/**@class android.hardware.camera2.CameraCharacteristics @extends android.hardware.camera2.CameraMetadata <p>The properties describing a {@link android.hardware.camera2.CameraDevice android.hardware.camera2.CameraDevice}.</p> <p>These properties are fixed for a given CameraDevice, and can be queried through the {@link android.hardware.camera2.CameraManager android.hardware.camera2.CameraManager} interface with {@link android.hardware.camera2.CameraManager#getCameraCharacteristics}.</p> <p>{@link android.hardware.camera2.CameraCharacteristics} objects are immutable.</p> @see CameraDevice @see CameraManager */ var CameraCharacteristics = { /** <p>List of aberration correction modes for {@link android.hardware.camera2.CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE android.colorCorrection.aberrationMode} that are supported by this camera device.</p> <p>This key lists the valid modes for {@link android.hardware.camera2.CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE android.colorCorrection.aberrationMode}. If no aberration correction modes are available for a device, this list will solely include OFF mode. All camera devices will support either OFF or FAST mode.</p> <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always list OFF mode. This includes all FULL level devices.</p> <p>LEGACY devices will always only support FAST mode.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE android.colorCorrection.aberrationMode}</p> <p>This key is available on all devices.</p> @see CaptureRequest#COLOR_CORRECTION_ABERRATION_MODE */ COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES : "null", /** <p>List of auto-exposure antibanding modes for {@link android.hardware.camera2.CaptureRequest#CONTROL_AE_ANTIBANDING_MODE android.control.aeAntibandingMode} that are supported by this camera device.</p> <p>Not all of the auto-exposure anti-banding modes may be supported by a given camera device. This field lists the valid anti-banding modes that the application may request for this camera device with the {@link android.hardware.camera2.CaptureRequest#CONTROL_AE_ANTIBANDING_MODE android.control.aeAntibandingMode} control.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#CONTROL_AE_ANTIBANDING_MODE android.control.aeAntibandingMode}</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_AE_ANTIBANDING_MODE */ CONTROL_AE_AVAILABLE_ANTIBANDING_MODES : "null", /** <p>List of auto-exposure modes for {@link android.hardware.camera2.CaptureRequest#CONTROL_AE_MODE android.control.aeMode} that are supported by this camera device.</p> <p>Not all the auto-exposure modes may be supported by a given camera device, especially if no flash unit is available. This entry lists the valid modes for {@link android.hardware.camera2.CaptureRequest#CONTROL_AE_MODE android.control.aeMode} for this camera device.</p> <p>All camera devices support ON, and all camera devices with flash units support ON_AUTO_FLASH and ON_ALWAYS_FLASH.</p> <p>FULL mode camera devices always support OFF mode, which enables application control of camera exposure time, sensitivity, and frame duration.</p> <p>LEGACY mode camera devices never support OFF mode. LIMITED mode devices support OFF if they support the MANUAL_SENSOR capability.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#CONTROL_AE_MODE android.control.aeMode}</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_AE_MODE */ CONTROL_AE_AVAILABLE_MODES : "null", /** <p>List of frame rate ranges for {@link android.hardware.camera2.CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE android.control.aeTargetFpsRange} supported by this camera device.</p> <p>For devices at the LEGACY level or above:</p> <ul> <li> <p>For constant-framerate recording, for each normal {@link android.media.CamcorderProfile CamcorderProfile}, that is, a {@link android.media.CamcorderProfile CamcorderProfile} that has {@link android.media.CamcorderProfile#quality quality} in the range [{@link android.media.CamcorderProfile#QUALITY_LOW QUALITY_LOW}, {@link android.media.CamcorderProfile#QUALITY_2160P QUALITY_2160P}], if the profile is supported by the device and has {@link android.media.CamcorderProfile#videoFrameRate videoFrameRate} <code>x</code>, this list will always include (<code>x</code>,<code>x</code>).</p> </li> <li> <p>Also, a camera device must either not support any {@link android.media.CamcorderProfile CamcorderProfile}, or support at least one normal {@link android.media.CamcorderProfile CamcorderProfile} that has {@link android.media.CamcorderProfile#videoFrameRate videoFrameRate} <code>x</code> >= 24.</p> </li> </ul> <p>For devices at the LIMITED level or above:</p> <ul> <li>For YUV_420_888 burst capture use case, this list will always include (<code>min</code>, <code>max</code>) and (<code>max</code>, <code>max</code>) where <code>min</code> <= 15 and <code>max</code> = the maximum output frame rate of the maximum YUV_420_888 output size.</li> </ul> <p><b>Units</b>: Frames per second (FPS)</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE */ CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES : "null", /** <p>Maximum and minimum exposure compensation values for {@link android.hardware.camera2.CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION android.control.aeExposureCompensation}, in counts of {@link android.hardware.camera2.CameraCharacteristics#CONTROL_AE_COMPENSATION_STEP android.control.aeCompensationStep}, that are supported by this camera device.</p> <p><b>Range of valid values:</b><br></p> <p>Range [0,0] indicates that exposure compensation is not supported.</p> <p>For LIMITED and FULL devices, range must follow below requirements if exposure compensation is supported (<code>range != [0, 0]</code>):</p> <p><code>Min.exposure compensation * {@link android.hardware.camera2.CameraCharacteristics#CONTROL_AE_COMPENSATION_STEP android.control.aeCompensationStep} <= -2 EV</code></p> <p><code>Max.exposure compensation * {@link android.hardware.camera2.CameraCharacteristics#CONTROL_AE_COMPENSATION_STEP android.control.aeCompensationStep} >= 2 EV</code></p> <p>LEGACY devices may support a smaller range than this.</p> <p>This key is available on all devices.</p> @see CameraCharacteristics#CONTROL_AE_COMPENSATION_STEP @see CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION */ CONTROL_AE_COMPENSATION_RANGE : "null", /** <p>Smallest step by which the exposure compensation can be changed.</p> <p>This is the unit for {@link android.hardware.camera2.CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION android.control.aeExposureCompensation}. For example, if this key has a value of <code>1/2</code>, then a setting of <code>-2</code> for {@link android.hardware.camera2.CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION android.control.aeExposureCompensation} means that the target EV offset for the auto-exposure routine is -1 EV.</p> <p>One unit of EV compensation changes the brightness of the captured image by a factor of two. +1 EV doubles the image brightness, while -1 EV halves the image brightness.</p> <p><b>Units</b>: Exposure Value (EV)</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_AE_EXPOSURE_COMPENSATION */ CONTROL_AE_COMPENSATION_STEP : "null", /** <p>List of auto-focus (AF) modes for {@link android.hardware.camera2.CaptureRequest#CONTROL_AF_MODE android.control.afMode} that are supported by this camera device.</p> <p>Not all the auto-focus modes may be supported by a given camera device. This entry lists the valid modes for {@link android.hardware.camera2.CaptureRequest#CONTROL_AF_MODE android.control.afMode} for this camera device.</p> <p>All LIMITED and FULL mode camera devices will support OFF mode, and all camera devices with adjustable focuser units (<code>{@link android.hardware.camera2.CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance} > 0</code>) will support AUTO mode.</p> <p>LEGACY devices will support OFF mode only if they support focusing to infinity (by also setting {@link android.hardware.camera2.CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance} to <code>0.0f</code>).</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#CONTROL_AF_MODE android.control.afMode}</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_AF_MODE @see CaptureRequest#LENS_FOCUS_DISTANCE @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE */ CONTROL_AF_AVAILABLE_MODES : "null", /** <p>List of color effects for {@link android.hardware.camera2.CaptureRequest#CONTROL_EFFECT_MODE android.control.effectMode} that are supported by this camera device.</p> <p>This list contains the color effect modes that can be applied to images produced by the camera device. Implementations are not expected to be consistent across all devices. If no color effect modes are available for a device, this will only list OFF.</p> <p>A color effect will only be applied if {@link android.hardware.camera2.CaptureRequest#CONTROL_MODE android.control.mode} != OFF. OFF is always included in this list.</p> <p>This control has no effect on the operation of other control routines such as auto-exposure, white balance, or focus.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#CONTROL_EFFECT_MODE android.control.effectMode}</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_EFFECT_MODE @see CaptureRequest#CONTROL_MODE */ CONTROL_AVAILABLE_EFFECTS : "null", /** <p>List of scene modes for {@link android.hardware.camera2.CaptureRequest#CONTROL_SCENE_MODE android.control.sceneMode} that are supported by this camera device.</p> <p>This list contains scene modes that can be set for the camera device. Only scene modes that have been fully implemented for the camera device may be included here. Implementations are not expected to be consistent across all devices.</p> <p>If no scene modes are supported by the camera device, this will be set to DISABLED. Otherwise DISABLED will not be listed.</p> <p>FACE_PRIORITY is always listed if face detection is supported (i.e.<code>{@link android.hardware.camera2.CameraCharacteristics#STATISTICS_INFO_MAX_FACE_COUNT android.statistics.info.maxFaceCount} > 0</code>).</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#CONTROL_SCENE_MODE android.control.sceneMode}</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_SCENE_MODE @see CameraCharacteristics#STATISTICS_INFO_MAX_FACE_COUNT */ CONTROL_AVAILABLE_SCENE_MODES : "null", /** <p>List of video stabilization modes for {@link android.hardware.camera2.CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE android.control.videoStabilizationMode} that are supported by this camera device.</p> <p>OFF will always be listed.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE android.control.videoStabilizationMode}</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE */ CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES : "null", /** <p>List of auto-white-balance modes for {@link android.hardware.camera2.CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} that are supported by this camera device.</p> <p>Not all the auto-white-balance modes may be supported by a given camera device. This entry lists the valid modes for {@link android.hardware.camera2.CaptureRequest#CONTROL_AWB_MODE android.control.awbMode} for this camera device.</p> <p>All camera devices will support ON mode.</p> <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always support OFF mode, which enables application control of white balance, by using {@link android.hardware.camera2.CaptureRequest#COLOR_CORRECTION_TRANSFORM android.colorCorrection.transform} and {@link android.hardware.camera2.CaptureRequest#COLOR_CORRECTION_GAINS android.colorCorrection.gains}({@link android.hardware.camera2.CaptureRequest#COLOR_CORRECTION_MODE android.colorCorrection.mode} must be set to TRANSFORM_MATRIX). This includes all FULL mode camera devices.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#CONTROL_AWB_MODE android.control.awbMode}</p> <p>This key is available on all devices.</p> @see CaptureRequest#COLOR_CORRECTION_GAINS @see CaptureRequest#COLOR_CORRECTION_MODE @see CaptureRequest#COLOR_CORRECTION_TRANSFORM @see CaptureRequest#CONTROL_AWB_MODE */ CONTROL_AWB_AVAILABLE_MODES : "null", /** <p>List of the maximum number of regions that can be used for metering in auto-exposure (AE), auto-white balance (AWB), and auto-focus (AF); this corresponds to the the maximum number of elements in {@link android.hardware.camera2.CaptureRequest#CONTROL_AE_REGIONS android.control.aeRegions}, {@link android.hardware.camera2.CaptureRequest#CONTROL_AWB_REGIONS android.control.awbRegions}, and {@link android.hardware.camera2.CaptureRequest#CONTROL_AF_REGIONS android.control.afRegions}.</p> <p><b>Range of valid values:</b><br></p> <p>Value must be >= 0 for each element. For full-capability devices this value must be >= 1 for AE and AF. The order of the elements is: <code>(AE, AWB, AF)</code>.</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_AE_REGIONS @see CaptureRequest#CONTROL_AF_REGIONS @see CaptureRequest#CONTROL_AWB_REGIONS @hide */ CONTROL_MAX_REGIONS : "null", /** <p>The maximum number of metering regions that can be used by the auto-exposure (AE) routine.</p> <p>This corresponds to the the maximum allowed number of elements in {@link android.hardware.camera2.CaptureRequest#CONTROL_AE_REGIONS android.control.aeRegions}.</p> <p><b>Range of valid values:</b><br> Value will be >= 0. For FULL-capability devices, this value will be >= 1.</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_AE_REGIONS */ CONTROL_MAX_REGIONS_AE : "null", /** <p>The maximum number of metering regions that can be used by the auto-white balance (AWB) routine.</p> <p>This corresponds to the the maximum allowed number of elements in {@link android.hardware.camera2.CaptureRequest#CONTROL_AWB_REGIONS android.control.awbRegions}.</p> <p><b>Range of valid values:</b><br> Value will be >= 0.</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_AWB_REGIONS */ CONTROL_MAX_REGIONS_AWB : "null", /** <p>The maximum number of metering regions that can be used by the auto-focus (AF) routine.</p> <p>This corresponds to the the maximum allowed number of elements in {@link android.hardware.camera2.CaptureRequest#CONTROL_AF_REGIONS android.control.afRegions}.</p> <p><b>Range of valid values:</b><br> Value will be >= 0. For FULL-capability devices, this value will be >= 1.</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_AF_REGIONS */ CONTROL_MAX_REGIONS_AF : "null", /** <p>List of available high speed video size, fps range and max batch size configurations supported by the camera device, in the format of (width, height, fps_min, fps_max, batch_size_max).</p> <p>When CONSTRAINED_HIGH_SPEED_VIDEO is supported in {@link android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities}, this metadata will list the supported high speed video size, fps range and max batch size configurations. All the sizes listed in this configuration will be a subset of the sizes reported by {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes } for processed non-stalling formats.</p> <p>For the high speed video use case, the application must select the video size and fps range from this metadata to configure the recording and preview streams and setup the recording requests. For example, if the application intends to do high speed recording, it can select the maximum size reported by this metadata to configure output streams. Once the size is selected, application can filter this metadata by selected size and get the supported fps ranges, and use these fps ranges to setup the recording requests. Note that for the use case of multiple output streams, application must select one unique size from this metadata to use (e.g., preview and recording streams must have the same size). Otherwise, the high speed capture session creation will fail.</p> <p>The min and max fps will be multiple times of 30fps.</p> <p>High speed video streaming extends significant performance pressue to camera hardware, to achieve efficient high speed streaming, the camera device may have to aggregate multiple frames together and send to camera device for processing where the request controls are same for all the frames in this batch. Max batch size indicates the max possible number of frames the camera device will group together for this high speed stream configuration. This max batch size will be used to generate a high speed recording request list by {@link android.hardware.camera2.CameraConstrainedHighSpeedCaptureSession#createHighSpeedRequestList }. The max batch size for each configuration will satisfy below conditions:</p> <ul> <li>Each max batch size will be a divisor of its corresponding fps_max / 30. For example, if max_fps is 300, max batch size will only be 1, 2, 5, or 10.</li> <li>The camera device may choose smaller internal batch size for each configuration, but the actual batch size will be a divisor of max batch size. For example, if the max batch size is 8, the actual batch size used by camera device will only be 1, 2, 4, or 8.</li> <li>The max batch size in each configuration entry must be no larger than 32.</li> </ul> <p>The camera device doesn't have to support batch mode to achieve high speed video recording, in such case, batch_size_max will be reported as 1 in each configuration entry.</p> <p>This fps ranges in this configuration list can only be used to create requests that are submitted to a high speed camera capture session created by {@link android.hardware.camera2.CameraDevice#createConstrainedHighSpeedCaptureSession }. The fps ranges reported in this metadata must not be used to setup capture requests for normal capture session, or it will cause request error.</p> <p><b>Range of valid values:</b><br></p> <p>For each configuration, the fps_max >= 120fps.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES @hide */ CONTROL_AVAILABLE_HIGH_SPEED_VIDEO_CONFIGURATIONS : "null", /** <p>Whether the camera device supports {@link android.hardware.camera2.CaptureRequest#CONTROL_AE_LOCK android.control.aeLock}</p> <p>Devices with MANUAL_SENSOR capability or BURST_CAPTURE capability will always list <code>true</code>. This includes FULL devices.</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_AE_LOCK */ CONTROL_AE_LOCK_AVAILABLE : "null", /** <p>Whether the camera device supports {@link android.hardware.camera2.CaptureRequest#CONTROL_AWB_LOCK android.control.awbLock}</p> <p>Devices with MANUAL_POST_PROCESSING capability or BURST_CAPTURE capability will always list <code>true</code>. This includes FULL devices.</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_AWB_LOCK */ CONTROL_AWB_LOCK_AVAILABLE : "null", /** <p>List of control modes for {@link android.hardware.camera2.CaptureRequest#CONTROL_MODE android.control.mode} that are supported by this camera device.</p> <p>This list contains control modes that can be set for the camera device. LEGACY mode devices will always support AUTO mode. LIMITED and FULL devices will always support OFF, AUTO modes.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#CONTROL_MODE android.control.mode}</p> <p>This key is available on all devices.</p> @see CaptureRequest#CONTROL_MODE */ CONTROL_AVAILABLE_MODES : "null", /** <p>Range of boosts for {@link android.hardware.camera2.CaptureRequest#CONTROL_POST_RAW_SENSITIVITY_BOOST android.control.postRawSensitivityBoost} supported by this camera device.