V4L2: Is it possible implement video composite with V4L2?

[Nicolas Dufresne]

Le jeudi 03 septembre 2015 à 14:07 +0000, Bing Song a écrit :
> How driver do sync? Suppose driver will sync V4L2 buffer time stamp
> with system time. V4L2 M2M device can copy time stamp from sink to
> source.

M2M driver don't sync. They copy over the TS from input to output, and
run as fast as possible.

> 
> Is it possible to write one element based on video aggregator to do
> video composite based on V4L2?

It's software, everything is possible ;-P

> 
> Do you know any driver already implement this?

Ask linux-media@ mailing list maybe ? For kernel side stuff, this is
the wrong list.

Nicolas
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