Opened 5 years ago

Closed 5 years ago

#4359 closed defect (fixed)

Decoding corruption with ffvp9

Reported by: debargha Owned by:
Priority: normal Component: avcodec
Version: git-master Keywords: vp9
Cc: Blocked By:
Blocking: Reproduced by developer: yes
Analyzed by developer: no


Summary of the bug:
Certain VP9 bit-streams show corruption when decoding with ffvp9. Decoding with libvpx-vp9 seem to be fine.

How to reproduce:

ffplay vp9aq_corruption.webm
[Corruption is visible in certain frames]

ffplay vp9aq_corruption.webm -vcodec libvpx-vp9
[No corruption here]

The corruption may be related to the segmentation feature sinc e the bit-stream uses segmentation to achieve aq.

Attachments (1)

vp9aq_corruption.webm (2.0 MB) - added by debargha 5 years ago.
A VP9 webm file that shows the reported corruption.

Change History (3)

Changed 5 years ago by debargha

A VP9 webm file that shows the reported corruption.

comment:1 Changed 5 years ago by jamrial

  • Component changed from ffplay to avcodec
  • Keywords vp9 added; VP9 ffvp9 removed
  • Reproduced by developer set
  • Status changed from new to open
  • Version changed from unspecified to git-master

The sample seems to decode fine with -threads 1, but shows artifacts with more than one.

comment:2 Changed 5 years ago by jamrial

  • Resolution set to fixed
  • Status changed from open to closed
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