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Linux kernel mirror (for testing)
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1.. Permission is granted to copy, distribute and/or modify this
2.. document under the terms of the GNU Free Documentation License,
3.. Version 1.1 or any later version published by the Free Software
4.. Foundation, with no Invariant Sections, no Front-Cover Texts
5.. and no Back-Cover Texts. A copy of the license is included at
6.. Documentation/media/uapi/fdl-appendix.rst.
7..
8.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
9
10.. _VIDEO_STILLPICTURE:
11
12==================
13VIDEO_STILLPICTURE
14==================
15
16Name
17----
18
19VIDEO_STILLPICTURE
20
21.. attention:: This ioctl is deprecated.
22
23Synopsis
24--------
25
26.. c:function:: int ioctl(fd, VIDEO_STILLPICTURE, struct video_still_picture *sp)
27 :name: VIDEO_STILLPICTURE
28
29
30Arguments
31---------
32
33.. flat-table::
34 :header-rows: 0
35 :stub-columns: 0
36
37
38 - .. row 1
39
40 - int fd
41
42 - File descriptor returned by a previous call to open().
43
44 - .. row 2
45
46 - int request
47
48 - Equals VIDEO_STILLPICTURE for this command.
49
50 - .. row 3
51
52 - struct video_still_picture \*sp
53
54 - Pointer to a location where an I-frame and size is stored.
55
56
57Description
58-----------
59
60This ioctl call asks the Video Device to display a still picture
61(I-frame). The input data shall contain an I-frame. If the pointer is
62NULL, then the current displayed still picture is blanked.
63
64
65Return Value
66------------
67
68On success 0 is returned, on error -1 and the ``errno`` variable is set
69appropriately. The generic error codes are described at the
70:ref:`Generic Error Codes <gen-errors>` chapter.