Parameters
open classParameters
kotlin.Any | |
↳ | android.hardware.Camera.Parameters |
Camera service settings.
To make camera parameters take effect, applications have to call Camera.setParameters(Camera.Parameters)
. For example, after Camera.Parameters.setWhiteBalance
is called, white balance is not actually changed until Camera.setParameters(Camera.Parameters)
is called with the changed parameters object.
Different devices may have different camera capabilities, such as picture size or flash modes. The application should query the camera capabilities before setting parameters. For example, the application should call Camera.Parameters.getSupportedColorEffects()
before calling Camera.Parameters.setColorEffect(String)
. If the camera does not support color effects, Camera.Parameters.getSupportedColorEffects()
will return null.
Summary
Constants | |
---|---|
static String | |
static String | |
static String | |
static String | |
static String | |
static String | |
static String | |
static String | |
static String | |
static String | |
static String | |
static String | |
static String | |
static String |
Flash will be fired automatically when required. |
static String |
Flash will not be fired. |
static String |
Flash will always be fired during snapshot. |
static String |
Flash will be fired in red-eye reduction mode. |
static String |
Constant emission of light during preview, auto-focus and snapshot. |
static Int |
The array index of far focus distance for use with |
static Int |
The array index of near focus distance for use with |
static Int |
The array index of optimal focus distance for use with |
static String |
Auto-focus mode. |
static String |
Continuous auto focus mode intended for taking pictures. |
static String |
Continuous auto focus mode intended for video recording. |
static String |
Extended depth of field (EDOF). |
static String |
Focus is fixed. |
static String |
Focus is set at infinity. |
static String |
Macro (close-up) focus mode. |
static Int |
The array index of maximum preview fps for use with |
static Int |
The array index of minimum preview fps for use with |
static String |
Take photos of fast moving objects. |
static String |
Scene mode is off. |
static String |
Applications are looking for a barcode. |
static String |
Take pictures on the beach. |
static String |
Capture the naturally warm color of scenes lit by candles. |
static String |
For shooting firework displays. |
static String |
Capture a scene using high dynamic range imaging techniques. |
static String |
Take pictures on distant objects. |
static String |
Take photos at night. |
static String |
Take people pictures at night. |
static String |
Take indoor low-light shot. |
static String |
Take people pictures. |
static String |
Take pictures on the snow. |
static String |
Take photos of fast moving objects. |
static String |
Avoid blurry pictures (for example, due to hand shake). |
static String |
Take sunset photos. |
static String |
Take photos in a theater. |
static String | |
static String | |
static String | |
static String | |
static String | |
static String | |
static String | |
static String |
Public methods | |
---|---|
open String! |
flatten() Creates a single string with all the parameters set in this Parameters object. |
open String! |
Returns the value of a String parameter. |
open String! |
Gets the current antibanding setting. |
open Boolean |
Gets the state of the auto-exposure lock. |
open Boolean |
Gets the state of the auto-white balance lock. |
open String! |
Gets the current color effect setting. |
open Int |
Gets the current exposure compensation index. |
open Float |
Gets the exposure compensation step. |
open String! |
Gets the current flash mode setting. |
open Float |
Gets the focal length (in millimeter) of the camera. |
open MutableList<Camera.Area!>! |
Gets the current focus areas. |
open Unit |
getFocusDistances(output: FloatArray!) Gets the distances from the camera to where an object appears to be in focus. |
open String! |
Gets the current focus mode setting. |
open Float |
Gets the horizontal angle of view in degrees. |
open Int |
Returns the value of an integer parameter. |
open Int |
Returns the quality setting for the JPEG picture. |
open Int |
Returns the quality setting for the EXIF thumbnail in Jpeg picture. |
open Camera.Size! |
Returns the dimensions for EXIF thumbnail in Jpeg picture. |
open Int |
Gets the maximum exposure compensation index. |
open Int |
Gets the maximum number of detected faces supported. |
open Int |
Gets the maximum number of focus areas supported. |
open Int |
Gets the maximum number of metering areas supported. |
open Int |
Gets the maximum zoom value allowed for snapshot. |
open MutableList<Camera.Area!>! |
Gets the current metering areas. |
open Int |
Gets the minimum exposure compensation index. |
open Int |
Returns the image format for pictures. |
open Camera.Size! |
Returns the dimension setting for pictures. |
open Camera.Size! |
Returns the preferred or recommended preview size (width and height) in pixels for video recording. |
open Int |
Returns the image format for preview frames got from |
open Unit |
getPreviewFpsRange(range: IntArray!) Returns the current minimum and maximum preview fps. |
open Int |
Returns the setting for the rate at which preview frames are received. |
open Camera.Size! |
Returns the dimensions setting for preview pictures. |
open String! |
Gets the current scene mode setting. |
open MutableList<String!>! |
Gets the supported antibanding values. |
open MutableList<String!>! |
Gets the supported color effects. |
open MutableList<String!>! |
Gets the supported flash modes. |
open MutableList<String!>! |
Gets the supported focus modes. |
open MutableList<Camera.Size!>! |
Gets the supported jpeg thumbnail sizes. |
open MutableList<Int!>! |
Gets the supported picture formats. |
open MutableList<Camera.Size!>! |
Gets the supported picture sizes. |
open MutableList<Int!>! |
Gets the supported preview formats. |
open MutableList<IntArray!>! |
Gets the supported preview fps (frame-per-second) ranges. |
open MutableList<Int!>! |
Gets the supported preview frame rates. |
open MutableList<Camera.Size!>! |
Gets the supported preview sizes. |
open MutableList<String!>! |
Gets the supported scene modes. |
open MutableList<Camera.Size!>! |
Gets the supported video frame sizes that can be used by MediaRecorder. |
open MutableList<String!>! |
Gets the supported white balance. |
open Float |
Gets the vertical angle of view in degrees. |
open Boolean |
Get the current state of video stabilization. |
open String! |
Gets the current white balance setting. |
open Int |
getZoom() Gets current zoom value. |
open MutableList<Int!>! |
Gets the zoom ratios of all zoom values. |
open Boolean |
Returns true if auto-exposure locking is supported. |
open Boolean |
Returns true if auto-white balance locking is supported. |
open Boolean |
Returns true if smooth zoom is supported. |
open Boolean |
Returns true if video snapshot is supported. |
open Boolean |
Returns true if video stabilization is supported. |
open Boolean |
Returns true if zoom is supported. |
open Unit | |
open Unit |
Removes GPS latitude, longitude, altitude, and timestamp from the parameters. |
open Unit |
Sets an integer parameter. |
open Unit |
Sets a String parameter. |
open Unit |
setAntibanding(antibanding: String!) Sets the antibanding. |
open Unit |
setAutoExposureLock(toggle: Boolean) Sets the auto-exposure lock state. |
open Unit |
setAutoWhiteBalanceLock(toggle: Boolean) Sets the auto-white balance lock state. |
open Unit |
setColorEffect(value: String!) Sets the current color effect setting. |
open Unit |
setExposureCompensation(value: Int) Sets the exposure compensation index. |
open Unit |
setFlashMode(value: String!) Sets the flash mode. |
open Unit |
setFocusAreas(focusAreas: MutableList<Camera.Area!>!) Sets focus areas. |
open Unit |
setFocusMode(value: String!) Sets the focus mode. |
open Unit |
setGpsAltitude(altitude: Double) Sets GPS altitude. |
open Unit |
setGpsLatitude(latitude: Double) Sets GPS latitude coordinate. |
open Unit |
setGpsLongitude(longitude: Double) Sets GPS longitude coordinate. |
open Unit |
setGpsProcessingMethod(processing_method: String!) Sets GPS processing method. |
open Unit |
setGpsTimestamp(timestamp: Long) Sets GPS timestamp. |
open Unit |
setJpegQuality(quality: Int) Sets Jpeg quality of captured picture. |
open Unit |
setJpegThumbnailQuality(quality: Int) Sets the quality of the EXIF thumbnail in Jpeg picture. |
open Unit |
setJpegThumbnailSize(width: Int, height: Int) Sets the dimensions for EXIF thumbnail in Jpeg picture. |
open Unit |
setMeteringAreas(meteringAreas: MutableList<Camera.Area!>!) Sets metering areas. |
open Unit |
setPictureFormat(pixel_format: Int) Sets the image format for pictures. |
open Unit |
setPictureSize(width: Int, height: Int) Sets the dimensions for pictures. |
open Unit |
setPreviewFormat(pixel_format: Int) Sets the image format for preview pictures. |
open Unit |
setPreviewFpsRange(min: Int, max: Int) Sets the minimum and maximum preview fps. |
open Unit |
setPreviewFrameRate(fps: Int) Sets the rate at which preview frames are received. |
open Unit |
setPreviewSize(width: Int, height: Int) Sets the dimensions for preview pictures. |
open Unit |
setRecordingHint(hint: Boolean) Sets recording mode hint. |
open Unit |
setRotation(rotation: Int) Sets the clockwise rotation angle in degrees relative to the orientation of the camera. |
open Unit |
setSceneMode(value: String!) Sets the scene mode. |
open Unit |
setVideoStabilization(toggle: Boolean) Enables and disables video stabilization. |
open Unit |
setWhiteBalance(value: String!) Sets the white balance. |
open Unit |
Sets current zoom value. |
open Unit |
Takes a flattened string of parameters and adds each one to this Parameters object. |
Constants
EFFECT_BLACKBOARD
static valEFFECT_BLACKBOARD: String
Deprecated: Deprecated in Java.
