Import Android SDK Platform PI [4335822]

/google/data/ro/projects/android/fetch_artifact \
    --bid 4335822 \
    --target sdk_phone_armv7-win_sdk \
    sdk-repo-linux-sources-4335822.zip

AndroidVersion.ApiLevel has been modified to appear as 28

Change-Id: Ic8f04be005a71c2b9abeaac754d8da8d6f9a2c32

1 files changed, 1466 insertions, 0 deletions

diff --git a/android/media/MediaRecorder.java b/android/media/MediaRecorder.java
new file mode 100644
index 00000000..59a124fa
--- /dev/null
+++ b/android/media/MediaRecorder.java
@@ -0,0 +1,1466 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+import android.annotation.NonNull;
+import android.annotation.SystemApi;
+import android.app.ActivityThread;
+import android.hardware.Camera;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.Message;
+import android.os.PersistableBundle;
+import android.util.Log;
+import android.view.Surface;
+
+import java.io.File;
+import java.io.FileDescriptor;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.lang.ref.WeakReference;
+
+/**
+ * Used to record audio and video. The recording control is based on a
+ * simple state machine (see below).
+ *
+ * <p><img src="{@docRoot}images/mediarecorder_state_diagram.gif" border="0" />
+ * </p>
+ *
+ * <p>A common case of using MediaRecorder to record audio works as follows:
+ *
+ * <pre>MediaRecorder recorder = new MediaRecorder();
+ * recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
+ * recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
+ * recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
+ * recorder.setOutputFile(PATH_NAME);
+ * recorder.prepare();
+ * recorder.start();   // Recording is now started
+ * ...
+ * recorder.stop();
+ * recorder.reset();   // You can reuse the object by going back to setAudioSource() step
+ * recorder.release(); // Now the object cannot be reused
+ * </pre>
+ *
+ * <p>Applications may want to register for informational and error
+ * events in order to be informed of some internal update and possible
+ * runtime errors during recording. Registration for such events is
+ * done by setting the appropriate listeners (via calls
+ * (to {@link #setOnInfoListener(OnInfoListener)}setOnInfoListener and/or
+ * {@link #setOnErrorListener(OnErrorListener)}setOnErrorListener).
+ * In order to receive the respective callback associated with these listeners,
+ * applications are required to create MediaRecorder objects on threads with a
+ * Looper running (the main UI thread by default already has a Looper running).
+ *
+ * <p><strong>Note:</strong> Currently, MediaRecorder does not work on the emulator.
+ *
+ * <div class="special reference">
+ * <h3>Developer Guides</h3>
+ * <p>For more information about how to use MediaRecorder for recording video, read the
+ * <a href="{@docRoot}guide/topics/media/camera.html#capture-video">Camera</a> developer guide.
+ * For more information about how to use MediaRecorder for recording sound, read the
+ * <a href="{@docRoot}guide/topics/media/audio-capture.html">Audio Capture</a> developer guide.</p>
+ * </div>
+ */
+public class MediaRecorder
+{
+    static {
+        System.loadLibrary("media_jni");
+        native_init();
+    }
+    private final static String TAG = "MediaRecorder";
+
+    // The two fields below are accessed by native methods
+    @SuppressWarnings("unused")
+    private long mNativeContext;
+
+    @SuppressWarnings("unused")
+    private Surface mSurface;
+
+    private String mPath;
+    private FileDescriptor mFd;
+    private File mFile;
+    private EventHandler mEventHandler;
+    private OnErrorListener mOnErrorListener;
+    private OnInfoListener mOnInfoListener;
+
+    /**
+     * Default constructor.
+     */
+    public MediaRecorder() {
+
+        Looper looper;
+        if ((looper = Looper.myLooper()) != null) {
+            mEventHandler = new EventHandler(this, looper);
+        } else if ((looper = Looper.getMainLooper()) != null) {
+            mEventHandler = new EventHandler(this, looper);
+        } else {
+            mEventHandler = null;
+        }
+
+        String packageName = ActivityThread.currentPackageName();
+        /* Native setup requires a weak reference to our object.
+         * It's easier to create it here than in C++.
+         */
+        native_setup(new WeakReference<MediaRecorder>(this), packageName,
+                ActivityThread.currentOpPackageName());
+    }
+
+    /**
+     * Sets a {@link android.hardware.Camera} to use for recording.
+     *
+     * <p>Use this function to switch quickly between preview and capture mode without a teardown of
+     * the camera object. {@link android.hardware.Camera#unlock()} should be called before
+     * this. Must call before {@link #prepare}.</p>
+     *
+     * @param c the Camera to use for recording
+     * @deprecated Use {@link #getSurface} and the {@link android.hardware.camera2} API instead.
+     */
+    @Deprecated
+    public native void setCamera(Camera c);
+
+    /**
+     * Gets the surface to record from when using SURFACE video source.
+     *
+     * <p> May only be called after {@link #prepare}. Frames rendered to the Surface before
+     * {@link #start} will be discarded.</p>
+     *
+     * @throws IllegalStateException if it is called before {@link #prepare}, after
+     * {@link #stop}, or is called when VideoSource is not set to SURFACE.
+     * @see android.media.MediaRecorder.VideoSource
+     */
+    public native Surface getSurface();
+
+    /**
+     * Configures the recorder to use a persistent surface when using SURFACE video source.
+     * <p> May only be called before {@link #prepare}. If called, {@link #getSurface} should
+     * not be used and will throw IllegalStateException. Frames rendered to the Surface
+     * before {@link #start} will be discarded.</p>
+
+     * @param surface a persistent input surface created by
+     *           {@link MediaCodec#createPersistentInputSurface}
+     * @throws IllegalStateException if it is called after {@link #prepare} and before
+     * {@link #stop}.
+     * @throws IllegalArgumentException if the surface was not created by
+     *           {@link MediaCodec#createPersistentInputSurface}.
+     * @see MediaCodec#createPersistentInputSurface
+     * @see MediaRecorder.VideoSource
+     */
+    public void setInputSurface(@NonNull Surface surface) {
+        if (!(surface instanceof MediaCodec.PersistentSurface)) {
+            throw new IllegalArgumentException("not a PersistentSurface");
+        }
+        native_setInputSurface(surface);
+    }
+
+    private native final void native_setInputSurface(@NonNull Surface surface);
+
+    /**
+     * Sets a Surface to show a preview of recorded media (video). Calls this
+     * before prepare() to make sure that the desirable preview display is
+     * set. If {@link #setCamera(Camera)} is used and the surface has been
+     * already set to the camera, application do not need to call this. If
+     * this is called with non-null surface, the preview surface of the camera
+     * will be replaced by the new surface. If this method is called with null
+     * surface or not called at all, media recorder will not change the preview
+     * surface of the camera.
+     *
+     * @param sv the Surface to use for the preview
+     * @see android.hardware.Camera#setPreviewDisplay(android.view.SurfaceHolder)
+     */
+    public void setPreviewDisplay(Surface sv) {
+        mSurface = sv;
+    }
+
+    /**
+     * Defines the audio source.
