video-play.rst

.. -*- coding: utf-8; mode: rst -*-

.. _VIDEO_PLAY:

==========
VIDEO_PLAY
==========

Name
----

VIDEO_PLAY


Synopsis
--------

.. c:function:: int ioctl(fd, int request = VIDEO_PLAY)


Arguments
---------

.. flat-table::
    :header-rows:  0
    :stub-columns: 0


    -  .. row 1

       -  int fd

       -  File descriptor returned by a previous call to open().

    -  .. row 2

       -  int request

       -  Equals VIDEO_PLAY for this command.


Description
-----------

This ioctl is for DVB devices only. To control a V4L2 decoder use the
V4L2 :ref:`VIDIOC_DECODER_CMD` instead.

This ioctl call asks the Video Device to start playing a video stream
from the selected source.


Return Value
------------

On success 0 is returned, on error -1 and the ``errno`` variable is set
appropriately. The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.