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.. -*- coding: utf-8; mode: rst -*-
.. _VIDEO_SET_SPU:
VIDEO_SET_SPU
=============
Description
-----------
This ioctl activates or deactivates SPU decoding in a DVD input stream.
It can only be used, if the driver is able to handle a DVD stream.
Synopsis
--------
.. c:function:: int ioctl(fd, int request = VIDEO_SET_SPU , video_spu_t *spu)
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_SET_SPU for this command.
- .. row 3
- video_spu_t \*spu
- SPU decoding (de)activation and subid setting according to section
??.
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
- ``EINVAL``
- input is not a valid spu setting or driver cannot handle SPU.
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