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

[Roger Pack]

On 12/12/12, Francois Visagie <francois.visagie at gmail.com> wrote:
>> -----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

You could update the wiki page :)
-r