/* * 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.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.MediaColumns; import android.provider.MediaStore.Video; import android.util.Log; import android.view.KeyEvent; import android.view.OrientationEventListener; import android.view.View; import android.view.WindowManager; import android.widget.Toast; import com.android.camera.CameraManager.CameraPictureCallback; import com.android.camera.CameraManager.CameraProxy; import com.android.camera.app.OrientationManager; import com.android.camera.exif.ExifInterface; import com.android.camera.ui.RotateTextToast; import com.android.camera.util.AccessibilityUtils; import com.android.camera.util.ApiHelper; import com.android.camera.util.CameraUtil; import com.android.camera.util.UsageStatistics; import com.android.camera2.R; 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, VideoController, CameraPreference.OnPreferenceChangedListener, ShutterButton.OnShutterButtonListener, MediaRecorder.OnErrorListener, MediaRecorder.OnInfoListener { private static final String TAG = "CAM_VideoModule"; 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 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"; // module fields private CameraActivity mActivity; private boolean mPaused; private int mCameraId; private Parameters mParameters; private boolean mIsInReviewMode; private boolean mSnapshotInProgress = false; private final CameraErrorCallback mErrorCallback = new CameraErrorCallback(); private ComboPreferences mPreferences; private PreferenceGroup mPreferenceGroup; // Preference must be read before starting preview. We check this before starting // preview. private boolean mPreferenceRead; private boolean mIsVideoCaptureIntent; private boolean mQuickCapture; private MediaRecorder mMediaRecorder; private boolean mSwitchingCamera; private boolean mMediaRecorderRecording = false; private long mRecordingStartTime; private boolean mRecordingTimeCountsDown = false; 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 boolean mCurrentVideoUriFromMediaSaved; 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; 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 int mDesiredPreviewWidth; private int mDesiredPreviewHeight; private ContentResolver mContentResolver; private LocationManager mLocationManager; private OrientationManager mOrientationManager; private int mPendingSwitchCameraId; private final Handler mHandler = new MainHandler(); private VideoUI mUI; private CameraProxy mCameraDevice; // 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 final MediaSaveService.OnMediaSavedListener mOnVideoSavedListener = new MediaSaveService.OnMediaSavedListener() { @Override public void onMediaSaved(Uri uri) { if (uri != null) { mCurrentVideoUri = uri; mCurrentVideoUriFromMediaSaved = true; onVideoSaved(); mActivity.notifyNewMedia(uri); } } }; private final MediaSaveService.OnMediaSavedListener mOnPhotoSavedListener = new MediaSaveService.OnMediaSavedListener() { @Override public void onMediaSaved(Uri uri) { if (uri != null) { mActivity.notifyNewMedia(uri); } } }; protected class CameraOpenThread extends Thread { @Override public void run() { openCamera(); } } private void openCamera() { if (mCameraDevice == null) { mCameraDevice = CameraUtil.openCamera( mActivity, mCameraId, mHandler, mActivity.getCameraOpenErrorCallback()); } if (mCameraDevice == null) { // Error. return; } mParameters = mCameraDevice.getParameters(); } // 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: mUI.enableShutter(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 ((CameraUtil.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: { //TODO: //((CameraScreenNail) mActivity.mCameraScreenNail).animateSwitchCamera(); // Enable all camera controls. mSwitchingCamera = false; 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 = CameraUtil.