Camera2: update docs for reprocess timestamp
Bug: 21112186
Change-Id: Ie49c00c96f7e69b672df5afa34e06e3dcd49490f
diff --git a/core/java/android/hardware/camera2/CaptureResult.java b/core/java/android/hardware/camera2/CaptureResult.java
index f4017d0..96faad2 100644
--- a/core/java/android/hardware/camera2/CaptureResult.java
+++ b/core/java/android/hardware/camera2/CaptureResult.java
@@ -2988,6 +2988,10 @@
* timestamps measure time in the same timebase as {@link android.os.SystemClock#elapsedRealtimeNanos }, and they can
* be compared to other timestamps from other subsystems that
* are using that base.</p>
+ * <p>For reprocessing, the timestamp will match the start of exposure of
+ * the input image, i.e. {@link CaptureResult#SENSOR_TIMESTAMP the
+ * timestamp} in the TotalCaptureResult that was used to create the
+ * reprocess capture request.</p>
* <p><b>Units</b>: Nanoseconds</p>
* <p><b>Range of valid values:</b><br>
* > 0</p>