital audio ex-
       traction	is supported from both the drive and its linux driver.

       For an index of cdrom drives that  support  digital  audio  extraction,
       take a look at these URLs:

	  http://www.tardis.ed.ac.uk/~psyche/pc/cdrom/CDDA.html

       and

	  http://www.anime.net/~goemon/linux-cd/cdda-list.html

OPTIONS
       -h
	  -h will print	the help screen

       -i
	  -i  prints  out  the	track  list from the current cd. This includes
	  track	number,	lba start and length, type of track, its time duration
	  and needed length when dumped	to disk.

       -d device
	  -d  device sets the cdrom device name. Default is /dev/cdrom (if you
	  haven't done already:	symlinking of your cdrom device	to  /dev/cdrom
	  is ``standard'')

       -a
	  -a dumps all tracks and ignores the optional track list.

       -v
	  -v  enables  the  verbose mode of dagrab. It will print warning mes-
	  sages	to stderr while	delivering some	useful information to  stdout.
	  E.g.	the rest time and speed	factor will be displayed while dumping
	  a track.

       -f file
	  -f file sets the output name for dumping tracks. If the file exists,
	  it  will  be	overwritten.   In  non CDDB naming mode	(-N option not
	  used), you can embed %02d in the string which	will be	replaced  with
	  the track number (counting from 1).  Default is "track%02d.wav".  In
	  CDDB naming mode (-N option) you may also embed variables  (see  be-
	  low).	 In this case the default value	is "@num-@trk.wav".

       -o overlap
	  -o overlap sets the number of	sectors	which are used for jitter cor-
	  rection.  Shouldn't be too high or you  will	get  "jumps"  in  your
	  dump.	 The default value is 3.

       -n sectors
	  -n sectors will be read per request from the cdrom driver. (Read the
	  note on IDE drives below)

       -k key length
	  -k key length	is the number of keys which must be equal for a	 match
	  in jitter correction.	Default	value is 12.

       -r retries
	  -r  retries sets the number of times to reread sectors before	a jit-
	  ter error is given. Default is 40 times.

       -t offset
	  -t offset sets the maximum offset to search for  jitter  correction.
	  Default is 12.

       -m mode
	  -t  mode gives the standard mode for files. Also existing files will
	  be chmod to this value. Default is 0660.

       -e command
	  -e command will be executed after dumping a track. This can be  used
	  to  automize	converting the dumped data, for	example. You can embed
	  %s in	the command which will be substituted with the filename	of the
	  track	file.  In CDDB mode you	may also embed variables (see below).

       -s
	  -s  enables  checking	 for  free space before	dumping	the track to a
	  file.	 However, if the file exists before, it	 will  be  overwritten
	  (read: deleted) and dagrab skips to the next track.

       -p
	  -p  enables  converting the stereo audio data	to mono.  This doesn't
	  select a special channel but the mixed  information  of  both	 audio
	  channels.

       -C
	  -C enables the use of	cddbp protocol to retrieve disk	info.

       -S
	  -S  causes the program to look for cddb data in remote server	and to
	  save it in the local database, wich for default is  located  in  the
	  xmcd library directory.Implies -C

       -N
	  -N  gives to each track the name reported by cddb; overrides -f.  It
	  does not enable cddbp.

       -H host
	  -H host is the remote	cddb server, defaults to cddb.like.it.

       -P port
	  -P port is the port to connect to on the remote server, defaults  to
	  888.

       -D dir
	  -D  dir  sets	 the base directory of the local cddb database;	it de-
	  faults to $XMCD_LIBDIR/cddb or  /usr/lib/X11/xmcd/cddb  if  not  de-
	  fined.

Variables
       When  CDDB  mode	 is enabled, you can use variables bound to track data
       both for	the track name and the filter.
       case use	lowcase	names for "filename friendly"  filtered	 values	 (like
       "ME-I_DON_T"  insread  of  "ME/I	DON'T")	upcase names returns unchanged
       values (shell escaped when used in a filter command).
       Here is a list of the available variables:
       @TRK Track name
       @FDS Full disk name (usually author/title)
       @AUT Disk author	(guessed, supposes that	ful disk name is author/title)
       @DIS Disk name (guessed,	as above)
       @NUM Track number

NOTES
       Gaining more speed with IDE drives
	  Edit /usr/src/linux/drivers/block/ide-cd.c and change	the value  de-
	  fined	 for  CDROM_NBLOCKS_BUFFER near	line 202 to a higher value.  A
	  value	of 32 works for	me with	a  Toshiba  XM-6201B  (256KB  buffer).
	  After	 installing  the new kernel, you may use the -n	sectors	option
	  to tell dagrab to read more sectors at once.

       Compatibility
	  dagrab should	work with all drives supporting	digital	audio  extrac-
	  tion	(as  long  as  linux  kernel  drivers supports that too).  IDE
	  drives are alwais supported by kernel, but many doesn't support  au-
	  dio  extracton;SCSI  drives usually does, but	there isn't a standard
	  way to do it,	so often the kernel doesn't support that feature.   If
	  you  need  to	 extract  audio	 from  a  SCSI drive, you can try with
	  CDDA2WAV.

       dagrab uses the term ``MB'' for MByte (2^20 bytes ==  1024^2  bytes  ==
       1,048,576 bytes)

       Legal  note:  This program may not be used to circumvent	existing copy-
       rights.

HOMEPAGE
       http://web.tiscalinet.it:/marcellou/dagrab.html

BUGS
       Unknown currently.

       Please send bug reports (fixes are even more welcome) to	 Marcello  Ur-
       bani <murbani@libero.it>	or Sascha Schumann <sas@schell.de>

CREDITS
       Main author of dagrab is	Marcello Urbani	<murbani@libero.it>.  Patches,
       comments, bug reports etc are directed to him.

       Author of some dagrab  extensions  and  man  page  is  Sascha  Schumann
       <sas@schell.de>

dagrab				  24/06/1999			     DAGRAB(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | Variables | NOTES | HOMEPAGE | BUGS | CREDITS

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