| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.camera; |
| |
| import com.android.camera.gallery.IImage; |
| import com.android.camera.gallery.IImageList; |
| |
| 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; |
| import android.graphics.Bitmap; |
| import android.graphics.drawable.Drawable; |
| import android.media.MediaRecorder; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.os.Environment; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.os.StatFs; |
| import android.os.SystemClock; |
| import android.preference.PreferenceManager; |
| import android.provider.MediaStore; |
| import android.provider.MediaStore.Video; |
| import android.text.format.DateFormat; |
| import android.util.Log; |
| import android.view.KeyEvent; |
| import android.view.Menu; |
| import android.view.MenuItem; |
| import android.view.SurfaceHolder; |
| import android.view.View; |
| import android.view.Window; |
| import android.view.WindowManager; |
| import android.view.MenuItem.OnMenuItemClickListener; |
| import android.widget.ImageView; |
| import android.widget.TextView; |
| import android.widget.Toast; |
| |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.IOException; |
| import java.text.SimpleDateFormat; |
| import java.util.ArrayList; |
| import java.util.Date; |
| |
| /** |
| * The Camcorder activity. |
| */ |
| public class VideoCamera extends Activity implements View.OnClickListener, |
| ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback, |
| MediaRecorder.OnErrorListener, MediaRecorder.OnInfoListener { |
| |
| private static final String TAG = "videocamera"; |
| |
| private static final int INIT_RECORDER = 3; |
| private static final int CLEAR_SCREEN_DELAY = 4; |
| private static final int UPDATE_RECORD_TIME = 5; |
| |
| private static final int SCREEN_DELAY = 2 * 60 * 1000; |
| |
| private static final long NO_STORAGE_ERROR = -1L; |
| private static final long CANNOT_STAT_ERROR = -2L; |
| private static final long LOW_STORAGE_THRESHOLD = 512L * 1024L; |
| |
| private static final int STORAGE_STATUS_OK = 0; |
| private static final int STORAGE_STATUS_LOW = 1; |
| private static final int STORAGE_STATUS_NONE = 2; |
| |
| public static final int MENU_SETTINGS = 6; |
| public static final int MENU_GALLERY_PHOTOS = 7; |
| public static final int MENU_GALLERY_VIDEOS = 8; |
| public static final int MENU_SAVE_GALLERY_PHOTO = 34; |
| public static final int MENU_SAVE_PLAY_VIDEO = 35; |
| public static final int MENU_SAVE_SELECT_VIDEO = 36; |
| public static final int MENU_SAVE_NEW_VIDEO = 37; |
| |
| SharedPreferences mPreferences; |
| |
| private static final float VIDEO_ASPECT_RATIO = 176.0f / 144.0f; |
| VideoPreview mVideoPreview; |
| SurfaceHolder mSurfaceHolder = null; |
| |
| private boolean mIsVideoCaptureIntent; |
| // mLastPictureButton and mThumbController |
| // are non-null only if mIsVideoCaptureIntent is true. |
| private ImageView mLastPictureButton; |
| private ThumbnailController mThumbController; |
| |
| private int mStorageStatus = STORAGE_STATUS_OK; |
| |
| private MediaRecorder mMediaRecorder; |
| private boolean mMediaRecorderRecording = false; |
| private long mRecordingStartTime; |
| // The video file that the hardware camera is about to record into |
| // (or is recording into.) |
| private String mCameraVideoFilename; |
| private FileDescriptor mCameraVideoFileDescriptor; |
| |
| // 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; |
| |
| // The video frame size we will record (like 352x288). |
| private int mVideoWidth, mVideoHeight; |
| |
| // The video duration limit. |
| private int mMaxVideoDurationInMs; |
| |
| boolean mPausing = false; |
| boolean mPreviewing = false; // True if preview is started. |
| boolean mRecorderInitialized = false; |
| |
| private ContentResolver mContentResolver; |
| |
| private ShutterButton mShutterButton; |
| private TextView mRecordingTimeView; |
| private boolean mRecordingTimeCountsDown = false; |
| |
| ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); |
| |
| private final Handler mHandler = new MainHandler(); |
| |
| // 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 CLEAR_SCREEN_DELAY: { |
| clearScreenOnFlag(); |
| break; |
| } |
| |
| case UPDATE_RECORD_TIME: { |
| updateRecordingTime(); |
| break; |
| } |
| |
| case INIT_RECORDER: { |
| initializeRecorder(); |
| break; |
| } |
| |
