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基于Android的远程视频监控系统（含源码）

2014-05-07 10:26 309 查看

基本过程是android作为socket客户端将采集到的每一帧图像数据发送出去，PC作为服务器接收并显示每一帧图像实现远程监控。图片如下（后来PC端加了个拍照功能）。。。

（PS。刚学android和java不久很多东西还不懂，高手若是知道哪些地方可以继续优化的话还请多多指点下啊）

系统代码如下：

一、android手机客户端

（1）AndroidManifest.xml文件。添加camera和socket权限，并设置了程序开始执行的activity、

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01	<? xml version = "1.0" encoding = "utf-8" ?>

02	< manifest xmlns:android = "http://schemas.android.com/apk/res/android"

03	package = "org.wanghai.CameraTest"

04	android:versionCode = "1"

05	android:versionName = "1.0" >

07	< uses-sdk android:minSdkVersion = "15" />

09	<!--授予程序使用摄像头的权限-->

10	< uses-permission android:name = "android.permission.CAMERA" />

11	< uses-feature android:name = "android.hardware.camera" />

12	< uses-feature android:name = "android.hardware.camera.autofocus" />

13	< uses-permission android:name = "android.permission.INTERNET" />

14	< uses-permission android:name = "android.permission.KILL_BACKGROUND_PROCESSES" />

15	< uses-permission android:name = "android.permission.RESTART_PACKAGES" />

17	< application

18	android:icon = "@drawable/ic_launcher"

19	android:label = "@string/app_name" >

21	< activity

22	android:name = ".GetIP"

23	android:screenOrientation = "landscape"

24	android:label = "@string/app_name" >

25	< intent-filter >

26	< action android:name = "android.intent.action.MAIN" />

27	< category android:name = "android.intent.category.LAUNCHER" />

28	</ intent-filter >

29	</ activity >

30	< activity

31	android:name = ".CameraTest"

32	android:screenOrientation = "landscape"

33	android:label = "@string/app_name" >

35	</ activity >

37	</ application >

39	</ manifest >

41	（2）main.xml设置surfaceview用于摄像头采集图像的预览

43	<? xml version = "1.0" encoding = "utf-8" ?>

44	< LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android"

45	android:layout_width = "fill_parent"

46	android:layout_height = "fill_parent"

47	android:orientation = "vertical" >

49	< SurfaceView

50	android:id = "@+id/sView"

51	android:layout_width = "fill_parent"

52	android:layout_height = "fill_parent"

53	android:scaleType = "fitCenter" />

55	</ LinearLayout >

57	（3）login.xml登录界面，用于输入服务器IP

59	<? xml version = "1.0" encoding = "utf-8" ?>

60	< TableLayout xmlns:android = "http://schemas.android.com/apk/res/android"

61	android:id = "@+id/loginForm"

62	android:orientation = "vertical"

63	android:layout_width = "fill_parent"

64	android:layout_height = "fill_parent"

67	< TableRow >

68	< TextView

69	android:layout_width = "fill_parent"

70	android:layout_height = "wrap_content"

71	android:text = "IP:"

72	android:textSize = "10pt"

/>

74	<!--输入用户名的文本框-->

75	< EditText

76	android:id = "@+id/ipedittext"

77	android:layout_width = "fill_parent"

78	android:layout_height = "wrap_content"

79	android:digits = "0123456789."

80	android:hint = "请填写服务器IP"

81	android:selectAllOnFocus = "true"

/>

83	</ TableRow >

85	</ TableLayout >

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001	（ 4 ）GetIP.java获得服务器IP后，通过Intent启动CameraTest的activity，ip信息通过Bundle传递

003	public class GetIP extends Activity{

004	Stringipname= null ;

@Override

006	public void onCreate(BundlesavedInstanceState){

007	super .onCreate(savedInstanceState);

//设置全屏

009	requestWindowFeature(Window.FEATURE_NO_TITLE);

010	getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);

011	setContentView(R.layout.main);

013	final Builderbuilder= new AlertDialog.Builder( this ); //定义一个AlertDialog.Builder对象

014	builder.setTitle( "登录服务器对话框" ); //设置对话框的标题

016	//装载/res/layout/login.xml界面布局

017	TableLayoutloginForm=(TableLayout)getLayoutInflater().inflate(R.layout.login, null );

018	final EditTextiptext=(EditText)loginForm.findViewById(R.id.ipedittext);

019	builder.setView(loginForm); //设置对话框显示的View对象

020	//为对话框设置一个“登录”按钮

021	builder.setPositiveButton( "登录"

022	//为按钮设置监听器

023	, new OnClickListener(){

@Override

025	public void onClick(DialogInterfacedialog, int which){

026	//此处可执行登录处理

027	ipname=iptext.getText().toString().trim();

028	Bundledata= new Bundle();

029	data.putString( "ipname" ,ipname);

