[FFmpeg-devel] soundtouch filter?

[Pavel Koshevoy]

On 4/29/12 5:02 AM, Reimar Döffinger wrote:
> On Sat, Apr 28, 2012 at 09:53:19PM -0600, Pavel Koshevoy wrote:
>> I am thinking of using the soundtouch library for actual audio
>> processing, so the filter would be a wrapper for soundtouch.
> Generally we aren't keen on stuff depending on external libs.
> Amongst lots of reasons, the fact that we will not be able to
> add automated tests for it is quite significant.
> Also adding a wrapper that is in itself probably a few hundred lines
> for something that can be implemented directly with about as much
> code seems a bit silly.
> If GPL is good enough, you could port MPlayer's scaletempo filter,
> it is under 500 lines including all the interface code with MPlayer...
>

SoundTouch is LGPL.  However, I am fine with GPL.  What existing 
avfilter code is a good reference for me to use for scaletempo port?

Thank you,
     Pavel.