Move Camera Java/Native source into Gallery2

Change-Id: I968efe4d656e88a7760d3c0044f65b4adac2ddd1

1 files changed, 2816 insertions, 0 deletions

diff --git a/src/com/android/camera/VideoModule.java b/src/com/android/camera/VideoModule.java
new file mode 100644
index 000000000..d32234a95
--- /dev/null
+++ b/src/com/android/camera/VideoModule.java
@@ -0,0 +1,2816 @@
+/*
+ * Copyright (C) 2012 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 com.android.camera;
+
+import android.annotation.TargetApi;
+import android.app.Activity;
+import android.content.ActivityNotFoundException;
+import android.content.BroadcastReceiver;
+import android.content.ContentResolver;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.SharedPreferences.Editor;
+import android.content.res.Configuration;
+import android.graphics.Bitmap;
+import android.graphics.SurfaceTexture;
+import android.hardware.Camera.CameraInfo;
+import android.hardware.Camera.Parameters;
+import android.hardware.Camera.PictureCallback;
+import android.hardware.Camera.Size;
+import android.location.Location;
+import android.media.CamcorderProfile;
+import android.media.CameraProfile;
+import android.media.MediaRecorder;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.os.ParcelFileDescriptor;
+import android.os.SystemClock;
+import android.provider.MediaStore;
+import android.provider.MediaStore.Video;
+import android.util.Log;
+import android.view.Gravity;
+import android.view.KeyEvent;
+import android.view.LayoutInflater;
+import android.view.MotionEvent;
+import android.view.OrientationEventListener;
+import android.view.SurfaceHolder;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.ViewGroup;
+import android.view.WindowManager;
+import android.widget.FrameLayout;
+import android.widget.FrameLayout.LayoutParams;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.android.camera.ui.AbstractSettingPopup;
+import com.android.camera.ui.PieRenderer;
+import com.android.camera.ui.PopupManager;
+import com.android.camera.ui.PreviewSurfaceView;
+import com.android.camera.ui.RenderOverlay;
+import com.android.camera.ui.Rotatable;
+import com.android.camera.ui.RotateImageView;
+import com.android.camera.ui.RotateLayout;
+import com.android.camera.ui.RotateTextToast;
+import com.android.camera.ui.TwoStateImageView;
+import com.android.camera.ui.ZoomRenderer;
+import com.android.gallery3d.common.ApiHelper;
+import com.android.gallery3d.util.AccessibilityUtils;
+
+import java.io.File;
+import java.io.IOException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Iterator;
+import java.util.List;
+
+public class VideoModule implements CameraModule,
+    CameraPreference.OnPreferenceChangedListener,
+    ShutterButton.OnShutterButtonListener,
+    MediaRecorder.OnErrorListener,
+    MediaRecorder.OnInfoListener,
+    EffectsRecorder.EffectsListener,
+    PieRenderer.PieListener {
+
+    private static final String TAG = "CAM_VideoModule";
+
+    // We number the request code from 1000 to avoid collision with Gallery.
+    private static final int REQUEST_EFFECT_BACKDROPPER = 1000;
+
+    private static final int CHECK_DISPLAY_ROTATION = 3;
+    private static final int CLEAR_SCREEN_DELAY = 4;
+    private static final int UPDATE_RECORD_TIME = 5;
+    private static final int ENABLE_SHUTTER_BUTTON = 6;
+    private static final int SHOW_TAP_TO_SNAPSHOT_TOAST = 7;
+    private static final int SWITCH_CAMERA = 8;
+    private static final int SWITCH_CAMERA_START_ANIMATION = 9;
+    private static final int HIDE_SURFACE_VIEW = 10;
+
+    private static final int SCREEN_DELAY = 2 * 60 * 1000;
+
+    private static final long SHUTTER_BUTTON_TIMEOUT = 500L; // 500ms
+
+    /**
+     * An unpublished intent flag requesting to start recording straight away
+     * and return as soon as recording is stopped.
+     * TODO: consider publishing by moving into MediaStore.
+     */
+    private static final String EXTRA_QUICK_CAPTURE =
+            "android.intent.extra.quickCapture";
+
+    private static final int MIN_THUMB_SIZE = 64;
+    // module fields
+    private CameraActivity mActivity;
+    private View mRootView;
+    private boolean mPaused;
+    private int mCameraId;
+    private Parameters mParameters;
+
+    private boolean mSnapshotInProgress = false;
+
+    private static final String EFFECT_BG_FROM_GALLERY = "gallery";
+
+    private final CameraErrorCallback mErrorCallback = new CameraErrorCallback();
+
+    private ComboPreferences mPreferences;
+    private PreferenceGroup mPreferenceGroup;
+
+    private PreviewFrameLayout mPreviewFrameLayout;
+    private boolean mSurfaceViewReady;
+    private SurfaceHolder.Callback mSurfaceViewCallback;
+    private PreviewSurfaceView mPreviewSurfaceView;
+    private CameraScreenNail.OnFrameDrawnListener mFrameDrawnListener;
+    private View mReviewControl;
+
+    // An review image having same size as preview. It is displayed when
+    // recording is stopped in capture intent.
+    private ImageView mReviewImage;
+    private Rotatable mReviewCancelButton;
+    private Rotatable mReviewDoneButton;
+    private RotateImageView mReviewPlayButton;
+    private ShutterButton mShutterButton;
+    private TextView mRecordingTimeView;
+    private RotateLayout mBgLearningMessageRotater;
+    private View mBgLearningMessageFrame;
+    private LinearLayout mLabelsLinearLayout;
+
+    private boolean mIsVideoCaptureIntent;
+    private boolean mQuickCapture;
+
+    private MediaRecorder mMediaRecorder;
+    private EffectsRecorder mEffectsRecorder;
+    private boolean mEffectsDisplayResult;
+
+    private int mEffectType = EffectsRecorder.EFFECT_NONE;
+    private Object mEffectParameter = null;
+    private String mEffectUriFromGallery = null;
+    private String mPrefVideoEffectDefault;
+    private boolean mResetEffect = true;
+
+    private boolean mSwitchingCamera;
+    private boolean mMediaRecorderRecording = false;
+    private long mRecordingStartTime;
+    private boolean mRecordingTimeCountsDown = false;
+    private RotateLayout mRecordingTimeRect;
+    private long mOnResumeTime;
+    // The video file that the hardware camera is about to record into
+    // (or is recording into.)
+    private String mVideoFilename;
+    private ParcelFileDescriptor mVideoFileDescriptor;
+
+    // The video file that has already been recorded, and that is being
+    // examined by the user.
+    private String mCurrentVideoFilename;
+    private Uri mCurrentVideoUri;
+    private ContentValues mCurrentVideoValues;
+
+    private CamcorderProfile mProfile;
+
+    // The video duration limit. 0 menas no limit.
+    private int mMaxVideoDurationInMs;
+
+    // Time Lapse parameters.
+    private boolean mCaptureTimeLapse = false;
+    // Default 0. If it is larger than 0, the camcorder is in time lapse mode.
+    private int mTimeBetweenTimeLapseFrameCaptureMs = 0;
+    private View mTimeLapseLabel;
+
+    private int mDesiredPreviewWidth;
+    private int mDesiredPreviewHeight;
+
+    boolean mPreviewing = false; // True if preview is started.
+    // The display rotation in degrees. This is only valid when mPreviewing is
+    // true.
+    private int mDisplayRotation;
+    private int mCameraDisplayOrientation;
+
+    private ContentResolver mContentResolver;
+
+    private LocationManager mLocationManager;
+
+    private VideoNamer mVideoNamer;
+
+    private RenderOverlay mRenderOverlay;
+    private PieRenderer mPieRenderer;
+
+    private VideoController mVideoControl;
+    private AbstractSettingPopup mPopup;
+    private int mPendingSwitchCameraId;
+
+    private ZoomRenderer mZoomRenderer;
+
+    private PreviewGestures mGestures;
+    private View mMenu;
+    private View mBlocker;
+    private View mOnScreenIndicators;
+    private ImageView mFlashIndicator;
+
+    private final Handler mHandler = new MainHandler();
+
+    // The degrees of the device rotated clockwise from its natural orientation.
+    private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN;
+
+    private int mZoomValue;  // The current zoom value.
+    private int mZoomMax;
+    private List<Integer> mZoomRatios;
+    private boolean mRestoreFlash;  // This is used to check if we need to restore the flash
+                                    // status when going back from gallery.
+
+    protected class CameraOpenThread extends Thread {
+        @Override
+        public void run() {
+            openCamera();
+        }
+    }
+
+    private void openCamera() {
+        try {
+            mActivity.mCameraDevice = Util.openCamera(mActivity, mCameraId);
+            mParameters = mActivity.mCameraDevice.getParameters();
+        } catch (CameraHardwareException e) {
+            mActivity.mOpenCameraFail = true;
+        } catch (CameraDisabledException e) {
+            mActivity.mCameraDisabled = true;
+        }
+    }
+
+    // This Handler is used to post message back onto the main thread of the
+    // application
+    private class MainHandler extends Handler {
+        @Override
+        public void handleMessage(Message msg) {
+            switch (msg.what) {
+
+                case ENABLE_SHUTTER_BUTTON:
+                    mShutterButton.setEnabled(true);
+                    break;
+
+                case CLEAR_SCREEN_DELAY: {
+                    mActivity.getWindow().clearFlags(
+                            WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+                    break;
+                }
+
+                case UPDATE_RECORD_TIME: {
+                    updateRecordingTime();
+                    break;
+                }
+
+                case CHECK_DISPLAY_ROTATION: {
+                    // Restart the preview if display rotation has changed.
+                    // Sometimes this happens when the device is held upside
+                    // down and camera app is opened. Rotation animation will
+                    // take some time and the rotation value we have got may be
+                    // wrong. Framework does not have a callback for this now.
+                    if ((Util.getDisplayRotation(mActivity) != mDisplayRotation)
+                            && !mMediaRecorderRecording && !mSwitchingCamera) {
+                        startPreview();
+                    }
+                    if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) {
+                        mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100);
+                    }
+                    break;
+                }
+
+                case SHOW_TAP_TO_SNAPSHOT_TOAST: {
+                    showTapToSnapshotToast();
+                    break;
+                }
+
+                case SWITCH_CAMERA: {
+                    switchCamera();
+                    break;
+                }
+
+                case SWITCH_CAMERA_START_ANIMATION: {
+                    ((CameraScreenNail) mActivity.mCameraScreenNail).animateSwitchCamera();
+
+                    // Enable all camera controls.
+                    mSwitchingCamera = false;
+                    break;
+                }
+
+                case HIDE_SURFACE_VIEW: {
+                    mPreviewSurfaceView.setVisibility(View.GONE);
+                    break;
+                }
+
+                default:
+                    Log.v(TAG, "Unhandled message: " + msg.what);
+                    break;
+            }
+        }
+    }
+
+    private BroadcastReceiver mReceiver = null;
+
+    private class MyBroadcastReceiver extends BroadcastReceiver {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            String action = intent.getAction();
+            if (action.equals(Intent.ACTION_MEDIA_EJECT)) {
+                stopVideoRecording();
+            } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) {
+                Toast.makeText(mActivity,
+                        mActivity.getResources().getString(R.string.wait), Toast.LENGTH_LONG).show();
+            }
+        }
+    }
+
+    private String createName(long dateTaken) {
+        Date date = new Date(dateTaken);
+        SimpleDateFormat dateFormat = new SimpleDateFormat(
+                mActivity.getString(R.string.video_file_name_format));
+
+        return dateFormat.format(date);
+    }
+
+    private int getPreferredCameraId(ComboPreferences preferences) {
+        int intentCameraId = Util.getCameraFacingIntentExtras(mActivity);
+        if (intentCameraId != -1) {
+            // Testing purpose. Launch a specific camera through the intent
+            // extras.
