I'd like to donate: https://github.com/diddledan/libopenh264-helper for use on the remote parts thingy (https://wiki.ubuntu.com/snapcraft/parts) I'm happy for it to be forked into a more central and official location so that accountability can be maintained if it is required to do so.
- add  to your launcher (once included in remote parts list)
- prepend your command with
libopenh264-launch, like  or in combination with a desktop-helper, like  if foo is in the $PATH. You can as well specify  to include the full path to the SNAP's filesystem.
- add needed plugs to your application:
- for a graphical application (Think about adding opengl for hardware acceleration).
- if your application needs access to sound. 
- access to user's home directory. 
- access to Mir. 
command: libopenh264-launch foo
command: desktop-launch libopenh264-launch foo
command: libopenh264-launch $SNAP/foo
plugs: [X11 (or unity7 for appmenu integration)]