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.. -*- coding: utf-8; mode: rst -*-
.. _VIDEO_GET_NAVI:
==============
VIDEO_GET_NAVI
==============
Name
----
VIDEO_GET_NAVI
Synopsis
--------
.. cpp:function:: int ioctl(fd, int request = VIDEO_GET_NAVI , video_navi_pack_t *navipack)
Arguments
---------
.. flat-table::
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- .. row 1
- int fd
- File descriptor returned by a previous call to open().
- .. row 2
- int request
- Equals VIDEO_GET_NAVI for this command.
- .. row 3
- video_navi_pack_t \*navipack
- PCI or DSI pack (private stream 2) according to section ??.
Description
-----------
This ioctl returns navigational information from the DVD stream. This is
especially needed if an encoded stream has to be decoded by the
hardware.
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.
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- .. row 1
- ``EFAULT``
- driver is not able to return navigational information
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