Lines Matching +full:light +full:- +full:sensor
4 .. Foundation, with no Invariant Sections, no Front-Cover Texts
5 .. and no Back-Cover Texts. A copy of the license is included at
6 .. Documentation/media/uapi/fdl-appendix.rst.
8 .. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
10 .. _camera-controls:
20 .. _camera-control-id:
30 .. _v4l2-exposure-auto-type:
35 enum v4l2_exposure_auto_type -
43 .. flat-table::
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45 :stub-columns: 0
47 * - ``V4L2_EXPOSURE_AUTO``
48 - Automatic exposure time, automatic iris aperture.
49 * - ``V4L2_EXPOSURE_MANUAL``
50 - Manual exposure time, manual iris.
51 * - ``V4L2_EXPOSURE_SHUTTER_PRIORITY``
52 - Manual exposure time, auto iris.
53 * - ``V4L2_EXPOSURE_APERTURE_PRIORITY``
54 - Auto exposure time, manual iris.
59 Determines the exposure time of the camera sensor. The exposure time
79 light at the image sensor. The camera performs the exposure
82 .. _v4l2-exposure-metering:
87 enum v4l2_exposure_metering -
88 Determines how the camera measures the amount of light available for
93 .. flat-table::
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95 :stub-columns: 0
97 * - ``V4L2_EXPOSURE_METERING_AVERAGE``
98 - Use the light information coming from the entire frame and average
100 * - ``V4L2_EXPOSURE_METERING_CENTER_WEIGHTED``
101 - Average the light information coming from the entire frame giving
103 * - ``V4L2_EXPOSURE_METERING_SPOT``
104 - Measure only very small area at the center of the frame.
105 * - ``V4L2_EXPOSURE_METERING_MATRIX``
106 - A multi-zone metering. The light intensity is measured in several
117 left. A value of zero does not cause motion. This is a write-only
124 a write-only control.
138 interpret the values as arc seconds, with valid values between -180
145 between -180 * 3600 and +180 * 3600 inclusive.
156 write-only control.
174 .. _v4l2-auto-focus-status:
177 The automatic focus status. This is a read-only control.
185 .. flat-table::
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189 * - ``V4L2_AUTO_FOCUS_STATUS_IDLE``
190 - Automatic focus is not active.
191 * - ``V4L2_AUTO_FOCUS_STATUS_BUSY``
192 - Automatic focusing is in progress.
193 * - ``V4L2_AUTO_FOCUS_STATUS_REACHED``
194 - Focus has been reached.
195 * - ``V4L2_AUTO_FOCUS_STATUS_FAILED``
196 - Automatic focus has failed, the driver will not transition from
201 .. _v4l2-auto-focus-range:
206 enum v4l2_auto_focus_range -
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213 :stub-columns: 0
215 * - ``V4L2_AUTO_FOCUS_RANGE_AUTO``
216 - The camera automatically selects the focus range.
217 * - ``V4L2_AUTO_FOCUS_RANGE_NORMAL``
218 - Normal distance range, limited for best automatic focus
220 * - ``V4L2_AUTO_FOCUS_RANGE_MACRO``
221 - Macro (close-up) auto focus. The camera will use its minimum
223 * - ``V4L2_AUTO_FOCUS_RANGE_INFINITY``
224 - The lens is set to focus on an object at infinite distance.
230 zoom unit is driver-specific and its value should be a positive
236 telephoto direction, negative values towards the wide-angle
237 direction. The zoom unit is driver-specific. This is a write-only
246 wide-angle direction. The zoom speed unit is driver-specific.
257 write-only control.
263 sensor and firmware image processing, but the device is not
268 Switch the band-stop filter of a camera sensor on or off, or specify
269 its strength. Such band-stop filters can be used, for example, to
270 filter out the fluorescent light component.
272 .. _v4l2-auto-n-preset-white-balance:
277 enum v4l2_auto_n_preset_white_balance -
279 determine color temperature of the light as a hint to the camera for
286 .. flat-table::
287 :header-rows: 0
288 :stub-columns: 0
290 * - ``V4L2_WHITE_BALANCE_MANUAL``
291 - Manual white balance.
292 * - ``V4L2_WHITE_BALANCE_AUTO``
293 - Automatic white balance adjustments.
