diff --git a/media/java/android/media/MediaCodec.java b/media/java/android/media/MediaCodec.java
index 1ca96583112e7..d26412789f39e 100644
--- a/media/java/android/media/MediaCodec.java
+++ b/media/java/android/media/MediaCodec.java
@@ -3188,9 +3188,55 @@ final public class MediaCodec {
     /**
      *  Returns Analytics/Metrics data about the current content being
      *
-     * @return a Bundle containint the set of attributes and values available
+     * @return a Bundle containing the set of attributes and values available
      * for the media being handled by this instance of MediaCodec
      *
+     *  <table style="width: 0%">
+     *   <thead>
+     *    <tr>
+     *     <th>Key</th>
+     *     <th>Type</th>
+     *     <th>Description</th>
+     *    </tr>
+     *   </thead>
+     *   <tbody>
+     *    <tr>
+     *     <td>{@code "codec"}</td>
+     *     <td>String</td>
+     *     <td>Identifies the particular codec in use</td>
+     *    </tr><tr>
+     *     <td>{@code "mime"}</td>
+     *     <td>String</td>
+     *     <td>Mime type of the media being encoded/decoded</td>
+     *    </tr><tr>
+     *     <td>{@code "mode"}</td>
+     *     <td>String</td>
+     *     <td>"Audio" or "Video"</td>
+     *    </tr><tr>
+     *     <td>{@code "secure"}</td>
+     *     <td>Integer</td>
+     *     <td>Indicates whether the code is operating on secure content and
+     *         may also use capabilities in android.media.MediaCrypto</td>
+     *    </tr><tr>
+     *     <td>{@code "height"}</td>
+     *     <td>Integer</td>
+     *     <td>Height (pixels); valid only when mode=video</td>
+     *    </tr><tr>
+     *     <td>{@code "width"}</td>
+     *     <td>Integer</td>
+     *     <td>Width (pixels); valid only when mode=video</td>
+     *    </tr><tr>
+     *     <td>{@code "rotation"}</td>
+     *     <td>Integer</td>
+     *     <td>rotation (degrees) to orient the video onto the target surface;
+     *         valid only when mode=video. Note there may be additional
+     *         rotations applied when the surface is mapped to the screen.</td>
+     *    </tr>
+     *   </tbody>
+     *  </table>
+     *
+     *  Additional fields specific to individual codecs will also appear in
+     *  the return value.
      */
     public native Bundle getMetrics();
 
diff --git a/media/java/android/media/MediaExtractor.java b/media/java/android/media/MediaExtractor.java
index 01ae36ffccfe0..b9e409d177485 100644
--- a/media/java/android/media/MediaExtractor.java
+++ b/media/java/android/media/MediaExtractor.java
@@ -656,6 +656,33 @@ final public class MediaExtractor {
      * @return the set of keys and values available for the media being
      * handled by this instance of MediaExtractor
      *
+     *  <table style="width: 0%">
+     *   <thead>
+     *    <tr>
+     *     <th>Key</th>
+     *     <th>Type</th>
+     *     <th>Description</th>
+     *    </tr>
+     *   </thead>
+     *   <tbody>
+     *    <tr>
+     *     <td>{@code "fmt"}</td>
+     *     <td>String</td>
+     *     <td>The container format (which determines the handler)</td>
+     *    </tr><tr>
+     *     <td>{@code "mime"}</td>
+     *     <td>String</td>
+     *     <td>Mime type of the container.</td>
+     *    </tr><tr>
+     *     <td>{@code "ntrk"}</td>
+     *     <td>Integer</td>
+     *     <td>Number of tracks in the container</td>
+     *    </tr>
+     *   </tbody>
+     *  </table>
+     *
+     *  Additional fields specific to individual codecs will also appear in
+     *  the return value.
      */
     public native Bundle getMetrics();
 
diff --git a/media/java/android/media/MediaPlayer.java b/media/java/android/media/MediaPlayer.java
index 1ebbe855a43f0..edae9b865bcef 100644
--- a/media/java/android/media/MediaPlayer.java
+++ b/media/java/android/media/MediaPlayer.java
@@ -1493,6 +1493,64 @@ public class MediaPlayer extends PlayerBase
      *
      * @return the a map of attributes and values available for this video
      * player or null if no metrics are available.
+     *
+     *  <table style="width: 0%">
+     *   <thead>
+     *    <tr>
+     *     <th>Key</th>
+     *     <th>Type</th>
+     *     <th>Description</th>
+     *    </tr>
+     *   </thead>
+     *   <tbody>
+     *    <tr>
+     *     <td>{@code "video/codec"}</td>
+     *     <td>String</td>
+     *     <td>Identifies the video codec in use</td>
+     *    </tr><tr>
+     *     <td>{@code "video/mime"}</td>
+     *     <td>String</td>
+     *     <td>Mime type of the video being encoded/decoded</td>
+     *    </tr><tr>
+     *     <td>{@code "audio/codec"}</td>
+     *     <td>String</td>
+     *     <td>Identifies the audio codec in use</td>
+     *    </tr><tr>
+     *     <td>{@code "audio/mime"}</td>
+     *     <td>String</td>
+     *     <td>Mime type of the audio being encoded/decoded</td>
+     *    </tr><tr>
+     *     <td>{@code "ht"}</td>
+     *     <td>Integer</td>
+     *     <td>Height (pixels); valid only when mode=video</td>
+     *    </tr><tr>
+     *     <td>{@code "wid"}</td>
+     *     <td>Integer</td>
+     *     <td>Width (pixels); valid only when mode=video</td>
+     *    </tr><tr>
+     *     <td>{@code "frame"}</td>
+     *     <td>Integer</td>
+     *     <td>Number of decoded video frames sent to the display</td>
+     *    </tr><tr>
+     *     <td>{@code "dropped"}</td>
+     *     <td>Integer</td>
+     *     <td>Number of decoded video frames that were not sent to display.
+     *         These frames were dropped by the player.</td>
+     *    </tr><tr>
+     *     <td>{@code "durationMs"}</td>
+     *     <td>Integer</td>
+     *     <td>The length of the media being played (in ms), e.g. "This video lasts for 30000 milliseconds". </td>
+     *    </tr><tr>
+     *     <td>{@code "playingMs"}</td>
+     *     <td>Integer</td>
+     *     <td>The time the media has been played (in ms). If you watch a
+     *         30 second twice through, this will report 60000 ms.</td>
+     *    </tr>
+     *   </tbody>
+     *  </table>
+     *
+     *  Additional fields specific to individual codecs will also appear in
+     *  the return value.
      */
     public native Bundle getMetrics();