+     * An audio source defines both a default physical source of audio signal, and a recording
+     * configuration. These constants are for instance used
+     * in {@link MediaRecorder#setAudioSource(int)} or
+     * {@link AudioRecord.Builder#setAudioSource(int)}.
+     */
+    public final class AudioSource {
+
+        private AudioSource() {}
+
+        /** @hide */
+        public final static int AUDIO_SOURCE_INVALID = -1;
+
+      /* Do not change these values without updating their counterparts
+       * in system/media/audio/include/system/audio.h!
+       */
+
+        /** Default audio source **/
+        public static final int DEFAULT = 0;
+
+        /** Microphone audio source */
+        public static final int MIC = 1;
+
+        /** Voice call uplink (Tx) audio source.
+         * <p>
+         * Capturing from <code>VOICE_UPLINK</code> source requires the
+         * {@link android.Manifest.permission#CAPTURE_AUDIO_OUTPUT} permission.
+         * This permission is reserved for use by system components and is not available to
+         * third-party applications.
+         * </p>
+         */
+        public static final int VOICE_UPLINK = 2;
+
+        /** Voice call downlink (Rx) audio source.
+         * <p>
+         * Capturing from <code>VOICE_DOWNLINK</code> source requires the
+         * {@link android.Manifest.permission#CAPTURE_AUDIO_OUTPUT} permission.
+         * This permission is reserved for use by system components and is not available to
+         * third-party applications.
+         * </p>
+         */
+        public static final int VOICE_DOWNLINK = 3;
+
+        /** Voice call uplink + downlink audio source
+         * <p>
+         * Capturing from <code>VOICE_CALL</code> source requires the
+         * {@link android.Manifest.permission#CAPTURE_AUDIO_OUTPUT} permission.
+         * This permission is reserved for use by system components and is not available to
+         * third-party applications.
+         * </p>
+         */
+        public static final int VOICE_CALL = 4;
+
+        /** Microphone audio source tuned for video recording, with the same orientation
+         *  as the camera if available. */
+        public static final int CAMCORDER = 5;
+
+        /** Microphone audio source tuned for voice recognition. */
+        public static final int VOICE_RECOGNITION = 6;
+
+        /** Microphone audio source tuned for voice communications such as VoIP. It
+         *  will for instance take advantage of echo cancellation or automatic gain control
+         *  if available.
+         */
+        public static final int VOICE_COMMUNICATION = 7;
+
+        /**
+         * Audio source for a submix of audio streams to be presented remotely.
+         * <p>
+         * An application can use this audio source to capture a mix of audio streams
+         * that should be transmitted to a remote receiver such as a Wifi display.
+         * While recording is active, these audio streams are redirected to the remote
+         * submix instead of being played on the device speaker or headset.
+         * </p><p>
+         * Certain streams are excluded from the remote submix, including
+         * {@link AudioManager#STREAM_RING}, {@link AudioManager#STREAM_ALARM},
+         * and {@link AudioManager#STREAM_NOTIFICATION}.  These streams will continue
+         * to be presented locally as usual.
+         * </p><p>
+         * Capturing the remote submix audio requires the
+         * {@link android.Manifest.permission#CAPTURE_AUDIO_OUTPUT} permission.
+         * This permission is reserved for use by system components and is not available to
+         * third-party applications.
+         * </p>
+         */
+        public static final int REMOTE_SUBMIX = 8;
+
+        /** Microphone audio source tuned for unprocessed (raw) sound if available, behaves like
+         *  {@link #DEFAULT} otherwise. */
+        public static final int UNPROCESSED = 9;
+
+        /**
+         * Audio source for capturing broadcast radio tuner output.
+         * @hide
+         */
+        @SystemApi
+        public static final int RADIO_TUNER = 1998;
+
+        /**
+         * Audio source for preemptible, low-priority software hotword detection
+         * It presents the same gain and pre processing tuning as {@link #VOICE_RECOGNITION}.
+         * <p>
+         * An application should use this audio source when it wishes to do
+         * always-on software hotword detection, while gracefully giving in to any other application
+         * that might want to read from the microphone.
+         * </p>
+         * This is a hidden audio source.
+         * @hide
+         */
+        @SystemApi
+        public static final int HOTWORD = 1999;
+    }
+
+    // TODO make AudioSource static (API change) and move this method inside the AudioSource class
+    /**
+     * @hide
+     * @param source An audio source to test
+     * @return true if the source is only visible to system components
+     */
+    public static boolean isSystemOnlyAudioSource(int source) {
+        switch(source) {
+        case AudioSource.DEFAULT:
+        case AudioSource.MIC:
+        case AudioSource.VOICE_UPLINK:
+        case AudioSource.VOICE_DOWNLINK:
+        case AudioSource.VOICE_CALL:
+        case AudioSource.CAMCORDER:
+        case AudioSource.VOICE_RECOGNITION:
+        case AudioSource.VOICE_COMMUNICATION:
+        //case REMOTE_SUBMIX:  considered "system" as it requires system permissions
+        case AudioSource.UNPROCESSED:
+            return false;
+        default:
+            return true;
+        }
+    }
+
+    /** @hide */
+    public static final String toLogFriendlyAudioSource(int source) {
+        switch(source) {
+        case AudioSource.DEFAULT:
+            return "DEFAULT";
+        case AudioSource.MIC:
+            return "MIC";
+        case AudioSource.VOICE_UPLINK:
+            return "VOICE_UPLINK";
+        case AudioSource.VOICE_DOWNLINK:
+            return "VOICE_DOWNLINK";
+        case AudioSource.VOICE_CALL:
+            return "VOICE_CALL";
+        case AudioSource.CAMCORDER:
+            return "CAMCORDER";
+        case AudioSource.VOICE_RECOGNITION:
+            return "VOICE_RECOGNITION";
+        case AudioSource.VOICE_COMMUNICATION:
+            return "VOICE_COMMUNICATION";
+        case AudioSource.REMOTE_SUBMIX:
+            return "REMOTE_SUBMIX";
+        case AudioSource.UNPROCESSED:
+            return "UNPROCESSED";
+        case AudioSource.RADIO_TUNER:
+            return "RADIO_TUNER";
+        case AudioSource.HOTWORD:
+            return "HOTWORD";
+        case AudioSource.AUDIO_SOURCE_INVALID:
+            return "AUDIO_SOURCE_INVALID";
+        default:
+            return "unknown source " + source;
+        }
+    }
+
+    /**
+     * Defines the video source. These constants are used with
+     * {@link MediaRecorder#setVideoSource(int)}.
+     */
+    public final class VideoSource {
+      /* Do not change these values without updating their counterparts
+       * in include/media/mediarecorder.h!
+       */
+        private VideoSource() {}
+        public static final int DEFAULT = 0;
+        /** Camera video source
+         * <p>
+         * Using the {@link android.hardware.Camera} API as video source.
