Bug 64272 - h264 default matrix order wrong causes ssim low value
Summary: h264 default matrix order wrong causes ssim low value
Status: VERIFIED FIXED
Alias: None
Product: libva
Classification: Unclassified
Component: gst-vaapi (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Zhong Cong
QA Contact: Ouping Zhang
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-05-06 10:34 UTC by Zhong Cong
Modified: 2013-05-07 08:42 UTC (History)
2 users (show)

See Also:
i915 platform:
i915 features:

Attachments
h264-modify-default-matrices-order (2.35 KB, text/plain)
2013-05-06 10:41 UTC, Zhong Cong 		Details
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Description Zhong Cong 2013-05-06 10:34:46 UTC 
FREXT02_JVC_C.264 
start from 1st frame, low ssim

Y_SSIM = 0.920795
U_SSIM = 0.987066
V_SSIM = 0.993604

Y_MIN_SSIM =     0.904751
Comment 1 Zhong Cong 2013-05-06 10:41:44 UTC 
Created attachment 78915 [details]
h264-modify-default-matrices-order

default scaling_lists are set in raster scan which should be prepared in zigzag scan order. This patch is to fix it
Comment 2 Yang Lianyue 2013-05-07 08:42:52 UTC 
Test OK. Issue can't be reproduced. Close it.

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