How to publish rtsp stream as ros2 topic using image_publisher?

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According to https://discourse.ros.org/t/ros-2-vid... I should be able to just call ros2 run image_publisher image_publisher_node rtsp://192.168.254.151/live_stream and the rtsp stream should be published as a ros2 topic. I can view the rtsp stream using vlc just fine, but when trying above command I get following error after a while:

[h264 @ 0x5639cdf9f600] mb_type 58 in P slice too large at 81 36 
[h264 @ 0x5639cdf9f600] error while decoding MB 81 36

and sometimes the error is:

[h264 @ 0x5651197324c0] cbp too large (111) at 1 59
[h264 @ 0x5651197324c0] error while decoding MB 1 59

I built image_publisher and cv_bridge from source using the ros2 branch and I tried with the default opencv version 4.2.0 and now also with source built opencv version 4.5.1 hoping that it might be fixed in a newer version, but I still receive the same error. Any idea how I can fix that error?