blob: fedaff41be0b5070bfc2fa22eab13ad5b991ed7a (
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
|
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_GET_PTS:
=============
VIDEO_GET_PTS
=============
Name
----
VIDEO_GET_PTS
.. attention:: This ioctl is deprecated.
Synopsis
--------
.. c:macro:: VIDEO_GET_PTS
``int ioctl(int fd, VIDEO_GET_PTS, __u64 *pts)``
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_PTS for this command.
- .. row 3
- __u64 \*pts
- Returns the 33-bit timestamp as defined in ITU T-REC-H.222.0 /
ISO/IEC 13818-1.
The PTS should belong to the currently played frame if possible,
but may also be a value close to it like the PTS of the last
decoded frame or the last PTS extracted by the PES parser.
Description
-----------
This ioctl is obsolete. Do not use in new drivers. For V4L2 decoders
this ioctl has been replaced by the ``V4L2_CID_MPEG_VIDEO_DEC_PTS``
control.
This ioctl call asks the Video Device to return the current PTS
timestamp.
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.
|
