[MEncoder-users] Flashvideo for YouTube using mencoder

[Rich Felker]

On Fri, Feb 22, 2008 at 04:47:37PM +0100, Ben wrote:
> On Fri, Feb 22, 2008 at 3:03 PM, Rich Felker <dalias at aerifal.cx> wrote:
> > On Fri, Feb 22, 2008 at 08:10:27AM +0100, Ben wrote:
> >  > On Fri, Feb 22, 2008 at 6:58 AM, RC <cooleyr at gmail.com> wrote:
> >  >
> >  > >  > keyint=148:
> >  > >
> >  > >  The larger the keyint, the better the quality (potentially).
> >  >
> >  > Hmm.. isn't the keyframe the one frame saved in maximum quality?
> >
> >  No, it's one frame saved independently of previous frames to
> >  facilitate seeking. If keyint is too large it reduces the number of
> >  possible seek destinations but always improves quality.
> 
> That's actually contradictory to reality. If I reduce the number of
> keyframes, the bitrate of the video lowers, meaning quality
> requirement is lower. I don't think it improves quality, ever.

If you lock the quality, then increasing keyint lowers the bitrate.
If you lock the bitrate, then increasing keyint raised the quality.

Wikipedia is not the source to trust on these things..

Rich