</p> <p>Devices support post RAW sensitivity boost will advertise {@link android.hardware.camera2.CaptureRequest#CONTROL_POST_RAW_SENSITIVITY_BOOST android.control.postRawSensitivityBoost} key for controling post RAW sensitivity boost.</p> <p>This key will be <code>null</code> for devices that do not support any RAW format outputs. For devices that do support RAW format outputs, this key will always present, and if a device does not support post RAW sensitivity boost, it will list <code>(100, 100)</code> in this key.</p> <p><b>Units</b>: ISO arithmetic units, the same as {@link android.hardware.camera2.CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see CaptureRequest#CONTROL_POST_RAW_SENSITIVITY_BOOST @see CaptureRequest#SENSOR_SENSITIVITY */ CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE : "null", /** <p>List of edge enhancement modes for {@link android.hardware.camera2.CaptureRequest#EDGE_MODE android.edge.mode} that are supported by this camera device.</p> <p>Full-capability camera devices must always support OFF; camera devices that support YUV_REPROCESSING or PRIVATE_REPROCESSING will list ZERO_SHUTTER_LAG; all devices will list FAST.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#EDGE_MODE android.edge.mode}</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Full capability</b> - Present on all camera devices that report being {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CaptureRequest#EDGE_MODE @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL */ EDGE_AVAILABLE_EDGE_MODES : "null", /** <p>Whether this camera device has a flash unit.</p> <p>Will be <code>false</code> if no flash is available.</p> <p>If there is no flash unit, none of the flash controls do anything. This key is available on all devices.</p> */ FLASH_INFO_AVAILABLE : "null", /** <p>List of hot pixel correction modes for {@link android.hardware.camera2.CaptureRequest#HOT_PIXEL_MODE android.hotPixel.mode} that are supported by this camera device.</p> <p>FULL mode camera devices will always support FAST.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#HOT_PIXEL_MODE android.hotPixel.mode}</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see CaptureRequest#HOT_PIXEL_MODE */ HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES : "null", /** <p>List of JPEG thumbnail sizes for {@link android.hardware.camera2.CaptureRequest#JPEG_THUMBNAIL_SIZE android.jpeg.thumbnailSize} supported by this camera device.</p> <p>This list will include at least one non-zero resolution, plus <code>(0,0)</code> for indicating no thumbnail should be generated.</p> <p>Below condiditions will be satisfied for this size list:</p> <ul> <li>The sizes will be sorted by increasing pixel area (width x height). If several resolutions have the same area, they will be sorted by increasing width.</li> <li>The aspect ratio of the largest thumbnail size will be same as the aspect ratio of largest JPEG output size in android.scaler.availableStreamConfigurations. The largest size is defined as the size that has the largest pixel area in a given size list.</li> <li>Each output JPEG size in android.scaler.availableStreamConfigurations will have at least one corresponding size that has the same aspect ratio in availableThumbnailSizes, and vice versa.</li> <li>All non-<code>(0, 0)</code> sizes will have non-zero widths and heights.</li> </ul> <p>This list is also used as supported thumbnail sizes for HEIC image format capture.</p> <p>This key is available on all devices.</p> @see CaptureRequest#JPEG_THUMBNAIL_SIZE */ JPEG_AVAILABLE_THUMBNAIL_SIZES : "null", /** <p>List of aperture size values for {@link android.hardware.camera2.CaptureRequest#LENS_APERTURE android.lens.aperture} that are supported by this camera device.</p> <p>If the camera device doesn't support a variable lens aperture, this list will contain only one value, which is the fixed aperture size.</p> <p>If the camera device supports a variable aperture, the aperture values in this list will be sorted in ascending order.</p> <p><b>Units</b>: The aperture f-number</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Full capability</b> - Present on all camera devices that report being {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CaptureRequest#LENS_APERTURE */ LENS_INFO_AVAILABLE_APERTURES : "null", /** <p>List of neutral density filter values for {@link android.hardware.camera2.CaptureRequest#LENS_FILTER_DENSITY android.lens.filterDensity} that are supported by this camera device.</p> <p>If a neutral density filter is not supported by this camera device, this list will contain only 0. Otherwise, this list will include every filter density supported by the camera device, in ascending order.</p> <p><b>Units</b>: Exposure value (EV)</p> <p><b>Range of valid values:</b><br></p> <p>Values are >= 0</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Full capability</b> - Present on all camera devices that report being {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CaptureRequest#LENS_FILTER_DENSITY */ LENS_INFO_AVAILABLE_FILTER_DENSITIES : "null", /** <p>List of focal lengths for {@link android.hardware.camera2.CaptureRequest#LENS_FOCAL_LENGTH android.lens.focalLength} that are supported by this camera device.</p> <p>If optical zoom is not supported, this list will only contain a single value corresponding to the fixed focal length of the device. Otherwise, this list will include every focal length supported by the camera device, in ascending order.</p> <p><b>Units</b>: Millimeters</p> <p><b>Range of valid values:</b><br></p> <p>Values are > 0</p> <p>This key is available on all devices.</p> @see CaptureRequest#LENS_FOCAL_LENGTH */ LENS_INFO_AVAILABLE_FOCAL_LENGTHS : "null", /** <p>List of optical image stabilization (OIS) modes for {@link android.hardware.camera2.CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE android.lens.opticalStabilizationMode} that are supported by this camera device.</p> <p>If OIS is not supported by a given camera device, this list will contain only OFF.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE android.lens.opticalStabilizationMode}</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CaptureRequest#LENS_OPTICAL_STABILIZATION_MODE */ LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION : "null", /** <p>Hyperfocal distance for this lens.</p> <p>If the lens is not fixed focus, the camera device will report this field when {@link android.hardware.camera2.CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION android.lens.info.focusDistanceCalibration} is APPROXIMATE or CALIBRATED.</p> <p><b>Units</b>: See {@link android.hardware.camera2.CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION android.lens.info.focusDistanceCalibration} for details</p> <p><b>Range of valid values:</b><br> If lens is fixed focus, >= 0. If lens has focuser unit, the value is within <code>(0.0f, {@link android.hardware.camera2.CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance}]</code></p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE */ LENS_INFO_HYPERFOCAL_DISTANCE : "null", /** <p>Shortest distance from frontmost surface of the lens that can be brought into sharp focus.</p> <p>If the lens is fixed-focus, this will be 0.</p> <p><b>Units</b>: See {@link android.hardware.camera2.CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION android.lens.info.focusDistanceCalibration} for details</p> <p><b>Range of valid values:</b><br> >= 0</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION */ LENS_INFO_MINIMUM_FOCUS_DISTANCE : "null", /** <p>Dimensions of lens shading map.</p> <p>The map should be on the order of 30-40 rows and columns, and must be smaller than 64x64.</p> <p><b>Range of valid values:</b><br> Both values >= 1</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Full capability</b> - Present on all camera devices that report being {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @hide */ LENS_INFO_SHADING_MAP_SIZE : "null", /** <p>The lens focus distance calibration quality.</p> <p>The lens focus distance calibration quality determines the reliability of focus related metadata entries, i.e. {@link android.hardware.camera2.CaptureRequest#LENS_FOCUS_DISTANCE android.lens.focusDistance}, {@link android.hardware.camera2.CaptureResult#LENS_FOCUS_RANGE android.lens.focusRange}, {@link android.hardware.camera2.CameraCharacteristics#LENS_INFO_HYPERFOCAL_DISTANCE android.lens.info.hyperfocalDistance}, and {@link android.hardware.camera2.CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance}.</p> <p>APPROXIMATE and CALIBRATED devices report the focus metadata in units of diopters (1/meter), so <code>0.0f</code> represents focusing at infinity, and increasing positive numbers represent focusing closer and closer to the camera device. The focus distance control also uses diopters on these devices.</p> <p>UNCALIBRATED devices do not use units that are directly comparable to any real physical measurement, but <code>0.0f</code> still represents farthest focus, and {@link android.hardware.camera2.CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE android.lens.info.minimumFocusDistance} represents the nearest focus the device can achieve.</p> <p><b>Possible values:</b> <ul> <li>{@link #LENS_INFO_FOCUS_DISTANCE_CALIBRATION_UNCALIBRATED UNCALIBRATED}</li> <li>{@link #LENS_INFO_FOCUS_DISTANCE_CALIBRATION_APPROXIMATE APPROXIMATE}</li> <li>{@link #LENS_INFO_FOCUS_DISTANCE_CALIBRATION_CALIBRATED CALIBRATED}</li> </ul></p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CaptureRequest#LENS_FOCUS_DISTANCE @see CaptureResult#LENS_FOCUS_RANGE @see CameraCharacteristics#LENS_INFO_HYPERFOCAL_DISTANCE @see CameraCharacteristics#LENS_INFO_MINIMUM_FOCUS_DISTANCE @see #LENS_INFO_FOCUS_DISTANCE_CALIBRATION_UNCALIBRATED @see #LENS_INFO_FOCUS_DISTANCE_CALIBRATION_APPROXIMATE @see #LENS_INFO_FOCUS_DISTANCE_CALIBRATION_CALIBRATED */ LENS_INFO_FOCUS_DISTANCE_CALIBRATION : "null", /** <p>Direction the camera faces relative to device screen.</p> <p><b>Possible values:</b> <ul> <li>{@link #LENS_FACING_FRONT FRONT}</li> <li>{@link #LENS_FACING_BACK BACK}</li> <li>{@link #LENS_FACING_EXTERNAL EXTERNAL}</li> </ul></p> <p>This key is available on all devices.</p> @see #LENS_FACING_FRONT @see #LENS_FACING_BACK @see #LENS_FACING_EXTERNAL */ LENS_FACING : "null", /** <p>The orientation of the camera relative to the sensor coordinate system.</p> <p>The four coefficients that describe the quaternion rotation from the Android sensor coordinate system to a camera-aligned coordinate system where the X-axis is aligned with the long side of the image sensor, the Y-axis is aligned with the short side of the image sensor, and the Z-axis is aligned with the optical axis of the sensor.</p> <p>To convert from the quaternion coefficients <code>(x,y,z,w)</code> to the axis of rotation <code>(a_x, a_y, a_z)</code> and rotation amount <code>theta</code>, the following formulas can be used:</p> <pre><code> theta = 2 * acos(w) a_x = x / sin(theta/2) a_y = y / sin(theta/2) a_z = z / sin(theta/2) </code></pre> <p>To create a 3x3 rotation matrix that applies the rotation defined by this quaternion, the following matrix can be used:</p> <pre><code>R = [ 1 - 2y^2 - 2z^2, 2xy - 2zw, 2xz + 2yw, 2xy + 2zw, 1 - 2x^2 - 2z^2, 2yz - 2xw, 2xz - 2yw, 2yz + 2xw, 1 - 2x^2 - 2y^2 ] </code></pre> <p>This matrix can then be used to apply the rotation to a column vector point with</p> <p><code>p' = Rp</code></p> <p>where <code>p</code> is in the device sensor coordinate system, and <code>p'</code> is in the camera-oriented coordinate system.</p> <p><b>Units</b>: Quaternion coefficients</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> */ LENS_POSE_ROTATION : "null", /** <p>Position of the camera optical center.</p> <p>The position of the camera device's lens optical center, as a three-dimensional vector <code>(x,y,z)</code>.</p> <p>Prior to Android P, or when {@link android.hardware.camera2.CameraCharacteristics#LENS_POSE_REFERENCE android.lens.poseReference} is PRIMARY_CAMERA, this position is relative to the optical center of the largest camera device facing in the same direction as this camera, in the {@link android.hardware.SensorEvent Android sensor coordinate axes}. Note that only the axis definitions are shared with the sensor coordinate system, but not the origin.</p> <p>If this device is the largest or only camera device with a given facing, then this position will be <code>(0, 0, 0)</code>; a camera device with a lens optical center located 3 cm from the main sensor along the +X axis (to the right from the user's perspective) will report <code>(0.03, 0, 0)</code>. Note that this means that, for many computer vision applications, the position needs to be negated to convert it to a translation from the camera to the origin.</p> <p>To transform a pixel coordinates between two cameras facing the same direction, first the source camera {@link android.hardware.camera2.CameraCharacteristics#LENS_DISTORTION android.lens.distortion} must be corrected for. Then the source camera {@link android.hardware.camera2.CameraCharacteristics#LENS_INTRINSIC_CALIBRATION android.lens.intrinsicCalibration} needs to be applied, followed by the {@link android.hardware.camera2.CameraCharacteristics#LENS_POSE_ROTATION android.lens.poseRotation} of the source camera, the translation of the source camera relative to the destination camera, the {@link android.hardware.camera2.CameraCharacteristics#LENS_POSE_ROTATION android.lens.poseRotation} of the destination camera, and finally the inverse of {@link android.hardware.camera2.CameraCharacteristics#LENS_INTRINSIC_CALIBRATION android.lens.intrinsicCalibration} of the destination camera. This obtains a radial-distortion-free coordinate in the destination camera pixel coordinates.</p> <p>To compare this against a real image from the destination camera, the destination camera image then needs to be corrected for radial distortion before comparison or sampling.</p> <p>When {@link android.hardware.camera2.CameraCharacteristics#LENS_POSE_REFERENCE android.lens.poseReference} is GYROSCOPE, then this position is relative to the center of the primary gyroscope on the device. The axis definitions are the same as with PRIMARY_CAMERA.</p> <p><b>Units</b>: Meters</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#LENS_DISTORTION @see CameraCharacteristics#LENS_INTRINSIC_CALIBRATION @see CameraCharacteristics#LENS_POSE_REFERENCE @see CameraCharacteristics#LENS_POSE_ROTATION */ LENS_POSE_TRANSLATION : "null", /** <p>The parameters for this camera device's intrinsic calibration.</p> <p>The five calibration parameters that describe the transform from camera-centric 3D coordinates to sensor pixel coordinates:</p> <pre><code>[f_x, f_y, c_x, c_y, s] </code></pre> <p>Where <code>f_x</code> and <code>f_y</code> are the horizontal and vertical focal lengths, <code>[c_x, c_y]</code> is the position of the optical axis, and <code>s</code> is a skew parameter for the sensor plane not being aligned with the lens plane.</p> <p>These are typically used within a transformation matrix K:</p> <pre><code>K = [ f_x, s, c_x, 0, f_y, c_y, 0 0, 1 ] </code></pre> <p>which can then be combined with the camera pose rotation <code>R</code> and translation <code>t</code> ({@link android.hardware.camera2.CameraCharacteristics#LENS_POSE_ROTATION android.lens.poseRotation} and {@link android.hardware.camera2.CameraCharacteristics#LENS_POSE_TRANSLATION android.lens.poseTranslation}, respectively) to calculate the complete transform from world coordinates to pixel coordinates:</p> <pre><code>P = [ K 0 * [ R -Rt 0 1 ] 0 1 ] </code></pre> <p>(Note the negation of poseTranslation when mapping from camera to world coordinates, and multiplication by the rotation).</p> <p>With <code>p_w</code> being a point in the world coordinate system and <code>p_s</code> being a point in the camera active pixel array coordinate system, and with the mapping including the homogeneous division by z:</p> <pre><code> p_h = (x_h, y_h, z_h) = P p_w p_s = p_h / z_h </code></pre> <p>so <code>[x_s, y_s]</code> is the pixel coordinates of the world point, <code>z_s = 1</code>, and <code>w_s</code> is a measurement of disparity (depth) in pixel coordinates.</p> <p>Note that the coordinate system for this transform is the {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize} system, where <code>(0,0)</code> is the top-left of the preCorrectionActiveArraySize rectangle. Once the pose and intrinsic calibration transforms have been applied to a world point, then the {@link android.hardware.camera2.CameraCharacteristics#LENS_DISTORTION android.lens.distortion} transform needs to be applied, and the result adjusted to be in the {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize} coordinate system (where <code>(0, 0)</code> is the top-left of the activeArraySize rectangle), to determine the final pixel coordinate of the world point for processed (non-RAW) output buffers.</p> <p>For camera devices, the center of pixel <code>(x,y)</code> is located at coordinate <code>(x + 0.5, y + 0.5)</code>. So on a device with a precorrection active array of size <code>(10,10)</code>, the valid pixel indices go from <code>(0,0)-(9,9)</code>, and an perfectly-built camera would have an optical center at the exact center of the pixel grid, at coordinates <code>(5.0, 5.0)</code>, which is the top-left corner of pixel <code>(5,5)</code>.</p> <p><b>Units</b>: Pixels in the {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize} coordinate system.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#LENS_DISTORTION @see CameraCharacteristics#LENS_POSE_ROTATION @see CameraCharacteristics#LENS_POSE_TRANSLATION @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE @see CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE */ LENS_INTRINSIC_CALIBRATION : "null", /** <p>The correction coefficients to correct for this camera device's radial and tangential lens distortion.</p> <p>Four radial distortion coefficients <code>[kappa_0, kappa_1, kappa_2, kappa_3]</code> and two tangential distortion coefficients <code>[kappa_4, kappa_5]</code> that can be used to correct the lens's geometric distortion with the mapping equations:</p> <pre><code> x_c = x_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) + kappa_4 * (2 * x_i * y_i) + kappa_5 * ( r^2 + 2 * x_i^2 ) y_c = y_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) + kappa_5 * (2 * x_i * y_i) + kappa_4 * ( r^2 + 2 * y_i^2 ) </code></pre> <p>Here, <code>[x_c, y_c]</code> are the coordinates to sample in the input image that correspond to the pixel values in the corrected image at the coordinate <code>[x_i, y_i]</code>:</p> <pre><code> correctedImage(x_i, y_i) = sample_at(x_c, y_c, inputImage) </code></pre> <p>The pixel coordinates are defined in a normalized coordinate system related to the {@link android.hardware.camera2.CameraCharacteristics#LENS_INTRINSIC_CALIBRATION android.lens.intrinsicCalibration} calibration fields. Both <code>[x_i, y_i]</code> and <code>[x_c, y_c]</code> have <code>(0,0)</code> at the lens optical center <code>[c_x, c_y]</code>. The maximum magnitudes of both x and y coordinates are normalized to be 1 at the edge further from the optical center, so the range for both dimensions is <code>-1 <= x <= 1</code>.