Value: "blackboard"
EFFECT_NEGATIVE
static valEFFECT_NEGATIVE: String
Deprecated: Deprecated in Java.
Value: "negative"
EFFECT_POSTERIZE
static valEFFECT_POSTERIZE: String
Deprecated: Deprecated in Java.
Value: "posterize"
EFFECT_SOLARIZE
static valEFFECT_SOLARIZE: String
Deprecated: Deprecated in Java.
Value: "solarize"
EFFECT_WHITEBOARD
static valEFFECT_WHITEBOARD: String
Deprecated: Deprecated in Java.
Value: "whiteboard"
FLASH_MODE_AUTO
static valFLASH_MODE_AUTO: String
Deprecated: Deprecated in Java.
Flash will be fired automatically when required. The flash may be fired during preview, auto-focus, or snapshot depending on the driver.
Value: "auto"
FLASH_MODE_OFF
static valFLASH_MODE_OFF: String
Deprecated: Deprecated in Java.
Flash will not be fired.
Value: "off"
FLASH_MODE_ON
static valFLASH_MODE_ON: String
Deprecated: Deprecated in Java.
Flash will always be fired during snapshot. The flash may also be fired during preview or auto-focus depending on the driver.
Value: "on"
FLASH_MODE_RED_EYE
static valFLASH_MODE_RED_EYE: String
Deprecated: Deprecated in Java.
Flash will be fired in red-eye reduction mode.
Value: "red-eye"
FLASH_MODE_TORCH
static valFLASH_MODE_TORCH: String
Deprecated: Deprecated in Java.
Constant emission of light during preview, auto-focus and snapshot. This can also be used for video recording.
Value: "torch"
FOCUS_DISTANCE_FAR_INDEX
static valFOCUS_DISTANCE_FAR_INDEX: Int
Deprecated: Deprecated in Java.
The array index of far focus distance for use with getFocusDistances(float[])
.
Value: 2
FOCUS_DISTANCE_NEAR_INDEX
static valFOCUS_DISTANCE_NEAR_INDEX: Int
Deprecated: Deprecated in Java.
The array index of near focus distance for use with getFocusDistances(float[])
.
Value: 0
FOCUS_DISTANCE_OPTIMAL_INDEX
static valFOCUS_DISTANCE_OPTIMAL_INDEX: Int
Deprecated: Deprecated in Java.
The array index of optimal focus distance for use with getFocusDistances(float[])
.
Value: 1
FOCUS_MODE_AUTO
static valFOCUS_MODE_AUTO: String
Deprecated: Deprecated in Java.
Auto-focus mode. Applications should call autoFocus(android.hardware.Camera.AutoFocusCallback)
to start the focus in this mode.
Value: "auto"
FOCUS_MODE_CONTINUOUS_PICTURE
static valFOCUS_MODE_CONTINUOUS_PICTURE: String
Deprecated: Deprecated in Java.
Continuous auto focus mode intended for taking pictures. The camera continuously tries to focus. The speed of focus change is more aggressive than FOCUS_MODE_CONTINUOUS_VIDEO
. Auto focus starts when the parameter is set.
Applications can call autoFocus(android.hardware.Camera.AutoFocusCallback)
in this mode. If the autofocus is in the middle of scanning, the focus callback will return when it completes. If the autofocus is not scanning, the focus callback will immediately return with a boolean that indicates whether the focus is sharp or not. The apps can then decide if they want to take a picture immediately or to change the focus mode to auto, and run a full autofocus cycle. The focus position is locked after autoFocus call. If applications want to resume the continuous focus, cancelAutoFocus must be called. Restarting the preview will not resume the continuous autofocus. To stop continuous focus, applications should change the focus mode to other modes.
Value: "continuous-picture"
See Also
FOCUS_MODE_CONTINUOUS_VIDEO
static valFOCUS_MODE_CONTINUOUS_VIDEO: String
Deprecated: Deprecated in Java.
Continuous auto focus mode intended for video recording. The camera continuously tries to focus. This is the best choice for video recording because the focus changes smoothly . Applications still can call takePicture(android.hardware.Camera.ShutterCallback,android.hardware.Camera.PictureCallback,android.hardware.Camera.PictureCallback)
in this mode but the subject may not be in focus. Auto focus starts when the parameter is set.
Since API level 14, applications can call autoFocus(android.hardware.Camera.AutoFocusCallback)
in this mode. The focus callback will immediately return with a boolean that indicates whether the focus is sharp or not. The focus position is locked after autoFocus call. If applications want to resume the continuous focus, cancelAutoFocus must be called. Restarting the preview will not resume the continuous autofocus. To stop continuous focus, applications should change the focus mode to other modes.
Value: "continuous-video"
See Also
FOCUS_MODE_EDOF
static valFOCUS_MODE_EDOF: String
Deprecated: Deprecated in Java.
Extended depth of field (EDOF). Focusing is done digitally and continuously. Applications should not call autoFocus(android.hardware.Camera.AutoFocusCallback)
in this mode.
Value: "edof"
FOCUS_MODE_FIXED
static valFOCUS_MODE_FIXED: String
Deprecated: Deprecated in Java.
Focus is fixed. The camera is always in this mode if the focus is not adjustable. If the camera has auto-focus, this mode can fix the focus, which is usually at hyperfocal distance. Applications should not call autoFocus(android.hardware.Camera.AutoFocusCallback)
in this mode.
Value: "fixed"
FOCUS_MODE_INFINITY
static valFOCUS_MODE_INFINITY: String
Deprecated: Deprecated in Java.
Focus is set at infinity. Applications should not call autoFocus(android.hardware.Camera.AutoFocusCallback)
in this mode.
Value: "infinity"
FOCUS_MODE_MACRO
static valFOCUS_MODE_MACRO: String
Deprecated: Deprecated in Java.
Macro (close-up) focus mode. Applications should call autoFocus(android.hardware.Camera.AutoFocusCallback)
to start the focus in this mode.
