forked from Minki/linux
699f19e3f1
The usage of the term "DVB" at the dvb API docs is confusing, as, right now, it can refer to either the European digital TV standard or to the subsystem. So, prefer calling it as "Digital TV" on most places, to avoid ambiguity. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
64 lines
1.3 KiB
ReStructuredText
64 lines
1.3 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
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.. _VIDEO_FREEZE:
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============
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VIDEO_FREEZE
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============
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Name
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----
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VIDEO_FREEZE
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.. attention:: This ioctl is deprecated.
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Synopsis
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--------
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.. c:function:: int ioctl(fd, VIDEO_FREEZE)
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:name: VIDEO_FREEZE
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Arguments
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---------
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.. flat-table::
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:header-rows: 0
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:stub-columns: 0
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- .. row 1
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- int fd
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- File descriptor returned by a previous call to open().
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- .. row 2
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- int request
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- Equals VIDEO_FREEZE for this command.
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Description
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-----------
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This ioctl is for Digital TV devices only. To control a V4L2 decoder use the
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V4L2 :ref:`VIDIOC_DECODER_CMD` instead.
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This ioctl call suspends the live video stream being played. Decoding
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and playing are frozen. It is then possible to restart the decoding and
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playing process of the video stream using the VIDEO_CONTINUE command.
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If VIDEO_SOURCE_MEMORY is selected in the ioctl call
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VIDEO_SELECT_SOURCE, the Digital TV subsystem will not decode any more data
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until the ioctl call VIDEO_CONTINUE or VIDEO_PLAY is performed.
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Return Value
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------------
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On success 0 is returned, on error -1 and the ``errno`` variable is set
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appropriately. The generic error codes are described at the
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:ref:`Generic Error Codes <gen-errors>` chapter.
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