[FFmpeg-devel] [RFC] AAC encoder optimizations

Loren Merritt lorenm
Sun Sep 14 14:19:23 CEST 2008

On Sat, 13 Sep 2008, Kostya wrote:

> Now it's ~30 time slower than realtime on Core2.

I understand that michael wants RD before heuristics, but what exactly are 
you doing that makes this 1000x slower than faac, libvorbis, lame, and 
3000x slower than ffac3?
Is this the first RDOed lossy audio codec anyone has ever written? 
Are you testing the tensor product of all possible choices while others do 
gradient descent? Is it just that unoptimized?

--Loren Merritt

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