CameraDevice
abstract class CameraDevice : AutoCloseable
kotlin.Any | |
↳ | android.hardware.camera2.CameraDevice |
The CameraDevice class is a representation of a single camera connected to an Android device, allowing for fine-grain control of image capture and post-processing at high frame rates.
Your application must declare the Camera
permission in its manifest in order to access camera devices.
A given camera device may provide support at one of several levels defined in CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
. If a device supports LEGACY
level, the camera device is running in backward compatibility mode and has minimum camera2 API support. If a device supports the LIMITED
level, then Camera2 exposes a feature set that is roughly equivalent to the older Camera
API, although with a cleaner and more efficient interface. If a device supports the EXTERNAL
level, then the device is a removable camera that provides similar but slightly less features as the LIMITED
level. Devices that implement the FULL
or LEVEL3
level of support provide substantially improved capabilities over the older camera API. If your application requires a full-level device for proper operation, declare the "android.hardware.camera.level.full" feature in your manifest.
Summary
Nested classes | |
---|---|
abstract |
CameraDeviceSetup is a limited representation of |
abstract |
A callback objects for receiving updates about the state of a camera device. |
Constants | |
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static Int |
No vibration or sound muting for this camera device. |
static Int |
Mute vibration from ringtones, alarms or notifications while this camera device is in use. |
static Int |
Mute vibration and sound from ringtones, alarms or notifications while this camera device is in use. |
static Int |
A basic template for direct application control of capture parameters. |
static Int |
Create a request suitable for a camera preview window. |
static Int |
Create a request suitable for video recording. |
static Int |
Create a request suitable for still image capture. |
static Int |
Create a request suitable for still image capture while recording video. |
static Int |
Create a request suitable for zero shutter lag still capture. |
Public methods | |
---|---|
abstract Unit |
close() Close the connection to this camera device as quickly as possible. |
abstract CaptureRequest.Builder |
createCaptureRequest(templateType: Int) Create a |
open CaptureRequest.Builder |
createCaptureRequest(templateType: Int, physicalCameraIdSet: MutableSet<String!>!) Create a |
abstract Unit |
createCaptureSession(outputs: MutableList<Surface!>, callback: CameraCaptureSession.StateCallback, handler: Handler?) Create a new camera capture session by providing the target output set of Surfaces to the camera device. |
open Unit |
createCaptureSession(config: SessionConfiguration!) Create a new |
abstract Unit |
createCaptureSessionByOutputConfigurations(outputConfigurations: MutableList<OutputConfiguration!>!, callback: CameraCaptureSession.StateCallback!, handler: Handler?) Create a new camera capture session by providing the target output set of Surfaces and its corresponding surface configuration to the camera device. |
abstract Unit |
createConstrainedHighSpeedCaptureSession(outputs: MutableList<Surface!>, callback: CameraCaptureSession.StateCallback, handler: Handler?) Create a new constrained high speed capture session. |
open Unit |
createExtensionSession(extensionConfiguration: ExtensionSessionConfiguration) Initialize a specific device-specific extension augmented camera capture session. |
abstract CaptureRequest.Builder |
createReprocessCaptureRequest(inputResult: TotalCaptureResult) Create a |
abstract Unit |
createReprocessableCaptureSession(inputConfig: InputConfiguration, outputs: MutableList<Surface!>, callback: CameraCaptureSession.StateCallback, handler: Handler?) Create a new reprocessable camera capture session by providing the desired reprocessing input Surface configuration and the target output set of Surfaces to the camera device. |
abstract Unit |
createReprocessableCaptureSessionByConfigurations(inputConfig: InputConfiguration, outputs: MutableList<OutputConfiguration!>, callback: CameraCaptureSession.StateCallback, handler: Handler?) Create a new reprocessable camera capture session by providing the desired reprocessing input configuration and output |
open Int |
Get currently applied global camera audio restriction mode. |
abstract String |
getId() Get the ID of this camera device. |
open Boolean |
isSessionConfigurationSupported(sessionConfig: SessionConfiguration) Checks whether a particular |
open Unit |
setCameraAudioRestriction(mode: Int) Set audio restriction mode when this CameraDevice is being used. |
Constants
AUDIO_RESTRICTION_NONE
static val AUDIO_RESTRICTION_NONE: Int
No vibration or sound muting for this camera device. This is the default mode for all camera devices.
Value: 0
See Also
AUDIO_RESTRICTION_VIBRATION
static val AUDIO_RESTRICTION_VIBRATION: Int
Mute vibration from ringtones, alarms or notifications while this camera device is in use.
Value: 1
See Also
AUDIO_RESTRICTION_VIBRATION_SOUND
static val AUDIO_RESTRICTION_VIBRATION_SOUND: Int
Mute vibration and sound from ringtones, alarms or notifications while this camera device is in use.
Value: 3
See Also
TEMPLATE_MANUAL
static val TEMPLATE_MANUAL: Int
A basic template for direct application control of capture parameters. All automatic control is disabled (auto-exposure, auto-white balance, auto-focus), and post-processing parameters are set to preview quality. The manual capture parameters (exposure, sensitivity, and so on) are set to reasonable defaults, but should be overridden by the application depending on the intended use case. This template is guaranteed to be supported on camera devices that support the MANUAL_SENSOR
capability.
Value: 6
See Also
TEMPLATE_PREVIEW
static val TEMPLATE_PREVIEW: Int
Create a request suitable for a camera preview window. Specifically, this means that high frame rate is given priority over the highest-quality post-processing. These requests would normally be used with the CameraCaptureSession#setRepeatingRequest
method. This template is guaranteed to be supported on all camera devices.
Value: 1
See Also
TEMPLATE_RECORD
static val TEMPLATE_RECORD: Int
Create a request suitable for video recording. Specifically, this means that a stable frame rate is used, and post-processing is set for recording quality. These requests would commonly be used with the CameraCaptureSession#setRepeatingRequest
method. This template is guaranteed to be supported on all camera devices except DEPTH_OUTPUT
devices that are not BACKWARD_COMPATIBLE
.
Value: 3
See Also
TEMPLATE_STILL_CAPTURE
static val TEMPLATE_STILL_CAPTURE: Int
Create a request suitable for still image capture. Specifically, this means prioritizing image quality over frame rate. These requests would commonly be used with the CameraCaptureSession#capture
method. This template is guaranteed to be supported on all camera devices except DEPTH_OUTPUT
devices that are not BACKWARD_COMPATIBLE
.
Value: 2
See Also
TEMPLATE_VIDEO_SNAPSHOT
static val TEMPLATE_VIDEO_SNAPSHOT: Int
Create a request suitable for still image capture while recording video. Specifically, this means maximizing image quality without disrupting the ongoing recording. These requests would commonly be used with the CameraCaptureSession#capture
method while a request based on TEMPLATE_RECORD
is is in use with CameraCaptureSession#setRepeatingRequest
. This template is guaranteed to be supported on all camera devices except legacy devices (CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
==
LEGACY
) and DEPTH_OUTPUT
devices that are not BACKWARD_COMPATIBLE
.
Value: 4
See Also
TEMPLATE_ZERO_SHUTTER_LAG
static val TEMPLATE_ZERO_SHUTTER_LAG: Int
Create a request suitable for zero shutter lag still capture. This means means maximizing image quality without compromising preview frame rate. AE/AWB/AF should be on auto mode. This is intended for application-operated ZSL. For device-operated ZSL, use CaptureRequest#CONTROL_ENABLE_ZSL
if available. This template is guaranteed to be supported on camera devices that support the PRIVATE_REPROCESSING
capability or the YUV_REPROCESSING
capability.
Value: 5
Public methods
close
abstract fun close(): Unit
Close the connection to this camera device as quickly as possible.
Immediately after this call, all calls to the camera device or active session interface will throw a IllegalStateException
, except for calls to close(). Once the device has fully shut down, the StateCallback#onClosed
callback will be called, and the camera is free to be re-opened.
Immediately after this call, besides the final StateCallback#onClosed
calls, no further callbacks from the device or the active session will occur, and any remaining submitted capture requests will be discarded, as if CameraCaptureSession#abortCaptures
had been called, except that no success or failure callbacks will be invoked.
Exceptions | |
---|---|
java.lang.Exception |
if this resource cannot be closed |
createCaptureRequest
abstract fun createCaptureRequest(templateType: Int): CaptureRequest.Builder
Create a CaptureRequest.Builder
for new capture requests, initialized with template for a target use case. The settings are chosen to be the best options for the specific camera device, so it is not recommended to reuse the same request for a different camera device; create a builder specific for that device and template and override the settings as desired, instead.
