summaryrefslogtreecommitdiff
path: root/Documentation/userspace-api/media/dvb/video-get-status.rst
blob: 9b86fbf411d42cc554ad6eb1f8c4966033da0734 (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
60
61
62
63
64
65
66
67
68
69
70
71
72
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video

.. _VIDEO_GET_STATUS:

================
VIDEO_GET_STATUS
================

Name
----

VIDEO_GET_STATUS

.. attention:: This ioctl is deprecated.

Synopsis
--------

.. c:macro:: VIDEO_GET_STATUS

``int ioctl(fd, VIDEO_GET_STATUS, struct video_status *status)``

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_STATUS for this command.

    -  .. row 3

       -  struct video_status \*status

       -  Returns the current status of the Video Device.

Description
-----------

This ioctl call asks the Video Device to return the current status of
the device.

.. c:type:: video_status

.. code-block:: c

	struct video_status {
		int                   video_blank;   /* blank video on freeze? */
		video_play_state_t    play_state;    /* current state of playback */
		video_stream_source_t stream_source; /* current source (demux/memory) */
		video_format_t        video_format;  /* current aspect ratio of stream*/
		video_displayformat_t display_format;/* selected cropping mode */
	};

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.