[x264-devel] Re: QP related variables

[Måns Rullgård]

Laurent Aimar <fenrir at via.ecp.fr> writes:

>> Well, it doesn't seem to work all that well.  The sample at
>> http://mru.ath.cx/~mru/samples/x264-rc-1200.avi has some rather ugly
>> artefacts that showed up when I started adjusting the QP per MB.
>> Using CABAC gives different artefacts
>> (http://mru.ath.cx/~mru/samples/x264-rc-1200-cabac.avi).  These do not
>> look like typical blocking artefacts that would be expected from a
>> misbehaving rate control.
>  Yep, there was a bug I have just fixed. Now it seems to work well.

Yes, it seems to work with my rate control as well.

> Btw, I have added a check at the start of analyse that verifies that 
> abs(qp - last_qp) <= 12 and fixes qp if needed.

OK, though that shouldn't have been the problem with my RC a check
doesn't hurt.

-- 
Måns Rullgård
mru at mru.ath.cx

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