[Ffmpeg-devel] AAC decoder

[Mike Melanson]

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 =    1.774s
> faad: BENCHMARKs: VC:   0.000s VO:   0.000s A:   1.933s Sys:   0.209s =    2.142s
> me:   BENCHMARKs: VC:   0.000s VO:   0.000s A:   1.054s Sys:   0.098s =    1.152s
> faad: BENCHMARKs: VC:   0.000s VO:   0.000s A:   1.294s Sys:   0.103s =    1.398s
> 
> 
> 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.

-- 
	-Mike Melanson