video-get-pts.rst (1372B)
1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2.. c:namespace:: DTV.video 3 4.. _VIDEO_GET_PTS: 5 6============= 7VIDEO_GET_PTS 8============= 9 10Name 11---- 12 13VIDEO_GET_PTS 14 15.. attention:: This ioctl is deprecated. 16 17Synopsis 18-------- 19 20.. c:macro:: VIDEO_GET_PTS 21 22``int ioctl(int fd, VIDEO_GET_PTS, __u64 *pts)`` 23 24Arguments 25--------- 26 27.. flat-table:: 28 :header-rows: 0 29 :stub-columns: 0 30 31 - .. row 1 32 33 - int fd 34 35 - File descriptor returned by a previous call to open(). 36 37 - .. row 2 38 39 - int request 40 41 - Equals VIDEO_GET_PTS for this command. 42 43 - .. row 3 44 45 - __u64 \*pts 46 47 - Returns the 33-bit timestamp as defined in ITU T-REC-H.222.0 / 48 ISO/IEC 13818-1. 49 50 The PTS should belong to the currently played frame if possible, 51 but may also be a value close to it like the PTS of the last 52 decoded frame or the last PTS extracted by the PES parser. 53 54Description 55----------- 56 57This ioctl is obsolete. Do not use in new drivers. For V4L2 decoders 58this ioctl has been replaced by the ``V4L2_CID_MPEG_VIDEO_DEC_PTS`` 59control. 60 61This ioctl call asks the Video Device to return the current PTS 62timestamp. 63 64Return Value 65------------ 66 67On success 0 is returned, on error -1 and the ``errno`` variable is set 68appropriately. The generic error codes are described at the 69:ref:`Generic Error Codes <gen-errors>` chapter.