[vorbis-dev] Dump utility

[Arnar Mar Hrafnkelsson]

I added wrappers and such to the oggpack_read* routines in libvorbis.
This is decoder_example being run on an ogg encoded file (which was
encoded using long blocks only).

$ vorbinfo < /u01/addi/vorbis/data/tt/34/128L/bass47_1.ogg > /dev/null

Bitstream is 2 channel, 44100Hz
Encoded by: Xiphophorus libVorbis I 20010225

Done.
counters:
 unknown[0]: 0
 unkbook[1]: 63793
 lpcdata[2]: 189360
 resdata[3]: 2544635
 infdata[4]: 5741
total: 2803529 bits

$ perl -wle 'print 8*-s shift' /u01/addi/vorbis/data/tt/34/128L/bass47_1.ogg 
2842792

$ perl -wle 'print 2842792/2803529'
1.01400484888867A

I've observed the files to be about 1.3 - 1.9 percent bigger than the bits
I count so I guess that is framing overhead.

Do this seem plausible to everyone?  If someone wants the code then email
for it.  It's horribly written and ugly as hell (since I don't know if any
routine is guaranteed to be called first all wrappers check if they are
the first one to be called).

-- Arnar.

On Mon, 16 Apr 2001, Arnar Mar Hrafnkelsson wrote:

> Is there any dump utility that exists for vorbis streams?
> 
> What I am intersted in is something that will do a break down like:
> 
> How many bits are used for encoding _each_ codebooks, how many bits are
> used for the residue, how much is used for the lpc coefficints.  A
> selective dump of the codebooks themselves would be nice too of course.
> 
> I'm wondering if anyone has such a little dump utility.
> 
> 
> 	Addi
> 
> 
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