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- .. -*- coding: utf-8; mode: rst -*-
- .. _VIDEO_STILLPICTURE:
- ==================
- VIDEO_STILLPICTURE
- ==================
- Name
- ----
- VIDEO_STILLPICTURE
- .. attention:: This ioctl is deprecated.
- Synopsis
- --------
- .. c:function:: int ioctl(fd, VIDEO_STILLPICTURE, struct video_still_picture *sp)
- :name: VIDEO_STILLPICTURE
- 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_STILLPICTURE for this command.
- - .. row 3
- - struct video_still_picture \*sp
- - Pointer to a location where an I-frame and size is stored.
- Description
- -----------
- This ioctl call asks the Video Device to display a still picture
- (I-frame). The input data shall contain an I-frame. If the pointer is
- NULL, then the current displayed still picture is blanked.
- 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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