spydroid-ipcamera这个项目能够将Android设备变成一个漂亮的网络摄像机 ip camera。Spydroid是一个很小的app，能够将手机的摄像头和麦克风streams至你的浏览器或VLC。它是市场上最强大的工具，一种方法用来从智能手机传输音频/视频到您的电脑。H.264支持分辨率高达1080p和在手机上运行ICS或JB就能够支持AAC格式。
需要注意的是，此解决方案仅限于局域网，要想在公网环境下实现视频监控，则需要STUN协议的支持。
源码片段
public class SpydroidActivity extends FragmentActivity { static final public String TAG = "SpydroidActivity"; public final int HANDSET = 0x01; public final int TABLET = 0x02; // We assume that the device is a phone public int device = HANDSET; private ViewPager mViewPager; private PowerManager.WakeLock mWakeLock; private SectionsPagerAdapter mAdapter; private SurfaceView mSurfaceView; private SpydroidApplication mApplication; private CustomHttpServer mHttpServer; private RtspServer mRtspServer; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mApplication = (SpydroidApplication) getApplication(); setContentView(R.layout.spydroid); if (findViewById(R.id.handset_pager) != null) { // Handset detected ! mAdapter = new SectionsPagerAdapter(getSupportFragmentManager()); mViewPager = (ViewPager) findViewById(R.id.handset_pager); setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); mSurfaceView = (SurfaceView)findViewById(R.id.handset_camera_view); SessionBuilder.getInstance().setSurfaceView(mSurfaceView); SessionBuilder.getInstance().setPreviewOrientation(90); } else { // Tablet detected ! device = TABLET; mAdapter = new SectionsPagerAdapter(getSupportFragmentManager()); mViewPager = (ViewPager) findViewById(R.id.tablet_pager); setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); SessionBuilder.getInstance().setPreviewOrientation(0); } mViewPager.setAdapter(mAdapter); // Remove the ads if this is the donate version of the app. if (mApplication.DONATE_VERSION) { ((LinearLayout)findViewById(R.id.adcontainer)).removeAllViews(); } // Prevents the phone from going to sleep mode PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); mWakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, "net.majorkernelpanic.spydroid.wakelock"); // Starts the service of the HTTP server this.startService(new Intent(this,CustomHttpServer.class)); // Starts the service of the RTSP server this.startService(new Intent(this,CustomRtspServer.class)); } public void onStart() { super.onStart(); // Lock screen mWakeLock.acquire(); // Did the user disabled the notification ? if (mApplication.notificationEnabled) { Intent notificationIntent = new Intent(this, SpydroidActivity.class); PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_CANCEL_CURRENT); NotificationCompat.Builder builder = new NotificationCompat.Builder(this); Notification notification = builder.setContentIntent(pendingIntent) .setWhen(System.currentTimeMillis()) .setTicker(getText(R.string.notification_title)) .setSmallIcon(R.drawable.icon) .setContentTitle(getText(R.string.notification_title)) .setContentText(getText(R.string.notification_content)).build(); notification.flags |= Notification.FLAG_ONGOING_EVENT; ((NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE)).notify(0,notification); } else { removeNotification(); } bindService(new Intent(this,CustomHttpServer.class), mHttpServiceConnection, Context.BIND_AUTO_CREATE); bindService(new Intent(this,CustomRtspServer.class), mRtspServiceConnection, Context.BIND_AUTO_CREATE); } @Override public void onStop() { super.onStop(); // A WakeLock should only be released when isHeld() is true ! if (mWakeLock.isHeld()) mWakeLock.release(); if (mHttpServer != null) mHttpServer.removeCallbackListener(mHttpCallbackListener); unbindService(mHttpServiceConnection); if (mRtspServer != null) mRtspServer.removeCallbackListener(mRtspCallbackListener); unbindService(mRtspServiceConnection); } @Override public void onResume() { super.onResume(); mApplication.applicationForeground = true; } @Override public void onPause() { super.onPause(); mApplication.applicationForeground = false; } @Override public void onDestroy() { Log.d(TAG,"SpydroidActivity destroyed"); super.onDestroy(); } @Override public void onBackPressed() { Intent setIntent = new Intent(Intent.ACTION_MAIN); setIntent.addCategory(Intent.CATEGORY_HOME); setIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(setIntent); } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.menu, menu); MenuItemCompat.setShowAsAction(menu.findItem(R.id.quit), 1); MenuItemCompat.setShowAsAction(menu.findItem(R.id.options), 1); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { Intent intent; switch (item.getItemId()) { case R.id.options: // Starts QualityListActivity where user can change the streaming quality intent = new Intent(this.getBaseContext(),OptionsActivity.class); startActivityForResult(intent, 0); return true; case R.id.quit: quitSpydroid(); return true; default: return super.onOptionsItemSelected(item); } } private void quitSpydroid() { // Removes notification if (mApplication.notificationEnabled) removeNotification(); // Kills HTTP server this.stopService(new Intent(this,CustomHttpServer.class)); // Kills