AESinkPULSE: Revisit volume
AE: User per cent volume by default
ActiveAE: verify resample context before using it
Merge pull request #4502 from fritsch/pa-revisit-volume2

AESink: Revisit volume part 2
Merge pull request #4510 from FernetMenta/aefixes

ActiveAE: verify resample context before using it
[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?
sq to configure - add --with-ffmpeg=force option
this will always build our ffmpeg version, even if its found in system
only enable auto building ffmpeg if we are not cross compiling
[rpi] setup-sdk.sh: allow overriding of buildroot and xbmc install paths
also don't require root if not needed
sq to configure - fixup after upstream rebase
add ffmpeg makefile for rpi
sq to configure - unset PKG_CONFIG_SYSROOT_DIR when getting FFMPEG_LIBDIR
sq to setup-sdk.sh - fix sudo needs detection
bump ffmpeg