Value: "macro"
PREVIEW_FPS_MAX_INDEX
static valPREVIEW_FPS_MAX_INDEX: Int
Deprecated: Deprecated in Java.
The array index of maximum preview fps for use with getPreviewFpsRange(int[])
or getSupportedPreviewFpsRange()
.
Value: 1
PREVIEW_FPS_MIN_INDEX
static valPREVIEW_FPS_MIN_INDEX: Int
Deprecated: Deprecated in Java.
The array index of minimum preview fps for use with getPreviewFpsRange(int[])
or getSupportedPreviewFpsRange()
.
Value: 0
SCENE_MODE_ACTION
static valSCENE_MODE_ACTION: String
Deprecated: Deprecated in Java.
Take photos of fast moving objects. Same as SCENE_MODE_SPORTS
.
Value: "action"
SCENE_MODE_AUTO
static valSCENE_MODE_AUTO: String
Deprecated: Deprecated in Java.
Scene mode is off.
Value: "auto"
SCENE_MODE_BARCODE
static valSCENE_MODE_BARCODE: String
Deprecated: Deprecated in Java.
Applications are looking for a barcode. Camera driver will be optimized for barcode reading.
Value: "barcode"
SCENE_MODE_BEACH
static valSCENE_MODE_BEACH: String
Deprecated: Deprecated in Java.
Take pictures on the beach.
Value: "beach"
SCENE_MODE_CANDLELIGHT
static valSCENE_MODE_CANDLELIGHT: String
Deprecated: Deprecated in Java.
Capture the naturally warm color of scenes lit by candles.
Value: "candlelight"
SCENE_MODE_FIREWORKS
static valSCENE_MODE_FIREWORKS: String
Deprecated: Deprecated in Java.
For shooting firework displays.
Value: "fireworks"
SCENE_MODE_HDR
static valSCENE_MODE_HDR: String
Deprecated: Deprecated in Java.
Capture a scene using high dynamic range imaging techniques. The camera will return an image that has an extended dynamic range compared to a regular capture. Capturing such an image may take longer than a regular capture.
Value: "hdr"
SCENE_MODE_LANDSCAPE
static valSCENE_MODE_LANDSCAPE: String
Deprecated: Deprecated in Java.
Take pictures on distant objects.
Value: "landscape"
SCENE_MODE_NIGHT
static valSCENE_MODE_NIGHT: String
Deprecated: Deprecated in Java.
Take photos at night.
Value: "night"
SCENE_MODE_NIGHT_PORTRAIT
static valSCENE_MODE_NIGHT_PORTRAIT: String
Deprecated: Deprecated in Java.
Take people pictures at night.
Value: "night-portrait"
SCENE_MODE_PARTY
static valSCENE_MODE_PARTY: String
Deprecated: Deprecated in Java.
Take indoor low-light shot.
Value: "party"
SCENE_MODE_PORTRAIT
static valSCENE_MODE_PORTRAIT: String
Deprecated: Deprecated in Java.
Take people pictures.
Value: "portrait"
SCENE_MODE_SNOW
static valSCENE_MODE_SNOW: String
Deprecated: Deprecated in Java.
Take pictures on the snow.
Value: "snow"
SCENE_MODE_SPORTS
static valSCENE_MODE_SPORTS: String
Deprecated: Deprecated in Java.
Take photos of fast moving objects. Same as SCENE_MODE_ACTION
.
Value: "sports"
SCENE_MODE_STEADYPHOTO
static valSCENE_MODE_STEADYPHOTO: String
Deprecated: Deprecated in Java.
Avoid blurry pictures (for example, due to hand shake).
Value: "steadyphoto"
SCENE_MODE_SUNSET
static valSCENE_MODE_SUNSET: String
Deprecated: Deprecated in Java.
Take sunset photos.
Value: "sunset"
SCENE_MODE_THEATRE
static valSCENE_MODE_THEATRE: String
Deprecated: Deprecated in Java.
Take photos in a theater. Flash light is off.
Value: "theatre"
WHITE_BALANCE_AUTO
static valWHITE_BALANCE_AUTO: String
Deprecated: Deprecated in Java.
Value: "auto"
WHITE_BALANCE_CLOUDY_DAYLIGHT
static valWHITE_BALANCE_CLOUDY_DAYLIGHT: String
Deprecated: Deprecated in Java.
Value: "cloudy-daylight"
WHITE_BALANCE_DAYLIGHT
static valWHITE_BALANCE_DAYLIGHT: String
Deprecated: Deprecated in Java.
Value: "daylight"
WHITE_BALANCE_FLUORESCENT
static valWHITE_BALANCE_FLUORESCENT: String
Deprecated: Deprecated in Java.
Value: "fluorescent"
WHITE_BALANCE_INCANDESCENT
static valWHITE_BALANCE_INCANDESCENT: String
Deprecated: Deprecated in Java.
Value: "incandescent"
WHITE_BALANCE_SHADE
static valWHITE_BALANCE_SHADE: String
Deprecated: Deprecated in Java.
Value: "shade"
WHITE_BALANCE_TWILIGHT
static valWHITE_BALANCE_TWILIGHT: String
Deprecated: Deprecated in Java.
Value: "twilight"
WHITE_BALANCE_WARM_FLUORESCENT
static valWHITE_BALANCE_WARM_FLUORESCENT: String
Deprecated: Deprecated in Java.
Value: "warm-fluorescent"
Public methods
flatten
open funflatten(): String!
Deprecated: Deprecated in Java.
Creates a single string with all the parameters set in this Parameters object.
The unflatten(java.lang.String)
method does the reverse.
Return | |
---|---|
String! |
a String with all values from this Parameters object, in semi-colon delimited key-value pairs |
get
open funget(key: String!): String!
Deprecated: Deprecated in Java.
Returns the value of a String parameter.
Parameters | |
---|---|
key |
String!: the key name for the parameter |
Return | |
---|---|
String! |
the String value of the parameter |
getAntibanding
open fungetAntibanding(): String!
Deprecated: Deprecated in Java.
Gets the current antibanding setting.
Return | |
---|---|
String! |
current antibanding. null if antibanding setting is not supported. |
getAutoExposureLock
open fungetAutoExposureLock(): Boolean
Deprecated: Deprecated in Java.
Gets the state of the auto-exposure lock. Applications should check isAutoExposureLockSupported
before using this method. See setAutoExposureLock
for details about the lock.
Return | |
---|---|
Boolean |
State of the auto-exposure lock. Returns true if auto-exposure is currently locked, and false otherwise. |
See Also
getAutoWhiteBalanceLock
open fungetAutoWhiteBalanceLock(): Boolean
Deprecated: Deprecated in Java.
Gets the state of the auto-white balance lock. Applications should check isAutoWhiteBalanceLockSupported
before using this method. See setAutoWhiteBalanceLock
for details about the lock.
Return | |
---|---|
Boolean |
State of the auto-white balance lock. Returns true if auto-white balance is currently locked, and false otherwise. |
See Also
getColorEffect
open fungetColorEffect(): String!
Deprecated: Deprecated in Java.
Gets the current color effect setting.
Return | |
---|---|
String! |
current color effect. null if color effect setting is not supported. |
getExposureCompensation
open fungetExposureCompensation(): Int
Deprecated: Deprecated in Java.
Gets the current exposure compensation index.
Return | |
---|---|
Int |
current exposure compensation index. The range is getMinExposureCompensation to getMaxExposureCompensation . 0 means exposure is not adjusted. |
getExposureCompensationStep
open fungetExposureCompensationStep(): Float
Deprecated: Deprecated in Java.
Gets the exposure compensation step.
