Add option to query hardware decoders only

Add an option to OMXCodec::QueryCodecs() to filter out
 software codecs.

Update stagefright command line tool to list the roles of codecs.

Change-Id: Icddb79118c30fe13cc3aea20f340174cc082c4e0
3 files changed
tree: 03f9b598a4e9b41242f8a6fed36a2c5a0f994d03
  1. camera/
  2. cmds/
  3. drm/
  4. include/
  5. media/
  6. services/