Bug 62137 - [SNB/IVB/HSW] low ssim value with monochroma stream
Summary: [SNB/IVB/HSW] low ssim value with monochroma stream
Status: RESOLVED NOTABUG
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: 2013-03-11 03:20 UTC by Du Yan
Modified: 2014-04-04 01:54 UTC (History)
4 users (show)

See Also:
i915 platform:
i915 features:

Attachments

Description Du Yan 2013-03-11 03:20:20 UTC 
Environment
------------------------
Libva: master 9f4dedc4de014cc665c32dfbac1c017f9396b563
Intel driver: master 82d6940694c7a650642ccb6d68bf01b70dba4dcc
Platform:SNB/IVB/HSW


Bug Info
---------------------------
[SNB/IVB/HSW] low ssim value with monochroma stream 

file name Y SSIM extreme Y SSIM average	U SSIM extreme	U SSIM average	V SSIM extreme	V SSIM average	frame no dumped frame no

HPCVMOLQ_BRCM_B.264 0.335394 0.499599 0.100478 0.152534 0.070959 0.106084 66 100
HPCAMOLQ_BRCM_B.264 0.337133 0.500147 0.104297 0.152873	0.071269 0.107229 66 100

HPCAMOLQ_BRCM_B.264, start from 1st frame, low U/V ssim, and start from 2nd low Y/U/V ssim.
Y_SSIM = 1.000000
U_SSIM = 0.206225
V_SSIM = 0.112940
Y_SSIM = 0.386734
U_SSIM = 0.120663
V_SSIM = 0.116216

Y_MIN_SSIM =     0.337133
Comment 1 zhenxiang.li 2014-04-04 01:35:27 UTC 
Add ssim_op_yuv400 to compare the ssim value, under verifying its correctness
Comment 2 zhenxiang.li 2014-04-04 01:37:40 UTC 
passed in nightly testing

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