media/v4l/ext-ctrls-camera.rst

53     Determines the exposure time of the camera sensor. The exposure time
73     light at the image sensor. The camera performs the exposure
82     Determines how the camera measures the amount of light available for
108     This control turns the camera horizontally by the specified amount.
109     The unit is undefined. A positive value moves the camera to the
115     This control turns the camera vertically by the specified amount.
116     The unit is undefined. A positive value moves the camera up, a
121     When this control is set, the camera moves horizontally to the
125     When this control is set, the camera moves vertically to the default
129     This control turns the camera horizontally to the specified
130     position. Positive values move the camera to the right (clockwise
136     This control turns the camera vertically to the specified position.
137     Positive values move the camera up, negative values down. Drivers
142     This control sets the focal point of the camera to the specified
144     closer to the camera, negative values towards infinity.
147     This control moves the focal point of the camera by the specified
149     to the camera, negative values towards infinity. This is a
210       - The camera automatically selects the focus range.
215       - Macro (close-up) auto focus. The camera will use its minimum
243     This control sets the camera's aperture to the specified value. The
248     This control modifies the camera's aperture by the specified amount.
254     Prevent video from being acquired by the camera. When this control
255     is set to ``TRUE`` (1), no image can be captured by the camera.
262     Switch the band-stop filter of a camera sensor on or off, or specify
273     determine color temperature of the light as a hint to the camera for
296       - With this setting the camera will compensate for fluorescent H
305       - With this setting the camera will compensate for the flash light.
321     Enables or disables the camera's wide dynamic range feature. This
373     This control allows to select scene programs as the camera automatic
375     camera determines best exposure, aperture, focusing, light metering,
378     behavior in each mode is subject to the camera specification.
403 	scenes, which tend to look gray and low contrast, when camera's
409       - Candle light. The camera generally raises the ISO sensitivity and
415 	before dusk and after down. The camera may turn off the flash, and
424 	burst of light from a firework. The camera may invoke image
427       - Landscape. The camera may choose a small aperture to provide deep
434 	out bright objects. The camera generally sets itself to a
440 	by indoor background lighting as well as the flash. The camera
444       - Portrait. The camera adjusts the aperture so that the depth of
470     by setting the corresponding lock bit to 1. The camera then retains
497     This control turns the camera horizontally at the specific speed.
498     The unit is undefined. A positive value moves the camera to the
504     This control turns the camera vertically at the specified speed. The
505     unit is undefined. A positive value moves the camera up, a negative
509 .. _v4l2-camera-sensor-orientation:
512     This read-only control describes the camera orientation by reporting its
513     mounting position on the device where the camera is installed. The control
518     example, a camera installed on the user-facing side of a phone, a tablet or
520     orientation, while a camera installed on the opposite side of the front one
534       - The camera is oriented towards the user facing side of the device.
536       - The camera is oriented towards the back facing side of the device.
538       - The camera is not directly attached to the device and is freely movable.
541 .. _v4l2-camera-sensor-rotation:
546     captured to memory to compensate for the camera sensor mounting rotation.
572     the camera module of the laptop is installed on the user facing part of a
577     The camera is typically mounted upside-down to compensate the lens optical
582     If the camera sensor is not mounted upside-down it is required to compensate
614     Example two - Phone camera
617     with you and take pictures with the camera that is installed on the back
622     The camera sensor is typically mounted with its pixel array longer side