+            return intentCameraId;
+        } else {
+            return CameraSettings.readPreferredCameraId(preferences);
+        }
+    }
+
+    private void initializeSurfaceView() {
+        mPreviewSurfaceView = (PreviewSurfaceView) mRootView.findViewById(R.id.preview_surface_view);
+        if (!ApiHelper.HAS_SURFACE_TEXTURE) {  // API level < 11
+            if (mSurfaceViewCallback == null) {
+                mSurfaceViewCallback = new SurfaceViewCallback();
+            }
+            mPreviewSurfaceView.getHolder().addCallback(mSurfaceViewCallback);
+            mPreviewSurfaceView.setVisibility(View.VISIBLE);
+        } else if (!ApiHelper.HAS_SURFACE_TEXTURE_RECORDING) {  // API level < 16
+            if (mSurfaceViewCallback == null) {
+                mSurfaceViewCallback = new SurfaceViewCallback();
+                mFrameDrawnListener = new CameraScreenNail.OnFrameDrawnListener() {
+                    @Override
+                    public void onFrameDrawn(CameraScreenNail c) {
+                        mHandler.sendEmptyMessage(HIDE_SURFACE_VIEW);
+                    }
+                };
+            }
+            mPreviewSurfaceView.getHolder().addCallback(mSurfaceViewCallback);
+        }
+    }
+
+    private void initializeOverlay() {
+        mRenderOverlay = (RenderOverlay) mRootView.findViewById(R.id.render_overlay);
+        if (mPieRenderer == null) {
+            mPieRenderer = new PieRenderer(mActivity);
+            mVideoControl = new VideoController(mActivity, this, mPieRenderer);
+            mVideoControl.setListener(this);
+            mPieRenderer.setPieListener(this);
+        }
+        mRenderOverlay.addRenderer(mPieRenderer);
+        if (mZoomRenderer == null) {
+            mZoomRenderer = new ZoomRenderer(mActivity);
+        }
+        mRenderOverlay.addRenderer(mZoomRenderer);
+        if (mGestures == null) {
+            mGestures = new PreviewGestures(mActivity, this, mZoomRenderer, mPieRenderer);
+        }
+        mGestures.setRenderOverlay(mRenderOverlay);
+        mGestures.clearTouchReceivers();
+        mGestures.addTouchReceiver(mMenu);
+        mGestures.addTouchReceiver(mBlocker);
+
+        if (isVideoCaptureIntent()) {
+            if (mReviewCancelButton != null) {
+                mGestures.addTouchReceiver((View) mReviewCancelButton);
+            }
+            if (mReviewDoneButton != null) {
+                mGestures.addTouchReceiver((View) mReviewDoneButton);
+            }
+            if (mReviewPlayButton != null) {
+                mGestures.addTouchReceiver((View) mReviewPlayButton);
+            }
+        }
+    }
+
+    @Override
+    public void init(CameraActivity activity, View root, boolean reuseScreenNail) {
+        mActivity = activity;
+        mRootView = root;
+        mPreferences = new ComboPreferences(mActivity);
+        CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal());
+        mCameraId = getPreferredCameraId(mPreferences);
+
+        mPreferences.setLocalId(mActivity, mCameraId);
+        CameraSettings.upgradeLocalPreferences(mPreferences.getLocal());
+
+        mActivity.mNumberOfCameras = CameraHolder.instance().getNumberOfCameras();
+        mPrefVideoEffectDefault = mActivity.getString(R.string.pref_video_effect_default);
+        resetEffect();
+
+        /*
+         * To reduce startup time, we start the preview in another thread.
+         * We make sure the preview is started at the end of onCreate.
+         */
+        CameraOpenThread cameraOpenThread = new CameraOpenThread();
+        cameraOpenThread.start();
+
+        mContentResolver = mActivity.getContentResolver();
+
+        mActivity.getLayoutInflater().inflate(R.layout.video_module, (ViewGroup) mRootView);
+
+        // Surface texture is from camera screen nail and startPreview needs it.
+        // This must be done before startPreview.
+        mIsVideoCaptureIntent = isVideoCaptureIntent();
+        if (reuseScreenNail) {
+            mActivity.reuseCameraScreenNail(!mIsVideoCaptureIntent);
+        } else {
+            mActivity.createCameraScreenNail(!mIsVideoCaptureIntent);
+        }
+        initializeSurfaceView();
+
+        // Make sure camera device is opened.
+        try {
+            cameraOpenThread.join();
+            if (mActivity.mOpenCameraFail) {
+                Util.showErrorAndFinish(mActivity, R.string.cannot_connect_camera);
+                return;
+            } else if (mActivity.mCameraDisabled) {
+                Util.showErrorAndFinish(mActivity, R.string.camera_disabled);
+                return;
+            }
+        } catch (InterruptedException ex) {
+            // ignore
+        }
+
+        readVideoPreferences();
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                startPreview();
+            }
+        }).start();
+
+        initializeControlByIntent();
+        initializeOverlay();
+        initializeMiscControls();
+
+        mQuickCapture = mActivity.getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false);
+        mLocationManager = new LocationManager(mActivity, null);
+
+        setOrientationIndicator(0, false);
+        setDisplayOrientation();
+
+        showTimeLapseUI(mCaptureTimeLapse);
+        initializeVideoSnapshot();
+        resizeForPreviewAspectRatio();
+
+        initializeVideoControl();
+        mPendingSwitchCameraId = -1;
+        updateOnScreenIndicators();
+    }
+
+    @Override
+    public void onStop() {}
+
+    private void loadCameraPreferences() {
+        CameraSettings settings = new CameraSettings(mActivity, mParameters,
+                mCameraId, CameraHolder.instance().getCameraInfo());
+        // Remove the video quality preference setting when the quality is given in the intent.
+        mPreferenceGroup = filterPreferenceScreenByIntent(
+                settings.getPreferenceGroup(R.xml.video_preferences));
+    }
+
+    @Override
+    public boolean collapseCameraControls() {
+        boolean ret = false;
+        if (mPopup != null) {
+            dismissPopup(false);
+            ret = true;
+        }
+        return ret;
+    }
+
+    public boolean removeTopLevelPopup() {
+        if (mPopup != null) {
+            dismissPopup(true);
+            return true;
+        }
+        return false;
+    }
+
+    private void enableCameraControls(boolean enable) {
+        if (mGestures != null) {
+            mGestures.setZoomOnly(!enable);
+        }
+        if (mPieRenderer != null && mPieRenderer.showsItems()) {
+            mPieRenderer.hide();
+        }
+    }
+
+    private void initializeVideoControl() {
+        loadCameraPreferences();
+        mVideoControl.initialize(mPreferenceGroup);
+        if (effectsActive()) {
+            mVideoControl.overrideSettings(
+                    CameraSettings.KEY_VIDEO_QUALITY,
+                    Integer.toString(getLowVideoQuality()));
+        }
+    }
+
+    @TargetApi(ApiHelper.VERSION_CODES.HONEYCOMB)
+    private static int getLowVideoQuality() {
+        if (ApiHelper.HAS_FINE_RESOLUTION_QUALITY_LEVELS) {
+            return CamcorderProfile.QUALITY_480P;
+        } else {
+            return CamcorderProfile.QUALITY_LOW;
+        }
+    }
+
+
+    @Override
+    public void onOrientationChanged(int orientation) {
+        // We keep the last known orientation. So if the user first orient
+        // the camera then point the camera to floor or sky, we still have
+        // the correct orientation.
+        if (orientation == OrientationEventListener.ORIENTATION_UNKNOWN) return;
+        int newOrientation = Util.roundOrientation(orientation, mOrientation);
+
+        if (mOrientation != newOrientation) {
+            mOrientation = newOrientation;
+            // The input of effects recorder is affected by
+            // android.hardware.Camera.setDisplayOrientation. Its value only
+            // compensates the camera orientation (no Display.getRotation).
+            // So the orientation hint here should only consider sensor
+            // orientation.
+            if (effectsActive()) {
+                mEffectsRecorder.setOrientationHint(mOrientation);
+            }
+        }
+
+        // Show the toast after getting the first orientation changed.
+        if (mHandler.hasMessages(SHOW_TAP_TO_SNAPSHOT_TOAST)) {
+            mHandler.removeMessages(SHOW_TAP_TO_SNAPSHOT_TOAST);
+            showTapToSnapshotToast();
+        }
+    }
+
+    private void setOrientationIndicator(int orientation, boolean animation) {
+        Rotatable[] indicators = {
+                mBgLearningMessageRotater,
+                mReviewDoneButton, mReviewPlayButton};
+        for (Rotatable indicator : indicators) {
+            if (indicator != null) indicator.setOrientation(orientation, animation);
+        }
+        if (mGestures != null) {
+            mGestures.setOrientation(orientation);
+        }
+
+        // We change the orientation of the review cancel button only for tablet
+        // UI because there's a label along with the X icon. For phone UI, we
+        // don't change the orientation because there's only a symmetrical X
+        // icon.
+        if (mReviewCancelButton instanceof RotateLayout) {
+            mReviewCancelButton.setOrientation(orientation, animation);
+        }
+
+        // We change the orientation of the linearlayout only for phone UI because when in portrait
+        // the width is not enough.
+        if (mLabelsLinearLayout != null) {
+            if (((orientation / 90) & 1) == 0) {
+                mLabelsLinearLayout.setOrientation(LinearLayout.VERTICAL);
+            } else {
+                mLabelsLinearLayout.setOrientation(LinearLayout.HORIZONTAL);
+            }
+        }
+        mRecordingTimeRect.setOrientation(0, animation);
+    }
+
+    private void startPlayVideoActivity() {
+        Intent intent = new Intent(Intent.ACTION_VIEW);
+        intent.setDataAndType(mCurrentVideoUri, convertOutputFormatToMimeType(mProfile.fileFormat));
+        try {
+            mActivity.startActivity(intent);
+        } catch (ActivityNotFoundException ex) {
+            Log.e(TAG, "Couldn't view video " + mCurrentVideoUri, ex);
+        }
+    }
+
+    @OnClickAttr
+    public void onReviewPlayClicked(View v) {
+        startPlayVideoActivity();
+    }
+
+    @OnClickAttr
+    public void onReviewDoneClicked(View v) {
+        doReturnToCaller(true);
+    }
+
+    @OnClickAttr
+    public void onReviewCancelClicked(View v) {
+        stopVideoRecording();
+        doReturnToCaller(false);
+    }
+
+    private void onStopVideoRecording() {
+        mEffectsDisplayResult = true;
+        boolean recordFail = stopVideoRecording();
+        if (mIsVideoCaptureIntent) {
+            if (!effectsActive()) {
+                if (mQuickCapture) {
+                    doReturnToCaller(!recordFail);
+                } else if (!recordFail) {
+                    showAlert();
+                }
+            }
+        } else if (!recordFail){
+            // Start capture animation.
+            if (!mPaused && ApiHelper.HAS_SURFACE_TEXTURE_RECORDING) {
+                // The capture animation is disabled on ICS because we use SurfaceView
+                // for preview during recording. When the recording is done, we switch
+                // back to use SurfaceTexture for preview and we need to stop then start
+                // the preview. This will cause the preview flicker since the preview
+                // will not be continuous for a short period of time.
+                ((CameraScreenNail) mActivity.mCameraScreenNail).animateCapture(mDisplayRotation);
+            }
+        }
+    }
+
+    public void onProtectiveCurtainClick(View v) {
+        // Consume clicks
+    }
+
+    @Override
+    public void onShutterButtonClick() {
+        if (collapseCameraControls() || mSwitchingCamera) return;
+
+        boolean stop = mMediaRecorderRecording;
+
+        if (stop) {
+            onStopVideoRecording();
+        } else {
+            startVideoRecording();
+        }
+        mShutterButton.setEnabled(false);
+
+        // Keep the shutter button disabled when in video capture intent
+        // mode and recording is stopped. It'll be re-enabled when
+        // re-take button is clicked.
+        if (!(mIsVideoCaptureIntent && stop)) {
+            mHandler.sendEmptyMessageDelayed(
+                    ENABLE_SHUTTER_BUTTON, SHUTTER_BUTTON_TIMEOUT);
+        }
+    }
+
+    @Override
+    public void onShutterButtonFocus(boolean pressed) {
+        // Do nothing (everything happens in onShutterButtonClick).
+    }
+
+    private void readVideoPreferences() {
+        // The preference stores values from ListPreference and is thus string type for all values.
+        // We need to convert it to int manually.
+        String defaultQuality = CameraSettings.getDefaultVideoQuality(mCameraId,
+                mActivity.getResources().getString(R.string.pref_video_quality_default));
+        String videoQuality =
+                mPreferences.getString(CameraSettings.KEY_VIDEO_QUALITY,
+                        defaultQuality);
+        int quality = Integer.valueOf(videoQuality);
+
+        // Set video quality.
+        Intent intent = mActivity.getIntent();
+        if (intent.hasExtra(MediaStore.EXTRA_VIDEO_QUALITY)) {
+            int extraVideoQuality =
+                    intent.getIntExtra(MediaStore.EXTRA_VIDEO_QUALITY, 0);
+            if (extraVideoQuality > 0) {
+                quality = CamcorderProfile.QUALITY_HIGH;
+            } else {  // 0 is mms.
+                quality = CamcorderProfile.QUALITY_LOW;
+            }
+        }
+
+        // Set video duration limit. The limit is read from the preference,
+        // unless it is specified in the intent.
+        if (intent.hasExtra(MediaStore.EXTRA_DURATION_LIMIT)) {
+            int seconds =
+                    intent.getIntExtra(MediaStore.EXTRA_DURATION_LIMIT, 0);
+            mMaxVideoDurationInMs = 1000 * seconds;
+        } else {
+            mMaxVideoDurationInMs = CameraSettings.getMaxVideoDuration(mActivity);
+        }
+
+        // Set effect
+        mEffectType = CameraSettings.readEffectType(mPreferences);
+        if (mEffectType != EffectsRecorder.EFFECT_NONE) {
+            mEffectParameter = CameraSettings.readEffectParameter(mPreferences);
+            // Set quality to be no higher than 480p.
+            CamcorderProfile profile = CamcorderProfile.get(mCameraId, quality);
+            if (profile.videoFrameHeight > 480) {
+                quality = getLowVideoQuality();
+            }
+        } else {
+            mEffectParameter = null;
+        }
+        // Read time lapse recording interval.
