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gerrit-public.fairphone.software / kernel / msm-4.19 / ed6de4560ad2f7578be3a9ca1364e268c641f3a7 / . / Documentation / media / uapi / dvb / video-slowmotion.rst
blob: bd3d1a4070d9769e3b19684af5b46bddbd5663d3 [file] [log] [blame]
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]1.. -*- coding: utf-8; mode: rst -*-
2
3.. _VIDEO_SLOWMOTION:
4
Mauro Carvalho Chehab586027c2016-07-05 07:58:48 -0300[diff] [blame]5================
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]6VIDEO_SLOWMOTION
7================
8
Mauro Carvalho Chehab15e7d612016-07-05 15:14:35 -0300[diff] [blame]9Name
Mauro Carvalho Chehab586027c2016-07-05 07:58:48 -0300[diff] [blame]10----
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]11
Mauro Carvalho Chehab586027c2016-07-05 07:58:48 -0300[diff] [blame]12VIDEO_SLOWMOTION
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]13
Mauro Carvalho Chehabcf8076c2016-08-19 16:56:15 -0300[diff] [blame]14.. attention:: This ioctl is deprecated.
Mauro Carvalho Chehab15e7d612016-07-05 15:14:35 -0300[diff] [blame]15
16Synopsis
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]17--------
18
Mauro Carvalho Chehabcf8076c2016-08-19 16:56:15 -0300[diff] [blame]19.. c:function:: int ioctl(fd, VIDEO_SLOWMOTION, int nFrames)
20 :name: VIDEO_SLOWMOTION
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]21
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]22
Mauro Carvalho Chehab15e7d612016-07-05 15:14:35 -0300[diff] [blame]23Arguments
Mauro Carvalho Chehab586027c2016-07-05 07:58:48 -0300[diff] [blame]24---------
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]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
Mauro Carvalho Chehab15e7d612016-07-05 15:14:35 -0300[diff] [blame]50Description
Mauro Carvalho Chehab586027c2016-07-05 07:58:48 -0300[diff] [blame]51-----------
52
53This ioctl call asks the video device to repeat decoding frames N number
54of times. This call can only be used if VIDEO_SOURCE_MEMORY is
55selected.
56
57
Mauro Carvalho Chehab15e7d612016-07-05 15:14:35 -0300[diff] [blame]58Return Value
Mauro Carvalho Chehab47d23e32016-07-05 10:37:31 -0300[diff] [blame]59------------
60
61On success 0 is returned, on error -1 and the ``errno`` variable is set
62appropriately. 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.