[Bug 667303] New: systemclock: use CoreVideo on Mac OS X

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=667303
  GStreamer | gstreamer (core) | git

           Summary: systemclock: use CoreVideo on Mac OS X
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Mac OS
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: havard.graff at tandberg.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=204621)
 View: https://bugzilla.gnome.org/attachment.cgi?id=204621
 Review: https://bugzilla.gnome.org/review?bug=667303&attachment=204621

patch

CoreAudio and CoreVideo have a common clock, so using CoreVideo in
GstSystemClock means that Mac-specific elements will be able to use
timestamps from native APIs. It is also likely to be the best clock
source on this OS.

However, on iOS this does not work very well, so make sure it is
not being used there, even if available.

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