Opened 11 years ago

Closed 11 years ago

#913 closed defect (fixed)

Wrong pointer to SPS

Reported by: adarsh Owned by:
Priority: minor Milestone: HM-9.2
Component: HM Version: HM-9.1
Keywords: Cc: fbossen, ksuehring, davidf, jct-vc@…


While parsing SEI messages, the SPS parameters to be updated are updated using m_SEIs->m_pSPS that is initialized as

m_SEIs->m_pSPS = m_parameterSetManagerDecoder.getSPS(0);

The allocation should rather be

m_SEIs->m_pSPS = m_parameterSetManagerDecoder.getPrefetchedSPS(0);

because only that fetches the SPS from the correct buffer. Now, the use of "0" as the ID for the SPS to be accessed is another error (works only as long as the only SPS id used is 0), but that fix would need much more work.

Change History (4)

comment:1 Changed 11 years ago by DefaultCC Plugin

  • Cc fbossen ksuehring davidf jct-vc@… added

comment:2 Changed 11 years ago by adarsh

The mentioned line of code occurs in TDecTop::xDecodeSEI() in TDecTop.cpp.

comment:3 Changed 11 years ago by ksuehring

Well, that still is wrong, because it assumes there is a SPS with ID 0. I think we now decided that the active parameter sets SEI is supposed to activate an SPS. I think that part of K0120 is still missing.

comment:4 Changed 11 years ago by ksuehring

  • Milestone set to HM-9.2
  • Resolution set to fixed
  • Status changed from new to closed

fixed in r3226. More work is still necessary to support proper parameter set activation.

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  • Adarsh Krishnan Ramasubramonian(Reporter, Participant)
  • David Flynn(Subscriber)
  • Frank Bossen(Subscriber)
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  • Karsten Suehring(Subscriber, Participant, Always)