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work around for the green stripe defect at the begining of vp8 playback on baytrail #9
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April 29, 2014 07:59
on baytrail, in order to support vp8, i965/gem alloc the surface buffer, then psb/ttm imports the above buffer for vp8 decoding. sometimes, there is green stripes at the begining of the video playback, especiall when the video resolution is small. I think the root reason is lacks of memory coherency between gem and ttm. it is a temp work around to less the defect by decoding the first frame many times, and use the last one for rendering.
This was referenced Sep 14, 2016
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