[Vorbis] ov_read, callbacks and 0 bytes read

[illiminable]

Here's a really minimal decoder, that shows using the low level vorbis 
api. I think it's easier to follow than decoder_example. Maybe this will 
make it easier to follow.

http://svn.xiph.org/trunk/oggdsf/src/lib/codecs/vorbis/libs/libOOVorbis/VorbisDecoder.cpp
http://svn.xiph.org/trunk/oggdsf/src/lib/codecs/vorbis/libs/libOOVorbis/VorbisDecoder.h

Same for tremor (which is a bit different because it uses libogg2)
http://svn.xiph.org/trunk/oggdsf/src/lib/codecs/vorbis/libs/libOOTremor/TremorDecoder.h
http://svn.xiph.org/trunk/oggdsf/src/lib/codecs/vorbis/libs/libOOTremor/TremorDecoder.cpp

Zen.

Andrew Lentvorski wrote:
> Ralph Giles wrote:
>> At least, that's my guess. A whole lot more than decoder_example.c 
>> should have not compiled if you don't have libogg available. 
>
> Untangling this code is murder.
>
> vorbis/tremor depends on so many internal details of libogg that I'm 
> going nuts trying to untangle the two.  In addition, the vorbis and 
> tremor codebases have diverged from bug fixes as well as the 
> difference in functionality focus.
>
> Does anybody have regression tests for libvorbis/libogg/libtremor? 
> Untangling this would be a lot easier if I could run a test against 
> each change to ensure that I haven't hosed something.
>
> Thanks,
> -a
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