Documentation/media/uapi/dvb/video-get-frame-count.rst

   1 .. -*- coding: utf-8; mode: rst -*-
   2
   3 .. _VIDEO_GET_FRAME_COUNT:
   4
   5 =====================
   6 VIDEO_GET_FRAME_COUNT
   7 =====================
   8
   9 Name
  10 ----
  11
  12 VIDEO_GET_FRAME_COUNT
  13
  14
  15 Synopsis
  16 --------
  17
  18 .. cpp:function:: int ioctl(int fd, int request = VIDEO_GET_FRAME_COUNT, __u64 *pts)
  19
  20
  21 Arguments
  22 ---------
  23
  24 .. flat-table::
  25     :header-rows:  0
  26     :stub-columns: 0
  27
  28
  29     -  .. row 1
  30
  31        -  int fd
  32
  33        -  File descriptor returned by a previous call to open().
  34
  35     -  .. row 2
  36
  37        -  int request
  38
  39        -  Equals VIDEO_GET_FRAME_COUNT for this command.
  40
  41     -  .. row 3
  42
  43        -  __u64 \*pts
  44
  45        -  Returns the number of frames displayed since the decoder was
  46           started.
  47
  48
  49 Description
  50 -----------
  51
  52 This ioctl is obsolete. Do not use in new drivers. For V4L2 decoders
  53 this ioctl has been replaced by the ``V4L2_CID_MPEG_VIDEO_DEC_FRAME``
  54 control.
  55
  56 This ioctl call asks the Video Device to return the number of displayed
  57 frames since the decoder was started.
  58
  59
  60 Return Value
  61 ------------
  62
  63 On success 0 is returned, on error -1 and the ``errno`` variable is set
  64 appropriately. The generic error codes are described at the
  65 :ref:`Generic Error Codes <gen-errors>` chapter.