[FFmpeg-devel] [PATCH] lavc/videotoolbox: Consistent fallback to external software encoding/decoding.

[wm4]

On Mon, 21 Mar 2016 11:49:22 +0100
Thilo Borgmann <thilo.borgmann at mail.de> wrote:

> Am 21.03.16 um 11:41 schrieb wm4:
> > On Mon, 21 Mar 2016 11:34:11 +0100
> > Thilo Borgmann <thilo.borgmann at mail.de> wrote:
> >   
> >> Am 21.03.16 um 08:23 schrieb wm4:  
> >>> On Sun, 20 Mar 2016 16:49:18 +0100
> >>> Thilo Borgmann <thilo.borgmann at mail.de> wrote:
> >>>     
> >>>> Hi,
> >>>>
> >>>> trying to handle software fallback more consistently for videotoolbox and
> >>>> probably other hardware accelerations.
> >>>>
> >>>> Addresses ticket #5352 where software fallback is demanded which has been
> >>>> removed on purpose before. With this patch the user can configure the desired
> >>>> behaviour.
> >>>>
> >>>> -Thilo    
> >>>
> >>> Please explain how a hwaccel that uses no hardware decoding makes any
> >>> sense at all.    
> >>
> >> Checking compliance, comparing output/performance, work around a possible bug in
> >> an alternative decoder... of course it is no alternative if you need/want the
> >> benefits of hardware decoding but there are use cases that come to mind.
> >> And maybe you don't have an alternative decoder at hand...  
> > 
> > But it's integrated as hwaccel, so most of these arguments don't make
> > too much sense to me. Please don't touch the hwaccel thing, and wait
> > until there's a separate videotolbox decoder.  
> 
> Indeed, if this decoder is actually coming it voids the need for this change.
> 
> Have I missed it on -devel already?

No, but it will exist. AFAIK Rodger Combs wanted to look into this. (If
nobody else does, I'll do it.)