Return | |
---|---|
Float |
exposure compensation step. Applications can get EV by multiplying the exposure compensation index and step. Ex: if exposure compensation index is -6 and step is 0.333333333, EV is -2. |
getFlashMode
open fungetFlashMode(): String!
Deprecated: Deprecated in Java.
Gets the current flash mode setting.
Return | |
---|---|
String! |
current flash mode. null if flash mode setting is not supported. |
getFocalLength
open fungetFocalLength(): Float
Deprecated: Deprecated in Java.
Gets the focal length (in millimeter) of the camera.
Return | |
---|---|
Float |
the focal length. Returns -1.0 when the device doesn't report focal length information. |
getFocusAreas
open fungetFocusAreas(): MutableList<Camera.Area!>!
Deprecated: Deprecated in Java.
Gets the current focus areas. Camera driver uses the areas to decide focus.
Before using this API or setFocusAreas(java.util.List)
, apps should call getMaxNumFocusAreas()
to know the maximum number of focus areas first. If the value is 0, focus area is not supported.
Each focus area is a rectangle with specified weight. The direction is relative to the sensor orientation, that is, what the sensor sees. The direction is not affected by the rotation or mirroring of setDisplayOrientation(int)
. Coordinates of the rectangle range from -1000 to 1000. (-1000, -1000) is the upper left point. (1000, 1000) is the lower right point. The width and height of focus areas cannot be 0 or negative.
The weight must range from 1 to 1000. The weight should be interpreted as a per-pixel weight - all pixels in the area have the specified weight. This means a small area with the same weight as a larger area will have less influence on the focusing than the larger area. Focus areas can partially overlap and the driver will add the weights in the overlap region.
A special case of a null
focus area list means the driver is free to select focus targets as it wants. For example, the driver may use more signals to select focus areas and change them dynamically. Apps can set the focus area list to null
if they want the driver to completely control focusing.
Focus areas are relative to the current field of view (getZoom()
). No matter what the zoom level is, (-1000,-1000) represents the top of the currently visible camera frame. The focus area cannot be set to be outside the current field of view, even when using zoom.
Focus area only has effect if the current focus mode is FOCUS_MODE_AUTO
, FOCUS_MODE_MACRO
, FOCUS_MODE_CONTINUOUS_VIDEO
, or FOCUS_MODE_CONTINUOUS_PICTURE
.
Return | |
---|---|
MutableList<Camera.Area!>! |
a list of current focus areas |
getFocusDistances
open fungetFocusDistances(output: FloatArray!): Unit
Deprecated: Deprecated in Java.
Gets the distances from the camera to where an object appears to be in focus. The object is sharpest at the optimal focus distance. The depth of field is the far focus distance minus near focus distance.
Focus distances may change after calling autoFocus(android.hardware.Camera.AutoFocusCallback)
, cancelAutoFocus
, or startPreview()
. Applications can call getParameters()
and this method anytime to get the latest focus distances. If the focus mode is FOCUS_MODE_CONTINUOUS_VIDEO, focus distances may change from time to time.
This method is intended to estimate the distance between the camera and the subject. After autofocus, the subject distance may be within near and far focus distance. However, the precision depends on the camera hardware, autofocus algorithm, the focus area, and the scene. The error can be large and it should be only used as a reference.
Far focus distance >= optimal focus distance >= near focus distance. If the focus distance is infinity, the value will be Float.POSITIVE_INFINITY
.
Parameters | |
---|---|
output |
FloatArray!: focus distances in meters. output must be a float array with three elements. Near focus distance, optimal focus distance, and far focus distance will be filled in the array. |
getFocusMode
open fungetFocusMode(): String!
Deprecated: Deprecated in Java.
Gets the current focus mode setting.
Return | |
---|---|
String! |
current focus mode. This method will always return a non-null value. Applications should call autoFocus(android.hardware.Camera.AutoFocusCallback) to start the focus if focus mode is FOCUS_MODE_AUTO or FOCUS_MODE_MACRO. |
getHorizontalViewAngle
open fungetHorizontalViewAngle(): Float
Deprecated: Deprecated in Java.
Gets the horizontal angle of view in degrees.
Return | |
---|---|
Float |
horizontal angle of view. Returns -1.0 when the device doesn't report view angle information. |
getInt
open fungetInt(key: String!): Int
Deprecated: Deprecated in Java.
Returns the value of an integer parameter.
Parameters | |
---|---|
key |
String!: the key name for the parameter |
Return | |
---|---|
Int |
the int value of the parameter |
getJpegQuality
open fungetJpegQuality(): Int
Deprecated: Deprecated in Java.
Returns the quality setting for the JPEG picture.
Return | |
---|---|
Int |
the JPEG picture quality setting. |
getJpegThumbnailQuality
open fungetJpegThumbnailQuality(): Int
Deprecated: Deprecated in Java.
Returns the quality setting for the EXIF thumbnail in Jpeg picture.
Return | |
---|---|
Int |
the JPEG quality setting of the EXIF thumbnail. |
getJpegThumbnailSize
open fungetJpegThumbnailSize(): Camera.Size!
Deprecated: Deprecated in Java.
Returns the dimensions for EXIF thumbnail in Jpeg picture.
Return | |
---|---|
Camera.Size! |
a Size object with the height and width setting for the EXIF thumbnails |
getMaxExposureCompensation
open fungetMaxExposureCompensation(): Int
Deprecated: Deprecated in Java.
Gets the maximum exposure compensation index.
Return | |
---|---|
Int |
maximum exposure compensation index (>=0). If both this method and getMinExposureCompensation return 0, exposure compensation is not supported. |
getMaxNumDetectedFaces
open fungetMaxNumDetectedFaces(): Int
Deprecated: Deprecated in Java.
Gets the maximum number of detected faces supported. This is the maximum length of the list returned from FaceDetectionListener
. If the return value is 0, face detection of the specified type is not supported.
Return | |
---|---|
Int |
the maximum number of detected face supported by the camera. |
See Also
getMaxNumFocusAreas
open fungetMaxNumFocusAreas(): Int
Deprecated: Deprecated in Java.
Gets the maximum number of focus areas supported. This is the maximum length of the list in setFocusAreas(java.util.List)
and getFocusAreas()
.
Return | |
---|---|
Int |
the maximum number of focus areas supported by the camera. |
See Also
getMaxNumMeteringAreas
open fungetMaxNumMeteringAreas(): Int
Deprecated: Deprecated in Java.
Gets the maximum number of metering areas supported. This is the maximum length of the list in setMeteringAreas(java.util.List)
and getMeteringAreas()
.
Return | |
---|---|
Int |
the maximum number of metering areas supported by the camera. |
See Also
getMaxZoom
open fungetMaxZoom(): Int
Deprecated: Deprecated in Java.
Gets the maximum zoom value allowed for snapshot. This is the maximum value that applications can set to setZoom(int)
. Applications should call isZoomSupported
before using this method. This value may change in different preview size. Applications should call this again after setting preview size.
Return | |
---|---|
Int |
the maximum zoom value supported by the camera. |
getMeteringAreas
open fungetMeteringAreas(): MutableList<Camera.Area!>!
Deprecated: Deprecated in Java.
Gets the current metering areas. Camera driver uses these areas to decide exposure.
Before using this API or setMeteringAreas(java.util.List)
, apps should call getMaxNumMeteringAreas()
to know the maximum number of metering areas first. If the value is 0, metering area is not supported.
Each metering area is a rectangle with specified weight. The direction is relative to the sensor orientation, that is, what the sensor sees. The direction is not affected by the rotation or mirroring of setDisplayOrientation(int)
. Coordinates of the rectangle range from -1000 to 1000. (-1000, -1000) is the upper left point. (1000, 1000) is the lower right point. The width and height of metering areas cannot be 0 or negative.