| default: |
| Log.v(TAG, "Unhandled message: " + msg.what); |
| break; |
| } |
| } |
| } |
| |
| private final BroadcastReceiver mReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (action.equals(Intent.ACTION_MEDIA_EJECT)) { |
| updateAndShowStorageHint(false); |
| stopVideoRecording(); |
| } else if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) { |
| updateAndShowStorageHint(true); |
| mRecorderInitialized = false; |
| initializeRecorder(); |
| } else if (action.equals(Intent.ACTION_MEDIA_UNMOUNTED)) { |
| // SD card unavailable |
| // handled in ACTION_MEDIA_EJECT |
| } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { |
| Toast.makeText(VideoCamera.this, |
| getResources().getString(R.string.wait), 5000); |
| } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { |
| updateAndShowStorageHint(true); |
| } |
| } |
| }; |
| |
| private static String createName(long dateTaken) { |
| return DateFormat.format("yyyy-MM-dd kk.mm.ss", dateTaken).toString(); |
| } |
| |
| /** Called with the activity is first created. */ |
| @Override |
| public void onCreate(Bundle icicle) { |
| super.onCreate(icicle); |
| |
| /* |
| * To reduce startup time, we open camera device in another thread. |
| * Camera is opened in onCreate instead of onResume because there are |
| * lots of things to do here and camera open can be done in parallel. |
| * We will make sure the camera is opened at the end of onCreate. |
| */ |
| Thread openCameraThread = new Thread(new Runnable() { |
| public void run() { |
| mCameraDevice = CameraHolder.instance().open(); |
| } |
| }); |
| openCameraThread.start(); |
| |
| mPreferences = PreferenceManager.getDefaultSharedPreferences(this); |
| mContentResolver = getContentResolver(); |
| |
| requestWindowFeature(Window.FEATURE_PROGRESS); |
| setContentView(R.layout.video_camera); |
| |
| mVideoPreview = (VideoPreview) findViewById(R.id.camera_preview); |
| mVideoPreview.setAspectRatio(VIDEO_ASPECT_RATIO); |
| |
| // don't set mSurfaceHolder here. We have it set ONLY within |
| // surfaceCreated / surfaceDestroyed, other parts of the code |
| // assume that when it is set, the surface is also set. |
| SurfaceHolder holder = mVideoPreview.getHolder(); |
| holder.addCallback(this); |
| holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); |
| |
| mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); |
| mShutterButton.setImageResource(R.drawable.btn_ic_video_record); |
| mShutterButton.setOnShutterButtonListener(this); |
| mShutterButton.requestFocus(); |
| |
| mRecordingTimeView = (TextView) findViewById(R.id.recording_time); |
| mIsVideoCaptureIntent = isVideoCaptureIntent(); |
| if (!mIsVideoCaptureIntent) { |
| mLastPictureButton = (ImageView) findViewById(R.id.review_thumbnail); |
| mLastPictureButton.setOnClickListener(this); |
| mThumbController = new ThumbnailController( |
| mLastPictureButton, mContentResolver); |
| mThumbController.loadData(ImageManager.getLastVideoThumbPath()); |
| findViewById(R.id.camera_switch).setOnClickListener(this); |
| } else { |
| findViewById(R.id.review_thumbnail).setVisibility(View.INVISIBLE); |
| } |
| |
| // Make sure the camera is opened. |
| try { |
| openCameraThread.join(); |
| } catch (InterruptedException ex) { |
| // ignore |
| } |
| } |
| |
| private void startShareVideoActivity() { |
| Intent intent = new Intent(); |
| intent.setAction(Intent.ACTION_SEND); |
| intent.setType("video/3gpp"); |
| intent.putExtra(Intent.EXTRA_STREAM, mCurrentVideoUri); |
| try { |
| startActivity(Intent.createChooser( |
| intent, getText(R.string.sendVideo))); |
| } catch (android.content.ActivityNotFoundException ex) { |
| Toast.makeText(VideoCamera.this, R.string.no_way_to_share_video, |
| Toast.LENGTH_SHORT).show(); |
| } |
| } |
| |
| public void onClick(View v) { |
| switch (v.getId()) { |
| case R.id.camera_switch: |
| MenuHelper.gotoCameraMode(this); |
| break; |
| case R.id.gallery: |
| gotoGallery(); |
| break; |
| case R.id.attach: |
| doReturnToCaller(true); |
| break; |
| case R.id.cancel: |
| doReturnToCaller(false); |
| break; |
| case R.id.discard: { |
| Runnable deleteCallback = new Runnable() { |
| public void run() { |
| discardCurrentVideoAndInitRecorder(); |
| } |
| }; |
| MenuHelper.deleteVideo(this, deleteCallback); |
| break; |
| } |
| case R.id.share: { |
| startShareVideoActivity(); |
| break; |
| } |