+         * </p>
+         */
+        public static final int CAMERA = 1;
+        /** Surface video source
+         * <p>
+         * Using a Surface as video source.
+         * </p><p>
+         * This flag must be used when recording from an
+         * {@link android.hardware.camera2} API source.
+         * </p><p>
+         * When using this video source type, use {@link MediaRecorder#getSurface()}
+         * to retrieve the surface created by MediaRecorder.
+         */
+        public static final int SURFACE = 2;
+    }
+
+    /**
+     * Defines the output format. These constants are used with
+     * {@link MediaRecorder#setOutputFormat(int)}.
+     */
+    public final class OutputFormat {
+      /* Do not change these values without updating their counterparts
+       * in include/media/mediarecorder.h!
+       */
+        private OutputFormat() {}
+        public static final int DEFAULT = 0;
+        /** 3GPP media file format*/
+        public static final int THREE_GPP = 1;
+        /** MPEG4 media file format*/
+        public static final int MPEG_4 = 2;
+
+        /** The following formats are audio only .aac or .amr formats */
+
+        /**
+         * AMR NB file format
+         * @deprecated  Deprecated in favor of MediaRecorder.OutputFormat.AMR_NB
+         */
+        public static final int RAW_AMR = 3;
+
+        /** AMR NB file format */
+        public static final int AMR_NB = 3;
+
+        /** AMR WB file format */
+        public static final int AMR_WB = 4;
+
+        /** @hide AAC ADIF file format */
+        public static final int AAC_ADIF = 5;
+
+        /** AAC ADTS file format */
+        public static final int AAC_ADTS = 6;
+
+        /** @hide Stream over a socket, limited to a single stream */
+        public static final int OUTPUT_FORMAT_RTP_AVP = 7;
+
+        /** H.264/AAC data encapsulated in MPEG2/TS */
+        public static final int MPEG_2_TS = 8;
+
+        /** VP8/VORBIS data in a WEBM container */
+        public static final int WEBM = 9;
+    };
+
+    /**
+     * Defines the audio encoding. These constants are used with
+     * {@link MediaRecorder#setAudioEncoder(int)}.
+     */
+    public final class AudioEncoder {
+      /* Do not change these values without updating their counterparts
+       * in include/media/mediarecorder.h!
+       */
+        private AudioEncoder() {}
+        public static final int DEFAULT = 0;
+        /** AMR (Narrowband) audio codec */
+        public static final int AMR_NB = 1;
+        /** AMR (Wideband) audio codec */
+        public static final int AMR_WB = 2;
+        /** AAC Low Complexity (AAC-LC) audio codec */
+        public static final int AAC = 3;
+        /** High Efficiency AAC (HE-AAC) audio codec */
+        public static final int HE_AAC = 4;
+        /** Enhanced Low Delay AAC (AAC-ELD) audio codec */
+        public static final int AAC_ELD = 5;
+        /** Ogg Vorbis audio codec */
+        public static final int VORBIS = 6;
+    }
+
+    /**
+     * Defines the video encoding. These constants are used with
+     * {@link MediaRecorder#setVideoEncoder(int)}.
+     */
+    public final class VideoEncoder {
+      /* Do not change these values without updating their counterparts
+       * in include/media/mediarecorder.h!
+       */
+        private VideoEncoder() {}
+        public static final int DEFAULT = 0;
+        public static final int H263 = 1;
+        public static final int H264 = 2;
+        public static final int MPEG_4_SP = 3;
+        public static final int VP8 = 4;
+        public static final int HEVC = 5;
+    }
+
+    /**
+     * Sets the audio source to be used for recording. If this method is not
+     * called, the output file will not contain an audio track. The source needs
+     * to be specified before setting recording-parameters or encoders. Call
+     * this only before setOutputFormat().
+     *
+     * @param audio_source the audio source to use
+     * @throws IllegalStateException if it is called after setOutputFormat()
+     * @see android.media.MediaRecorder.AudioSource
+     */
+    public native void setAudioSource(int audio_source)
+            throws IllegalStateException;
+
+    /**
+     * Gets the maximum value for audio sources.
+     * @see android.media.MediaRecorder.AudioSource
+     */
+    public static final int getAudioSourceMax() {
+        return AudioSource.UNPROCESSED;
+    }
+
+    /**
+     * Sets the video source to be used for recording. If this method is not
+     * called, the output file will not contain an video track. The source needs
+     * to be specified before setting recording-parameters or encoders. Call
+     * this only before setOutputFormat().
+     *
+     * @param video_source the video source to use
+     * @throws IllegalStateException if it is called after setOutputFormat()
+     * @see android.media.MediaRecorder.VideoSource
+     */
+    public native void setVideoSource(int video_source)
+            throws IllegalStateException;
+
+    /**
+     * Uses the settings from a CamcorderProfile object for recording. This method should
+     * be called after the video AND audio sources are set, and before setOutputFile().
+     * If a time lapse CamcorderProfile is used, audio related source or recording
+     * parameters are ignored.
+     *
+     * @param profile the CamcorderProfile to use
+     * @see android.media.CamcorderProfile
+     */
+    public void setProfile(CamcorderProfile profile) {
+        setOutputFormat(profile.fileFormat);
+        setVideoFrameRate(profile.videoFrameRate);
+        setVideoSize(profile.videoFrameWidth, profile.videoFrameHeight);
+        setVideoEncodingBitRate(profile.videoBitRate);
+        setVideoEncoder(profile.videoCodec);
+        if (profile.quality >= CamcorderProfile.QUALITY_TIME_LAPSE_LOW &&
+             profile.quality <= CamcorderProfile.QUALITY_TIME_LAPSE_QVGA) {
+            // Nothing needs to be done. Call to setCaptureRate() enables
+            // time lapse video recording.
+        } else {
+            setAudioEncodingBitRate(profile.audioBitRate);
+            setAudioChannels(profile.audioChannels);
+            setAudioSamplingRate(profile.audioSampleRate);
+            setAudioEncoder(profile.audioCodec);
+        }
+    }
+
+    /**
+     * Set video frame capture rate. This can be used to set a different video frame capture
+     * rate than the recorded video's playback rate. This method also sets the recording mode
+     * to time lapse. In time lapse video recording, only video is recorded. Audio related
+     * parameters are ignored when a time lapse recording session starts, if an application
+     * sets them.
+     *
+     * @param fps Rate at which frames should be captured in frames per second.
+     * The fps can go as low as desired. However the fastest fps will be limited by the hardware.
+     * For resolutions that can be captured by the video camera, the fastest fps can be computed using
+     * {@link android.hardware.Camera.Parameters#getPreviewFpsRange(int[])}. For higher
+     * resolutions the fastest fps may be more restrictive.
+     * Note that the recorder cannot guarantee that frames will be captured at the
+     * given rate due to camera/encoder limitations. However it tries to be as close as
+     * possible.
+     */
+    public void setCaptureRate(double fps) {
+        // Make sure that time lapse is enabled when this method is called.
