title: ffmpeg Unable to find a suitable output format for 'ffmpeg -i '
body: <p>Hi everyone i try to mirror my video file i use this library for ffmpeg</p>
  
  <p>compile 'com.writingminds:FFmpegAndroid:0.3.2' </p>
  
  <p>and this is my commande : </p>
  
  <p>uriPathOut = getInternalDirectoryPath() + "/Movies/3.mp4";
   uriPathIn = getInternalDirectoryPath() + "/Movies/1.mp4";</p>
  
  <p>cmd = new String[]{"ffmpeg -i",uriPathIn," -vf \"vflip\" -metadata:s:v rotate=180 ",uriPathOut};</p>
  
  <p>and i always get this error : </p>
  
  <p>'[NULL @ 0xb84192d0] Unable to find a suitable output format for 'ffmpeg -i'
   ffmpeg -i: Invalid argument'</p>
  
  <p>is there any solution help me please.</p>