Parameters | |
---|---|
templateType |
Int: An enumeration selecting the use case for this request. Not all template types are supported on every device. See the documentation for each template type for details. Value is android.hardware.camera2.CameraDevice#TEMPLATE_PREVIEW , android.hardware.camera2.CameraDevice#TEMPLATE_STILL_CAPTURE , android.hardware.camera2.CameraDevice#TEMPLATE_RECORD , android.hardware.camera2.CameraDevice#TEMPLATE_VIDEO_SNAPSHOT , android.hardware.camera2.CameraDevice#TEMPLATE_ZERO_SHUTTER_LAG , or android.hardware.camera2.CameraDevice#TEMPLATE_MANUAL |
Return | |
---|---|
CaptureRequest.Builder |
a builder for a capture request, initialized with default settings for that template, and no output streams This value cannot be null . |
Exceptions | |
---|---|
java.lang.IllegalArgumentException |
if the templateType is not supported by this device. |
android.hardware.camera2.CameraAccessException |
if the camera device is no longer connected or has encountered a fatal error |
java.lang.IllegalStateException |
if the camera device has been closed |
createCaptureRequest
open fun createCaptureRequest(
templateType: Int,
physicalCameraIdSet: MutableSet<String!>!
): CaptureRequest.Builder
Create a CaptureRequest.Builder
for new capture requests, initialized with template for a target use case. This methods allows clients to pass physical camera ids which can be used to customize the request for a specific physical camera. The settings are chosen to be the best options for the specific logical camera device. If additional physical camera ids are passed, then they will also use the same settings template. Clients can further modify individual camera settings by calling CaptureRequest.Builder#setPhysicalCameraKey
.
Individual physical camera settings will only be honored for camera session that was initialized with corresponding physical camera id output configuration OutputConfiguration#setPhysicalCameraId
and the same output targets are also attached in the request by CaptureRequest.Builder#addTarget
.
The output is undefined for any logical camera streams in case valid physical camera settings are attached.
Parameters | |
---|---|
templateType |
Int: An enumeration selecting the use case for this request. Not all template types are supported on every device. See the documentation for each template type for details. Value is android.hardware.camera2.CameraDevice#TEMPLATE_PREVIEW , android.hardware.camera2.CameraDevice#TEMPLATE_STILL_CAPTURE , android.hardware.camera2.CameraDevice#TEMPLATE_RECORD , android.hardware.camera2.CameraDevice#TEMPLATE_VIDEO_SNAPSHOT , android.hardware.camera2.CameraDevice#TEMPLATE_ZERO_SHUTTER_LAG , or android.hardware.camera2.CameraDevice#TEMPLATE_MANUAL |
physicalCameraIdSet |
MutableSet<String!>!: A set of physical camera ids that can be used to customize the request for a specific physical camera. |
Return | |
---|---|
CaptureRequest.Builder |
a builder for a capture request, initialized with default settings for that template, and no output streams This value cannot be null . |
Exceptions | |
---|---|
java.lang.IllegalArgumentException |
if the templateType is not supported by this device, or one of the physical id arguments matches with logical camera id. |
android.hardware.camera2.CameraAccessException |
if the camera device is no longer connected or has encountered a fatal error |
java.lang.IllegalStateException |
if the camera device has been closed |
createCaptureSession
abstract funcreateCaptureSession(
outputs: MutableList<Surface!>,
callback: CameraCaptureSession.StateCallback,
handler: Handler?
): Unit
Deprecated: Please use createCaptureSession(android.hardware.camera2.params.SessionConfiguration)
for the full set of configuration options available.
Create a new camera capture session by providing the target output set of Surfaces to the camera device.
Parameters | |
---|---|
outputs |
MutableList<Surface!>: The new set of Surfaces that should be made available as targets for captured image data. This value cannot be null . |
callback |
CameraCaptureSession.StateCallback: The callback to notify about the status of the new capture session. This value cannot be null . |
handler |
Handler?: The handler on which the callback should be invoked, or null to use the current thread's looper . |
Exceptions | |
---|---|
java.lang.IllegalArgumentException |
if the set of output Surfaces do not meet the requirements, the callback is null, or the handler is null but the current thread has no looper. |
android.hardware.camera2.CameraAccessException |
if the camera device is no longer connected or has encountered a fatal error |
java.lang.IllegalStateException |
if the camera device has been closed |
createCaptureSession
open fun createCaptureSession(config: SessionConfiguration!): Unit
Create a new CameraCaptureSession
using a SessionConfiguration
helper object that aggregates all supported parameters.
The active capture session determines the set of potential output Surfaces for the camera device for each capture request. A given request may use all or only some of the outputs. Once the CameraCaptureSession is created, requests can be submitted with capture
, captureBurst
, setRepeatingRequest
, or setRepeatingBurst
.
Surfaces suitable for inclusion as a camera output can be created for various use cases and targets:
- For drawing to a
SurfaceView
: Once the SurfaceView's Surface iscreated
, set the size of the Surface withandroid.view.SurfaceHolder#setFixedSize
to be one of the sizes returned bygetOutputSizes(SurfaceHolder.class)
and then obtain the Surface by callingandroid.view.SurfaceHolder#getSurface
. If the size is not set by the application, it will be rounded to the nearest supported size less than 1080p, by the camera device. - For accessing through an OpenGL texture via a
SurfaceTexture
: Set the size of the SurfaceTexture withandroid.graphics.SurfaceTexture#setDefaultBufferSize
to be one of the sizes returned bygetOutputSizes(SurfaceTexture.class)
before creating a Surface from the SurfaceTexture withSurface#Surface(SurfaceTexture)
. If the size is not set by the application, it will be set to be the smallest supported size less than 1080p, by the camera device. - For recording with
android.media.MediaCodec
: Callandroid.media.MediaCodec#createInputSurface
after configuring the media codec to use one of the sizes returned bygetOutputSizes(MediaCodec.class)
- For recording with
android.media.MediaRecorder
: Callandroid.media.MediaRecorder#getSurface
after configuring the media recorder to use one of the sizes returned bygetOutputSizes(MediaRecorder.class)
, or configuring it to use one of the supportedCamcorderProfiles
. - For access to RAW, uncompressed YUV, or compressed JPEG data in the application: Create an
android.media.ImageReader
object with one of the supported output formats given byStreamConfigurationMap#getOutputFormats()
, setting its size to one of the corresponding supported sizes by passing the chosen output format intoStreamConfigurationMap#getOutputSizes(int)
. Then obtain aandroid.view.Surface
from it withandroid.media.ImageReader#getSurface()
. If the ImageReader size is not set to a supported size, it will be rounded to a supported size less than 1080p by the camera device.
The camera device will query each Surface's size and formats upon this call, so they must be set to a valid setting at this time.
It can take several hundred milliseconds for the session's configuration to complete, since camera hardware may need to be powered on or reconfigured. Once the configuration is complete and the session is ready to actually capture data, the provided CameraCaptureSession.StateCallback
's CameraCaptureSession.StateCallback#onConfigured
callback will be called.
If a prior CameraCaptureSession already exists when this method is called, the previous session will no longer be able to accept new capture requests and will be closed. Any in-progress capture requests made on the prior session will be completed before it's closed. CameraCaptureSession.StateCallback#onConfigured
for the new session may be invoked before CameraCaptureSession.StateCallback#onClosed
is invoked for the prior session. Once the new session is configured
, it is able to start capturing its own requests. To minimize the transition time, the CameraCaptureSession#abortCaptures
call can be used to discard the remaining requests for the prior capture session before a new one is created. Note that once the new session is created, the old one can no longer have its captures aborted.
Using larger resolution outputs, or more outputs, can result in slower output rate from the device.
Configuring a session with an empty or null list will close the current session, if any. This can be used to release the current session's target surfaces for another use.
This function throws an IllegalArgumentException
if called with a SessionConfiguration lacking state callbacks or valid output surfaces. The only exceptions are deferred SurfaceView or SurfaceTexture outputs. See android.hardware.camera2.params.OutputConfiguration#OutputConfiguration(android.util.Size,java.lang.Class)
for details.
Regular capture
While any of the sizes from android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes can be used when a single output stream is configured, a given camera device may not be able to support all combination of sizes, formats, and targets when multiple outputs are configured at once. The tables below list the maximum guaranteed resolutions for combinations of streams and targets, given the capabilities of the camera device. These are valid for when the input configuration
is not set and therefore no reprocessing is active.
If an application tries to create a session using a set of targets that exceed the limits described in the below tables, one of three possibilities may occur. First, the session may be successfully created and work normally. Second, the session may be successfully created, but the camera device won't meet the frame rate guarantees as described in android.hardware.camera2.params.StreamConfigurationMap#getOutputMinFrameDuration. Or third, if the output set cannot be used at all, session creation will fail entirely, with CameraCaptureSession.StateCallback#onConfigureFailed
being invoked.