+        setParameter("time-lapse-enable=1");
+        setParameter("time-lapse-fps=" + fps);
+    }
+
+    /**
+     * Sets the orientation hint for output video playback.
+     * This method should be called before prepare(). This method will not
+     * trigger the source video frame to rotate during video recording, but to
+     * add a composition matrix containing the rotation angle in the output
+     * video if the output format is OutputFormat.THREE_GPP or
+     * OutputFormat.MPEG_4 so that a video player can choose the proper
+     * orientation for playback. Note that some video players may choose
+     * to ignore the compostion matrix in a video during playback.
+     *
+     * @param degrees the angle to be rotated clockwise in degrees.
+     * The supported angles are 0, 90, 180, and 270 degrees.
+     * @throws IllegalArgumentException if the angle is not supported.
+     *
+     */
+    public void setOrientationHint(int degrees) {
+        if (degrees != 0   &&
+            degrees != 90  &&
+            degrees != 180 &&
+            degrees != 270) {
+            throw new IllegalArgumentException("Unsupported angle: " + degrees);
+        }
+        setParameter("video-param-rotation-angle-degrees=" + degrees);
+    }
+
+    /**
+     * Set and store the geodata (latitude and longitude) in the output file.
+     * This method should be called before prepare(). The geodata is
+     * stored in udta box if the output format is OutputFormat.THREE_GPP
+     * or OutputFormat.MPEG_4, and is ignored for other output formats.
+     * The geodata is stored according to ISO-6709 standard.
+     *
+     * @param latitude latitude in degrees. Its value must be in the
+     * range [-90, 90].
+     * @param longitude longitude in degrees. Its value must be in the
+     * range [-180, 180].
+     *
+     * @throws IllegalArgumentException if the given latitude or
+     * longitude is out of range.
+     *
+     */
+    public void setLocation(float latitude, float longitude) {
+        int latitudex10000  = (int) (latitude * 10000 + 0.5);
+        int longitudex10000 = (int) (longitude * 10000 + 0.5);
+
+        if (latitudex10000 > 900000 || latitudex10000 < -900000) {
+            String msg = "Latitude: " + latitude + " out of range.";
+            throw new IllegalArgumentException(msg);
+        }
+        if (longitudex10000 > 1800000 || longitudex10000 < -1800000) {
+            String msg = "Longitude: " + longitude + " out of range";
+            throw new IllegalArgumentException(msg);
+        }
+
+        setParameter("param-geotag-latitude=" + latitudex10000);
+        setParameter("param-geotag-longitude=" + longitudex10000);
+    }
+
+    /**
+     * Sets the format of the output file produced during recording. Call this
+     * after setAudioSource()/setVideoSource() but before prepare().
+     *
+     * <p>It is recommended to always use 3GP format when using the H.263
+     * video encoder and AMR audio encoder. Using an MPEG-4 container format
+     * may confuse some desktop players.</p>
+     *
+     * @param output_format the output format to use. The output format
+     * needs to be specified before setting recording-parameters or encoders.
+     * @throws IllegalStateException if it is called after prepare() or before
+     * setAudioSource()/setVideoSource().
+     * @see android.media.MediaRecorder.OutputFormat
+     */
+    public native void setOutputFormat(int output_format)
+            throws IllegalStateException;
+
+    /**
+     * Sets the width and height of the video to be captured.  Must be called
+     * after setVideoSource(). Call this after setOutFormat() but before
+     * prepare().
+     *
+     * @param width the width of the video to be captured
+     * @param height the height of the video to be captured
+     * @throws IllegalStateException if it is called after
+     * prepare() or before setOutputFormat()
+     */
+    public native void setVideoSize(int width, int height)
+            throws IllegalStateException;
+
+    /**
+     * Sets the frame rate of the video to be captured.  Must be called
+     * after setVideoSource(). Call this after setOutFormat() but before
+     * prepare().
+     *
+     * @param rate the number of frames per second of video to capture
+     * @throws IllegalStateException if it is called after
+     * prepare() or before setOutputFormat().
+     *
+     * NOTE: On some devices that have auto-frame rate, this sets the
+     * maximum frame rate, not a constant frame rate. Actual frame rate
+     * will vary according to lighting conditions.
+     */
+    public native void setVideoFrameRate(int rate) throws IllegalStateException;
+
+    /**
+     * Sets the maximum duration (in ms) of the recording session.
+     * Call this after setOutFormat() but before prepare().
+     * After recording reaches the specified duration, a notification
+     * will be sent to the {@link android.media.MediaRecorder.OnInfoListener}
+     * with a "what" code of {@link #MEDIA_RECORDER_INFO_MAX_DURATION_REACHED}
+     * and recording will be stopped. Stopping happens asynchronously, there
+     * is no guarantee that the recorder will have stopped by the time the
+     * listener is notified.
+     *
+     * @param max_duration_ms the maximum duration in ms (if zero or negative, disables the duration limit)
+     *
+     */
+    public native void setMaxDuration(int max_duration_ms) throws IllegalArgumentException;
+
+    /**
+     * Sets the maximum filesize (in bytes) of the recording session.
+     * Call this after setOutFormat() but before prepare().
+     * After recording reaches the specified filesize, a notification
+     * will be sent to the {@link android.media.MediaRecorder.OnInfoListener}
+     * with a "what" code of {@link #MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED}
+     * and recording will be stopped. Stopping happens asynchronously, there
+     * is no guarantee that the recorder will have stopped by the time the
+     * listener is notified.
+     *
+     * @param max_filesize_bytes the maximum filesize in bytes (if zero or negative, disables the limit)
+     *
+     */
+    public native void setMaxFileSize(long max_filesize_bytes) throws IllegalArgumentException;
+
+    /**
+     * Sets the audio encoder to be used for recording. If this method is not
+     * called, the output file will not contain an audio track. Call this after
+     * setOutputFormat() but before prepare().
+     *
+     * @param audio_encoder the audio encoder to use.
+     * @throws IllegalStateException if it is called before
+     * setOutputFormat() or after prepare().
+     * @see android.media.MediaRecorder.AudioEncoder
+     */
+    public native void setAudioEncoder(int audio_encoder)
+            throws IllegalStateException;
+
+    /**
+     * Sets the video encoder to be used for recording. If this method is not
+     * called, the output file will not contain an video track. Call this after
+     * setOutputFormat() and before prepare().
+     *
+     * @param video_encoder the video encoder to use.
+     * @throws IllegalStateException if it is called before
+     * setOutputFormat() or after prepare()
+     * @see android.media.MediaRecorder.VideoEncoder
+     */
+    public native void setVideoEncoder(int video_encoder)
+            throws IllegalStateException;
+
+    /**
+     * Sets the audio sampling rate for recording. Call this method before prepare().
+     * Prepare() may perform additional checks on the parameter to make sure whether
+     * the specified audio sampling rate is applicable. The sampling rate really depends
+     * on the format for the audio recording, as well as the capabilities of the platform.
