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|
/*
* 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 NoSearchActivity 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 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<MenuItem> mGalleryItems = new ArrayList<MenuItem>();
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());
// 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 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.review_thumbnail: {
stopVideoRecordingAndShowReview();
initializeRecorder();
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 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);
}
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.
if (mParameters.getSupportedWhiteBalance() != null) {
String 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);
}
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<K, V> extends HashMap<K, V> {
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<String, Integer> 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<String, Integer>
OUTPUT_FORMAT_TABLE = new DefaultHashMap<String, Integer>();
private static final DefaultHashMap<String, Integer>
VIDEO_ENCODER_TABLE = new DefaultHashMap<String, Integer>();
private static final DefaultHashMap<String, Integer>
AUDIO_ENCODER_TABLE = new DefaultHashMap<String, Integer>();
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);
}
}
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