[FFmpeg-devel] [PATCH] Eliminate -dc option from ffmpeg.c options

Michael Niedermayer michaelni
Sat Aug 9 19:18:21 CEST 2008


On Sat, Aug 09, 2008 at 01:44:10PM +0200, Stefano Sabatini wrote:
> On date Saturday 2008-08-09 04:28:14 +0200, Michael Niedermayer encoded:
> > On Fri, Aug 08, 2008 at 02:48:57PM -0700, Baptiste Coudurier wrote:
> > > Hi,
> > > 
> > > Stefano Sabatini wrote:
> > > > Hi all,
> > > > 
> > > > this seems unnecessary since it may be set using AVOptions.
> > > > 
> > > > Also I honestly cannot understand the -8 logic, but it seems to me
> > > > plain wrong/misleading.
> > > > 
> > > 
> > > Not at all, everybody express MPEG-2 (at least) DC precision in bits, so
> > > you say 9/10/11 bits for dc 1/2/3.
> > > 
> > > This change command line usage and Im against it for now, some more
> > > advanced AVOption system like eval() possibility would be better I think.
> > 
> > hmm, i think having command line options and internal variables do very
> > different things could be confusing.
> > 
> > We could just make intra_dc_precision have 8,9,10,11 as value instead of
> > 1/2/3 this would IMHO be the cleanest solution but would have to be
> > done under #if VERSION with the next major version bump ...
> 
> Like this?

no

the parameter should take values in the range of 8..12 nor 0..4

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Thouse who are best at talking, realize last or never when they are wrong.
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