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() { if (!ApiHelper.HAS_SURFACE_TEXTURE_RECORDING) { // API level < 16 mUI.initializeSurfaceView(); } } @Override public void init(CameraActivity activity, View root) { mActivity = activity; mUI = new VideoUI(activity, this, root); mPreferences = new ComboPreferences(mActivity); CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal()); mCameraId = getPreferredCameraId(mPreferences); mPreferences.setLocalId(mActivity, mCameraId); CameraSettings.upgradeLocalPreferences(mPreferences.getLocal()); mOrientationManager = new OrientationManager(mActivity); /* * 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(); // Surface texture is from camera screen nail and startPreview needs it. // This must be done before startPreview. mIsVideoCaptureIntent = isVideoCaptureIntent(); initializeSurfaceView(); // Make sure camera device is opened. try { cameraOpenThread.join(); if (mCameraDevice == null) { return; } } catch (InterruptedException ex) { // ignore } readVideoPreferences(); mUI.setPrefChangedListener(this); mQuickCapture = mActivity.getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false); mLocationManager = new LocationManager(mActivity, null); mUI.setOrientationIndicator(0, false); setDisplayOrientation(); mUI.showTimeLapseUI(mCaptureTimeLapse); initializeVideoSnapshot(); resizeForPreviewAspectRatio(); initializeVideoControl(); mPendingSwitchCameraId = -1; } // SingleTapListener // Preview area is touched. Take a picture. @Override public void onSingleTapUp(View view, int x, int y) { takeASnapshot(); } private void takeASnapshot() { // Only take snapshots if video snapshot is supported by device if (CameraUtil.isVideoSnapshotSupported(mParameters) && !mIsVideoCaptureIntent) { if (!mMediaRecorderRecording || mPaused || mSnapshotInProgress) { return; } MediaSaveService s = mActivity.getMediaSaveService(); if (s == null || s.isQueueFull()) { return; } // Set rotation and gps data. int rotation = CameraUtil.getJpegRotation(mCameraId, mOrientation); mParameters.setRotation(rotation); Location loc = mLocationManager.getCurrentLocation(); CameraUtil.setGpsParameters(mParameters, loc); mCameraDevice.setParameters(mParameters); Log.v(TAG, "Video snapshot start"); mCameraDevice.takePicture(mHandler, null, null, null, new JpegPictureCallback(loc)); showVideoSnapshotUI(true); mSnapshotInProgress = true; UsageStatistics.onEvent(UsageStatistics.COMPONENT_CAMERA, UsageStatistics.ACTION_CAPTURE_DONE, "VideoSnapshot"); } } @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)); } private void initializeVideoControl() { loadCameraPreferences(); mUI.initializePopup(mPreferenceGroup); } @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 = CameraUtil.roundOrientation(orientation, mOrientation); if (mOrientation != newOrientation) { mOrientation = newOrientation; } // 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 startPlayVideoActivity() { Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(mCurrentVideoUri, convertOutputFormatToMimeType(mProfile.fileFormat)); try { mActivity .startActivityForResult(intent, CameraActivity.REQ_CODE_DONT_SWITCH_TO_PREVIEW); } catch (ActivityNotFoundException ex) { Log.e(TAG, "Couldn't view video " + mCurrentVideoUri, ex); } } @Override @OnClickAttr public void onReviewPlayClicked(View v) { startPlayVideoActivity(); } @Override @OnClickAttr public void onReviewDoneClicked(View v) { mIsInReviewMode = false; doReturnToCaller(true); } @Override @OnClickAttr public void onReviewCancelClicked(View v) { // TODO: It should be better to not even insert the URI at all before we // confirm done in review, which means we need to handle temporary video // files in a quite different way than we currently had. // Make sure we don't delete the Uri sent from the video capture intent. if (mCurrentVideoUriFromMediaSaved) { mContentResolver.delete(mCurrentVideoUri, null, null); } mIsInReviewMode = false; doReturnToCaller(false); } @Override public boolean isInReviewMode() { return mIsInReviewMode; } private void onStopVideoRecording() { boolean recordFail = stopVideoRecording(); if (mIsVideoCaptureIntent) { if (mQuickCapture) { doReturnToCaller(!recordFail); } else if (!recordFail) { showCaptureResult(); } } 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. mUI.animateFlash(); mUI.animateCapture(); } } } public