summaryrefslogtreecommitdiff
path: root/Documentation/media/uapi/dvb/audio-get-pts.rst
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/media/uapi/dvb/audio-get-pts.rst')
-rw-r--r--Documentation/media/uapi/dvb/audio-get-pts.rst69
1 files changed, 69 insertions, 0 deletions
diff --git a/Documentation/media/uapi/dvb/audio-get-pts.rst b/Documentation/media/uapi/dvb/audio-get-pts.rst
new file mode 100644
index 000000000..5f875508b
--- /dev/null
+++ b/Documentation/media/uapi/dvb/audio-get-pts.rst
@@ -0,0 +1,69 @@
+.. -*- 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+This ioctl is obsolete.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.