OpenCloudOS-Kernel/Documentation/media/uapi/dvb/video-get-size.rst

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.. -*- coding: utf-8; mode: rst -*-
.. _VIDEO_GET_SIZE:
==============
VIDEO_GET_SIZE
==============
Name
----
VIDEO_GET_SIZE
Synopsis
--------
.. cpp:function:: int ioctl(int fd, int request = VIDEO_GET_SIZE, video_size_t *size)
Arguments
---------
.. flat-table::
:header-rows: 0
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- .. row 1
- int fd
- File descriptor returned by a previous call to open().
- .. row 2
- int request
- Equals VIDEO_GET_SIZE for this command.
- .. row 3
- video_size_t \*size
- Returns the size and aspect ratio.
Description
-----------
This ioctl returns the size and aspect ratio.
Return Value
------------
On success 0 is returned, on error -1 and the ``errno`` variable is set
appropriately. The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.