</p> <p>Finally, <code>r</code> represents the radial distance from the optical center, <code>r^2 = x_i^2 + y_i^2</code>, and its magnitude is therefore no larger than <code>|r| <= sqrt(2)</code>.</p> <p>The distortion model used is the Brown-Conrady model.</p> <p><b>Units</b>: Unitless coefficients.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#LENS_INTRINSIC_CALIBRATION @deprecated <p>This field was inconsistently defined in terms of its normalization. Use {@link android.hardware.camera2.CameraCharacteristics#LENS_DISTORTION android.lens.distortion} instead.</p> @see CameraCharacteristics#LENS_DISTORTION */ LENS_RADIAL_DISTORTION : "null", /** <p>The origin for {@link android.hardware.camera2.CameraCharacteristics#LENS_POSE_TRANSLATION android.lens.poseTranslation}.</p> <p>Different calibration methods and use cases can produce better or worse results depending on the selected coordinate origin.</p> <p><b>Possible values:</b> <ul> <li>{@link #LENS_POSE_REFERENCE_PRIMARY_CAMERA PRIMARY_CAMERA}</li> <li>{@link #LENS_POSE_REFERENCE_GYROSCOPE GYROSCOPE}</li> </ul></p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#LENS_POSE_TRANSLATION @see #LENS_POSE_REFERENCE_PRIMARY_CAMERA @see #LENS_POSE_REFERENCE_GYROSCOPE */ LENS_POSE_REFERENCE : "null", /** <p>The correction coefficients to correct for this camera device's radial and tangential lens distortion.</p> <p>Replaces the deprecated {@link android.hardware.camera2.CameraCharacteristics#LENS_RADIAL_DISTORTION android.lens.radialDistortion} field, which was inconsistently defined.</p> <p>Three radial distortion coefficients <code>[kappa_1, kappa_2, kappa_3]</code> and two tangential distortion coefficients <code>[kappa_4, kappa_5]</code> that can be used to correct the lens's geometric distortion with the mapping equations:</p> <pre><code> x_c = x_i * ( 1 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) + kappa_4 * (2 * x_i * y_i) + kappa_5 * ( r^2 + 2 * x_i^2 ) y_c = y_i * ( 1 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) + kappa_5 * (2 * x_i * y_i) + kappa_4 * ( r^2 + 2 * y_i^2 ) </code></pre> <p>Here, <code>[x_c, y_c]</code> are the coordinates to sample in the input image that correspond to the pixel values in the corrected image at the coordinate <code>[x_i, y_i]</code>:</p> <pre><code> correctedImage(x_i, y_i) = sample_at(x_c, y_c, inputImage) </code></pre> <p>The pixel coordinates are defined in a coordinate system related to the {@link android.hardware.camera2.CameraCharacteristics#LENS_INTRINSIC_CALIBRATION android.lens.intrinsicCalibration} calibration fields; see that entry for details of the mapping stages. Both <code>[x_i, y_i]</code> and <code>[x_c, y_c]</code> have <code>(0,0)</code> at the lens optical center <code>[c_x, c_y]</code>, and the range of the coordinates depends on the focal length terms of the intrinsic calibration.</p> <p>Finally, <code>r</code> represents the radial distance from the optical center, <code>r^2 = x_i^2 + y_i^2</code>.</p> <p>The distortion model used is the Brown-Conrady model.</p> <p><b>Units</b>: Unitless coefficients.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#LENS_INTRINSIC_CALIBRATION @see CameraCharacteristics#LENS_RADIAL_DISTORTION */ LENS_DISTORTION : "null", /** <p>List of noise reduction modes for {@link android.hardware.camera2.CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode} that are supported by this camera device.</p> <p>Full-capability camera devices will always support OFF and FAST.</p> <p>Camera devices that support YUV_REPROCESSING or PRIVATE_REPROCESSING will support ZERO_SHUTTER_LAG.</p> <p>Legacy-capability camera devices will only support FAST mode.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode}</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CaptureRequest#NOISE_REDUCTION_MODE */ NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES : "null", /** <p>If set to 1, the HAL will always split result metadata for a single capture into multiple buffers, returned using multiple process_capture_result calls.</p> <p>Does not need to be listed in static metadata. Support for partial results will be reworked in future versions of camera service. This quirk will stop working at that point; DO NOT USE without careful consideration of future support.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @deprecated <p>Not used in HALv3 or newer; replaced by better partials mechanism</p> @hide */ QUIRKS_USE_PARTIAL_RESULT : "null", /** <p>The maximum numbers of different types of output streams that can be configured and used simultaneously by a camera device.</p> <p>This is a 3 element tuple that contains the max number of output simultaneous streams for raw sensor, processed (but not stalling), and processed (and stalling) formats respectively. For example, assuming that JPEG is typically a processed and stalling stream, if max raw sensor format output stream number is 1, max YUV streams number is 3, and max JPEG stream number is 2, then this tuple should be <code>(1, 3, 2)</code>.</p> <p>This lists the upper bound of the number of output streams supported by the camera device. Using more streams simultaneously may require more hardware and CPU resources that will consume more power. The image format for an output stream can be any supported format provided by android.scaler.availableStreamConfigurations. The formats defined in android.scaler.availableStreamConfigurations can be catergorized into the 3 stream types as below:</p> <ul> <li>Processed (but stalling): any non-RAW format with a stallDurations > 0. Typically {@link android.graphics.ImageFormat#JPEG JPEG format}.</li> <li>Raw formats: {@link android.graphics.ImageFormat#RAW_SENSOR RAW_SENSOR}, {@link android.graphics.ImageFormat#RAW10 RAW10}, or {@link android.graphics.ImageFormat#RAW12 RAW12}.</li> <li>Processed (but not-stalling): any non-RAW format without a stall duration. Typically {@link android.graphics.ImageFormat#YUV_420_888 YUV_420_888}, {@link android.graphics.ImageFormat#NV21 NV21}, {@link android.graphics.ImageFormat#YV12 YV12}, or {@link android.graphics.ImageFormat#Y8 Y8} .</li> </ul> <p><b>Range of valid values:</b><br></p> <p>For processed (and stalling) format streams, >= 1.</p> <p>For Raw format (either stalling or non-stalling) streams, >= 0.</p> <p>For processed (but not stalling) format streams, >= 3 for FULL mode devices (<code>{@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} == FULL</code>); >= 2 for LIMITED mode devices (<code>{@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} == LIMITED</code>).</p> <p>This key is available on all devices.</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @hide */ REQUEST_MAX_NUM_OUTPUT_STREAMS : "null", /** <p>The maximum numbers of different types of output streams that can be configured and used simultaneously by a camera device for any <code>RAW</code> formats.</p> <p>This value contains the max number of output simultaneous streams from the raw sensor.</p> <p>This lists the upper bound of the number of output streams supported by the camera device. Using more streams simultaneously may require more hardware and CPU resources that will consume more power. The image format for this kind of an output stream can be any <code>RAW</code> and supported format provided by {@link android.hardware.camera2.CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap}.</p> <p>In particular, a <code>RAW</code> format is typically one of:</p> <ul> <li>{@link android.graphics.ImageFormat#RAW_SENSOR RAW_SENSOR}</li> <li>{@link android.graphics.ImageFormat#RAW10 RAW10}</li> <li>{@link android.graphics.ImageFormat#RAW12 RAW12}</li> </ul> <p>LEGACY mode devices ({@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} <code>==</code> LEGACY) never support raw streams.</p> <p><b>Range of valid values:</b><br></p> <p>>= 0</p> <p>This key is available on all devices.</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP */ REQUEST_MAX_NUM_OUTPUT_RAW : "null", /** <p>The maximum numbers of different types of output streams that can be configured and used simultaneously by a camera device for any processed (but not-stalling) formats.</p> <p>This value contains the max number of output simultaneous streams for any processed (but not-stalling) formats.</p> <p>This lists the upper bound of the number of output streams supported by the camera device. Using more streams simultaneously may require more hardware and CPU resources that will consume more power. The image format for this kind of an output stream can be any non-<code>RAW</code> and supported format provided by {@link android.hardware.camera2.CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap}.</p> <p>Processed (but not-stalling) is defined as any non-RAW format without a stall duration. Typically:</p> <ul> <li>{@link android.graphics.ImageFormat#YUV_420_888 YUV_420_888}</li> <li>{@link android.graphics.ImageFormat#NV21 NV21}</li> <li>{@link android.graphics.ImageFormat#YV12 YV12}</li> <li>Implementation-defined formats, i.e. {@link android.hardware.camera2.params.StreamConfigurationMap#isOutputSupportedFor(Class) }</li> <li>{@link android.graphics.ImageFormat#Y8 Y8}</li> </ul> <p>For full guarantees, query {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputStallDuration } with a processed format -- it will return 0 for a non-stalling stream.</p> <p>LEGACY devices will support at least 2 processing/non-stalling streams.</p> <p><b>Range of valid values:</b><br></p> <p>>= 3 for FULL mode devices (<code>{@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} == FULL</code>); >= 2 for LIMITED mode devices (<code>{@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} == LIMITED</code>).</p> <p>This key is available on all devices.</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP */ REQUEST_MAX_NUM_OUTPUT_PROC : "null", /** <p>The maximum numbers of different types of output streams that can be configured and used simultaneously by a camera device for any processed (and stalling) formats.</p> <p>This value contains the max number of output simultaneous streams for any processed (but not-stalling) formats.</p> <p>This lists the upper bound of the number of output streams supported by the camera device. Using more streams simultaneously may require more hardware and CPU resources that will consume more power. The image format for this kind of an output stream can be any non-<code>RAW</code> and supported format provided by {@link android.hardware.camera2.CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP android.scaler.streamConfigurationMap}.</p> <p>A processed and stalling format is defined as any non-RAW format with a stallDurations > 0. Typically only the {@link android.graphics.ImageFormat#JPEG JPEG format} is a stalling format.</p> <p>For full guarantees, query {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputStallDuration } with a processed format -- it will return a non-0 value for a stalling stream.</p> <p>LEGACY devices will support up to 1 processing/stalling stream.</p> <p><b>Range of valid values:</b><br></p> <p>>= 1</p> <p>This key is available on all devices.</p> @see CameraCharacteristics#SCALER_STREAM_CONFIGURATION_MAP */ REQUEST_MAX_NUM_OUTPUT_PROC_STALLING : "null", /** <p>The maximum numbers of any type of input streams that can be configured and used simultaneously by a camera device.</p> <p>When set to 0, it means no input stream is supported.</p> <p>The image format for a input stream can be any supported format returned by {@link android.hardware.camera2.params.StreamConfigurationMap#getInputFormats }. When using an input stream, there must be at least one output stream configured to to receive the reprocessed images.</p> <p>When an input stream and some output streams are used in a reprocessing request, only the input buffer will be used to produce these output stream buffers, and a new sensor image will not be captured.</p> <p>For example, for Zero Shutter Lag (ZSL) still capture use case, the input stream image format will be PRIVATE, the associated output stream image format should be JPEG.</p> <p><b>Range of valid values:</b><br></p> <p>0 or 1.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Full capability</b> - Present on all camera devices that report being {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL */ REQUEST_MAX_NUM_INPUT_STREAMS : "null", /** <p>Specifies the number of maximum pipeline stages a frame has to go through from when it's exposed to when it's available to the framework.</p> <p>A typical minimum value for this is 2 (one stage to expose, one stage to readout) from the sensor. The ISP then usually adds its own stages to do custom HW processing. Further stages may be added by SW processing.</p> <p>Depending on what settings are used (e.g. YUV, JPEG) and what processing is enabled (e.g. face detection), the actual pipeline depth (specified by {@link android.hardware.camera2.CaptureResult#REQUEST_PIPELINE_DEPTH android.request.pipelineDepth}) may be less than the max pipeline depth.</p> <p>A pipeline depth of X stages is equivalent to a pipeline latency of X frame intervals.</p> <p>This value will normally be 8 or less, however, for high speed capture session, the max pipeline depth will be up to 8 x size of high speed capture request list.</p> <p>This key is available on all devices.</p> @see CaptureResult#REQUEST_PIPELINE_DEPTH */ REQUEST_PIPELINE_MAX_DEPTH : "null", /** <p>Defines how many sub-components a result will be composed of.</p> <p>In order to combat the pipeline latency, partial results may be delivered to the application layer from the camera device as soon as they are available.</p> <p>Optional; defaults to 1. A value of 1 means that partial results are not supported, and only the final TotalCaptureResult will be produced by the camera device.</p> <p>A typical use case for this might be: after requesting an auto-focus (AF) lock the new AF state might be available 50% of the way through the pipeline. The camera device could then immediately dispatch this state via a partial result to the application, and the rest of the metadata via later partial results.</p> <p><b>Range of valid values:</b><br> >= 1</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> */ REQUEST_PARTIAL_RESULT_COUNT : "null", /** <p>List of capabilities that this camera device advertises as fully supporting.</p> <p>A capability is a contract that the camera device makes in order to be able to satisfy one or more use cases.</p> <p>Listing a capability guarantees that the whole set of features required to support a common use will all be available.</p> <p>Using a subset of the functionality provided by an unsupported capability may be possible on a specific camera device implementation; to do this query each of android.request.availableRequestKeys, android.request.availableResultKeys, android.request.availableCharacteristicsKeys.</p> <p>The following capabilities are guaranteed to be available on {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} <code>==</code> FULL devices:</p> <ul> <li>MANUAL_SENSOR</li> <li>MANUAL_POST_PROCESSING</li> </ul> <p>Other capabilities may be available on either FULL or LIMITED devices, but the application should query this key to be sure.</p> <p><b>Possible values:</b> <ul> <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE BACKWARD_COMPATIBLE}</li> <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR MANUAL_SENSOR}</li> <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING MANUAL_POST_PROCESSING}</li> <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_RAW RAW}</li> <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING PRIVATE_REPROCESSING}</li> <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS READ_SENSOR_SETTINGS}</li> <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE BURST_CAPTURE}</li> <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_YUV_REPROCESSING YUV_REPROCESSING}</li> <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT DEPTH_OUTPUT}</li> <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_CONSTRAINED_HIGH_SPEED_VIDEO CONSTRAINED_HIGH_SPEED_VIDEO}</li> <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_MOTION_TRACKING MOTION_TRACKING}</li> <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_LOGICAL_MULTI_CAMERA LOGICAL_MULTI_CAMERA}</li> <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_MONOCHROME MONOCHROME}</li> <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_SECURE_IMAGE_DATA SECURE_IMAGE_DATA}</li> </ul></p> <p>This key is available on all devices.</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see #REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE @see #REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR @see #REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING @see #REQUEST_AVAILABLE_CAPABILITIES_RAW @see #REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING @see #REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS @see #REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE @see #REQUEST_AVAILABLE_CAPABILITIES_YUV_REPROCESSING @see #REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT @see #REQUEST_AVAILABLE_CAPABILITIES_CONSTRAINED_HIGH_SPEED_VIDEO @see #REQUEST_AVAILABLE_CAPABILITIES_MOTION_TRACKING @see #REQUEST_AVAILABLE_CAPABILITIES_LOGICAL_MULTI_CAMERA @see #REQUEST_AVAILABLE_CAPABILITIES_MONOCHROME @see #REQUEST_AVAILABLE_CAPABILITIES_SECURE_IMAGE_DATA */ REQUEST_AVAILABLE_CAPABILITIES : "null", /** <p>A list of all keys that the camera device has available to use with {@link android.hardware.camera2.CaptureRequest }.</p> <p>Attempting to set a key into a CaptureRequest that is not listed here will result in an invalid request and will be rejected by the camera device.</p> <p>This field can be used to query the feature set of a camera device at a more granular level than capabilities. This is especially important for optional keys that are not listed under any capability in {@link android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities}.</p> <p>This key is available on all devices.</p> @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES @hide */ REQUEST_AVAILABLE_REQUEST_KEYS : "null", /** <p>A list of all keys that the camera device has available to use with {@link android.hardware.camera2.CaptureResult }.</p> <p>Attempting to get a key from a CaptureResult that is not listed here will always return a <code>null</code> value. Getting a key from a CaptureResult that is listed here will generally never return a <code>null</code> value.</p> <p>The following keys may return <code>null</code> unless they are enabled:</p> <ul> <li>android.statistics.lensShadingMap (non-null iff {@link android.hardware.camera2.CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE android.statistics.lensShadingMapMode} == ON)</li> </ul> <p>(Those sometimes-null keys will nevertheless be listed here if they are available.)</p> <p>This field can be used to query the feature set of a camera device at a more granular level than capabilities. This is especially important for optional keys that are not listed under any capability in {@link android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities}.</p> <p>This key is available on all devices.</p> @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES @see CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE @hide */ REQUEST_AVAILABLE_RESULT_KEYS : "null", /** <p>A list of all keys that the camera device has available to use with {@link android.hardware.camera2.CameraCharacteristics }.