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Press CTRL+C to end recording.
If you have the '''WARNING: erroneous pipeline: no element "v4l2src"''' error, please run the following command:
sudo apt-get install gstreamer1.0-plugins-good
WARNING: erroneous pipeline: no element "h264parse"
sudo apt-get install gstreamer1.0-plugins-bad
WARNING: erroneous pipeline: no element "alsasrc"
sudo apt-get install gstreamer1.0-alsa
PS: We recommend that you modify the above '''<span style="color:red;">framerate</span>''' parameter to the actual frame rate of your HDMI signal, the actual frame rate value is from the result of ''''v4l2-ctl --query-dv-timings'''' command.