[vorbis] Windows XP and MP3

[Michael Smith]

>> It's useful to note that there are at least two (that I know of) games
>> currently available (i.e. actual commercial releases) that use vorbis for
>> their in-game audio.
>> 
>
>I'm working on one now where I can have up to six audio
>streams going at the same time[1], along with ov_seek_pcm()s
>happening in each channel.
>
>I probably have to come up with a work-around for the seek
>slowness, but the basic decoder is still very slow for a
>game. FWIW, Winamp currently registers aout 5% CPU usage
>with .ogg files, and 1% with .mp3 files.

Seek time is a known issue. There's a fix for this pending. It's not
difficult to do seeking much faster than vorbisfile does it (libvorbis is
quite efficient here, but vorbisfile does not do things optimally). Your
winamp measurements are definately way off - you might see double cpu
usage, but 5 times as much simply isn't possible (that's what beta1 was like!)

>Is speed being worked on for the final release, or is
>Version 1.0 just going to be the beta 4 code but with
>the bugs fixed.

There will be quite a few new features in version 1.0, and optimisation
work is ongoing - it should be significantly faster by then.

Michael

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