I don't have good stats, but I'm sure it's much longer than all current test 
sequences, which tend to be only a few seconds due to uncompressed video size 
constraints. 

It is important to understand intra efficiency during a stream switch, 
recovery, join, random access, etc. Perhaps we can just test All-Intra configs 
as a separate data point for this rather than mixing periodic intra. 

Mo



On Mar 15, 2015, at 10:07 AM, Timothy B. Terriberry <[email protected]> wrote:

Mo Zanaty (mzanaty) wrote:
> Another reason for testing with periodic intra is the recent rise in RTP 
> mixers which switch rather than transcode media. Setting the intra interval 
> to the average active speaker switching time gives a good estimate of 
> real-world codec efficiency in these topologies.

Do either you or Harald have some statistics with which to estimate that time?

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