Hi Florin,
> I am under the impression that RC3 has poorer control over the max
> bitrate as reported later by mplex. It's like it either can't get close
> enough to the specified maximum (for -b 8000 -q 8 it only gets to 7400
> for one file, and lower, sometimes much lower, for all other files) or
> it gets too high and overshoots if I start pushing -q just a little bit
> (for -b 8000 -q 7 it's already 9200 on one file, 8800..8900 on several
> other files).
Yes, there's definately a bug in mpeg2enc rate control at the moment. It
probably relates to some tweaks recently added to improve the way the encoder
looks ahead to make good use of available buffer capacity to avoid
unnecessarily reducing quality for short spikes in picture content.
cheers,
Andrew
--
Dr Andrew Stevens
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Germany
Home: +49 8121 883672
Mobile: +49 173 5397553
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