Opened 3 years ago

Closed 2 years ago

#1527 closed defect (fixed)

Bug in reference picture list construction for dependent layers

Reported by: delagrangep Owned by:
Priority: minor Milestone: VTM-16.0
Component: VTM Version: VTM-15.0
Keywords: Cc: ksuehring, XiangLi, fbossen, jvet@…


When base layer picture is intra, all inactive pictures get discarded from the RPL, which causes a severe quality drop in the last GOP of a chunk (when ending with an I picture), because at the beginning, the adjacent picture, which should be the best reference, is no more in the RPL. Quality then recovers slowly until the end of the GOP. The effect is very visible in 30 fps sequences, that contain a single GOP per chunk.

A fix is provided in !2144

Change history (1)

comment:1 Changed 2 years ago by fbossen

  • Milestone set to VTM-16.0
  • Resolution set to fixed
  • Status changed from new to closed
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