</p> <p>This entry follows the same rules as android.request.availableResultKeys (except that it applies for CameraCharacteristics instead of CaptureResult). See above for more details.</p> <p>This key is available on all devices.</p> @hide */ REQUEST_AVAILABLE_CHARACTERISTICS_KEYS : "null", /** <p>A subset of the available request keys that the camera device can pass as part of the capture session initialization.</p> <p>This is a subset of android.request.availableRequestKeys which contains a list of keys that are difficult to apply per-frame and can result in unexpected delays when modified during the capture session lifetime. Typical examples include parameters that require a time-consuming hardware re-configuration or internal camera pipeline change. For performance reasons we advise clients to pass their initial values as part of {@link SessionConfiguration#setSessionParameters }. Once the camera capture session is enabled it is also recommended to avoid changing them from their initial values set in {@link SessionConfiguration#setSessionParameters }. Control over session parameters can still be exerted in capture requests but clients should be aware and expect delays during their application. An example usage scenario could look like this:</p> <ul> <li>The camera client starts by quering the session parameter key list via {@link android.hardware.camera2.CameraCharacteristics#getAvailableSessionKeys }.</li> <li>Before triggering the capture session create sequence, a capture request must be built via {@link android.hardware.camera2.CameraDevice#createCaptureRequest } using an appropriate template matching the particular use case.</li> <li>The client should go over the list of session parameters and check whether some of the keys listed matches with the parameters that they intend to modify as part of the first capture request.</li> <li>If there is no such match, the capture request can be passed unmodified to {@link SessionConfiguration#setSessionParameters }.</li> <li>If matches do exist, the client should update the respective values and pass the request to {@link SessionConfiguration#setSessionParameters }.</li> <li>After the capture session initialization completes the session parameter key list can continue to serve as reference when posting or updating further requests. As mentioned above further changes to session parameters should ideally be avoided, if updates are necessary however clients could expect a delay/glitch during the parameter switch.</li> </ul> <p>This key is available on all devices.</p> @hide */ REQUEST_AVAILABLE_SESSION_KEYS : "null", /** <p>A subset of the available request keys that can be overridden for physical devices backing a logical multi-camera.</p> <p>This is a subset of android.request.availableRequestKeys which contains a list of keys that can be overridden using {@link android.hardware.camera2.CaptureRequest.Builder#setPhysicalCameraKey }. The respective value of such request key can be obtained by calling {@link android.hardware.camera2.CaptureRequest.Builder#getPhysicalCameraKey }. Capture requests that contain individual physical device requests must be built via {@link android.hardware.camera2.CameraDevice#createCaptureRequest(int, Set)}.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @hide */ REQUEST_AVAILABLE_PHYSICAL_CAMERA_REQUEST_KEYS : "null", /** <p>A list of camera characteristics keys that are only available in case the camera client has camera permission.</p> <p>The entry contains a subset of {@link android.hardware.camera2.CameraCharacteristics#getKeys } that require camera clients to acquire the {@link android.Manifest.permission#CAMERA } permission before calling {@link android.hardware.camera2.CameraManager#getCameraCharacteristics }. If the permission is not held by the camera client, then the values of the repsective properties will not be present in {@link android.hardware.camera2.CameraCharacteristics }.</p> <p>This key is available on all devices.</p> @hide */ REQUEST_CHARACTERISTIC_KEYS_NEEDING_PERMISSION : "null", /** <p>The list of image formats that are supported by this camera device for output streams.</p> <p>All camera devices will support JPEG and YUV_420_888 formats.</p> <p>When set to YUV_420_888, application can access the YUV420 data directly.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @deprecated <p>Not used in HALv3 or newer</p> @hide */ SCALER_AVAILABLE_FORMATS : "null", /** <p>The minimum frame duration that is supported for each resolution in android.scaler.availableJpegSizes.</p> <p>This corresponds to the minimum steady-state frame duration when only that JPEG stream is active and captured in a burst, with all processing (typically in android.*.mode) set to FAST.</p> <p>When multiple streams are configured, the minimum frame duration will be >= max(individual stream min durations)</p> <p><b>Units</b>: Nanoseconds</p> <p><b>Range of valid values:</b><br> TODO: Remove property.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @deprecated <p>Not used in HALv3 or newer</p> @hide */ SCALER_AVAILABLE_JPEG_MIN_DURATIONS : "null", /** <p>The JPEG resolutions that are supported by this camera device.</p> <p>The resolutions are listed as <code>(width, height)</code> pairs. All camera devices will support sensor maximum resolution (defined by {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}).</p> <p><b>Range of valid values:</b><br> TODO: Remove property.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE @deprecated <p>Not used in HALv3 or newer</p> @hide */ SCALER_AVAILABLE_JPEG_SIZES : "null", /** <p>The maximum ratio between both active area width and crop region width, and active area height and crop region height, for {@link android.hardware.camera2.CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion}.</p> <p>This represents the maximum amount of zooming possible by the camera device, or equivalently, the minimum cropping window size.</p> <p>Crop regions that have a width or height that is smaller than this ratio allows will be rounded up to the minimum allowed size by the camera device.</p> <p><b>Units</b>: Zoom scale factor</p> <p><b>Range of valid values:</b><br> >=1</p> <p>This key is available on all devices.</p> @see CaptureRequest#SCALER_CROP_REGION */ SCALER_AVAILABLE_MAX_DIGITAL_ZOOM : "null", /** <p>For each available processed output size (defined in android.scaler.availableProcessedSizes), this property lists the minimum supportable frame duration for that size.</p> <p>This should correspond to the frame duration when only that processed stream is active, with all processing (typically in android.*.mode) set to FAST.</p> <p>When multiple streams are configured, the minimum frame duration will be >= max(individual stream min durations).</p> <p><b>Units</b>: Nanoseconds</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @deprecated <p>Not used in HALv3 or newer</p> @hide */ SCALER_AVAILABLE_PROCESSED_MIN_DURATIONS : "null", /** <p>The resolutions available for use with processed output streams, such as YV12, NV12, and platform opaque YUV/RGB streams to the GPU or video encoders.</p> <p>The resolutions are listed as <code>(width, height)</code> pairs.</p> <p>For a given use case, the actual maximum supported resolution may be lower than what is listed here, depending on the destination Surface for the image data. For example, for recording video, the video encoder chosen may have a maximum size limit (e.g. 1080p) smaller than what the camera (e.g. maximum resolution is 3264x2448) can provide.</p> <p>Please reference the documentation for the image data destination to check if it limits the maximum size for image data.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @deprecated <p>Not used in HALv3 or newer</p> @hide */ SCALER_AVAILABLE_PROCESSED_SIZES : "null", /** <p>The mapping of image formats that are supported by this camera device for input streams, to their corresponding output formats.</p> <p>All camera devices with at least 1 {@link android.hardware.camera2.CameraCharacteristics#REQUEST_MAX_NUM_INPUT_STREAMS android.request.maxNumInputStreams} will have at least one available input format.</p> <p>The camera device will support the following map of formats, if its dependent capability ({@link android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities}) is supported:</p> <table> <thead> <tr> <th align="left">Input Format</th> <th align="left">Output Format</th> <th align="left">Capability</th> </tr> </thead> <tbody> <tr> <td align="left">{@link android.graphics.ImageFormat#PRIVATE }</td> <td align="left">{@link android.graphics.ImageFormat#JPEG }</td> <td align="left">PRIVATE_REPROCESSING</td> </tr> <tr> <td align="left">{@link android.graphics.ImageFormat#PRIVATE }</td> <td align="left">{@link android.graphics.ImageFormat#YUV_420_888 }</td> <td align="left">PRIVATE_REPROCESSING</td> </tr> <tr> <td align="left">{@link android.graphics.ImageFormat#YUV_420_888 }</td> <td align="left">{@link android.graphics.ImageFormat#JPEG }</td> <td align="left">YUV_REPROCESSING</td> </tr> <tr> <td align="left">{@link android.graphics.ImageFormat#YUV_420_888 }</td> <td align="left">{@link android.graphics.ImageFormat#YUV_420_888 }</td> <td align="left">YUV_REPROCESSING</td> </tr> </tbody> </table> <p>PRIVATE refers to a device-internal format that is not directly application-visible. A PRIVATE input surface can be acquired by {@link android.media.ImageReader#newInstance } with {@link android.graphics.ImageFormat#PRIVATE } as the format.</p> <p>For a PRIVATE_REPROCESSING-capable camera device, using the PRIVATE format as either input or output will never hurt maximum frame rate (i.e. {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputStallDuration getOutputStallDuration(ImageFormat.PRIVATE, size)} is always 0),</p> <p>Attempting to configure an input stream with output streams not listed as available in this map is not valid.</p> <p>Additionally, if the camera device is MONOCHROME with Y8 support, it will also support the following map of formats if its dependent capability ({@link android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities}) is supported:</p> <table> <thead> <tr> <th align="left">Input Format</th> <th align="left">Output Format</th> <th align="left">Capability</th> </tr> </thead> <tbody> <tr> <td align="left">{@link android.graphics.ImageFormat#PRIVATE }</td> <td align="left">{@link android.graphics.ImageFormat#Y8 }</td> <td align="left">PRIVATE_REPROCESSING</td> </tr> <tr> <td align="left">{@link android.graphics.ImageFormat#Y8 }</td> <td align="left">{@link android.graphics.ImageFormat#JPEG }</td> <td align="left">YUV_REPROCESSING</td> </tr> <tr> <td align="left">{@link android.graphics.ImageFormat#Y8 }</td> <td align="left">{@link android.graphics.ImageFormat#Y8 }</td> <td align="left">YUV_REPROCESSING</td> </tr> </tbody> </table> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES @see CameraCharacteristics#REQUEST_MAX_NUM_INPUT_STREAMS @hide */ SCALER_AVAILABLE_INPUT_OUTPUT_FORMATS_MAP : "null", /** <p>The available stream configurations that this camera device supports (i.e. format, width, height, output/input stream).</p> <p>The configurations are listed as <code>(format, width, height, input?)</code> tuples.</p> <p>For a given use case, the actual maximum supported resolution may be lower than what is listed here, depending on the destination Surface for the image data. For example, for recording video, the video encoder chosen may have a maximum size limit (e.g. 1080p) smaller than what the camera (e.g. maximum resolution is 3264x2448) can provide.</p> <p>Please reference the documentation for the image data destination to check if it limits the maximum size for image data.</p> <p>Not all output formats may be supported in a configuration with an input stream of a particular format. For more details, see android.scaler.availableInputOutputFormatsMap.</p> <p>The following table describes the minimum required output stream configurations based on the hardware level ({@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel}):</p> <table> <thead> <tr> <th align="center">Format</th> <th align="center">Size</th> <th align="center">Hardware Level</th> <th align="center">Notes</th> </tr> </thead> <tbody> <tr> <td align="center">JPEG</td> <td align="center">{@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}</td> <td align="center">Any</td> <td align="center"></td> </tr> <tr> <td align="center">JPEG</td> <td align="center">1920x1080 (1080p)</td> <td align="center">Any</td> <td align="center">if 1080p <= activeArraySize</td> </tr> <tr> <td align="center">JPEG</td> <td align="center">1280x720 (720)</td> <td align="center">Any</td> <td align="center">if 720p <= activeArraySize</td> </tr> <tr> <td align="center">JPEG</td> <td align="center">640x480 (480p)</td> <td align="center">Any</td> <td align="center">if 480p <= activeArraySize</td> </tr> <tr> <td align="center">JPEG</td> <td align="center">320x240 (240p)</td> <td align="center">Any</td> <td align="center">if 240p <= activeArraySize</td> </tr> <tr> <td align="center">YUV_420_888</td> <td align="center">all output sizes available for JPEG</td> <td align="center">FULL</td> <td align="center"></td> </tr> <tr> <td align="center">YUV_420_888</td> <td align="center">all output sizes available for JPEG, up to the maximum video size</td> <td align="center">LIMITED</td> <td align="center"></td> </tr> <tr> <td align="center">IMPLEMENTATION_DEFINED</td> <td align="center">same as YUV_420_888</td> <td align="center">Any</td> <td align="center"></td> </tr> </tbody> </table> <p>Refer to {@link android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} for additional mandatory stream configurations on a per-capability basis.</p> <p>Exception on 176x144 (QCIF) resolution: camera devices usually have a fixed capability for downscaling from larger resolution to smaller, and the QCIF resolution sometimes is not fully supported due to this limitation on devices with high-resolution image sensors. Therefore, trying to configure a QCIF resolution stream together with any other stream larger than 1920x1080 resolution (either width or height) might not be supported, and capture session creation will fail if it is not.</p> <p>This key is available on all devices.</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE @hide */ SCALER_AVAILABLE_STREAM_CONFIGURATIONS : "null", /** <p>This lists the minimum frame duration for each format/size combination.</p> <p>This should correspond to the frame duration when only that stream is active, with all processing (typically in android.*.mode) set to either OFF or FAST.</p> <p>When multiple streams are used in a request, the minimum frame duration will be max(individual stream min durations).</p> <p>The minimum frame duration of a stream (of a particular format, size) is the same regardless of whether the stream is input or output.</p> <p>See {@link android.hardware.camera2.CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration} and android.scaler.availableStallDurations for more details about calculating the max frame rate.</p> <p><b>Units</b>: (format, width, height, ns) x n</p> <p>This key is available on all devices.</p> @see CaptureRequest#SENSOR_FRAME_DURATION @hide */ SCALER_AVAILABLE_MIN_FRAME_DURATIONS : "null", /** <p>This lists the maximum stall duration for each output format/size combination.</p> <p>A stall duration is how much extra time would get added to the normal minimum frame duration for a repeating request that has streams with non-zero stall.</p> <p>For example, consider JPEG captures which have the following characteristics:</p> <ul> <li>JPEG streams act like processed YUV streams in requests for which they are not included; in requests in which they are directly referenced, they act as JPEG streams. This is because supporting a JPEG stream requires the underlying YUV data to always be ready for use by a JPEG encoder, but the encoder will only be used (and impact frame duration) on requests that actually reference a JPEG stream.</li> <li>The JPEG processor can run concurrently to the rest of the camera pipeline, but cannot process more than 1 capture at a time.</li> </ul> <p>In other words, using a repeating YUV request would result in a steady frame rate (let's say it's 30 FPS). If a single JPEG request is submitted periodically, the frame rate will stay at 30 FPS (as long as we wait for the previous JPEG to return each time). If we try to submit a repeating YUV + JPEG request, then the frame rate will drop from 30 FPS.</p> <p>In general, submitting a new request with a non-0 stall time stream will <em>not</em> cause a frame rate drop unless there are still outstanding buffers for that stream from previous requests.</p> <p>Submitting a repeating request with streams (call this <code>S</code>) is the same as setting the minimum frame duration from the normal minimum frame duration corresponding to <code>S</code>, added with the maximum stall duration for <code>S</code>.</p> <p>If interleaving requests with and without a stall duration, a request will stall by the maximum of the remaining times for each can-stall stream with outstanding buffers.</p> <p>This means that a stalling request will not have an exposure start until the stall has completed.</p> <p>This should correspond to the stall duration when only that stream is active, with all processing (typically in android.*.mode) set to FAST or OFF. Setting any of the processing modes to HIGH_QUALITY effectively results in an indeterminate stall duration for all streams in a request (the regular stall calculation rules are ignored).</p> <p>The following formats may always have a stall duration:</p> <ul> <li>{@link android.graphics.ImageFormat#JPEG }</li> <li>{@link android.graphics.ImageFormat#RAW_SENSOR }</li> </ul> <p>The following formats will never have a stall duration:</p> <ul> <li>{@link android.graphics.ImageFormat#YUV_420_888 }</li> <li>{@link android.graphics.ImageFormat#RAW10 }</li> <li>{@link android.graphics.ImageFormat#RAW12 }</li> <li>{@link android.graphics.ImageFormat#Y8 }</li> </ul> <p>All other formats may or may not have an allowed stall duration on a per-capability basis; refer to {@link android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} for more details.</p> <p>See {@link android.hardware.camera2.CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration} for more information about calculating the max frame rate (absent stalls).</p> <p><b>Units</b>: (format, width, height, ns) x n</p> <p>This key is available on all devices.</p> @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES @see CaptureRequest#SENSOR_FRAME_DURATION @hide */ SCALER_AVAILABLE_STALL_DURATIONS : "null", /** <p>The available stream configurations that this camera device supports; also includes the minimum frame durations and the stall durations for each format/size combination.</p> <p>All camera devices will support sensor maximum resolution (defined by {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}) for the JPEG format.</p> <p>For a given use case, the actual maximum supported resolution may be lower than what is listed here, depending on the destination Surface for the image data. For example, for recording video, the video encoder chosen may have a maximum size limit (e.g. 1080p) smaller than what the camera (e.g. maximum resolution is 3264x2448) can provide.