For the type column, PRIV
refers to any target whose available sizes are found using StreamConfigurationMap#getOutputSizes(Class)
with no direct application-visible format, YUV
refers to a target Surface using the android.graphics.ImageFormat#YUV_420_888
format, JPEG
refers to the android.graphics.ImageFormat#JPEG
format, and RAW
refers to the android.graphics.ImageFormat#RAW_SENSOR
format.
For the maximum size column, PREVIEW
refers to the best size match to the device's screen resolution, or to 1080p (1920x1080
), whichever is smaller. RECORD
refers to the camera device's maximum supported recording resolution, as determined by android.media.CamcorderProfile
. And MAXIMUM
refers to the camera device's maximum output resolution for that format or target from android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes.
To use these tables, determine the number and the formats/targets of outputs needed, and find the row(s) of the table with those targets. The sizes indicate the maximum set of sizes that can be used; it is guaranteed that for those targets, the listed sizes and anything smaller from the list given by android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes can be successfully used to create a session. For example, if a row indicates that a 8 megapixel (MP) YUV_420_888 output can be used together with a 2 MP PRIV
output, then a session can be created with targets [8 MP YUV, 2 MP PRIV]
or targets [2 MP YUV, 2 MP PRIV]
; but a session with targets [8 MP YUV, 4 MP PRIV]
, targets [4 MP YUV, 4 MP PRIV]
, or targets [8 MP PRIV, 2 MP YUV]
would not be guaranteed to work, unless some other row of the table lists such a combination.
LEGACY-level guaranteed configurations
Legacy devices (CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
==
LEGACY
) support at least the following stream combinations:
Target 1 | Target 2 | Target 3 | Sample use case(s) | |||
---|---|---|---|---|---|---|
Type | Max size | Type | Max size | Type | Max size | |
PRIV |
MAXIMUM |
Simple preview, GPU video processing, or no-preview video recording. | ||||
JPEG |
MAXIMUM |
No-viewfinder still image capture. | ||||
YUV |
MAXIMUM |
In-application video/image processing. | ||||
PRIV |
PREVIEW |
JPEG |
MAXIMUM |
Standard still imaging. | ||
YUV |
PREVIEW |
JPEG |
MAXIMUM |
In-app processing plus still capture. | ||
PRIV |
PREVIEW |
PRIV |
PREVIEW |
Standard recording. | ||
PRIV |
PREVIEW |
YUV |
PREVIEW |
Preview plus in-app processing. | ||
PRIV |
PREVIEW |
YUV |
PREVIEW |
JPEG |
MAXIMUM |
Still capture plus in-app processing. |
LIMITED-level additional guaranteed configurations
Limited-level (CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
==
LIMITED
) devices support at least the following stream combinations in addition to those for LEGACY
devices:
Target 1 | Target 2 | Target 3 | Sample use case(s) | |||
---|---|---|---|---|---|---|
Type | Max size | Type | Max size | Type | Max size | |
PRIV |
PREVIEW |
PRIV |
RECORD |
High-resolution video recording with preview. | ||
PRIV |
PREVIEW |
YUV |
RECORD |
High-resolution in-app video processing with preview. | ||
YUV |
PREVIEW |
YUV |
RECORD |
Two-input in-app video processing. | ||
PRIV |
PREVIEW |
PRIV |
RECORD |
JPEG |
RECORD |
High-resolution recording with video snapshot. |
PRIV |
PREVIEW |
YUV |
RECORD |
JPEG |
RECORD |
High-resolution in-app processing with video snapshot. |
YUV |
PREVIEW |
YUV |
PREVIEW |
JPEG |
MAXIMUM |
Two-input in-app processing with still capture. |
FULL-level additional guaranteed configurations
FULL-level (CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
==
FULL
) devices support at least the following stream combinations in addition to those for LIMITED
devices:
Target 1 | Target 2 | Target 3 | Sample use case(s) | |||
---|---|---|---|---|---|---|
Type | Max size | Type | Max size | Type | Max size | |
PRIV |
PREVIEW |
PRIV |
MAXIMUM |
Maximum-resolution GPU processing with preview. | ||
PRIV |
PREVIEW |
YUV |
MAXIMUM |
Maximum-resolution in-app processing with preview. | ||
YUV |
PREVIEW |
YUV |
MAXIMUM |
Maximum-resolution two-input in-app processing. | ||
PRIV |
PREVIEW |
PRIV |
PREVIEW |
JPEG |
MAXIMUM |
Video recording with maximum-size video snapshot |
YUV |
640x480 |
PRIV |
PREVIEW |
YUV |
MAXIMUM |
Standard video recording plus maximum-resolution in-app processing. |
YUV |
640x480 |
YUV |
PREVIEW |
YUV |
MAXIMUM |
Preview plus two-input maximum-resolution in-app processing. |
RAW-capability additional guaranteed configurations
RAW-capability (CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
includes RAW
) devices additionally support at least the following stream combinations on both FULL
and LIMITED
devices:
Target 1 | Target 2 | Target 3 | Sample use case(s) | |||
---|---|---|---|---|---|---|
Type | Max size | Type | Max size | Type | Max size | |
RAW |
MAXIMUM |
No-preview DNG capture. | ||||
PRIV |
PREVIEW |
RAW |
MAXIMUM |
Standard DNG capture. | ||
YUV |
PREVIEW |
RAW |
MAXIMUM |
In-app processing plus DNG capture. | ||
PRIV |
PREVIEW |
PRIV |
PREVIEW |
RAW |
MAXIMUM |
Video recording with DNG capture. |
PRIV |
PREVIEW |
YUV |
PREVIEW |
RAW |
MAXIMUM |
Preview with in-app processing and DNG capture. |
YUV |
PREVIEW |
YUV |
PREVIEW |
RAW |
MAXIMUM |
Two-input in-app processing plus DNG capture. |
PRIV |
PREVIEW |
JPEG |
MAXIMUM |
RAW |
MAXIMUM |
Still capture with simultaneous JPEG and DNG. |
YUV |
PREVIEW |
JPEG |
MAXIMUM |
RAW |
MAXIMUM |
In-app processing with simultaneous JPEG and DNG. |
BURST-capability additional guaranteed configurations
BURST-capability (CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
includes BURST_CAPTURE
) devices support at least the below stream combinations in addition to those for LIMITED
devices. Note that all FULL-level devices support the BURST capability, and the below list is a strict subset of the list for FULL-level devices, so this table is only relevant for LIMITED-level devices that support the BURST_CAPTURE capability.
Target 1 | Target 2 | Sample use case(s) | ||
---|---|---|---|---|
Type | Max size | Type | Max size | |
PRIV |
PREVIEW |
PRIV |
MAXIMUM |
Maximum-resolution GPU processing with preview. |
PRIV |
PREVIEW |
YUV |
MAXIMUM |
Maximum-resolution in-app processing with preview. |
YUV |
PREVIEW |
YUV |
MAXIMUM |
Maximum-resolution two-input in-app processing. |
LEVEL-3 additional guaranteed configurations
LEVEL-3 (CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
==
LEVEL_3
) support at least the following stream combinations in addition to the combinations for FULL
and for RAW capability (CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
includes RAW
):
Target 1 | Target 2 | Target 3 | Target 4 | Sample use case(s) | ||||
---|---|---|---|---|---|---|---|---|
Type | Max size | Type | Max size | Type | Max size | Type | Max size | |
PRIV |
PREVIEW |
PRIV |
640x480 |
YUV |
MAXIMUM |
RAW |
MAXIMUM |
In-app viewfinder analysis with dynamic selection of output format. |
PRIV |
PREVIEW |
PRIV |
640x480 |
JPEG |
MAXIMUM |
RAW |
MAXIMUM |
In-app viewfinder analysis with dynamic selection of output format. |
Concurrent stream guaranteed configurations
BACKWARD_COMPATIBLE devices capable of streaming concurrently with other devices as described by android.hardware.camera2.CameraManager#getConcurrentCameraIds
have the following guaranteed streams (when streaming concurrently with other devices)
Note: The sizes mentioned for these concurrent streams are the maximum sizes guaranteed to be supported. Sizes smaller than these, obtained by android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes for a particular format, are supported as well.
Target 1 | Target 2 | Sample use case(s) | ||
---|---|---|---|---|
Type | Max size | Type | Max size | |
YUV |
s1440p |
In-app video / image processing. | ||
PRIV |
s1440p |
In-app viewfinder analysis. | ||
JPEG |
s1440p |
No viewfinder still image capture. | ||
YUV / PRIV |
s720p |
JPEG |
s1440p |
Standard still imaging. |
YUV / PRIV |
s720p |
YUV / PRIV |
s1440p |
In-app video / processing with preview. |
Devices which are not backwards-compatible, support a mandatory single stream of size sVGA with image format DEPTH16
during concurrent operation.
