[DVDInputStreamNavigator] allow fallback to root menu call if title menu call fails (like VLC)
[DVDInputStreamNavigator] allow to return from "endless" loop of NOPs
add logmsg when enable changed
Merge pull request #4420 from t4-ravenbird/woa-log-enable

woa - add logmsg when enable changed
Merge pull request #4296 from Voyager1/dvd-various-fixes

DVD various fixes related to libdvdnav issues and skip to menu
[depends] move ffmpeg to unified deps
[configure] remove internal ffmpeg
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.
[WIN32] make XBMC compile, build and run with the ffmpeg link libraries.
[WIN32] use ffmpeg version from tools\depends\target\ffmpeg\FFMPEG-VERSION
[WIN32] prepare mingw build files for jenkins.
[WIN32] removed old mingw build files.
ffmpeg: bump version
videoplayer: adapt lateness detection and dropping to buffering