[MPlayer-dev-eng] comprehensive lavcopts test - in progress.

Roman Gaufman hackeron at dsl.pipex.com
Mon Jun 14 19:19:01 CEST 2004


Well, this is the suggestions I want. So you say *cmp depends on qpel and mv0 
to work and doesnt work without it? if so, sure, I'll add mv0 and qpel to 
more cmp tests.

On Monday 14 June 2004 14:59, Romain Dolbeau wrote:
> Roman Gaufman wrote:
> > So what we end up is: 99 lavcopts
> > 			       3 preopts for each lavcopt
> > 			       4 files (2 pass each)
> > 			       2 vbitrate settings (900kbit ad 1600kbit)
> > 				= 2376 tests
> >
> > Not too many, but seems quite comprehensive. Just to explain in words, 99
> > lavcopts will be tested with 3 preopts for EACH lavcopt. Those 297 tests
> > will be tested for 4 files with 2 different video bitrate settings (once
> > with 900kbit and once with 1600kbit), this makes a total of 2376 tests.
> >
> > cmd="mencoder %s %s -nosound -ovc lavc -lavcopts
> > vcodec=mpeg4:vbitrate=%s:psnr:autoaspect:vb_strategy=1:vratetol=32000:vpa
> >ss=%s: %s -o videoout/%s-%s-%s'             % (x,z,y,i+1,opt,n,x,y)"
>
> I'm missing something here. You're only going to test one option
> at a time ? In that case, I believe results won't mean much,
> as in many cases one option may change the usefullness of another.
> For instance, in my experiment, the order of quality for
> *cmp is 6>2>3 w/o qpel and mv0, but 3>2>6 w/ qpel and mv0.
> So testing those 3 separately won't make sense.




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