+        if (ApiHelper.HAS_TIME_LAPSE_RECORDING) {
+            String frameIntervalStr = mPreferences.getString(
+                    CameraSettings.KEY_VIDEO_TIME_LAPSE_FRAME_INTERVAL,
+                    mActivity.getString(R.string.pref_video_time_lapse_frame_interval_default));
+            mTimeBetweenTimeLapseFrameCaptureMs = Integer.parseInt(frameIntervalStr);
+            mCaptureTimeLapse = (mTimeBetweenTimeLapseFrameCaptureMs != 0);
+        }
+        // TODO: This should be checked instead directly +1000.
+        if (mCaptureTimeLapse) quality += 1000;
+        mProfile = CamcorderProfile.get(mCameraId, quality);
+        getDesiredPreviewSize();
+    }
+
+    private void writeDefaultEffectToPrefs()  {
+        ComboPreferences.Editor editor = mPreferences.edit();
+        editor.putString(CameraSettings.KEY_VIDEO_EFFECT,
+                mActivity.getString(R.string.pref_video_effect_default));
+        editor.apply();
+    }
+
+    @TargetApi(ApiHelper.VERSION_CODES.HONEYCOMB)
+    private void getDesiredPreviewSize() {
+        mParameters = mActivity.mCameraDevice.getParameters();
+        if (ApiHelper.HAS_GET_SUPPORTED_VIDEO_SIZE) {
+            if (mParameters.getSupportedVideoSizes() == null || effectsActive()) {
+                mDesiredPreviewWidth = mProfile.videoFrameWidth;
+                mDesiredPreviewHeight = mProfile.videoFrameHeight;
+            } else {  // Driver supports separates outputs for preview and video.
+                List<Size> sizes = mParameters.getSupportedPreviewSizes();
+                Size preferred = mParameters.getPreferredPreviewSizeForVideo();
+                int product = preferred.width * preferred.height;
+                Iterator<Size> it = sizes.iterator();
+                // Remove the preview sizes that are not preferred.
+                while (it.hasNext()) {
+                    Size size = it.next();
+                    if (size.width * size.height > product) {
+                        it.remove();
+                    }
+                }
+                Size optimalSize = Util.getOptimalPreviewSize(mActivity, sizes,
+                        (double) mProfile.videoFrameWidth / mProfile.videoFrameHeight);
+                mDesiredPreviewWidth = optimalSize.width;
+                mDesiredPreviewHeight = optimalSize.height;
+            }
+        } else {
+            mDesiredPreviewWidth = mProfile.videoFrameWidth;
+            mDesiredPreviewHeight = mProfile.videoFrameHeight;
+        }
+        Log.v(TAG, "mDesiredPreviewWidth=" + mDesiredPreviewWidth +
+                ". mDesiredPreviewHeight=" + mDesiredPreviewHeight);
+    }
+
+    private void resizeForPreviewAspectRatio() {
+        mPreviewFrameLayout.setAspectRatio(
+                (double) mProfile.videoFrameWidth / mProfile.videoFrameHeight);
+    }
+
+    @Override
+    public void installIntentFilter() {
+        // install an intent filter to receive SD card related events.
+        IntentFilter intentFilter =
+                new IntentFilter(Intent.ACTION_MEDIA_EJECT);
+        intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED);
+        intentFilter.addDataScheme("file");
+        mReceiver = new MyBroadcastReceiver();
+        mActivity.registerReceiver(mReceiver, intentFilter);
+    }
+
+    @Override
+    public void onResumeBeforeSuper() {
+        mPaused = false;
+    }
+
+    @Override
+    public void onResumeAfterSuper() {
+        if (mActivity.mOpenCameraFail || mActivity.mCameraDisabled)
+            return;
+
+        mZoomValue = 0;
+
+        showVideoSnapshotUI(false);
+
+
+        if (!mPreviewing) {
+            if (resetEffect()) {
+                mBgLearningMessageFrame.setVisibility(View.GONE);
+            }
+            openCamera();
+            if (mActivity.mOpenCameraFail) {
+                Util.showErrorAndFinish(mActivity,
+                        R.string.cannot_connect_camera);
+                return;
+            } else if (mActivity.mCameraDisabled) {
+                Util.showErrorAndFinish(mActivity, R.string.camera_disabled);
+                return;
+            }
+            readVideoPreferences();
+            resizeForPreviewAspectRatio();
+            new Thread(new Runnable() {
+                @Override
+                public void run() {
+                    startPreview();
+                }
+            }).start();
+        }
+
+        // Initializing it here after the preview is started.
+        initializeZoom();
+
+        keepScreenOnAwhile();
+
+        // Initialize location service.
+        boolean recordLocation = RecordLocationPreference.get(mPreferences,
+                mContentResolver);
+        mLocationManager.recordLocation(recordLocation);
+
+        if (mPreviewing) {
+            mOnResumeTime = SystemClock.uptimeMillis();
+            mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100);
+        }
+        // Dismiss open menu if exists.
+        PopupManager.getInstance(mActivity).notifyShowPopup(null);
+
+        mVideoNamer = new VideoNamer();
+    }
+
+    private void setDisplayOrientation() {
+        mDisplayRotation = Util.getDisplayRotation(mActivity);
+        if (ApiHelper.HAS_SURFACE_TEXTURE) {
+            // The display rotation is handled by gallery.
+            mCameraDisplayOrientation = Util.getDisplayOrientation(0, mCameraId);
+        } else {
+            // We need to consider display rotation ourselves.
+            mCameraDisplayOrientation = Util.getDisplayOrientation(mDisplayRotation, mCameraId);
+        }
+        // GLRoot also uses the DisplayRotation, and needs to be told to layout to update
+        mActivity.getGLRoot().requestLayoutContentPane();
+    }
+
+    private void startPreview() {
+        Log.v(TAG, "startPreview");
+
+        mActivity.mCameraDevice.setErrorCallback(mErrorCallback);
+        if (mPreviewing == true) {
+            stopPreview();
+            if (effectsActive() && mEffectsRecorder != null) {
+                mEffectsRecorder.release();
+                mEffectsRecorder = null;
+            }
+        }
+
+        mPreviewing = true;
+
+        setDisplayOrientation();
+        mActivity.mCameraDevice.setDisplayOrientation(mCameraDisplayOrientation);
+        setCameraParameters();
+
+        try {
+            if (!effectsActive()) {
+                if (ApiHelper.HAS_SURFACE_TEXTURE) {
+                    SurfaceTexture surfaceTexture = ((CameraScreenNail) mActivity.mCameraScreenNail)
+                            .getSurfaceTexture();
+                    if (surfaceTexture == null) {
+                        return; // The texture has been destroyed (pause, etc)
+                    }
+                    mActivity.mCameraDevice.setPreviewTextureAsync(surfaceTexture);
+                } else {
+                    mActivity.mCameraDevice.setPreviewDisplayAsync(mPreviewSurfaceView.getHolder());
+                }
+                mActivity.mCameraDevice.startPreviewAsync();
+            } else {
+                initializeEffectsPreview();
+                mEffectsRecorder.startPreview();
+            }
+        } catch (Throwable ex) {
+            closeCamera();
+            throw new RuntimeException("startPreview failed", ex);
+        } finally {
+            mActivity.runOnUiThread(new Runnable() {
+                @Override
+                public void run() {
+                    if (mActivity.mOpenCameraFail) {
+                        Util.showErrorAndFinish(mActivity, R.string.cannot_connect_camera);
+                    } else if (mActivity.mCameraDisabled) {
+                        Util.showErrorAndFinish(mActivity, R.string.camera_disabled);
+                    }
+                }
+            });
+        }
+    }
+
+    private void stopPreview() {
+        mActivity.mCameraDevice.stopPreview();
+        mPreviewing = false;
+    }
+
+    // Closing the effects out. Will shut down the effects graph.
+    private void closeEffects() {
+        Log.v(TAG, "Closing effects");
+        mEffectType = EffectsRecorder.EFFECT_NONE;
+        if (mEffectsRecorder == null) {
+            Log.d(TAG, "Effects are already closed. Nothing to do");
+            return;
+        }
+        // This call can handle the case where the camera is already released
+        // after the recording has been stopped.
+        mEffectsRecorder.release();
+        mEffectsRecorder = null;
+    }
+
+    // By default, we want to close the effects as well with the camera.
+    private void closeCamera() {
+        closeCamera(true);
+    }
+
+    // In certain cases, when the effects are active, we may want to shutdown
+    // only the camera related parts, and handle closing the effects in the
+    // effectsUpdate callback.
+    // For example, in onPause, we want to make the camera available to
+    // outside world immediately, however, want to wait till the effects
+    // callback to shut down the effects. In such a case, we just disconnect
+    // the effects from the camera by calling disconnectCamera. That way
+    // the effects can handle that when shutting down.
+    //
+    // @param closeEffectsAlso - indicates whether we want to close the
+    // effects also along with the camera.
+    private void closeCamera(boolean closeEffectsAlso) {
+        Log.v(TAG, "closeCamera");
+        if (mActivity.mCameraDevice == null) {
+            Log.d(TAG, "already stopped.");
+            return;
+        }
+
+        if (mEffectsRecorder != null) {
+            // Disconnect the camera from effects so that camera is ready to
+            // be released to the outside world.
+            mEffectsRecorder.disconnectCamera();
+        }
+        if (closeEffectsAlso) closeEffects();
+        mActivity.mCameraDevice.setZoomChangeListener(null);
+        mActivity.mCameraDevice.setErrorCallback(null);
+        CameraHolder.instance().release();
+        mActivity.mCameraDevice = null;
+        mPreviewing = false;
+        mSnapshotInProgress = false;
+    }
+
+    private void releasePreviewResources() {
+        if (ApiHelper.HAS_SURFACE_TEXTURE) {
+            CameraScreenNail screenNail = (CameraScreenNail) mActivity.mCameraScreenNail;
+            screenNail.releaseSurfaceTexture();
+            if (!ApiHelper.HAS_SURFACE_TEXTURE_RECORDING) {
+                mHandler.removeMessages(HIDE_SURFACE_VIEW);
+                mPreviewSurfaceView.setVisibility(View.GONE);
+            }
+        }
+    }
+
+    @Override
+    public void onPauseBeforeSuper() {
+        mPaused = true;
+
+        if (mMediaRecorderRecording) {
+            // Camera will be released in onStopVideoRecording.
+            onStopVideoRecording();
+        } else {
+            closeCamera();
+            if (!effectsActive()) releaseMediaRecorder();
+        }
+        if (effectsActive()) {
+            // If the effects are active, make sure we tell the graph that the
+            // surfacetexture is not valid anymore. Disconnect the graph from
+            // the display. This should be done before releasing the surface
+            // texture.
+            mEffectsRecorder.disconnectDisplay();
+        } else {
+            // Close the file descriptor and clear the video namer only if the
+            // effects are not active. If effects are active, we need to wait
+            // till we get the callback from the Effects that the graph is done
+            // recording. That also needs a change in the stopVideoRecording()
+            // call to not call closeCamera if the effects are active, because
+            // that will close down the effects are well, thus making this if
+            // condition invalid.
+            closeVideoFileDescriptor();
+            clearVideoNamer();
+        }
+
+        releasePreviewResources();
+
+        if (mReceiver != null) {
+            mActivity.unregisterReceiver(mReceiver);
+            mReceiver = null;
+        }
+        resetScreenOn();
+
+        if (mLocationManager != null) mLocationManager.recordLocation(false);
+
+        mHandler.removeMessages(CHECK_DISPLAY_ROTATION);
+        mHandler.removeMessages(SWITCH_CAMERA);
+        mHandler.removeMessages(SWITCH_CAMERA_START_ANIMATION);
+        mPendingSwitchCameraId = -1;
+        mSwitchingCamera = false;
+        // Call onPause after stopping video recording. So the camera can be
+        // released as soon as possible.
+    }
+
+    @Override
+    public void onPauseAfterSuper() {
+    }
+
+    @Override
+    public void onUserInteraction() {
+        if (!mMediaRecorderRecording && !mActivity.isFinishing()) {
+            keepScreenOnAwhile();
+        }
+    }
+
+    @Override
+    public boolean onBackPressed() {
+        if (mPaused) return true;
+        if (mMediaRecorderRecording) {
+            onStopVideoRecording();
+            return true;
+        } else if (mPieRenderer != null && mPieRenderer.showsItems()) {
+            mPieRenderer.hide();
+            return true;
+        } else {
+            return removeTopLevelPopup();
+        }
+    }
+
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        // Do not handle any key if the activity is paused.