| case R.id.play: { |
| doPlayCurrentVideo(); |
| break; |
| } |
| case R.id.review_thumbnail: { |
| stopVideoRecordingAndShowReview(); |
| break; |
| } |
| } |
| } |
| |
| public void onShutterButtonFocus(ShutterButton button, boolean pressed) { |
| // Do nothing (everything happens in onShutterButtonClick). |
| } |
| |
| public void onShutterButtonClick(ShutterButton button) { |
| switch (button.getId()) { |
| case R.id.shutter_button: |
| if (mMediaRecorderRecording) { |
| if (mIsVideoCaptureIntent) { |
| stopVideoRecordingAndShowReview(); |
| } else { |
| stopVideoRecordingAndGetThumbnail(); |
| mRecorderInitialized = false; |
| initializeRecorder(); |
| } |
| } else if (mRecorderInitialized) { |
| // If the click comes before recorder initialization, it is |
| // ignored. If users click the button during initialization, |
| // the event is put in the queue and record will be started |
| // eventually. |
| startVideoRecording(); |
| } |
| break; |
| } |
| } |
| |
| private void doPlayCurrentVideo() { |
| Log.v(TAG, "Playing current video: " + mCurrentVideoUri); |
| Intent intent = new Intent(Intent.ACTION_VIEW, mCurrentVideoUri); |
| try { |
| startActivity(intent); |
| } catch (android.content.ActivityNotFoundException ex) { |
| Log.e(TAG, "Couldn't view video " + mCurrentVideoUri, ex); |
| } |
| } |
| |
| private void discardCurrentVideoAndInitRecorder() { |
| deleteCurrentVideo(); |
| hideAlertAndInitializeRecorder(); |
| } |
| |
| private OnScreenHint mStorageHint; |
| |
| private void updateAndShowStorageHint(boolean mayHaveSd) { |
| mStorageStatus = getStorageStatus(mayHaveSd); |
| showStorageHint(); |
| } |
| |
| private void showStorageHint() { |
| String errorMessage = null; |
| switch (mStorageStatus) { |
| case STORAGE_STATUS_NONE: |
| errorMessage = getString(R.string.no_storage); |
| break; |
| case STORAGE_STATUS_LOW: |
| errorMessage = getString(R.string.spaceIsLow_content); |
| } |
| if (errorMessage != null) { |
| if (mStorageHint == null) { |
| mStorageHint = OnScreenHint.makeText(this, errorMessage); |
| } else { |
| mStorageHint.setText(errorMessage); |
| } |
| mStorageHint.show(); |
| } else if (mStorageHint != null) { |
| mStorageHint.cancel(); |
| mStorageHint = null; |
| } |
| } |
| |
| private int getStorageStatus(boolean mayHaveSd) { |
| long remaining = mayHaveSd ? getAvailableStorage() : NO_STORAGE_ERROR; |
| if (remaining == NO_STORAGE_ERROR) { |
| return STORAGE_STATUS_NONE; |
| } |
| return remaining < LOW_STORAGE_THRESHOLD |
| ? STORAGE_STATUS_LOW : STORAGE_STATUS_OK; |
| } |
| |
| private void readVideoSizePreference() { |
| boolean videoQualityHigh = getBooleanPreference( |
| CameraSettings.KEY_VIDEO_QUALITY, |
| CameraSettings.DEFAULT_VIDEO_QUALITY_VALUE); |
| |
| // 1 minute = 60000ms |
| mMaxVideoDurationInMs = 60000 * getIntPreference( |
| CameraSettings.KEY_VIDEO_DURATION, |
| CameraSettings.DEFAULT_VIDEO_DURATION_VALUE); |
| |
| Intent intent = getIntent(); |
| if (intent.hasExtra(MediaStore.EXTRA_VIDEO_QUALITY)) { |
| int extraVideoQuality = intent.getIntExtra( |
| MediaStore.EXTRA_VIDEO_QUALITY, 0); |
| videoQualityHigh = (extraVideoQuality > 0); |
| } |
| |
| if (videoQualityHigh) { |
| // CIF size |
| mVideoWidth = 352; |
| mVideoHeight = 288; |
| } else { |
| // QCIF size |
| mVideoWidth = 176; |
| mVideoHeight = 144; |
| } |
| } |
| |
| @Override |
| public void onResume() { |
| super.onResume(); |
| mPausing = false; |
| |
| setScreenTimeoutLong(); |
| readVideoSizePreference(); |
| |
| // install an intent filter to receive SD card related events. |
| IntentFilter intentFilter = |
| new IntentFilter(Intent.ACTION_MEDIA_MOUNTED); |
| intentFilter.addAction(Intent.ACTION_MEDIA_EJECT); |
| intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED); |
| intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED); |
| intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); |
| intentFilter.addDataScheme("file"); |
| registerReceiver(mReceiver, intentFilter); |
| mStorageStatus = getStorageStatus(true); |
| |
| mHandler.postDelayed(new Runnable() { |
| public void run() { |
| showStorageHint(); |
| } |
| }, 200); |
| |
| if (mSurfaceHolder != null) { |
| startPreview(); |
| mRecorderInitialized = false; |
| mHandler.sendEmptyMessage(INIT_RECORDER); |
| } |
| } |
| |
| private void setCameraParameters() { |
| android.hardware.Camera.Parameters param; |
