/* * 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 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.content.SharedPreferences.OnSharedPreferenceChangeListener; import android.content.res.Resources; import android.graphics.Bitmap; import android.graphics.drawable.Drawable; import android.hardware.Camera.Parameters; import android.hardware.Camera.Size; import android.media.MediaRecorder; import android.media.ThumbnailUtil; import android.net.Uri; import android.os.Build; 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.os.SystemProperties; import android.preference.PreferenceManager; import android.preference.PreferenceScreen; 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.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.MotionEvent; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.view.ViewGroup; import android.view.Window; import android.view.WindowManager; import android.view.MenuItem.OnMenuItemClickListener; import android.view.animation.AlphaAnimation; import android.view.animation.Animation; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; import com.android.camera.PreviewFrameLayout.OnSizeChangedListener; import com.android.camera.gallery.IImage; import com.android.camera.gallery.IImageList; import java.io.File; import java.io.FileDescriptor; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; /** * The Camcorder activity. */ public class VideoCamera extends Activity implements View.OnClickListener, ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback, MediaRecorder.OnErrorListener, MediaRecorder.OnInfoListener, Switcher.OnSwitchListener, OnSharedPreferenceChangeListener, OnScreenSettings.OnVisibilityChangedListener, PreviewFrameLayout.OnSizeChangedListener { 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; private static final boolean SWITCH_CAMERA = true; private static final boolean SWITCH_VIDEO = false; private SharedPreferences mPreferences; private PreviewFrameLayout mPreviewFrameLayout; private SurfaceView mVideoPreview; private SurfaceHolder mSurfaceHolder = null; private ImageView mVideoFrame; private boolean mIsVideoCaptureIntent; // mLastPictureButton and mThumbController // are non-null only if mIsVideoCaptureIntent is true. private ImageView mLastPictureButton; private ThumbnailController mThumbController; private boolean mStartPreviewFail = false; 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; private IconIndicator mWhitebalanceIndicator; private MediaRecorderProfile mProfile; // The video duration limit. 0 menas no limit. private int mMaxVideoDurationInMs; boolean mPausing = false; boolean mPreviewing = false; // True if preview is started. private ContentResolver mContentResolver; private ShutterButton mShutterButton; private TextView mRecordingTimeView; private View mGripper; private Switcher mSwitcher; private boolean mRecordingTimeCountsDown = false; private final ArrayList mGalleryItems = new ArrayList(); private final Handler mHandler = new MainHandler(); private Parameters mParameters; private OnScreenSettings mSettings; // 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: { getWindow().clearFlags( WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); break; } case UPDATE_RECORD_TIME: { updateRecordingTime(); break; } case INIT_RECORDER: { initializeRecorder(); 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)) { updateAndShowStorageHint(false); stopVideoRecording(); } else if (action.equals(Intent.ACTION_MEDIA_MOUNTED)) { updateAndShowStorageHint(true); 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(); } private void showCameraBusyAndFinish() { Resources ress = getResources(); Util.showFatalErrorAndFinish(VideoCamera.this, ress.getString(R.string.camera_error_title), ress.getString(R.string.cannot_connect_camera)); } /** Called with the activity is first created. */ @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); mPreferences = PreferenceManager.getDefaultSharedPreferences(this); CameraSettings.upgradePreferences(mPreferences); readVideoPreferences(); /* * To reduce startup time, we start the preview in another thread. * We make sure the preview is started at the end of onCreate. */ Thread startPreviewThread = new Thread(new Runnable() { public void run() { try { mStartPreviewFail = false; startPreview(); } catch (CameraHardwareException e) { // In