+        if (mPaused) {
+            return true;
+        }
+
+        switch (keyCode) {
+            case KeyEvent.KEYCODE_CAMERA:
+                if (event.getRepeatCount() == 0) {
+                    mShutterButton.performClick();
+                    return true;
+                }
+                break;
+            case KeyEvent.KEYCODE_DPAD_CENTER:
+                if (event.getRepeatCount() == 0) {
+                    mShutterButton.performClick();
+                    return true;
+                }
+                break;
+            case KeyEvent.KEYCODE_MENU:
+                if (mMediaRecorderRecording) return true;
+                break;
+        }
+        return false;
+    }
+
+    @Override
+    public boolean onKeyUp(int keyCode, KeyEvent event) {
+        switch (keyCode) {
+            case KeyEvent.KEYCODE_CAMERA:
+                mShutterButton.setPressed(false);
+                return true;
+        }
+        return false;
+    }
+
+    private boolean isVideoCaptureIntent() {
+        String action = mActivity.getIntent().getAction();
+        return (MediaStore.ACTION_VIDEO_CAPTURE.equals(action));
+    }
+
+    private void doReturnToCaller(boolean valid) {
+        Intent resultIntent = new Intent();
+        int resultCode;
+        if (valid) {
+            resultCode = Activity.RESULT_OK;
+            resultIntent.setData(mCurrentVideoUri);
+        } else {
+            resultCode = Activity.RESULT_CANCELED;
+        }
+        mActivity.setResultEx(resultCode, resultIntent);
+        mActivity.finish();
+    }
+
+    private void cleanupEmptyFile() {
+        if (mVideoFilename != null) {
+            File f = new File(mVideoFilename);
+            if (f.length() == 0 && f.delete()) {
+                Log.v(TAG, "Empty video file deleted: " + mVideoFilename);
+                mVideoFilename = null;
+            }
+        }
+    }
+
+    private void setupMediaRecorderPreviewDisplay() {
+        // Nothing to do here if using SurfaceTexture.
+        if (!ApiHelper.HAS_SURFACE_TEXTURE) {
+            mMediaRecorder.setPreviewDisplay(mPreviewSurfaceView.getHolder().getSurface());
+        } else if (!ApiHelper.HAS_SURFACE_TEXTURE_RECORDING) {
+            // We stop the preview here before unlocking the device because we
+            // need to change the SurfaceTexture to SurfaceView for preview.
+            stopPreview();
+            mActivity.mCameraDevice.setPreviewDisplayAsync(mPreviewSurfaceView.getHolder());
+            // The orientation for SurfaceTexture is different from that for
+            // SurfaceView. For SurfaceTexture we don't need to consider the
+            // display rotation. Just consider the sensor's orientation and we
+            // will set the orientation correctly when showing the texture.
+            // Gallery will handle the orientation for the preview. For
+            // SurfaceView we will have to take everything into account so the
+            // display rotation is considered.
+            mActivity.mCameraDevice.setDisplayOrientation(
+                    Util.getDisplayOrientation(mDisplayRotation, mCameraId));
+            mActivity.mCameraDevice.startPreviewAsync();
+            mPreviewing = true;
+            mMediaRecorder.setPreviewDisplay(mPreviewSurfaceView.getHolder().getSurface());
+        }
+    }
+
+    // Prepares media recorder.
+    private void initializeRecorder() {
+        Log.v(TAG, "initializeRecorder");
+        // If the mCameraDevice is null, then this activity is going to finish
+        if (mActivity.mCameraDevice == null) return;
+
+        if (!ApiHelper.HAS_SURFACE_TEXTURE_RECORDING && ApiHelper.HAS_SURFACE_TEXTURE) {
+            // Set the SurfaceView to visible so the surface gets created.
+            // surfaceCreated() is called immediately when the visibility is
+            // changed to visible. Thus, mSurfaceViewReady should become true
+            // right after calling setVisibility().
+            mPreviewSurfaceView.setVisibility(View.VISIBLE);
+            if (!mSurfaceViewReady) return;
+        }
+
+        Intent intent = mActivity.getIntent();
+        Bundle myExtras = intent.getExtras();
+
+        long requestedSizeLimit = 0;
+        closeVideoFileDescriptor();
+        if (mIsVideoCaptureIntent && myExtras != null) {
+            Uri saveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT);
+            if (saveUri != null) {
+                try {
+                    mVideoFileDescriptor =
+                            mContentResolver.openFileDescriptor(saveUri, "rw");
+                    mCurrentVideoUri = saveUri;
+                } catch (java.io.FileNotFoundException ex) {
+                    // invalid uri
+                    Log.e(TAG, ex.toString());
+                }
+            }
+            requestedSizeLimit = myExtras.getLong(MediaStore.EXTRA_SIZE_LIMIT);
+        }
+        mMediaRecorder = new MediaRecorder();
+
+        setupMediaRecorderPreviewDisplay();
+        // Unlock the camera object before passing it to media recorder.
+        mActivity.mCameraDevice.unlock();
+        mMediaRecorder.setCamera(mActivity.mCameraDevice.getCamera());
+        if (!mCaptureTimeLapse) {
+            mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
+        }
+        mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
+        mMediaRecorder.setProfile(mProfile);
+        mMediaRecorder.setMaxDuration(mMaxVideoDurationInMs);
+        if (mCaptureTimeLapse) {
+            double fps = 1000 / (double) mTimeBetweenTimeLapseFrameCaptureMs;
+            setCaptureRate(mMediaRecorder, fps);
+        }
+
+        setRecordLocation();
+
+        // Set output file.
+        // Try Uri in the intent first. If it doesn't exist, use our own
+        // instead.
+        if (mVideoFileDescriptor != null) {
+            mMediaRecorder.setOutputFile(mVideoFileDescriptor.getFileDescriptor());
+        } else {
+            generateVideoFilename(mProfile.fileFormat);
+            mMediaRecorder.setOutputFile(mVideoFilename);
+        }
+
+        // Set maximum file size.
+        long maxFileSize = mActivity.getStorageSpace() - Storage.LOW_STORAGE_THRESHOLD;
+        if (requestedSizeLimit > 0 && requestedSizeLimit < maxFileSize) {
+            maxFileSize = requestedSizeLimit;
+        }
+
+        try {
+            mMediaRecorder.setMaxFileSize(maxFileSize);
+        } catch (RuntimeException exception) {
+            // We are going to ignore failure of setMaxFileSize here, as
+            // a) The composer selected may simply not support it, or
+            // b) The underlying media framework may not handle 64-bit range
+            // on the size restriction.
+        }
+
+        // See android.hardware.Camera.Parameters.setRotation for
+        // documentation.
+        // Note that mOrientation here is the device orientation, which is the opposite of
+        // what activity.getWindowManager().getDefaultDisplay().getRotation() would return,
+        // which is the orientation the graphics need to rotate in order to render correctly.
+        int rotation = 0;
+        if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) {
+            CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId];
+            if (info.facing == CameraInfo.CAMERA_FACING_FRONT) {
+                rotation = (info.orientation - mOrientation + 360) % 360;
+            } else {  // back-facing camera
+                rotation = (info.orientation + mOrientation) % 360;
+            }
+        }
+        mMediaRecorder.setOrientationHint(rotation);
+
+        try {
+            mMediaRecorder.prepare();
+        } catch (IOException e) {
+            Log.e(TAG, "prepare failed for " + mVideoFilename, e);
+            releaseMediaRecorder();
+            throw new RuntimeException(e);
+        }
+
+        mMediaRecorder.setOnErrorListener(this);
+        mMediaRecorder.setOnInfoListener(this);
+    }
+
+    @TargetApi(ApiHelper.VERSION_CODES.HONEYCOMB)
+    private static void setCaptureRate(MediaRecorder recorder, double fps) {
+        recorder.setCaptureRate(fps);
+    }
+
+    @TargetApi(ApiHelper.VERSION_CODES.ICE_CREAM_SANDWICH)
+    private void setRecordLocation() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
+            Location loc = mLocationManager.getCurrentLocation();
+            if (loc != null) {
+                mMediaRecorder.setLocation((float) loc.getLatitude(),
+                        (float) loc.getLongitude());
+            }
+        }
+    }
+
+    private void initializeEffectsPreview() {
+        Log.v(TAG, "initializeEffectsPreview");
+        // If the mCameraDevice is null, then this activity is going to finish
+        if (mActivity.mCameraDevice == null) return;
+
+        boolean inLandscape = (mActivity.getResources().getConfiguration().orientation
+                == Configuration.ORIENTATION_LANDSCAPE);
+
+        CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId];
+
+        mEffectsDisplayResult = false;
+        mEffectsRecorder = new EffectsRecorder(mActivity);
+
+        // TODO: Confirm none of the following need to go to initializeEffectsRecording()
+        // and none of these change even when the preview is not refreshed.
+        mEffectsRecorder.setCameraDisplayOrientation(mCameraDisplayOrientation);
+        mEffectsRecorder.setCamera(mActivity.mCameraDevice);
+        mEffectsRecorder.setCameraFacing(info.facing);
+        mEffectsRecorder.setProfile(mProfile);
+        mEffectsRecorder.setEffectsListener(this);
+        mEffectsRecorder.setOnInfoListener(this);
+        mEffectsRecorder.setOnErrorListener(this);
+
+        // The input of effects recorder is affected by
+        // android.hardware.Camera.setDisplayOrientation. Its value only
+        // compensates the camera orientation (no Display.getRotation). So the
+        // orientation hint here should only consider sensor orientation.
+        int orientation = 0;
+        if (mOrientation != OrientationEventListener.ORIENTATION_UNKNOWN) {
+            orientation = mOrientation;
+        }
+        mEffectsRecorder.setOrientationHint(orientation);
+
+        CameraScreenNail screenNail = (CameraScreenNail) mActivity.mCameraScreenNail;
+        mEffectsRecorder.setPreviewSurfaceTexture(screenNail.getSurfaceTexture(),
+                screenNail.getWidth(), screenNail.getHeight());
+
+        if (mEffectType == EffectsRecorder.EFFECT_BACKDROPPER &&
+                ((String) mEffectParameter).equals(EFFECT_BG_FROM_GALLERY)) {
+            mEffectsRecorder.setEffect(mEffectType, mEffectUriFromGallery);
+        } else {
+            mEffectsRecorder.setEffect(mEffectType, mEffectParameter);
+        }
+    }
+
+    private void initializeEffectsRecording() {
+        Log.v(TAG, "initializeEffectsRecording");
+
+        Intent intent = mActivity.getIntent();
+        Bundle myExtras = intent.getExtras();
+
+        long requestedSizeLimit = 0;
+        closeVideoFileDescriptor();
+        if (mIsVideoCaptureIntent && myExtras != null) {
+            Uri saveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT);
+            if (saveUri != null) {
+                try {
+                    mVideoFileDescriptor =
+                            mContentResolver.openFileDescriptor(saveUri, "rw");
+                    mCurrentVideoUri = saveUri;
+                } catch (java.io.FileNotFoundException ex) {
+                    // invalid uri
+                    Log.e(TAG, ex.toString());
+                }
+            }
+            requestedSizeLimit = myExtras.getLong(MediaStore.EXTRA_SIZE_LIMIT);
+        }
+
+        mEffectsRecorder.setProfile(mProfile);
+        // important to set the capture rate to zero if not timelapsed, since the
+        // effectsrecorder object does not get created again for each recording
+        // session
+        if (mCaptureTimeLapse) {
+            mEffectsRecorder.setCaptureRate((1000 / (double) mTimeBetweenTimeLapseFrameCaptureMs));
+        } else {
+            mEffectsRecorder.setCaptureRate(0);
+        }
+
+        // Set output file
+        if (mVideoFileDescriptor != null) {
+            mEffectsRecorder.setOutputFile(mVideoFileDescriptor.getFileDescriptor());
+        } else {
+            generateVideoFilename(mProfile.fileFormat);
+            mEffectsRecorder.setOutputFile(mVideoFilename);
+        }
+
+        // Set maximum file size.
+        long maxFileSize = mActivity.getStorageSpace() - Storage.LOW_STORAGE_THRESHOLD;
+        if (requestedSizeLimit > 0 && requestedSizeLimit < maxFileSize) {
+            maxFileSize = requestedSizeLimit;
+        }
+        mEffectsRecorder.setMaxFileSize(maxFileSize);
+        mEffectsRecorder.setMaxDuration(mMaxVideoDurationInMs);
+    }
+
+
+    private void releaseMediaRecorder() {
+        Log.v(TAG, "Releasing media recorder.");
+        if (mMediaRecorder != null) {
+            cleanupEmptyFile();
+            mMediaRecorder.reset();
+            mMediaRecorder.release();
+            mMediaRecorder = null;
+        }
+        mVideoFilename = null;
+    }
+
+    private void releaseEffectsRecorder() {
+        Log.v(TAG, "Releasing effects recorder.");
+        if (mEffectsRecorder != null) {
+            cleanupEmptyFile();
+            mEffectsRecorder.release();
+            mEffectsRecorder = null;
+        }
+        mEffectType = EffectsRecorder.EFFECT_NONE;
+        mVideoFilename = null;
+    }
+
+    private void generateVideoFilename(int outputFileFormat) {
+        long dateTaken = System.currentTimeMillis();
+        String title = createName(dateTaken);
+        // Used when emailing.
