$ v4l2-ctl -d /dev/video1 --all
Driver Info (not using libv4l2):
        Driver name   : uvcvideo
        Card type     : HD Pro Webcam C920
        Bus info      : usb-0000:00:1d.7-3
        Driver version: 3.2.12
        Capabilities  : 0x04000001
                Video Capture
                Streaming
Format Video Capture:
        Width/Height  : 1920/1080
        Pixel Format  : 'MJPG'
        Field         : None
        Bytes per Line: 0
        Size Image    : 4147200
        Colorspace    : SRGB
Crop Capability Video Capture:
        Bounds      : Left 0, Top 0, Width 1920, Height 1080
        Default     : Left 0, Top 0, Width 1920, Height 1080
        Pixel Aspect: 1/1
Video input : 0 (Camera 1: ok)
Streaming Parameters Video Capture:
        Capabilities     : timeperframe
        Frames per second: 30.000 (30/1)
        Read buffers     : 0

$ v4l2-ctl -d /dev/video1 --set-fmt-video=width=1920,height=1080,pixelformat=H264

$ v4l2-ctl -d /dev/video1 --all
Driver Info (not using libv4l2):
        Driver name   : uvcvideo
        Card type     : HD Pro Webcam C920
        Bus info      : usb-0000:00:1d.7-3
        Driver version: 3.2.12
        Capabilities  : 0x04000001
                Video Capture
                Streaming
Format Video Capture:
        Width/Height  : 1920/1080
        Pixel Format  : 'H264'
        Field         : None
        Bytes per Line: 3840
        Size Image    : 4147200
        Colorspace    : SRGB
Crop Capability Video Capture:
        Bounds      : Left 0, Top 0, Width 1920, Height 1080
        Default     : Left 0, Top 0, Width 1920, Height 1080
        Pixel Aspect: 1/1
Video input : 0 (Camera 1: ok)
Streaming Parameters Video Capture:
        Capabilities     : timeperframe
        Frames per second: 30.000 (30/1)
        Read buffers     : 0