Opened 12 years ago

Closed 12 years ago

#261 closed defect (fixed)

wavefrontsynchro=1 causes decoder crashes

Reported by: gordon Owned by:
Priority: minor Milestone: HM-5.1
Component: HM Version: HM-5.0
Keywords: wavefrontsynchro Cc: fbossen, ksuehring, davidf, jct-vc@…


A newly introduced CABAC context (m_cCUSigCoeffGroupSCModel) is not being saved correctly in the encoder when WaveFrontSynchro is activated in the config. This causes decoder mismatches and crashes.

Although the minimum change is just to save the context correctly in TEncSbac::xCopyContextsFrom, the attached patches change both TEncSbac::xCopyContextsFrom and TDecSbac::xCopyContextsFrom, replacing the by-name context copies with a single memcpy. This will avoid future problems like this.

Attachments (2)

TDecSbac.cpp.patch (3.6 KB) - added by gordon 12 years ago.
TEncSbac.cpp.patch (3.5 KB) - added by gordon 12 years ago.

Download all attachments as: .zip

Change History (5)

comment:1 Changed 12 years ago by DefaultCC Plugin

  • Cc fbossen ksuehring davidf added

Changed 12 years ago by gordon

Changed 12 years ago by gordon

comment:2 Changed 12 years ago by ksuehring

  • Milestone set to HM-5.1
  • Resolution set to fixed
  • Status changed from new to closed

Patch applied in rev 1702 (HM-5.0-dev-bugfix)

comment:3 Changed 12 years ago by davidf

  • Cc jct-vc@… added
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  • David Flynn(Subscriber, Participant)
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  • Karsten Suehring(Subscriber, Participant, Always)