[MPlayer-dev-eng] Let af_lavcresample use float point sample format.

[Michael Niedermayer]

Hi

On Sat, Apr 20, 2024 at 01:04:00AM +0200, Alexander Strasser wrote:
> Hi Ivan,
> 
> On 2024-04-15 21:40 +0300, Ivan Kalvachev wrote:
> > While fixing ch_layout in af_lavcresample, I've noticed that libaf
> > inserts two format change filters - one before lavcresample to do
> > float->s16le and one after to do s16le->float. Since swresample
> > handles float point sample format natively, it should be both faster
> > and better quality to use it.
> >
> > If float point sample format is requested by libaf at initialization,
> > use swresample float point sample format for the conversion.
> > Adjust internal buffer size calculations to use a variable (bps).
> > Store the used format in the filter context structure to avoid
> > unnecessary reinitialization.
> 
> Cannot comment much on the inter workings of libaf and libswr, but
> the code looks good to me.

I cant comment on libaf either but if it works it should be correct
its quite unlikely to be wrong and working

thx

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Asymptotically faster algorithms should always be preferred if you have
asymptotical amounts of data
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