+     * For instance, the sampling rate supported by AAC audio coding standard ranges
+     * from 8 to 96 kHz, the sampling rate supported by AMRNB is 8kHz, and the sampling
+     * rate supported by AMRWB is 16kHz. Please consult with the related audio coding
+     * standard for the supported audio sampling rate.
+     *
+     * @param samplingRate the sampling rate for audio in samples per second.
+     */
+    public void setAudioSamplingRate(int samplingRate) {
+        if (samplingRate <= 0) {
+            throw new IllegalArgumentException("Audio sampling rate is not positive");
+        }
+        setParameter("audio-param-sampling-rate=" + samplingRate);
+    }
+
+    /**
+     * Sets the number of audio channels for recording. Call this method before prepare().
+     * Prepare() may perform additional checks on the parameter to make sure whether the
+     * specified number of audio channels are applicable.
+     *
+     * @param numChannels the number of audio channels. Usually it is either 1 (mono) or 2
+     * (stereo).
+     */
+    public void setAudioChannels(int numChannels) {
+        if (numChannels <= 0) {
+            throw new IllegalArgumentException("Number of channels is not positive");
+        }
+        setParameter("audio-param-number-of-channels=" + numChannels);
+    }
+
+    /**
+     * Sets the audio encoding bit rate for recording. Call this method before prepare().
+     * Prepare() may perform additional checks on the parameter to make sure whether the
+     * specified bit rate is applicable, and sometimes the passed bitRate will be clipped
+     * internally to ensure the audio recording can proceed smoothly based on the
+     * capabilities of the platform.
+     *
+     * @param bitRate the audio encoding bit rate in bits per second.
+     */
+    public void setAudioEncodingBitRate(int bitRate) {
+        if (bitRate <= 0) {
+            throw new IllegalArgumentException("Audio encoding bit rate is not positive");
+        }
+        setParameter("audio-param-encoding-bitrate=" + bitRate);
+    }
+
+    /**
+     * Sets the video encoding bit rate for recording. Call this method before prepare().
+     * Prepare() may perform additional checks on the parameter to make sure whether the
+     * specified bit rate is applicable, and sometimes the passed bitRate will be
+     * clipped internally to ensure the video recording can proceed smoothly based on
+     * the capabilities of the platform.
+     *
+     * @param bitRate the video encoding bit rate in bits per second.
+     */
+    public void setVideoEncodingBitRate(int bitRate) {
+        if (bitRate <= 0) {
+            throw new IllegalArgumentException("Video encoding bit rate is not positive");
+        }
+        setParameter("video-param-encoding-bitrate=" + bitRate);
+    }
+
+    /**
+     * Sets the desired video encoding profile and level for recording. The profile and level
+     * must be valid for the video encoder set by {@link #setVideoEncoder}. This method can
+     * called before or after {@link #setVideoEncoder} but it must be called before {@link #prepare}.
+     * {@code prepare()} may perform additional checks on the parameter to make sure that the specified
+     * profile and level are applicable, and sometimes the passed profile or level will be
+     * discarded due to codec capablity or to ensure the video recording can proceed smoothly
+     * based on the capabilities of the platform. <br>Application can also use the
+     * {@link MediaCodecInfo.CodecCapabilities#profileLevels} to query applicable combination of profile
+     * and level for the corresponding format. Note that the requested profile/level may not be supported by
+     * the codec that is actually being used by this MediaRecorder instance.
+     * @param profile declared in {@link MediaCodecInfo.CodecProfileLevel}.
+     * @param level declared in {@link MediaCodecInfo.CodecProfileLevel}.
+     * @throws IllegalArgumentException when an invalid profile or level value is used.
+     */
+    public void setVideoEncodingProfileLevel(int profile, int level) {
+        if (profile <= 0)  {
+            throw new IllegalArgumentException("Video encoding profile is not positive");
+        }
+        if (level <= 0)  {
+            throw new IllegalArgumentException("Video encoding level is not positive");
+        }
+        setParameter("video-param-encoder-profile=" + profile);
+        setParameter("video-param-encoder-level=" + level);
+    }
+
+    /**
+     * Currently not implemented. It does nothing.
+     * @deprecated Time lapse mode video recording using camera still image capture
+     * is not desirable, and will not be supported.
+     * @hide
+     */
+    public void setAuxiliaryOutputFile(FileDescriptor fd)
+    {
+        Log.w(TAG, "setAuxiliaryOutputFile(FileDescriptor) is no longer supported.");
+    }
+
+    /**
+     * Currently not implemented. It does nothing.
+     * @deprecated Time lapse mode video recording using camera still image capture
+     * is not desirable, and will not be supported.
+     * @hide
+     */
+    public void setAuxiliaryOutputFile(String path)
+    {
+        Log.w(TAG, "setAuxiliaryOutputFile(String) is no longer supported.");
+    }
+
+    /**
+     * Pass in the file descriptor of the file to be written. Call this after
+     * setOutputFormat() but before prepare().
+     *
+     * @param fd an open file descriptor to be written into.
+     * @throws IllegalStateException if it is called before
+     * setOutputFormat() or after prepare()
+     */
+    public void setOutputFile(FileDescriptor fd) throws IllegalStateException
+    {
+        mPath = null;
+        mFile = null;
+        mFd = fd;
+    }
+
+    /**
+     * Pass in the file object to be written. Call this after setOutputFormat() but before prepare().
+     * File should be seekable. After setting the next output file, application should not use the
+     * file until {@link #stop}. Application is responsible for cleaning up unused files after
+     * {@link #stop} is called.
+     *
+     * @param file the file object to be written into.
+     */
+    public void setOutputFile(File file)
+    {
+        mPath = null;
+        mFd = null;
+        mFile = file;
+    }
+
+    /**
+     * Sets the next output file descriptor to be used when the maximum filesize is reached
+     * on the prior output {@link #setOutputFile} or {@link #setNextOutputFile}). File descriptor
+     * must be seekable and writable. After setting the next output file, application should not
+     * use the file referenced by this file descriptor until {@link #stop}. It is the application's
+     * responsibility to close the file descriptor. It is safe to do so as soon as this call returns.
+     * Application must call this after receiving on the
+     * {@link android.media.MediaRecorder.OnInfoListener} a "what" code of
+     * {@link #MEDIA_RECORDER_INFO_MAX_FILESIZE_APPROACHING} and before receiving a "what" code of
+     * {@link #MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED}. The file is not used until switching to
+     * that output. Application will receive{@link #MEDIA_RECORDER_INFO_NEXT_OUTPUT_FILE_STARTED}
+     * when the next output file is used. Application will not be able to set a new output file if
+     * the previous one has not been used. Application is responsible for cleaning up unused files
+     * after {@link #stop} is called.
+     *
+     * @param fd an open file descriptor to be written into.
+     * @throws IllegalStateException if it is called before prepare().
+     * @throws IOException if setNextOutputFile fails otherwise.
+     */
+    public void setNextOutputFile(FileDescriptor fd) throws IOException
+    {
+        _setNextOutputFile(fd);
+    }
+
+    /**
+     * Sets the path of the output file to be produced. Call this after
+     * setOutputFormat() but before prepare().