</p> <p>Please reference the documentation for the image data destination to check if it limits the maximum size for image data.</p> <p>The following table describes the minimum required output stream configurations based on the hardware level ({@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel}):</p> <table> <thead> <tr> <th align="center">Format</th> <th align="center">Size</th> <th align="center">Hardware Level</th> <th align="center">Notes</th> </tr> </thead> <tbody> <tr> <td align="center">{@link android.graphics.ImageFormat#JPEG }</td> <td align="center">{@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize} (*1)</td> <td align="center">Any</td> <td align="center"></td> </tr> <tr> <td align="center">{@link android.graphics.ImageFormat#JPEG }</td> <td align="center">1920x1080 (1080p)</td> <td align="center">Any</td> <td align="center">if 1080p <= activeArraySize</td> </tr> <tr> <td align="center">{@link android.graphics.ImageFormat#JPEG }</td> <td align="center">1280x720 (720p)</td> <td align="center">Any</td> <td align="center">if 720p <= activeArraySize</td> </tr> <tr> <td align="center">{@link android.graphics.ImageFormat#JPEG }</td> <td align="center">640x480 (480p)</td> <td align="center">Any</td> <td align="center">if 480p <= activeArraySize</td> </tr> <tr> <td align="center">{@link android.graphics.ImageFormat#JPEG }</td> <td align="center">320x240 (240p)</td> <td align="center">Any</td> <td align="center">if 240p <= activeArraySize</td> </tr> <tr> <td align="center">{@link android.graphics.ImageFormat#YUV_420_888 }</td> <td align="center">all output sizes available for JPEG</td> <td align="center">FULL</td> <td align="center"></td> </tr> <tr> <td align="center">{@link android.graphics.ImageFormat#YUV_420_888 }</td> <td align="center">all output sizes available for JPEG, up to the maximum video size</td> <td align="center">LIMITED</td> <td align="center"></td> </tr> <tr> <td align="center">{@link android.graphics.ImageFormat#PRIVATE }</td> <td align="center">same as YUV_420_888</td> <td align="center">Any</td> <td align="center"></td> </tr> </tbody> </table> <p>Refer to {@link android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} and {@link android.hardware.camera2.CameraDevice#createCaptureSession } for additional mandatory stream configurations on a per-capability basis.</p> <p>*1: For JPEG format, the sizes may be restricted by below conditions:</p> <ul> <li>The HAL may choose the aspect ratio of each Jpeg size to be one of well known ones (e.g. 4:3, 16:9, 3:2 etc.). If the sensor maximum resolution (defined by {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}) has an aspect ratio other than these, it does not have to be included in the supported JPEG sizes.</li> <li>Some hardware JPEG encoders may have pixel boundary alignment requirements, such as the dimensions being a multiple of 16. Therefore, the maximum JPEG size may be smaller than sensor maximum resolution. However, the largest JPEG size will be as close as possible to the sensor maximum resolution given above constraints. It is required that after aspect ratio adjustments, additional size reduction due to other issues must be less than 3% in area. For example, if the sensor maximum resolution is 3280x2464, if the maximum JPEG size has aspect ratio 4:3, and the JPEG encoder alignment requirement is 16, the maximum JPEG size will be 3264x2448.</li> </ul> <p>Exception on 176x144 (QCIF) resolution: camera devices usually have a fixed capability on downscaling from larger resolution to smaller ones, and the QCIF resolution can sometimes not be fully supported due to this limitation on devices with high-resolution image sensors. Therefore, trying to configure a QCIF resolution stream together with any other stream larger than 1920x1080 resolution (either width or height) might not be supported, and capture session creation will fail if it is not.</p> <p>This key is available on all devices.</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE */ SCALER_STREAM_CONFIGURATION_MAP : "null", /** <p>The crop type that this camera device supports.</p> <p>When passing a non-centered crop region ({@link android.hardware.camera2.CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion}) to a camera device that only supports CENTER_ONLY cropping, the camera device will move the crop region to the center of the sensor active array ({@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}) and keep the crop region width and height unchanged. The camera device will return the final used crop region in metadata result {@link android.hardware.camera2.CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion}.</p> <p>Camera devices that support FREEFORM cropping will support any crop region that is inside of the active array. The camera device will apply the same crop region and return the final used crop region in capture result metadata {@link android.hardware.camera2.CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion}.</p> <p>LEGACY capability devices will only support CENTER_ONLY cropping.</p> <p><b>Possible values:</b> <ul> <li>{@link #SCALER_CROPPING_TYPE_CENTER_ONLY CENTER_ONLY}</li> <li>{@link #SCALER_CROPPING_TYPE_FREEFORM FREEFORM}</li> </ul></p> <p>This key is available on all devices.</p> @see CaptureRequest#SCALER_CROP_REGION @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE @see #SCALER_CROPPING_TYPE_CENTER_ONLY @see #SCALER_CROPPING_TYPE_FREEFORM */ SCALER_CROPPING_TYPE : "null", /** <p>Recommended stream configurations for common client use cases.</p> <p>Optional subset of the android.scaler.availableStreamConfigurations that contains similar tuples listed as (i.e. width, height, format, output/input stream, usecase bit field). Camera devices will be able to suggest particular stream configurations which are power and performance efficient for specific use cases. For more information about retrieving the suggestions see {@link android.hardware.camera2.CameraCharacteristics#getRecommendedStreamConfigurationMap }.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @hide */ SCALER_AVAILABLE_RECOMMENDED_STREAM_CONFIGURATIONS : "null", /** <p>Recommended mappings of image formats that are supported by this camera device for input streams, to their corresponding output formats.</p> <p>This is a recommended subset of the complete list of mappings found in android.scaler.availableInputOutputFormatsMap. The same requirements apply here as well. The list however doesn't need to contain all available and supported mappings. Instead of this developers must list only recommended and efficient entries. If set, the information will be available in the ZERO_SHUTTER_LAG recommended stream configuration see {@link android.hardware.camera2.CameraCharacteristics#getRecommendedStreamConfigurationMap }.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @hide */ SCALER_AVAILABLE_RECOMMENDED_INPUT_OUTPUT_FORMATS_MAP : "null", /** <p>An array of mandatory stream combinations generated according to the camera device {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL } and {@link android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES }. This is an app-readable conversion of the mandatory stream combination {@link android.hardware.camera2.CameraDevice#createCaptureSession tables}.</p> <p>The array of {@link android.hardware.camera2.params.MandatoryStreamCombination combinations} is generated according to the documented {@link android.hardware.camera2.CameraDevice#createCaptureSession guideline} based on specific device level and capabilities. Clients can use the array as a quick reference to find an appropriate camera stream combination. As per documentation, the stream combinations with given PREVIEW, RECORD and MAXIMUM resolutions and anything smaller from the list given by {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes } are guaranteed to work. For a physical camera not independently exposed in {@link android.hardware.camera2.CameraManager#getCameraIdList }, the mandatory stream combinations for that physical camera Id are also generated, so that the application can configure them as physical streams via the logical camera. The mandatory stream combination array will be {@code null} in case the device is not backward compatible.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL */ SCALER_MANDATORY_STREAM_COMBINATIONS : "null", /** <p>The area of the image sensor which corresponds to active pixels after any geometric distortion correction has been applied.</p> <p>This is the rectangle representing the size of the active region of the sensor (i.e. the region that actually receives light from the scene) after any geometric correction has been applied, and should be treated as the maximum size in pixels of any of the image output formats aside from the raw formats.</p> <p>This rectangle is defined relative to the full pixel array; (0,0) is the top-left of the full pixel array, and the size of the full pixel array is given by {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE android.sensor.info.pixelArraySize}.</p> <p>The coordinate system for most other keys that list pixel coordinates, including {@link android.hardware.camera2.CaptureRequest#SCALER_CROP_REGION android.scaler.cropRegion}, is defined relative to the active array rectangle given in this field, with <code>(0, 0)</code> being the top-left of this rectangle.</p> <p>The active array may be smaller than the full pixel array, since the full array may include black calibration pixels or other inactive regions.</p> <p>For devices that do not support {@link android.hardware.camera2.CaptureRequest#DISTORTION_CORRECTION_MODE android.distortionCorrection.mode} control, the active array must be the same as {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize}.</p> <p>For devices that support {@link android.hardware.camera2.CaptureRequest#DISTORTION_CORRECTION_MODE android.distortionCorrection.mode} control, the active array must be enclosed by {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize}. The difference between pre-correction active array and active array accounts for scaling or cropping caused by lens geometric distortion correction.</p> <p>In general, application should always refer to active array size for controls like metering regions or crop region. Two exceptions are when the application is dealing with RAW image buffers (RAW_SENSOR, RAW10, RAW12 etc), or when application explicitly set {@link android.hardware.camera2.CaptureRequest#DISTORTION_CORRECTION_MODE android.distortionCorrection.mode} to OFF. In these cases, application should refer to {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize}.</p> <p><b>Units</b>: Pixel coordinates on the image sensor</p> <p>This key is available on all devices.</p> @see CaptureRequest#DISTORTION_CORRECTION_MODE @see CaptureRequest#SCALER_CROP_REGION @see CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE @see CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE */ SENSOR_INFO_ACTIVE_ARRAY_SIZE : "null", /** <p>Range of sensitivities for {@link android.hardware.camera2.CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity} supported by this camera device.</p> <p>The values are the standard ISO sensitivity values, as defined in ISO 12232:2006.</p> <p><b>Range of valid values:</b><br> Min <= 100, Max >= 800</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Full capability</b> - Present on all camera devices that report being {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CaptureRequest#SENSOR_SENSITIVITY */ SENSOR_INFO_SENSITIVITY_RANGE : "null", /** <p>The arrangement of color filters on sensor; represents the colors in the top-left 2x2 section of the sensor, in reading order, for a Bayer camera, or the light spectrum it captures for MONOCHROME camera.</p> <p><b>Possible values:</b> <ul> <li>{@link #SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGGB RGGB}</li> <li>{@link #SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GRBG GRBG}</li> <li>{@link #SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GBRG GBRG}</li> <li>{@link #SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_BGGR BGGR}</li> <li>{@link #SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGB RGB}</li> <li>{@link #SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_MONO MONO}</li> <li>{@link #SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_NIR NIR}</li> </ul></p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Full capability</b> - Present on all camera devices that report being {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see #SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGGB @see #SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GRBG @see #SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GBRG @see #SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_BGGR @see #SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGB @see #SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_MONO @see #SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_NIR */ SENSOR_INFO_COLOR_FILTER_ARRANGEMENT : "null", /** <p>The range of image exposure times for {@link android.hardware.camera2.CaptureRequest#SENSOR_EXPOSURE_TIME android.sensor.exposureTime} supported by this camera device.</p> <p><b>Units</b>: Nanoseconds</p> <p><b>Range of valid values:</b><br> The minimum exposure time will be less than 100 us. For FULL capability devices ({@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} == FULL), the maximum exposure time will be greater than 100ms.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Full capability</b> - Present on all camera devices that report being {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CaptureRequest#SENSOR_EXPOSURE_TIME */ SENSOR_INFO_EXPOSURE_TIME_RANGE : "null", /** <p>The maximum possible frame duration (minimum frame rate) for {@link android.hardware.camera2.CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration} that is supported this camera device.</p> <p>Attempting to use frame durations beyond the maximum will result in the frame duration being clipped to the maximum. See that control for a full definition of frame durations.</p> <p>Refer to {@link android.hardware.camera2.params.StreamConfigurationMap#getOutputMinFrameDuration } for the minimum frame duration values.</p> <p><b>Units</b>: Nanoseconds</p> <p><b>Range of valid values:</b><br> For FULL capability devices ({@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} == FULL), at least 100ms.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Full capability</b> - Present on all camera devices that report being {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CaptureRequest#SENSOR_FRAME_DURATION */ SENSOR_INFO_MAX_FRAME_DURATION : "null", /** <p>The physical dimensions of the full pixel array.</p> <p>This is the physical size of the sensor pixel array defined by {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE android.sensor.info.pixelArraySize}.</p> <p><b>Units</b>: Millimeters</p> <p>This key is available on all devices.</p> @see CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE */ SENSOR_INFO_PHYSICAL_SIZE : "null", /** <p>Dimensions of the full pixel array, possibly including black calibration pixels.</p> <p>The pixel count of the full pixel array of the image sensor, which covers {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PHYSICAL_SIZE android.sensor.info.physicalSize} area. This represents the full pixel dimensions of the raw buffers produced by this sensor.</p> <p>If a camera device supports raw sensor formats, either this or {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize} is the maximum dimensions for the raw output formats listed in {@link android.hardware.camera2.params.StreamConfigurationMap } (this depends on whether or not the image sensor returns buffers containing pixels that are not part of the active array region for blacklevel calibration or other purposes).</p> <p>Some parts of the full pixel array may not receive light from the scene, or be otherwise inactive. The {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize} key defines the rectangle of active pixels that will be included in processed image formats.</p> <p><b>Units</b>: Pixels</p> <p>This key is available on all devices.</p> @see CameraCharacteristics#SENSOR_INFO_PHYSICAL_SIZE @see CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE */ SENSOR_INFO_PIXEL_ARRAY_SIZE : "null", /** <p>Maximum raw value output by sensor.</p> <p>This specifies the fully-saturated encoding level for the raw sample values from the sensor. This is typically caused by the sensor becoming highly non-linear or clipping. The minimum for each channel is specified by the offset in the {@link android.hardware.camera2.CameraCharacteristics#SENSOR_BLACK_LEVEL_PATTERN android.sensor.blackLevelPattern} key.</p> <p>The white level is typically determined either by sensor bit depth (8-14 bits is expected), or by the point where the sensor response becomes too non-linear to be useful. The default value for this is maximum representable value for a 16-bit raw sample (2^16 - 1).</p> <p>The white level values of captured images may vary for different capture settings (e.g., {@link android.hardware.camera2.CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}). This key represents a coarse approximation for such case. It is recommended to use {@link android.hardware.camera2.CaptureResult#SENSOR_DYNAMIC_WHITE_LEVEL android.sensor.dynamicWhiteLevel} for captures when supported by the camera device, which provides more accurate white level values.</p> <p><b>Range of valid values:</b><br> > 255 (8-bit output)</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see CameraCharacteristics#SENSOR_BLACK_LEVEL_PATTERN @see CaptureResult#SENSOR_DYNAMIC_WHITE_LEVEL @see CaptureRequest#SENSOR_SENSITIVITY */ SENSOR_INFO_WHITE_LEVEL : "null", /** <p>The time base source for sensor capture start timestamps.</p> <p>The timestamps provided for captures are always in nanoseconds and monotonic, but may not based on a time source that can be compared to other system time sources.</p> <p>This characteristic defines the source for the timestamps, and therefore whether they can be compared against other system time sources/timestamps.</p> <p><b>Possible values:</b> <ul> <li>{@link #SENSOR_INFO_TIMESTAMP_SOURCE_UNKNOWN UNKNOWN}</li> <li>{@link #SENSOR_INFO_TIMESTAMP_SOURCE_REALTIME REALTIME}</li> </ul></p> <p>This key is available on all devices.</p> @see #SENSOR_INFO_TIMESTAMP_SOURCE_UNKNOWN @see #SENSOR_INFO_TIMESTAMP_SOURCE_REALTIME */ SENSOR_INFO_TIMESTAMP_SOURCE : "null", /** <p>Whether the RAW images output from this camera device are subject to lens shading correction.</p> <p>If TRUE, all images produced by the camera device in the RAW image formats will have lens shading correction already applied to it. If FALSE, the images will not be adjusted for lens shading correction. See {@link android.hardware.camera2.CameraCharacteristics#REQUEST_MAX_NUM_OUTPUT_RAW android.request.maxNumOutputRaw} for a list of RAW image formats.</p> <p>This key will be <code>null</code> for all devices do not report this information. Devices with RAW capability will always report this information in this key.