+        String filename = title + convertOutputFormatToFileExt(outputFileFormat);
+        String mime = convertOutputFormatToMimeType(outputFileFormat);
+        String path = Storage.DIRECTORY + '/' + filename;
+        String tmpPath = path + ".tmp";
+        mCurrentVideoValues = new ContentValues(7);
+        mCurrentVideoValues.put(Video.Media.TITLE, title);
+        mCurrentVideoValues.put(Video.Media.DISPLAY_NAME, filename);
+        mCurrentVideoValues.put(Video.Media.DATE_TAKEN, dateTaken);
+        mCurrentVideoValues.put(Video.Media.MIME_TYPE, mime);
+        mCurrentVideoValues.put(Video.Media.DATA, path);
+        mCurrentVideoValues.put(Video.Media.RESOLUTION,
+                Integer.toString(mProfile.videoFrameWidth) + "x" +
+                Integer.toString(mProfile.videoFrameHeight));
+        Location loc = mLocationManager.getCurrentLocation();
+        if (loc != null) {
+            mCurrentVideoValues.put(Video.Media.LATITUDE, loc.getLatitude());
+            mCurrentVideoValues.put(Video.Media.LONGITUDE, loc.getLongitude());
+        }
+        mVideoNamer.prepareUri(mContentResolver, mCurrentVideoValues);
+        mVideoFilename = tmpPath;
+        Log.v(TAG, "New video filename: " + mVideoFilename);
+    }
+
+    private boolean addVideoToMediaStore() {
+        boolean fail = false;
+        if (mVideoFileDescriptor == null) {
+            mCurrentVideoValues.put(Video.Media.SIZE,
+                    new File(mCurrentVideoFilename).length());
+            long duration = SystemClock.uptimeMillis() - mRecordingStartTime;
+            if (duration > 0) {
+                if (mCaptureTimeLapse) {
+                    duration = getTimeLapseVideoLength(duration);
+                }
+                mCurrentVideoValues.put(Video.Media.DURATION, duration);
+            } else {
+                Log.w(TAG, "Video duration <= 0 : " + duration);
+            }
+            try {
+                mCurrentVideoUri = mVideoNamer.getUri();
+                mActivity.addSecureAlbumItemIfNeeded(true, mCurrentVideoUri);
+
+                // Rename the video file to the final name. This avoids other
+                // apps reading incomplete data.  We need to do it after the
+                // above mVideoNamer.getUri() call, so we are certain that the
+                // previous insert to MediaProvider is completed.
+                String finalName = mCurrentVideoValues.getAsString(
+                        Video.Media.DATA);
+                if (new File(mCurrentVideoFilename).renameTo(new File(finalName))) {
+                    mCurrentVideoFilename = finalName;
+                }
+
+                mContentResolver.update(mCurrentVideoUri, mCurrentVideoValues
+                        , null, null);
+                mActivity.sendBroadcast(new Intent(Util.ACTION_NEW_VIDEO,
+                        mCurrentVideoUri));
+            } catch (Exception e) {
+                // We failed to insert into the database. This can happen if
+                // the SD card is unmounted.
+                Log.e(TAG, "failed to add video to media store", e);
+                mCurrentVideoUri = null;
+                mCurrentVideoFilename = null;
+                fail = true;
+            } finally {
+                Log.v(TAG, "Current video URI: " + mCurrentVideoUri);
+            }
+        }
+        mCurrentVideoValues = null;
+        return fail;
+    }
+
+    private void deleteCurrentVideo() {
+        // Remove the video and the uri if the uri is not passed in by intent.
+        if (mCurrentVideoFilename != null) {
+            deleteVideoFile(mCurrentVideoFilename);
+            mCurrentVideoFilename = null;
+            if (mCurrentVideoUri != null) {
+                mContentResolver.delete(mCurrentVideoUri, null, null);
+                mCurrentVideoUri = null;
+            }
+        }
+        mActivity.updateStorageSpaceAndHint();
+    }
+
+    private void deleteVideoFile(String fileName) {
+        Log.v(TAG, "Deleting video " + fileName);
+        File f = new File(fileName);
+        if (!f.delete()) {
+            Log.v(TAG, "Could not delete " + fileName);
+        }
+    }
+
+    private PreferenceGroup filterPreferenceScreenByIntent(
+            PreferenceGroup screen) {
+        Intent intent = mActivity.getIntent();
+        if (intent.hasExtra(MediaStore.EXTRA_VIDEO_QUALITY)) {
+            CameraSettings.removePreferenceFromScreen(screen,
+                    CameraSettings.KEY_VIDEO_QUALITY);
+        }
+
+        if (intent.hasExtra(MediaStore.EXTRA_DURATION_LIMIT)) {
+            CameraSettings.removePreferenceFromScreen(screen,
+                    CameraSettings.KEY_VIDEO_QUALITY);
+        }
+        return screen;
+    }
+
+    // from MediaRecorder.OnErrorListener
+    @Override
+    public void onError(MediaRecorder mr, int what, int extra) {
+        Log.e(TAG, "MediaRecorder error. what=" + what + ". extra=" + extra);
+        if (what == MediaRecorder.MEDIA_RECORDER_ERROR_UNKNOWN) {
+            // We may have run out of space on the sdcard.
+            stopVideoRecording();
+            mActivity.updateStorageSpaceAndHint();
+        }
+    }
+
+    // from MediaRecorder.OnInfoListener
+    @Override
+    public void onInfo(MediaRecorder mr, int what, int extra) {
+        if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED) {
+            if (mMediaRecorderRecording) onStopVideoRecording();
+        } else if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED) {
+            if (mMediaRecorderRecording) onStopVideoRecording();
+
+            // Show the toast.
+            Toast.makeText(mActivity, R.string.video_reach_size_limit,
+                    Toast.LENGTH_LONG).show();
+        }
+    }
+
+    /*
+     * Make sure we're not recording music playing in the background, ask the
+     * MediaPlaybackService to pause playback.
+     */
+    private void pauseAudioPlayback() {
+        // Shamelessly copied from MediaPlaybackService.java, which
+        // should be public, but isn't.
+        Intent i = new Intent("com.android.music.musicservicecommand");
+        i.putExtra("command", "pause");
+
+        mActivity.sendBroadcast(i);
+    }
+
+    // For testing.
+    public boolean isRecording() {
+        return mMediaRecorderRecording;
+    }
+
+    private void startVideoRecording() {
+        Log.v(TAG, "startVideoRecording");
+        mActivity.setSwipingEnabled(false);
+
+        mActivity.updateStorageSpaceAndHint();
+        if (mActivity.getStorageSpace() <= Storage.LOW_STORAGE_THRESHOLD) {
+            Log.v(TAG, "Storage issue, ignore the start request");
+            return;
+        }
+
+        mCurrentVideoUri = null;
+        if (effectsActive()) {
+            initializeEffectsRecording();
+            if (mEffectsRecorder == null) {
+                Log.e(TAG, "Fail to initialize effect recorder");
+                return;
+            }
+        } else {
+            initializeRecorder();
+            if (mMediaRecorder == null) {
+                Log.e(TAG, "Fail to initialize media recorder");
+                return;
+            }
+        }
+
+        pauseAudioPlayback();
+
+        if (effectsActive()) {
+            try {
+                mEffectsRecorder.startRecording();
+            } catch (RuntimeException e) {
+                Log.e(TAG, "Could not start effects recorder. ", e);
+                releaseEffectsRecorder();
+                return;
+            }
+        } else {
+            try {
+                mMediaRecorder.start(); // Recording is now started
+            } catch (RuntimeException e) {
+                Log.e(TAG, "Could not start media recorder. ", e);
+                releaseMediaRecorder();
+                // If start fails, frameworks will not lock the camera for us.
+                mActivity.mCameraDevice.lock();
+                return;
+            }
+        }
+
+        // Make sure the video recording has started before announcing
+        // this in accessibility.
+        AccessibilityUtils.makeAnnouncement(mShutterButton,
+                mActivity.getString(R.string.video_recording_started));
+
+        // The parameters may have been changed by MediaRecorder upon starting
+        // recording. We need to alter the parameters if we support camcorder
+        // zoom. To reduce latency when setting the parameters during zoom, we
+        // update mParameters here once.
+        if (ApiHelper.HAS_ZOOM_WHEN_RECORDING) {
+            mParameters = mActivity.mCameraDevice.getParameters();
+        }
+
+        enableCameraControls(false);
+
+        mMediaRecorderRecording = true;
+        mActivity.getOrientationManager().lockOrientation();
+        mRecordingStartTime = SystemClock.uptimeMillis();
+        showRecordingUI(true);
+
+        updateRecordingTime();
+        keepScreenOn();
+    }
+
+    private void showRecordingUI(boolean recording) {
+        mMenu.setVisibility(recording ? View.GONE : View.VISIBLE);
+        mOnScreenIndicators.setVisibility(recording ? View.GONE : View.VISIBLE);
+        if (recording) {
+            mShutterButton.setImageResource(R.drawable.btn_shutter_video_recording);
+            mActivity.hideSwitcher();
+            mRecordingTimeView.setText("");
+            mRecordingTimeView.setVisibility(View.VISIBLE);
+            if (mReviewControl != null) mReviewControl.setVisibility(View.GONE);
+            // The camera is not allowed to be accessed in older api levels during
+            // recording. It is therefore necessary to hide the zoom UI on older
+            // platforms.
+            // See the documentation of android.media.MediaRecorder.start() for
+            // further explanation.
+            if (!ApiHelper.HAS_ZOOM_WHEN_RECORDING
+                    && mParameters.isZoomSupported()) {
+                // TODO: disable zoom UI here.
+            }
+        } else {
+            mShutterButton.setImageResource(R.drawable.btn_new_shutter_video);
+            mActivity.showSwitcher();
+            mRecordingTimeView.setVisibility(View.GONE);
+            if (mReviewControl != null) mReviewControl.setVisibility(View.VISIBLE);
+            if (!ApiHelper.HAS_ZOOM_WHEN_RECORDING
+                    && mParameters.isZoomSupported()) {
+                // TODO: enable zoom UI here.
+            }
+        }
+    }
+
+    private void showAlert() {
+        Bitmap bitmap = null;
+        if (mVideoFileDescriptor != null) {
+            bitmap = Thumbnail.createVideoThumbnailBitmap(mVideoFileDescriptor.getFileDescriptor(),
+                    mPreviewFrameLayout.getWidth());
+        } else if (mCurrentVideoFilename != null) {
+            bitmap = Thumbnail.createVideoThumbnailBitmap(mCurrentVideoFilename,
+                    mPreviewFrameLayout.getWidth());
+        }
+        if (bitmap != null) {
+            // MetadataRetriever already rotates the thumbnail. We should rotate
+            // it to match the UI orientation (and mirror if it is front-facing camera).
+            CameraInfo[] info = CameraHolder.instance().getCameraInfo();
+            boolean mirror = (info[mCameraId].facing == CameraInfo.CAMERA_FACING_FRONT);
+            bitmap = Util.rotateAndMirror(bitmap, 0, mirror);
+            mReviewImage.setImageBitmap(bitmap);
+            mReviewImage.setVisibility(View.VISIBLE);
+        }
+
+        Util.fadeOut(mShutterButton);
+
+        Util.fadeIn((View) mReviewDoneButton);
+        Util.fadeIn(mReviewPlayButton);
+        mMenu.setVisibility(View.GONE);
+        mOnScreenIndicators.setVisibility(View.GONE);
+        enableCameraControls(false);
+
+        showTimeLapseUI(false);
+    }
+
+    private void hideAlert() {
+        mReviewImage.setVisibility(View.GONE);
+        mShutterButton.setEnabled(true);
+        mMenu.setVisibility(View.VISIBLE);
+        mOnScreenIndicators.setVisibility(View.VISIBLE);
+        enableCameraControls(true);
+
+        Util.fadeOut((View) mReviewDoneButton);
+        Util.fadeOut(mReviewPlayButton);
+
+        Util.fadeIn(mShutterButton);
+
+        if (mCaptureTimeLapse) {
+            showTimeLapseUI(true);
+        }
+    }
+
+    private boolean stopVideoRecording() {
+        Log.v(TAG, "stopVideoRecording");
+        mActivity.setSwipingEnabled(true);
+        mActivity.showSwitcher();
+
+        boolean fail = false;
+        if (mMediaRecorderRecording) {
+            boolean shouldAddToMediaStoreNow = false;
+
+            try {
+                if (effectsActive()) {
+                    // This is asynchronous, so we can't add to media store now because thumbnail
+                    // may not be ready. In such case addVideoToMediaStore is called later
+                    // through a callback from the MediaEncoderFilter to EffectsRecorder,
+                    // and then to the VideoModule.
+                    mEffectsRecorder.stopRecording();
+                } else {
+                    mMediaRecorder.setOnErrorListener(null);
+                    mMediaRecorder.setOnInfoListener(null);
+                    mMediaRecorder.stop();
+                    shouldAddToMediaStoreNow = true;
+                }
+                mCurrentVideoFilename = mVideoFilename;
+                Log.v(TAG, "stopVideoRecording: Setting current video filename: "
+                        + mCurrentVideoFilename);
+                AccessibilityUtils.makeAnnouncement(mShutterButton,
+                        mActivity.getString(R.string.video_recording_stopped));
+            } catch (RuntimeException e) {
+                Log.e(TAG, "stop fail",  e);
+                if (mVideoFilename != null) deleteVideoFile(mVideoFilename);
+                fail = true;
+            }
+            mMediaRecorderRecording = false;
+            mActivity.getOrientationManager().unlockOrientation();
+
+            // If the activity is paused, this means activity is interrupted
+            // during recording. Release the camera as soon as possible because
+            // face unlock or other applications may need to use the camera.