void onVideoSaved() { if (mIsVideoCaptureIntent) { showCaptureResult(); } } public void onProtectiveCurtainClick(View v) { // Consume clicks } @Override public void onShutterButtonClick() { if (mUI.collapseCameraControls() || mSwitchingCamera) return; boolean stop = mMediaRecorderRecording; if (stop) { onStopVideoRecording(); } else { startVideoRecording(); } mUI.enableShutter(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) { mUI.setShutterPressed(pressed); } 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 videoQuality = mPreferences.getString(CameraSettings.KEY_VIDEO_QUALITY, null); if (videoQuality == null) { // check for highest quality before setting default value videoQuality = CameraSettings.getSupportedHighestVideoQuality(mCameraId, mActivity.getResources().getString(R.string.pref_video_quality_default)); mPreferences.edit().putString(CameraSettings.KEY_VIDEO_QUALITY, videoQuality); } 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); } // Read time lapse recording interval. 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(); mPreferenceRead = true; } @TargetApi(Build.VERSION_CODES.HONEYCOMB) private void getDesiredPreviewSize() { if (mCameraDevice == null) { return; } mParameters = mCameraDevice.getParameters(); if (mParameters.getSupportedVideoSizes() == null) { mDesiredPreviewWidth = mProfile.videoFrameWidth; mDesiredPreviewHeight = mProfile.videoFrameHeight; } else { // Driver supports separates outputs for preview and video. List sizes = mParameters.getSupportedPreviewSizes(); Size preferred = mParameters.getPreferredPreviewSizeForVideo(); int product = preferred.width * preferred.height; Iterator 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 = CameraUtil.getOptimalPreviewSize(mActivity, sizes, (double) mProfile.videoFrameWidth / mProfile.videoFrameHeight); mDesiredPreviewWidth = optimalSize.width; mDesiredPreviewHeight = optimalSize.height; } mUI.setPreviewSize(mDesiredPreviewWidth, mDesiredPreviewHeight); Log.v(TAG, "mDesiredPreviewWidth=" + mDesiredPreviewWidth + ". mDesiredPreviewHeight=" + mDesiredPreviewHeight); } private void resizeForPreviewAspectRatio() { mUI.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() { mUI.enableShutter(false); mZoomValue = 0; showVideoSnapshotUI(false); if (!mPreviewing) { openCamera(); if (mCameraDevice == null) { return; } readVideoPreferences(); resizeForPreviewAspectRatio(); startPreview(); } else { // preview already started mUI.enableShutter(true); } mUI.initDisplayChangeListener(); // Initializing it here after the preview is started. mUI.initializeZoom(mParameters); keepScreenOnAwhile(); mOrientationManager.resume(); // Initialize location service. boolean recordLocation = RecordLocationPreference.get(mPreferences, mContentResolver); mLocationManager.recordLocation(recordLocation); if (mPreviewing) { mOnResumeTime = SystemClock.uptimeMillis(); mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100); } UsageStatistics.onContentViewChanged( UsageStatistics.COMPONENT_CAMERA, "VideoModule"); } private void setDisplayOrientation() { mDisplayRotation = CameraUtil.getDisplayRotation(mActivity); mCameraDisplayOrientation = CameraUtil.getDisplayOrientation(mDisplayRotation, mCameraId); // Change the camera display orientation if (mCameraDevice != null) { mCameraDevice.setDisplayOrientation(mCameraDisplayOrientation); } } @Override public void updateCameraOrientation() { if (mMediaRecorderRecording) return; if (mDisplayRotation != CameraUtil.getDisplayRotation(mActivity)) { setDisplayOrientation(); } } @Override public int onZoomChanged(int index) { // Not useful to change zoom value when the activity is paused. if (mPaused) return index; mZoomValue = index; if (mParameters == null || mCameraDevice == null) return index; // Set zoom parameters asynchronously mParameters.setZoom(mZoomValue); mCameraDevice.setParameters(mParameters); Parameters p = mCameraDevice.getParameters(); if (p != null) return p.getZoom(); return index; } private void startPreview() { Log.v(TAG, "startPreview"); SurfaceTexture surfaceTexture = mUI.getSurfaceTexture(); if (!mPreferenceRead || surfaceTexture == null || mPaused == true || mCameraDevice == null) { return; } mCameraDevice.setErrorCallback(mErrorCallback); if (mPreviewing == true) { stopPreview(); } setDisplayOrientation(); mCameraDevice.setDisplayOrientation(mCameraDisplayOrientation); setCameraParameters(); try { mCameraDevice.setPreviewTexture(surfaceTexture); mCameraDevice.startPreview(); mPreviewing = true; onPreviewStarted(); } catch (Throwable ex) { closeCamera(); throw new RuntimeException("startPreview failed", ex); } } private void onPreviewStarted() { mUI.enableShutter(true); } @Override public void stopPreview() { if (!mPreviewing) return; mCameraDevice.stopPreview(); mPreviewing = false; } private void closeCamera() { Log.v(TAG, "closeCamera"); if (mCameraDevice == null) { Log.d(TAG, "already stopped."); return; } mCameraDevice.setZoomChangeListener(null); mCameraDevice.setErrorCallback(null); CameraHolder.instance().release(); mCameraDevice = null; mPreviewing = false; mSnapshotInProgress = false; } private void releasePreviewResources() { if (!ApiHelper.HAS_SURFACE_TEXTURE_RECORDING) { mUI.hideSurfaceView(); } } @Override public void onPauseBeforeSuper() { mPaused = true; mUI.showPreviewCover(); if (mMediaRecorderRecording) { // Camera will be released in onStopVideoRecording. onStopVideoRecording(); } else { closeCamera(); releaseMediaRecorder(); } closeVideoFileDescriptor(); releasePreviewResources(); if (mReceiver != null) { mActivity.unregisterReceiver(mReceiver); mReceiver = null; } resetScreenOn(); if (mLocationManager != null) mLocationManager.recordLocation(false); mOrientationManager.pause(); mHandler.removeMessages(CHECK_DISPLAY_ROTATION); mHandler.removeMessages(SWITCH_CAMERA); mHandler.removeMessages(SWITCH_CAMERA_START_ANIMATION); mPendingSwitchCameraId = -1; mSwitchingCamera = false; mPreferenceRead = false; mUI.collapseCameraControls(); mUI.removeDisplayChangeListener(); } @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 (mUI.hidePieRenderer()) { return true; } else { return mUI.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) { mUI.clickShutter(); return true; } break; case KeyEvent.KEYCODE_DPAD_CENTER: if (event.getRepeatCount() == 0) { mUI.clickShutter(); 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: mUI.pressShutter(false); return true; } return false; } @Override public 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_RECORDING) { // We stop the preview here before unlocking the device because we // need to change the SurfaceTexture to SurfaceView for preview. stopPreview(); mCameraDevice.setPreviewDisplay(mUI.getSurfaceHolder()); // 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. mCameraDevice.setDisplayOrientation( CameraUtil.getDisplayOrientation(mDisplayRotation, mCameraId)); mCameraDevice.startPreview(); mPreviewing = true; mMediaRecorder.setPreviewDisplay(mUI.getSurfaceHolder().getSurface()); } } // Prepares media recorder. private void initializeRecorder() { Log.v(TAG, "initializeRecorder"); // If the mCameraDevice is null, then this activity is going to finish if (mCameraDevice == null) return; if (!ApiHelper.HAS_SURFACE_TEXTURE_RECORDING) { // 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(). mUI.showSurfaceView(); } Intent intent = mActivity.getIntent(); Bundle myExtras = intent.getExtras(); long requestedSizeLimit = 0; closeVideoFileDescriptor(); mCurrentVideoUriFromMediaSaved = false; 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(); // Unlock the camera object before passing it to media recorder. mCameraDevice.unlock(); mMediaRecorder.setCamera(mCameraDevice.getCamera()); if (!mCaptureTimeLapse) { mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER); } mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); mMediaRecorder.setProfile(mProfile); mMediaRecorder.setVideoSize(mProfile.videoFrameWidth, mProfile.videoFrameHeight); 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.getStorageSpaceBytes() - Storage.LOW_STORAGE_THRESHOLD_BYTES; 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); setupMediaRecorderPreviewDisplay(); 