JVET-N0242: non-linear ALF (clipping)
This adds Non-linear ALF filters as in JVET-N0242 (Test-2).
Compared to CE code:
- other tests were removed
- code for JVET_M0132_APS and for JVET_M0277_FIX_PCM_DISABLEFILTER was merged
- alignment on draft text was done (derivation of the clipping values from the internal bitdepth)
- added encoder options
UseNonLinearAlfLuma
andUseNonLinearAlfChroma
to enable/disable non-linear filters optimization
Edited by Jonathan Taquet