| param = mCameraDevice.getParameters(); |
| param.setPreviewSize(mVideoWidth, mVideoHeight); |
| mCameraDevice.setParameters(param); |
| } |
| |
| // Precondition: mSurfaceHolder != null |
| private void startPreview() { |
| Log.v(TAG, "startPreview"); |
| if (mPreviewing) { |
| // After recording a video, preview is not stopped. So just return. |
| return; |
| } |
| |
| if (mCameraDevice == null) { |
| // If the activity is paused and resumed, camera device has been |
| // released and we need to open the camera. |
| mCameraDevice = CameraHolder.instance().open(); |
| } |
| |
| setCameraParameters(); |
| try { |
| mCameraDevice.setPreviewDisplay(mSurfaceHolder); |
| } catch (Throwable ex) { |
| closeCamera(); |
| throw new RuntimeException("setPreviewDisplay failed", ex); |
| } |
| |
| try { |
| mCameraDevice.startPreview(); |
| mPreviewing = true; |
| } catch (Throwable ex) { |
| closeCamera(); |
| throw new RuntimeException("startPreview failed", ex); |
| } |
| mCameraDevice.unlock(); |
| } |
| |
| private void closeCamera() { |
| Log.v(TAG, "closeCamera"); |
| if (mCameraDevice == null) { |
| Log.d(TAG, "already stopped."); |
| return; |
| } |
| // If we don't lock the camera, release() will fail. |
| mCameraDevice.lock(); |
| CameraHolder.instance().release(); |
| mCameraDevice = null; |
| mPreviewing = false; |
| } |
| |
| @Override |
| public void onStop() { |
| setScreenTimeoutSystemDefault(); |
| super.onStop(); |
| } |
| |
| @Override |
| protected void onPause() { |
| super.onPause(); |
| |
| mPausing = true; |
| |
| // This is similar to what mShutterButton.performClick() does, |
| // but not quite the same. |
| if (mMediaRecorderRecording) { |
| if (mIsVideoCaptureIntent) { |
| stopVideoRecordingAndShowReview(); |
| } else { |
| stopVideoRecordingAndGetThumbnail(); |
| } |
| } else { |
| stopVideoRecording(); |
| } |
| closeCamera(); |
| |
| unregisterReceiver(mReceiver); |
| setScreenTimeoutSystemDefault(); |
| |
| if (!mIsVideoCaptureIntent) { |
| mThumbController.storeData(ImageManager.getLastVideoThumbPath()); |
| } |
| |
| if (mStorageHint != null) { |
| mStorageHint.cancel(); |
| mStorageHint = null; |
| } |
| |
| mHandler.removeMessages(INIT_RECORDER); |
| } |
| |
| @Override |
| public boolean onKeyDown(int keyCode, KeyEvent event) { |
| // Do not handle any key if the activity is paused. |
| if (mPausing) { |
| return true; |
| } |
| |
| setScreenTimeoutLong(); |
| |
| switch (keyCode) { |
| case KeyEvent.KEYCODE_BACK: |
| if (mMediaRecorderRecording) { |
| mShutterButton.performClick(); |
| return true; |
| } |
| break; |
| 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) { |
| mShutterButton.performClick(); |
| return true; |
| } |
| break; |
| } |
| |
| return super.onKeyDown(keyCode, event); |
| } |
| |
| @Override |
| public boolean onKeyUp(int keyCode, KeyEvent event) { |
| switch(keyCode) { |
| case KeyEvent.KEYCODE_CAMERA: |
| mShutterButton.setPressed(false); |
| return true; |
| } |
| return super.onKeyUp(keyCode, event); |
| } |
| |
| public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { |
| if (mPausing) { |
| // We're pausing, the screen is off and we already stopped |
| // video recording. We don't want to start the camera again |
| // in this case in order to conserve power. |
| // The fact that surfaceChanged is called _after_ an onPause appears |
| // to be legitimate since in that case the lockscreen always returns |
| // to portrait orientation possibly triggering the notification. |
| return; |
| } |
| |
| if (mMediaRecorderRecording) { |
| stopVideoRecording(); |
| } |
| |
| // Start the preview if it is not started yet. Preview may be already |
| // started in onResume and then surfaceChanged is called due to |
| // orientation change. |
| if (!mPreviewing) { |
| startPreview(); |
| mRecorderInitialized = false; |
| mHandler.sendEmptyMessage(INIT_RECORDER); |
| } |
| } |
| |
| public void surfaceCreated(SurfaceHolder holder) { |
| mSurfaceHolder = holder; |
| } |
| |
| public void surfaceDestroyed(SurfaceHolder holder) { |
| mSurfaceHolder = null; |
| } |
| |
| private void gotoGallery() { |
| MenuHelper.gotoCameraVideoGallery(this); |
| } |
| |
| @Override |
| public boolean onPrepareOptionsMenu(Menu menu) { |
| super.onPrepareOptionsMenu(menu); |
| |
| for (int i = 1; i <= MenuHelper.MENU_ITEM_MAX; i++) { |
