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The new version of ICameraDeviceCallback supports shutter notify with readout timestamp. The readout timestamp is used to re-time viewfinder frames to reduce jitter. When camera runs at fixed frame rate, the start_of_exposure time intervals may change, but start_or_readout intervals are constant. Test: Camera VTS test Bug: 189380857 Change-Id: I4c3856a4e30caa8cdf8417d437de1de3190c6fd6
Camera HALs
Overview:
The camera.* HAL tree is used by the Android camera service to discover and operate camera devices available on the device.
More details and versioning information can be found within each particular HAL.
More complete information about the Android camera HAL and subsystem can be found at source.android.com.