For guaranteed concurrent stream configurations:
sVGA refers to the camera device's maximum resolution for that format from android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes or VGA resolution (640X480) whichever is lower.
s720p refers to the camera device's maximum resolution for that format from android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes or 720p(1280X720) whichever is lower.
s1440p refers to the camera device's maximum resolution for that format from android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes or 1440p(1920X1440) whichever is lower.
MONOCHROME-capability (CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
includes MONOCHROME
) devices supporting Y8
support substituting YUV
streams with Y8
in all guaranteed stream combinations for the device's hardware level and capabilities.
Clients can access the above mandatory stream combination tables via android.hardware.camera2.params.MandatoryStreamCombination
.
Devices capable of outputting HEIC formats (StreamConfigurationMap#getOutputFormats
contains android.graphics.ImageFormat#HEIC
) will support substituting JPEG
streams with HEIC
in all guaranteed stream combinations for the device's hardware level and capabilities. Calling createCaptureSession with both JPEG and HEIC outputs is not supported.
LEGACY-level additional guaranteed combinations with multi-resolution outputs
Devices capable of multi-resolution output for a particular format ( android.hardware.camera2.params.MultiResolutionStreamConfigurationMap#getOutputInfo
returns a non-empty list) support using MultiResolutionImageReader
for MAXIMUM resolution streams of that format for all mandatory stream combinations. For example, if a LIMITED camera device supports multi-resolution output streams for both JPEG
and PRIVATE
, in addition to the stream configurations in the LIMITED and Legacy table above, the camera device supports the following guaranteed stream combinations (MULTI_RES
in the Max size column refers to a MultiResolutionImageReader
created based on the variable max resolutions supported):
Target 1 | Target 2 | Target 3 | Sample use case(s) | |||
---|---|---|---|---|---|---|
Type | Max size | Type | Max size | Type | Max size | |
PRIV |
MULTI_RES |
Simple preview, GPU video processing, or no-preview video recording. | ||||
JPEG |
MULTI_RES |
No-viewfinder still image capture. | ||||
PRIV |
PREVIEW |
JPEG |
MULTI_RES |
Standard still imaging. | ||
PRIV |
PREVIEW |
YUV |
PREVIEW |
JPEG |
MULTI_RES |
Still capture plus in-app processing. |
LIMITED-level additional guaranteed configurations with multi-resolution outputs
Target 1 | Target 2 | Target 3 | Sample use case(s) | |||
---|---|---|---|---|---|---|
Type | Max size | Type | Max size | Type | Max size | |
YUV |
PREVIEW |
YUV |
PREVIEW |
JPEG |
MULTI_RES |
Two-input in-app processing with still capture. |
The same logic applies to other hardware levels and capabilities.
Additional guaranteed combinations for ULTRA_HIGH_RESOLUTION sensors
Devices with the ULTRA_HIGH_RESOLUTION_SENSOR capability have some additional guarantees which clients can take advantage of:
Target 1 | Target 2 | Target 3 | Sample use case(s) | ||||||
---|---|---|---|---|---|---|---|---|---|
Type | SC Map | Max size | Type | SC Map | Max size | Type | SC Map | Max size | |
YUV / JPEG / RAW |
MAX_RES |
MAX |
PRIV / YUV |
DEFAULT |
PREVIEW |
Ultra high res still image capture with preview | |||
YUV / JPEG / RAW |
MAX_RES |
MAX |
PRIV |
DEFAULT |
PREVIEW |
PRIV / YUV |
DEFAULT |
RECORD |
Ultra high res still capture with preview + app based RECORD size analysis |
YUV / JPEG / RAW |
MAX_RES |
MAX |
PRIV |
DEFAULT |
PREVIEW |
JPEG / YUV / RAW |
DEFAULT |
MAX |
Ultra high res still image capture with preview + default sensor pixel mode analysis stream |
Here, SC Map, refers to the StreamConfigurationMap
, the target stream sizes must be chosen from. DEFAULT
refers to the default sensor pixel mode StreamConfigurationMap
and MAX_RES
refers to the maximum resolution StreamConfigurationMap
. For MAX_RES
streams, MAX
in the Max size
column refers to the maximum size from android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes and StreamConfigurationMap#getHighResolutionOutputSizes
. Note: The same capture request must not mix targets from StreamConfigurationMap
s corresponding to different sensor pixel modes.
10-bit output additional guaranteed configurations
10-bit output capable CameraMetadata#REQUEST_AVAILABLE_CAPABILITIES_DYNAMIC_RANGE_TEN_BIT
devices support at least the following stream combinations:
Target 1 | Target 2 | Target 3 | Sample use case(s) | |||
---|---|---|---|---|---|---|
Type | Max size | Type | Max size | Type | Max size | |
PRIV |
MAXIMUM |
Simple preview, GPU video processing, or no-preview video recording. | ||||
YUV |
MAXIMUM |
In-application video/image processing. | ||||
PRIV |
PREVIEW |
JPEG |
MAXIMUM |
Standard still imaging. | ||
PRIV |
PREVIEW |
YUV |
MAXIMUM |
Maximum-resolution in-app processing with preview. | ||
YUV |
PREVIEW |
YUV |
MAXIMUM |
Maximum-resolution two-input in-app processing. | ||
PRIV |
PREVIEW |
PRIV |
RECORD |
High-resolution video recording with preview. | ||
PRIV |
PREVIEW |
PRIV |
RECORD |
YUV |
RECORD |
High-resolution recording with in-app snapshot. |
PRIV |
PREVIEW |
PRIV |
RECORD |
JPEG |
RECORD |
High-resolution recording with video snapshot. |
Here PRIV can be either 8 or 10-bit android.graphics.ImageFormat#PRIVATE
pixel format. YUV can be either android.graphics.ImageFormat#YUV_420_888
or android.graphics.ImageFormat#YCBCR_P010
. For the maximum size column, PREVIEW refers to the best size match to the device's screen resolution, or to 1080p (1920x1080), whichever is smaller. RECORD refers to the camera device's maximum supported recording resolution, as determined by android.media.CamcorderProfile
. MAXIMUM refers to the camera device's maximum output resolution for that format or target from StreamConfigurationMap#getOutputSizes(int)
. Do note that invalid combinations such as having a camera surface configured to use pixel format android.graphics.ImageFormat#YUV_420_888
with a 10-bit profile will cause a capture session initialization failure.
android.graphics.ImageFormat#JPEG_R
may also be supported if advertised by android.hardware.camera2.params.StreamConfigurationMap
. When initializing a capture session that includes a Jpeg/R camera output clients must consider the following items w.r.t. the 10-bit mandatory stream combination table:
- To generate the compressed Jpeg/R image a single
android.graphics.ImageFormat#YCBCR_P010
output will be used internally by the camera device. - On camera devices that are able to support concurrent 10 and 8-bit capture requests see
android.hardware.camera2.params.DynamicRangeProfiles#getProfileCaptureRequestConstraints
an extraandroid.graphics.ImageFormat#JPEG
will also be configured internally to help speed up the encoding process.
StreamConfigurationMap#getOutputSizes(int)
for a complete list supported sizes. Camera clients that register a Jpeg/R output within a stream combination that doesn't fit in the mandatory stream table above can call isSessionConfigurationSupported
to ensure that this particular configuration is supported.
