USB webcam (MJPEG) stream to YouTube.com (including sound)

[vecerapl]

I need advice on a script to create YouTube.com streaming (RTMP) at least in
HD 1920x1080 pixels at 25 fps. Preferably over GStreamer to be able to use
GPU hardware.
How can I do that?

*v4l2-ctl -d /dev/video0 --list-formats-ext*
Index       : 1
    Type        : Video Capture
    Pixel Format: 'MJPG' (compressed)
    Name        : Motion-JPEG
            Size: Discrete 3264x2448
                    Interval: Discrete 0.067s (15.000 fps)
            Size: Discrete 2592x1944
                    Interval: Discrete 0.067s (15.000 fps)
            Size: Discrete 2048x1536
                    Interval: Discrete 0.067s (15.000 fps)
            Size: Discrete 1920x1080
                    Interval: Discrete 0.040s (25.000 fps)
            Size: Discrete 1600x1200
                    Interval: Discrete 0.033s (30.000 fps)



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