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Commit 9895959a authored by Shuzhen Wang's avatar Shuzhen Wang
Browse files

Camera: Clarify benefit of readout vs exposure timestamp 

Update developer doc with minor clarification.

Test: Build
Bug: 229097448
Bug: 229773853
Change-Id: Ice7c88a47366759c6024de7a9a30a8114c1ff655
parent 10763ffd

core/java/android/hardware/camera2/CameraCaptureSession.java

+3 −2
Original line number Diff line number Diff line
@@ -1241,8 +1241,9 @@ public abstract class CameraCaptureSession implements AutoCloseable { 
         * {@link #onCaptureStarted}. Unlike {@link #onCaptureStarted}, instead of passing

         * a timestamp of start of exposure, this callback passes a timestamp of start of

         * camera data readout. This is useful because for a camera running at fixed frame

         * rate, the start of readout is at fixed interval, but not necessary for the start

         * of exposure.</p>

         * rate, the start of readout is at fixed interval, which is not necessarily true for

         * the start of exposure, particularly when autoexposure is changing exposure duration

         * between frames.</p>

         *

         * <p>This timestamp may not match {@link CaptureResult#SENSOR_TIMESTAMP the result

         * timestamp field}. It will, however, match the timestamp of buffers sent to the