From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 110257] Major artifacts in mpeg2 vaapi hw decoding
Date: Fri, 17 May 2019 04:52:19 +0000 [thread overview]
Message-ID: <bug-110257-502-VNcPd7bSee@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-110257-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=110257
--- Comment #2 from Andrew Randrianasulu <randrik@mail.ru> ---
wasn't this fixed by
https://cgit.freedesktop.org/mesa/mesa/commit/?id=d507bcdcf26b417dea201090165af651253b6b11
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st/va: reverse qt matrix back to its original order
The quantiser matrix that VAAPI provides has been applied with inverse z-scan.
However, what we expect in MPEG2 picture description is the original order.
Therefore, we need to reverse it back to its original order.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110257
Cc: mesa-stable@lists.freedesktop.org
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I can only test with Cinelerra-GG, and my nv92 crad decodes 1080p25 mpeg2 very
slowly (video decoder clock problem) - but for me images were ok!
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next prev parent reply other threads:[~2019-05-17 4:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-27 11:23 [Bug 110257] Major artifacts in mpeg2 vaapi hw decoding bugzilla-daemon
2019-03-27 11:23 ` bugzilla-daemon
2019-03-27 11:27 ` bugzilla-daemon
2019-05-17 4:52 ` bugzilla-daemon [this message]
2019-05-17 5:49 ` bugzilla-daemon
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