blob: 131def9623055a0d254ae8d2237e796e20b54179 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
.. -*- coding: utf-8; mode: rst -*-
.. _VIDEO_GET_FRAME_RATE:
====================
VIDEO_GET_FRAME_RATE
====================
Name
----
VIDEO_GET_FRAME_RATE
Synopsis
--------
.. cpp:function:: int ioctl(int fd, int request = VIDEO_GET_FRAME_RATE, unsigned int *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.
|