STREAM_USE_CASE capability additional guaranteed configurations
Devices with the STREAM_USE_CASE capability (android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
includes android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES_STREAM_USE_CASE
) support below additional stream combinations:
Target 1 | Target 2 | Target 3 | Sample use case(s) | ||||||
---|---|---|---|---|---|---|---|---|---|
Type | Max size | Usecase | Type | Max size | Usecase | Type | Max size | Usecase | |
YUV / PRIV |
PREVIEW |
PREVIEW |
Simple preview or in-app image processing | ||||||
YUV / PRIV |
RECORD |
VIDEO_RECORD |
Simple video recording or in-app video processing | ||||||
YUV / JPEG |
MAXIMUM |
STILL_CAPTURE |
Simple JPEG or YUV still image capture | ||||||
YUV / PRIV |
s1440p |
PREVIEW_VIDEO_STILL |
Multi-purpose stream for preview, video and still image capture | ||||||
YUV / PRIV |
s1440p |
VIDEO_CALL |
Simple video call | ||||||
PRIV |
PREVIEW |
PREVIEW |
YUV / JPEG |
MAXIMUM |
STILL_CAPTURE |
Preview with JPEG or YUV still image capture | |||
PRIV |
PREVIEW |
PREVIEW |
YUV / PRIV |
RECORD |
VIDEO_RECORD |
Preview with video recording or in-app video processing | |||
PRIV |
PREVIEW |
PREVIEW |
YUV |
PREVIEW |
PREVIEW |
Preview with in-application image processing | |||
PRIV |
PREVIEW |
PREVIEW |
YUV / PRIV |
s1440p |
VIDEO_CALL |
Preview with video call | |||
YUV / PRIV |
s1440p |
PREVIEW_VIDEO_STILL |
YUV / JPEG |
MAXIMUM |
STILL_CAPTURE |
MultI-purpose stream with JPEG or YUV still capture | |||
YUV |
PREVIEW |
STILL_CAPTURE |
JPEG |
MAXIMUM |
STILL_CAPTURE |
YUV and JPEG concurrent still image capture (for testing) | |||
PRIV |
PREVIEW |
PREVIEW |
YUV / PRIV |
RECORD |
VIDEO_RECORD |
JPEG |
RECORD |
STILL_CAPTURE |
Preview, video record and JPEG video snapshot |
PRIV |
PREVIEW |
PREVIEW |
YUV |
PREVIEW |
PREVIEW |
JPEG |
MAXIMUM |
STILL_CAPTURE |
Preview, in-application image processing, and JPEG still image capture |
STREAM_USE_CASE_CROPPED_RAW capability additional guaranteed configurations
Devices that include the CameraMetadata#SCALER_AVAILABLE_STREAM_USE_CASES_CROPPED_RAW
stream use-case in CameraCharacteristics#SCALER_AVAILABLE_STREAM_USE_CASES
, support the additional stream combinations below:
Target 1 | Target 2 | Target 3 | Sample use case(s) | ||||||
---|---|---|---|---|---|---|---|---|---|
Type | Max size | Usecase | Type | Max size | Usecase | Type | Max size | Usecase | |
RAW |
MAXIMUM |
CROPPED_RAW |
Cropped RAW still capture without preview | ||||||
PRIV / YUV |
PREVIEW |
PREVIEW |
RAW |
MAXIMUM |
CROPPED_RAW |
Preview with cropped RAW still capture | |||
PRIV / YUV |
PREVIEW |
PREVIEW |
YUV / JPEG |
MAXIMUM |
STILL_CAPTURE |
RAW |
MAXIMUM |
CROPPED_RAW |
Preview with YUV / JPEG and cropped RAW still capture |
PRIV / YUV |
PREVIEW |
PREVIEW |
PRIV / YUV |
PREVIEW |
VIDEO_RECORD / PREVIEW |
RAW |
MAXIMUM |
CROPPED_RAW |
Video recording with preview and cropped RAW still capture |
Preview stabilization guaranteed stream configurations
For devices where CameraCharacteristics#CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES
includes CameraMetadata#CONTROL_VIDEO_STABILIZATION_MODE_PREVIEW_STABILIZATION
, the following stream combinations are guaranteed, for CaptureRequests where CaptureRequest#CONTROL_VIDEO_STABILIZATION_MODE
is set to CameraMetadata#CONTROL_VIDEO_STABILIZATION_MODE_PREVIEW_STABILIZATION
Target 1 | Target 2 | Sample use case(s) | ||
---|---|---|---|---|
Type | Max size | Type | Max size | |
PRIV / YUV |
s1440p |
Stabilized preview, GPU video processing, or no-preview stabilized video recording. | ||
PRIV / YUV |
s1440p |
JPEG / YUV |
MAXIMUM |
Standard still imaging with stabilized preview. |
PRIV / YUV |
PREVIEW |
PRIV / YUV |
s1440p |
High-resolution recording with stabilized preview and recording stream. |
For the maximum size column, PREVIEW refers to the best size match to the device's screen resolution, or to 1080p (1920x1080), whichever is smaller. RECORD refers to the camera device's maximum supported recording resolution, as determined by android.media.CamcorderProfile
. MAXIMUM refers to the camera device's maximum output resolution for that format or target from StreamConfigurationMap#getOutputSizes(int)
.
Since the capabilities of camera devices vary greatly, a given camera device may support target combinations with sizes outside of these guarantees, but this can only be tested for by calling isSessionConfigurationSupported
or attempting to create a session with such targets.
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.
Reprocessing
If a camera device supports YUV reprocessing (CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES_YUV_REPROCESSING
) or PRIVATE reprocessing (CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING
), the application can also create a reprocessable capture session to submit reprocess capture requests in addition to regular capture requests, by setting an input configuration
for the session. A reprocess capture request takes the next available buffer from the session's input Surface, and sends it through the camera device's processing pipeline again, to produce buffers for the request's target output Surfaces. No new image data is captured for a reprocess request. However the input buffer provided by the application must be captured previously by the same camera device in the same session directly (e.g. for Zero-Shutter-Lag use case) or indirectly (e.g. combining multiple output images).
The active reprocessable capture session determines an input Surface
and the set of potential output Surfaces for the camera devices for each capture request. The application can use #createCaptureRequest to create regular capture requests to capture new images from the camera device, and use createReprocessCaptureRequest
to create reprocess capture requests to process buffers from the input Surface
. Some combinations of output Surfaces in a session may not be used in a request simultaneously. The guaranteed combinations of output Surfaces that can be used in a request simultaneously are listed in the tables under #createCaptureSession. All the output Surfaces in one capture request will come from the same source, either from a new capture by the camera device, or from the input Surface depending on if the request is a reprocess capture request.
Input formats and sizes supported by the camera device can be queried via StreamConfigurationMap#getInputFormats
and StreamConfigurationMap#getInputSizes
. For each supported input format, the camera device supports a set of output formats and sizes for reprocessing that can be queried via StreamConfigurationMap#getValidOutputFormatsForInput
and android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes. While output Surfaces with formats that aren't valid reprocess output targets for the input configuration can be part of a session, they cannot be used as targets for a reprocessing request.
Since the application cannot access android.graphics.ImageFormat#PRIVATE
images directly, an output Surface created by android.media.ImageReader#newInstance with android.graphics.ImageFormat#PRIVATE
as the format will be considered as intended to be used for reprocessing input and thus the android.media.ImageReader
size must match one of the supported input sizes for android.graphics.ImageFormat#PRIVATE
format. Otherwise, creating a reprocessable capture session will fail.
Starting from API level 30, recreating a reprocessable capture session will flush all the queued but not yet processed buffers from the input surface.
The configurations in the tables below are guaranteed for creating a reprocessable capture session if the camera device supports YUV reprocessing or PRIVATE reprocessing. However, not all output targets used to create a reprocessable session may be used in a CaptureRequest
simultaneously. For devices that support only 1 output target in a reprocess CaptureRequest
, submitting a reprocess CaptureRequest
with multiple output targets will result in a CaptureFailure
. For devices that support multiple output targets in a reprocess CaptureRequest
, the guaranteed output targets that can be included in a CaptureRequest
simultaneously are listed in the tables under #createCaptureSession. For example, with a FULL-capability (CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
==
FULL
) device that supports PRIVATE reprocessing, an application can create a reprocessable capture session with 1 input, (PRIV
, MAXIMUM
), and 3 outputs, (PRIV
, MAXIMUM
), (PRIV
, PREVIEW
), and (YUV
, MAXIMUM
). However, it's not guaranteed that an application can submit a regular or reprocess capture with (PRIV
, MAXIMUM
) and (YUV
, MAXIMUM
) outputs based on the table listed under #createCaptureSession. In other words, use the tables below to determine the guaranteed stream configurations for creating a reprocessable capture session, and use the tables under #createCaptureSession to determine the guaranteed output targets that can be submitted in a regular or reprocess CaptureRequest
simultaneously.
Reprocessing with 10-bit output targets on 10-bit capable CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES_DYNAMIC_RANGE_TEN_BIT
devices is not supported. Trying to initialize a repreocessable capture session with one ore more output configurations set OutputConfiguration#setDynamicRangeProfile
to use a 10-bit dynamic range profile android.hardware.camera2.params.DynamicRangeProfiles
will trigger IllegalArgumentException
.
