* volume status display when changed (slider/image/percentage)
* elm gesture drag to left/right for forward/rewind
* elm gesture drag up/down for prev/next
* emotion engine selection options
* timeline thumbnails on position slider
* playlist display + selection from playlist (on left?)
* right click control panel (ala terminology)
* about display/popup (from panel?)
* mouse wheel for forward/rewind and/or prev/next and/or volume up/down
* audio channel list/selection
* spu channel list/selection
* video channel list/selection
* handle non-seekable content (eg streams)
* prefer gl engine (needs wl/x11 independent preference selection)
* cmdline options
* add subtitle file cmdline
* loop all option
* show busy anim until opened cb or failure
* add button/control top-left next to audio to do fullscreen/normal toggle