Opened 9 years ago

Closed 9 years ago

#4359 closed defect (fixed)

Decoding corruption with ffvp9

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

Description

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 Mukherjee 9 years ago.
A VP9 webm file that shows the reported corruption.

Change History (3)

by Debargha Mukherjee, 9 years ago

Attachment: vp9aq_corruption.webm added

A VP9 webm file that shows the reported corruption.

comment:1 by James, 9 years ago

Component: ffplayavcodec
Keywords: vp9 added; VP9 ffvp9 removed
Reproduced by developer: set
Status: newopen
Version: unspecifiedgit-master

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

comment:2 by James, 9 years ago

Resolution: fixed
Status: openclosed
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