[Vorbis] splitting vorbis files

[James M. Rotenberry]

Greetings

The Unix application 'wavsilence' is a program that takes a WAV file with
gaps of silence and creates smaller WAV files, containing the data between
the gaps. ( http://danplanet.com/wav/ )

Is there a similar program for ogg vorbis?

How difficult would it be to write such a program?
---------------------------------------------------------------------------
The usage information, as displayed by 'wavsilence -h':

| wavsilence v0.40 - Dan Smith (dsmith at danplanet.com)
| Usage: wavsilence <options>
| Options:
|   -g <gap>       Minimum gap (in seconds) to be considered silence
|   -t <threshold> Volume (in % of Max) to be considered silence
|   -v             Verbose mode (specify multiple times to increase verbosity)
|   -I             Print input WAV information
|   -e <cmd>       Execute <cmd> when each piece is finished, with the filename
|                  as the last argument
|   -r             Remove the WAV file after <cmd> (only valid with -e)
|   -p             Display progress and statistics during operation
|   -i <file>      Read from <file> instead of stdin
|   -n <name>      Name output files <name>N
|   -l <file>      Log summary information in <file>
|   -b <num>       Buffer input by <num> samples (1 is default; try 16)
|   -P <cmd>       Pipe output of each segment to <cmd>
|   -m <seconds>   Minimum track length (in seconds)
|   -M <minutes>   Minimum track length (in minutes)
|   -s             Skip silence (remove the silence between pieces)
|   -c <num>       Counter-start. With this option you can set the initial
|                  value of the file-number-counter.
|   -h             Display this message
| Operation:
|   WAV file is read via stdin, split at points of silence into files
|   named "piece-N.wav" (unless user specified)

An example invocation is:

  % ./wavsilence -g 2 -t 4 -b 64 -l log.txt -p -i bigfile.wav

This will search for gaps of >=2s where the volume is <=4% of max.  64
samples will be read at a time (to increase performance).  Progress
will be displayed during execution and a summary will be left in the
'log.txt' file when finished.

Regards,
 JM Rotenberry
 rotenber at io.com