+            // However, if the effects are active, then we can only release the
+            // camera and cannot release the effects recorder since that will
+            // stop the graph. It is possible to separate out the Camera release
+            // part and the effects release part. However, the effects recorder
+            // does hold on to the camera, hence, it needs to be "disconnected"
+            // from the camera in the closeCamera call.
+            if (mPaused) {
+                // Closing only the camera part if effects active. Effects will
+                // be closed in the callback from effects.
+                boolean closeEffects = !effectsActive();
+                closeCamera(closeEffects);
+            }
+
+            showRecordingUI(false);
+            if (!mIsVideoCaptureIntent) {
+                enableCameraControls(true);
+            }
+            // The orientation was fixed during video recording. Now make it
+            // reflect the device orientation as video recording is stopped.
+            setOrientationIndicator(0, true);
+            keepScreenOnAwhile();
+            if (shouldAddToMediaStoreNow) {
+                if (addVideoToMediaStore()) fail = true;
+            }
+        }
+        // always release media recorder if no effects running
+        if (!effectsActive()) {
+            releaseMediaRecorder();
+            if (!mPaused) {
+                mActivity.mCameraDevice.lock();
+                if (ApiHelper.HAS_SURFACE_TEXTURE &&
+                    !ApiHelper.HAS_SURFACE_TEXTURE_RECORDING) {
+                    stopPreview();
+                    // Switch back to use SurfaceTexture for preview.
+                    ((CameraScreenNail) mActivity.mCameraScreenNail).setOneTimeOnFrameDrawnListener(
+                            mFrameDrawnListener);
+                    startPreview();
+                }
+            }
+        }
+        // Update the parameters here because the parameters might have been altered
+        // by MediaRecorder.
+        if (!mPaused) mParameters = mActivity.mCameraDevice.getParameters();
+        return fail;
+    }
+
+    private void resetScreenOn() {
+        mHandler.removeMessages(CLEAR_SCREEN_DELAY);
+        mActivity.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+    }
+
+    private void keepScreenOnAwhile() {
+        mHandler.removeMessages(CLEAR_SCREEN_DELAY);
+        mActivity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+        mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY);
+    }
+
+    private void keepScreenOn() {
+        mHandler.removeMessages(CLEAR_SCREEN_DELAY);
+        mActivity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+    }
+
+    private static String millisecondToTimeString(long milliSeconds, boolean displayCentiSeconds) {
+        long seconds = milliSeconds / 1000; // round down to compute seconds
+        long minutes = seconds / 60;
+        long hours = minutes / 60;
+        long remainderMinutes = minutes - (hours * 60);
+        long remainderSeconds = seconds - (minutes * 60);
+
+        StringBuilder timeStringBuilder = new StringBuilder();
+
+        // Hours
+        if (hours > 0) {
+            if (hours < 10) {
+                timeStringBuilder.append('0');
+            }
+            timeStringBuilder.append(hours);
+
+            timeStringBuilder.append(':');
+        }
+
+        // Minutes
+        if (remainderMinutes < 10) {
+            timeStringBuilder.append('0');
+        }
+        timeStringBuilder.append(remainderMinutes);
+        timeStringBuilder.append(':');
+
+        // Seconds
+        if (remainderSeconds < 10) {
+            timeStringBuilder.append('0');
+        }
+        timeStringBuilder.append(remainderSeconds);
+
+        // Centi seconds
+        if (displayCentiSeconds) {
+            timeStringBuilder.append('.');
+            long remainderCentiSeconds = (milliSeconds - seconds * 1000) / 10;
+            if (remainderCentiSeconds < 10) {
+                timeStringBuilder.append('0');
+            }
+            timeStringBuilder.append(remainderCentiSeconds);
+        }
+
+        return timeStringBuilder.toString();
+    }
+
+    private long getTimeLapseVideoLength(long deltaMs) {
+        // For better approximation calculate fractional number of frames captured.
+        // This will update the video time at a higher resolution.
+        double numberOfFrames = (double) deltaMs / mTimeBetweenTimeLapseFrameCaptureMs;
+        return (long) (numberOfFrames / mProfile.videoFrameRate * 1000);
+    }
+
+    private void updateRecordingTime() {
+        if (!mMediaRecorderRecording) {
+            return;
+        }
+        long now = SystemClock.uptimeMillis();
+        long delta = now - mRecordingStartTime;
+
+        // Starting a minute before reaching the max duration
+        // limit, we'll countdown the remaining time instead.
+        boolean countdownRemainingTime = (mMaxVideoDurationInMs != 0
+                && delta >= mMaxVideoDurationInMs - 60000);
+
+        long deltaAdjusted = delta;
+        if (countdownRemainingTime) {
+            deltaAdjusted = Math.max(0, mMaxVideoDurationInMs - deltaAdjusted) + 999;
+        }
+        String text;
+
+        long targetNextUpdateDelay;
+        if (!mCaptureTimeLapse) {
+            text = millisecondToTimeString(deltaAdjusted, false);
+            targetNextUpdateDelay = 1000;
+        } else {
+            // The length of time lapse video is different from the length
+            // of the actual wall clock time elapsed. Display the video length
+            // only in format hh:mm:ss.dd, where dd are the centi seconds.
+            text = millisecondToTimeString(getTimeLapseVideoLength(delta), true);
+            targetNextUpdateDelay = mTimeBetweenTimeLapseFrameCaptureMs;
+        }
+
+        mRecordingTimeView.setText(text);
+
+        if (mRecordingTimeCountsDown != countdownRemainingTime) {
+            // Avoid setting the color on every update, do it only
+            // when it needs changing.
+            mRecordingTimeCountsDown = countdownRemainingTime;
+
+            int color = mActivity.getResources().getColor(countdownRemainingTime
+                    ? R.color.recording_time_remaining_text
+                    : R.color.recording_time_elapsed_text);
+
+            mRecordingTimeView.setTextColor(color);
+        }
+
+        long actualNextUpdateDelay = targetNextUpdateDelay - (delta % targetNextUpdateDelay);
+        mHandler.sendEmptyMessageDelayed(
+                UPDATE_RECORD_TIME, actualNextUpdateDelay);
+    }
+
+    private static boolean isSupported(String value, List<String> supported) {
+        return supported == null ? false : supported.indexOf(value) >= 0;
+    }
+
+    @SuppressWarnings("deprecation")
+    private void setCameraParameters() {
+        mParameters.setPreviewSize(mDesiredPreviewWidth, mDesiredPreviewHeight);
+        mParameters.setPreviewFrameRate(mProfile.videoFrameRate);
+
+        // Set flash mode.
+        String flashMode;
+        if (mActivity.mShowCameraAppView) {
+            flashMode = mPreferences.getString(
+                    CameraSettings.KEY_VIDEOCAMERA_FLASH_MODE,
+                    mActivity.getString(R.string.pref_camera_video_flashmode_default));
+        } else {
+            flashMode = Parameters.FLASH_MODE_OFF;
+        }
+        List<String> supportedFlash = mParameters.getSupportedFlashModes();
+        if (isSupported(flashMode, supportedFlash)) {
+            mParameters.setFlashMode(flashMode);
+        } else {
+            flashMode = mParameters.getFlashMode();
+            if (flashMode == null) {
+                flashMode = mActivity.getString(
+                        R.string.pref_camera_flashmode_no_flash);
+            }
+        }
+
+        // Set white balance parameter.
+        String whiteBalance = mPreferences.getString(
+                CameraSettings.KEY_WHITE_BALANCE,
+                mActivity.getString(R.string.pref_camera_whitebalance_default));
+        if (isSupported(whiteBalance,
+                mParameters.getSupportedWhiteBalance())) {
+            mParameters.setWhiteBalance(whiteBalance);
+        } else {
+            whiteBalance = mParameters.getWhiteBalance();
+            if (whiteBalance == null) {
+                whiteBalance = Parameters.WHITE_BALANCE_AUTO;
+            }
+        }
+
+        // Set zoom.
+        if (mParameters.isZoomSupported()) {
+            mParameters.setZoom(mZoomValue);
+        }
+
+        // Set continuous autofocus.
+        List<String> supportedFocus = mParameters.getSupportedFocusModes();
+        if (isSupported(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO, supportedFocus)) {
+            mParameters.setFocusMode(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO);
+        }
+
+        mParameters.set(Util.RECORDING_HINT, Util.TRUE);
+
+        // Enable video stabilization. Convenience methods not available in API
+        // level <= 14
+        String vstabSupported = mParameters.get("video-stabilization-supported");
+        if ("true".equals(vstabSupported)) {
+            mParameters.set("video-stabilization", "true");
+        }
+
+        // Set picture size.
+        // The logic here is different from the logic in still-mode camera.
+        // There we determine the preview size based on the picture size, but
+        // here we determine the picture size based on the preview size.
+        List<Size> supported = mParameters.getSupportedPictureSizes();
+        Size optimalSize = Util.getOptimalVideoSnapshotPictureSize(supported,
+                (double) mDesiredPreviewWidth / mDesiredPreviewHeight);
+        Size original = mParameters.getPictureSize();
+        if (!original.equals(optimalSize)) {
+            mParameters.setPictureSize(optimalSize.width, optimalSize.height);
+        }
+        Log.v(TAG, "Video snapshot size is " + optimalSize.width + "x" +
+                optimalSize.height);
+
+        // Set JPEG quality.
+        int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId,
+                CameraProfile.QUALITY_HIGH);
+        mParameters.setJpegQuality(jpegQuality);
+
+        mActivity.mCameraDevice.setParameters(mParameters);
+        // Keep preview size up to date.
+        mParameters = mActivity.mCameraDevice.getParameters();
+
+        updateCameraScreenNailSize(mDesiredPreviewWidth, mDesiredPreviewHeight);
+    }
+
+    private void updateCameraScreenNailSize(int width, int height) {
+        if (!ApiHelper.HAS_SURFACE_TEXTURE) return;
+
+        if (mCameraDisplayOrientation % 180 != 0) {
+            int tmp = width;
+            width = height;
+            height = tmp;
+        }
+
+        CameraScreenNail screenNail = (CameraScreenNail) mActivity.mCameraScreenNail;
+        int oldWidth = screenNail.getWidth();
+        int oldHeight = screenNail.getHeight();
+
+        if (oldWidth != width || oldHeight != height) {
+            screenNail.setSize(width, height);
+            screenNail.enableAspectRatioClamping();
+            mActivity.notifyScreenNailChanged();
+        }
+
+        if (screenNail.getSurfaceTexture() == null) {
+            screenNail.acquireSurfaceTexture();
+        }
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        switch (requestCode) {
+            case REQUEST_EFFECT_BACKDROPPER:
+                if (resultCode == Activity.RESULT_OK) {
+                    // onActivityResult() runs before onResume(), so this parameter will be
+                    // seen by startPreview from onResume()
+                    mEffectUriFromGallery = data.getData().toString();
+                    Log.v(TAG, "Received URI from gallery: " + mEffectUriFromGallery);
+                    mResetEffect = false;
+                } else {
+                    mEffectUriFromGallery = null;
+                    Log.w(TAG, "No URI from gallery");
+                    mResetEffect = true;
+                }
+                break;
+        }
+    }
+
+    @Override
+    public void onEffectsUpdate(int effectId, int effectMsg) {
+        Log.v(TAG, "onEffectsUpdate. Effect Message = " + effectMsg);
+        if (effectMsg == EffectsRecorder.EFFECT_MSG_EFFECTS_STOPPED) {
+            // Effects have shut down. Hide learning message if any,
+            // and restart regular preview.
+            mBgLearningMessageFrame.setVisibility(View.GONE);
+            checkQualityAndStartPreview();
+        } else if (effectMsg == EffectsRecorder.EFFECT_MSG_RECORDING_DONE) {
+            // This follows the codepath from onStopVideoRecording.
+            if (mEffectsDisplayResult && !addVideoToMediaStore()) {
+                if (mIsVideoCaptureIntent) {
+                    if (mQuickCapture) {
+                        doReturnToCaller(true);
+                    } else {
+                        showAlert();
+                    }
+                }
+            }
+            mEffectsDisplayResult = false;
+            // In onPause, these were not called if the effects were active. We
+            // had to wait till the effects recording is complete to do this.
+            if (mPaused) {
+                closeVideoFileDescriptor();
+                clearVideoNamer();
+            }
+        } else if (effectMsg == EffectsRecorder.EFFECT_MSG_PREVIEW_RUNNING) {
+            // Enable the shutter button once the preview is complete.
+            mShutterButton.setEnabled(true);
+        } else if (effectId == EffectsRecorder.EFFECT_BACKDROPPER) {
+            switch (effectMsg) {
+                case EffectsRecorder.EFFECT_MSG_STARTED_LEARNING:
+                    mBgLearningMessageFrame.setVisibility(View.VISIBLE);
+                    break;
+                case EffectsRecorder.EFFECT_MSG_DONE_LEARNING:
+                case EffectsRecorder.EFFECT_MSG_SWITCHING_EFFECT:
+                    mBgLearningMessageFrame.setVisibility(View.GONE);
+                    break;
+            }
+        }
+        // In onPause, this was not called if the effects were active. We had to
+        // wait till the effects completed to do this.
