mirror of
https://github.com/torvalds/linux.git
synced 2024-12-13 14:43:03 +00:00
60c2820d0f
The name of the subsystem is "media", and not "linux_tv". Also, as we plan to add other stuff there in the future, let's rename also the media uAPI book to media_uapi, to make it clearer. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
70 lines
1.3 KiB
ReStructuredText
70 lines
1.3 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
|
|
|
|
.. _AUDIO_GET_PTS:
|
|
|
|
=============
|
|
AUDIO_GET_PTS
|
|
=============
|
|
|
|
Name
|
|
----
|
|
|
|
AUDIO_GET_PTS
|
|
|
|
|
|
Synopsis
|
|
--------
|
|
|
|
.. cpp:function:: int ioctl(int fd, int request = AUDIO_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 AUDIO_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This ioctl is obsolete.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. If you need this
|
|
functionality, then please contact the linux-media mailing list
|
|
(`https://linuxtv.org/lists.php <https://linuxtv.org/lists.php>`__).
|
|
|
|
This ioctl call asks the Audio 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.
|