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gst-launch-1.0 v4l2src device=/dev/video50 num-buffers=150 ! image/jpeg,width=1280,height=720 ! filesink location=usb_stream.mjpg
ffprobe usb_stream.mjpg
# Тест конвертации в NV12
gst-launch-1.0 filesrc location=usb_stream.mjpg ! jpegparse ! v4l2jpegdec ! v4l2convert ! "video/x-raw,format=NV12" ! waylandsink

# Тест конвертации в BGR
gst-launch-1.0 filesrc location=usb_stream.mjpg ! jpegparse ! v4l2jpegdec ! v4l2convert ! "video/x-raw,format=BGR" ! waylandsink
gst-launch-1.0 v4l2src device=/dev/video50 ! image/jpeg,width=1280,height=720 ! v4l2jpegdec ! v4l2convert ! "video/x-raw,format=BGR" ! waylandsink