+        if (mPaused) {
+            Log.v(TAG, "OnEffectsUpdate: closing effects if activity paused");
+            closeEffects();
+        }
+    }
+
+    public void onCancelBgTraining(View v) {
+        // Remove training message
+        mBgLearningMessageFrame.setVisibility(View.GONE);
+        // Write default effect out to shared prefs
+        writeDefaultEffectToPrefs();
+        // Tell VideoCamer to re-init based on new shared pref values.
+        onSharedPreferenceChanged();
+    }
+
+    @Override
+    public synchronized void onEffectsError(Exception exception, String fileName) {
+        // TODO: Eventually we may want to show the user an error dialog, and then restart the
+        // camera and encoder gracefully. For now, we just delete the file and bail out.
+        if (fileName != null && new File(fileName).exists()) {
+            deleteVideoFile(fileName);
+        }
+        try {
+            if (Class.forName("android.filterpacks.videosink.MediaRecorderStopException")
+                    .isInstance(exception)) {
+                Log.w(TAG, "Problem recoding video file. Removing incomplete file.");
+                return;
+            }
+        } catch (ClassNotFoundException ex) {
+            Log.w(TAG, ex);
+        }
+        throw new RuntimeException("Error during recording!", exception);
+    }
+
+    private void initializeControlByIntent() {
+        mBlocker = mRootView.findViewById(R.id.blocker);
+        mMenu = mRootView.findViewById(R.id.menu);
+        mMenu.setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                if (mPieRenderer != null) {
+                    mPieRenderer.showInCenter();
+                }
+            }
+        });
+        mOnScreenIndicators = mRootView.findViewById(R.id.on_screen_indicators);
+        mFlashIndicator = (ImageView) mRootView.findViewById(R.id.menu_flash_indicator);
+        if (mIsVideoCaptureIntent) {
+            mActivity.hideSwitcher();
+            // Cannot use RotateImageView for "done" and "cancel" button because
+            // the tablet layout uses RotateLayout, which cannot be cast to
+            // RotateImageView.
+            mReviewDoneButton = (Rotatable) mRootView.findViewById(R.id.btn_done);
+            mReviewCancelButton = (Rotatable) mRootView.findViewById(R.id.btn_cancel);
+            mReviewPlayButton = (RotateImageView) mRootView.findViewById(R.id.btn_play);
+
+            ((View) mReviewCancelButton).setVisibility(View.VISIBLE);
+
+            ((View) mReviewDoneButton).setOnClickListener(new OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    onReviewDoneClicked(v);
+                }
+            });
+            ((View) mReviewCancelButton).setOnClickListener(new OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    onReviewCancelClicked(v);
+                }
+            });
+
+            ((View) mReviewPlayButton).setOnClickListener(new OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    onReviewPlayClicked(v);
+                }
+            });
+
+
+            // Not grayed out upon disabled, to make the follow-up fade-out
+            // effect look smooth. Note that the review done button in tablet
+            // layout is not a TwoStateImageView.
+            if (mReviewDoneButton instanceof TwoStateImageView) {
+                ((TwoStateImageView) mReviewDoneButton).enableFilter(false);
+            }
+        }
+    }
+
+    private void initializeMiscControls() {
+        mPreviewFrameLayout = (PreviewFrameLayout) mRootView.findViewById(R.id.frame);
+        mPreviewFrameLayout.setOnLayoutChangeListener(mActivity);
+        mReviewImage = (ImageView) mRootView.findViewById(R.id.review_image);
+
+        mShutterButton = mActivity.getShutterButton();
+        mShutterButton.setImageResource(R.drawable.btn_new_shutter_video);
+        mShutterButton.setOnShutterButtonListener(this);
+        mShutterButton.requestFocus();
+
+        // Disable the shutter button if effects are ON since it might take
+        // a little more time for the effects preview to be ready. We do not
+        // want to allow recording before that happens. The shutter button
+        // will be enabled when we get the message from effectsrecorder that
+        // the preview is running. This becomes critical when the camera is
+        // swapped.
+        if (effectsActive()) {
+            mShutterButton.setEnabled(false);
+        }
+
+        mRecordingTimeView = (TextView) mRootView.findViewById(R.id.recording_time);
+        mRecordingTimeRect = (RotateLayout) mRootView.findViewById(R.id.recording_time_rect);
+        mTimeLapseLabel = mRootView.findViewById(R.id.time_lapse_label);
+        // The R.id.labels can only be found in phone layout.
+        // That is, mLabelsLinearLayout should be null in tablet layout.
+        mLabelsLinearLayout = (LinearLayout) mRootView.findViewById(R.id.labels);
+
+        mBgLearningMessageRotater = (RotateLayout) mRootView.findViewById(R.id.bg_replace_message);
+        mBgLearningMessageFrame = mRootView.findViewById(R.id.bg_replace_message_frame);
+    }
+
+    @Override
+    public void onConfigurationChanged(Configuration newConfig) {
+        setDisplayOrientation();
+
+        // Change layout in response to configuration change
+        LayoutInflater inflater = mActivity.getLayoutInflater();
+        ((ViewGroup) mRootView).removeAllViews();
+        inflater.inflate(R.layout.video_module, (ViewGroup) mRootView);
+
+        // from onCreate()
+        initializeControlByIntent();
+        initializeOverlay();
+        initializeSurfaceView();
+        initializeMiscControls();
+        showTimeLapseUI(mCaptureTimeLapse);
+        initializeVideoSnapshot();
+        resizeForPreviewAspectRatio();
+
+        // from onResume()
+        showVideoSnapshotUI(false);
+        initializeZoom();
+        onFullScreenChanged(mActivity.isInCameraApp());
+        updateOnScreenIndicators();
+    }
+
+    @Override
+    public void onOverriddenPreferencesClicked() {
+    }
+
+    @Override
+    // TODO: Delete this after old camera code is removed
+    public void onRestorePreferencesClicked() {
+    }
+
+    private boolean effectsActive() {
+        return (mEffectType != EffectsRecorder.EFFECT_NONE);
+    }
+
+    @Override
+    public void onSharedPreferenceChanged() {
+        // ignore the events after "onPause()" or preview has not started yet
+        if (mPaused) return;
+        synchronized (mPreferences) {
+            // If mCameraDevice is not ready then we can set the parameter in
+            // startPreview().
+            if (mActivity.mCameraDevice == null) return;
+
+            boolean recordLocation = RecordLocationPreference.get(
+                    mPreferences, mContentResolver);
+            mLocationManager.recordLocation(recordLocation);
+
+            // Check if the current effects selection has changed
+            if (updateEffectSelection()) return;
+
+            readVideoPreferences();
+            showTimeLapseUI(mCaptureTimeLapse);
+            // We need to restart the preview if preview size is changed.
+            Size size = mParameters.getPreviewSize();
+            if (size.width != mDesiredPreviewWidth
+                    || size.height != mDesiredPreviewHeight) {
+                if (!effectsActive()) {
+                    stopPreview();
+                } else {
+                    mEffectsRecorder.release();
+                    mEffectsRecorder = null;
+                }
+                resizeForPreviewAspectRatio();
+                startPreview(); // Parameters will be set in startPreview().
+            } else {
+                setCameraParameters();
+            }
+            updateOnScreenIndicators();
+        }
+    }
+
+    private void updateOnScreenIndicators() {
+        updateFlashOnScreenIndicator(mParameters.getFlashMode());
+    }
+
+    private void updateFlashOnScreenIndicator(String value) {
+        if (mFlashIndicator == null) {
+            return;
+        }
+        if (value == null || Parameters.FLASH_MODE_OFF.equals(value)) {
+            mFlashIndicator.setImageResource(R.drawable.ic_indicator_flash_off);
+        } else {
+            if (Parameters.FLASH_MODE_AUTO.equals(value)) {
+                mFlashIndicator.setImageResource(R.drawable.ic_indicator_flash_auto);
+            } else if (Parameters.FLASH_MODE_ON.equals(value) ||
+                    Parameters.FLASH_MODE_TORCH.equals(value)) {
+                mFlashIndicator.setImageResource(R.drawable.ic_indicator_flash_on);
+            } else {
+                mFlashIndicator.setImageResource(R.drawable.ic_indicator_flash_off);
+            }
+        }
+    }
+
+    private void switchCamera() {
+        if (mPaused) return;
+
+        Log.d(TAG, "Start to switch camera.");
+        mCameraId = mPendingSwitchCameraId;
+        mPendingSwitchCameraId = -1;
+        mVideoControl.setCameraId(mCameraId);
+
+        closeCamera();
+
+        // Restart the camera and initialize the UI. From onCreate.
+        mPreferences.setLocalId(mActivity, mCameraId);
+        CameraSettings.upgradeLocalPreferences(mPreferences.getLocal());
+        openCamera();
+        readVideoPreferences();
+        startPreview();
+        initializeVideoSnapshot();
+        resizeForPreviewAspectRatio();
+        initializeVideoControl();
+
+        // From onResume
+        initializeZoom();
+        setOrientationIndicator(0, false);
+
+        if (ApiHelper.HAS_SURFACE_TEXTURE) {
+            // Start switch camera animation. Post a message because
+            // onFrameAvailable from the old camera may already exist.
+            mHandler.sendEmptyMessage(SWITCH_CAMERA_START_ANIMATION);
+        }
+        updateOnScreenIndicators();
+    }
+
+    // Preview texture has been copied. Now camera can be released and the
+    // animation can be started.
+    @Override
+    public void onPreviewTextureCopied() {
+        mHandler.sendEmptyMessage(SWITCH_CAMERA);
+    }
+
+    @Override
+    public void onCaptureTextureCopied() {
+    }
+
+    private boolean updateEffectSelection() {
+        int previousEffectType = mEffectType;
+        Object previousEffectParameter = mEffectParameter;
+        mEffectType = CameraSettings.readEffectType(mPreferences);
+        mEffectParameter = CameraSettings.readEffectParameter(mPreferences);
+
+        if (mEffectType == previousEffectType) {
+            if (mEffectType == EffectsRecorder.EFFECT_NONE) return false;
+            if (mEffectParameter.equals(previousEffectParameter)) return false;
+        }
+        Log.v(TAG, "New effect selection: " + mPreferences.getString(
+                CameraSettings.KEY_VIDEO_EFFECT, "none"));
+
+        if (mEffectType == EffectsRecorder.EFFECT_NONE) {
+            // Stop effects and return to normal preview
+            mEffectsRecorder.stopPreview();
+            mPreviewing = false;
+            return true;
+        }
+        if (mEffectType == EffectsRecorder.EFFECT_BACKDROPPER &&
+            ((String) mEffectParameter).equals(EFFECT_BG_FROM_GALLERY)) {
+            // Request video from gallery to use for background
+            Intent i = new Intent(Intent.ACTION_PICK);
+            i.setDataAndType(Video.Media.EXTERNAL_CONTENT_URI,
+                             "video/*");
+            i.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
+            mActivity.startActivityForResult(i, REQUEST_EFFECT_BACKDROPPER);
+            return true;
+        }
+        if (previousEffectType == EffectsRecorder.EFFECT_NONE) {
+            // Stop regular preview and start effects.
+            stopPreview();
+            checkQualityAndStartPreview();
+        } else {
+            // Switch currently running effect
+            mEffectsRecorder.setEffect(mEffectType, mEffectParameter);
+        }
+        return true;
+    }
+
+    // Verifies that the current preview view size is correct before starting
+    // preview. If not, resets the surface texture and resizes the view.
+    private void checkQualityAndStartPreview() {
+        readVideoPreferences();
+        showTimeLapseUI(mCaptureTimeLapse);
+        Size size = mParameters.getPreviewSize();
+        if (size.width != mDesiredPreviewWidth
+                || size.height != mDesiredPreviewHeight) {
+            resizeForPreviewAspectRatio();
+        }
+        // Start up preview again
+        startPreview();
+    }
+
+    private void showTimeLapseUI(boolean enable) {
+        if (mTimeLapseLabel != null) {
+            mTimeLapseLabel.setVisibility(enable ? View.VISIBLE : View.GONE);
+        }
+    }
+
+    @Override
+    public boolean dispatchTouchEvent(MotionEvent m) {
+        if (mSwitchingCamera) return true;
+        if (mPopup == null && mGestures != null && mRenderOverlay != null) {
+            return mGestures.dispatchTouch(m);
+        } else if (mPopup != null) {
+            return mActivity.superDispatchTouchEvent(m);
+        }
+        return false;
+    }
+
+    private class ZoomChangeListener implements ZoomRenderer.OnZoomChangedListener {
+        @Override
+        public void onZoomValueChanged(int value) {
+            // Not useful to change zoom value when the activity is paused.
