Bug 57541 - [SNB IVB] Video out ERROR while decoding some Chroma format(4:0:0) files
Summary: [SNB IVB] Video out ERROR while decoding some Chroma format(4:0:0) files
Status: VERIFIED FIXED
Alias: None
Product: libva
Classification: Unclassified
Component: intel (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: haihao
QA Contact:
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Blocks:
 
Reported: 2012-11-26 08:17 UTC by cc
Modified: 2014-03-28 02:55 UTC (History)
3 users (show)

See Also:
i915 platform:
i915 features:

Attachments

Description cc 2012-11-26 08:17:41 UTC 
Environment:
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libva: (staging branch)
commit 38c94cd922473095814ed9a9f99ad98fcc9c285d
Author: Rob Bradford <rob@linux.intel.com>
Date:   Fri Nov 2 10:57:47 2012 +0000

intel-driver: (staging branch)
commit c0ef9d99df37ae45589fecb898727be495e50304
Author: Joe Konno <joe.konno@intel.com>
Date:   Tue Nov 20 07:42:27 2012 -0800

Error info:
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The video out is not monochromatic display which we expected.

Reproduce steps:
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1.xinit&
2.mplayer -vo vaapi -va vaapi HPCAMOLQ_BRCM_B.264
Comment 1 xiaowei 2012-12-13 08:55:32 UTC 
Bug is root caused and patch is in review.

All decoded frame are considered as NV12 format in driver's, for YUV400 format senerios, we need set the chroma component of NV12 to a constant value(0x80), otherwise the converted ARGB from NV12 format is not correct and cause render issue.
Comment 2 ykzhao 2014-03-28 01:35:59 UTC 
It seems that Xiaowei already submitted the patch.
Does the issue still exist on the latest driver? If not, will you please close this bug?

Thanks.
    Yakui
Comment 3 zhenxiang.li 2014-03-28 02:55:19 UTC 
I tried to play it on sgb, no reproduce again.

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