实例介绍
【实例简介】
【实例截图】
【核心代码】
package teaonly.projects.droidipcam;
import teaonly.projects.droidipcam.R;
import java.io.*;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.TextView;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;
public class MainActivity extends Activity {
private static final int MENU_EXIT = 0xCC882201;
StreamingLoop cameraLoop;
StreamingLoop httpLoop;
NativeAgent nativeAgt;
CameraView myCamView;
StreamingServer strServer;
TextView myMessage;
Button btnStart;
RadioGroup resRadios;
boolean inServer = false;
boolean inStreaming = false;
int targetWid = 320;
int targetHei = 240;
final String checkingFile = "/sdcard/ipcam/myvideo.mp4";
final String resourceDirectory = "/sdcard/ipcam";
// memory object for encoder
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
Window win = getWindow();
win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
win.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.main);
}
@Override
public boolean onCreateOptionsMenu(Menu m){
m.add(0, MENU_EXIT, 0, "Exit");
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem i){
switch(i.getItemId()){
case MENU_EXIT:
finish();
System.exit(0);
return true;
default:
return false;
}
}
@Override
public void onDestroy(){
super.onDestroy();
}
@Override
public void onStart(){
super.onStart();
setup();
}
@Override
public void onResume(){
super.onResume();
}
@Override
public void onPause(){
super.onPause();
finish();
System.exit(0);
}
private void clearResource() {
String[] str ={"rm", "-r", resourceDirectory};
try {
Process ps = Runtime.getRuntime().exec(str);
try {
ps.waitFor();
} catch (InterruptedException e) {
e.printStackTrace();
}
} catch (IOException e) {
e.printStackTrace();
}
}
private void buildResource() {
String[] str ={"mkdir", resourceDirectory};
try {
Process ps = Runtime.getRuntime().exec(str);
try {
ps.waitFor();
} catch (InterruptedException e) {
e.printStackTrace();
}
copyResourceFile(R.raw.index, resourceDirectory "/index.html" );
copyResourceFile(R.raw.style, resourceDirectory "/style.css" );
copyResourceFile(R.raw.player, resourceDirectory "/player.js" );
copyResourceFile(R.raw.player_object, resourceDirectory "/player_object.swf" );
copyResourceFile(R.raw.player_controler, resourceDirectory "/player_controler.swf" );
}
catch (IOException e) {
e.printStackTrace();
}
}
private void setup() {
clearResource();
buildResource();
NativeAgent.LoadLibraries();
nativeAgt = new NativeAgent();
cameraLoop = new StreamingLoop("teaonly.projects");
httpLoop = new StreamingLoop("teaonly.http");
myCamView = (CameraView)findViewById(R.id.surface_overlay);
SurfaceView sv = (SurfaceView)findViewById(R.id.surface_camera);
myCamView.SetupCamera(sv);
myMessage = (TextView)findViewById(R.id.label_msg);
btnStart = (Button)findViewById(R.id.btn_start);
btnStart.setOnClickListener(startAction);
btnStart.setEnabled(true);
/*
Button btnTest = (Button)findViewById(R.id.btn_test);
btnTest.setOnClickListener(testAction);
btnTest.setVisibility(View.INVISIBLE);
*/
RadioButton rb = (RadioButton)findViewById(R.id.res_low);
rb.setOnClickListener(low_res_listener);
rb = (RadioButton)findViewById(R.id.res_medium);
rb.setOnClickListener(medium_res_listener);
rb = (RadioButton)findViewById(R.id.res_high);
rb.setOnClickListener(high_res_listener);
resRadios = (RadioGroup)findViewById(R.id.resolution);
View v = (View)findViewById(R.id.layout_setup);
v.setVisibility(View.VISIBLE);
}
private void startServer() {
inServer = true;
btnStart.setText( getString(R.string.action_stop) );
btnStart.setEnabled(true);
NetInfoAdapter.Update(this);
myMessage.setText( getString(R.string.msg_prepare_ok) " http://" NetInfoAdapter.getInfo("IP") ":8080" );
try {
strServer = new StreamingServer(8080, resourceDirectory);
strServer.setOnRequestListen(streamingRequest);
} catch( IOException e ) {
e.printStackTrace();
showToast(this, "Can't start http server..");
}
}
private void stopServer() {