LIMITED-level (CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
==
LIMITED
) devices support at least the following stream combinations for creating a reprocessable capture session in addition to those listed earlier for regular captures for LIMITED
devices:
LIMITED-level additional guaranteed configurations for creating a reprocessable capture session ( PRIV input is guaranteed only if PRIVATE reprocessing is supported. YUV input is guaranteed only if YUV reprocessing is supported) |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Input | Target 1 | Target 2 | Target 3 | Target 4 | Sample use case(s) | |||||
Type | Max size | Type | Max size | Type | Max size | Type | Max size | Type | Max size | |
PRIV /YUV |
MAXIMUM |
Same as input | MAXIMUM |
JPEG |
MAXIMUM |
No-viewfinder still image reprocessing. | ||||
PRIV /YUV |
MAXIMUM |
Same as input | MAXIMUM |
PRIV |
PREVIEW |
JPEG |
MAXIMUM |
ZSL(Zero-Shutter-Lag) still imaging. | ||
PRIV /YUV |
MAXIMUM |
Same as input | MAXIMUM |
YUV |
PREVIEW |
JPEG |
MAXIMUM |
ZSL still and in-app processing imaging. | ||
PRIV /YUV |
MAXIMUM |
Same as input | MAXIMUM |
YUV |
PREVIEW |
YUV |
PREVIEW |
JPEG |
MAXIMUM |
ZSL in-app processing with still capture. |
FULL-level (CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
==
FULL
) devices support at least the following stream combinations for creating a reprocessable capture session in addition to those for LIMITED
devices:
FULL-level additional guaranteed configurations for creating a reprocessable capture session ( PRIV input is guaranteed only if PRIVATE reprocessing is supported. YUV input is guaranteed only if YUV reprocessing is supported) |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Input | Target 1 | Target 2 | Target 3 | Target 4 | Sample use case(s) | |||||
Type | Max size | Type | Max size | Type | Max size | Type | Max size | Type | Max size | |
YUV |
MAXIMUM |
YUV |
MAXIMUM |
PRIV |
PREVIEW |
Maximum-resolution multi-frame image fusion in-app processing with regular preview. | ||||
YUV |
MAXIMUM |
YUV |
MAXIMUM |
YUV |
PREVIEW |
Maximum-resolution multi-frame image fusion two-input in-app processing. | ||||
PRIV /YUV |
MAXIMUM |
Same as input | MAXIMUM |
PRIV |
PREVIEW |
YUV |
RECORD |
High-resolution ZSL in-app video processing with regular preview. | ||
PRIV |
MAXIMUM |
PRIV |
MAXIMUM |
PRIV |
PREVIEW |
YUV |
MAXIMUM |
Maximum-resolution ZSL in-app processing with regular preview. | ||
PRIV |
MAXIMUM |
PRIV |
MAXIMUM |
YUV |
PREVIEW |
YUV |
MAXIMUM |
Maximum-resolution two-input ZSL in-app processing. | ||
PRIV /YUV |
MAXIMUM |
Same as input | MAXIMUM |
PRIV |
PREVIEW |
YUV |
PREVIEW |
JPEG |
MAXIMUM |
ZSL still capture and in-app processing. |
RAW-capability (CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
includes RAW
) devices additionally support at least the following stream combinations for creating a reprocessable capture session on both FULL
and LIMITED
devices
RAW-capability additional guaranteed configurations for creating a reprocessable capture session ( PRIV input is guaranteed only if PRIVATE reprocessing is supported. YUV input is guaranteed only if YUV reprocessing is supported) |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Input | Target 1 | Target 2 | Target 3 | Target 4 | Sample use case(s) | |||||
Type | Max size | Type | Max size | Type | Max size | Type | Max size | Type | Max size | |
PRIV /YUV |
MAXIMUM |
Same as input | MAXIMUM |
YUV |
PREVIEW |
RAW |
MAXIMUM |
Mutually exclusive ZSL in-app processing and DNG capture. | ||
PRIV /YUV |
MAXIMUM |
Same as input | MAXIMUM |
PRIV |
PREVIEW |
YUV |
PREVIEW |
RAW |
MAXIMUM |
Mutually exclusive ZSL in-app processing and preview with DNG capture. |
PRIV /YUV |
MAXIMUM |
Same as input | MAXIMUM |
YUV |
PREVIEW |
YUV |
PREVIEW |
RAW |
MAXIMUM |
Mutually exclusive ZSL two-input in-app processing and DNG capture. |
PRIV /YUV |
MAXIMUM |
Same as input | MAXIMUM |
PRIV |
PREVIEW |
JPEG |
MAXIMUM |
RAW |
MAXIMUM |
Mutually exclusive ZSL still capture and preview with DNG capture. |
PRIV /YUV |
MAXIMUM |
Same as input | MAXIMUM |
YUV |
PREVIEW |
JPEG |
MAXIMUM |
RAW |
MAXIMUM |
Mutually exclusive ZSL in-app processing with still capture and DNG capture. |
LEVEL-3 (CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
==
LEVEL_3
) devices support at least the following stream combinations for creating a reprocessable capture session in addition to those for FULL
devices. Note that while the second configuration allows for configuring MAXIMUM
YUV
and JPEG
outputs at the same time, that configuration is not listed for regular capture sessions, and therefore simultaneous output to both targets is not allowed.
LEVEL-3 additional guaranteed configurations for creating a reprocessable capture session ( PRIV input is guaranteed only if PRIVATE reprocessing is supported. YUV input is always guaranteed. |
||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Input | Target 1 | Target 2 | Target 3 | Target 4 | Target 5 | Sample use case(s) | ||||||
Type | Max size | Type | Max size | Type | Max size | Type | Max size | Type | Max size | Type | Max size | |
YUV |
MAXIMUM |
YUV |
MAXIMUM |
PRIV |
PREVIEW |
PRIV |
640x480 |
RAW |
MAXIMUM |
In-app viewfinder analysis with ZSL and RAW. | ||
PRIV /YUV |
MAXIMUM |
Same as input | MAXIMUM |
PRIV |
PREVIEW |
PRIV |
640x480 |
RAW |
MAXIMUM |
JPEG |
MAXIMUM |
In-app viewfinder analysis with ZSL, RAW, and JPEG reprocessing output. |
If a camera device supports multi-resolution YUV
input and multi-resolution YUV
output or supports multi-resolution PRIVATE
input and multi-resolution PRIVATE
output, the additional mandatory stream combinations for LIMITED and FULL devices are listed below (MULTI_RES
in the Max size column refers to a MultiResolutionImageReader
for output, and a multi-resolution InputConfiguration
for input):
LIMITED-level additional guaranteed configurations for creating a reprocessable capture session with multi-resolution input and multi-resolution outputs ( PRIV input is guaranteed only if PRIVATE reprocessing is supported. YUV input is guaranteed only if YUV reprocessing is supported) |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Input | Target 1 | Target 2 | Target 3 | Target 4 | Sample use case(s) | |||||
Type | Max size | Type | Max size | Type | Max size | Type | Max size | Type | Max size | |
PRIV /YUV |
MULTI_RES |
Same as input | MULTI_RES |
JPEG |
MULTI_RES |
No-viewfinder still image reprocessing. | ||||
PRIV /YUV |
MULTI_RES |
Same as input | MULTI_RES |
PRIV |
PREVIEW |
JPEG |
MULTI_RES |
ZSL(Zero-Shutter-Lag) still imaging. | ||
PRIV /YUV |
MULTI_RES |
Same as input | MULTI_RES |
YUV |
PREVIEW |
JPEG |
MULTI_RES |
ZSL still and in-app processing imaging. | ||
PRIV /YUV |
MULTI_RES |
Same as input | MULTI_RES |
YUV |
PREVIEW |
YUV |
PREVIEW |
JPEG |
MULTI_RES |
ZSL in-app processing with still capture. |
FULL-level additional guaranteed configurations for creating a reprocessable capture session with multi-resolution input and multi-resolution outputs ( PRIV input is guaranteed only if PRIVATE reprocessing is supported. YUV input is guaranteed only if YUV reprocessing is supported) |
||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Input | Target 1 | Target 2 | Target 3 | Target 4 | Sample use case(s) | |||||
Type | Max size | Type | Max size | Type | Max size | Type | Max size | Type | Max size | |
PRIV |
MULTI_RES |
PRIV |
MULTI_RES |
PRIV |
PREVIEW |
YUV |
MULTI_RES |
Maximum-resolution ZSL in-app processing with regular preview. | ||
PRIV |
MULTI_RES |
PRIV |
MULTI_RES |
YUV |
PREVIEW |
YUV |
MULTI_RES |
Maximum-resolution two-input ZSL in-app processing. | ||
PRIV /YUV |
MULTI_RES |
Same as input | MULTI_RES |
PRIV |
PREVIEW |
YUV |
PREVIEW |
JPEG |
MULTI_RES |
ZSL still capture and in-app processing. |
Devices with the ULTRA_HIGH_RESOLUTION_SENSOR capability have some additional guarantees which clients can take advantage of :
Additional guaranteed combinations for ULTRA_HIGH_RESOLUTION sensors (YUV / PRIV inputs are guaranteed only if YUV / PRIVATE reprocessing are supported) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Input | Target 1 | Target 2 | Target 3 | Sample use case(s) | ||||||||
Type | SC Map | Max size | Type | SC Map | Max size | Type | SC Map | Max size | Type | SC Map | Max size | |
RAW |
MAX_RES |
MAX |
RAW |
MAX_RES |
MAX |
PRIV / YUV |
DEFAULT |
PREVIEW |
RAW remosaic reprocessing with separate preview | |||
RAW |
MAX_RES |
MAX |
RAW |
MAX_RES |
MAX |
PRIV / YUV |
DEFAULT |
PREVIEW |
JPEG / YUV |
MAX_RES |
MAX |
Ultra high res RAW -> JPEG / YUV with seperate preview |
YUV / PRIV |
MAX_RES |
MAX |
YUV / PRIV |
MAX_RES |
MAX |
YUV / PRIV |
DEFAULT |
PREVIEW |
JPEG |
MAX_RES |
MAX |
Ultra high res PRIV / YUV -> YUV / JPEG reprocessing with seperate preview |
No additional mandatory stream combinations for RAW capability and LEVEL-3 hardware level.
