Opened 13 years ago

Closed 10 years ago

#203 closed defect (fixed)

undefined memory access with SlideShow LP-LC QP=32

Reported by: davidf Owned by:
Priority: minor Milestone:
Component: HM Version: HM-3.4
Keywords: Cc: fbossen, ksuehring, davidf, jct-vc@…

Description

A mismatch has been detected between running the encoder on different platforms for a particular specific sequence and configuration.

Using the configuration:
​ftp://ftp.kw.bbc.co.uk/hevc/hm-4.0-anchors/logs.bbc/ldP_lc/SlideShow_1280x720_20/QP=32/encoder.cfg

Further checking has with valgrind has revealed:

POC    7 TId: 0 ( P-SLICE, QP 35 )       8552 bits [Y 41.2143 dB    U 46.6770 dB    V 49.2018 dB] [ET   720 ] [L0 6 5 4 0 ] [L1 ] [MD5:a7df59fd976de5bfdc4c36a0558aba67]
==14058== Conditional jump or move depends on uninitialised value(s)
==14058==    at 0x438C8B: TEncSearch::xCheckBestMVP(TComDataCU*, RefPicList, TComMv, TComMv&, int&, unsigned int&, unsigned int&) (in /dump/df-4.0rc1-anchors/bin/jctvc-tmuc-enc-28c4437-remotes-svn-upstream-tags-HM-4.0rc1)

Attachments (1)

hm-4.0rc1-slideshow-qp32-lp-lc.log​ (65.6 KB) - added by davidf 13 years ago.
valgrind output for encoding the first 11 frames

Download all attachments as: .zip

Change History (6)

Changed 13 years ago by davidf

valgrind output for encoding the first 11 frames

comment:1 Changed 13 years ago by fbossen

Fixed in r1358 (still need to remove macro)

comment:2 Changed 12 years ago by davidf

  • Component set to HM

Updating component after adding WD (Text) tickets

comment:3 Changed 12 years ago by davidf

  • Cc fbossen ksuehring davidf added

comment:4 Changed 12 years ago by davidf

  • Cc jct-vc@… added

comment:5 Changed 10 years ago by fbossen

  • Resolution set to fixed
  • Status changed from new to closed
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  • David Flynn(Reporter, Subscriber, Participant)
  • Frank Bossen(Subscriber, Participant)
  • jct-vc@…(Subscriber)
  • karl.sharman@…(Always)
  • Karsten Suehring(Subscriber, Always)