Applications can use the following API to select an area in the video
signal, query the default area and the hardware limits. *Despite their
name, the :ref:`VIDIOC_CROPCAP`,
-:ref:`VIDIOC_G_CROP` and
+:ref:`VIDIOC_G_CROP <VIDIOC_G_CROP>` and
:ref:`VIDIOC_S_CROP <VIDIOC_G_CROP>` ioctls apply to input as well
as output devices.*
device the source is the video signal, and the cropping ioctls determine
the area actually sampled. The target are images read by the application
or overlaid onto the graphics screen. Their size (and position for an
-overlay) is negotiated with the :ref:`VIDIOC_G_FMT`
+overlay) is negotiated with the :ref:`VIDIOC_G_FMT <VIDIOC_G_FMT>`
and :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` ioctls.
On a video output device the source are the images passed in by the