| .. -*- coding: utf-8; mode: rst -*- |
| |
| .. _VIDEO_SET_ATTRIBUTES: |
| |
| ==================== |
| VIDEO_SET_ATTRIBUTES |
| ==================== |
| |
| Name |
| ---- |
| |
| VIDEO_SET_ATTRIBUTES |
| |
| .. attention:: This ioctl is deprecated. |
| |
| Synopsis |
| -------- |
| |
| .. c:function:: int ioctl(fd, VIDEO_SET_ATTRIBUTE ,video_attributes_t vattr) |
| :name: VIDEO_SET_ATTRIBUTE |
| |
| |
| 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_ATTRIBUTE for this command. |
| |
| - .. row 3 |
| |
| - video_attributes_t vattr |
| |
| - video attributes according to section ??. |
| |
| |
| Description |
| ----------- |
| |
| This ioctl is intended for DVD playback and allows you to set certain |
| information about the stream. Some hardware may not need this |
| information, but the call also tells the hardware to prepare for DVD |
| playback. |
| |
| .. c:type:: video_attributes_t |
| |
| .. code-block::c |
| |
| typedef __u16 video_attributes_t; |
| /* bits: descr. */ |
| /* 15-14 Video compression mode (0=MPEG-1, 1=MPEG-2) */ |
| /* 13-12 TV system (0=525/60, 1=625/50) */ |
| /* 11-10 Aspect ratio (0=4:3, 3=16:9) */ |
| /* 9- 8 permitted display mode on 4:3 monitor (0=both, 1=only pan-sca */ |
| /* 7 line 21-1 data present in GOP (1=yes, 0=no) */ |
| /* 6 line 21-2 data present in GOP (1=yes, 0=no) */ |
| /* 5- 3 source resolution (0=720x480/576, 1=704x480/576, 2=352x480/57 */ |
| /* 2 source letterboxed (1=yes, 0=no) */ |
| /* 0 film/camera mode (0=camera, 1=film (625/50 only)) */ |
| |
| |
| 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. |
| |
| |
| |
| .. flat-table:: |
| :header-rows: 0 |
| :stub-columns: 0 |
| |
| |
| - .. row 1 |
| |
| - ``EINVAL`` |
| |
| - input is not a valid attribute setting. |
