FIX: [mediacodec] ART is not happy with non-existent values in map
AlarmClock: xbmc.powerdown does not exist anymore
ActiveAE: fix idling of engine due to high number of samples in sink buffers
ActiveAE: add missing lock to GetWaterLevel
dxva-hd: fix past/future frames and a/v sync
renderer: fix queue size for DXVA-HD
Merge pull request #4593 from FernetMenta/dxva

dxva-hd: fix past/future frames and a/v sync
Merge pull request #4589 from FernetMenta/aefixes

ActiveAE: fix idling of engine due to high number of samples in sink buf...
Merge pull request #4587 from fritsch/xbmc-upstream

AlarmClock: Show correct string for shutdown timer
Merge pull request #4576 from koying/fixamcart

FIX: [mediacodec] ART is not happy with non-existent values in map
[depends] move ffmpeg to unified deps
[configure] remove internal ffmpeg
remove ffmpeg from tree
ffmpeg: remove dll wrappers
add ffmpeg lock manager
todo: refactor to own file
ffmpeg: move callbacks into separate file
remove ffmpeg dlls from generated headers
not removing win32 as this might still be needed?
[rpi] setup-sdk.sh: allow overriding of buildroot and xbmc install paths
also don't require root if not needed
add ffmpeg makefile for rpi
[WIN32] download and compile ffmpeg from remote source.