renderer: reset render buffers on flush
winrenderer: implement flush, fixes loss of video when moving window to other screen
[python] fix null pointer dereference when invoking non-addon scripts
fix setting resolution on startup
Merge pull request #5425 from tamland/autoexec-fix

[python] fix null pointer dereference when invoking non-addon scripts
Merge pull request #5427 from FernetMenta/fullscreen2

fix setting resolution on startup
Merge pull request #5420 from FernetMenta/winrender

Winrender: fix moving window between screens
videoplayer: adapt lateness detection and dropping to buffering
video player: present correct pts to user for a/v sync (after buffering in renderer)
videoplayer: update frametime, it might change due to fps detection
videoplayer: give streams with invalid fps a chance for fps detection
dvdplayer: allow rewinding at end of stream, do a seek after rewind
dvdplayer: observe pts counter overflow
dvdplayer: avoid short screen flicker caused by unnecessary reconfigure of renderer
vdpau: advanced settings for auto deinterlacing
player: fix rewind
fix incorrect display of fps when dr kicks in
ActiveAE: slightly reduce buffer size
Revert "vdpau: comment some features that will be added later"

This reverts commit e00b4f65864d623ab4d2e9e5c06db138e661f1cf.
ffmpeg demuxer: faster channel change for PVR addons without internal demuxing
(such as MediaPortal, ArgusTV, MythTV, NextPVR)
Credits: FernetMenta, Davilla, Popcornmix, Whaupt