62 lines
1.0 KiB
ReStructuredText
62 lines
1.0 KiB
ReStructuredText
|
.. -*- coding: utf-8; mode: rst -*-
|
||
|
|
|
||
|
|
.. _VIDEO_GET_FRAME_RATE:
|
||
|
|
|
||
|
|
====================
|
||
|
|
VIDEO_GET_FRAME_RATE
|
||
|
|
====================
|
||
|
|
|
||
|
|
Name
|
||
|
|
----
|
||
|
|
|
||
|
|
VIDEO_GET_FRAME_RATE
|
||
|
|
|
||
|
|
.. attention:: This ioctl is deprecated.
|
||
|
|
|
||
|
|
Synopsis
|
||
|
|
--------
|
||
|
|
|
||
|
|
.. c:function:: int ioctl(int fd, VIDEO_GET_FRAME_RATE, unsigned int *rate)
|
||
|
|
:name: VIDEO_GET_FRAME_RATE
|
||
|
|
|
||
|
|
|
||
|
|
Arguments
|
||
|
|
---------
|
||
|
|
|
||
|
|
.. flat-table::
|
||
|
|
:header-rows: 0
|
||
|
|
:stub-columns: 0
|
||
|
|
|
||
|
|
|
||
|
|
- .. row 1
|
||
|
|
|
||
|
|
- int fd
|
||
|
|
|
||
|
|
- File descriptor returned by a previous call to open().
|
||
|
|
|
||
|
|
- .. row 2
|
||
|
|
|
||
|
|
- int request
|
||
|
|
|
||
|
|
- Equals VIDEO_GET_FRAME_RATE for this command.
|
||
|
|
|
||
|
|
- .. row 3
|
||
|
|
|
||
|
|
- unsigned int \*rate
|
||
|
|
|
||
|
|
- Returns the framerate in number of frames per 1000 seconds.
|
||
|
|
|
||
|
|
|
||
|
|
Description
|
||
|
|
-----------
|
||
|
|
|
||
|
|
This ioctl call asks the Video Device to return the current framerate.
|
||
|
|
|
||
|
|
|
||
|
|
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.
|