bakaid commented on a change in pull request #612: MINIFICPP-854: Capture RTSP
Frame
URL: https://github.com/apache/nifi-minifi-cpp/pull/612#discussion_r304438766
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File path: extensions/opencv/CaptureRTSPFrame.cpp
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@@ -73,6 +73,11 @@ void CaptureRTSPFrame::initialize() {
relationships.insert(Success);
relationships.insert(Failure);
setSupportedRelationships(std::move(relationships));
+ // By default in OpenCV, ffmpeg capture is hardcoded to use TCP and this is
a workaround
+ // also if UDP timeout, ffmpeg will retry with TCP
+ // Note:
+ // 1. OpenCV community are trying to find a better approach than setenv.
+ setenv("OPENCV_FFMPEG_CAPTURE_OPTIONS", "rtsp_transport;udp", 1);
Review comment:
@phrocker Yes, we have ended up with adding an ObjectFactoryInitializer for
the OpenCV component with @nghiaxlee, but in person, so we didn't follow up
here. That should work without problems for now.
Adding it to minifi.sh could be a good solution if there is a framework for
it like you mentioned, but I am not sure everyone uses minifi.sh at the moment
(I usually just start the binary).
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