android视频采集

完成了视频录制，点start开始，stop结束，通过socket发送个PC端。问题是，PC录制的视频并不能播放，而在手机里存储的MP4，是可以播放的。花些日子改进当中。

 

MakeVideoActivity.java

 

 

 

package test.video;
import android.graphics.PixelFormat;
import android.hardware.*;
import java.io.IOException;

import android.app.Activity;
import android.media.MediaRecorder;
import android.media.MediaScannerConnection;
import android.media.MediaScannerConnection.MediaScannerConnectionClient;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.TextView;
import android.hardware.*;

public class MakeVideoActivity extends Activity implements SurfaceHolder.Callback {
    /** Called when the activity is first created. */
 
    private MediaRecorder mediaRecorder = null;
   
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setFormat(PixelFormat.TRANSLUCENT); 
        requestWindowFeature(Window.FEATURE_NO_TITLE); 
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 
        WindowManager.LayoutParams.FLAG_FULLSCREEN); 

        setContentView(R.layout.main);
       
        SurfaceView surface = (SurfaceView)findViewById(R.id.mysurface);
        final Button btnStart =(Button)findViewById(R.id.btnstart);
        final Button btnStop = (Button)findViewById(R.id.btnstop);
        btnStop.setEnabled(false);
        btnStart.setOnClickListener(new Button.OnClickListener()
        {

   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    mediaRecorder.start();
    btnStart.setEnabled(false);
    btnStop.setEnabled(true);
   }
         
        });
      
        btnStop.setOnClickListener(new Button.OnClickListener()
        {

   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    mediaRecorder.stop();
    
    btnStart.setEnabled(true);
    btnStop.setEnabled(false);
    
    MediaScannerConnectionClient mediaScannerClient = new MediaScannerConnectionClient(){
     private MediaScannerConnection msc = null;
     
     {
     msc = new MediaScannerConnection(getApplicationContext(),this);
     msc.connect();
     }
     public void onMediaScannerConnected() {
      // TODO Auto-generated method stub
      msc.scanFile("/sdcard/myvideo.mp4", null);
      
     }

     @Override
     public void onScanCompleted(String path, Uri uri) {
      // TODO Auto-generated method stub
      msc.disconnect();
     }
     
    };
    sendVideo thread = new sendVideo();
    thread.start();
    
   }
         
        });
         
  
        SurfaceHolder holder = surface.getHolder();
        holder.addCallback(this);
        holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        holder.setFixedSize(400, 300);
       
       
      
       
  
  
       
    }

 @Override
 public void surfaceChanged(SurfaceHolder holder, int format, int width,
   int height) {
  // TODO Auto-generated method stub
  
  
 }

 @Override
 public void surfaceCreated(SurfaceHolder holder) {
  // TODO Auto-generated method stub
  if(mediaRecorder == null)
  {
   
   mediaRecorder = new MediaRecorder();
   mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); //录音源为麦克风
   mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);//视频源
   
   mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);//输出格式为3gp
   //mediaRecorder.setVideoSize(400,300);//视频尺寸
   mediaRecorder.setVideoFrameRate(15);//视频帧频率
   mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);//视频编码
   mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);//音频编码
         mediaRecorder.setOutputFile("/sdcard/myvideo.mp4");
         mediaRecorder.setPreviewDisplay(holder.getSurface());
         try {
    mediaRecorder.prepare();
    //mediaRecorder.start();
   } catch (IllegalStateException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   } catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }
  
  }
 }
 
 @Override
 public void surfaceDestroyed(SurfaceHolder holder) {
  // TODO Auto-generated method stub
  
  mediaRecorder.release();
 }
 
}

  sendVIdeo.java

package test.video;

import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;
import java.net.UnknownHostException;

import android.util.Log;

public class sendVideo extends Thread {
 private DataOutputStream out;
 @Override
 public void run() {
  // TODO Auto-generated method stub
  
  try {
   Socket socket = new Socket("192.168.1.100",2031);
   out =  new DataOutputStream(socket.getOutputStream());
  } catch (UnknownHostException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
  File file = new File("/sdcard/myvideo.mp4");
  try {
   FileInputStream fin= new FileInputStream(file);
   
   byte[] buff= new byte[(int) file.length()];
   Log.e("care", String.valueOf(buff.length));
   out.writeLong(file.length());
   Log.e("care", String.valueOf(file.length()));
   out.write(buff);
   out.flush();
   out.close();
   Log.e("care","send over");
   } catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }
  }
 
  
  
 
 

}

 main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/main"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        >
<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
   
    >     
        <SurfaceView
        android:id="@+id/mysurface"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
       
        />
        </LinearLayout>
        <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
            android:id="@+id/bottom_panel"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:layout_alignParentBottom="true"
            >
            <Button
                android:id="@+id/btnstart"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:layout_gravity="center_vertical"
                android:text="start"
                />
            <Button
                android:id="@+id/btnstop"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:layout_gravity="center_vertical"
                android:text="stop"
                />
        </LinearLayout>

 
    </RelativeLayout>

 

AndroidMainifest.xml
AndroidManifest.xmlAndroidManifest.xmlAndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="test.video"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="8" />

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".MakeVideoActivity"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
 
    </application>
    <uses-permission android:name="android.permission."/>
    <uses-permission android:name="android.permission.CAMERA" />
 <uses-permission android:name="android.permission.RECORD_AUDIO">
 </uses-permission>
 <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"></uses-permission>
 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
 <uses-permission android:name="android.permission.INTERNET"/>
</manifest>

 

JAVA端

 

import java.io.IOException;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;

public class ReceiveVideo {

 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  try {
   ServerSocket server = new ServerSocket(2031);
   System.out.println(InetAddress.getLocalHost().getHostAddress()+ "server have start work");
   while(true)
   {
   Socket client = server.accept();
   System.out.println(client.getInetAddress().toString()+"connected");
   ThreadReceiveVideo thread = new ThreadReceiveVideo(client);
   thread.start();
   }
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }

 }

}

 

import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.Socket;

import org.omg.CORBA.portable.InputStream;

public class ThreadReceiveVideo extends Thread {
 private Socket socket ;
 private File file;
 private FileOutputStream fin;
 public ThreadReceiveVideo(Socket socket) throws FileNotFoundException
 {
  this.socket = socket;
  file = new File("D://test.mp4");
  fin = new FileOutputStream(file);
  
 }
 @Override
 public void run() {
  // TODO Auto-generated method stub
  try {
   DataInputStream in =  new DataInputStream(socket.getInputStream());
   
   int bytesToRead= (int) in.readLong();
   System.out.println(String.valueOf("data length:"+bytesToRead));
   byte[] buff = new byte[bytesToRead];
   int bytesRead =0;
   
   while(bytesRead<bytesToRead)    
   {
    int result=in.read(buff, bytesRead, bytesToRead-bytesRead);
    if(result == -1) break;
    bytesRead +=result;
    
    
   }
   
   in.close();
   fin.write(buff);
   fin.close();
   System.out.println("receive over");
   
   
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } 
  }
 

}