[Vorbis] ov_read, callbacks and 0 bytes read

[Andrew Lentvorski]

Ralph Giles wrote:
> libogg (and the libogg2 implementation compiled into Tremor)

Arggggh.  I wish I had seen this earlier.  You know, labelling things as 
ogg2 inside Tremor might give us poor slobs hacking on it a clue as to 
what is going on.

I just spent the last 8 hours slicing off the ogg implementation and 
synching it with the libogg trunk and the libvorbis trunk of vorbisfile 
(lots of inline accessors to isolate the data structures).  Now I'm 
going to have to figure out whether the start from the sliced version or 
to revert to beginning and pull forward.  <grumble>

At this point, decode is verified to work.  ivorbisfile_example.c, 
decoder_example.c and seeking_example.c compile and work.

Seeking initially works but fails starting at raw position 3168(???).

This might be barely good enough for my use.  I may just punt.

If folks want a changeset, just tell me the command to feed to svn and 
I'll drop one.  I'm a mercurial user, so you'll have to to be explicit 
about svn commands I would have to run.

-a