Reimar Döffinger <b...@reimardoeffinger.de> added the comment:

On Mon, Aug 09, 2010 at 01:04:34PM +0000, blindbunny wrote:
> Ah, cehoyos, could you elaborate? Are you saying that the command line I 
> posted
> does the right thing in not producing the result I want? If so, what do I need
> to change in the command so that both videos are scaled in the intended way?

Unfortunately I do not know the details, but I think there is always
only one filter "chain", if you encode to multiple files you must
explicitly split the data and pass the output of different scalers
to different streams.
I.e. you must specify a vf that results in something like this
input #0.0 --- scale size a --- output #0.0
            \
             - scale size b --- output #1.0

Don't ask me how to do that, I have no idea.
It should be in some documentation though...

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