[MPlayer-users] Assembling with Frame Rate Changes and Other Changes

Nico Sabbi Nicola.Sabbi at poste.it
Thu Apr 24 09:53:44 CEST 2008

On Monday 21 April 2008 19:35:23 Craig Milo Rogers wrote:
> 	Suppose that I have frame sequences (JPEG or PNG) that I want
> to assemble into an MPEG, and I know that different sections have
> different parameters associated with them (frame rate certainly,
> perhaps resolytion, aspect ratio, color space?).  How do I assemble
> thes frames (and an autio track) together?

> 	One possibility is that I don't need to worry about this
> directly, and the DVD-building tool will glue these things together
> for me.  Can one simply cat MPEG files, of differing
> characteristics, together and then lay an audio stream against it? 
> Pointers to documentation would help shut me up :-). 
> Alternatively, perhaps an extension to mencoder is
> justified/required.
> 	Thanks.

it depends on how you want to use the output: if with
mplayer or other software players you won't have problems
(resolution, A/R and framerate changes are generally handled
correctly) but DVD players will surely complain or fail miserably

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