[MPlayer-cvslog] CVS: main/libmpcodecs ve_lavc.c,1.111,1.112

D Richard Felker III dalias at aerifal.cx
Wed Mar 2 21:08:45 CET 2005


On Wed, Mar 02, 2005 at 08:28:45PM +0100, Guillaume Poirier CVS wrote:
> CVS change done by Guillaume Poirier CVS
> 
> Update of /cvsroot/mplayer/main/libmpcodecs
> In directory mail:/var2/tmp/cvs-serv21224/libmpcodecs
> 
> Modified Files:
> 	ve_lavc.c 
> Log Message:
> 35% faster turbo mode with 0.01dB drop. Based Loren Merritt's suggestions.
> Next step would be to make turbo mode accept a "quality" argument to control the
> speed vs quality tradeoff.

If you're experimenting with this, could you see what happens if you
encode pass1 by scaling way down (e.g. 1/2 width and height) with
vf_scale, and then encode pass2 at full size? i.e. does the psnr
significantly drop? It might be necessary to do some renormalization
of the data in the log file for such a hack to work, but I suspect if
done correctly it might, and of course it would make another 50%
speedup or something...

Rich




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