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POhow to solve illegal state exception in video recorder using media recorder in android3.1
 

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    <p>I want to record video using custom video recorder to save mp4 video using media recorder in android.</p> <p>can anybody provide code? i done the code (shown below) but it show illegal exception can anybody tell what is problem ?</p> <pre><code>import java.io.IOException; import android.app.Activity; import android.content.pm.ActivityInfo; import android.media.CamcorderProfile; import android.media.MediaRecorder; import android.os.Bundle; import android.os.Environment; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.view.Window; import android.view.WindowManager; import android.view.View.OnClickListener; public class CustomCameraRecordActivity extends Activity implements OnClickListener, SurfaceHolder.Callback { MediaRecorder recorder; SurfaceHolder holder; boolean recording = false; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); //setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); setContentView(R.layout.main); recorder = new MediaRecorder(); initRecorder(); SurfaceView cameraView = (SurfaceView) findViewById(R.id.CameraView); holder = cameraView.getHolder(); holder.addCallback(this); holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); cameraView.setClickable(true); cameraView.setOnClickListener(this); } private void initRecorder() { recorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT); recorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT); recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4); CamcorderProfile cpHigh = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH); recorder.setProfile(cpHigh); recorder.setOutputFile(Environment.getExternalStorageDirectory()+"VideoGcm"+System.currentTimeMillis()+".mp4"); recorder.setMaxDuration(50000); // 50 seconds recorder.setMaxFileSize(5000000); // Approximately 5 megabytes } private void prepareRecorder() { recorder.setPreviewDisplay(holder.getSurface()); try { recorder.prepare(); } catch (IllegalStateException e) { e.printStackTrace(); finish(); } catch (IOException e) { e.printStackTrace(); finish(); } } public void onClick(View v) { if (recording) { recorder.stop(); recording = false; // Let's initRecorder so we can record again initRecorder(); prepareRecorder(); } else { recording = true; recorder.start(); } } public void surfaceCreated(SurfaceHolder holder) { prepareRecorder(); } public void surfaceChanged(SurfaceHolder holder, int format, int width,int height) { } public void surfaceDestroyed(SurfaceHolder holder) { if (recording) { recorder.stop(); recording = false; } recorder.release(); finish(); } } </code></pre> <p>Thanks</p> <pre><code>10-20 19:19:37.540: ERROR/AndroidRuntime(2718): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.hcl.camera/com.hcl.camera.CustomCameraRecordActivity}: java.lang.IllegalStateException 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1748) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1764) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at android.app.ActivityThread.access$1500(ActivityThread.java:122) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1002) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at android.os.Handler.dispatchMessage(Handler.java:99) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at android.os.Looper.loop(Looper.java:132) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at android.app.ActivityThread.main(ActivityThread.java:4025) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at java.lang.reflect.Method.invokeNative(Native Method) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at java.lang.reflect.Method.invoke(Method.java:491) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at dalvik.system.NativeStart.main(Native Method) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): Caused by: java.lang.IllegalStateException 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at android.media.MediaRecorder.setOutputFormat(Native Method) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at android.media.MediaRecorder.setProfile(MediaRecorder.java:295) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at com.hcl.camera.CustomCameraRecordActivity.initRecorder(CustomCameraRecordActivity.java:45) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at com.hcl.camera.CustomCameraRecordActivity.onCreate(CustomCameraRecordActivity.java:32) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1048) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1712) 10-20 19:19:37.540: ERROR/AndroidRuntime(2718): ... 11 more 10-20 19:20:40.720: ERROR/MediaRecorder(2759): start called in an invalid state: 4 10-20 19:20:40.730: ERROR/AndroidRuntime(2759): FATAL EXCEPTION: main </code></pre>
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