[FFmpeg-user] After reading x264 Encoding Guide, some questions

[Francois Visagie]

> -----Original Message-----
> From: Francois Visagie [mailto:francois.visagie at gmail.com]
> Sent: 08 December 2012 08:47
> To: 'FFmpeg user questions'
> Subject: RE: [FFmpeg-user] After reading x264 Encoding Guide, some
> questions
> 
> Many thanks for the responses so far.
> 
> > -----Original Message-----
> > From: Francois Visagie [mailto:francois.visagie at gmail.com]
> > Sent: 07 December 2012 14:03
> > To: ffmpeg-user at ffmpeg.org
> > Subject: [FFmpeg-user] After reading x264 Encoding Guide, some
> questions
> >
> > Hi All,
> >
> > First of all, a great thank you to the author/s of this guide. It's
short but still
> > thorough and very helpful.
> >
> > I have some questions remaining that don't seem to be covered in the
> > documentation available that I would like to clear up.
> >
> > 1. The guide refers to the -crf and -qp options but neither is covered
in
> > http://www.ffmpeg.org/ffmpeg.html. What is their relationship to each
> > other and when is it advisable to use which? How do these two relate to
> the
> > q=nn.n printed after encodes?
> 
> Anybody in the ffmpeg community willing to clarify what seems to be the
> basis of H.264 quality control? ;-)

I also found this:
http://mewiki.project357.com/wiki/X264_Settings#Ratecontrol
http://git.videolan.org/?p=x264.git;a=blob_plain;f=doc/ratecontrol.txt;hb=HE
AD