Bug 56345

Summary:	[gst-vaapi] AVC Poor decoding quality compare with software decoding.
Product:	libva	Reporter:	Du Yan <yanx.du>
Component:	intel	Assignee:	Zhong Cong <congx.zhong>
Status:	VERIFIED NOTOURBUG	QA Contact:
Severity:	normal
Priority:	medium	CC:	chao.a.chen, feng.yuan, halley.zhao, ouping.zhang, seanvk
Version:	unspecified
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Du Yan 2012-10-24 07:14:25 UTC

Environment:
--------------

Libva:
commit 86484495155e65fd8ac33ed3ede43fb42defd966
Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Date:   Tue Oct 9 06:21:59 2012 +0200

Inter driver:
commit f033e72cc4a4e3ae2e84fa80be7b311f75f2c542
Author: Xiang, Haihao <haihao.xiang@intel.com>
Date:   Mon Oct 15 11:10:18 2012 -0400

Gstream-vaapi:
commit 8369e5ca7589cb93b6fed4fb6b91e576ecd1e139
Author: Zhao,Halley <halley.zhao@intel.com>
Date:   Tue Oct 23 00:56:45 2012 +0800


Bug Info:
--------------
Platform: SNB,IVB,HSW
Poor decoding quality compare with software decoding.

The compared result is as below:

SOCCER_704x576_30_orig_02.yuv
Bitrate = 500 
gst-vaapi: 11.72113 11.72113 11.72113
software:  27.117 37.462 39.186
Bitrate = 3500 
gst-vaapi: 11.65418 11.65418 11.65418
software:  33.824 41.428 43.169
Bitrate = 10000 
gst-vaapi: 11.64281 11.64281 11.64281
software:  39.634 44.809 46.534

MOBILE_352x288_30_orig_01.yuv
Bitrate = 150 
gst-vaapi: 9.48280 9.48280 9.48280
software:  15.474 21.001 20.181
Bitrate = 600 
gst-vaapi: 9.47329 9.47329 9.47329
software:  19.165 26.880 25.512
Bitrate = 2000 
gst-vaapi: 9.17846 9.17846 9.17846
software:  23.936 31.382 30.980

Comment 1 Du Yan 2012-11-14 05:38:34 UTC

Libva (staging) c59c512df262cdc44fb6e9101621f246eda176df
Inter-driver (staging) 3bd6f3b3611dd9a39a3075f82cf938fa08e22884
Gst-vaapi (qa) e7d517323fd98608918de1211dc42f795b48765f

Platfrom: IVB
Issue can be reproduced.

Comment 2 Du Yan 2013-02-25 02:22:54 UTC

Duplicate

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