Constrained high-speed recording
The application can use a normal capture session
for high speed capture if the desired high speed FPS ranges are advertised by CameraCharacteristics#CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES
, in which case all API semantics associated with normal capture sessions applies.
A high-speed capture session
can be use for high speed video recording (>=120fps) when the camera device supports high speed video capability (i.e., CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
contains CameraMetadata#REQUEST_AVAILABLE_CAPABILITIES_CONSTRAINED_HIGH_SPEED_VIDEO
). A constrained high-speed capture session has special limitations compared with a normal capture session:
- In addition to the output target Surface requirements specified above for regular captures, a high speed capture session will only support up to 2 output Surfaces, though the application might choose to configure just one Surface (e.g., preview only). All Surfaces must be either video encoder surfaces (acquired by
android.media.MediaRecorder#getSurface
orandroid.media.MediaCodec#createInputSurface
) or preview surfaces (obtained fromandroid.view.SurfaceView
,android.graphics.SurfaceTexture
viaandroid.view.Surface#Surface(android.graphics.SurfaceTexture)
). The Surface sizes must be one of the sizes reported byStreamConfigurationMap#getHighSpeedVideoSizes
. When multiple Surfaces are configured, their size must be same. - An active high speed capture session only accepts request lists created via
CameraConstrainedHighSpeedCaptureSession#createHighSpeedRequestList
, and the request list can only be submitted to this session viacaptureBurst
, orsetRepeatingBurst
. - The FPS ranges being requested to this session must be selected from
StreamConfigurationMap#getHighSpeedVideoFpsRangesFor
. The application can still useCaptureRequest#CONTROL_AE_TARGET_FPS_RANGE
to control the desired FPS range. Switching to an FPS range that has differentmaximum FPS
may trigger some camera device reconfigurations, which may introduce extra latency. It is recommended that the application avoids unnecessary maximum target FPS changes as much as possible during high speed streaming. - For the request lists submitted to this session, the camera device will override the
control mode
, auto-exposure (AE), auto-white balance (AWB) and auto-focus (AF) toCameraMetadata#CONTROL_MODE_AUTO
,CameraMetadata#CONTROL_AE_MODE_ON
,CameraMetadata#CONTROL_AWB_MODE_AUTO
andCameraMetadata#CONTROL_AF_MODE_CONTINUOUS_VIDEO
, respectively. All post-processing block mode controls will be overridden to be FAST. Therefore, no manual control of capture and post-processing parameters is possible. Beside these, only a subset of controls will work, seeCameraMetadata#REQUEST_AVAILABLE_CAPABILITIES_CONSTRAINED_HIGH_SPEED_VIDEO
for more details.
Parameters | |
---|---|
config |
SessionConfiguration!: A session configuration (see SessionConfiguration ). |
Exceptions | |
---|---|
java.lang.IllegalArgumentException |
In case the session configuration is invalid; or the output configurations are empty; or the session configuration executor is invalid; or the output dynamic range combination is invalid/unsupported. |
android.hardware.camera2.CameraAccessException |
In case the camera device is no longer connected or has encountered a fatal error. |
See Also
#createCaptureSession(List, CameraCaptureSession.StateCallback, Handler)
#createCaptureSessionByOutputConfigurations
#createReprocessableCaptureSession
#createConstrainedHighSpeedCaptureSession
android.hardware.camera2.params.OutputConfiguration#setDynamicRangeProfile
android.hardware.camera2.params.DynamicRangeProfiles
createCaptureSessionByOutputConfigurations
abstract funcreateCaptureSessionByOutputConfigurations(
outputConfigurations: MutableList<OutputConfiguration!>!,
callback: CameraCaptureSession.StateCallback!,
handler: Handler?
): Unit
Deprecated: Please use createCaptureSession(android.hardware.camera2.params.SessionConfiguration)
for the full set of configuration options available.
Create a new camera capture session by providing the target output set of Surfaces and its corresponding surface configuration to the camera device.
Parameters | |
---|---|
handler |
Handler?: This value may be null . |
createConstrainedHighSpeedCaptureSession
abstract funcreateConstrainedHighSpeedCaptureSession(
outputs: MutableList<Surface!>,
callback: CameraCaptureSession.StateCallback,
handler: Handler?
): Unit
Deprecated: Please use createCaptureSession(android.hardware.camera2.params.SessionConfiguration)
for the full set of configuration options available.
Create a new constrained high speed capture session.
Parameters | |
---|---|
outputs |
MutableList<Surface!>: The new set of Surfaces that should be made available as targets for captured high speed image data. This value cannot be null . |
callback |
CameraCaptureSession.StateCallback: The callback to notify about the status of the new capture session. This value cannot be null . |
handler |
Handler?: The handler on which the callback should be invoked, or null to use the current thread's looper . |
Exceptions | |
---|---|
java.lang.IllegalArgumentException |
if the set of output Surfaces do not meet the requirements, the callback is null, or the handler is null but the current thread has no looper, or the camera device doesn't support high speed video capability. |
android.hardware.camera2.CameraAccessException |
if the camera device is no longer connected or has encountered a fatal error |
java.lang.IllegalStateException |
if the camera device has been closed |
See Also
android.hardware.camera2.CaptureRequest#CONTROL_AE_TARGET_FPS_RANGE
android.hardware.camera2.params.StreamConfigurationMap#getHighSpeedVideoSizes
android.hardware.camera2.params.StreamConfigurationMap#getHighSpeedVideoFpsRangesFor
android.hardware.camera2.CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
android.hardware.camera2.CameraMetadata#REQUEST_AVAILABLE_CAPABILITIES_CONSTRAINED_HIGH_SPEED_VIDEO
android.hardware.camera2.CameraCaptureSession#captureBurst
android.hardware.camera2.CameraCaptureSession#setRepeatingBurst
android.hardware.camera2.CameraConstrainedHighSpeedCaptureSession#createHighSpeedRequestList
createExtensionSession
open fun createExtensionSession(extensionConfiguration: ExtensionSessionConfiguration): Unit
Initialize a specific device-specific extension augmented camera capture session.
Extension sessions can be used to enable device-specific operation modes like CameraExtensionCharacteristics#EXTENSION_NIGHT
or CameraExtensionCharacteristics#EXTENSION_HDR
. These modes are less flexible than the full camera API, but enable access to more sophisticated processing algorithms that can capture multi-frame bursts to generate single output images. To query for available extensions on this device call CameraExtensionCharacteristics#getSupportedExtensions()
.
This method will also trigger the setup of the internal processing pipeline for extension augmented preview and multi-frame still capture.
If a prior CameraCaptureSession already exists when this method is called, the previous session will no longer be able to accept new capture requests and will be closed. Any in-progress capture requests made on the prior session will be completed before it's closed.
The CameraExtensionSession will be active until the client either calls CameraExtensionSession.close() or creates a new camera capture session. In both cases all internal resources will be released, continuous repeating requests stopped and any pending multi-frame capture requests flushed.
Note that the CameraExtensionSession currently supports at most wo multi frame capture surface formats: ImageFormat.JPEG will be supported by all extensions and ImageFormat.YUV_420_888 may or may not be supported. Clients must query the multi-frame capture format support using CameraExtensionCharacteristics#getExtensionSupportedSizes(int, int)
. For repeating requests CameraExtensionSession supports only android.graphics.SurfaceTexture
as output. Clients can query the supported resolution for the repeating request output using getExtensionSupportedSizes(..., Class)
.
At the very minimum the initialization expects either one valid output surface for repeating or one valid output for high-quality single requests registered in the outputs argument of the extension configuration argument. At the maximum the initialization will accept two valid output surfaces, one for repeating and the other for single requests. Additional unsupported surfaces passed to ExtensionSessionConfiguration will cause an IllegalArgumentException
to be thrown.
Parameters | |
---|---|
extensionConfiguration |
ExtensionSessionConfiguration: extension configuration This value cannot be null . |
Exceptions | |
---|---|
java.lang.IllegalArgumentException |
If both the preview and still capture surfaces are not set or invalid, or if any of the registered surfaces do not meet the device-specific extension requirements such as dimensions and/or (output format)/(surface type), or if the extension is not supported, or if any of the output configurations select a dynamic range different from android.hardware.camera2.params.DynamicRangeProfiles#STANDARD , or if any of the output configurations sets a stream use case different from android.hardware.camera2.CameraCharacteristics#SCALER_AVAILABLE_STREAM_USE_CASES_DEFAULT . |
createReprocessCaptureRequest
abstract fun createReprocessCaptureRequest(inputResult: TotalCaptureResult): CaptureRequest.Builder
Create a CaptureRequest.Builder
for a new reprocess CaptureRequest
from a TotalCaptureResult
.
