[mythtv-users] BBCHD interval of I-frames

[Brian Wood]

On Saturday 29 November 2008 10:16:57 belcampo wrote:
> I would like to transcode BBCHD stuff from satellite on 6 cores on 3
> machines. Therefore I need to know where, at how much time from the
> beginning the next I-frame is. MPEG2 has one every 12 frames, is this
> the same for h.264 in the MPEGTS-container or different ?
>
> Any help greatly appreciated.

MPEG2 *might* have an I frame every 12 frames, that is up to the encoder. It 
could theoretically have an I frame every frame, though that would not result 
in much compression.

Be careful about making assumptions about these things, there is no guarantee 
they will be constant.

-- 
beww
beww at beww.org