+     *
+     * @param path The pathname to use.
+     * @throws IllegalStateException if it is called before
+     * setOutputFormat() or after prepare()
+     */
+    public void setOutputFile(String path) throws IllegalStateException
+    {
+        mFd = null;
+        mFile = null;
+        mPath = path;
+    }
+
+    /**
+     * Sets the next output file to be used when the maximum filesize is reached on the prior
+     * output {@link #setOutputFile} or {@link #setNextOutputFile}). File should be seekable.
+     * After setting the next output file, application should not use the file until {@link #stop}.
+     * Application must call this after receiving on the
+     * {@link android.media.MediaRecorder.OnInfoListener} a "what" code of
+     * {@link #MEDIA_RECORDER_INFO_MAX_FILESIZE_APPROACHING} and before receiving a "what" code of
+     * {@link #MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED}. The file is not used until switching to
+     * that output. Application will receive {@link #MEDIA_RECORDER_INFO_NEXT_OUTPUT_FILE_STARTED}
+     * when the next output file is used. Application will not be able to set a new output file if
+     * the previous one has not been used. Application is responsible for cleaning up unused files
+     * after {@link #stop} is called.
+     *
+     * @param  file The file to use.
+     * @throws IllegalStateException if it is called before prepare().
+     * @throws IOException if setNextOutputFile fails otherwise.
+     */
+    public void setNextOutputFile(File file) throws IOException
+    {
+        RandomAccessFile f = new RandomAccessFile(file, "rws");
+        try {
+            _setNextOutputFile(f.getFD());
+        } finally {
+            f.close();
+        }
+    }
+
+    // native implementation
+    private native void _setOutputFile(FileDescriptor fd) throws IllegalStateException, IOException;
+    private native void _setNextOutputFile(FileDescriptor fd) throws IllegalStateException, IOException;
+    private native void _prepare() throws IllegalStateException, IOException;
+
+    /**
+     * Prepares the recorder to begin capturing and encoding data. This method
+     * must be called after setting up the desired audio and video sources,
+     * encoders, file format, etc., but before start().
+     *
+     * @throws IllegalStateException if it is called after
+     * start() or before setOutputFormat().
+     * @throws IOException if prepare fails otherwise.
+     */
+    public void prepare() throws IllegalStateException, IOException
+    {
+        if (mPath != null) {
+            RandomAccessFile file = new RandomAccessFile(mPath, "rws");
+            try {
+                _setOutputFile(file.getFD());
+            } finally {
+                file.close();
+            }
+        } else if (mFd != null) {
+            _setOutputFile(mFd);
+        } else if (mFile != null) {
+            RandomAccessFile file = new RandomAccessFile(mFile, "rws");
+            try {
+                _setOutputFile(file.getFD());
+            } finally {
+                file.close();
+            }
+        } else {
+            throw new IOException("No valid output file");
+        }
+
+        _prepare();
+    }
+
+    /**
+     * Begins capturing and encoding data to the file specified with
+     * setOutputFile(). Call this after prepare().
+     *
+     * <p>Since API level 13, if applications set a camera via
+     * {@link #setCamera(Camera)}, the apps can use the camera after this method
+     * call. The apps do not need to lock the camera again. However, if this
+     * method fails, the apps should still lock the camera back. The apps should
+     * not start another recording session during recording.
+     *
+     * @throws IllegalStateException if it is called before
+     * prepare() or when the camera is already in use by another app.
+     */
+    public native void start() throws IllegalStateException;
+
+    /**
+     * Stops recording. Call this after start(). Once recording is stopped,
+     * you will have to configure it again as if it has just been constructed.
+     * Note that a RuntimeException is intentionally thrown to the
+     * application, if no valid audio/video data has been received when stop()
+     * is called. This happens if stop() is called immediately after
+     * start(). The failure lets the application take action accordingly to
+     * clean up the output file (delete the output file, for instance), since
+     * the output file is not properly constructed when this happens.
+     *
+     * @throws IllegalStateException if it is called before start()
+     */
+    public native void stop() throws IllegalStateException;
+
+    /**
+     * Pauses recording. Call this after start(). You may resume recording
+     * with resume() without reconfiguration, as opposed to stop(). It does
+     * nothing if the recording is already paused.
+     *
+     * When the recording is paused and resumed, the resulting output would
+     * be as if nothing happend during paused period, immediately switching
+     * to the resumed scene.
+     *
+     * @throws IllegalStateException if it is called before start() or after
+     * stop()
+     */
+    public native void pause() throws IllegalStateException;
+
+    /**
+     * Resumes recording. Call this after start(). It does nothing if the
+     * recording is not paused.
+     *
+     * @throws IllegalStateException if it is called before start() or after
+     * stop()
+     * @see android.media.MediaRecorder#pause
+     */
+    public native void resume() throws IllegalStateException;
+
+    /**
+     * Restarts the MediaRecorder to its idle state. After calling
+     * this method, you will have to configure it again as if it had just been
+     * constructed.
+     */
+    public void reset() {
+        native_reset();
+
+        // make sure none of the listeners get called anymore
+        mEventHandler.removeCallbacksAndMessages(null);
+    }
+
+    private native void native_reset();
+
+    /**
+     * Returns the maximum absolute amplitude that was sampled since the last
+     * call to this method. Call this only after the setAudioSource().
+     *
+     * @return the maximum absolute amplitude measured since the last call, or
+     * 0 when called for the first time
+     * @throws IllegalStateException if it is called before
+     * the audio source has been set.
+     */
+    public native int getMaxAmplitude() throws IllegalStateException;
+
+    /* Do not change this value without updating its counterpart
+     * in include/media/mediarecorder.h or mediaplayer.h!
+     */
+    /** Unspecified media recorder error.
+     * @see android.media.MediaRecorder.OnErrorListener
+     */
+    public static final int MEDIA_RECORDER_ERROR_UNKNOWN = 1;
+    /** Media server died. In this case, the application must release the
+     * MediaRecorder object and instantiate a new one.
+     * @see android.media.MediaRecorder.OnErrorListener
+     */
+    public static final int MEDIA_ERROR_SERVER_DIED = 100;
+
+    /**
+     * Interface definition for a callback to be invoked when an error
+     * occurs while recording.
+     */
+    public interface OnErrorListener
+    {
+        /**
+         * Called when an error occurs while recording.
+         *
+         * @param mr the MediaRecorder that encountered the error
+         * @param what    the type of error that has occurred:
+         * <ul>
+         * <li>{@link #MEDIA_RECORDER_ERROR_UNKNOWN}
+         * <li>{@link #MEDIA_ERROR_SERVER_DIED}
+         * </ul>
+         * @param extra   an extra code, specific to the error type
+         */
+        void onError(MediaRecorder mr, int what, int extra);
+    }
+
+    /**
+     * Register a callback to be invoked when an error occurs while
+     * recording.
