Segmentation fault on rtmp stream

[marlon-br]

Hey, I am trying to use PyAV to open (listen for) rtmp stream. My code is:

import av
print("opening video...")
container = av.open("rtmp://127.0.0.1:12345", options={'listen': '1'})
print("running test")
for packet in container.demux():
    for frame in packet.decode():
        print("frame", frame)

and I stream to it with
ffmpeg -r 30 -f lavfi -i testsrc -vf scale=1280:960 -vcodec libx264 -profile:v baseline -pix_fmt yuv420p -f flv rtmp://127.0.0.1:12345
or OBS studio, does not matter. I always get:

opening video...
Unexpected stream , expecting 127.0.0.1:12345
Unexpected stream , expecting 127.0.0.1:12345
Segmentation fault

At the same time when I use ffmpeg to open (listen for) stream with
ffmpeg -listen 1 -i rtmp:/127.0.0.1:12345 1.mp4 no errors happen, everything goes ok. ffmpeg is able to receive stream and save to 1,mp4