Lines Matching +full:no +full:- +full:output

1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
6 Video Output Overlay Interface
9 **Also known as On-Screen Display (OSD)**
11 Some video output devices can overlay a framebuffer image onto the
17 as the :ref:`Video Output <capture>` function.
22    capturing or output. The OSD function is only available after calling
29 Devices supporting the *Video Output Overlay* interface set the
57 ---------------------------------------------
59 .. code-block:: c
67     if (-1 == ioctl(fd, VIDIOC_G_FBUF, &fbuf)) {
79 	if (-1 == fb_fd) {
81 	    case ENOENT: /* no such file */
82 	    case ENXIO:  /* no driver */
99 	fb_fd = -1;
103        for the video output overlay, or -1 if no device was found. */
141 *Video Output* and *Video Output Overlay* devices in the same way as to
149 There is no V4L2 ioctl to enable or disable the overlay, however the