1 .. SPDX-License-Identifier: GFDL-1.1-no-invari 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
2 .. c:namespace:: DTV.dmx 2 .. c:namespace:: DTV.dmx
3 3
4 .. _DMX_GET_PES_PIDS: 4 .. _DMX_GET_PES_PIDS:
5 5
6 ================ 6 ================
7 DMX_GET_PES_PIDS 7 DMX_GET_PES_PIDS
8 ================ 8 ================
9 9
10 Name 10 Name
11 ---- 11 ----
12 12
13 DMX_GET_PES_PIDS 13 DMX_GET_PES_PIDS
14 14
15 Synopsis 15 Synopsis
16 -------- 16 --------
17 17
18 .. c:macro:: DMX_GET_PES_PIDS 18 .. c:macro:: DMX_GET_PES_PIDS
19 19
20 ``int ioctl(fd, DMX_GET_PES_PIDS, __u16 pids[5 20 ``int ioctl(fd, DMX_GET_PES_PIDS, __u16 pids[5])``
21 21
22 Arguments 22 Arguments
23 --------- 23 ---------
24 24
25 ``fd`` 25 ``fd``
26 File descriptor returned by :c:func:`open( 26 File descriptor returned by :c:func:`open()`.
27 27
28 ``pids`` 28 ``pids``
29 Array used to store 5 Program IDs. 29 Array used to store 5 Program IDs.
30 30
31 Description 31 Description
32 ----------- 32 -----------
33 33
34 This ioctl allows to query a DVB device to ret 34 This ioctl allows to query a DVB device to return the first PID used
35 by audio, video, textext, subtitle and PCR pro 35 by audio, video, textext, subtitle and PCR programs on a given service.
36 They're stored as: 36 They're stored as:
37 37
38 ======================= ======== ====== 38 ======================= ======== =======================================
39 PID element position conten 39 PID element position content
40 ======================= ======== ====== 40 ======================= ======== =======================================
41 pids[DMX_PES_AUDIO] 0 first 41 pids[DMX_PES_AUDIO] 0 first audio PID
42 pids[DMX_PES_VIDEO] 1 first 42 pids[DMX_PES_VIDEO] 1 first video PID
43 pids[DMX_PES_TELETEXT] 2 first 43 pids[DMX_PES_TELETEXT] 2 first teletext PID
44 pids[DMX_PES_SUBTITLE] 3 first 44 pids[DMX_PES_SUBTITLE] 3 first subtitle PID
45 pids[DMX_PES_PCR] 4 first 45 pids[DMX_PES_PCR] 4 first Program Clock Reference PID
46 ======================= ======== ====== 46 ======================= ======== =======================================
47 47
48 .. note:: 48 .. note::
49 49
50 A value equal to 0xffff means that the 50 A value equal to 0xffff means that the PID was not filled by the
51 Kernel. 51 Kernel.
52 52
53 Return Value 53 Return Value
54 ------------ 54 ------------
55 55
56 On success 0 is returned. 56 On success 0 is returned.
57 57
58 On error -1 is returned, and the ``errno`` var 58 On error -1 is returned, and the ``errno`` variable is set
59 appropriately. 59 appropriately.
60 60
61 The generic error codes are described at the 61 The generic error codes are described at the
62 :ref:`Generic Error Codes <gen-errors>` chapte 62 :ref:`Generic Error Codes <gen-errors>` chapter.
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.