The weight must range from 1 to 1000, and represents a weight for every pixel in the area. This means that a large metering area with the same weight as a smaller area will have more effect in the metering result. Metering areas can partially overlap and the driver will add the weights in the overlap region.
A special case of a null
metering area list means the driver is free to meter as it chooses. For example, the driver may use more signals to select metering areas and change them dynamically. Apps can set the metering area list to null
if they want the driver to completely control metering.
Metering areas are relative to the current field of view (getZoom()
). No matter what the zoom level is, (-1000,-1000) represents the top of the currently visible camera frame. The metering area cannot be set to be outside the current field of view, even when using zoom.
No matter what metering areas are, the final exposure are compensated by setExposureCompensation(int)
.
Return | |
---|---|
MutableList<Camera.Area!>! |
a list of current metering areas |
getMinExposureCompensation
open fungetMinExposureCompensation(): Int
Deprecated: Deprecated in Java.
Gets the minimum exposure compensation index.
Return | |
---|---|
Int |
minimum exposure compensation index (<=0). If both this method and getMaxExposureCompensation return 0, exposure compensation is not supported. |
getPictureFormat
open fungetPictureFormat(): Int
Deprecated: Deprecated in Java.
Returns the image format for pictures.
Return | |
---|---|
Int |
the picture format |
See Also
getPictureSize
open fungetPictureSize(): Camera.Size!
Deprecated: Deprecated in Java.
Returns the dimension setting for pictures.
Return | |
---|---|
Camera.Size! |
a Size object with the height and width setting for pictures |
getPreferredPreviewSizeForVideo
open fungetPreferredPreviewSizeForVideo(): Camera.Size!
Deprecated: Deprecated in Java.
Returns the preferred or recommended preview size (width and height) in pixels for video recording. Camcorder applications should set the preview size to a value that is not larger than the preferred preview size. In other words, the product of the width and height of the preview size should not be larger than that of the preferred preview size. In addition, we recommend to choose a preview size that has the same aspect ratio as the resolution of video to be recorded.
Return | |
---|---|
Camera.Size! |
the preferred preview size (width and height) in pixels for video recording if getSupportedVideoSizes() does not return null; otherwise, null is returned. |
See Also
getPreviewFormat
open fungetPreviewFormat(): Int
Deprecated: Deprecated in Java.
Returns the image format for preview frames got from PreviewCallback
.
Return | |
---|---|
Int |
the preview format. |
getPreviewFpsRange
open fungetPreviewFpsRange(range: IntArray!): Unit
Deprecated: Deprecated in Java.
Returns the current minimum and maximum preview fps. The values are one of the elements returned by getSupportedPreviewFpsRange
.
Return | |
---|---|
Unit |
range the minimum and maximum preview fps (scaled by 1000). |
getPreviewFrameRate
open fungetPreviewFrameRate(): Int
Deprecated: replaced by getPreviewFpsRange(int[])
Returns the setting for the rate at which preview frames are received. This is the target frame rate. The actual frame rate depends on the driver.
Return | |
---|---|
Int |
the frame rate setting (frames per second) |
getPreviewSize
open fungetPreviewSize(): Camera.Size!
Deprecated: Deprecated in Java.
Returns the dimensions setting for preview pictures.
Return | |
---|---|
Camera.Size! |
a Size object with the width and height setting for the preview picture |
getSceneMode
open fungetSceneMode(): String!
Deprecated: Deprecated in Java.
Gets the current scene mode setting.
Return | |
---|---|
String! |
one of SCENE_MODE_XXX string constant. null if scene mode setting is not supported. |
See Also
#SCENE_MODE_AUTO
#SCENE_MODE_ACTION
#SCENE_MODE_PORTRAIT
#SCENE_MODE_LANDSCAPE
#SCENE_MODE_NIGHT
#SCENE_MODE_NIGHT_PORTRAIT
#SCENE_MODE_THEATRE
#SCENE_MODE_BEACH
#SCENE_MODE_SNOW
#SCENE_MODE_SUNSET
#SCENE_MODE_STEADYPHOTO
#SCENE_MODE_FIREWORKS
#SCENE_MODE_SPORTS
#SCENE_MODE_PARTY
#SCENE_MODE_CANDLELIGHT
#SCENE_MODE_BARCODE
getSupportedAntibanding
open fungetSupportedAntibanding(): MutableList<String!>!
Deprecated: Deprecated in Java.
Gets the supported antibanding values.
Return | |
---|---|
MutableList<String!>! |
a list of supported antibanding values. null if antibanding setting is not supported. |
See Also
getSupportedColorEffects
open fungetSupportedColorEffects(): MutableList<String!>!
Deprecated: Deprecated in Java.
Gets the supported color effects.
Return | |
---|---|
MutableList<String!>! |
a list of supported color effects. null if color effect setting is not supported. |
See Also
getSupportedFlashModes
open fungetSupportedFlashModes(): MutableList<String!>!
Deprecated: Deprecated in Java.
Gets the supported flash modes.
Return | |
---|---|
MutableList<String!>! |
a list of supported flash modes. null if flash mode setting is not supported. |
See Also
getSupportedFocusModes
open fungetSupportedFocusModes(): MutableList<String!>!
Deprecated: Deprecated in Java.
Gets the supported focus modes.
Return | |
---|---|
MutableList<String!>! |
a list of supported focus modes. This method will always return a list with at least one element. |
See Also
getSupportedJpegThumbnailSizes
open fungetSupportedJpegThumbnailSizes(): MutableList<Camera.Size!>!
Deprecated: Deprecated in Java.
Gets the supported jpeg thumbnail sizes.
Return | |
---|---|
MutableList<Camera.Size!>! |
a list of Size object. This method will always return a list with at least two elements. Size 0,0 (no thumbnail) is always supported. |
getSupportedPictureFormats
open fungetSupportedPictureFormats(): MutableList<Int!>!
Deprecated: Deprecated in Java.
Gets the supported picture formats.
Return | |
---|---|
MutableList<Int!>! |
supported picture formats. This method will always return a list with at least one element. |
See Also
getSupportedPictureSizes
open fungetSupportedPictureSizes(): MutableList<Camera.Size!>!
Deprecated: Deprecated in Java.
Gets the supported picture sizes.
Return | |
---|---|
MutableList<Camera.Size!>! |
a list of supported picture sizes. This method will always return a list with at least one element. |
getSupportedPreviewFormats
open fungetSupportedPreviewFormats(): MutableList<Int!>!
Deprecated: Deprecated in Java.
Gets the supported preview formats. android.graphics.ImageFormat#NV21
is always supported. android.graphics.ImageFormat#YV12
is always supported since API level 12.
Return | |
---|---|
MutableList<Int!>! |
a list of supported preview formats. This method will always return a list with at least one element. |
getSupportedPreviewFpsRange
open fungetSupportedPreviewFpsRange(): MutableList<IntArray!>!
Deprecated: Deprecated in Java.
Gets the supported preview fps (frame-per-second) ranges. Each range contains a minimum fps and maximum fps. If minimum fps equals to maximum fps, the camera outputs frames in fixed frame rate. If not, the camera outputs frames in auto frame rate. The actual frame rate fluctuates between the minimum and the maximum. The values are multiplied by 1000 and represented in integers. For example, if frame rate is 26.623 frames per second, the value is 26623.
Return | |
---|---|
MutableList<IntArray!>! |
a list of supported preview fps ranges. This method returns a list with at least one element. Every element is an int array of two values - minimum fps and maximum fps. The list is sorted from small to large (first by maximum fps and then minimum fps). |
getSupportedPreviewFrameRates
open fungetSupportedPreviewFrameRates(): MutableList<Int!>!
Deprecated: replaced by getSupportedPreviewFpsRange()
Gets the supported preview frame rates.
