[Mplayer-dvb] picture quality of mpeg4 playback

Arpi arpi at thot.banki.hu
Thu Oct 11 22:34:49 CEST 2001


Hi,

> > it's a known bug. it seems to mpeg1 encoder adds this artifacts (maybe
> some
> > overflow) at very low qscale values.
> 
> Is there any workaround at the moment ? Afaik higher qscale values would
> result in more mpeg "noise" because of the higher compression. But maybe we
> can find a way to prevent the qscale to get too low ?
> Or do you know if the developers of ffmepg already working on this ?
> 
I told it to Gerard, but he is verybusy nowdays :(

you can increase qscale at vo_mpegpes.c:162:
    codec_context.quality=1; // quality!  1..31  (1=best,slowest)

2 or 3 should be ok (no visible quality loss)


A'rpi / Astral & ESP-team

--
mailto:arpi at thot.banki.hu
http://esp-team.scene.hu



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