Merge remote-tracking branch 'regulator/for-next'
[deliverable/linux.git] / Documentation / media / uapi / dvb / video-slowmotion.rst
1 .. -*- coding: utf-8; mode: rst -*-
2
3 .. _VIDEO_SLOWMOTION:
4
5 ================
6 VIDEO_SLOWMOTION
7 ================
8
9 Name
10 ----
11
12 VIDEO_SLOWMOTION
13
14 .. attention:: This ioctl is deprecated.
15
16 Synopsis
17 --------
18
19 .. c:function:: int ioctl(fd, VIDEO_SLOWMOTION, int nFrames)
20 :name: VIDEO_SLOWMOTION
21
22
23 Arguments
24 ---------
25
26 .. flat-table::
27 :header-rows: 0
28 :stub-columns: 0
29
30
31 - .. row 1
32
33 - int fd
34
35 - File descriptor returned by a previous call to open().
36
37 - .. row 2
38
39 - int request
40
41 - Equals VIDEO_SLOWMOTION for this command.
42
43 - .. row 3
44
45 - int nFrames
46
47 - The number of times to repeat each frame.
48
49
50 Description
51 -----------
52
53 This ioctl call asks the video device to repeat decoding frames N number
54 of times. This call can only be used if VIDEO_SOURCE_MEMORY is
55 selected.
56
57
58 Return Value
59 ------------
60
61 On success 0 is returned, on error -1 and the ``errno`` variable is set
62 appropriately. The generic error codes are described at the
63 :ref:`Generic Error Codes <gen-errors>` chapter.
64
65
66
67 .. flat-table::
68 :header-rows: 0
69 :stub-columns: 0
70
71
72 - .. row 1
73
74 - ``EPERM``
75
76 - Mode VIDEO_SOURCE_MEMORY not selected.
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