blob: 758a5d1642ab1cc94d02600faecb582328b4650d [file] [log] [blame]
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. _VIDEO_SET_FORMAT:
================
VIDEO_SET_FORMAT
================
Name
----
VIDEO_SET_FORMAT
.. attention:: This ioctl is deprecated.
Synopsis
--------
.. c:function:: int ioctl(fd, VIDEO_SET_FORMAT, video_format_t format)
:name: VIDEO_SET_FORMAT
Arguments
---------
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- int fd
- File descriptor returned by a previous call to open().
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- 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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- ``EINVAL``
- format is not a valid video format.