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see CameraCharacteristics#REQUEST_MAX_NUM_OUTPUT_RAW */ SENSOR_INFO_LENS_SHADING_APPLIED : "null", /** <p>The area of the image sensor which corresponds to active pixels prior to the application of any geometric distortion correction.</p> <p>This is the rectangle representing the size of the active region of the sensor (i.e. the region that actually receives light from the scene) before any geometric correction has been applied, and should be treated as the active region rectangle for any of the raw formats. All metadata associated with raw processing (e.g. the lens shading correction map, and radial distortion fields) treats the top, left of this rectangle as the origin, (0,0).</p> <p>The size of this region determines the maximum field of view and the maximum number of pixels that an image from this sensor can contain, prior to the application of geometric distortion correction. The effective maximum pixel dimensions of a post-distortion-corrected image is given by the {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize} field, and the effective maximum field of view for a post-distortion-corrected image can be calculated by applying the geometric distortion correction fields to this rectangle, and cropping to the rectangle given in {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.</p> <p>E.g. to calculate position of a pixel, (x,y), in a processed YUV output image with the dimensions in {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize} given the position of a pixel, (x', y'), in the raw pixel array with dimensions give in {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE android.sensor.info.pixelArraySize}:</p> <ol> <li>Choose a pixel (x', y') within the active array region of the raw buffer given in {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize}, otherwise this pixel is considered to be outside of the FOV, and will not be shown in the processed output image.</li> <li>Apply geometric distortion correction to get the post-distortion pixel coordinate, (x_i, y_i). When applying geometric correction metadata, note that metadata for raw buffers is defined relative to the top, left of the {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize} rectangle.</li> <li>If the resulting corrected pixel coordinate is within the region given in {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}, then the position of this pixel in the processed output image buffer is <code>(x_i - activeArray.left, y_i - activeArray.top)</code>, when the top, left coordinate of that buffer is treated as (0, 0).</li> </ol> <p>Thus, for pixel x',y' = (25, 25) on a sensor where {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE android.sensor.info.pixelArraySize} is (100,100), {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE android.sensor.info.preCorrectionActiveArraySize} is (10, 10, 100, 100), {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize} is (20, 20, 80, 80), and the geometric distortion correction doesn't change the pixel coordinate, the resulting pixel selected in pixel coordinates would be x,y = (25, 25) relative to the top,left of the raw buffer with dimensions given in {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE android.sensor.info.pixelArraySize}, and would be (5, 5) relative to the top,left of post-processed YUV output buffer with dimensions given in {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.</p> <p>The currently supported fields that correct for geometric distortion are:</p> <ol> <li>{@link android.hardware.camera2.CameraCharacteristics#LENS_DISTORTION android.lens.distortion}.</li> </ol> <p>If the camera device doesn't support geometric distortion correction, or all of the geometric distortion fields are no-ops, this rectangle will be the same as the post-distortion-corrected rectangle given in {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE android.sensor.info.activeArraySize}.</p> <p>This rectangle is defined relative to the full pixel array; (0,0) is the top-left of the full pixel array, and the size of the full pixel array is given by {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE android.sensor.info.pixelArraySize}.</p> <p>The pre-correction active array may be smaller than the full pixel array, since the full array may include black calibration pixels or other inactive regions.</p> <p><b>Units</b>: Pixel coordinates on the image sensor</p> <p>This key is available on all devices.</p> @see CameraCharacteristics#LENS_DISTORTION @see CameraCharacteristics#SENSOR_INFO_ACTIVE_ARRAY_SIZE @see CameraCharacteristics#SENSOR_INFO_PIXEL_ARRAY_SIZE @see CameraCharacteristics#SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE */ SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE : "null", /** <p>The standard reference illuminant used as the scene light source when calculating the {@link android.hardware.camera2.CameraCharacteristics#SENSOR_COLOR_TRANSFORM1 android.sensor.colorTransform1}, {@link android.hardware.camera2.CameraCharacteristics#SENSOR_CALIBRATION_TRANSFORM1 android.sensor.calibrationTransform1}, and {@link android.hardware.camera2.CameraCharacteristics#SENSOR_FORWARD_MATRIX1 android.sensor.forwardMatrix1} matrices.</p> <p>The values in this key correspond to the values defined for the EXIF LightSource tag. These illuminants are standard light sources that are often used calibrating camera devices.</p> <p>If this key is present, then {@link android.hardware.camera2.CameraCharacteristics#SENSOR_COLOR_TRANSFORM1 android.sensor.colorTransform1}, {@link android.hardware.camera2.CameraCharacteristics#SENSOR_CALIBRATION_TRANSFORM1 android.sensor.calibrationTransform1}, and {@link android.hardware.camera2.CameraCharacteristics#SENSOR_FORWARD_MATRIX1 android.sensor.forwardMatrix1} will also be present.</p> <p>Some devices may choose to provide a second set of calibration information for improved quality, including {@link android.hardware.camera2.CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT2 android.sensor.referenceIlluminant2} and its corresponding matrices.</p> <p>Starting from Android Q, this key will not be present for a MONOCHROME camera, even if the camera device has RAW capability.</p> <p><b>Possible values:</b> <ul> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT DAYLIGHT}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_FLUORESCENT FLUORESCENT}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_TUNGSTEN TUNGSTEN}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_FLASH FLASH}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_FINE_WEATHER FINE_WEATHER}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_CLOUDY_WEATHER CLOUDY_WEATHER}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_SHADE SHADE}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT_FLUORESCENT DAYLIGHT_FLUORESCENT}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_DAY_WHITE_FLUORESCENT DAY_WHITE_FLUORESCENT}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_COOL_WHITE_FLUORESCENT COOL_WHITE_FLUORESCENT}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_WHITE_FLUORESCENT WHITE_FLUORESCENT}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_STANDARD_A STANDARD_A}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_STANDARD_B STANDARD_B}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_STANDARD_C STANDARD_C}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_D55 D55}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_D65 D65}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_D75 D75}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_D50 D50}</li> <li>{@link #SENSOR_REFERENCE_ILLUMINANT1_ISO_STUDIO_TUNGSTEN ISO_STUDIO_TUNGSTEN}</li> </ul></p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#SENSOR_CALIBRATION_TRANSFORM1 @see CameraCharacteristics#SENSOR_COLOR_TRANSFORM1 @see CameraCharacteristics#SENSOR_FORWARD_MATRIX1 @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT2 @see #SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT @see #SENSOR_REFERENCE_ILLUMINANT1_FLUORESCENT @see #SENSOR_REFERENCE_ILLUMINANT1_TUNGSTEN @see #SENSOR_REFERENCE_ILLUMINANT1_FLASH @see #SENSOR_REFERENCE_ILLUMINANT1_FINE_WEATHER @see #SENSOR_REFERENCE_ILLUMINANT1_CLOUDY_WEATHER @see #SENSOR_REFERENCE_ILLUMINANT1_SHADE @see #SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT_FLUORESCENT @see #SENSOR_REFERENCE_ILLUMINANT1_DAY_WHITE_FLUORESCENT @see #SENSOR_REFERENCE_ILLUMINANT1_COOL_WHITE_FLUORESCENT @see #SENSOR_REFERENCE_ILLUMINANT1_WHITE_FLUORESCENT @see #SENSOR_REFERENCE_ILLUMINANT1_STANDARD_A @see #SENSOR_REFERENCE_ILLUMINANT1_STANDARD_B @see #SENSOR_REFERENCE_ILLUMINANT1_STANDARD_C @see #SENSOR_REFERENCE_ILLUMINANT1_D55 @see #SENSOR_REFERENCE_ILLUMINANT1_D65 @see #SENSOR_REFERENCE_ILLUMINANT1_D75 @see #SENSOR_REFERENCE_ILLUMINANT1_D50 @see #SENSOR_REFERENCE_ILLUMINANT1_ISO_STUDIO_TUNGSTEN */ SENSOR_REFERENCE_ILLUMINANT1 : "null", /** <p>The standard reference illuminant used as the scene light source when calculating the {@link android.hardware.camera2.CameraCharacteristics#SENSOR_COLOR_TRANSFORM2 android.sensor.colorTransform2}, {@link android.hardware.camera2.CameraCharacteristics#SENSOR_CALIBRATION_TRANSFORM2 android.sensor.calibrationTransform2}, and {@link android.hardware.camera2.CameraCharacteristics#SENSOR_FORWARD_MATRIX2 android.sensor.forwardMatrix2} matrices.</p> <p>See {@link android.hardware.camera2.CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1 android.sensor.referenceIlluminant1} for more details.</p> <p>If this key is present, then {@link android.hardware.camera2.CameraCharacteristics#SENSOR_COLOR_TRANSFORM2 android.sensor.colorTransform2}, {@link android.hardware.camera2.CameraCharacteristics#SENSOR_CALIBRATION_TRANSFORM2 android.sensor.calibrationTransform2}, and {@link android.hardware.camera2.CameraCharacteristics#SENSOR_FORWARD_MATRIX2 android.sensor.forwardMatrix2} will also be present.</p> <p>Starting from Android Q, this key will not be present for a MONOCHROME camera, even if the camera device has RAW capability.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1 android.sensor.referenceIlluminant1}</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#SENSOR_CALIBRATION_TRANSFORM2 @see CameraCharacteristics#SENSOR_COLOR_TRANSFORM2 @see CameraCharacteristics#SENSOR_FORWARD_MATRIX2 @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1 */ SENSOR_REFERENCE_ILLUMINANT2 : "null", /** <p>A per-device calibration transform matrix that maps from the reference sensor colorspace to the actual device sensor colorspace.</p> <p>This matrix is used to correct for per-device variations in the sensor colorspace, and is used for processing raw buffer data.</p> <p>The matrix is expressed as a 3x3 matrix in row-major-order, and contains a per-device calibration transform that maps colors from reference sensor color space (i.e. the "golden module" colorspace) into this camera device's native sensor color space under the first reference illuminant ({@link android.hardware.camera2.CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1 android.sensor.referenceIlluminant1}).</p> <p>Starting from Android Q, this key will not be present for a MONOCHROME camera, even if the camera device has RAW capability.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1 */ SENSOR_CALIBRATION_TRANSFORM1 : "null", /** <p>A per-device calibration transform matrix that maps from the reference sensor colorspace to the actual device sensor colorspace (this is the colorspace of the raw buffer data).</p> <p>This matrix is used to correct for per-device variations in the sensor colorspace, and is used for processing raw buffer data.</p> <p>The matrix is expressed as a 3x3 matrix in row-major-order, and contains a per-device calibration transform that maps colors from reference sensor color space (i.e. the "golden module" colorspace) into this camera device's native sensor color space under the second reference illuminant ({@link android.hardware.camera2.CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT2 android.sensor.referenceIlluminant2}).</p> <p>This matrix will only be present if the second reference illuminant is present.</p> <p>Starting from Android Q, this key will not be present for a MONOCHROME camera, even if the camera device has RAW capability.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT2 */ SENSOR_CALIBRATION_TRANSFORM2 : "null", /** <p>A matrix that transforms color values from CIE XYZ color space to reference sensor color space.</p> <p>This matrix is used to convert from the standard CIE XYZ color space to the reference sensor colorspace, and is used when processing raw buffer data.</p> <p>The matrix is expressed as a 3x3 matrix in row-major-order, and contains a color transform matrix that maps colors from the CIE XYZ color space to the reference sensor color space (i.e. the "golden module" colorspace) under the first reference illuminant ({@link android.hardware.camera2.CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1 android.sensor.referenceIlluminant1}).</p> <p>The white points chosen in both the reference sensor color space and the CIE XYZ colorspace when calculating this transform will match the standard white point for the first reference illuminant (i.e. no chromatic adaptation will be applied by this transform).</p> <p>Starting from Android Q, this key will not be present for a MONOCHROME camera, even if the camera device has RAW capability.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1 */ SENSOR_COLOR_TRANSFORM1 : "null", /** <p>A matrix that transforms color values from CIE XYZ color space to reference sensor color space.</p> <p>This matrix is used to convert from the standard CIE XYZ color space to the reference sensor colorspace, and is used when processing raw buffer data.</p> <p>The matrix is expressed as a 3x3 matrix in row-major-order, and contains a color transform matrix that maps colors from the CIE XYZ color space to the reference sensor color space (i.e. the "golden module" colorspace) under the second reference illuminant ({@link android.hardware.camera2.CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT2 android.sensor.referenceIlluminant2}).</p> <p>The white points chosen in both the reference sensor color space and the CIE XYZ colorspace when calculating this transform will match the standard white point for the second reference illuminant (i.e. no chromatic adaptation will be applied by this transform).</p> <p>This matrix will only be present if the second reference illuminant is present.</p> <p>Starting from Android Q, this key will not be present for a MONOCHROME camera, even if the camera device has RAW capability.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT2 */ SENSOR_COLOR_TRANSFORM2 : "null", /** <p>A matrix that transforms white balanced camera colors from the reference sensor colorspace to the CIE XYZ colorspace with a D50 whitepoint.</p> <p>This matrix is used to convert to the standard CIE XYZ colorspace, and is used when processing raw buffer data.</p> <p>This matrix is expressed as a 3x3 matrix in row-major-order, and contains a color transform matrix that maps white balanced colors from the reference sensor color space to the CIE XYZ color space with a D50 white point.</p> <p>Under the first reference illuminant ({@link android.hardware.camera2.CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1 android.sensor.referenceIlluminant1}) this matrix is chosen so that the standard white point for this reference illuminant in the reference sensor colorspace is mapped to D50 in the CIE XYZ colorspace.</p> <p>Starting from Android Q, this key will not be present for a MONOCHROME camera, even if the camera device has RAW capability.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT1 */ SENSOR_FORWARD_MATRIX1 : "null", /** <p>A matrix that transforms white balanced camera colors from the reference sensor colorspace to the CIE XYZ colorspace with a D50 whitepoint.</p> <p>This matrix is used to convert to the standard CIE XYZ colorspace, and is used when processing raw buffer data.</p> <p>This matrix is expressed as a 3x3 matrix in row-major-order, and contains a color transform matrix that maps white balanced colors from the reference sensor color space to the CIE XYZ color space with a D50 white point.</p> <p>Under the second reference illuminant ({@link android.hardware.camera2.CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT2 android.sensor.referenceIlluminant2}) this matrix is chosen so that the standard white point for this reference illuminant in the reference sensor colorspace is mapped to D50 in the CIE XYZ colorspace.</p> <p>This matrix will only be present if the second reference illuminant is present.</p> <p>Starting from Android Q, this key will not be present for a MONOCHROME camera, even if the camera device has RAW capability.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Permission {@link android.Manifest.permission#CAMERA } is needed to access this property</b></p> @see CameraCharacteristics#SENSOR_REFERENCE_ILLUMINANT2 */ SENSOR_FORWARD_MATRIX2 : "null", /** <p>A fixed black level offset for each of the color filter arrangement (CFA) mosaic channels.</p> <p>This key specifies the zero light value for each of the CFA mosaic channels in the camera sensor. The maximal value output by the sensor is represented by the value in {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_WHITE_LEVEL android.sensor.info.whiteLevel}.</p> <p>The values are given in the same order as channels listed for the CFA layout key (see {@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT android.sensor.info.colorFilterArrangement}), i.e. the nth value given corresponds to the black level offset for the nth color channel listed in the CFA.</p> <p>The black level values of captured images may vary for different capture settings (e.g., {@link android.hardware.camera2.CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity}). This key represents a coarse approximation for such case. It is recommended to use {@link android.hardware.camera2.CaptureResult#SENSOR_DYNAMIC_BLACK_LEVEL android.sensor.dynamicBlackLevel} or use pixels from {@link android.hardware.camera2.CameraCharacteristics#SENSOR_OPTICAL_BLACK_REGIONS android.sensor.opticalBlackRegions} directly for captures when supported by the camera device, which provides more accurate black level values. For raw capture in particular, it is recommended to use pixels from {@link android.hardware.camera2.CameraCharacteristics#SENSOR_OPTICAL_BLACK_REGIONS android.sensor.opticalBlackRegions} to calculate black level values for each frame.</p> <p>For a MONOCHROME camera device, all of the 2x2 channels must have the same values.</p> <p><b>Range of valid values:</b><br> >= 0 for each.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see CaptureResult#SENSOR_DYNAMIC_BLACK_LEVEL @see CameraCharacteristics#SENSOR_INFO_COLOR_FILTER_ARRANGEMENT @see CameraCharacteristics#SENSOR_INFO_WHITE_LEVEL @see CameraCharacteristics#SENSOR_OPTICAL_BLACK_REGIONS @see CaptureRequest#SENSOR_SENSITIVITY */ SENSOR_BLACK_LEVEL_PATTERN : "null", /** <p>Maximum sensitivity that is implemented purely through analog gain.</p> <p>For {@link android.hardware.camera2.CaptureRequest#SENSOR_SENSITIVITY android.sensor.sensitivity} values less than or equal to this, all applied gain must be analog. For values above this, the gain applied can be a mix of analog and digital.