[Bug 111099] Green video when playing a hevc video with vdpau - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 111099] Green video when playing a hevc video with vdpau
Date: Wed, 10 Jul 2019 07:58:08 +0000	[thread overview]
Message-ID: <bug-111099-502@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=111099

            Bug ID: 111099
           Summary: Green video when playing a hevc video with vdpau
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: pierre-eric.pelloux-prayer@amd.com
        QA Contact: dri-devel@lists.freedesktop.org

On AMD hardware (at least Polaris and Raven), playing some videos with vdpau
can result in a green screen.

Steps to reproduce:
- download https://www.libde265.org/hevc-bitstreams/bbb-1920x1080-cfg02.mkv
- use x11 (ie not wayland)
- mpv --vo=opengl --hwdec=vdpau bbb-1920x1080-cfg02.mkv

This is a regression that started with commit:
cb446dc0fa5c68f681108f4613560543aa4cf553 (from MR
https://gitlab.freedesktop.org/mesa/mesa/merge_requests/1226)

Reverting the commits from this MR on master fixes the issue.

AFAIU the problem is this line:

   /* do we have different screen objects ? */
   if (res->screen != st->pipe->screen) {
      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV")

Before this MR the screen objects were identical but now there are different.

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