blob: db338e9f5379c7a3d02aa0a029fd588c023c63a9 [file] [log] [blame]
.. -*- coding: utf-8; mode: rst -*-
.. _VIDEO_FAST_FORWARD:
==================
VIDEO_FAST_FORWARD
==================
Name
----
VIDEO_FAST_FORWARD
Synopsis
--------
.. cpp:function:: int ioctl(fd, int request = VIDEO_FAST_FORWARD, int nFrames)
Arguments
---------
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- int fd
- File descriptor returned by a previous call to open().
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- int request
- Equals VIDEO_FAST_FORWARD for this command.
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- 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.