remove libsamplerate and related dead code
sync Xcode project after libsamplerate drop, sync darwin configuration
Remove libsamplerate from MSVC project files
Update docs and gitignore after libsamplerate drop
Merge pull request #4629 from FernetMenta/byebye

remove libsamplerate and related dead code
videoplayer: adapt lateness detection and dropping to buffering
video player: present correct pts to user for a/v sync (after buffering in renderer)
videoplayer: some rework and documentation
renderer: bump buffers to 5
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
OMXPlayer: some caching fixes for pvr
fix incorrect display of fps when dr kicks in
renderer: allow some lateness within vblank interval
ActiveAE: slightly reduce buffer size