294 * - ``V4L2_WHITE_BALANCE_INCANDESCENT``
295 - White balance setting for incandescent (tungsten) lighting. It
298 * - ``V4L2_WHITE_BALANCE_FLUORESCENT``
299 - White balance preset for fluorescent lighting. It corresponds
301 * - ``V4L2_WHITE_BALANCE_FLUORESCENT_H``
302 - With this setting the camera will compensate for fluorescent H
304 * - ``V4L2_WHITE_BALANCE_HORIZON``
305 - White balance setting for horizon daylight. It corresponds
307 * - ``V4L2_WHITE_BALANCE_DAYLIGHT``
308 - White balance preset for daylight (with clear sky). It corresponds
310 * - ``V4L2_WHITE_BALANCE_FLASH``
311 - With this setting the camera will compensate for the flash light.
314 * - ``V4L2_WHITE_BALANCE_CLOUDY``
315 - White balance preset for moderately overcast sky. This option
318 * - ``V4L2_WHITE_BALANCE_SHADE``
319 - White balance preset for shade or heavily overcast sky. It
324 .. _v4l2-wide-dynamic-range:
334 .. _v4l2-image-stabilization:
340 Determines ISO equivalent of an image sensor indicating the sensor's
341 sensitivity to light. The numbers are expressed in arithmetic scale,
342 as per :ref:`iso12232` standard, where doubling the sensor
352 .. _v4l2-iso-sensitivity-auto-type:
357 enum v4l2_iso_sensitivity_type -
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363 :header-rows: 0
364 :stub-columns: 0
366 * - ``V4L2_CID_ISO_SENSITIVITY_MANUAL``
367 - Manual ISO sensitivity.
368 * - ``V4L2_CID_ISO_SENSITIVITY_AUTO``
369 - Automatic ISO sensitivity adjustments.
373 .. _v4l2-scene-mode:
378 enum v4l2_scene_mode -
381 camera determines best exposure, aperture, focusing, light metering,
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397 :header-rows: 0
398 :stub-columns: 0
400 * - ``V4L2_SCENE_MODE_NONE``
401 - The scene mode feature is disabled.
402 * - ``V4L2_SCENE_MODE_BACKLIGHT``
403 - Backlight. Compensates for dark shadows when light is coming from
405 * - ``V4L2_SCENE_MODE_BEACH_SNOW``
406 - Beach and snow. This mode compensates for all-white or bright
412 * - ``V4L2_SCENE_MODE_CANDLELIGHT``
413 - Candle light. The camera generally raises the ISO sensitivity and
416 preserve the ambiance of the light.
417 * - ``V4L2_SCENE_MODE_DAWN_DUSK``
418 - Dawn and dusk. Preserves the colors seen in low natural light
422 * - ``V4L2_SCENE_MODE_FALL_COLORS``
423 - Fall colors. Increases saturation and adjusts white balance for
426 * - ``V4L2_SCENE_MODE_FIREWORKS``
427 - Fireworks. Long exposure times are used to capture the expanding
428 burst of light from a firework. The camera may invoke image
430 * - ``V4L2_SCENE_MODE_LANDSCAPE``
431 - Landscape. The camera may choose a small aperture to provide deep
433 in dim light conditions. The focus is fixed at infinity. Suitable
435 * - ``V4L2_SCENE_MODE_NIGHT``
436 - Night, also known as Night Landscape. Designed for low light
439 medium-to-high ISO sensitivity, with a relatively long exposure
442 * - ``V4L2_SCENE_MODE_PARTY_INDOOR``
443 - Party and indoor. Designed to capture indoor scenes that are lit
446 low light conditions.
447 * - ``V4L2_SCENE_MODE_PORTRAIT``
448 - Portrait. The camera adjusts the aperture so that the depth of
453 * - ``V4L2_SCENE_MODE_SPORTS``
454 - Sports. Significantly increases ISO and uses a fast shutter speed
455 to freeze motion of rapidly-moving subjects. Increased image noise
457 * - ``V4L2_SCENE_MODE_SUNSET``
458 - Sunset. Preserves deep hues seen in sunsets and sunrises. It bumps
460 * - ``V4L2_SCENE_MODE_TEXT``
461 - Text. It applies extra contrast and sharpness, it is typically a
462 black-and-white mode optimized for readability. Automatic focus
463 may be switched to close-up mode and this setting may also involve
464 some lens-distortion correction.
487 .. flat-table::
488 :header-rows: 0
489 :stub-columns: 0
491 * - ``V4L2_LOCK_EXPOSURE``
492 - Automatic exposure adjustments lock.
493 * - ``V4L2_LOCK_WHITE_BALANCE``
494 - Automatic white balance adjustments lock.
495 * - ``V4L2_LOCK_FOCUS``
496 - Automatic focus lock.