[theora] Do FPS affect bitstream?

Ralph Giles giles at thaumas.net
Mon Feb 7 07:56:06 PST 2011

On 7 February 2011 02:03, Andreas Engel <andreas.engel at bravis.eu> wrote:

> does the frame rate in th_info have any actual effect on the resulting
> bitstream? So for example do I get different results when encoding the
> same video 2000kbit/s at 30fps or 1000kbit/s at 15fps?

Currently libtheoraenc doesn't take the framerate into account when
making encoding decisions, so I'd expect that to be true up to
rounding error. Note that if you're comparing the streams, the header
packet will be difference, since it signals the playback rate to the


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