eng build, we throw the exception so that test tool // can detect it and report it if ("eng".equals(Build.TYPE)) { throw new RuntimeException(e); } mStartPreviewFail = true; } } }); startPreviewThread.start(); mContentResolver = getContentResolver(); requestWindowFeature(Window.FEATURE_PROGRESS); setContentView(R.layout.video_camera); mPreviewFrameLayout = (PreviewFrameLayout) findViewById(R.id.frame_layout); mPreviewFrameLayout.setOnSizeChangedListener(this); resizeForPreviewAspectRatio(); mVideoPreview = (SurfaceView) findViewById(R.id.camera_preview); mVideoFrame = (ImageView) findViewById(R.id.video_frame); // 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); mIsVideoCaptureIntent = isVideoCaptureIntent(); mRecordingTimeView = (TextView) findViewById(R.id.recording_time); ViewGroup rootView = (ViewGroup) findViewById(R.id.video_camera); LayoutInflater inflater = this.getLayoutInflater(); if (!mIsVideoCaptureIntent) { View controlBar = inflater.inflate( R.layout.camera_control, rootView); mLastPictureButton = (ImageView) controlBar.findViewById(R.id.review_thumbnail); mThumbController = new ThumbnailController( getResources(), mLastPictureButton, mContentResolver); mLastPictureButton.setOnClickListener(this); mThumbController.loadData(ImageManager.getLastVideoThumbPath()); mSwitcher = ((Switcher) findViewById(R.id.camera_switch)); mSwitcher.setOnSwitchListener(this); mSwitcher.addTouchView(findViewById(R.id.camera_switch_set)); } else { View controlBar = inflater.inflate( R.layout.attach_camera_control, rootView); controlBar.findViewById(R.id.btn_cancel).setOnClickListener(this); ImageView retake = (ImageView) controlBar.findViewById(R.id.btn_retake); retake.setOnClickListener(this); retake.setImageResource(R.drawable.btn_ic_review_retake_video); controlBar.findViewById(R.id.btn_play).setOnClickListener(this); controlBar.findViewById(R.id.btn_done).setOnClickListener(this); } mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); mShutterButton.setImageResource(R.drawable.btn_ic_video_record); mShutterButton.setOnShutterButtonListener(this); mShutterButton.requestFocus(); mGripper = findViewById(R.id.btn_gripper); mGripper.setOnTouchListener(new GripperTouchListener()); mWhitebalanceIndicator = (IconIndicator) findViewById(R.id.whitebalance_icon); // Make sure preview is started. try { startPreviewThread.join(); if (mStartPreviewFail) { showCameraBusyAndFinish(); return; } } catch (InterruptedException ex) { // ignore } } @Override protected void onStart() { super.onStart(); if (!mIsVideoCaptureIntent) { mSwitcher.setSwitch(SWITCH_VIDEO); } } 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(); } } private void startPlayVideoActivity() { 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); } } public void onClick(View v) { switch (v.getId()) { case R.id.btn_retake: discardCurrentVideoAndInitRecorder(); break; case R.id.btn_play: startPlayVideoActivity(); break; case R.id.btn_done: doReturnToCaller(true); break; case R.id.btn_cancel: stopVideoRecording(); 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) { stopVideoRecordingAndShowAlert(); } else { stopVideoRecordingAndGetThumbnail(); initializeRecorder(); } } else if (mMediaRecorder != null) { // 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 readVideoPreferences() { boolean videoQualityHigh = getBooleanPreference(CameraSettings.KEY_VIDEO_QUALITY, CameraSettings.DEFAULT_VIDEO_QUALITY_VALUE); // Set video quality. Intent intent = getIntent(); if (intent.hasExtra(MediaStore.EXTRA_VIDEO_QUALITY)) { int extraVideoQuality = intent.getIntExtra(MediaStore.EXTRA_VIDEO_QUALITY, 0); videoQualityHigh = (extraVideoQuality > 0); } // 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 { int minutes = getIntPreference(CameraSettings.KEY_VIDEO_DURATION, CameraSettings.DEFAULT_VIDEO_DURATION_VALUE); if (minutes == -1) { // This is a special case: the value -1 means we want to use the // device-dependent duration for MMS messages. The value is // represented in seconds. mMaxVideoDurationInMs = 1000 * CameraSettings.MMS_VIDEO_DURATION; } else { // 1 minute = 60000ms mMaxVideoDurationInMs = 60000 * minutes; } } mProfile = new MediaRecorderProfile(videoQualityHigh); } private void resizeForPreviewAspectRatio() { mPreviewFrameLayout.setAspectRatio( (double) mProfile.mVideoWidth / mProfile.mVideoHeight); } @Override public void onResume() { super.onResume(); mPausing = false; readVideoPreferences(); resizeForPreviewAspectRatio(); if (!mPreviewing && !mStartPreviewFail) { try { startPreview(); } catch (CameraHardwareException e) { showCameraBusyAndFinish(); return; } } keepScreenOnAwhile(); // 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"); mReceiver = new MyBroadcastReceiver(); registerReceiver(mReceiver, intentFilter); mStorageStatus = getStorageStatus(true); mHandler.postDelayed(new Runnable() { public void run() { showStorageHint(); } }, 200); if (mSurfaceHolder != null) { mHandler.sendEmptyMessage(INIT_RECORDER); } } private void setPreviewDisplay(SurfaceHolder holder) { try { mCameraDevice.setPreviewDisplay(holder); } catch (Throwable ex) { closeCamera(); throw new RuntimeException("setPreviewDisplay failed", ex); } } private void startPreview() throws CameraHardwareException { 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(); } mCameraDevice.lock(); setCameraParameters(); setPreviewDisplay(mSurfaceHolder); try { mCameraDevice.startPreview(); mPreviewing = true; } catch (Throwable ex) { closeCamera(); throw new RuntimeException("startPreview failed", ex); } // If setPreviewDisplay has been set with a valid surface, unlock now. // If surface is null, unlock later. Otherwise, setPreviewDisplay in // surfaceChanged will fail. if (mSurfaceHolder != null) { 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 protected void onPause() { super.onPause(); mPausing = true; if (mSettings != null && mSettings.isVisible()) { mSettings.setVisible(false); } // This is similar to what mShutterButton.performClick() does, // but not quite the same. if (mMediaRecorderRecording) { if (mIsVideoCaptureIntent) { stopVideoRecording(); showAlert(); } else { stopVideoRecordingAndGetThumbnail(); } } else { stopVideoRecording(); } closeCamera(); if (mReceiver != null) { unregisterReceiver(mReceiver); mReceiver = null; } resetScreenOn(); if (!mIsVideoCaptureIntent) { mThumbController.storeData(ImageManager.getLastVideoThumbPath()); } if (mStorageHint != null) { mStorageHint.cancel(); mStorageHint = null; } mHandler.removeMessages(INIT_RECORDER); } @Override public void onUserInteraction() { super.onUserInteraction(); if (!mMediaRecorderRecording) keepScreenOnAwhile(); } @Override public void onBackPressed() { if (mPausing) return; if (mMediaRecorderRecording) { mShutterButton.performClick(); return; } super.onBackPressed(); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { // Do not handle any key if the activity is paused. if (mPausing) { 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) { 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; case KeyEvent.KEYCODE_MENU: if (this.mIsVideoCaptureIntent) { showOnScreenSettings(); return true; } break; } return super.onKeyUp(keyCode, event); } public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { // Make sure we have a surface in the holder before proceeding. if (holder.getSurface() == null) { Log.d(TAG, "holder.getSurface() == null"); return; } 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; } // The mCameraDevice will be null if it is fail to connect to the // camera hardware. In this case we will show a dialog and then // finish the activity, so it's OK to ignore it. if (mCameraDevice == null) return; if (mMediaRecorderRecording) { stopVideoRecording(); } // Set preview display if the surface is being created. Preview was // already started. if (holder.isCreating()) { setPreviewDisplay(holder); mCameraDevice.unlock(); 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 onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); if (mIsVideoCaptureIntent) { // No options menu for attach mode. return false; } else { addBaseMenuItems(menu); } 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; // Prepares media recorder. private void initializeRecorder() { Log.v(TAG, "initializeRecorder"); if (mMediaRecorder != null) return; // We will call initializeRecorder() again when the alert is hidden. // If the mCameraDevice is null, then this activity is going to finish if (isAlertVisible() || mCameraDevice == null) return; Intent intent = getIntent(); Bundle myExtras = intent.getExtras(); long requestedSizeLimit = 0; 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()); } } requestedSizeLimit = myExtras.getLong(MediaStore.EXTRA_SIZE_LIMIT); } mMediaRecorder = new MediaRecorder(); mMediaRecorder.setCamera(mCameraDevice); mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); mMediaRecorder.setOutputFormat(mProfile.mOutputFormat); mMediaRecorder.setMaxDuration(mMaxVideoDurationInMs); // Set output file. if (mStorageStatus != STORAGE_STATUS_OK) { mMediaRecorder.setOutputFile("/dev/null"); } else { // Try Uri in the intent first. If it doesn't exist, 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(mProfile.mVideoFps); mMediaRecorder.setVideoSize( mProfile.mVideoWidth, mProfile.mVideoHeight); mMediaRecorder.setParameters(String.format( "video-param-encoding-bitrate=%d", mProfile.mVideoBitrate)); mMediaRecorder.setParameters(String.format( "audio-param-encoding-bitrate=%d", mProfile.mAudioBitrate)); mMediaRecorder.setParameters(String.format( "audio-param-number-of-channels=%d", mProfile.mAudioChannels)); mMediaRecorder.setParameters(String.format( "audio-param-sampling-rate=%d", mProfile.mAudioSamplingRate)); mMediaRecorder.setVideoEncoder(mProfile.mVideoEncoder); mMediaRecorder.setAudioEncoder(mProfile.mAudioEncoder); mMediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface()); // Set maximum file size. // remaining >= LOW_STORAGE_THRESHOLD at this point, reserve a quarter // of that to make it more likely that recording can complete // successfully. long maxFileSize = getAvailableStorage() - LOW_STORAGE_THRESHOLD / 4; 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. } try { mMediaRecorder.prepare(); } catch (IOException e) { Log.e(TAG, "prepare failed for " + mCameraVideoFilename); releaseMediaRecorder(); throw new RuntimeException(e); } mMediaRecorderRecording = false; // Update the last video thumbnail. if (!mIsVideoCaptureIntent) { if (!mThumbController.isUriValid()) { updateLastVideo(); } mThumbController.updateDisplayIfNeeded(); } } 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) { MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, MenuHelper.POSITION_GOTO_GALLERY, 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(Menu.NONE, Menu.NONE, MenuHelper.POSITION_CAMERA_SETTING, R.string.settings) .setOnMenuItemClickListener(new OnMenuItemClickListener() { public boolean onMenuItemClick(MenuItem item) { showOnScreenSettings(); return true; }}); item.setIcon(android.R.drawable.ic_menu_preferences); } private void showOnScreenSettings() { if (mSettings == null) { mSettings = new OnScreenSettings( findViewById(R.id.camera_preview)); CameraSettings helper = new CameraSettings(this, mParameters); PreferenceScreen screen = helper .getPreferenceScreen(R.xml.video_preferences); if (mIsVideoCaptureIntent) { screen = filterPreferenceScreenByIntent(screen); } mSettings.setPreferenceScreen(screen); mSettings.setOnVisibilityChangedListener(this); } mSettings.setVisible(true); } private PreferenceScreen filterPreferenceScreenByIntent( PreferenceScreen screen) { Intent intent = 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_DURATION); } return screen; } private class GripperTouchListener implements View.OnTouchListener { public boolean onTouch(View view, MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: return true; case MotionEvent.ACTION_UP: showOnScreenSettings(); return true; } return false; } } public void onVisibilityChanged(boolean visible) { // At this point, we are not recording. mGripper.setVisibility(visible ? View.INVISIBLE : View.VISIBLE); if (visible) { releaseMediaRecorder(); mPreferences.registerOnSharedPreferenceChangeListener(this); } else { initializeRecorder(); mPreferences.unregisterOnSharedPreferenceChangeListener(this); } } // 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(); // Show the toast. Toast.makeText(VideoCamera.this, 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"); 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); updateRecordingTime(); keepScreenOn(); mGripper.setVisibility(View.INVISIBLE); } } 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 stopVideoRecordingAndShowAlert() { stopVideoRecording(); showAlert(); } private void showAlert() { fadeOut(findViewById(R.id.shutter_button)); if (mCurrentVideoFilename != null) { mVideoFrame.setImageBitmap( ThumbnailUtil.createVideoThumbnail(mCurrentVideoFilename)); mVideoFrame.setVisibility(View.VISIBLE); } int[] pickIds = {R.id.btn_retake, R.id.btn_done, R.id.btn_play}; for (int id : pickIds) { View button = findViewById(id); fadeIn(((View) button.getParent())); } } private void hideAlert() { mVideoFrame.setVisibility(View.INVISIBLE); fadeIn(findViewById(R.id.shutter_button)); int[] pickIds = {R.id.btn_retake, R.id.btn_done, R.id.btn_play}; for (int id : pickIds) { View button = findViewById(id); fadeOut(((View) button.getParent())); } } private static void fadeIn(View view) { view.setVisibility(View.VISIBLE); Animation animation = new AlphaAnimation(0F, 1F); animation.setDuration(500); view.startAnimation(animation); } private static void fadeOut(View view) { view.setVisibility(View.INVISIBLE); Animation animation = new AlphaAnimation(1F, 0F); animation.setDuration(500); view.startAnimation(animation); } private boolean isAlertVisible() { return this.mVideoFrame.getVisibility() == View.VISIBLE; } 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); keepScreenOnAwhile(); mGripper.setVisibility(View.VISIBLE); } if (needToRegisterRecording && mStorageStatus == STORAGE_STATUS_OK) { registerVideo(); } mCameraVideoFilename = null; mCameraVideoFileDescriptor = null; } private void resetScreenOn() { mHandler.removeMessages(CLEAR_SCREEN_DELAY); getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); } private void keepScreenOnAwhile() { mHandler.removeMessages(CLEAR_SCREEN_DELAY); getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY); } private void keepScreenOn() { mHandler.removeMessages(CLEAR_SCREEN_DELAY); getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); } private void hideAlertAndInitializeRecorder() { hideAlert(); mHandler.sendEmptyMessage(INIT_RECORDER); } private void acquireVideoThumb() { Bitmap videoFrame = ThumbnailUtil.createVideoThumbnail(mCurrentVideoFilename); mThumbController.setData(mCurrentVideoUri, videoFrame); } private static ImageManager.DataLocation dataLocation() { return ImageManager.DataLocation.EXTERNAL; } private void updateLastVideo() { IImageList list = ImageManager.makeImageList( 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.close(); } 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 next_update_delay = 1000 - (delta % 1000); long seconds; if (countdownRemainingTime) { delta = Math.max(0, mMaxVideoDurationInMs - delta); seconds = (delta + 999) / 1000; } else { seconds = delta / 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, next_update_delay); } private void setCameraParameters() { mParameters = mCameraDevice.getParameters(); mParameters.setPreviewSize(mProfile.mVideoWidth, mProfile.mVideoHeight); mParameters.setPreviewFrameRate(mProfile.mVideoFps); // Set white balance parameter. String whiteBalance = Parameters.WHITE_BALANCE_AUTO; if (mParameters.getSupportedWhiteBalance() != null) { whiteBalance = mPreferences.getString( CameraSettings.KEY_WHITE_BALANCE, getString(R.string.pref_camera_whitebalance_default)); mParameters.setWhiteBalance(whiteBalance); } // Set color effect parameter. if (mParameters.getSupportedColorEffects() != null) { String colorEffect = mPreferences.getString( CameraSettings.KEY_COLOR_EFFECT, getString(R.string.pref_camera_coloreffect_default)); mParameters.setColorEffect(colorEffect); } mCameraDevice.setParameters(mParameters); final String finalWhiteBalance = whiteBalance; // It can be execute from the startPreview thread, so we post it // to the main UI thread mHandler.post(new Runnable() { public void run() { mWhitebalanceIndicator.setMode(finalWhiteBalance); } }); } public boolean onSwitchChanged(Switcher source, boolean onOff) { if (onOff == SWITCH_CAMERA) { MenuHelper.gotoCameraMode(this); finish(); } return true; } public void onSharedPreferenceChanged( SharedPreferences preferences, String key) { // ignore the events after "onPause()" or preview has not started yet if (mPausing) return; if (CameraSettings.KEY_VIDEO_DURATION.equals(key) || CameraSettings.KEY_VIDEO_QUALITY.equals(key)) { readVideoPreferences(); } // If mCameraDevice is not ready then we can set the parameter in // startPreview(). if (mCameraDevice == null) return; // We need to restart the preview if preview size is changed. Size size = mParameters.getPreviewSize(); if (size.width != mProfile.mVideoWidth || size.height != mProfile.mVideoHeight) { // It is assumed media recorder is released before // onSharedPreferenceChanged, so we can close the camera here. closeCamera(); try { resizeForPreviewAspectRatio(); startPreview(); // Parameters will be set in startPreview(). } catch (CameraHardwareException e) { showCameraBusyAndFinish(); } } else { try { // We need to lock the camera before writing parameters. mCameraDevice.lock(); } catch (RuntimeException e) { // When preferences are added for the first time, this method // will be called. But OnScreenSetting is not displayed yet and // media recorder still owns the camera. Lock will fail and we // just ignore it. return; } setCameraParameters(); mCameraDevice.unlock(); } } public void onSizeChanged() { if (mSettings != null) { mSettings.updateLayout(); } } } // // DefaultHashMap is a HashMap which returns a default value if the specified // key is not found. // @SuppressWarnings("serial") class DefaultHashMap extends HashMap { private V mDefaultValue; public void putDefault(V defaultValue) { mDefaultValue = defaultValue; } @Override public V get(Object key) { V value = super.get(key); return (value == null) ? mDefaultValue : value; } } // // MediaRecorderProfile reads from system properties to determine the proper // values for various parameters for MediaRecorder. // class MediaRecorderProfile { @SuppressWarnings("unused") private static final String TAG = "MediaRecorderProfile"; public final boolean mHiQuality; public final int mOutputFormat; public final int mVideoEncoder; public final int mAudioEncoder; public final int mVideoWidth; public final int mVideoHeight; public final int mVideoFps; public final int mVideoBitrate; public final int mAudioBitrate; public final int mAudioChannels; public final int mAudioSamplingRate; MediaRecorderProfile(boolean hiQuality) { mHiQuality = hiQuality; mOutputFormat = getFromTable("ro.media.enc.hprof.file.format", "ro.media.enc.lprof.file.format", OUTPUT_FORMAT_TABLE); mVideoEncoder = getFromTable("ro.media.enc.hprof.codec.vid", "ro.media.enc.lprof.codec.vid", VIDEO_ENCODER_TABLE); mAudioEncoder = getFromTable("ro.media.enc.hprof.codec.aud", "ro.media.enc.lprof.codec.aud", AUDIO_ENCODER_TABLE); mVideoWidth = getInt("ro.media.enc.hprof.vid.width", "ro.media.enc.lprof.vid.width", 352, 176); mVideoHeight = getInt("ro.media.enc.hprof.vid.height", "ro.media.enc.lprof.vid.height", 288, 144); mVideoFps = getInt("ro.media.enc.hprof.vid.fps", "ro.media.enc.lprof.vid.fps", 20, 20); mVideoBitrate = getInt("ro.media.enc.hprof.vid.bps", "ro.media.enc.lprof.vid.bps", 360000, 192000); mAudioBitrate = getInt("ro.media.enc.hprof.aud.bps", "ro.media.enc.lprof.aud.bps", 23450, 23450); mAudioChannels = getInt("ro.media.enc.hprof.aud.ch", "ro.media.enc.lprof.aud.ch", 1, 1); mAudioSamplingRate = getInt("ro.media.enc.hprof.aud.hz", "ro.media.enc.lprof.aud.hz", 8000, 8000); } private int getFromTable(String highKey, String lowKey, DefaultHashMap table) { String s; s = SystemProperties.get(mHiQuality ? highKey : lowKey); return table.get(s); } private int getInt(String highKey, String lowKey, int highDefault, int lowDefault) { String key = mHiQuality ? highKey : lowKey; int defaultValue = mHiQuality ? highDefault : lowDefault; return SystemProperties.getInt(key, defaultValue); } private static final DefaultHashMap OUTPUT_FORMAT_TABLE = new DefaultHashMap(); private static final DefaultHashMap VIDEO_ENCODER_TABLE = new DefaultHashMap(); private static final DefaultHashMap AUDIO_ENCODER_TABLE = new DefaultHashMap(); static { OUTPUT_FORMAT_TABLE.put("3gp", MediaRecorder.OutputFormat.THREE_GPP); OUTPUT_FORMAT_TABLE.put("mp4", MediaRecorder.OutputFormat.MPEG_4); OUTPUT_FORMAT_TABLE.putDefault(MediaRecorder.OutputFormat.DEFAULT); VIDEO_ENCODER_TABLE.put("h263", MediaRecorder.VideoEncoder.H263); VIDEO_ENCODER_TABLE.put("h264", MediaRecorder.VideoEncoder.H264); VIDEO_ENCODER_TABLE.put("m4v", MediaRecorder.VideoEncoder.MPEG_4_SP); VIDEO_ENCODER_TABLE.putDefault(MediaRecorder.VideoEncoder.DEFAULT); AUDIO_ENCODER_TABLE.put("amrnb", MediaRecorder.AudioEncoder.AMR_NB); AUDIO_ENCODER_TABLE.put("amrwb", MediaRecorder.AudioEncoder.AMR_WB); AUDIO_ENCODER_TABLE.put("aac", MediaRecorder.AudioEncoder.AAC); AUDIO_ENCODER_TABLE.put("aacplus", MediaRecorder.AudioEncoder.AAC_PLUS); AUDIO_ENCODER_TABLE.put("eaacplus", MediaRecorder.AudioEncoder.EAAC_PLUS); AUDIO_ENCODER_TABLE.putDefault(MediaRecorder.AudioEncoder.DEFAULT); } }