[Ffmpeg-devel] Differences between mencoder and ffmpegwhenencoding using x264

Robert Swain robert.swain
Tue Feb 21 11:59:51 CET 2006

On Tuesday 21 February 2006 10:49, Erik Slagter wrote:
> On Tue, 2006-02-21 at 10:45 +0000, Robert Swain wrote:
> > I agree that usability is an issue but I think
> > the x264 interface is perfectly usable and atrociously documented and I
> > will look into a solution at some point. It probably won't be any time
> > soon though as I have coursework deadlines imminent and then a whole shed
> > load of exams. Yey for the final year of degrees. :)
> I volunteer to adjust x264enc.c so it largely mimics the interface of
> mencoder regarding default values, imho that would already matter a lot.

Because of the way defaults are handled and because of the sharing of 
parameters this isn't easily possible. You don't know whether an option has 
been set by the user or internally and so can't decide whether to set the 
parameter or not, which implies you have to always set it, which then leads 
to using default parameters that are suboptimal. Hence why I suggested 
continuing an earlier discussion about presets for each codec.

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