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Diffstat (limited to 'Documentation/media/uapi/v4l/crop.rst')
| -rw-r--r-- | Documentation/media/uapi/v4l/crop.rst | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/Documentation/media/uapi/v4l/crop.rst b/Documentation/media/uapi/v4l/crop.rst index 51b1949..0913822 100644 --- a/Documentation/media/uapi/v4l/crop.rst +++ b/Documentation/media/uapi/v4l/crop.rst @@ -15,9 +15,9 @@ offset into a video signal. Applications can use the following API to select an area in the video signal, query the default area and the hardware limits. -**NOTE**: Despite their name, the :ref:`VIDIOC_CROPCAP <VIDIOC_CROPCAP>`, -:ref:`VIDIOC_G_CROP <VIDIOC_G_CROP>` and :ref:`VIDIOC_S_CROP -<VIDIOC_G_CROP>` ioctls apply to input as well as output devices. +.. note:: Despite their name, the :ref:`VIDIOC_CROPCAP <VIDIOC_CROPCAP>`, + :ref:`VIDIOC_G_CROP <VIDIOC_G_CROP>` and :ref:`VIDIOC_S_CROP + <VIDIOC_G_CROP>` ioctls apply to input as well as output devices. Scaling requires a source and a target. On a video capture or overlay device the source is the video signal, and the cropping ioctls determine @@ -38,9 +38,9 @@ support scaling or the :ref:`VIDIOC_G_CROP <VIDIOC_G_CROP>` and :ref:`VIDIOC_S_CROP <VIDIOC_G_CROP>` ioctls. Their size (and position where applicable) will be fixed in this case. -**NOTE:** All capture and output devices must support the -:ref:`VIDIOC_CROPCAP <VIDIOC_CROPCAP>` ioctl such that applications can -determine if scaling takes place. +.. note:: All capture and output devices must support the + :ref:`VIDIOC_CROPCAP <VIDIOC_CROPCAP>` ioctl such that applications + can determine if scaling takes place. Cropping Structures @@ -144,8 +144,8 @@ reopening a device, such that piping data into or out of a device will work without special preparations. More advanced applications should ensure the parameters are suitable before starting I/O. -**NOTE:** on the next two examples, a video capture device is assumed; -change ``V4L2_BUF_TYPE_VIDEO_CAPTURE`` for other types of device. +.. note:: On the next two examples, a video capture device is assumed; + change ``V4L2_BUF_TYPE_VIDEO_CAPTURE`` for other types of device. Example: Resetting the cropping parameters ========================================== @@ -207,7 +207,7 @@ Example: Simple downscaling Example: Selecting an output area ================================= -**NOTE:** This example assumes an output device. +.. note:: This example assumes an output device. .. code-block:: c @@ -246,7 +246,7 @@ Example: Selecting an output area Example: Current scaling factor and pixel aspect ================================================ -**NOTE:** This example assumes a video capture device. +.. note:: This example assumes a video capture device. .. code-block:: c |