[x264-devel] constant bitrate commands at 200kbps

Alex Jurkiewicz alex at bluebottle.net.au
Thu Sep 3 16:00:35 CEST 2009


2009/9/3 Dion Galbreath <DionG at viewcast.com>:
> f_rate_tolerance  is ratecontrol?? Set this to 0.1 ?
No. http://mewiki.project357.com/wiki/X264_Settings#ratetol

> i_qp_min  set to  15
>
> i_qp_max set to 20
>
> i_qp_step set to 2
These settings override the frame quantizer that ratecontrol would
otherwise use. Quite possibly the reason you see spikes.
http://mewiki.project357.com/wiki/X264_Settings#qpmin

Look at the VBV controls to encode CBR.

AJ


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