Issue with AppSink

Tim Müller tim at
Thu Nov 5 11:02:57 UTC 2020

On Wed, 2020-11-04 at 22:53 -0500, Jaskarn Kalsi wrote:


> We have a pipeline that worked well on ubuntu 18 with gstreamer 1.15
> We have upgraded Ubuntu to 20.04.
> Now the same pipeline keeps filling up the queue before appsink if
> any cpu bound process is executed.
> It stops pushing frames.
> to the next pipeline which is an appsrc.
> callback kind of pauses, and after sometime frames start to populate
> again.
> decklink -> videoconvert -> queue -> appsink
> appsrc-> queue -> tee -> fakesink
> appsink has drop set to True.
> so queue behind it should not get overflowed.

Do you have a small self-contained test application that demonstrates
the problem?

Does it also happen with videotestsrc live=true instead of decklinksrc?


Tim Müller, Centricular Ltd -

More information about the gstreamer-devel mailing list