| if (i != MenuHelper.GENERIC_ITEM) { |
| menu.setGroupVisible(i, false); |
| } |
| } |
| |
| menu.setGroupVisible(MenuHelper.VIDEO_MODE_ITEM, true); |
| return true; |
| } |
| |
| @Override |
| public boolean onCreateOptionsMenu(Menu menu) { |
| super.onCreateOptionsMenu(menu); |
| |
| if (mIsVideoCaptureIntent) { |
| // No options menu for attach mode. |
| return false; |
| } else { |
| addBaseMenuItems(menu); |
| int menuFlags = MenuHelper.INCLUDE_ALL |
| & ~MenuHelper.INCLUDE_ROTATE_MENU |
| & ~MenuHelper.INCLUDE_DETAILS_MENU; |
| MenuHelper.addImageMenuItems( |
| menu, |
| menuFlags, |
| false, |
| VideoCamera.this, |
| mHandler, |
| // Handler for deletion |
| new Runnable() { |
| public void run() { |
| // What do we do here? |
| // mContentResolver.delete(uri, null, null); |
| } |
| }, |
| new MenuHelper.MenuInvoker() { |
| public void run(final MenuHelper.MenuCallback cb) { |
| } |
| }); |
| |
| MenuItem gallery = menu.add(MenuHelper.IMAGE_SAVING_ITEM, |
| MENU_SAVE_GALLERY_PHOTO, 0, |
| R.string.camera_gallery_photos_text) |
| .setOnMenuItemClickListener( |
| new MenuItem.OnMenuItemClickListener() { |
| public boolean onMenuItemClick(MenuItem item) { |
| gotoGallery(); |
| return true; |
| } |
| }); |
| gallery.setIcon(android.R.drawable.ic_menu_gallery); |
| } |
| return true; |
| } |
| |
| private boolean isVideoCaptureIntent() { |
| String action = getIntent().getAction(); |
| return (MediaStore.ACTION_VIDEO_CAPTURE.equals(action)); |
| } |
| |
| private void doReturnToCaller(boolean success) { |
| Intent resultIntent = new Intent(); |
| int resultCode; |
| if (success) { |
| resultCode = RESULT_OK; |
| resultIntent.setData(mCurrentVideoUri); |
| } else { |
| resultCode = RESULT_CANCELED; |
| } |
| setResult(resultCode, resultIntent); |
| finish(); |
| } |
| |
| /** |
| * Returns |
| * @return number of bytes available, or an ERROR code. |
| */ |
| private static long getAvailableStorage() { |
| try { |
| if (!ImageManager.hasStorage()) { |
| return NO_STORAGE_ERROR; |
| } else { |
| String storageDirectory = Environment |
| .getExternalStorageDirectory().toString(); |
| StatFs stat = new StatFs(storageDirectory); |
| return ((long) stat.getAvailableBlocks() |
| * (long) stat.getBlockSize()); |
| } |
| } catch (RuntimeException ex) { |
| // if we can't stat the filesystem then we don't know how many |
| // free bytes exist. It might be zero but just leave it |
| // blank since we really don't know. |
| return CANNOT_STAT_ERROR; |
| } |
| } |
| |
| private void cleanupEmptyFile() { |
| if (mCameraVideoFilename != null) { |
| File f = new File(mCameraVideoFilename); |
| if (f.length() == 0 && f.delete()) { |
| Log.v(TAG, "Empty video file deleted: " + mCameraVideoFilename); |
| mCameraVideoFilename = null; |
| } |
| } |
| } |
| |
| private android.hardware.Camera mCameraDevice; |
| // initializeRecorder() prepares media recorder. Return false if fails. |
| private boolean initializeRecorder() { |
| Log.v(TAG, "initializeRecorder"); |
| if (mRecorderInitialized) return true; |
| |
| Intent intent = getIntent(); |
| Bundle myExtras = intent.getExtras(); |
| |
| if (mIsVideoCaptureIntent && myExtras != null) { |
| Uri saveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT); |
| if (saveUri != null) { |
| try { |
| mCameraVideoFileDescriptor = mContentResolver. |
| openFileDescriptor(saveUri, "rw").getFileDescriptor(); |
| mCurrentVideoUri = saveUri; |
| } catch (java.io.FileNotFoundException ex) { |
| // invalid uri |
| Log.e(TAG, ex.toString()); |
| } |
| } |
| } |
| releaseMediaRecorder(); |
| |
| mMediaRecorder = new MediaRecorder(); |
| |
| mMediaRecorder.setCamera(mCameraDevice); |
| mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); |
| mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); |
| mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); |
| mMediaRecorder.setMaxDuration(mMaxVideoDurationInMs); |
| |
| if (mStorageStatus != STORAGE_STATUS_OK) { |
| mMediaRecorder.setOutputFile("/dev/null"); |
| } else { |
| // We try Uri in intent first. If it doesn't work, use our own |
| // instead. |
| if (mCameraVideoFileDescriptor != null) { |
| mMediaRecorder.setOutputFile(mCameraVideoFileDescriptor); |
| } else { |
| createVideoPath(); |
| mMediaRecorder.setOutputFile(mCameraVideoFilename); |
| } |
| } |
| |
| // Use the same frame rate for both, since internally |
