[Feature Request] autodetect HLS & Dash

**What is the need and use case of this feature?**
 
Currently you have to manually pass a `type` on android if you're using HLS or Dash. I think this should be enhanced such that `default` will attempt to auto-detect it for you based on the extension of the URL (`.m3u8` -> `hls`, `.mpd` -> `dash`).