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); } private static void setCaptureRate(MediaRecorder recorder, double fps) { recorder.setCaptureRate(fps); } private void setRecordLocation() { Location loc = mLocationManager.getCurrentLocation(); if (loc != null) { mMediaRecorder.setLocation((float) loc.getLatitude(), (float) loc.getLongitude()); } } private void releaseMediaRecorder() { Log.v(TAG, "Releasing media recorder."); if (mMediaRecorder != null) { cleanupEmptyFile(); mMediaRecorder.reset(); mMediaRecorder.release(); mMediaRecorder = null; } 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(9); mCurrentVideoValues.put(Video.Media.TITLE, title); mCurrentVideoValues.put(Video.Media.DISPLAY_NAME, filename); mCurrentVideoValues.put(Video.Media.DATE_TAKEN, dateTaken); mCurrentVideoValues.put(MediaColumns.DATE_MODIFIED, dateTaken / 1000); 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()); } mVideoFilename = tmpPath; Log.v(TAG, "New video filename: " + mVideoFilename); } private void saveVideo() { if (mVideoFileDescriptor == null) { long duration = SystemClock.uptimeMillis() - mRecordingStartTime; if (duration > 0) { if (mCaptureTimeLapse) { duration = getTimeLapseVideoLength(duration); } } else { Log.w(TAG, "Video duration <= 0 : " + duration); } mActivity.getMediaSaveService().addVideo(mCurrentVideoFilename, duration, mCurrentVideoValues, mOnVideoSavedListener, mContentResolver); } mCurrentVideoValues = null; } 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"); mUI.cancelAnimations(); mUI.setSwipingEnabled(false); mActivity.updateStorageSpaceAndHint(); if (mActivity.getStorageSpaceBytes() <= Storage.LOW_STORAGE_THRESHOLD_BYTES) { Log.v(TAG, "Storage issue, ignore the start request"); return; } //?? //if (!mCameraDevice.waitDone()) return; mCurrentVideoUri = null; initializeRecorder(); if (mMediaRecorder == null) { Log.e(TAG, "Fail to initialize media recorder"); return; } pauseAudioPlayback(); 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. mCameraDevice.lock(); return; } // Make sure the video recording has started before announcing // this in accessibility. AccessibilityUtils.makeAnnouncement(mUI.getShutterButton(), mActivity.getString(R.string.video_recording_started)); // The parameters might have been altered by MediaRecorder already. // We need to force mCameraDevice to refresh before getting it. mCameraDevice.refreshParameters(); // 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. mParameters = mCameraDevice.getParameters(); mUI.enableCameraControls(false); mMediaRecorderRecording = true; mOrientationManager.lockOrientation(); mRecordingStartTime = SystemClock.uptimeMillis(); mUI.showRecordingUI(true); updateRecordingTime(); keepScreenOn(); UsageStatistics.onEvent(UsageStatistics.COMPONENT_CAMERA, UsageStatistics.ACTION_CAPTURE_START, "Video"); } private Bitmap getVideoThumbnail() { Bitmap bitmap = null; if (mVideoFileDescriptor != null) { bitmap = Thumbnail.createVideoThumbnailBitmap(mVideoFileDescriptor.getFileDescriptor(), mDesiredPreviewWidth); } else if (mCurrentVideoUri != null) { try { mVideoFileDescriptor = mContentResolver.openFileDescriptor(mCurrentVideoUri, "r"); bitmap = Thumbnail.createVideoThumbnailBitmap( mVideoFileDescriptor.getFileDescriptor(), mDesiredPreviewWidth); } catch (java.io.FileNotFoundException ex) { // invalid uri Log.e(TAG, ex.toString()); } } 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 = CameraUtil.rotateAndMirror(bitmap, 0, mirror); } return bitmap; } private void showCaptureResult() { mIsInReviewMode = true; Bitmap bitmap = getVideoThumbnail(); if (bitmap != null) { mUI.showReviewImage(bitmap); } mUI.showReviewControls(); mUI.enableCameraControls(false); mUI.showTimeLapseUI(false); } private boolean stopVideoRecording() { Log.v(TAG, "stopVideoRecording"); mUI.setSwipingEnabled(true); if (!isVideoCaptureIntent()) { mUI.showSwitcher(); } boolean fail = false; if (mMediaRecorderRecording) { boolean shouldAddToMediaStoreNow = false; try { mMediaRecorder.setOnErrorListener(null); mMediaRecorder.setOnInfoListener(null); mMediaRecorder.stop(); shouldAddToMediaStoreNow = true; mCurrentVideoFilename = mVideoFilename; Log.v(TAG, "stopVideoRecording: Setting current video filename: " + mCurrentVideoFilename); AccessibilityUtils.makeAnnouncement(mUI.getShutterButton(), 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; mOrientationManager.