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Linux kernel mirror (for testing)
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1.. -*- coding: utf-8; mode: rst -*-
2
3.. _DMX_GET_PES_PIDS:
4
5================
6DMX_GET_PES_PIDS
7================
8
9Name
10----
11
12DMX_GET_PES_PIDS
13
14
15Synopsis
16--------
17
18.. c:function:: int ioctl(fd, DMX_GET_PES_PIDS, __u16 pids[5])
19 :name: DMX_GET_PES_PIDS
20
21Arguments
22---------
23
24``fd``
25 File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
26
27``pids``
28 Array used to store 5 Program IDs.
29
30
31Description
32-----------
33
34This ioctl allows to query a DVB device to return the first PID used
35by audio, video, textext, subtitle and PCR programs on a given service.
36They're stored as:
37
38======================= ======== =======================================
39PID element position content
40======================= ======== =======================================
41pids[DMX_PES_AUDIO] 0 first audio PID
42pids[DMX_PES_VIDEO] 1 first video PID
43pids[DMX_PES_TELETEXT] 2 first teletext PID
44pids[DMX_PES_SUBTITLE] 3 first subtitle PID
45pids[DMX_PES_PCR] 4 first Program Clock Reference PID
46======================= ======== =======================================
47
48
49.. note::
50
51 A value equal to 0xffff means that the PID was not filled by the
52 Kernel.
53
54
55Return Value
56------------
57
58On success 0 is returned.
59
60On error -1 is returned, and the ``errno`` variable is set
61appropriately.
62
63The generic error codes are described at the
64:ref:`Generic Error Codes <gen-errors>` chapter.