title: mCameraParameters.setPreviewSize causes takePicture callback to not fire
body: <p>I am trying to set a camera parameter <code>setPreviewSize</code> with a certain size, in my case 1280 x 720, on a Samsung galaxy s3 (i9300). </p>
  
  <pre><code>cameraParameters.setPreviewSize(1280, 720);//1280, 720 is in the getSupportedPreviewSizes
  mCamera.setParameters(cameraParameters);
  </code></pre>
  
  <p>This preview size is listed as a "supported size" under <code>cameraParameters.getSupportedPreviewSizes</code>. In this case it is the 2nd one (index 1).</p>
  
  <p>When I set the preview size to this, the preview works. I get the video stream displayed, but it appears that I do no longer get the jpeg <code>PictureCallback</code> when I call <code>mCamera.takePicture(null, null, mPicture)</code>. </p>
  
  <p>If i set the preview size to <code>970, 720</code> the callbacks get fired.</p>
  
  <p>Is there maybe some of the preview sizes that disables taking pictures? Or could this be hardware issues maybe?</p>