Bug 61485 - [SNB/IVB/HSW] SSIM value is low with att_mismatch_att.bits (MPEG2)
Summary: [SNB/IVB/HSW] SSIM value is low with att_mismatch_att.bits (MPEG2)
Status: RESOLVED WONTFIX
Alias: None
Product: libva
Classification: Unclassified
Component: intel (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: haihao
QA Contact: Sean V Kelley
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-02-26 07:02 UTC by Du Yan
Modified: 2015-11-19 00:43 UTC (History)
6 users (show)

See Also:
i915 platform:
i915 features:

Attachments

Description Du Yan 2013-02-26 07:02:43 UTC 
Test Environment
--------------------------------
Platform: HSW IVB SNB
Libva: (staging)8abb2b3dc9b122272d1e26a90cbf68f76d3aba8a
intel_driver: (staging) b3139d1a278d9daac40987f0a99c2a797c0db988


Bug Info
----------------------------
SSIM value is low with att_mismatch_att.bits
att_mismatch_att.bits 0.973893 0.995080 1.000000 1.000000 1.000000 1.000000

and we found that after No.11 frame, SSIM value became low.
Comment 1 Du Yan 2013-02-26 07:09:40 UTC 
update:
After No.111 frame, SSIM value became low.
Comment 2 Ouping Zhang 2013-02-26 07:14:29 UTC 
start from the 111st frame, low ssim.
Y_SSIM = 0.997958
U_SSIM = 1.000000
V_SSIM = 1.000000

Y_MIN_SSIM =     0.973893
Comment 3 haihao 2015-11-19 00:43:11 UTC 
This issue was reported against staging branch, we won't fix issues on staging branch any more. Please file a new bug if you still experience this issue on master branch.

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