1*4882a593Smuzhiyun.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2*4882a593Smuzhiyun.. c:namespace:: DTV.video 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun.. _VIDEO_SET_FORMAT: 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun================ 7*4882a593SmuzhiyunVIDEO_SET_FORMAT 8*4882a593Smuzhiyun================ 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunName 11*4882a593Smuzhiyun---- 12*4882a593Smuzhiyun 13*4882a593SmuzhiyunVIDEO_SET_FORMAT 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun.. attention:: This ioctl is deprecated. 16*4882a593Smuzhiyun 17*4882a593SmuzhiyunSynopsis 18*4882a593Smuzhiyun-------- 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun.. c:macro:: VIDEO_SET_FORMAT 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun``int ioctl(fd, VIDEO_SET_FORMAT, video_format_t format)`` 23*4882a593Smuzhiyun 24*4882a593SmuzhiyunArguments 25*4882a593Smuzhiyun--------- 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun.. flat-table:: 28*4882a593Smuzhiyun :header-rows: 0 29*4882a593Smuzhiyun :stub-columns: 0 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun - .. row 1 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun - int fd 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun - File descriptor returned by a previous call to open(). 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun - .. row 2 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun - int request 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun - Equals VIDEO_SET_FORMAT for this command. 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun - .. row 3 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun - video_format_t format 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun - video format of TV as defined in section ??. 48*4882a593Smuzhiyun 49*4882a593SmuzhiyunDescription 50*4882a593Smuzhiyun----------- 51*4882a593Smuzhiyun 52*4882a593SmuzhiyunThis ioctl sets the screen format (aspect ratio) of the connected output 53*4882a593Smuzhiyundevice (TV) so that the output of the decoder can be adjusted 54*4882a593Smuzhiyunaccordingly. 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun.. c:type:: video_format_t 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun.. code-block:: c 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun typedef enum { 61*4882a593Smuzhiyun VIDEO_FORMAT_4_3, /* Select 4:3 format */ 62*4882a593Smuzhiyun VIDEO_FORMAT_16_9, /* Select 16:9 format. */ 63*4882a593Smuzhiyun VIDEO_FORMAT_221_1 /* 2.21:1 */ 64*4882a593Smuzhiyun } video_format_t; 65*4882a593Smuzhiyun 66*4882a593SmuzhiyunReturn Value 67*4882a593Smuzhiyun------------ 68*4882a593Smuzhiyun 69*4882a593SmuzhiyunOn success 0 is returned, on error -1 and the ``errno`` variable is set 70*4882a593Smuzhiyunappropriately. The generic error codes are described at the 71*4882a593Smuzhiyun:ref:`Generic Error Codes <gen-errors>` chapter. 72*4882a593Smuzhiyun 73*4882a593Smuzhiyun 74*4882a593Smuzhiyun.. flat-table:: 75*4882a593Smuzhiyun :header-rows: 0 76*4882a593Smuzhiyun :stub-columns: 0 77*4882a593Smuzhiyun 78*4882a593Smuzhiyun - .. row 1 79*4882a593Smuzhiyun 80*4882a593Smuzhiyun - ``EINVAL`` 81*4882a593Smuzhiyun 82*4882a593Smuzhiyun - format is not a valid video format. 83