[FFmpeg-devel] Float vs. fixed-point audio codecs
Tue May 18 21:37:01 CEST 2010
On Tue, May 18, 2010 at 08:08:25PM +0100, M?ns Rullg?rd wrote:
> Michael Niedermayer <michaelni at gmx.at> writes:
> > On Mon, May 17, 2010 at 09:57:25AM -0400, Ronald S. Bultje wrote:
> >> Hi,
> >> On Mon, May 17, 2010 at 9:52 AM, Michael Niedermayer <michaelni at gmx.at> wrote:
> >> > 3 AVCodecs
> >> > mp3
> >> > mp3float
> >> > mp3fixp
> >> >
> >> > can very easily achive this, mp3 would just pass calls through to whatever
> >> > it determined to be faster.
> >> > no flag is needed for this, also it can easily be extended to handle external
> >> > decoders
> >> I think this is a good idea, also because speed will differ per codec.
> >> Usually it's not as simple as "float" vs. "fixp".
> > any objections from anyone?
> > note, this can be used together with some cpuflag set at runtime that
> > indicates fpu speed, though iam suspecting later being overkill.
> > if no objections, do we have a volunteer to implement this?
> Is a static build-time default acceptable? How about adding a
> HAVE_FAST_FLOAT setting and choosing based on that?
both ok (with the 3 AVCodecs (some possibly disabled))
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
I know you won't believe me, but the highest form of Human Excellence is
to question oneself and others. -- Socrates
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