VTM version 9.1

Note: this is a bug-fix release. It should be possible to decode single-layer bitstreams generated with VTM 9.0.


  • JVET-R0185: Updating signalling related to OLS DPB parameters in VPS
  • Add example entropy_coding_synchronization.cfg
  • JVET-R0041: Picture types related constraints
  • bug fixes for bitstream constrain checks causing the decoder to fail for multi-layer bitstreams
  • various other bug fixes