sync=false does not seem to work in appsink

Kazanian knoelker at onexip.com
Tue Sep 22 11:54:39 UTC 2020


Hi,

my pipeline looks like this:
filesrc ! h264parse ! vpudec ! appsink sync=false

The loaded h264-file has 50 fps. In the appsink callback function, I
measured the framerate and the result is always 30 fps whether sync is true
or false. But sync=false should result in processing the frames as fast as
possible. Why is this not working with appsink?

If I replace appsink by glimagesink sync=false, then I achieve 56 fps. So
here it makes a difference but not with appsink.



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