030	Intentintent= new Intent(GetIP. this ,CameraTest. class );

031	intent.putExtras(data);

032	startActivity(intent);

});

035	//为对话框设置一个“取消”按钮

036	builder.setNegativeButton( "取消"

037	, new OnClickListener()

@Override

040	public void onClick(DialogInterfacedialog, int which)

042	//取消登录，不做任何事情。

043	System.exit( 1 );

});

046	//创建、并显示对话框

047	builder.create().show();

（

）CameraTest.java程序主体。设置PreviewCallback后，每当一帧图像数据采集完成后将调用PreviewCallback的onPreviewFrame函数。在这里我们将YUV格式数据转为jpg，再启用线程将数据通过socket发送出去。

053	public class CameraTest extends Activity{

054	SurfaceViewsView;

055	SurfaceHoldersurfaceHolder;

056	int screenWidth,screenHeight;

057	Cameracamera; //定义系统所用的照相机

058	boolean isPreview= false ; //是否在浏览中

059	private Stringipname;

061	@SuppressWarnings ( "deprecation" )

@Override

063	public void onCreate(BundlesavedInstanceState){

064	super .onCreate(savedInstanceState);

//设置全屏

066	requestWindowFeature(Window.FEATURE_NO_TITLE);

067	getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);

068	setContentView(R.layout.main);

//获取IP地址

071	Intentintent=getIntent();

072	Bundledata=intent.getExtras();

073	ipname=data.getString( "ipname" );

075	screenWidth= 640 ;

076	screenHeight= 480 ;

077	sView=(SurfaceView)findViewById(R.id.sView); //获取界面中SurfaceView组件

078	surfaceHolder=sView.getHolder(); //获得SurfaceView的SurfaceHolder

080	//为surfaceHolder添加一个回调监听器

081	surfaceHolder.addCallback( new Callback(){

@Override

083	public void surfaceChanged(SurfaceHolderholder, int format, int width, int height){

@Override

086	public void surfaceCreated(SurfaceHolderholder){

087	initCamera(); //打开摄像头

@Override

090	public void surfaceDestroyed(SurfaceHolderholder){

091	//如果camera不为null,释放摄像头

092	if (camera!= null ){

093	if (isPreview)

094	camera.stopPreview();

095	camera.release();

096	camera= null ;

098	System.exit( 0 );

});

101	//设置该SurfaceView自己不维护缓冲

102	surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

106	private void initCamera(){

107	if (!isPreview){

108	camera=Camera.open();

110	if (camera!= null &&!isPreview){

try

112	Camera.Parametersparameters=camera.getParameters();

113	parameters.setPreviewSize(screenWidth,screenHeight); //设置预览照片的大小

114	parameters.setPreviewFpsRange( 20 , 30 ); //每秒显示20~30帧

115	parameters.setPictureFormat(ImageFormat.NV21); //设置图片格式

116	parameters.setPictureSize(screenWidth,screenHeight); //设置照片的大小

117	//camera.setParameters(parameters);//android2.3.3以后不需要此行代码

118	camera.setPreviewDisplay(surfaceHolder); //通过SurfaceView显示取景画面

119	camera.setPreviewCallback( new StreamIt(ipname)); //设置回调的类

120	camera.startPreview(); //开始预览

121	camera.autoFocus( null ); //自动对焦

122	} catch (Exceptione){

123	e.printStackTrace();

125	isPreview= true ;

131	class StreamIt implements Camera.PreviewCallback{

132	private Stringipname;

133	public StreamIt(Stringipname){

134	this .ipname=ipname;

@Override

138	public void onPreviewFrame( byte []data,Cameracamera){

139	Sizesize=camera.getParameters().getPreviewSize();

try

141	//调用image.compressToJpeg（）将YUV格式图像数据data转为jpg格式

142	YuvImageimage= new YuvImage(data,ImageFormat.NV21,size.width,size.height, null );

143	if (image!= null ){

144	ByteArrayOutputStreamoutstream= new ByteArrayOutputStream();

145	image.compressToJpeg( new Rect( 0 , 0 ,size.width,size.height), 80 ,outstream);

146	outstream.flush();

147	//启用线程将图像数据发送出去

148	Threadth= new MyThread(outstream,ipname);

149	th.start();

151	} catch (Exceptionex){

152	Log.e( "Sys" , "Error:" +ex.getMessage());

157	class MyThread extends Thread{

158	private byte byteBuffer[]= new byte [ 1024 ];

159	private OutputStreamoutsocket;

160	private ByteArrayOutputStreammyoutputstream;

161	private Stringipname;

163	public MyThread(ByteArrayOutputStreammyoutputstream,Stringipname){

164	this .myoutputstream=myoutputstream;

165	this .ipname=ipname;

try

167	myoutputstream.close();

168	} catch (IOExceptione){

169	e.printStackTrace();

