diff --git a/core/java/android/hardware/camera2/params/OutputConfiguration.java b/core/java/android/hardware/camera2/params/OutputConfiguration.java
index bb0caa7..4a25177 100644
--- a/core/java/android/hardware/camera2/params/OutputConfiguration.java
+++ b/core/java/android/hardware/camera2/params/OutputConfiguration.java
@@ -166,7 +166,16 @@
      * {@link #TIMESTAMP_BASE_MONOTONIC}, which is roughly the same time base as
      * {@link android.os.SystemClock#uptimeMillis}.</li>
      * <li> For all other cases, the timestamp base is {@link #TIMESTAMP_BASE_SENSOR}, the same
-     * as what's specified by {@link CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE}.</li>
+     * as what's specified by {@link CameraCharacteristics#SENSOR_INFO_TIMESTAMP_SOURCE}.
+     * <ul><li> For a SurfaceTexture output surface, the camera system re-spaces the delivery
+     * of output frames based on image readout intervals, reducing viewfinder jitter. The timestamps
+     * of images remain to be {@link #TIMESTAMP_BASE_SENSOR}.</li></ul></li>
+     *
+     * <p>Note that the reduction of frame jitter for SurfaceView and SurfaceTexture comes with
+     * slight increase in photon-to-photon latency, which is the time from when photons hit the
+     * scene to when the corresponding pixels show up on the screen. If the photon-to-photon latency
+     * is more important than the smoothness of viewfinder, {@link #TIMESTAMP_BASE_SENSOR} should be
+     * used instead.</p>
      *
      * @see #TIMESTAMP_BASE_CHOREOGRAPHER_SYNCED
      * @see #TIMESTAMP_BASE_MONOTONIC