[Ffmpeg-devel] AAC decoder
Wed Mar 22 07:49:19 CET 2006
On Tue, Mar 21, 2006 at 11:48:33AM -0800, Mike Melanson wrote:
> Oded Shimon wrote:
> >Well, for anyone interested. Not even AAC LC is ready, but in general
> >files encoded with faac are playable and enjoyable...
> >Some ego boosting:
> >me: BENCHMARKs: VC: 0.000s VO: 0.000s A: 1.627s Sys: 0.147s =
> >faad: BENCHMARKs: VC: 0.000s VO: 0.000s A: 1.933s Sys: 0.209s =
> >me: BENCHMARKs: VC: 0.000s VO: 0.000s A: 1.054s Sys: 0.098s =
> >faad: BENCHMARKs: VC: 0.000s VO: 0.000s A: 1.294s Sys: 0.103s =
> >However, I expect it to get slower as I implement more features. AAC was
> >really designed in the most anti-optimization way possible.
> >Obviously patch is not at all for inclusion, it's only for those
> >interested, however I do welcome comments on how I can clean it up (and
> >possibly further optimize). Mostly this mail is just a cheap trick for my
> >to keep a backup of the last working version of my decoder. :)
> One question: Is it really necessary to include tables for sine and
> KBD values? I know the sine table can easily be generated at runtime. The
> same probably applies for the KBD values.
Not necessary at all. I was just lazy, and I took example from how vorbis.h
.. Has anyone tried the actual codec? Can you play anything?
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