[Bug 51104] New: mf:mf crashes on Windows + NVidia

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51104

            Bug ID: 51104
           Summary: mf:mf crashes on Windows + NVidia
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: mfplat
          Assignee: wine-bugs at winehq.org
          Reporter: fgouget at codeweavers.com
      Distribution: ---

mf:mf crashes on the cw-gtx560 and cw-rx460 machines but not on the TestBot VMs
(except w7u-2qxl, but that's a different crash).

https://test.winehq.org/data/patterns.html#mf:mf


The crash happens on the same test_evr() line from Windows 8.1 to Windows 10
2009:

    hr = MFGetService((IUnknown *)stream_sink2, &MR_VIDEO_ACCELERATION_SERVICE,
&IID_IMFVideoSampleAllocator,
            (void **)&allocator);


A bisect shows that the commit causing the crash is not the one that added this
line but the one below:

commit 430c179fe86dd7f9b3ddfb6ef30f6359633ef0b8
Author: Nikolay Sivov <nsivov at codeweavers.com>
Date:   Fri Oct 9 13:54:38 2020 +0300

    mf/evr: Set stream media type to the mixer.

    Signed-off-by: Nikolay Sivov <nsivov at codeweavers.com>
    Signed-off-by: Alexandre Julliard <julliard at winehq.org>

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