+     *
+     * @param l the callback that will be run
+     */
+    public void setOnErrorListener(OnErrorListener l)
+    {
+        mOnErrorListener = l;
+    }
+
+    /* Do not change these values without updating their counterparts
+     * in include/media/mediarecorder.h!
+     */
+    /** Unspecified media recorder info.
+     * @see android.media.MediaRecorder.OnInfoListener
+     */
+    public static final int MEDIA_RECORDER_INFO_UNKNOWN              = 1;
+    /** A maximum duration had been setup and has now been reached.
+     * @see android.media.MediaRecorder.OnInfoListener
+     */
+    public static final int MEDIA_RECORDER_INFO_MAX_DURATION_REACHED = 800;
+    /** A maximum filesize had been setup and has now been reached.
+     * Note: This event will not be sent if application already set
+     * next output file through {@link #setNextOutputFile}.
+     * @see android.media.MediaRecorder.OnInfoListener
+     */
+    public static final int MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED = 801;
+    /** A maximum filesize had been setup and current recorded file size
+     * has reached 90% of the limit. This is sent once per file upon
+     * reaching/passing the 90% limit. To continue the recording, applicaiton
+     * should use {@link #setNextOutputFile} to set the next output file.
+     * Otherwise, recording will stop when reaching maximum file size.
+     * @see android.media.MediaRecorder.OnInfoListener
+     */
+    public static final int MEDIA_RECORDER_INFO_MAX_FILESIZE_APPROACHING = 802;
+    /** A maximum filesize had been reached and MediaRecorder has switched
+     * output to a new file set by application {@link #setNextOutputFile}.
+     * For best practice, application should use this event to keep track
+     * of whether the file previously set has been used or not.
+     * @see android.media.MediaRecorder.OnInfoListener
+     */
+    public static final int MEDIA_RECORDER_INFO_NEXT_OUTPUT_FILE_STARTED = 803;
+
+    /** informational events for individual tracks, for testing purpose.
+     * The track informational event usually contains two parts in the ext1
+     * arg of the onInfo() callback: bit 31-28 contains the track id; and
+     * the rest of the 28 bits contains the informational event defined here.
+     * For example, ext1 = (1 << 28 | MEDIA_RECORDER_TRACK_INFO_TYPE) if the
+     * track id is 1 for informational event MEDIA_RECORDER_TRACK_INFO_TYPE;
+     * while ext1 = (0 << 28 | MEDIA_RECORDER_TRACK_INFO_TYPE) if the track
+     * id is 0 for informational event MEDIA_RECORDER_TRACK_INFO_TYPE. The
+     * application should extract the track id and the type of informational
+     * event from ext1, accordingly.
+     *
+     * FIXME:
+     * Please update the comment for onInfo also when these
+     * events are unhidden so that application knows how to extract the track
+     * id and the informational event type from onInfo callback.
+     *
+     * {@hide}
+     */
+    public static final int MEDIA_RECORDER_TRACK_INFO_LIST_START        = 1000;
+    /** Signal the completion of the track for the recording session.
+     * {@hide}
+     */
+    public static final int MEDIA_RECORDER_TRACK_INFO_COMPLETION_STATUS = 1000;
+    /** Indicate the recording progress in time (ms) during recording.
+     * {@hide}
+     */
+    public static final int MEDIA_RECORDER_TRACK_INFO_PROGRESS_IN_TIME  = 1001;
+    /** Indicate the track type: 0 for Audio and 1 for Video.
+     * {@hide}
+     */
+    public static final int MEDIA_RECORDER_TRACK_INFO_TYPE              = 1002;
+    /** Provide the track duration information.
+     * {@hide}
+     */
+    public static final int MEDIA_RECORDER_TRACK_INFO_DURATION_MS       = 1003;
+    /** Provide the max chunk duration in time (ms) for the given track.
+     * {@hide}
+     */
+    public static final int MEDIA_RECORDER_TRACK_INFO_MAX_CHUNK_DUR_MS  = 1004;
+    /** Provide the total number of recordd frames.
+     * {@hide}
+     */
+    public static final int MEDIA_RECORDER_TRACK_INFO_ENCODED_FRAMES    = 1005;
+    /** Provide the max spacing between neighboring chunks for the given track.
+     * {@hide}
+     */
+    public static final int MEDIA_RECORDER_TRACK_INTER_CHUNK_TIME_MS    = 1006;
+    /** Provide the elapsed time measuring from the start of the recording
+     * till the first output frame of the given track is received, excluding
+     * any intentional start time offset of a recording session for the
+     * purpose of eliminating the recording sound in the recorded file.
+     * {@hide}
+     */
+    public static final int MEDIA_RECORDER_TRACK_INFO_INITIAL_DELAY_MS  = 1007;
+    /** Provide the start time difference (delay) betweeen this track and
+     * the start of the movie.
+     * {@hide}
+     */
+    public static final int MEDIA_RECORDER_TRACK_INFO_START_OFFSET_MS   = 1008;
+    /** Provide the total number of data (in kilo-bytes) encoded.
+     * {@hide}
+     */
+    public static final int MEDIA_RECORDER_TRACK_INFO_DATA_KBYTES       = 1009;
+    /**
+     * {@hide}
+     */
+    public static final int MEDIA_RECORDER_TRACK_INFO_LIST_END          = 2000;
+
+
+    /**
+     * Interface definition of a callback to be invoked to communicate some
+     * info and/or warning about the recording.
+     */
+    public interface OnInfoListener
+    {
+        /**
+         * Called to indicate an info or a warning during recording.
+         *
+         * @param mr   the MediaRecorder the info pertains to
+         * @param what the type of info or warning that has occurred
+         * <ul>
+         * <li>{@link #MEDIA_RECORDER_INFO_UNKNOWN}
+         * <li>{@link #MEDIA_RECORDER_INFO_MAX_DURATION_REACHED}
+         * <li>{@link #MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED}
+         * </ul>
+         * @param extra   an extra code, specific to the info type
+         */
+        void onInfo(MediaRecorder mr, int what, int extra);
+    }
+
+    /**
+     * Register a callback to be invoked when an informational event occurs while
+     * recording.
+     *
+     * @param listener the callback that will be run
+     */
+    public void setOnInfoListener(OnInfoListener listener)
+    {
+        mOnInfoListener = listener;
+    }
+
+    private class EventHandler extends Handler
+    {
+        private MediaRecorder mMediaRecorder;
+
+        public EventHandler(MediaRecorder mr, Looper looper) {
+            super(looper);
+            mMediaRecorder = mr;
+        }
+
+        /* Do not change these values without updating their counterparts
+         * in include/media/mediarecorder.h!
