[Ffmpeg-devel] ffmpeg build fixes

Diego Biurrun diego
Sun Apr 1 00:06:56 CEST 2007


On Sat, Mar 31, 2007 at 09:41:17PM +0200, Michael Niedermayer wrote:
> 
> On Sat, Mar 31, 2007 at 07:43:04PM +0200, Diego Biurrun wrote:
> > On Tue, Mar 27, 2007 at 11:46:28AM +0200, Diego Biurrun wrote:
> > > On Tue, Mar 27, 2007 at 11:44:09AM +0200, Diego Biurrun wrote:
> > > > On Wed, Mar 21, 2007 at 07:28:23PM +0100, Stanislav Brabec wrote:
> > > > > 
> > > > > ffmpeg-system-amr.patch: Changes the code to build AMR support with
> > > > > system amr libraries from http://www.penguin.cz/~utx/amr
> > > > 
> > > > I'll apply your patch later today or tomorrow.
> > > > 
> > > > What about doing the same for the fixed-point version of amr-nb?  So far
> > > > you've only done the floating-point variants.
> > > 
> > > And maybe a variant with IF2 defined.
> > 
> > Hmm, IIUC once this patch gets applied we will not have support for the
> > fixed-point variant of amr-nb any longer.  Is this considered a problem?
> 
> RTFS :) that is the fixed point amr code, i faintly remember that some
> fixed point reference implementation just used hardcoded float emulation
> or so, dunno if that was amr, if its fake fixed its useless as it wont
> be faster than float with emulation on no FPU systems
> if OTOH its proper fixed point code it will be faster and we shouldnt
> drop support for it

It's just a matter of somebody packaging the fixed-point version, that
would be the ideal solution.  Stanislav?

Diego




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