Reading from UDP, PyAv is blocked?

[SkytreeRom]

We read source file from UDP using av.open() function, and then decode each frame with container.decode(). It works well when UDP stream is stable. But when UDP stream stops, the program will get blocked at the decode line forever. Moreover, if we open a wrong UDP stream, the program will also get blocked.
Can someone give us some suggestions about this problem? THANKS!
P.S. We have thought about using python's decorator by setting a fixed time to terminate the blocked process, but it doesn't meet our need. We want dynamically terminate the blocked process, which input UDP stream has stopped.

[mikeboers]

You're opening with something like av.open('udp://foo')?

If you look at the FFmpeg docs there is a timeout option. Perhaps that could be set quite low. Maybe even zero.

I wonder if there is a way to nicely know how much data is has received.

[DFjackdaw]

We do use av.open('udp://foo') to connect a nonexistent udp address, it will get blocked.

We try av.open('udp://foo?timeout=0') , it seems not work . Still blocked. So is there another way to jump out? Or we just write the wrong codes?

And how about container.decode（）？When the sender stop udp stream, it blocked. Any option or parameter to terminate the blocked process？

[SkytreeRom]

THANKS! @mikeboers
We have fixed this problem with the latest version (0.4.1). Using a simple parameter timeout(e.g. 'udp://127.0.0.1:6666?timeout=2000'), PyAv will automatically handle all possible problems when you decode() or open().