<launch>
  <!-- This node description you can take from usb_cam-test.launch -->
  <node name="usb_cam" pkg="usb_cam" type="usb_cam_node" output="screen" >
    <param name="video_device" value="/dev/video0" />
    <param name="image_width" value="640" />
    <param name="image_height" value="480" />
    <param name="pixel_format" value="yuyv" />
    <param name="camera_frame_id" value="usb_cam" />
    <param name="io_method" value="mmap"/>
  </node>
  <!-- This node will launch web video server -->
  <node name="web_video_server" pkg="web_video_server" type="web_video_server" />
</launch>