[Bug 84944] tearing on radeonsi vdpau deinterlacer - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 84944] tearing on radeonsi vdpau deinterlacer
Date: Thu, 13 Nov 2014 13:50:32 +0000	[thread overview]
Message-ID: <bug-84944-502-auiMoIGbaD@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-84944-502@http.bugs.freedesktop.org/>

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https://bugs.freedesktop.org/show_bug.cgi?id=84944

--- Comment #29 from warpme@o2.pl ---
(In reply to Michel Dänzer from comment #28)
> 
> Oops, my first debugging patch has a bug which causes can_exchange to
> spuriously return FALSE. Does it work if you remove that patch?

Michel,

After patch removal indeed page flipping started to work so no tearing anymore.

Unfortunately now I see problem with 2x DI. It manifests as jumpy playback.
This is typical when DI is too slow to keep frame rate. I have identical effect
on Nvidia's ION1 with Advanced 2x DI (ION1 is too slow for this advanced DI).

Mythtv reports:

2014-11-13 13:47:01.013753 I Player(1): Video is 3.18365 frames behind audio
(too slow), dropping frame to catch up.
2014-11-13 13:47:01.013783 I AOBase: Pause 1
2014-11-13 13:47:01.014047 I Player(1): Video is 3.45023 frames behind audio
(too slow), dropping frame to catch up.
2014-11-13 13:47:01.014064 I AOBase: Pause 1
2014-11-13 13:47:01.014171 I Player(1): Video is 3.40015 frames behind audio
(too slow), dropping frame to catch up.
2014-11-13 13:47:01.014188 I AOBase: Pause 1
2014-11-13 13:47:01.014286 I Player(1): Video is 3.1126 frames behind audio
(too slow), dropping frame to catch up. 

It looks like 2x DI problem is only with enabled glamor - as on Brazos with EXA
2x DI works perfect. Also on Kabini it was working OK  - but it was OK when
page flipping was non-functional. I didn't test Brazos with glamor yet. 

I done tests with mesa 10.2.8/10.3.3 and xserver 1.16.1/1.16.2 In all cases
glamor 2x DI issue is present.

If You want to see issue visually - I have short video clip with issue...

br

PS: is it possible that DI issue is because playback window coordinates are -1
?

  Absolute upper-left X:  -1
  Absolute upper-left Y:  -1
  Relative upper-left X:  -1
  Relative upper-left Y:  -1

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