Return | |
---|---|
MutableList<Int!>! |
a list of supported preview frame rates. null if preview frame rate setting is not supported. |
getSupportedPreviewSizes
open fungetSupportedPreviewSizes(): MutableList<Camera.Size!>!
Deprecated: Deprecated in Java.
Gets the supported preview sizes.
Return | |
---|---|
MutableList<Camera.Size!>! |
a list of Size object. This method will always return a list with at least one element. |
getSupportedSceneModes
open fungetSupportedSceneModes(): MutableList<String!>!
Deprecated: Deprecated in Java.
Gets the supported scene modes.
Return | |
---|---|
MutableList<String!>! |
a list of supported scene modes. null if scene mode setting is not supported. |
See Also
getSupportedVideoSizes
open fungetSupportedVideoSizes(): MutableList<Camera.Size!>!
Deprecated: Deprecated in Java.
Gets the supported video frame sizes that can be used by MediaRecorder.
If the returned list is not null, the returned list will contain at least one Size and one of the sizes in the returned list must be passed to MediaRecorder.setVideoSize() for camcorder application if camera is used as the video source. In this case, the size of the preview can be different from the resolution of the recorded video during video recording.
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 video resolution with any preview or picture size larger than 1920x1080 (either width or height) might not be supported, and setParameters(android.hardware.Camera.Parameters)
will throw a RuntimeException if it is not.
Return | |
---|---|
MutableList<Camera.Size!>! |
a list of Size object if camera has separate preview and video output; otherwise, null is returned. |
See Also
getSupportedWhiteBalance
open fungetSupportedWhiteBalance(): MutableList<String!>!
Deprecated: Deprecated in Java.
Gets the supported white balance.
Return | |
---|---|
MutableList<String!>! |
a list of supported white balance. null if white balance setting is not supported. |
See Also
getVerticalViewAngle
open fungetVerticalViewAngle(): Float
Deprecated: Deprecated in Java.
Gets the vertical angle of view in degrees.
Return | |
---|---|
Float |
vertical angle of view. Returns -1.0 when the device doesn't report view angle information. |
getVideoStabilization
open fungetVideoStabilization(): Boolean
Deprecated: Deprecated in Java.
Get the current state of video stabilization. See setVideoStabilization
for details of video stabilization.
Return | |
---|---|
Boolean |
true if video stabilization is enabled |
getWhiteBalance
open fungetWhiteBalance(): String!
Deprecated: Deprecated in Java.
Gets the current white balance setting.
Return | |
---|---|
String! |
current white balance. null if white balance setting is not supported. |
getZoom
open fungetZoom(): Int
Deprecated: Deprecated in Java.
Gets current zoom value. This also works when smooth zoom is in progress. Applications should check isZoomSupported
before using this method.
Return | |
---|---|
Int |
the current zoom value. The range is 0 to getMaxZoom . 0 means the camera is not zoomed. |
getZoomRatios
open fungetZoomRatios(): MutableList<Int!>!
Deprecated: Deprecated in Java.
Gets the zoom ratios of all zoom values. Applications should check isZoomSupported
before using this method.
Return | |
---|---|
MutableList<Int!>! |
the zoom ratios in 1/100 increments. Ex: a zoom of 3.2x is returned as 320. The number of elements is getMaxZoom + 1. The list is sorted from small to large. The first element is always 100. The last element is the zoom ratio of the maximum zoom value. |
isAutoExposureLockSupported
open funisAutoExposureLockSupported(): Boolean
Deprecated: Deprecated in Java.
Returns true if auto-exposure locking is supported. Applications should call this before trying to lock auto-exposure. See setAutoExposureLock
for details about the lock.
Return | |
---|---|
Boolean |
true if auto-exposure lock is supported. |
See Also
isAutoWhiteBalanceLockSupported
open funisAutoWhiteBalanceLockSupported(): Boolean
Deprecated: Deprecated in Java.
Returns true if auto-white balance locking is supported. Applications should call this before trying to lock auto-white balance. See setAutoWhiteBalanceLock
for details about the lock.
Return | |
---|---|
Boolean |
true if auto-white balance lock is supported. |
See Also
isSmoothZoomSupported
open funisSmoothZoomSupported(): Boolean
Deprecated: Deprecated in Java.
Returns true if smooth zoom is supported. Applications should call this before using other smooth zoom methods.
Return | |
---|---|
Boolean |
true if smooth zoom is supported. |
isVideoSnapshotSupported
open funisVideoSnapshotSupported(): Boolean
Deprecated: Deprecated in Java.
Returns true if video snapshot is supported. That is, applications can call takePicture(android.hardware.Camera.ShutterCallback,android.hardware.Camera.PictureCallback,android.hardware.Camera.PictureCallback,android.hardware.Camera.PictureCallback)
during recording. Applications do not need to call startPreview()
after taking a picture. The preview will be still active. Other than that, taking a picture during recording is identical to taking a picture normally. All settings and methods related to takePicture work identically. Ex: getPictureSize()
, getSupportedPictureSizes()
, setJpegQuality(int)
, setRotation(int)
, and etc. The picture will have an EXIF header. FLASH_MODE_AUTO
and FLASH_MODE_ON
also still work, but the video will record the flash.
Applications can set shutter callback as null to avoid the shutter sound. It is also recommended to set raw picture and post view callbacks to null to avoid the interrupt of preview display.
Field-of-view of the recorded video may be different from that of the captured pictures. The maximum size of a video snapshot may be smaller than that for regular still captures. If the current picture size is set higher than can be supported by video snapshot, the picture will be captured at the maximum supported size instead.
Return | |
---|---|
Boolean |
true if video snapshot is supported. |
isVideoStabilizationSupported
open funisVideoStabilizationSupported(): Boolean
Deprecated: Deprecated in Java.
Returns true if video stabilization is supported. See setVideoStabilization
for details of video stabilization.
Return | |
---|---|
Boolean |
true if video stabilization is supported |
isZoomSupported
open funisZoomSupported(): Boolean
Deprecated: Deprecated in Java.
Returns true if zoom is supported. Applications should call this before using other zoom methods.
Return | |
---|---|
Boolean |
true if zoom is supported. |
removeGpsData
open funremoveGpsData(): Unit
Deprecated: Deprecated in Java.
Removes GPS latitude, longitude, altitude, and timestamp from the parameters.
set
open funset(
key: String!,
value: Int
): Unit
Deprecated: Deprecated in Java.
Sets an integer parameter.
Parameters | |
---|---|
key |
String!: the key name for the parameter |
value |
Int: the int value of the parameter |
set
open funset(
key: String!,
value: String!
): Unit
Deprecated: Deprecated in Java.
Sets a String parameter.
Parameters | |
---|---|
key |
String!: the key name for the parameter |
value |
String!: the String value of the parameter |
setAntibanding
open funsetAntibanding(antibanding: String!): Unit
Deprecated: Deprecated in Java.
Sets the antibanding.
Parameters | |
---|---|
antibanding |
String!: new antibanding value. |
See Also
setAutoExposureLock
open funsetAutoExposureLock(toggle: Boolean): Unit
Deprecated: Deprecated in Java.
Sets the auto-exposure lock state. Applications should check isAutoExposureLockSupported
before using this method.
If set to true, the camera auto-exposure routine will immediately pause until the lock is set to false. Exposure compensation settings changes will still take effect while auto-exposure is locked.
If auto-exposure is already locked, setting this to true again has no effect (the driver will not recalculate exposure values).
Stopping preview with stopPreview()
, or triggering still image capture with takePicture(android.hardware.Camera.ShutterCallback,android.hardware.Camera.PictureCallback,android.hardware.Camera.PictureCallback)
, will not change the lock.