173	public void run(){

try

175	//将图像数据通过Socket发送出去

176	SockettempSocket= new Socket(ipname, 6000 );

177	outsocket=tempSocket.getOutputStream();

178	ByteArrayInputStreaminputstream= new ByteArrayInputStream(myoutputstream.toByteArray());

179	int amount;

180	while ((amount=inputstream.read(byteBuffer))!=- 1 ){

181	outsocket.write(byteBuffer, 0 ,amount);

183	myoutputstream.flush();

184	myoutputstream.close();

185	tempSocket.close();

186	} catch (IOExceptione){

187	e.printStackTrace();

二、PC服务器端

194	ImageServer.java用于显示图像，并且可以拍照

196	public class ImageServer{

197	public static ServerSocketss= null ;

199	public static void main(Stringargs[]) throws IOException{

200	ss= new ServerSocket( 6000 );

202	final ImageFrameframe= new ImageFrame(ss);

203	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

204	frame.setVisible( true );

206	while ( true ){

207	frame.panel.getimage();

208	frame.repaint();

/**

215	Aframewithanimagepanel

*/

217	@SuppressWarnings ( "serial" )

218	class ImageFrame extends JFrame{

219	public ImagePanelpanel;

220	public JButtonjb;

222	public ImageFrame(ServerSocketss){

223	//getscreendimensions

224	Toolkitkit=Toolkit.getDefaultToolkit();

225	DimensionscreenSize=kit.getScreenSize();

226	int screenHeight=screenSize.height;

227	int screenWidth=screenSize.width;

229	//centerframeinscreen

230	setTitle( "ImageTest" );

231	setLocation((screenWidth-DEFAULT_WIDTH)/ 2 ,(screenHeight-DEFAULT_HEIGHT)/ 2 );

232	setSize(DEFAULT_WIDTH,DEFAULT_HEIGHT);

234	//addpaneltoframe

235	this .getContentPane().setLayout( null );

236	panel= new ImagePanel(ss);

237	panel.setSize( 640 , 480 );

238	panel.setLocation( 0 , 0 );

239	add(panel);

240	jb= new JButton( "拍照" );

241	jb.setBounds( 0 , 480 , 640 , 50 );

add(jb);

243	saveimagesaveaction= new saveimage(ss);

244	jb.addActionListener(saveaction);

247	public static final int DEFAULT_WIDTH= 640 ;

248	public static final int DEFAULT_HEIGHT= 560 ;

/**

252	Apanelthatdisplaysatiledimage

*/

254	@SuppressWarnings ( "serial" )

255	class ImagePanel extends JPanel{

256	private ServerSocketss;

257	private Imageimage;

258	private InputStreamins;

260	public ImagePanel(ServerSocketss){

261	this .ss=ss;

264	public void getimage() throws IOException{

265	Sockets= this .ss.accept();

266	System.out.println( "连接成功!" );

267	this .ins=s.getInputStream();

268	this .image=ImageIO.read(ins);

269	this .ins.close();

272	public void paintComponent(Graphicsg){

273	super .paintComponent(g);

274	if (image== null ) return ;

275	g.drawImage(image, 0 , 0 , null );

280	class saveimage implements ActionListener{

281	RandomAccessFileinFile= null ;

282	byte byteBuffer[]= new byte [ 1024 ];

283	InputStreamins;

284	private ServerSocketss;

286	public saveimage(ServerSocketss){

287	this .ss=ss;

290	public void actionPerformed(ActionEventevent){

try

292	Sockets=ss.accept();

293	ins=s.getInputStream();

295	//文件选择器以当前的目录打开

296	JFileChooserjfc= new JFileChooser( "." );

297	jfc.showSaveDialog( new javax.swing.JFrame());

298	//获取当前的选择文件引用

299	FilesavedFile=jfc.getSelectedFile();

//已经选择了文件

302	if (savedFile!= null ){

303	//读取文件的数据，可以每次以快的方式读取数据

try

305	inFile= new RandomAccessFile(savedFile, "rw" );

306	} catch (FileNotFoundExceptione){

307	e.printStackTrace();

311	int amount;

312	while ((amount=ins.read(byteBuffer))!=- 1 ){

313	inFile.write(byteBuffer, 0 ,amount);

315	inFile.close();

316	ins.close();

317	s.close();

318	javax.swing.JOptionPane.showMessageDialog( new javax.swing.JFrame(),

319	"已接保存成功" , "提示!" ,javax.swing.JOptionPane.PLAIN_MESSAGE);

320	} catch (IOExceptione){

322	e.printStackTrace();

开放源码如下（android我使用的是4.03的SDK，其它版本请自行更改。2.3.3版本以下的请注意initCamera()里被注释掉的哪一行）

只能在android4.04系统的手机上运行成功哦。

下面是测试成功时的启动画面：

android_video.rar

转自：http://www.cnblogs.com/feifei1010/archive/2012/08/31/2664939.html

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