Commit f9f81841 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
Browse files

media: dev-overlay.rst: cleanup the xvideo example 



It makes more sense to place the xvideo example at the body,
keeping the footnote only to justify the design decision.

While this makes the text better, it also fixes the PDF
output.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent fea13a69

Documentation/userspace-api/media/v4l/dev-overlay.rst

+4 −5
Original line number Diff line number Diff line
@@ -37,6 +37,10 @@ capturing and overlay. Optionally these drivers may also permit 
capturing and overlay with a single file descriptor for compatibility

with V4L and earlier versions of V4L2. [#f1]_



A common application of two file descriptors is the X11

:ref:`Xv/V4L <xvideo>` interface driver and a V4L2 application.

While the X server controls video overlay, the application can take

advantage of memory mapping and DMA.



Querying Capabilities

=====================
@@ -289,11 +293,6 @@ To start or stop the frame buffer overlay applications call the 
:ref:`VIDIOC_OVERLAY` ioctl.



.. [#f1]

   A common application of two file descriptors is the XFree86

   :ref:`Xv/V4L <xvideo>` interface driver and a V4L2 application.

   While the X server controls video overlay, the application can take

   advantage of memory mapping and DMA.



   In the opinion of the designers of this API, no driver writer taking

   the efforts to support simultaneous capturing and overlay will

   restrict this ability by requiring a single file descriptor, as in