media/v4l/video.rst

1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
6 Video Inputs and Outputs
9 Video inputs and outputs are physical connectors of a device. These can
11 Video, S-Video and RGB connectors. Camera sensors are also considered to
12 be a video input. Video and VBI capture devices have inputs. Video and
14 no video inputs or outputs.
16 To learn about the number and attributes of the available inputs and
29 implement all the input ioctls when the device has one or more inputs,
30 all the output ioctls when the device has one or more outputs.
35 .. code-block:: c
40     if (-1 == ioctl(fd, VIDIOC_G_INPUT, &index)) {
48     if (-1 == ioctl(fd, VIDIOC_ENUMINPUT, &input)) {
59 .. code-block:: c
65     if (-1 == ioctl(fd, VIDIOC_S_INPUT, &index)) {