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Full capability</b> - Present on all camera devices that report being {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CaptureRequest#SENSOR_SENSITIVITY */ SENSOR_MAX_ANALOG_SENSITIVITY : "null", /** <p>Clockwise angle through which the output image needs to be rotated to be upright on the device screen in its native orientation.</p> <p>Also defines the direction of rolling shutter readout, which is from top to bottom in the sensor's coordinate system.</p> <p><b>Units</b>: Degrees of clockwise rotation; always a multiple of 90</p> <p><b>Range of valid values:</b><br> 0, 90, 180, 270</p> <p>This key is available on all devices.</p> */ SENSOR_ORIENTATION : "null", /** <p>List of sensor test pattern modes for {@link android.hardware.camera2.CaptureRequest#SENSOR_TEST_PATTERN_MODE android.sensor.testPatternMode} supported by this camera device.</p> <p>Defaults to OFF, and always includes OFF if defined.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#SENSOR_TEST_PATTERN_MODE android.sensor.testPatternMode}</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see CaptureRequest#SENSOR_TEST_PATTERN_MODE */ SENSOR_AVAILABLE_TEST_PATTERN_MODES : "null", /** <p>List of disjoint rectangles indicating the sensor optically shielded black pixel regions.</p> <p>In most camera sensors, the active array is surrounded by some optically shielded pixel areas. By blocking light, these pixels provides a reliable black reference for black level compensation in active array region.</p> <p>This key provides a list of disjoint rectangles specifying the regions of optically shielded (with metal shield) black pixel regions if the camera device is capable of reading out these black pixels in the output raw images. In comparison to the fixed black level values reported by {@link android.hardware.camera2.CameraCharacteristics#SENSOR_BLACK_LEVEL_PATTERN android.sensor.blackLevelPattern}, this key may provide a more accurate way for the application to calculate black level of each captured raw images.</p> <p>When this key is reported, the {@link android.hardware.camera2.CaptureResult#SENSOR_DYNAMIC_BLACK_LEVEL android.sensor.dynamicBlackLevel} and {@link android.hardware.camera2.CaptureResult#SENSOR_DYNAMIC_WHITE_LEVEL android.sensor.dynamicWhiteLevel} will also be reported.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see CameraCharacteristics#SENSOR_BLACK_LEVEL_PATTERN @see CaptureResult#SENSOR_DYNAMIC_BLACK_LEVEL @see CaptureResult#SENSOR_DYNAMIC_WHITE_LEVEL */ SENSOR_OPTICAL_BLACK_REGIONS : "null", /** <p>List of lens shading modes for {@link android.hardware.camera2.CaptureRequest#SHADING_MODE android.shading.mode} that are supported by this camera device.</p> <p>This list contains lens shading modes that can be set for the camera device. Camera devices that support the MANUAL_POST_PROCESSING capability will always list OFF and FAST mode. This includes all FULL level devices. LEGACY devices will always only support FAST mode.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#SHADING_MODE android.shading.mode}</p> <p>This key is available on all devices.</p> @see CaptureRequest#SHADING_MODE */ SHADING_AVAILABLE_MODES : "null", /** <p>List of face detection modes for {@link android.hardware.camera2.CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode} that are supported by this camera device.</p> <p>OFF is always supported.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#STATISTICS_FACE_DETECT_MODE android.statistics.faceDetectMode}</p> <p>This key is available on all devices.</p> @see CaptureRequest#STATISTICS_FACE_DETECT_MODE */ STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES : "null", /** <p>The maximum number of simultaneously detectable faces.</p> <p><b>Range of valid values:</b><br> 0 for cameras without available face detection; otherwise: <code>>=4</code> for LIMITED or FULL hwlevel devices or <code>>0</code> for LEGACY devices.</p> <p>This key is available on all devices.</p> */ STATISTICS_INFO_MAX_FACE_COUNT : "null", /** <p>List of hot pixel map output modes for {@link android.hardware.camera2.CaptureRequest#STATISTICS_HOT_PIXEL_MAP_MODE android.statistics.hotPixelMapMode} that are supported by this camera device.</p> <p>If no hotpixel map output is available for this camera device, this will contain only <code>false</code>.</p> <p>ON is always supported on devices with the RAW capability.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#STATISTICS_HOT_PIXEL_MAP_MODE android.statistics.hotPixelMapMode}</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see CaptureRequest#STATISTICS_HOT_PIXEL_MAP_MODE */ STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES : "null", /** <p>List of lens shading map output modes for {@link android.hardware.camera2.CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE android.statistics.lensShadingMapMode} that are supported by this camera device.</p> <p>If no lens shading map output is available for this camera device, this key will contain only OFF.</p> <p>ON is always supported on devices with the RAW capability. LEGACY mode devices will always only support OFF.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE android.statistics.lensShadingMapMode}</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see CaptureRequest#STATISTICS_LENS_SHADING_MAP_MODE */ STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES : "null", /** <p>List of OIS data output modes for {@link android.hardware.camera2.CaptureRequest#STATISTICS_OIS_DATA_MODE android.statistics.oisDataMode} that are supported by this camera device.</p> <p>If no OIS data output is available for this camera device, this key will contain only OFF.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#STATISTICS_OIS_DATA_MODE android.statistics.oisDataMode}</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see CaptureRequest#STATISTICS_OIS_DATA_MODE */ STATISTICS_INFO_AVAILABLE_OIS_DATA_MODES : "null", /** <p>Maximum number of supported points in the tonemap curve that can be used for {@link android.hardware.camera2.CaptureRequest#TONEMAP_CURVE android.tonemap.curve}.</p> <p>If the actual number of points provided by the application (in {@link android.hardware.camera2.CaptureRequest#TONEMAP_CURVE android.tonemap.curve}*) is less than this maximum, the camera device will resample the curve to its internal representation, using linear interpolation.</p> <p>The output curves in the result metadata may have a different number of points than the input curves, and will represent the actual hardware curves used as closely as possible when linearly interpolated.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Full capability</b> - Present on all camera devices that report being {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CaptureRequest#TONEMAP_CURVE */ TONEMAP_MAX_CURVE_POINTS : "null", /** <p>List of tonemapping modes for {@link android.hardware.camera2.CaptureRequest#TONEMAP_MODE android.tonemap.mode} that are supported by this camera device.</p> <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always contain at least one of below mode combinations:</p> <ul> <li>CONTRAST_CURVE, FAST and HIGH_QUALITY</li> <li>GAMMA_VALUE, PRESET_CURVE, FAST and HIGH_QUALITY</li> </ul> <p>This includes all FULL level devices.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#TONEMAP_MODE android.tonemap.mode}</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Full capability</b> - Present on all camera devices that report being {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CaptureRequest#TONEMAP_MODE */ TONEMAP_AVAILABLE_TONE_MAP_MODES : "null", /** <p>A list of camera LEDs that are available on this system.</p> <p><b>Possible values:</b> <ul> <li>{@link #LED_AVAILABLE_LEDS_TRANSMIT TRANSMIT}</li> </ul></p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see #LED_AVAILABLE_LEDS_TRANSMIT @hide */ LED_AVAILABLE_LEDS : "null", /** <p>Generally classifies the overall set of the camera device functionality.</p> <p>The supported hardware level is a high-level description of the camera device's capabilities, summarizing several capabilities into one field. Each level adds additional features to the previous one, and is always a strict superset of the previous level. The ordering is <code>LEGACY < LIMITED < FULL < LEVEL_3</code>.</p> <p>Starting from <code>LEVEL_3</code>, the level enumerations are guaranteed to be in increasing numerical value as well. To check if a given device is at least at a given hardware level, the following code snippet can be used:</p> <pre><code>// Returns true if the device supports the required hardware level, or better. boolean isHardwareLevelSupported(CameraCharacteristics c, int requiredLevel) { final int[] sortedHwLevels = { CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY, CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_EXTERNAL, CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED, CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_FULL, CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_3 }; int deviceLevel = c.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL); if (requiredLevel == deviceLevel) { return true; } for (int sortedlevel : sortedHwLevels) { if (sortedlevel == requiredLevel) { return true; } else if (sortedlevel == deviceLevel) { return false; } } return false; // Should never reach here } </code></pre> <p>At a high level, the levels are:</p> <ul> <li><code>LEGACY</code> devices operate in a backwards-compatibility mode for older Android devices, and have very limited capabilities.</li> <li><code>LIMITED</code> devices represent the baseline feature set, and may also include additional capabilities that are subsets of <code>FULL</code>.</li> <li><code>FULL</code> devices additionally support per-frame manual control of sensor, flash, lens and post-processing settings, and image capture at a high rate.</li> <li><code>LEVEL_3</code> devices additionally support YUV reprocessing and RAW image capture, along with additional output stream configurations.</li> <li><code>EXTERNAL</code> devices are similar to <code>LIMITED</code> devices with exceptions like some sensor or lens information not reported or less stable framerates.</li> </ul> <p>See the individual level enums for full descriptions of the supported capabilities. The {@link android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} entry describes the device's capabilities at a finer-grain level, if needed. In addition, many controls have their available settings or ranges defined in individual entries from {@link android.hardware.camera2.CameraCharacteristics }.</p> <p>Some features are not part of any particular hardware level or capability and must be queried separately. These include:</p> <ul> <li>Calibrated timestamps ({@link android.hardware.camera2.CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE android.sensor.info.timestampSource} <code>==</code> REALTIME)</li> <li>Precision lens control ({@link android.hardware.camera2.CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION android.lens.info.focusDistanceCalibration} <code>==</code> CALIBRATED)</li> <li>Face detection ({@link android.hardware.camera2.CameraCharacteristics#STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES android.statistics.info.availableFaceDetectModes})</li> <li>Optical or electrical image stabilization ({@link android.hardware.camera2.CameraCharacteristics#LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION android.lens.info.availableOpticalStabilization}, {@link android.hardware.camera2.CameraCharacteristics#CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES android.control.availableVideoStabilizationModes})</li> </ul> <p><b>Possible values:</b> <ul> <li>{@link #INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED LIMITED}</li> <li>{@link #INFO_SUPPORTED_HARDWARE_LEVEL_FULL FULL}</li> <li>{@link #INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY LEGACY}</li> <li>{@link #INFO_SUPPORTED_HARDWARE_LEVEL_3 3}</li> <li>{@link #INFO_SUPPORTED_HARDWARE_LEVEL_EXTERNAL EXTERNAL}</li> </ul></p> <p>This key is available on all devices.</p> @see CameraCharacteristics#CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES @see CameraCharacteristics#LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION @see CameraCharacteristics#LENS_INFO_FOCUS_DISTANCE_CALIBRATION @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES @see CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE @see CameraCharacteristics#STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES @see #INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED @see #INFO_SUPPORTED_HARDWARE_LEVEL_FULL @see #INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY @see #INFO_SUPPORTED_HARDWARE_LEVEL_3 @see #INFO_SUPPORTED_HARDWARE_LEVEL_EXTERNAL */ INFO_SUPPORTED_HARDWARE_LEVEL : "null", /** <p>A short string for manufacturer version information about the camera device, such as ISP hardware, sensors, etc.</p> <p>This can be used in {@link android.media.ExifInterface#TAG_IMAGE_DESCRIPTION TAG_IMAGE_DESCRIPTION} in jpeg EXIF. This key may be absent if no version information is available on the device.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> */ INFO_VERSION : "null", /** <p>The maximum number of frames that can occur after a request (different than the previous) has been submitted, and before the result's state becomes synchronized.</p> <p>This defines the maximum distance (in number of metadata results), between the frame number of the request that has new controls to apply and the frame number of the result that has all the controls applied.</p> <p>In other words this acts as an upper boundary for how many frames must occur before the camera device knows for a fact that the new submitted camera settings have been applied in outgoing frames.</p> <p><b>Units</b>: Frame counts</p> <p><b>Possible values:</b> <ul> <li>{@link #SYNC_MAX_LATENCY_PER_FRAME_CONTROL PER_FRAME_CONTROL}</li> <li>{@link #SYNC_MAX_LATENCY_UNKNOWN UNKNOWN}</li> </ul></p> <p><b>Available values for this device:</b><br> A positive value, PER_FRAME_CONTROL, or UNKNOWN.</p> <p>This key is available on all devices.</p> @see #SYNC_MAX_LATENCY_PER_FRAME_CONTROL @see #SYNC_MAX_LATENCY_UNKNOWN */ SYNC_MAX_LATENCY : "null", /** <p>The maximal camera capture pipeline stall (in unit of frame count) introduced by a reprocess capture request.</p> <p>The key describes the maximal interference that one reprocess (input) request can introduce to the camera simultaneous streaming of regular (output) capture requests, including repeating requests.</p> <p>When a reprocessing capture request is submitted while a camera output repeating request (e.g. preview) is being served by the camera device, it may preempt the camera capture pipeline for at least one frame duration so that the camera device is unable to process the following capture request in time for the next sensor start of exposure boundary. When this happens, the application may observe a capture time gap (longer than one frame duration) between adjacent capture output frames, which usually exhibits as preview glitch if the repeating request output targets include a preview surface. This key gives the worst-case number of frame stall introduced by one reprocess request with any kind of formats/sizes combination.</p> <p>If this key reports 0, it means a reprocess request doesn't introduce any glitch to the ongoing camera repeating request outputs, as if this reprocess request is never issued.</p> <p>This key is supported if the camera device supports PRIVATE or YUV reprocessing ( i.e. {@link android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} contains PRIVATE_REPROCESSING or YUV_REPROCESSING).</p> <p><b>Units</b>: Number of frames.</p> <p><b>Range of valid values:</b><br> <= 4</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES */ REPROCESS_MAX_CAPTURE_STALL : "null", /** <p>The available depth dataspace stream configurations that this camera device supports (i.e. format, width, height, output/input stream).</p> <p>These are output stream configurations for use with dataSpace HAL_DATASPACE_DEPTH. The configurations are listed as <code>(format, width, height, input?)</code> tuples.</p> <p>Only devices that support depth output for at least the HAL_PIXEL_FORMAT_Y16 dense depth map may include this entry.</p> <p>A device that also supports the HAL_PIXEL_FORMAT_BLOB sparse depth point cloud must report a single entry for the format in this list as <code>(HAL_PIXEL_FORMAT_BLOB, android.depth.maxDepthSamples, 1, OUTPUT)</code> in addition to the entries for HAL_PIXEL_FORMAT_Y16.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @hide */ DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS : "null", /** <p>This lists the minimum frame duration for each format/size combination for depth output formats.</p> <p>This should correspond to the frame duration when only that stream is active, with all processing (typically in android.*.mode) set to either OFF or FAST.</p> <p>When multiple streams are used in a request, the minimum frame duration will be max(individual stream min durations).</p> <p>The minimum frame duration of a stream (of a particular format, size) is the same regardless of whether the stream is input or output.</p> <p>See {@link android.hardware.camera2.CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration} and android.scaler.availableStallDurations for more details about calculating the max frame rate.</p> <p><b>Units</b>: (format, width, height, ns) x n</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CaptureRequest#SENSOR_FRAME_DURATION @hide */ DEPTH_AVAILABLE_DEPTH_MIN_FRAME_DURATIONS : "null", /** <p>This lists the maximum stall duration for each output format/size combination for depth streams.</p> <p>A stall duration is how much extra time would get added to the normal minimum frame duration for a repeating request that has streams with non-zero stall.</p> <p>This functions similarly to android.scaler.availableStallDurations for depth streams.</p> <p>All depth output stream formats may have a nonzero stall duration.</p> <p><b>Units</b>: (format, width, height, ns) x n</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @hide */ DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS : "null", /** <p>Indicates whether a capture request may target both a DEPTH16 / DEPTH_POINT_CLOUD output, and normal color outputs (such as YUV_420_888, JPEG, or RAW) simultaneously.</p> <p>If TRUE, including both depth and color outputs in a single capture request is not supported. An application must interleave color and depth requests. If FALSE, a single request can target both types of output.</p> <p>Typically, this restriction exists on camera devices that need to emit a specific pattern or wavelength of light to measure depth values, which causes the color image to be corrupted during depth measurement.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL */ DEPTH_DEPTH_IS_EXCLUSIVE : "null", /** <p>Recommended depth stream configurations for common client use cases.