[MPlayer-dev-eng] [RFC] preliminary x264 encoding help text

[Alexander Strasser]

Loren Merritt wrote:
> On Sun, 10 Apr 2005, The Wanderer wrote:
> >Jeff Clagg wrote:
> >
> >>Before continuing, I should explain that I'm using only one quality
> >>metric: global PSNR. This is reported as the last PSNR number reported
> >>when you include the "psnr" option in x264encopts. Any time I make a
> >>claim about PSNR, one of the assumptions behind the claim is that equal
> >>bitrates are used.
> >
> >I'm not sure it's worth explaining it here, but I'll note (as I've done
> >recently) that not everyone trying to do encoding knows what PSNR stands
> >for; especially if this guide is in any way aimed at encoding newbies,
> >it might be good to expand the term in parentheses at the first usage.
> 
> I disagree. Either you know what PSNR is, or it requires a lengthy 
> explanation, or you just hand-wave it as "quality". Knowing what it
> stands for doesn't help unless you're going to explain it.

  As PSNR is nothing special to a particular codec, we might want to
explain it and some similar terms in one playe somewhere else.

  I know it is questionable if this belongs into mplayer docs, but it
is an option.

  Alex (beastd)