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Linux kernel mirror (for testing)
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kernel
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linux
1.. -*- coding: utf-8; mode: rst -*-
2
3.. _VIDEO_SET_FORMAT:
4
5================
6VIDEO_SET_FORMAT
7================
8
9Name
10----
11
12VIDEO_SET_FORMAT
13
14
15Synopsis
16--------
17
18.. cpp:function:: int ioctl(fd, int request = VIDEO_SET_FORMAT, video_format_t format)
19
20
21Arguments
22---------
23
24.. flat-table::
25 :header-rows: 0
26 :stub-columns: 0
27
28
29 - .. row 1
30
31 - int fd
32
33 - File descriptor returned by a previous call to open().
34
35 - .. row 2
36
37 - int request
38
39 - Equals VIDEO_SET_FORMAT for this command.
40
41 - .. row 3
42
43 - video_format_t format
44
45 - video format of TV as defined in section ??.
46
47
48Description
49-----------
50
51This ioctl sets the screen format (aspect ratio) of the connected output
52device (TV) so that the output of the decoder can be adjusted
53accordingly.
54
55
56Return Value
57------------
58
59On success 0 is returned, on error -1 and the ``errno`` variable is set
60appropriately. The generic error codes are described at the
61:ref:`Generic Error Codes <gen-errors>` chapter.
62
63
64
65.. flat-table::
66 :header-rows: 0
67 :stub-columns: 0
68
69
70 - .. row 1
71
72 - ``EINVAL``
73
74 - format is not a valid video format.