</p> <p>Optional subset of the android.depth.availableDepthStreamConfigurations that contains similar tuples listed as (i.e. width, height, format, output/input stream, usecase bit field). Camera devices will be able to suggest particular depth stream configurations which are power and performance efficient for specific use cases. For more information about retrieving the suggestions see {@link android.hardware.camera2.CameraCharacteristics#getRecommendedStreamConfigurationMap }.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @hide */ DEPTH_AVAILABLE_RECOMMENDED_DEPTH_STREAM_CONFIGURATIONS : "null", /** <p>The available dynamic depth dataspace stream configurations that this camera device supports (i.e. format, width, height, output/input stream).</p> <p>These are output stream configurations for use with dataSpace DYNAMIC_DEPTH. The configurations are listed as <code>(format, width, height, input?)</code> tuples.</p> <p>Only devices that support depth output for at least the HAL_PIXEL_FORMAT_Y16 dense depth map along with HAL_PIXEL_FORMAT_BLOB with the same size or size with the same aspect ratio can have dynamic depth dataspace stream configuration. {@link android.hardware.camera2.CameraCharacteristics#DEPTH_DEPTH_IS_EXCLUSIVE android.depth.depthIsExclusive} also needs to be set to FALSE.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see CameraCharacteristics#DEPTH_DEPTH_IS_EXCLUSIVE @hide */ DEPTH_AVAILABLE_DYNAMIC_DEPTH_STREAM_CONFIGURATIONS : "null", /** <p>This lists the minimum frame duration for each format/size combination for dynamic depth output streams.</p> <p>This should correspond to the frame duration when only that stream is active, with all processing (typically in android.*.mode) set to either OFF or FAST.</p> <p>When multiple streams are used in a request, the minimum frame duration will be max(individual stream min durations).</p> <p>The minimum frame duration of a stream (of a particular format, size) is the same regardless of whether the stream is input or output.</p> <p><b>Units</b>: (format, width, height, ns) x n</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @hide */ DEPTH_AVAILABLE_DYNAMIC_DEPTH_MIN_FRAME_DURATIONS : "null", /** <p>This lists the maximum stall duration for each output format/size combination for dynamic depth streams.</p> <p>A stall duration is how much extra time would get added to the normal minimum frame duration for a repeating request that has streams with non-zero stall.</p> <p>All dynamic depth output streams may have a nonzero stall duration.</p> <p><b>Units</b>: (format, width, height, ns) x n</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @hide */ DEPTH_AVAILABLE_DYNAMIC_DEPTH_STALL_DURATIONS : "null", /** <p>String containing the ids of the underlying physical cameras.</p> <p>For a logical camera, this is concatenation of all underlying physical camera IDs. The null terminator for physical camera ID must be preserved so that the whole string can be tokenized using '\0' to generate list of physical camera IDs.</p> <p>For example, if the physical camera IDs of the logical camera are "2" and "3", the value of this tag will be ['2', '\0', '3', '\0'].</p> <p>The number of physical camera IDs must be no less than 2.</p> <p><b>Units</b>: UTF-8 null-terminated string</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @hide */ LOGICAL_MULTI_CAMERA_PHYSICAL_IDS : "null", /** <p>The accuracy of frame timestamp synchronization between physical cameras</p> <p>The accuracy of the frame timestamp synchronization determines the physical cameras' ability to start exposure at the same time. If the sensorSyncType is CALIBRATED, the physical camera sensors usually run in master-slave mode so that their shutter time is synchronized. For APPROXIMATE sensorSyncType, the camera sensors usually run in master-master mode, and there could be offset between their start of exposure.</p> <p>In both cases, all images generated for a particular capture request still carry the same timestamps, so that they can be used to look up the matching frame number and onCaptureStarted callback.</p> <p>This tag is only applicable if the logical camera device supports concurrent physical streams from different physical cameras.</p> <p><b>Possible values:</b> <ul> <li>{@link #LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE_APPROXIMATE APPROXIMATE}</li> <li>{@link #LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE_CALIBRATED CALIBRATED}</li> </ul></p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see #LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE_APPROXIMATE @see #LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE_CALIBRATED */ LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE : "null", /** <p>List of distortion correction modes for {@link android.hardware.camera2.CaptureRequest#DISTORTION_CORRECTION_MODE android.distortionCorrection.mode} that are supported by this camera device.</p> <p>No device is required to support this API; such devices will always list only 'OFF'. All devices that support this API will list both FAST and HIGH_QUALITY.</p> <p><b>Range of valid values:</b><br> Any value listed in {@link android.hardware.camera2.CaptureRequest#DISTORTION_CORRECTION_MODE android.distortionCorrection.mode}</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> @see CaptureRequest#DISTORTION_CORRECTION_MODE */ DISTORTION_CORRECTION_AVAILABLE_MODES : "null", /** <p>The available HEIC (ISO/IEC 23008-12) stream configurations that this camera device supports (i.e. format, width, height, output/input stream).</p> <p>The configurations are listed as <code>(format, width, height, input?)</code> tuples.</p> <p>If the camera device supports HEIC image format, it will support identical set of stream combinations involving HEIC image format, compared to the combinations involving JPEG image format as required by the device's hardware level and capabilities.</p> <p>All the static, control, and dynamic metadata tags related to JPEG apply to HEIC formats. Configuring JPEG and HEIC streams at the same time is not supported.</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @hide */ HEIC_AVAILABLE_HEIC_STREAM_CONFIGURATIONS : "null", /** <p>This lists the minimum frame duration for each format/size combination for HEIC output formats.</p> <p>This should correspond to the frame duration when only that stream is active, with all processing (typically in android.*.mode) set to either OFF or FAST.</p> <p>When multiple streams are used in a request, the minimum frame duration will be max(individual stream min durations).</p> <p>See {@link android.hardware.camera2.CaptureRequest#SENSOR_FRAME_DURATION android.sensor.frameDuration} and android.scaler.availableStallDurations for more details about calculating the max frame rate.</p> <p><b>Units</b>: (format, width, height, ns) x n</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @see CaptureRequest#SENSOR_FRAME_DURATION @hide */ HEIC_AVAILABLE_HEIC_MIN_FRAME_DURATIONS : "null", /** <p>This lists the maximum stall duration for each output format/size combination for HEIC streams.</p> <p>A stall duration is how much extra time would get added to the normal minimum frame duration for a repeating request that has streams with non-zero stall.</p> <p>This functions similarly to android.scaler.availableStallDurations for HEIC streams.</p> <p>All HEIC output stream formats may have a nonzero stall duration.</p> <p><b>Units</b>: (format, width, height, ns) x n</p> <p><b>Optional</b> - The value for this key may be {@code null} on some devices.</p> <p><b>Limited capability</b> - Present on all camera devices that report being at least {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED HARDWARE_LEVEL_LIMITED} devices in the {@link android.hardware.camera2.CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p> @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL @hide */ HEIC_AVAILABLE_HEIC_STALL_DURATIONS : "null", /**Returns a copy of the underlying {@link android.hardware.camera2.CameraMetadataNative}. @hide */ getNativeCopy : function( ) {}, /**Get a camera characteristics field value. <p>The field definitions can be found in {@link android.hardware.camera2.CameraCharacteristics}.</p> <p>Querying the value for the same key more than once will return a value which is equal to the previous queried value.</p> @param {Object {android.hardware.camera2.CameraCharacteristics.Key}} key The characteristics field to read. @param key The characteristics field to read. @return {Object {java.lang.Object}} The value of that key, or {@code null} if the field is not set. */ get : function( ) {}, /**{@inheritDoc} */ getKeys : function( ) {}, /**<p>Returns a subset of the list returned by {@link #getKeys} with all keys that require camera clients to obtain the {@link android.Manifest.permission#CAMERA} permission. </p> <p>If an application calls {@link android.hardware.camera2.CameraManager#getCameraCharacteristics} without holding the {@link android.Manifest.permission#CAMERA} permission, all keys in this list will not be available, and calling {@link #get} will return null for those keys. If the application obtains the {@link android.Manifest.permission#CAMERA} permission, then the CameraCharacteristics from a call to a subsequent {@link android.hardware.camera2.CameraManager#getCameraCharacteristics} will have the keys available.</p> <p>The list returned is not modifiable, so any attempts to modify it will throw a {@code UnsupportedOperationException}.</p> <p>Each key is only listed once in the list. The order of the keys is undefined.</p> @return {Object {java.util.List}} List of camera characteristic keys that require the {@link android.Manifest.permission#CAMERA} permission. The list can be empty in case there are no currently present keys that need additional permission. */ getKeysNeedingPermission : function( ) {}, /**<p>Retrieve camera device recommended stream configuration map {@link RecommendedStreamConfigurationMap} for a given use case.</p> <p>The stream configurations advertised here are efficient in terms of power and performance for common use cases like preview, video, snapshot, etc. The recommended maps are usually only small subsets of the exhaustive list provided in {@link #SCALER_STREAM_CONFIGURATION_MAP} and suggested for a particular use case by the camera device implementation. For further information about the expected configurations in various scenarios please refer to: <ul> <li>{@link RecommendedStreamConfigurationMap#USECASE_PREVIEW}</li> <li>{@link RecommendedStreamConfigurationMap#USECASE_RECORD}</li> <li>{@link RecommendedStreamConfigurationMap#USECASE_VIDEO_SNAPSHOT}</li> <li>{@link RecommendedStreamConfigurationMap#USECASE_SNAPSHOT}</li> <li>{@link RecommendedStreamConfigurationMap#USECASE_RAW}</li> <li>{@link RecommendedStreamConfigurationMap#USECASE_ZSL}</li> <li>{@link RecommendedStreamConfigurationMap#USECASE_LOW_LATENCY_SNAPSHOT}</li> </ul> </p> <p>For example on how this can be used by camera clients to find out the maximum recommended preview and snapshot resolution, consider the following pseudo-code: </p> <pre><code> public static Size getMaxSize(Size... sizes) { if (sizes == null || sizes.length == 0) { throw new IllegalArgumentException("sizes was empty"); } Size sz = sizes[0]; for (Size size : sizes) { if (size.getWidth() * size.getHeight() > sz.getWidth() * sz.getHeight()) { sz = size; } } return sz; } CameraCharacteristics characteristics = cameraManager.getCameraCharacteristics(cameraId); RecommendedStreamConfigurationMap previewConfig = characteristics.getRecommendedStreamConfigurationMap( RecommendedStreamConfigurationMap.USECASE_PREVIEW); RecommendedStreamConfigurationMap snapshotConfig = characteristics.getRecommendedStreamConfigurationMap( RecommendedStreamConfigurationMap.USECASE_SNAPSHOT); if ((previewConfig != null) && (snapshotConfig != null)) { Set<Size> snapshotSizeSet = snapshotConfig.getOutputSizes( ImageFormat.JPEG); Size[] snapshotSizes = new Size[snapshotSizeSet.size()]; snapshotSizes = snapshotSizeSet.toArray(snapshotSizes); Size suggestedMaxJpegSize = getMaxSize(snapshotSizes); Set<Size> previewSizeSet = snapshotConfig.getOutputSizes( ImageFormat.PRIVATE); Size[] previewSizes = new Size[previewSizeSet.size()]; previewSizes = previewSizeSet.toArray(previewSizes); Size suggestedMaxPreviewSize = getMaxSize(previewSizes); } </code></pre> <p>Similar logic can be used for other use cases as well.</p> <p>Support for recommended stream configurations is optional. In case there a no suggested configurations for the particular use case, please refer to {@link #SCALER_STREAM_CONFIGURATION_MAP} for the exhaustive available list.</p> @param {Number} usecase Use case id. @throws IllegalArgumentException In case the use case argument is invalid. @return {Object {android.hardware.camera2.params.RecommendedStreamConfigurationMap}} Valid {@link RecommendedStreamConfigurationMap} or null in case the camera device doesn't have any recommendation for this use case or the recommended configurations are invalid. */ getRecommendedStreamConfigurationMap : function( ) {}, /**<p>Returns a subset of {@link #getAvailableCaptureRequestKeys} keys that the camera device can pass as part of the capture session initialization.</p> <p>This list includes keys that are difficult to apply per-frame and can result in unexpected delays when modified during the capture session lifetime. Typical examples include parameters that require a time-consuming hardware re-configuration or internal camera pipeline change. For performance reasons we suggest clients to pass their initial values as part of {@link SessionConfiguration#setSessionParameters}. Once the camera capture session is enabled it is also recommended to avoid changing them from their initial values set in {@link SessionConfiguration#setSessionParameters }. Control over session parameters can still be exerted in capture requests but clients should be aware and expect delays during their application. An example usage scenario could look like this:</p> <ul> <li>The camera client starts by querying the session parameter key list via {@link android.hardware.camera2.CameraCharacteristics#getAvailableSessionKeys }.</li> <li>Before triggering the capture session create sequence, a capture request must be built via {@link android.hardware.camera2.CameraDevice#createCaptureRequest } using an appropriate template matching the particular use case.</li> <li>The client should go over the list of session parameters and check whether some of the keys listed matches with the parameters that they intend to modify as part of the first capture request.</li> <li>If there is no such match, the capture request can be passed unmodified to {@link SessionConfiguration#setSessionParameters }.</li> <li>If matches do exist, the client should update the respective values and pass the request to {@link SessionConfiguration#setSessionParameters }.</li> <li>After the capture session initialization completes the session parameter key list can continue to serve as reference when posting or updating further requests. As mentioned above further changes to session parameters should ideally be avoided, if updates are necessary however clients could expect a delay/glitch during the parameter switch.</li> </ul> <p>The list returned is not modifiable, so any attempts to modify it will throw a {@code UnsupportedOperationException}.</p> <p>Each key is only listed once in the list. The order of the keys is undefined.</p> @return {Object {java.util.List}} List of keys that can be passed during capture session initialization. In case the camera device doesn't support such keys the list can be null. */ getAvailableSessionKeys : function( ) {}, /**<p>Returns a subset of {@link #getAvailableCaptureRequestKeys} keys that can be overridden for physical devices backing a logical multi-camera.</p> <p>This is a subset of android.request.availableRequestKeys which contains a list of keys that can be overridden using {@link android.hardware.camera2.CaptureRequest.Builder#setPhysicalCameraKey }. The respective value of such request key can be obtained by calling {@link android.hardware.camera2.CaptureRequest.Builder#getPhysicalCameraKey }. Capture requests that contain individual physical device requests must be built via {@link android.hardware.camera2.CameraDevice#createCaptureRequest(int, Set)}. Such extended capture requests can be passed only to {@link android.hardware.camera2.CameraCaptureSession#capture } or {@link android.hardware.camera2.CameraCaptureSession#captureBurst } and not to {@link android.hardware.camera2.CameraCaptureSession#setRepeatingRequest } or {@link android.hardware.camera2.CameraCaptureSession#setRepeatingBurst }.</p> <p>The list returned is not modifiable, so any attempts to modify it will throw a {@code UnsupportedOperationException}.</p> <p>Each key is only listed once in the list. The order of the keys is undefined.</p> @return {Object {java.util.List}} List of keys that can be overridden in individual physical device requests. In case the camera device doesn't support such keys the list can be null. */ getAvailablePhysicalCameraRequestKeys : function( ) {}, /**Returns the list of keys supported by this {@link android.hardware.camera2.CameraDevice} for querying with a {@link android.hardware.camera2.CaptureRequest}. <p>The list returned is not modifiable, so any attempts to modify it will throw a {@code UnsupportedOperationException}.</p> <p>Each key is only listed once in the list. The order of the keys is undefined.</p> <p>Note that there is no {@code getAvailableCameraCharacteristicsKeys()} -- use {@link #getKeys}() instead.</p> @return {Object {java.util.List}} List of keys supported by this CameraDevice for CaptureRequests. */ getAvailableCaptureRequestKeys : function( ) {}, /**Returns the list of keys supported by this {@link android.hardware.camera2.CameraDevice} for querying with a {@link android.hardware.camera2.CaptureResult}. <p>The list returned is not modifiable, so any attempts to modify it will throw a {@code UnsupportedOperationException}.</p> <p>Each key is only listed once in the list. The order of the keys is undefined.</p> <p>Note that there is no {@code getAvailableCameraCharacteristicsKeys()} -- use {@link #getKeys}() instead.</p> @return {Object {java.util.List}} List of keys supported by this CameraDevice for CaptureResults. */ getAvailableCaptureResultKeys : function( ) {}, /**Returns the set of physical camera ids that this logical {@link android.hardware.camera2.CameraDevice} is made up of. <p>A camera device is a logical camera if it has REQUEST_AVAILABLE_CAPABILITIES_LOGICAL_MULTI_CAMERA capability. If the camera device doesn't have the capability, the return value will be an empty set. </p> <p>Prior to API level 29, all returned IDs are guaranteed to be returned by {@link android.hardware.camera2.CameraManager#getCameraIdList}, and can be opened directly by {@link android.hardware.camera2.CameraManager#openCamera}. Starting from API level 29, for each of the returned ID, if it's also returned by {@link android.hardware.camera2.CameraManager#getCameraIdList}, it can be used as a standalone camera by {@link android.hardware.camera2.CameraManager#openCamera}. Otherwise, the camera ID can only be used as part of the current logical camera.</p> <p>The set returned is not modifiable, so any attempts to modify it will throw a {@code UnsupportedOperationException}.</p> @return {Object {java.util.Set}} Set of physical camera ids for this logical camera device. */ getPhysicalCameraIds : function( ) {}, };