Device found:

        name  : mmal service 16.1
        class : Video/Source
        caps  : video/x-raw, format=(string)YUY2, width=(int)[ 32, 4056, 2 ], height=(int)[ 32, 3040, 2 ], framerate=(fraction)[ 1/1, 90/1 ];
                video/x-raw, format=(string)UYVY, width=(int)[ 32, 4056, 2 ], height=(int)[ 32, 3040, 2 ], framerate=(fraction)[ 1/1, 90/1 ];
                video/x-raw, format=(string)I420, width=(int)[ 32, 4056, 2 ], height=(int)[ 32, 3040, 2 ], framerate=(fraction)[ 1/1, 90/1 ];
                video/x-raw, format=(string)YV12, width=(int)[ 32, 4056, 2 ], height=(int)[ 32, 3040, 2 ], framerate=(fraction)[ 1/1, 90/1 ];
                image/jpeg, width=(int)[ 32, 4056, 2 ], height=(int)[ 32, 3040, 2 ], framerate=(fraction)[ 1/1, 90/1 ];
                image/jpeg, width=(int)[ 32, 4056, 2 ], height=(int)[ 32, 3040, 2 ], framerate=(fraction)[ 1/1, 90/1 ];
                video/x-raw, format=(string)BGR, width=(int)[ 32, 4056, 2 ], height=(int)[ 32, 3040, 2 ], framerate=(fraction)[ 1/1, 90/1 ];
                video/x-raw, format=(string)RGB, width=(int)[ 32, 4056, 2 ], height=(int)[ 32, 3040, 2 ], framerate=(fraction)[ 1/1, 90/1 ];
                video/x-raw, format=(string)NV21, width=(int)[ 32, 4056, 2 ], height=(int)[ 32, 3040, 2 ], framerate=(fraction)[ 1/1, 90/1 ];
                video/x-raw, format=(string)NV12, width=(int)[ 32, 4056, 2 ], height=(int)[ 32, 3040, 2 ], framerate=(fraction)[ 1/1, 90/1 ];
                video/x-raw, format=(string)YVYU, width=(int)[ 32, 4056, 2 ], height=(int)[ 32, 3040, 2 ], framerate=(fraction)[ 1/1, 90/1 ];
                video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)[ 32, 4056, 2 ], height=(int)[ 32, 3040, 2 ], framerate=(fraction)[ 1/1, 90/1 ];
        properties:
                udev-probed = true
                device.bus_path = /sys/devices/virtual/video4linux/video0
                sysfs.path = /sys/devices/virtual/video4linux/video0
                device.subsystem = video4linux
                device.product.name = "mmal\ service\ 16.1"
                device.capabilities = :capture:video_overlay:
                device.api = v4l2
                device.path = /dev/video0
                v4l2.device.driver = "bm2835\ mmal"
                v4l2.device.card = "mmal\ service\ 16.1"
                v4l2.device.bus_info = platform:bcm2835-v4l2-0
                v4l2.device.version = 330257 (0x00050a11)
                v4l2.device.capabilities = 2233466885 (0x85200005)
                v4l2.device.device_caps = 85983237 (0x05200005)
        gst-launch-1.0 v4l2src ! ...