mpv-player/mpv — pull request #575 by xylosper (2014-02-22 06:35:27+00:00)
Title: provide per-file-options for loadfile command

mpv provides per-file-options when open a file from command line, but there's no equivalent thing for 'loadfile' command when open a file using libmpv or slave mode.
This patch adds an optional parameter which repsents option list of key/value pairs for loadfile command.
For instance, to start a file from 30sec, call 'loadfile start=30'.

I'm not sure I'm doing this in right way because I don't fully understand mpv's property/command system so please review the codes.