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. if (mPaused) { closeCamera(); } mUI.showRecordingUI(false); if (!mIsVideoCaptureIntent) { mUI.enableCameraControls(true); } // The orientation was fixed during video recording. Now make it // reflect the device orientation as video recording is stopped. mUI.setOrientationIndicator(0, true); keepScreenOnAwhile(); if (shouldAddToMediaStoreNow && !fail) { if (mVideoFileDescriptor == null) { saveVideo(); } else if (mIsVideoCaptureIntent) { // if no file save is needed, we can show the post capture UI now showCaptureResult(); } } } // release media recorder releaseMediaRecorder(); if (!mPaused) { mCameraDevice.lock(); if (!ApiHelper.HAS_SURFACE_TEXTURE_RECORDING) { stopPreview(); mUI.hideSurfaceView(); // Switch back to use SurfaceTexture for preview. startPreview(); } } // Update the parameters here because the parameters might have been altered // by MediaRecorder. if (!mPaused) mParameters = mCameraDevice.getParameters(); UsageStatistics.onEvent(UsageStatistics.COMPONENT_CAMERA, fail ? UsageStatistics.ACTION_CAPTURE_FAIL : UsageStatistics.ACTION_CAPTURE_DONE, "Video", SystemClock.uptimeMillis() - mRecordingStartTime); 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; } mUI.setRecordingTime(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); mUI.setRecordingTimeTextColor(color); } long actualNextUpdateDelay = targetNextUpdateDelay - (delta % targetNextUpdateDelay); mHandler.sendEmptyMessageDelayed( UPDATE_RECORD_TIME, actualNextUpdateDelay); } private static boolean isSupported(String value, List supported) { return supported == null ? false : supported.indexOf(value) >= 0; } @SuppressWarnings("deprecation") private void setCameraParameters() { mParameters.setPreviewSize(mDesiredPreviewWidth, mDesiredPreviewHeight); mParameters.set("video-size", mProfile.videoFrameWidth+"x"+mProfile.videoFrameHeight); int[] fpsRange = CameraUtil.getMaxPreviewFpsRange(mParameters); if (fpsRange.length > 0) { mParameters.setPreviewFpsRange( fpsRange[Parameters.PREVIEW_FPS_MIN_INDEX], fpsRange[Parameters.PREVIEW_FPS_MAX_INDEX]); } else { mParameters.setPreviewFrameRate(mProfile.videoFrameRate); } forceFlashOffIfSupported(!mUI.isVisible()); // 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 supportedFocus = mParameters.getSupportedFocusModes(); if (isSupported(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO, supportedFocus)) { mParameters.setFocusMode(Parameters.FOCUS_MODE_CONTINUOUS_VIDEO); } mParameters.set(CameraUtil.RECORDING_HINT, CameraUtil.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 supported = mParameters.getSupportedPictureSizes(); Size optimalSize = CameraUtil.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); boolean flag = false; if (mPreviewing) { stopPreview(); flag = true; } mCameraDevice.setParameters(mParameters); if (flag) { startPreview(); } // Keep preview size up to date. mParameters = mCameraDevice.getParameters(); // Update UI based on the new parameters. mUI.updateOnScreenIndicators(mParameters, mPreferences); } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { // Do nothing. } @Override public void onConfigurationChanged(Configuration newConfig) { Log.v(TAG, "onConfigurationChanged"); setDisplayOrientation(); } @Override public void onOverriddenPreferencesClicked() { } @Override // TODO: Delete this after old camera code is removed public void onRestorePreferencesClicked() { } @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 (mCameraDevice == null) return; boolean recordLocation = RecordLocationPreference.get( mPreferences, mContentResolver); mLocationManager.recordLocation(recordLocation); readVideoPreferences(); mUI.showTimeLapseUI(mCaptureTimeLapse); // We need to restart the preview if preview size is