【转】Android手机视频监控JNI问题

各位大侠，小弟现在做一个Android手机视频监控软件，就是通过手机查看摄像头的视频，就像飞天眼。我们把每个用 户的信息保存在一个服务器上，使用XML格式。用户登录的时候需要用户名和密码，用户查看某个摄像头的时候我们要传数据过去（IP和端口还有摄像头用户名 和密码）。我们使用JNI解码H264视频数据。现在遇到一个问题就是在Java层Login(String name,String password)直接传给JNI的C程序会出错。不知道各位大侠有什么好办法帮忙解决吗？QQ467887719 小弟在此先谢了！[code=Java][/code]package com.handlerun.view; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.nio.ByteBuffer; import android.app.Activity; import android.content.Context; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Matrix; import android.graphics.Paint; import android.graphics.Bitmap.Config; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.view.View; public class H264Android extends Activity { VView vv;   @Override   public void onCreate(Bundle savedInstanceState) {   super.onCreate(savedInstanceState);   vv = new VView(this);   setContentView(vv);   }       // Menu item Ids   public static final int PLAY_ID = Menu.FIRST;     public static final int EXIT_ID = Menu.FIRST + 1;    @Override   public boolean onCreateOptionsMenu(Menu menu) {   super.onCreateOptionsMenu(menu);       menu.add(0, PLAY_ID, 0, R.string.play);     menu.add(0, EXIT_ID, 1, R.string.exit);   return true;   }   @Override   public boolean onOptionsItemSelected(MenuItem item) {   switch (item.getItemId()) {   case PLAY_ID: { //String file = "/sdcard/butterfly.264"; String file = "/sdcard/2.264"; vv.PlayVideo(file); //播放视频 return true; } case EXIT_ID: { finish(); //退出 return true; }   }   return super.onOptionsItemSelected(item);   } } // 实现Runable接口 class VView extends View implements Runnable{       Bitmap mBitQQ = null;     Paint mPaint = null;     Bitmap mSCBitmap = null;     Matrix matrix = new Matrix();    byte [] mPixel = new byte[240*576*2];     ByteBuffer buffer = ByteBuffer.wrap( mPixel ); Bitmap VideoBit = Bitmap.createBitmap(352, 288, Config.RGB_565);   int mTrans=0x0F0F0F0F; String PathFileName;    public native int InitDecoder();   public native int UninitDecoder();    public native int DecoderNal(byte[] in, int insize, byte[] out);   public native int Connectiondvs(String ip,int port);   public native int Login(String username,String password);   public native int LiveVideo(int videoCH,byte[] out);   public native int StopLive();       static {   System.loadLibrary("H264Android");   }       //构造函数   public VView(Context context) {   super(context);   setFocusable(true);       int i = mPixel.length;     for(i=0; i<mPixel.length; i++)   {   mPixel[i]=(byte)0x00;   }   }           //播放视频函数   public void PlayVideo(String file)   {   PathFileName = file;     new Thread(this).start();   }       @Override    protected void onDraw(Canvas canvas) {   super.onDraw(canvas);   // Bitmap tmpBit = Bitmap.createBitmap(mPixel, 320, 480, Bitmap.Config.RGB_565);//.ARGB_8888);   VideoBit.copyPixelsFromBuffer(buffer);//makeBuffer(data565, N));   matrix.postScale(1, 1);    matrix.setRotate(90,120,130);    canvas.drawBitmap(VideoBit, matrix, null);     // canvas.drawBitmap(VideoBit, 0, 0, null);    }       int MergeBuffer(byte[] NalBuf, int NalBufUsed, byte[] SockBuf, int SockBufUsed, int SockRemain)   {   int i=0;   byte Temp;   for(i=0; i<SockRemain; i++)   {   Temp =SockBuf[i+SockBufUsed];   NalBuf[i+NalBufUsed]=Temp;   mTrans <<= 8;   mTrans |= Temp;   if(mTrans == 1) // 找到一个开始字    {   i++;   break;   }   }     return i;   }   //重写run方法   public void run()     {     InputStream is = null;   FileInputStream fileIS=null;     int iTemp=0;   int nalLen;     boolean bFirst=true;   boolean bFindPPS=true;     int bytesRead=0;   int NalBufUsed=0;   int SockBufUsed=0;       byte [] NalBuf = new byte[40980]; // 40k   byte [] SockBuf = new byte[2048];     InitDecoder();       try   {     int result = Connectiondvs("IP（直接传IP值）",端口);   System.out.println(" connection stat " + result );   if(result==1)   {   result = Login("admin","654321");   if(result==1)   {   System.out.println(" loign succ .........." );   return ;   }   else   {   System.out.println(" loign fail .........." );   return ;   }   }   else   {   System.out.println(" connection fail .........." );   return ;   }   // fileIS = new FileInputStream(PathFileName);   }   catch(Exception e) {}      while (!Thread.currentThread().isInterrupted())     {     try     {     bytesRead = fileIS.read(SockBuf, 0, 2048);   if(bytesRead<=0)   break; //   // iTemp=DecoderNal(SockBuf, 2048, mPixel);   // // if(iTemp>0) // { // postInvalidate(); //使用postInvalidate可以直接在线程中更新界面 // postInvalidate(); // }   }   catch (IOException e) {}               SockBufUsed =0;       while(bytesRead-SockBufUsed>0)   {   nalLen = MergeBuffer(NalBuf, NalBufUsed, SockBuf, SockBufUsed, bytesRead-SockBufUsed);     NalBufUsed += nalLen;   SockBufUsed += nalLen;     while(mTrans == 1)   {   mTrans = 0xFFFFFFFF;   if(bFirst==true) // the first start flag   {   bFirst = false;   }   else // a complete NAL data, include 0x00000001 trail.   {   if(bFindPPS==true)/// true   {   if( (NalBuf[4]&0x1F) == 7 )   {   bFindPPS = false;   }   else   {   NalBuf[0]=0;   NalBuf[1]=0;   NalBuf[2]=0;   NalBuf[3]=1;     NalBufUsed=4;     break;   }   }   // decode nal   System.out.println("DecoderNal .... NalBufUsed" + (NalBufUsed-4));   iTemp=DecoderNal(NalBuf, NalBufUsed-4, mPixel);     System.out.println("DecoderNal .... iTemp" + iTemp);   if(iTemp>0)   {   postInvalidate(); //使用postInvalidate可以直接在线程中更新界面 postInvalidate();   }   }   NalBuf[0]=0;   NalBuf[1]=0;   NalBuf[2]=0;   NalBuf[3]=1;     NalBufUsed=4;   }   }    }    try{ if(fileIS!=null) fileIS.close(); if(is!=null) is.close();   } catch (IOException e) { e.printStackTrace();   }   UninitDecoder();   }   }