Exposure compensation, auto-exposure lock, and auto-white balance lock can be used to capture an exposure-bracketed burst of images, for example.
Auto-exposure state, including the lock state, will not be maintained after camera release()
is called. Locking auto-exposure after open()
but before the first call to startPreview()
will not allow the auto-exposure routine to run at all, and may result in severely over- or under-exposed images.
Parameters | |
---|---|
toggle |
Boolean: new state of the auto-exposure lock. True means that auto-exposure is locked, false means that the auto-exposure routine is free to run normally. |
See Also
setAutoWhiteBalanceLock
open funsetAutoWhiteBalanceLock(toggle: Boolean): Unit
Deprecated: Deprecated in Java.
Sets the auto-white balance lock state. Applications should check isAutoWhiteBalanceLockSupported
before using this method.
If set to true, the camera auto-white balance routine will immediately pause until the lock is set to false.
If auto-white balance is already locked, setting this to true again has no effect (the driver will not recalculate white balance values).
Stopping preview with stopPreview()
, or triggering still image capture with takePicture(android.hardware.Camera.ShutterCallback,android.hardware.Camera.PictureCallback,android.hardware.Camera.PictureCallback)
, will not change the the lock.
Changing the white balance mode with setWhiteBalance
will release the auto-white balance lock if it is set.
Exposure compensation, AE lock, and AWB lock can be used to capture an exposure-bracketed burst of images, for example. Auto-white balance state, including the lock state, will not be maintained after camera release()
is called. Locking auto-white balance after open()
but before the first call to startPreview()
will not allow the auto-white balance routine to run at all, and may result in severely incorrect color in captured images.
Parameters | |
---|---|
toggle |
Boolean: new state of the auto-white balance lock. True means that auto-white balance is locked, false means that the auto-white balance routine is free to run normally. |
setColorEffect
open funsetColorEffect(value: String!): Unit
Deprecated: Deprecated in Java.
Sets the current color effect setting.
Parameters | |
---|---|
value |
String!: new color effect. |
See Also
setExposureCompensation
open funsetExposureCompensation(value: Int): Unit
Deprecated: Deprecated in Java.
Sets the exposure compensation index.
Parameters | |
---|---|
value |
Int: exposure compensation index. The valid value range is from getMinExposureCompensation (inclusive) to getMaxExposureCompensation (inclusive). 0 means exposure is not adjusted. Application should call getMinExposureCompensation and getMaxExposureCompensation to know if exposure compensation is supported. |
setFlashMode
open funsetFlashMode(value: String!): Unit
Deprecated: Deprecated in Java.
Sets the flash mode.
Parameters | |
---|---|
value |
String!: flash mode. |
See Also
setFocusAreas
open funsetFocusAreas(focusAreas: MutableList<Camera.Area!>!): Unit
Deprecated: Deprecated in Java.
Sets focus areas. See getFocusAreas()
for documentation.
Parameters | |
---|---|
focusAreas |
MutableList<Camera.Area!>!: the focus areas |
See Also
setFocusMode
open funsetFocusMode(value: String!): Unit
Deprecated: Deprecated in Java.
Sets the focus mode.
Parameters | |
---|---|
value |
String!: focus mode. |
See Also
setGpsAltitude
open funsetGpsAltitude(altitude: Double): Unit
Deprecated: Deprecated in Java.
Sets GPS altitude. This will be stored in JPEG EXIF header.
Parameters | |
---|---|
altitude |
Double: GPS altitude in meters. |
setGpsLatitude
open funsetGpsLatitude(latitude: Double): Unit
Deprecated: Deprecated in Java.
Sets GPS latitude coordinate. This will be stored in JPEG EXIF header.
Parameters | |
---|---|
latitude |
Double: GPS latitude coordinate. |
setGpsLongitude
open funsetGpsLongitude(longitude: Double): Unit
Deprecated: Deprecated in Java.
Sets GPS longitude coordinate. This will be stored in JPEG EXIF header.
Parameters | |
---|---|
longitude |
Double: GPS longitude coordinate. |
setGpsProcessingMethod
open funsetGpsProcessingMethod(processing_method: String!): Unit
Deprecated: Deprecated in Java.
Sets GPS processing method. The method will be stored in a UTF-8 string up to 31 bytes long, in the JPEG EXIF header.
Parameters | |
---|---|
processing_method |
String!: The processing method to get this location. |
setGpsTimestamp
open funsetGpsTimestamp(timestamp: Long): Unit
Deprecated: Deprecated in Java.
Sets GPS timestamp. This will be stored in JPEG EXIF header.
Parameters | |
---|---|
timestamp |
Long: GPS timestamp (UTC in seconds since January 1, 1970). |
setJpegQuality
open funsetJpegQuality(quality: Int): Unit
Deprecated: Deprecated in Java.
Sets Jpeg quality of captured picture.
Parameters | |
---|---|
quality |
Int: the JPEG quality of captured picture. The range is 1 to 100, with 100 being the best. |
setJpegThumbnailQuality
open funsetJpegThumbnailQuality(quality: Int): Unit
Deprecated: Deprecated in Java.
Sets the quality of the EXIF thumbnail in Jpeg picture.
Parameters | |
---|---|
quality |
Int: the JPEG quality of the EXIF thumbnail. The range is 1 to 100, with 100 being the best. |
setJpegThumbnailSize
open funsetJpegThumbnailSize(
width: Int,
height: Int
): Unit
Deprecated: Deprecated in Java.
Sets the dimensions for EXIF thumbnail in Jpeg picture. If applications set both width and height to 0, EXIF will not contain thumbnail.
Applications need to consider the display orientation. See setPreviewSize(int,int)
for reference.
Parameters | |
---|---|
width |
Int: the width of the thumbnail, in pixels |
height |
Int: the height of the thumbnail, in pixels |
See Also
setMeteringAreas
open funsetMeteringAreas(meteringAreas: MutableList<Camera.Area!>!): Unit
Deprecated: Deprecated in Java.
Sets metering areas. See getMeteringAreas()
for documentation.
Parameters | |
---|---|
meteringAreas |
MutableList<Camera.Area!>!: the metering areas |
See Also
setPictureFormat
open funsetPictureFormat(pixel_format: Int): Unit
Deprecated: Deprecated in Java.
Sets the image format for pictures.
Parameters | |
---|---|
pixel_format |
Int: the desired picture format (ImageFormat.NV21, ImageFormat.RGB_565, or ImageFormat.JPEG) |
See Also
setPictureSize
open funsetPictureSize(
width: Int,
height: Int
): Unit
Deprecated: Deprecated in Java.
Sets the dimensions for pictures.
Applications need to consider the display orientation. See setPreviewSize(int,int)
for reference.
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 picture size with any preview or video size larger than 1920x1080 (either width or height) might not be supported, and setParameters(android.hardware.Camera.Parameters)
might throw a RuntimeException if it is not.
Parameters | |
---|---|
width |
Int: the width for pictures, in pixels |
height |
Int: the height for pictures, in pixels |
See Also
setPreviewFormat
open funsetPreviewFormat(pixel_format: Int): Unit
Deprecated: Deprecated in Java.
Sets the image format for preview pictures.
If this is never called, the default format will be android.graphics.ImageFormat#NV21
, which uses the NV21 encoding format.
Use Parameters.getSupportedPreviewFormats
to get a list of the available preview formats.
It is strongly recommended that either android.graphics.ImageFormat#NV21
or android.graphics.ImageFormat#YV12
is used, since they are supported by all camera devices.