Each reprocess CaptureRequest
processes one buffer from CameraCaptureSession
's input Surface
to all output Surfaces
included in the reprocess capture request. The reprocess input images must be generated from one or multiple output images captured from the same camera device. The application can provide input images to camera device via android.media.ImageWriter#queueInputImage
. The application must use the capture result of one of those output images to create a reprocess capture request so that the camera device can use the information to achieve optimal reprocess image quality. For camera devices that support only 1 output Surface
, submitting a reprocess CaptureRequest
with multiple output targets will result in a CaptureFailure
. From Android 14 onward, CaptureRequest#CONTROL_CAPTURE_INTENT
will be set to CameraMetadata#CONTROL_CAPTURE_INTENT_STILL_CAPTURE
by default. Prior to Android 14, apps will need to explicitly set this key themselves.
Parameters | |
---|---|
inputResult |
TotalCaptureResult: The capture result of the output image or one of the output images used to generate the reprocess input image for this capture request. This value cannot be null . |
Return | |
---|---|
CaptureRequest.Builder |
This value cannot be null . |
Exceptions | |
---|---|
java.lang.IllegalArgumentException |
if inputResult is null. |
android.hardware.camera2.CameraAccessException |
if the camera device is no longer connected or has encountered a fatal error |
java.lang.IllegalStateException |
if the camera device has been closed |
createReprocessableCaptureSession
abstract funcreateReprocessableCaptureSession(
inputConfig: InputConfiguration,
outputs: MutableList<Surface!>,
callback: CameraCaptureSession.StateCallback,
handler: Handler?
): Unit
Deprecated: Please use createCaptureSession(android.hardware.camera2.params.SessionConfiguration)
for the full set of configuration options available.
Create a new reprocessable camera capture session by providing the desired reprocessing input Surface configuration and the target output set of Surfaces to the camera device.
Parameters | |
---|---|
inputConfig |
InputConfiguration: The configuration for the input Surface This value cannot be null . |
outputs |
MutableList<Surface!>: The new set of Surfaces that should be made available as targets for captured image data. This value cannot be null . |
callback |
CameraCaptureSession.StateCallback: The callback to notify about the status of the new capture session. This value cannot be null . |
handler |
Handler?: The handler on which the callback should be invoked, or null to use the current thread's looper . |
Exceptions | |
---|---|
java.lang.IllegalArgumentException |
if the input configuration is null or not supported, the set of output Surfaces do not meet the requirements, the callback is null, or the handler is null but the current thread has no looper. |
android.hardware.camera2.CameraAccessException |
if the camera device is no longer connected or has encountered a fatal error |
java.lang.IllegalStateException |
if the camera device has been closed |
See Also
android.hardware.camera2.CameraCaptureSession
android.hardware.camera2.params.StreamConfigurationMap#getInputFormats
android.hardware.camera2.params.StreamConfigurationMap#getInputSizes
android.hardware.camera2.params.StreamConfigurationMap#getValidOutputFormatsForInput
android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes(int)
android.hardware.camera2.params.StreamConfigurationMap#getOutputSizes(Class)
android.media.ImageWriter
android.media.ImageReader
createReprocessableCaptureSessionByConfigurations
abstract funcreateReprocessableCaptureSessionByConfigurations(
inputConfig: InputConfiguration,
outputs: MutableList<OutputConfiguration!>,
callback: CameraCaptureSession.StateCallback,
handler: Handler?
): Unit
Deprecated: Please use createCaptureSession(android.hardware.camera2.params.SessionConfiguration)
for the full set of configuration options available.
Create a new reprocessable camera capture session by providing the desired reprocessing input configuration and output OutputConfiguration
to the camera device.
Parameters | |
---|---|
inputConfig |
InputConfiguration: This value cannot be null . |
outputs |
MutableList<OutputConfiguration!>: This value cannot be null . |
callback |
CameraCaptureSession.StateCallback: This value cannot be null . |
handler |
Handler?: This value may be null . |
getCameraAudioRestriction
open fun getCameraAudioRestriction(): Int
Get currently applied global camera audio restriction mode.
Application can use this method to retrieve the system-wide camera audio restriction settings described in setCameraAudioRestriction
.
Return | |
---|---|
Int |
The current system-wide mute mode setting in effect Value is android.hardware.camera2.CameraDevice#AUDIO_RESTRICTION_NONE , android.hardware.camera2.CameraDevice#AUDIO_RESTRICTION_VIBRATION , or android.hardware.camera2.CameraDevice#AUDIO_RESTRICTION_VIBRATION_SOUND |
Exceptions | |
---|---|
android.hardware.camera2.CameraAccessException |
if the camera device is no longer connected or has encountered a fatal error |
java.lang.IllegalStateException |
if the camera device has been closed |
See Also
getId
abstract fun getId(): String
Get the ID of this camera device.
This matches the ID given to android.hardware.camera2.CameraManager#openCamera to instantiate this this camera device.
This ID can be used to query the camera device's fixed properties
with android.hardware.camera2.CameraManager#getCameraCharacteristics
.
This method can be called even if the device has been closed or has encountered a serious error.
Return | |
---|---|
String |
the ID for this camera device This value cannot be null . |
isSessionConfigurationSupported
open fun isSessionConfigurationSupported(sessionConfig: SessionConfiguration): Boolean
Checks whether a particular SessionConfiguration
is supported by the camera device.
This method performs a runtime check of a given SessionConfiguration
. The result confirms whether or not the passed session configuration can be successfully used to create a camera capture session using CameraDevice#createCaptureSession(
.
The method can be called at any point before, during and after active capture session. It must not impact normal camera behavior in any way and must complete significantly faster than creating a regular or constrained capture session.
Although this method is faster than creating a new capture session, it is not intended to be used for exploring the entire space of supported stream combinations. The available mandatory stream combinations android.hardware.camera2.params.MandatoryStreamCombination
are better suited for this purpose.
NOTE: For apps targeting android.os.Build.VERSION_CODES#VANILLA_ICE_CREAM
and above, this method will automatically delegate to CameraDeviceSetup#isSessionConfigurationSupported
whenever possible. This means that the output of this method will consider parameters set through SessionConfiguration#setSessionParameters
as well.
Session Parameters will be ignored for apps targeting <= android.os.Build.VERSION_CODES#UPSIDE_DOWN_CAKE
, or if CameraManager#isCameraDeviceSetupSupported
returns false for the camera id associated with this CameraDevice
.
Parameters | |
---|---|
sessionConfig |
SessionConfiguration: This value cannot be null . |
Return | |
---|---|
Boolean |
true if the given session configuration is supported by the camera device false otherwise. |
Exceptions | |
---|---|
java.lang.UnsupportedOperationException |
if the query operation is not supported by the camera device |
java.lang.IllegalArgumentException |
if the session configuration is invalid |
android.hardware.camera2.CameraAccessException |
if the camera device is no longer connected or has encountered a fatal error |
java.lang.IllegalStateException |
if the camera device has been closed |
setCameraAudioRestriction
open fun setCameraAudioRestriction(mode: Int): Unit
Set audio restriction mode when this CameraDevice is being used.
Some camera hardware (e.g. devices with optical image stabilization support) are sensitive to device vibration and video recordings can be ruined by unexpected sounds. Applications can use this method to suppress vibration or sounds coming from ringtones, alarms or notifications. Other vibration or sounds (e.g. media playback or accessibility) will not be muted.
The mute mode is a system-wide setting. When multiple CameraDevice objects are setting different modes, the system will pick a the mode that's union of all modes set by CameraDevice. Applications can also use getCameraAudioRestriction
to query current system-wide camera mute mode in effect.
The mute settings from this CameraDevice will be automatically removed when the CameraDevice is closed or the application is disconnected from the camera.
Parameters | |
---|---|
mode |
Int: An enumeration selecting the audio restriction mode for this camera device. Value is android.hardware.camera2.CameraDevice#AUDIO_RESTRICTION_NONE , android.hardware.camera2.CameraDevice#AUDIO_RESTRICTION_VIBRATION , or android.hardware.camera2.CameraDevice#AUDIO_RESTRICTION_VIBRATION_SOUND |
Exceptions | |
---|---|
java.lang.IllegalArgumentException |
if the mode is not supported |
android.hardware.camera2.CameraAccessException |
if the camera device is no longer connected or has encountered a fatal error |
java.lang.IllegalStateException |
if the camera device has been closed |
See Also