判断android设备是否支持硬解码

参考：http://blog.chinaunix.net/uid-686647-id-3979372.html

      //读取系统配置文件/system/etc/media_codecc.xml      File file = new File("/system/etc/media_codecs.xml");      InputStream in = null;      try {      in = new FileInputStream(file);      } catch (Exception e) {    // TODO: handle exception      }      if(in == null)      {      android.util.Log.i("xp", "in == null");      }else{      android.util.Log.i("xp", "in != null");      }                  boolean isHardcode = false;      XmlPullParserFactory pullFactory;try {pullFactory = XmlPullParserFactory.newInstance();XmlPullParser xmlPullParser = pullFactory.newPullParser();xmlPullParser.setInput(in, "UTF-8");int eventType = xmlPullParser.getEventType();while (eventType != XmlPullParser.END_DOCUMENT) {String tagName = xmlPullParser.getName();switch (eventType) {case XmlPullParser.START_TAG:if ("MediaCodec".equals(tagName)) {String componentName = xmlPullParser.getAttributeValue(0);android.util.Log.i("xp", componentName);if(componentName.startsWith("OMX.")){if(!componentName.startsWith("OMX.google.")){isHardcode = true;}}}}eventType = xmlPullParser.next();}} catch (Exception e) {// TODO: handle exception}android.util.Log.i("xp", ""+isHardcode);

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