changed. Size size = mParameters.getPreviewSize(); if (size.width != mDesiredPreviewWidth || size.height != mDesiredPreviewHeight) { stopPreview(); resizeForPreviewAspectRatio(); startPreview(); // Parameters will be set in startPreview(). } else { setCameraParameters(); } mUI.updateOnScreenIndicators(mParameters, mPreferences); } } protected void setCameraId(int cameraId) { ListPreference pref = mPreferenceGroup.findPreference(CameraSettings.KEY_CAMERA_ID); pref.setValue("" + cameraId); } private void switchCamera() { if (mPaused) { return; } Log.d(TAG, "Start to switch camera."); mCameraId = mPendingSwitchCameraId; mPendingSwitchCameraId = -1; setCameraId(mCameraId); closeCamera(); mUI.collapseCameraControls(); // 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 mZoomValue = 0; mUI.initializeZoom(mParameters); mUI.setOrientationIndicator(0, false); // Start switch camera animation. Post a message because // onFrameAvailable from the old camera may already exist. mHandler.sendEmptyMessage(SWITCH_CAMERA_START_ANIMATION); mUI.updateOnScreenIndicators(mParameters, mPreferences); } // 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 void initializeVideoSnapshot() { if (mParameters == null) return; if (CameraUtil.isVideoSnapshotSupported(mParameters) && !mIsVideoCaptureIntent) { // 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); } } } void showVideoSnapshotUI(boolean enabled) { if (mParameters == null) return; if (CameraUtil.isVideoSnapshotSupported(mParameters) && !mIsVideoCaptureIntent) { if (enabled) { mUI.animateFlash(); mUI.animateCapture(); } else { mUI.showPreviewBorder(enabled); } mUI.enableShutter(!enabled); } } private void forceFlashOffIfSupported(boolean forceOff) { String flashMode; if (!forceOff) { flashMode = mPreferences.getString( CameraSettings.KEY_VIDEOCAMERA_FLASH_MODE, mActivity.getString(R.string.pref_camera_video_flashmode_default)); } else { flashMode = Parameters.FLASH_MODE_OFF; } List 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); } } } /** * Used to update the flash mode. Video mode can turn on the flash as torch * mode, which we would like to turn on and off when we switching in and * out to the preview. * * @param forceOff whether we want to force the flash off. */ private void forceFlashOff(boolean forceOff) { if (!mPreviewing || mParameters.getFlashMode() == null) { return; } forceFlashOffIfSupported(forceOff); mCameraDevice.setParameters(mParameters); mUI.updateOnScreenIndicators(mParameters, mPreferences); } @Override public void onPreviewFocusChanged(boolean previewFocused) { mUI.onPreviewFocusChanged(previewFocused); forceFlashOff(!previewFocused); } @Override public boolean arePreviewControlsVisible() { return mUI.arePreviewControlsVisible(); } private final class JpegPictureCallback implements CameraPictureCallback { Location mLocation; public JpegPictureCallback(Location loc) { mLocation = loc; } @Override public void onPictureTaken(byte [] jpegData, CameraProxy 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 = CameraUtil.createJpegName(dateTaken); ExifInterface exif = Exif.getExif(data); int orientation = Exif.getOrientation(exif); mActivity.getMediaSaveService().addImage( data, title, dateTaken, loc, orientation, exif, mOnPhotoSavedListener, mContentResolver); } 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(); } @Override public boolean updateStorageHintOnResume() { return true; } // required by OnPreferenceChangedListener @Override public void onCameraPickerClicked(int cameraId) { if (mPaused || mPendingSwitchCameraId != -1) return; mPendingSwitchCameraId = cameraId; 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. // TODO: ((CameraScreenNail) mActivity.mCameraScreenNail).copyTexture(); // Disable all camera controls. mSwitchingCamera = true; switchCamera(); } @Override public void onShowSwitcherPopup() { mUI.onShowSwitcherPopup(); } @Override public void onMediaSaveServiceConnected(MediaSaveService s) { // do nothing. } @Override public void onPreviewUIReady() { startPreview(); } @Override public void onPreviewUIDestroyed() { stopPreview(); } }