For YV12, the image buffer that is received is not necessarily tightly packed, as there may be padding at the end of each row of pixel data, as described in android.graphics.ImageFormat#YV12
. For camera callback data, it can be assumed that the stride of the Y and UV data is the smallest possible that meets the alignment requirements. That is, if the preview size is width x height, then the following equations describe the buffer index for the beginning of row y for the Y plane and row c for the U and V planes:
<code>yStride = (int) ceil(width / 16.0) * 16; uvStride = (int) ceil( (yStride / 2) / 16.0) * 16; ySize = yStride * height; uvSize = uvStride * height / 2; yRowIndex = yStride * y; uRowIndex = ySize + uvSize + uvStride * c; vRowIndex = ySize + uvStride * c; size = ySize + uvSize * 2; </code>
Parameters | |
---|---|
pixel_format |
Int: the desired preview picture format, defined by one of the android.graphics.ImageFormat constants. (E.g., ImageFormat.NV21 (default), or ImageFormat.YV12) |
setPreviewFpsRange
open funsetPreviewFpsRange(
min: Int,
max: Int
): Unit
Deprecated: Deprecated in Java.
Sets the minimum and maximum preview fps. This controls the rate of preview frames received in PreviewCallback
. The minimum and maximum preview fps must be one of the elements from getSupportedPreviewFpsRange
.
Parameters | |
---|---|
min |
Int: the minimum preview fps (scaled by 1000). |
max |
Int: the maximum preview fps (scaled by 1000). |
Exceptions | |
---|---|
java.lang.RuntimeException |
if fps range is invalid. |
setPreviewFrameRate
open funsetPreviewFrameRate(fps: Int): Unit
Deprecated: replaced by setPreviewFpsRange(int,int)
Sets the rate at which preview frames are received. This is the target frame rate. The actual frame rate depends on the driver.
Parameters | |
---|---|
fps |
Int: the frame rate (frames per second) |
setPreviewSize
open funsetPreviewSize(
width: Int,
height: Int
): Unit
Deprecated: Deprecated in Java.
Sets the dimensions for preview pictures. If the preview has already started, applications should stop the preview first before changing preview size. The sides of width and height are based on camera orientation. That is, the preview size is the size before it is rotated by display orientation. So applications need to consider the display orientation while setting preview size. For example, suppose the camera supports both 480x320 and 320x480 preview sizes. The application wants a 3:2 preview ratio. If the display orientation is set to 0 or 180, preview size should be set to 480x320. If the display orientation is set to 90 or 270, preview size should be set to 320x480. The display orientation should also be considered while setting picture size and thumbnail size. 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 preview size with any picture or video size larger than 1920x1080 (either width or height) might not be supported, and setParameters(android.hardware.Camera.Parameters)
might throw a RuntimeException if it is not.
Parameters | |
---|---|
width |
Int: the width of the pictures, in pixels |
height |
Int: the height of the pictures, in pixels |
setRecordingHint
open funsetRecordingHint(hint: Boolean): Unit
Deprecated: Deprecated in Java.
Sets recording mode hint. This tells the camera that the intent of the application is to record videos android.media.MediaRecorder#start()
, not to take still pictures takePicture(android.hardware.Camera.ShutterCallback,android.hardware.Camera.PictureCallback,android.hardware.Camera.PictureCallback,android.hardware.Camera.PictureCallback)
. Using this hint can allow MediaRecorder.start() to start faster or with fewer glitches on output. This should be called before starting preview for the best result, but can be changed while the preview is active. The default value is false. The app can still call takePicture() when the hint is true or call MediaRecorder.start() when the hint is false. But the performance may be worse.
Parameters | |
---|---|
hint |
Boolean: true if the apps intend to record videos using android.media.MediaRecorder . |
setRotation
open funsetRotation(rotation: Int): Unit
Deprecated: Deprecated in Java.
Sets the clockwise rotation angle in degrees relative to the orientation of the camera. This affects the pictures returned from JPEG PictureCallback
. The camera driver may set orientation in the EXIF header without rotating the picture. Or the driver may rotate the picture and the EXIF thumbnail. If the Jpeg picture is rotated, the orientation in the EXIF header will be missing or 1 (row #0 is top and column #0 is left side).
If applications want to rotate the picture to match the orientation of what users see, apps should use android.view.OrientationEventListener
and android.hardware.Camera.CameraInfo
. The value from OrientationEventListener is relative to the natural orientation of the device. CameraInfo.orientation is the angle between camera orientation and natural device orientation. The sum of the two is the rotation angle for back-facing camera. The difference of the two is the rotation angle for front-facing camera. Note that the JPEG pictures of front-facing cameras are not mirrored as in preview display.
For example, suppose the natural orientation of the device is portrait. The device is rotated 270 degrees clockwise, so the device orientation is 270. Suppose a back-facing camera sensor is mounted in landscape and the top side of the camera sensor is aligned with the right edge of the display in natural orientation. So the camera orientation is 90. The rotation should be set to 0 (270 + 90).
The reference code is as follows.
public void onOrientationChanged(int orientation) { if (orientation == ORIENTATION_UNKNOWN) return; android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo(); android.hardware.Camera.getCameraInfo(cameraId, info); orientation = (orientation + 45) / 90 * 90; int rotation = 0; if (info.facing == CameraInfo.CAMERA_FACING_FRONT) { rotation = (info.orientation - orientation + 360) % 360; } else { // back-facing camera rotation = (info.orientation + orientation) % 360; } mParameters.setRotation(rotation); }
Parameters | |
---|---|
rotation |
Int: The rotation angle in degrees relative to the orientation of the camera. Rotation can only be 0, 90, 180 or 270. |
Exceptions | |
---|---|
java.lang.IllegalArgumentException |
if rotation value is invalid. |
setSceneMode
open funsetSceneMode(value: String!): Unit
Deprecated: Deprecated in Java.
Sets the scene mode. Changing scene mode may override other parameters (such as flash mode, focus mode, white balance). For example, suppose originally flash mode is on and supported flash modes are on/off. In night scene mode, both flash mode and supported flash mode may be changed to off. After setting scene mode, applications should call getParameters to know if some parameters are changed.
Parameters | |
---|---|
value |
String!: scene mode. |
See Also
setVideoStabilization
open funsetVideoStabilization(toggle: Boolean): Unit
Deprecated: Deprecated in Java.
Enables and disables video stabilization. Use isVideoStabilizationSupported
to determine if calling this method is valid.
Video stabilization reduces the shaking due to the motion of the camera in both the preview stream and in recorded videos, including data received from the preview callback. It does not reduce motion blur in images captured with android.hardware.Camera#takePicture.
Video stabilization can be enabled and disabled while preview or recording is active, but toggling it may cause a jump in the video stream that may be undesirable in a recorded video.
Parameters | |
---|---|
toggle |
Boolean: Set to true to enable video stabilization, and false to disable video stabilization. |
setWhiteBalance
open funsetWhiteBalance(value: String!): Unit
Deprecated: Deprecated in Java.
Sets the white balance. Changing the setting will release the auto-white balance lock. It is recommended not to change white balance and AWB lock at the same time.
Parameters | |
---|---|
value |
String!: new white balance. |
setZoom
open funsetZoom(value: Int): Unit
Deprecated: Deprecated in Java.
Sets current zoom value. If the camera is zoomed (value > 0), the actual picture size may be smaller than picture size setting. Applications can check the actual picture size after picture is returned from PictureCallback
. The preview size remains the same in zoom. Applications should check isZoomSupported
before using this method.
Parameters | |
---|---|
value |
Int: zoom value. The valid range is 0 to getMaxZoom . |
unflatten
open fununflatten(flattened: String!): Unit
Deprecated: Deprecated in Java.
Takes a flattened string of parameters and adds each one to this Parameters object.
The flatten()
method does the reverse.
Parameters | |
---|---|
flattened |
String!: a String of parameters (key-value paired) that are semi-colon delimited |