title: Why show error IllegalStateException when setting MediaRecorder?
body: <p>My code setting  MediaRecorder, it show error at row set Quality</p>
  
  <pre><code>mMediaRecorder = new MediaRecorder();
  
     // Step 1: Unlock and set camera to MediaRecorder
     mCamera.stopPreview();
     mCamera.unlock();
    mMediaRecorder.setCamera(mCamera);
  
    mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
      mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
      mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
      mMediaRecorder.setProfile(CamcorderProfile .get(CamcorderProfile.QUALITY_HIGH));
      mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
      mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP);
  
      // Step 4: Set output file
      mMediaRecorder.setOutputFile(getOutputMediaFile(MEDIA_TYPE_VIDEO).toString());
  
      // Step 5: Set the preview output
      mMediaRecorder.setPreviewDisplay(mPreview.getHolder().getSurface());
  
      // Step 6: Prepare configured MediaRecorder
     try {
      mMediaRecorder.prepare();
          Log.d("DEBUG", "IllegalStateException preparing MediaRecorder: "
                          + e.getMessage());
                  releaseMediaRecorder();
                  return false;
     } catch (IOException e) {
                  Log.d("DEBUG",
                          "IOException preparing MediaRecorder: " + e.getMessage());
                  releaseMediaRecorder();
                  return false;
     }
  </code></pre>
  
  <p>Ex:</p>
  
  <pre><code>java.lang.IllegalStateException
  </code></pre>
  
  <p>Stacktrace:</p>
  
  <pre><code>java.lang.IllegalStateException
      at android.media.MediaRecorder.setOutputFormat(Native Method)
      at android.media.MediaRecorder.setProfile(MediaRecorder.java:366)
      at jp.osaka.E028.prepareVideoRecorder(E028.java:1441)
      at jp.osaka.E028.access$16(E028.java:1403)
      at jp.osaka.E028$6.onClick(E028.java:344)
      at android.view.View.performClick(View.java:3517)
      at android.view.View$PerformClick.run(View.java:14155)
      at android.os.Handler.handleCallback(Handler.java:605)
      at android.os.Handler.dispatchMessage(Handler.java:92)
      at android.os.Looper.loop(Looper.java:137)
      at android.app.ActivityThread.main(ActivityThread.java:4503)
      at java.lang.reflect.Method.invokeNative(Native Method)
      at java.lang.reflect.Method.invoke(Method.java:511)
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:809)
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)
      at dalvik.system.NativeStart.main(Native Method)
  </code></pre>
  
  <p>Why show error IllegalStateException when setting MediaRecorder?</p>