[Bug 47048] New: Logitech webcam does not show picture, only grey

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=47048

            Bug ID: 47048
           Summary: Logitech webcam does not show picture, only grey
           Product: Wine
           Version: 4.6
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: beniwtv at relamp.tk
      Distribution: ---

Created attachment 64216
  --> https://bugs.winehq.org/attachment.cgi?id=64216
Log when running webcam application with qcap debugging enabled

I have a Logitech C920 HD Pro Webcam that works flawlessly on v4l2 in any Linux
application. However, under Wine as long as I can remember this never worked in
the 4.x series or 3.21 (didn't test older) - only showing a grey picture (even
though the applications detect it).

Right now I am testing with Star Citizen's FOIP and "Portable Webcam"
application, both which seem to use qcap/DirectShow for this. 

I saw qcap being updated to v4l2 in 4.6 (even tried 4.7), but I still get a
grey picture only.

Portable Webcam can be obtained from SourceForge:
https://sourceforge.net/projects/portablewebcam/

I have attached a log with qcap debugging made with today's wine GIT version
(let me know if I can/should further increase wine debugging channels)

What's also to note (but probably not related to the error) is that Wine seems
to prefer the video1 device (a metadata/advanced settings device related to the
other one) and not video0, so I have to rm that device node.

Cheers :)

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