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.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.video
.. _VIDEO_SET_FORMAT:
================
VIDEO_SET_FORMAT
================
Name
----
VIDEO_SET_FORMAT
.. attention:: This ioctl is deprecated.
Synopsis
--------
.. c:macro:: VIDEO_SET_FORMAT
``int ioctl(fd, VIDEO_SET_FORMAT, video_format_t format)``
Arguments
---------
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
- File descriptor returned by a previous call to open().
- .. row 2
- int request
- Equals VIDEO_SET_FORMAT for this command.
- .. row 3
- video_format_t format
- video format of TV as defined in section ??.
Description
-----------
This ioctl sets the screen format (aspect ratio) of the connected output
device (TV) so that the output of the decoder can be adjusted
accordingly.
.. c:type:: video_format_t
.. code-block:: c
typedef enum {
VIDEO_FORMAT_4_3, /* Select 4:3 format */
VIDEO_FORMAT_16_9, /* Select 16:9 format. */
VIDEO_FORMAT_221_1 /* 2.21:1 */
} video_format_t;
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``
- format is not a valid video format.
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