2 May 04:30
Free fixed point (integer) based Vorbis audio decoder coming soon
Nicolas Pitre <nico <at> cam.org>
2002-05-02 02:30:39 GMT
2002-05-02 02:30:39 GMT
This is to let everybody know that I've successfully converted the reference implementation Vorbis decoder to integer math. I'm able to play Vorbis streams with about 20% CPU usage on a 206MHz StrongARM (actually nice for a first shot). I'm also pondering the possibility, if allowed, to license the resulting code under the GPL. I know that Xiphophorus has a commercial implementation of such a lib, so if I have permission from them to license my work under the GPL it would preserve their revenue source at some point. My integer version is based on the understanding I could gather from some reverse engineering on the current reference implementation code. This is however prone to overflows and other errors as I can't check against a formal specification since it apparently doesn't exist yet. Still it seems to work for me so far. When I'm done with code cleaning I'll post the URL for everybody to enjoy. Nicolas --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request <at> xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
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