+         */
+        private static final int MEDIA_RECORDER_EVENT_LIST_START = 1;
+        private static final int MEDIA_RECORDER_EVENT_ERROR      = 1;
+        private static final int MEDIA_RECORDER_EVENT_INFO       = 2;
+        private static final int MEDIA_RECORDER_EVENT_LIST_END   = 99;
+
+        /* Events related to individual tracks */
+        private static final int MEDIA_RECORDER_TRACK_EVENT_LIST_START = 100;
+        private static final int MEDIA_RECORDER_TRACK_EVENT_ERROR      = 100;
+        private static final int MEDIA_RECORDER_TRACK_EVENT_INFO       = 101;
+        private static final int MEDIA_RECORDER_TRACK_EVENT_LIST_END   = 1000;
+
+
+        @Override
+        public void handleMessage(Message msg) {
+            if (mMediaRecorder.mNativeContext == 0) {
+                Log.w(TAG, "mediarecorder went away with unhandled events");
+                return;
+            }
+            switch(msg.what) {
+            case MEDIA_RECORDER_EVENT_ERROR:
+            case MEDIA_RECORDER_TRACK_EVENT_ERROR:
+                if (mOnErrorListener != null)
+                    mOnErrorListener.onError(mMediaRecorder, msg.arg1, msg.arg2);
+
+                return;
+
+            case MEDIA_RECORDER_EVENT_INFO:
+            case MEDIA_RECORDER_TRACK_EVENT_INFO:
+                if (mOnInfoListener != null)
+                    mOnInfoListener.onInfo(mMediaRecorder, msg.arg1, msg.arg2);
+
+                return;
+
+            default:
+                Log.e(TAG, "Unknown message type " + msg.what);
+                return;
+            }
+        }
+    }
+
+    /**
+     * Called from native code when an interesting event happens.  This method
+     * just uses the EventHandler system to post the event back to the main app thread.
+     * We use a weak reference to the original MediaRecorder object so that the native
+     * code is safe from the object disappearing from underneath it.  (This is
+     * the cookie passed to native_setup().)
+     */
+    private static void postEventFromNative(Object mediarecorder_ref,
+                                            int what, int arg1, int arg2, Object obj)
+    {
+        MediaRecorder mr = (MediaRecorder)((WeakReference)mediarecorder_ref).get();
+        if (mr == null) {
+            return;
+        }
+
+        if (mr.mEventHandler != null) {
+            Message m = mr.mEventHandler.obtainMessage(what, arg1, arg2, obj);
+            mr.mEventHandler.sendMessage(m);
+        }
+    }
+
+    /**
+     * Releases resources associated with this MediaRecorder object.
+     * It is good practice to call this method when you're done
+     * using the MediaRecorder. In particular, whenever an Activity
+     * of an application is paused (its onPause() method is called),
+     * or stopped (its onStop() method is called), this method should be
+     * invoked to release the MediaRecorder object, unless the application
+     * has a special need to keep the object around. In addition to
+     * unnecessary resources (such as memory and instances of codecs)
+     * being held, failure to call this method immediately if a
+     * MediaRecorder object is no longer needed may also lead to
+     * continuous battery consumption for mobile devices, and recording
+     * failure for other applications if no multiple instances of the
+     * same codec are supported on a device. Even if multiple instances
+     * of the same codec are supported, some performance degradation
+     * may be expected when unnecessary multiple instances are used
+     * at the same time.
+     */
+    public native void release();
+
+    private static native final void native_init();
+
+    private native final void native_setup(Object mediarecorder_this,
+            String clientName, String opPackageName) throws IllegalStateException;
+
+    private native final void native_finalize();
+
+    private native void setParameter(String nameValuePair);
+
+    /**
+     *  Return Metrics data about the current Mediarecorder instance.
+     *
+     * @return a {@link PersistableBundle} containing the set of attributes and values
+     * available for the media being generated by this instance of
+     * MediaRecorder.
+     * The attributes are descibed in {@link MetricsConstants}.
+     *
+     *  Additional vendor-specific fields may also be present in
+     *  the return value.
+     */
+    public PersistableBundle getMetrics() {
+        PersistableBundle bundle = native_getMetrics();
+        return bundle;
+    }
+
+    private native PersistableBundle native_getMetrics();
+
+    @Override
+    protected void finalize() { native_finalize(); }
+
+    public final static class MetricsConstants
+    {
+        private MetricsConstants() {}
+
+        /**
+         * Key to extract the audio bitrate
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         */
+        public static final String AUDIO_BITRATE = "android.media.mediarecorder.audio-bitrate";
+
+        /**
+         * Key to extract the number of audio channels
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         */
+        public static final String AUDIO_CHANNELS = "android.media.mediarecorder.audio-channels";
+
+        /**
+         * Key to extract the audio samplerate
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         */
+        public static final String AUDIO_SAMPLERATE = "android.media.mediarecorder.audio-samplerate";
+
+        /**
+         * Key to extract the audio timescale
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         */
+        public static final String AUDIO_TIMESCALE = "android.media.mediarecorder.audio-timescale";
+
+        /**
+         * Key to extract the video capture frame rate
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is a double.
+         */
+        public static final String CAPTURE_FPS = "android.media.mediarecorder.capture-fps";
+
+        /**
+         * Key to extract the video capture framerate enable value
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         */
+        public static final String CAPTURE_FPS_ENABLE = "android.media.mediarecorder.capture-fpsenable";
+
+        /**
+         * Key to extract the intended playback frame rate
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         */
+        public static final String FRAMERATE = "android.media.mediarecorder.frame-rate";
+
+        /**
+         * Key to extract the height (in pixels) of the captured video
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         */
+        public static final String HEIGHT = "android.media.mediarecorder.height";
+
+        /**
+         * Key to extract the recorded movies time units
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         * A value of 1000 indicates that the movie's timing is in milliseconds.
+         */
+        public static final String MOVIE_TIMESCALE = "android.media.mediarecorder.movie-timescale";
+
+        /**
+         * Key to extract the rotation (in degrees) to properly orient the video
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         */
+        public static final String ROTATION = "android.media.mediarecorder.rotation";
+
+        /**
+         * Key to extract the video bitrate from being used
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         */
+        public static final String VIDEO_BITRATE = "android.media.mediarecorder.video-bitrate";
+
+        /**
+         * Key to extract the value for how often video iframes are generated
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         */
+        public static final String VIDEO_IFRAME_INTERVAL = "android.media.mediarecorder.video-iframe-interval";
+
+        /**
+         * Key to extract the video encoding level
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         */
+        public static final String VIDEO_LEVEL = "android.media.mediarecorder.video-encoder-level";
+
+        /**
+         * Key to extract the video encoding profile
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         */
+        public static final String VIDEO_PROFILE = "android.media.mediarecorder.video-encoder-profile";
+
+        /**
+         * Key to extract the recorded video time units
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         * A value of 1000 indicates that the video's timing is in milliseconds.
+         */
+        public static final String VIDEO_TIMESCALE = "android.media.mediarecorder.video-timescale";
+
+        /**
+         * Key to extract the width (in pixels) of the captured video
+         * from the {@link MediaRecorder#getMetrics} return.
+         * The value is an integer.
+         */
+        public static final String WIDTH = "android.media.mediarecorder.width";
+
+    }
+}
+