[FFmpeg-soc] AAC LTP and SSR

Mike Melanson mike at multimedia.cx
Mon Jan 28 19:05:29 CET 2008


Andreas Öman wrote:
> Hi (Michael in particular)
> 
> I just wanna have some discussion around the future of the LTP and SSR 
> tools in the AAC decoder.
> 
> Neither of these seem to be of much use today and nobody is willing to
> finish nor maintain them for lavc.
> 
> I see some options of how to proceed.
> 
> 1) Keep them in lavc, without knowing if they work or not.
> 
> 2) Keep them in lavc, but #if 0-ed
> 
> 3) Remove them when merging into lavc
> 
> 4) Remove them from the soc-repo (but of course, history
> will be around, should anyone want to revive them)
> 
> I think both 2) and, in particular 1) will make the review
> harder for Michael == it takes longer time to finish this.
> 
> I would prefer 4) just to make it easier to work with it in
> the soc-repo as well but I'm fine with 3) and maybe 2) too.
> 
> Opinions?

I like #2. Do you know of any AAC samples that use the LTP and SSR
modes? I have been looking at the nearly 600 samples in the AAC
conformance suite but I don't know how to feed them into FFmpeg yet.

-- 
	-Mike Melanson



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