inServer = false;
btnStart.setText( getString(R.string.action_start) );
btnStart.setEnabled(true);
myMessage.setText( getString(R.string.msg_idle));
if ( strServer != null) {
strServer.stop();
strServer = null;
}
}
private boolean startStreaming() {
if ( inStreaming == true)
return false;
cameraLoop.InitLoop();
httpLoop.InitLoop();
nativeAgt.NativeStartStreamingMedia(cameraLoop.getReceiverFileDescriptor() , httpLoop.getSenderFileDescriptor());
myCamView.PrepareMedia(targetWid, targetHei);
boolean ret = myCamView.StartStreaming(cameraLoop.getSenderFileDescriptor());
if ( ret == false) {
return false;
}
new Handler(Looper.getMainLooper()).post(new Runnable() {
public void run() {
showToast(MainActivity.this, getString(R.string.msg_streaming));
btnStart.setEnabled(false);
}
});
inStreaming = true;
return true;
}
private void stopStreaming() {
if ( inStreaming == false)
return;
inStreaming = false;
myCamView.StopMedia();
httpLoop.ReleaseLoop();
cameraLoop.ReleaseLoop();
nativeAgt.NativeStopStreamingMedia();
new Handler(Looper.getMainLooper()).post(new Runnable() {
public void run() {
btnStart.setEnabled(true);
}
});
}
private void doAction() {
if ( inServer == false) {
myCamView.PrepareMedia(targetWid, targetHei);
boolean ret = myCamView.StartRecording(checkingFile);
if ( ret ) {
btnStart.setEnabled(false);
resRadios.setEnabled(false);
myMessage.setText( getString(R.string.msg_prepare_waiting));
new Handler().postDelayed(new Runnable() {
public void run() {
myCamView.StopMedia();
if ( NativeAgent.NativeCheckMedia(targetWid, targetHei, checkingFile) ) {
startServer();
} else {
btnStart.setEnabled(true);
resRadios.setEnabled(false);
showToast(MainActivity.this, getString(R.string.msg_prepare_error2));
}
}
}, 2000); // 2 seconds to release
} else {
showToast(this, getString(R.string.msg_prepare_error1));
}
} else {
stopServer();
}
}
private void copyResourceFile(int rid, String targetFile) throws IOException {
InputStream fin = ((Context)this).getResources().openRawResource(rid);
FileOutputStream fos = new FileOutputStream(targetFile);
int length;
byte[] buffer = new byte[1024*32];
while( (length = fin.read(buffer)) != -1){
fos.write(buffer,0,length);
}
fin.close();
fos.close();
}
private void showToast(Context context, String message) {
// create the view
LayoutInflater vi = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = vi.inflate(R.layout.message_toast, null);
// set the text in the view
TextView tv = (TextView)view.findViewById(R.id.message);
tv.setText(message);
// show the toast
Toast toast = new Toast(context);
toast.setView(view);
toast.setDuration(Toast.LENGTH_SHORT);
toast.show();
}
StreamingServer.OnRequestListen streamingRequest = new StreamingServer.OnRequestListen() {
public InputStream onRequest() {
Log.d("TEAONLY", "Request live streaming...");
if ( startStreaming() == false)
return null;
try {
InputStream ins = httpLoop.getInputStream();
return ins;
} catch (IOException e) {
e.printStackTrace();
Log.d("TEAONLY", "call httpLoop.getInputStream() error");
stopStreaming();
}
Log.d("TEAONLY", "Return a null response to request");
return null;
}
public void requestDone() {
Log.d("TEAONLY", "Request live streaming is Done!");
stopStreaming();
}
};
private OnClickListener startAction = new OnClickListener() {
public void onClick(View v) {
doAction();
}
};
private OnClickListener testAction = new OnClickListener() {
public void onClick(View v) {
// do some debug testing here.
}
};
private OnClickListener low_res_listener = new OnClickListener() {
public void onClick(View v) {
targetWid = 320;
targetHei = 240;
}
};
private OnClickListener medium_res_listener = new OnClickListener() {
public void onClick(View v) {
targetWid = 640;
targetHei = 480;
}
};
private OnClickListener high_res_listener = new OnClickListener() {
public void onClick(View v) {
targetWid = 1280;
targetHei = 720;
}
};
}
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