title: How to get the codec list on Android 4.0
body: <p>Android provides a series of APIs such as 'MediaCodec' which can enable the user to get the codec information of the system since 4.1(API level 16).</p>
  
  <p>However, my question is how to get a codec list on 4.0.</p>
  
  <p>BTW, I have checked the source code of 4.1, the API implementation gets the info by parsing the file: system/etc/media_codec.xml. But on 4.0, there is NO such file.</p>