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.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_FAST_FORWARD:
==================
VIDEO_FAST_FORWARD
==================
Name
----
VIDEO_FAST_FORWARD
.. attention:: This ioctl is deprecated.
Synopsis
--------
.. c:macro:: VIDEO_FAST_FORWARD
``int ioctl(fd, VIDEO_FAST_FORWARD, int nFrames)``
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_FAST_FORWARD for this command.
- .. row 3
- int nFrames
- The number of frames to skip.
Description
-----------
This ioctl call asks the Video Device to skip decoding of N number of
I-frames. This call can only be used if VIDEO_SOURCE_MEMORY is
selected.
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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- ``EPERM``
- Mode VIDEO_SOURCE_MEMORY not selected.
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