RTSP server this.stopService(new Intent(this,CustomRtspServer.class)); // Returns to home menu finish(); } private ServiceConnection mRtspServiceConnection = new ServiceConnection() { @Override public void onServiceConnected(ComponentName name, IBinder service) { mRtspServer = (CustomRtspServer) ((RtspServer.LocalBinder)service).getService(); mRtspServer.addCallbackListener(mRtspCallbackListener); mRtspServer.start(); } @Override public void onServiceDisconnected(ComponentName name) {} }; private RtspServer.CallbackListener mRtspCallbackListener = new RtspServer.CallbackListener() { @Override public void onError(RtspServer server, Exception e, int error) { // We alert the user that the port is already used by another app. if (error == RtspServer.ERROR_BIND_FAILED) { new AlertDialog.Builder(SpydroidActivity.this) .setTitle(R.string.port_used) .setMessage(getString(R.string.bind_failed, "RTSP")) .setPositiveButton("OK", new DialogInterface.OnClickListener() { public void onClick(final DialogInterface dialog, final int id) { startActivityForResult(new Intent(SpydroidActivity.this, OptionsActivity.class),0); } }) .show(); } } @Override public void onMessage(RtspServer server, int message) { if (message==RtspServer.MESSAGE_STREAMING_STARTED) { if (mAdapter != null && mAdapter.getHandsetFragment() != null) mAdapter.getHandsetFragment().update(); } else if (message==RtspServer.MESSAGE_STREAMING_STOPPED) { if (mAdapter != null && mAdapter.getHandsetFragment() != null) mAdapter.getHandsetFragment().update(); } } }; private ServiceConnection mHttpServiceConnection = new ServiceConnection() { @Override public void onServiceConnected(ComponentName name, IBinder service) { mHttpServer = (CustomHttpServer) ((TinyHttpServer.LocalBinder)service).getService(); mHttpServer.addCallbackListener(mHttpCallbackListener); mHttpServer.start(); } @Override public void onServiceDisconnected(ComponentName name) {} }; private TinyHttpServer.CallbackListener mHttpCallbackListener = new TinyHttpServer.CallbackListener() { @Override public void onError(TinyHttpServer server, Exception e, int error) { // We alert the user that the port is already used by another app. if (error == TinyHttpServer.ERROR_HTTP_BIND_FAILED || error == TinyHttpServer.ERROR_HTTPS_BIND_FAILED) { String str = error==TinyHttpServer.ERROR_HTTP_BIND_FAILED?"HTTP":"HTTPS"; new AlertDialog.Builder(SpydroidActivity.this) .setTitle(R.string.port_used) .setMessage(getString(R.string.bind_failed, str)) .setPositiveButton("OK", new DialogInterface.OnClickListener() { public void onClick(final DialogInterface dialog, final int id) { startActivityForResult(new Intent(SpydroidActivity.this, OptionsActivity.class),0); } }) .show(); } } @Override public void onMessage(TinyHttpServer server, int message) { if (message==CustomHttpServer.MESSAGE_STREAMING_STARTED) { if (mAdapter != null && mAdapter.getHandsetFragment() != null) mAdapter.getHandsetFragment().update(); if (mAdapter != null && mAdapter.getPreviewFragment() != null) mAdapter.getPreviewFragment().update(); } else if (message==CustomHttpServer.MESSAGE_STREAMING_STOPPED) { if (mAdapter != null && mAdapter.getHandsetFragment() != null) mAdapter.getHandsetFragment().update(); if (mAdapter != null && mAdapter.getPreviewFragment() != null) mAdapter.getPreviewFragment().update(); } } }; private void removeNotification() { ((NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE)).cancel(0); } public void log(String s) { Toast.makeText(getApplicationContext(), s, Toast.LENGTH_SHORT).show(); } class SectionsPagerAdapter extends FragmentPagerAdapter { public SectionsPagerAdapter(FragmentManager fm) { super(fm); } @Override public Fragment getItem(int i) { if (device == HANDSET) { switch (i) { case 0: return new HandsetFragment(); case 1: return new PreviewFragment(); case 2: return new AboutFragment(); } } else { switch (i) { case 0: return new TabletFragment(); case 1: return new AboutFragment(); } } return null; } @Override public int getCount() { return device==HANDSET ? 3 : 2; } public HandsetFragment getHandsetFragment() { if (device == HANDSET) { return (HandsetFragment) getSupportFragmentManager().findFragmentByTag("android:switcher:"+R.id.handset_pager+":0"); } else { return (HandsetFragment) getSupportFragmentManager().findFragmentById(R.id.handset); } } public PreviewFragment getPreviewFragment() { if (device == HANDSET) { return (PreviewFragment) getSupportFragmentManager().findFragmentByTag("android:switcher:"+R.id.handset_pager+":1"); } else { return (PreviewFragment) getSupportFragmentManager().findFragmentById(R.id.preview); } } @Override public CharSequence getPageTitle(int position) { if (device == HANDSET) { switch (position) { case 0: return getString(R.string.page0); case 1: return getString(R.string.page1); case 2: return getString(R.string.page2); } } else { switch (position) { case 0: return getString(R.string.page0); case 1: return getString(R.string.page2); } } return null; } }