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