Bug 62137

Summary:	[SNB/IVB/HSW] low ssim value with monochroma stream
Product:	libva	Reporter:	Du Yan <yanx.du>
Component:	intel	Assignee:	haihao <haihao.xiang>
Status:	RESOLVED NOTABUG	QA Contact:	Sean V Kelley <seanvk>
Severity:	normal
Priority:	medium	CC:	lianyuex.yang, ouping.zhang, xunx.fang, zhenxiang.li
Version:	unspecified
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

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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