[Bug 100510] [radeon] Heavy artifacts during hw accelerated playback of wmv files

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100510

            Bug ID: 100510
           Summary: [radeon] Heavy artifacts during hw accelerated
                    playback of wmv files
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: libdrm
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: jan.burgmeier at unicon-software.com

Hi,

with versions newer than libdrm-2.4.66 I have heavy artifacts during hw
accelerated playback of wmv files vaapi/vdpau tested with gstreamer-
0.10 and ffmpeg based mpv.

The error occures only with wmv, h264 works.

Bisect result:
db138b9ba12a0de5d6140832c0679c2418e3e7e0 is the first bad commit
commit db138b9ba12a0de5d6140832c0679c2418e3e7e0
Author: Michel Dänzer <michel.daenzer at amd.com>
Date:   Thu Jan 21 18:08:49 2016 +0900

    radeon: Pass radeon_bo_open flags to the DRM_RADEON_GEM_CREATE ioctl

    Not doing so makes it impossible for radeon_bo_open callers to set any
    RADEON_GEM_* flags for the newly created BO.

    Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

If I revert this commit on the current master branch the artefacts are
gone.

System environment:
-- chipset: AMD GX-217GA SOC with Radeon(tm) HD Graphics
-- system architecture: 32-bit
-- xserver: 1.19.1
-- mesa: 13.0.3, 13.0.6, 17.0.2
-- libdrm: 2.4.74
-- kernel: 4.4.11
-- Linux distribution: eLux
-- Machine or mobo model: HP t620 dual core thin client

Regards,
Jan Burgmeier

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