[MPlayer-users] Scrubbing an mpeg4 movie...

[D Richard Felker III]

On Wed, Feb 25, 2004 at 02:44:12AM -0500, Matthew W. Miller wrote:
> On Tue, Feb 24, 2004 at 06:09:32PM -0500, D Richard Felker III wrote:
> >On Tue, Feb 24, 2004 at 10:49:14PM +0000, Stephen Mollett wrote:
> >> On Monday 23 February 2004 15:47, Paul Simpson wrote:
> >> > Does anyone know any good settings/tips that will allow me to
> >> > createa an mpeg4 movie that can be scrubbed forwards/backwards than
> >> > the deafult settings allow?
> >> If you want _maximum_ scrubbability, you're best off using a format
> >> like MJPEG, where _every_ frame is a keyframe. ... For _improved_
> >> scrubbability, you could simply decrease the keyframe interval with
> >> the keyint=<x> libavcodec option.
> 
> Well, you could use keyint=1, making every frame a keyframe.  I don't
> recommend it.
> 
> DVDs and VCDs get O.K. video quality from equivalents to keyint=12 or 15
> or 18.  Perhaps you could set keyint to the same or close to the frame
> rate (typically 24, 25, or 30), which at least allows finer seeking than
> the default keyint=250.

And the bitrate will have to be twice as high for comparable quality...

Rich