[Ffmpeg-devel] changing frame rate and bit rate after opening codec

[Michael Niedermayer]

Hi

On Sun, Aug 13, 2006 at 12:56:56AM +0000, leon z wrote:
> Hi all,
> 
> a quick question on Lavc - if I need to modulate frame rate (or bit rate) 
> of some codec after I have already opened it - is it possible without say 
> closing and reopening the codec? If it is possible - is there anything more 
> to it than setting the relevant structure variables?

you can change the timestamps of the frames and you can change the quantizer
which will do what you want, there is no such thing as a framerate there is
just a time base and that cannot be chaged within a stream, not even with
reopening the codec (ok you can probably change it but the file would be
broken)

[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

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