| // if the frame rate is too large, it can cause camera to become |
| // unstable. We need to fix the MediaRecorder to disable the support |
| // of setting frame rate for now. |
| mMediaRecorder.setVideoFrameRate(20); |
| mMediaRecorder.setVideoSize(mVideoWidth, mVideoHeight); |
| mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H263); |
| mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); |
| mMediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface()); |
| |
| long remaining = getAvailableStorage(); |
| // remaining >= LOW_STORAGE_THRESHOLD at this point, reserve a quarter |
| // of that to make it more likely that recording can complete |
| // successfully. |
| try { |
| mMediaRecorder.setMaxFileSize(remaining - |
| LOW_STORAGE_THRESHOLD / 4); |
| } 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. |
| } |
| |
| try { |
| mMediaRecorder.prepare(); |
| } catch (IOException exception) { |
| Log.e(TAG, "prepare failed for " + mCameraVideoFilename); |
| releaseMediaRecorder(); |
| // TODO: add more exception handling logic here |
| return false; |
| } |
| mMediaRecorderRecording = false; |
| |
| // Update the last video thumbnail. |
| if (!mIsVideoCaptureIntent) { |
| if (!mThumbController.isUriValid()) { |
| updateLastVideo(); |
| } |
| mThumbController.updateDisplayIfNeeded(); |
| } |
| mRecorderInitialized = true; |
| return true; |
| } |
| |
| private void releaseMediaRecorder() { |
| Log.v(TAG, "Releasing media recorder."); |
| if (mMediaRecorder != null) { |
| cleanupEmptyFile(); |
| mMediaRecorder.reset(); |
| mMediaRecorder.release(); |
| mMediaRecorder = null; |
| } |
| } |
| |
| private int getIntPreference(String key, int defaultValue) { |
| String s = mPreferences.getString(key, ""); |
| int result = defaultValue; |
| try { |
| result = Integer.parseInt(s); |
| } catch (NumberFormatException e) { |
| // Ignore, result is already the default value. |
| } |
| return result; |
| } |
| |
| private boolean getBooleanPreference(String key, boolean defaultValue) { |
| return getIntPreference(key, defaultValue ? 1 : 0) != 0; |
| } |
| |
| private void createVideoPath() { |
| long dateTaken = System.currentTimeMillis(); |
| String title = createName(dateTaken); |
| String displayName = title + ".3gp"; // Used when emailing. |
| String cameraDirPath = ImageManager.CAMERA_IMAGE_BUCKET_NAME; |
| File cameraDir = new File(cameraDirPath); |
| cameraDir.mkdirs(); |
| SimpleDateFormat dateFormat = new SimpleDateFormat( |
| getString(R.string.video_file_name_format)); |
| Date date = new Date(dateTaken); |
| String filepart = dateFormat.format(date); |
| String filename = cameraDirPath + "/" + filepart + ".3gp"; |
| ContentValues values = new ContentValues(7); |
| values.put(Video.Media.TITLE, title); |
| values.put(Video.Media.DISPLAY_NAME, displayName); |
| values.put(Video.Media.DATE_TAKEN, dateTaken); |
| values.put(Video.Media.MIME_TYPE, "video/3gpp"); |
| values.put(Video.Media.DATA, filename); |
| mCameraVideoFilename = filename; |
| Log.v(TAG, "Current camera video filename: " + mCameraVideoFilename); |
| mCurrentVideoValues = values; |
| } |
| |
| private void registerVideo() { |
| if (mCameraVideoFileDescriptor == null) { |
| Uri videoTable = Uri.parse("content://media/external/video/media"); |
| mCurrentVideoValues.put(Video.Media.SIZE, |
| new File(mCurrentVideoFilename).length()); |
| mCurrentVideoUri = mContentResolver.insert(videoTable, |
| mCurrentVideoValues); |
| Log.v(TAG, "Current video URI: " + mCurrentVideoUri); |
| } |
| mCurrentVideoValues = null; |
| } |
| |
| private void deleteCurrentVideo() { |
| if (mCurrentVideoFilename != null) { |
| deleteVideoFile(mCurrentVideoFilename); |
| mCurrentVideoFilename = null; |
| } |
| if (mCurrentVideoUri != null) { |
| mContentResolver.delete(mCurrentVideoUri, null, null); |
| mCurrentVideoUri = null; |
| } |
| updateAndShowStorageHint(true); |
| } |
| |
| 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 void addBaseMenuItems(Menu menu) { |
| MenuHelper.addSwitchModeMenuItem(menu, this, false); |
| { |
| MenuItem gallery = menu.add(MenuHelper.IMAGE_MODE_ITEM, |
| MENU_GALLERY_PHOTOS, 0, R.string.camera_gallery_photos_text) |
| .setOnMenuItemClickListener(new OnMenuItemClickListener() { |
| public boolean onMenuItemClick(MenuItem item) { |
| gotoGallery(); |
| return true; |
| } |
| }); |
