Bug 62007

Summary: [ILK] low U/V ssim value when decoding VC1 files
Product: libva Reporter: Du Yan <yanx.du>
Component: intelAssignee: haihao <haihao.xiang>
Status: VERIFIED INVALID QA Contact: Sean V Kelley <seanvk>
Severity: normal    
Priority: medium CC: ouping.zhang
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Du Yan 2013-03-08 06:09:16 UTC 
System Environment:
--------------------------
Libva: master 9f4dedc4de014cc665c32dfbac1c017f9396b563
Intel driver: master 82d6940694c7a650642ccb6d68bf01b70dba4dcc
Platform:ILK


Bug Info
------------------
low U/V ssim value with lots of VC1 files

e.g.

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

SMH0004.rcv 0.999862 0.999922 0.843119	0.876568 0.816349 0.84582 60 60
SML0000.rcv 0.999953 0.999974 0.706372	0.715927 0.796498 0.816733 15 15
SML0002.rcv 0.99985 0.999921 0.773229	0.816067 0.72473 0.765038 25 25
SML0003.rcv 0.999971 0.999994 0.649294	0.666552 0.739924 0.774088 15 15

SMH0004.rcv start from 1st frame, low U/V ssim value.
Y_SSIM = 1.000000
U_SSIM = 0.843119
V_SSIM = 0.816349
Comment 1 Ouping Zhang 2013-03-11 06:49:37 UTC 
ILK don't support VC1 decoding.

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