+            if (mPaused) return;
+            mZoomValue = value;
+            // Set zoom parameters asynchronously
+            mParameters.setZoom(mZoomValue);
+            mActivity.mCameraDevice.setParametersAsync(mParameters);
+            Parameters p = mActivity.mCameraDevice.getParameters();
+            mZoomRenderer.setZoomValue(mZoomRatios.get(p.getZoom()));
+        }
+
+        @Override
+        public void onZoomStart() {
+        }
+        @Override
+        public void onZoomEnd() {
+        }
+    }
+
+    private void initializeZoom() {
+        if (!mParameters.isZoomSupported()) return;
+        mZoomMax = mParameters.getMaxZoom();
+        mZoomRatios = mParameters.getZoomRatios();
+        // Currently we use immediate zoom for fast zooming to get better UX and
+        // there is no plan to take advantage of the smooth zoom.
+        mZoomRenderer.setZoomMax(mZoomMax);
+        mZoomRenderer.setZoom(mParameters.getZoom());
+        mZoomRenderer.setZoomValue(mZoomRatios.get(mParameters.getZoom()));
+        mZoomRenderer.setOnZoomChangeListener(new ZoomChangeListener());
+    }
+
+    private void initializeVideoSnapshot() {
+        if (Util.isVideoSnapshotSupported(mParameters) && !mIsVideoCaptureIntent) {
+            mActivity.setSingleTapUpListener(mPreviewFrameLayout);
+            // Show the tap to focus toast if this is the first start.
+            if (mPreferences.getBoolean(
+                        CameraSettings.KEY_VIDEO_FIRST_USE_HINT_SHOWN, true)) {
+                // Delay the toast for one second to wait for orientation.
+                mHandler.sendEmptyMessageDelayed(SHOW_TAP_TO_SNAPSHOT_TOAST, 1000);
+            }
+        } else {
+            mActivity.setSingleTapUpListener(null);
+        }
+    }
+
+    void showVideoSnapshotUI(boolean enabled) {
+        if (Util.isVideoSnapshotSupported(mParameters) && !mIsVideoCaptureIntent) {
+            if (ApiHelper.HAS_SURFACE_TEXTURE && enabled) {
+                ((CameraScreenNail) mActivity.mCameraScreenNail).animateCapture(mDisplayRotation);
+            } else {
+                mPreviewFrameLayout.showBorder(enabled);
+            }
+            mShutterButton.setEnabled(!enabled);
+        }
+    }
+
+    // Preview area is touched. Take a picture.
+    @Override
+    public void onSingleTapUp(View view, int x, int y) {
+        if (mMediaRecorderRecording && effectsActive()) {
+            new RotateTextToast(mActivity, R.string.disable_video_snapshot_hint,
+                    mOrientation).show();
+            return;
+        }
+
+        if (mPaused || mSnapshotInProgress || effectsActive()) {
+            return;
+        }
+
+        if (!mMediaRecorderRecording) {
+            // check for dismissing popup
+            if (mPopup != null) {
+                dismissPopup(true);
+            }
+            return;
+        }
+
+        // Set rotation and gps data.
+        int rotation = Util.getJpegRotation(mCameraId, mOrientation);
+        mParameters.setRotation(rotation);
+        Location loc = mLocationManager.getCurrentLocation();
+        Util.setGpsParameters(mParameters, loc);
+        mActivity.mCameraDevice.setParameters(mParameters);
+
+        Log.v(TAG, "Video snapshot start");
+        mActivity.mCameraDevice.takePicture(null, null, null, new JpegPictureCallback(loc));
+        showVideoSnapshotUI(true);
+        mSnapshotInProgress = true;
+    }
+
+    @Override
+    public void updateCameraAppView() {
+        if (!mPreviewing || mParameters.getFlashMode() == null) return;
+
+        // When going to and back from gallery, we need to turn off/on the flash.
+        if (!mActivity.mShowCameraAppView) {
+            if (mParameters.getFlashMode().equals(Parameters.FLASH_MODE_OFF)) {
+                mRestoreFlash = false;
+                return;
+            }
+            mRestoreFlash = true;
+            setCameraParameters();
+        } else if (mRestoreFlash) {
+            mRestoreFlash = false;
+            setCameraParameters();
+        }
+    }
+
+    private void setShowMenu(boolean show) {
+        if (mOnScreenIndicators != null) {
+            mOnScreenIndicators.setVisibility(show ? View.VISIBLE : View.GONE);
+        }
+        if (mMenu != null) {
+            mMenu.setVisibility(show ? View.VISIBLE : View.GONE);
+        }
+    }
+
+    @Override
+    public void onFullScreenChanged(boolean full) {
+        if (mGestures != null) {
+            mGestures.setEnabled(full);
+        }
+        if (mPopup != null) {
+            dismissPopup(false, full);
+        }
+        if (mRenderOverlay != null) {
+            // this can not happen in capture mode
+            mRenderOverlay.setVisibility(full ? View.VISIBLE : View.GONE);
+        }
+        setShowMenu(full);
+        if (mBlocker != null) {
+            // this can not happen in capture mode
+            mBlocker.setVisibility(full ? View.VISIBLE : View.GONE);
+        }
+        if (ApiHelper.HAS_SURFACE_TEXTURE) {
+            if (mActivity.mCameraScreenNail != null) {
+                ((CameraScreenNail) mActivity.mCameraScreenNail).setFullScreen(full);
+            }
+            return;
+        }
+        if (full) {
+            mPreviewSurfaceView.expand();
+        } else {
+            mPreviewSurfaceView.shrink();
+        }
+    }
+
+    private final class JpegPictureCallback implements PictureCallback {
+        Location mLocation;
+
+        public JpegPictureCallback(Location loc) {
+            mLocation = loc;
+        }
+
+        @Override
+        public void onPictureTaken(byte [] jpegData, android.hardware.Camera camera) {
+            Log.v(TAG, "onPictureTaken");
+            mSnapshotInProgress = false;
+            showVideoSnapshotUI(false);
+            storeImage(jpegData, mLocation);
+        }
+    }
+
+    private void storeImage(final byte[] data, Location loc) {
+        long dateTaken = System.currentTimeMillis();
+        String title = Util.createJpegName(dateTaken);
+        int orientation = Exif.getOrientation(data);
+        Size s = mParameters.getPictureSize();
+        Uri uri = Storage.addImage(mContentResolver, title, dateTaken, loc, orientation, data,
+                s.width, s.height);
+        if (uri != null) {
+            Util.broadcastNewPicture(mActivity, uri);
+        }
+    }
+
+    private boolean resetEffect() {
+        if (mResetEffect) {
+            String value = mPreferences.getString(CameraSettings.KEY_VIDEO_EFFECT,
+                    mPrefVideoEffectDefault);
+            if (!mPrefVideoEffectDefault.equals(value)) {
+                writeDefaultEffectToPrefs();
+                return true;
+            }
+        }
+        mResetEffect = true;
+        return false;
+    }
+
+    private String convertOutputFormatToMimeType(int outputFileFormat) {
+        if (outputFileFormat == MediaRecorder.OutputFormat.MPEG_4) {
+            return "video/mp4";
+        }
+        return "video/3gpp";
+    }
+
+    private String convertOutputFormatToFileExt(int outputFileFormat) {
+        if (outputFileFormat == MediaRecorder.OutputFormat.MPEG_4) {
+            return ".mp4";
+        }
+        return ".3gp";
+    }
+
+    private void closeVideoFileDescriptor() {
+        if (mVideoFileDescriptor != null) {
+            try {
+                mVideoFileDescriptor.close();
+            } catch (IOException e) {
+                Log.e(TAG, "Fail to close fd", e);
+            }
+            mVideoFileDescriptor = null;
+        }
+    }
+
+    private void showTapToSnapshotToast() {
+        new RotateTextToast(mActivity, R.string.video_snapshot_hint, 0)
+                .show();
+        // Clear the preference.
+        Editor editor = mPreferences.edit();
+        editor.putBoolean(CameraSettings.KEY_VIDEO_FIRST_USE_HINT_SHOWN, false);
+        editor.apply();
+    }
+
+    private void clearVideoNamer() {
+        if (mVideoNamer != null) {
+            mVideoNamer.finish();
+            mVideoNamer = null;
+        }
+    }
+
+    private static class VideoNamer extends Thread {
+        private boolean mRequestPending;
+        private ContentResolver mResolver;
+        private ContentValues mValues;
+        private boolean mStop;
+        private Uri mUri;
+
+        // Runs in main thread
+        public VideoNamer() {
+            start();
+        }
+
+        // Runs in main thread
+        public synchronized void prepareUri(
+                ContentResolver resolver, ContentValues values) {
+            mRequestPending = true;
+            mResolver = resolver;
+            mValues = new ContentValues(values);
+            notifyAll();
+        }
+
+        // Runs in main thread
+        public synchronized Uri getUri() {
+            // wait until the request is done.
+            while (mRequestPending) {
+                try {
+                    wait();
+                } catch (InterruptedException ex) {
+                    // ignore.
+                }
+            }
+            Uri uri = mUri;
+            mUri = null;
+            return uri;
+        }
+
+        // Runs in namer thread
+        @Override
+        public synchronized void run() {
+            while (true) {
+                if (mStop) break;
+                if (!mRequestPending) {
+                    try {
+                        wait();
+                    } catch (InterruptedException ex) {
+                        // ignore.
+                    }
+                    continue;
+                }
+                cleanOldUri();
+                generateUri();
+                mRequestPending = false;
+                notifyAll();
+            }
+            cleanOldUri();
+        }
+
+        // Runs in main thread
+        public synchronized void finish() {
+            mStop = true;
+            notifyAll();
+        }
+
+        // Runs in namer thread
+        private void generateUri() {
+            Uri videoTable = Uri.parse("content://media/external/video/media");
+            mUri = mResolver.insert(videoTable, mValues);
+        }
+
+        // Runs in namer thread
+        private void cleanOldUri() {
+            if (mUri == null) return;
+            mResolver.delete(mUri, null, null);
+            mUri = null;
+        }
+    }
+
+    private class SurfaceViewCallback implements SurfaceHolder.Callback {
+        public SurfaceViewCallback() {}
+
+        @Override
+        public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
+            Log.v(TAG, "Surface changed. width=" + width + ". height=" + height);
+        }
+
+        @Override
+        public void surfaceCreated(SurfaceHolder holder) {
+            Log.v(TAG, "Surface created");
+            mSurfaceViewReady = true;
+            if (mPaused) return;
+            if (!ApiHelper.HAS_SURFACE_TEXTURE) {
+                mActivity.mCameraDevice.setPreviewDisplayAsync(mPreviewSurfaceView.getHolder());
+                if (!mPreviewing) {
+                    startPreview();
+                }
+            }
+        }
+
+        @Override
+        public void surfaceDestroyed(SurfaceHolder holder) {
+            Log.v(TAG, "Surface destroyed");
+            mSurfaceViewReady = false;
+            if (mPaused) return;
+            if (!ApiHelper.HAS_SURFACE_TEXTURE) {
+                stopVideoRecording();
+                stopPreview();
+            }
+        }
+    }
+
+    @Override
+    public boolean updateStorageHintOnResume() {
+        return true;
+    }
+
+    // required by OnPreferenceChangedListener
+    @Override
+    public void onCameraPickerClicked(int cameraId) {
+        if (mPaused || mPendingSwitchCameraId != -1) return;
+
+        mPendingSwitchCameraId = cameraId;
+        if (ApiHelper.HAS_SURFACE_TEXTURE) {
+            Log.d(TAG, "Start to copy texture.");
+            // We need to keep a preview frame for the animation before
+            // releasing the camera. This will trigger onPreviewTextureCopied.
+            ((CameraScreenNail) mActivity.mCameraScreenNail).copyTexture();
+            // Disable all camera controls.
+            mSwitchingCamera = true;
+        } else {
+            switchCamera();
+        }
+    }
+
+    @Override
+    public boolean needsSwitcher() {
+        return !mIsVideoCaptureIntent;
+    }
+
+    @Override
+    public void onPieOpened(int centerX, int centerY) {
+        mActivity.cancelActivityTouchHandling();
+        mActivity.setSwipingEnabled(false);
+    }
+
+    @Override
+    public void onPieClosed() {
+        mActivity.setSwipingEnabled(true);
+    }
+
+    public void showPopup(AbstractSettingPopup popup) {
+        mActivity.hideUI();
+        mBlocker.setVisibility(View.INVISIBLE);
+        setShowMenu(false);
+        mPopup = popup;
+        mPopup.setVisibility(View.VISIBLE);
+        FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
+                LayoutParams.WRAP_CONTENT);
+        lp.gravity = Gravity.CENTER;
+        ((FrameLayout) mRootView).addView(mPopup, lp);
+    }
+
+    public void dismissPopup(boolean topLevelOnly) {
+        dismissPopup(topLevelOnly, true);
+    }
+
+    public void dismissPopup(boolean topLevelPopupOnly, boolean fullScreen) {
+        if (fullScreen) {
+            mActivity.showUI();
+            mBlocker.setVisibility(View.VISIBLE);
+        }
+        setShowMenu(fullScreen);
+        if (mPopup != null) {
+            ((FrameLayout) mRootView).removeView(mPopup);
+            mPopup = null;
+        }
+        mVideoControl.popupDismissed(topLevelPopupOnly);
+    }
+
+    @Override
+    public void onShowSwitcherPopup() {
+        if (mPieRenderer.showsItems()) {
+            mPieRenderer.hide();
+        }
+    }
+}