| gallery.setIcon(android.R.drawable.ic_menu_gallery); |
| mGalleryItems.add(gallery); |
| } |
| { |
| MenuItem gallery = menu.add(MenuHelper.VIDEO_MODE_ITEM, |
| MENU_GALLERY_VIDEOS, 0, R.string.camera_gallery_photos_text) |
| .setOnMenuItemClickListener(new OnMenuItemClickListener() { |
| public boolean onMenuItemClick(MenuItem item) { |
| gotoGallery(); |
| return true; |
| } |
| }); |
| gallery.setIcon(android.R.drawable.ic_menu_gallery); |
| mGalleryItems.add(gallery); |
| } |
| |
| MenuItem item = menu.add(MenuHelper.GENERIC_ITEM, MENU_SETTINGS, 0, |
| R.string.settings) |
| .setOnMenuItemClickListener(new OnMenuItemClickListener() { |
| public boolean onMenuItemClick(MenuItem item) { |
| // Keep the camera instance for a while. |
| // This avoids re-opening the camera and saves time. |
| CameraHolder.instance().keep(); |
| |
| Intent intent = new Intent(); |
| intent.setClass(VideoCamera.this, CameraSettings.class); |
| startActivity(intent); |
| return true; |
| } |
| }); |
| item.setIcon(android.R.drawable.ic_menu_preferences); |
| } |
| |
| // from MediaRecorder.OnErrorListener |
| public void onError(MediaRecorder mr, int what, int extra) { |
| if (what == MediaRecorder.MEDIA_RECORDER_ERROR_UNKNOWN) { |
| // We may have run out of space on the sdcard. |
| stopVideoRecording(); |
| updateAndShowStorageHint(true); |
| } |
| } |
| |
| // from MediaRecorder.OnInfoListener |
| public void onInfo(MediaRecorder mr, int what, int extra) { |
| if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED) { |
| mShutterButton.performClick(); |
| } else if (what |
| == MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED) { |
| mShutterButton.performClick(); |
| updateAndShowStorageHint(true); |
| } |
| } |
| |
| /* |
| * 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"); |
| |
| sendBroadcast(i); |
| } |
| |
| private void startVideoRecording() { |
| Log.v(TAG, "startVideoRecording"); |
| if (!mMediaRecorderRecording) { |
| |
| if (mStorageStatus != STORAGE_STATUS_OK) { |
| Log.v(TAG, "Storage issue, ignore the start request"); |
| return; |
| } |
| |
| // Check mMediaRecorder to see whether it is initialized or not. |
| if (mMediaRecorder == null) { |
| Log.e(TAG, "MediaRecorder is not initialized."); |
| return; |
| } |
| |
| pauseAudioPlayback(); |
| |
| try { |
| mMediaRecorder.setOnErrorListener(this); |
| mMediaRecorder.setOnInfoListener(this); |
| mMediaRecorder.start(); // Recording is now started |
| } catch (RuntimeException e) { |
| Log.e(TAG, "Could not start media recorder. ", e); |
| return; |
| } |
| mMediaRecorderRecording = true; |
| mRecordingStartTime = SystemClock.uptimeMillis(); |
| updateRecordingIndicator(false); |
| mRecordingTimeView.setText(""); |
| mRecordingTimeView.setVisibility(View.VISIBLE); |
| mHandler.sendEmptyMessage(UPDATE_RECORD_TIME); |
| setScreenTimeoutInfinite(); |
| } |
| } |
| |
| private void updateRecordingIndicator(boolean showRecording) { |
| int drawableId = showRecording |
| ? R.drawable.btn_ic_video_record |
| : R.drawable.btn_ic_video_record_stop; |
| Drawable drawable = getResources().getDrawable(drawableId); |
| mShutterButton.setImageDrawable(drawable); |
| } |
| |
| private void stopVideoRecordingAndGetThumbnail() { |
| stopVideoRecording(); |
| acquireVideoThumb(); |
| } |
| |
| private void stopVideoRecordingAndShowReview() { |
| stopVideoRecording(); |
| if (mThumbController.isUriValid()) { |
| Uri targetUri = mThumbController.getUri(); |
| Intent intent = new Intent(this, ReviewImage.class); |
| intent.setData(targetUri); |
| intent.putExtra(MediaStore.EXTRA_FULL_SCREEN, true); |
| intent.putExtra(MediaStore.EXTRA_SHOW_ACTION_ICONS, true); |
| intent.putExtra("com.android.camera.ReviewMode", true); |
| try { |
| startActivity(intent); |
| } catch (ActivityNotFoundException ex) { |
| Log.e(TAG, "review video fail", ex); |
| } |
| } else { |
| Log.e(TAG, "Can't view last video."); |
| } |
| } |
| |
| private void stopVideoRecording() { |
| Log.v(TAG, "stopVideoRecording"); |
| boolean needToRegisterRecording = false; |
| if (mMediaRecorderRecording || mMediaRecorder != null) { |
| if (mMediaRecorderRecording && mMediaRecorder != null) { |
| try { |
| mMediaRecorder.setOnErrorListener(null); |
| mMediaRecorder.setOnInfoListener(null); |
| mMediaRecorder.stop(); |
| } catch (RuntimeException e) { |
| Log.e(TAG, "stop fail: " + e.getMessage()); |
