[MEncoder-users] Flashvideo for YouTube using mencoder

[Phil Ehrens]

Reimar Döffinger wrote:
> On Tue, Feb 26, 2008 at 09:51:09PM -0500, Rich Felker wrote:
> > On Tue, Feb 26, 2008 at 10:26:09AM -0800, Phil Ehrens wrote:
> > > Geez. And here I thought I was explaining why P-frame size didn't
> > > matter. Oh well...
> > 
> > Did I accidentally target my comments at the wrong person?
> 
> I think so. But I fear he is involuntarily used to being targeted :-)

I think I got into trouble when I referred to the temporal
domain in general, not with reference to timestamps.

What I meant was that nobody experiences the presentation of
I/P frame encoded material as inherently degraded, because
humans cannot distinguish between the same frame being
presented twice and two frames that were recorded at different
times with identical content.

So there is no perceptual difference between a displayed
I-frame and the null P-frame that follows. This is a
wonderful result, because the average bitrate is halved
without affecting image quality. The huge potential win
from dynamic GOP size follows from this.

Which leads me to a question. What dynamic GOP capabilities
exist in codecs that are usable in mencoder?