* do not quit when controller init failed, just disable the controller
* Separate hooks for sdl-video and sdl-audio
* add a function to dump registered ffmpeg codecs
* fix sdlaudio crashed - when obtained spec is null
* SDL 1.2 controller hook - work with SDL_SetEventFilter
* disable vpx --enable-shared on Mac OS X
* separate keyboard/mouse control messages, plus remove SDL1.2 support