| } |
| |
| mCurrentVideoFilename = mCameraVideoFilename; |
| Log.v(TAG, "Setting current video filename: " |
| + mCurrentVideoFilename); |
| needToRegisterRecording = true; |
| mMediaRecorderRecording = false; |
| } |
| releaseMediaRecorder(); |
| updateRecordingIndicator(true); |
| mRecordingTimeView.setVisibility(View.GONE); |
| setScreenTimeoutLong(); |
| } |
| if (needToRegisterRecording && mStorageStatus == STORAGE_STATUS_OK) { |
| registerVideo(); |
| } |
| |
| mCameraVideoFilename = null; |
| mCameraVideoFileDescriptor = null; |
| } |
| |
| private void setScreenTimeoutSystemDefault() { |
| mHandler.removeMessages(CLEAR_SCREEN_DELAY); |
| clearScreenOnFlag(); |
| } |
| |
| private void setScreenTimeoutLong() { |
| mHandler.removeMessages(CLEAR_SCREEN_DELAY); |
| setScreenOnFlag(); |
| mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); |
| } |
| |
| private void setScreenTimeoutInfinite() { |
| mHandler.removeMessages(CLEAR_SCREEN_DELAY); |
| setScreenOnFlag(); |
| } |
| |
| private void clearScreenOnFlag() { |
| Window w = getWindow(); |
| final int flag = WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; |
| if ((w.getAttributes().flags & flag) != 0) { |
| w.clearFlags(flag); |
| } |
| } |
| |
| private void setScreenOnFlag() { |
| Window w = getWindow(); |
| final int flag = WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; |
| if ((w.getAttributes().flags & flag) == 0) { |
| w.addFlags(flag); |
| } |
| } |
| |
| private void hideAlertAndInitializeRecorder() { |
| mRecorderInitialized = false; |
| mHandler.sendEmptyMessage(INIT_RECORDER); |
| } |
| |
| private void acquireVideoThumb() { |
| Bitmap videoFrame = Util.createVideoThumbnail(mCurrentVideoFilename); |
| mThumbController.setData(mCurrentVideoUri, videoFrame); |
| } |
| |
| private static ImageManager.DataLocation dataLocation() { |
| return ImageManager.DataLocation.EXTERNAL; |
| } |
| |
| private void updateLastVideo() { |
| IImageList list = ImageManager.allImages( |
| mContentResolver, |
| dataLocation(), |
| ImageManager.INCLUDE_VIDEOS, |
| ImageManager.SORT_ASCENDING, |
| ImageManager.CAMERA_IMAGE_BUCKET_ID); |
| int count = list.getCount(); |
| if (count > 0) { |
| IImage image = list.getImageAt(count - 1); |
| Uri uri = image.fullSizeImageUri(); |
| mThumbController.setData(uri, image.miniThumbBitmap()); |
| } else { |
| mThumbController.setData(null, null); |
| } |
| list.deactivate(); |
| } |
| |
| 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 = |
| (delta >= mMaxVideoDurationInMs - 60000); |
| |
| if (countdownRemainingTime) { |
| delta = Math.max(0, mMaxVideoDurationInMs - delta); |
| } |
| |
| long seconds = (delta + 500) / 1000; // round to nearest |
| long minutes = seconds / 60; |
| long hours = minutes / 60; |
| long remainderMinutes = minutes - (hours * 60); |
| long remainderSeconds = seconds - (minutes * 60); |
| |
| String secondsString = Long.toString(remainderSeconds); |
| if (secondsString.length() < 2) { |
| secondsString = "0" + secondsString; |
| } |
| String minutesString = Long.toString(remainderMinutes); |
| if (minutesString.length() < 2) { |
| minutesString = "0" + minutesString; |
| } |
| String text = minutesString + ":" + secondsString; |
| if (hours > 0) { |
| String hoursString = Long.toString(hours); |
| if (hoursString.length() < 2) { |
| hoursString = "0" + hoursString; |
| } |
| text = hoursString + ":" + text; |
| } |
| mRecordingTimeView.setText(text); |
| |
| if (mRecordingTimeCountsDown != countdownRemainingTime) { |
| // Avoid setting the color on every update, do it only |
| // when it needs changing. |
| |
| mRecordingTimeCountsDown = countdownRemainingTime; |
| |
| int color = getResources().getColor( |
| countdownRemainingTime |
| ? R.color.recording_time_remaining_text |
| : R.color.recording_time_elapsed_text); |
| |
| mRecordingTimeView.setTextColor(color); |
| } |
| |
| // Work around a limitation of the T-Mobile G1: The T-Mobile |
| // hardware blitter can't pixel-accurately scale and clip at the |
| // same time, and the SurfaceFlinger doesn't attempt to work around |
| // this limitation. In order to avoid visual corruption we must |
| // manually refresh the entire surface view when changing any |
| // overlapping view's contents. |
| mVideoPreview.invalidate(); |
| mHandler.sendEmptyMessageDelayed(UPDATE_RECORD_TIME, 1000); |
| } |
| } |