[Bug 765946] New: dv: Uses different pixel-aspect-ratio than gst-libav

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=765946

            Bug ID: 765946
           Summary: dv: Uses different pixel-aspect-ratio than gst-libav
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: slomo at coaxion.net
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

The ones from gst-libav are from the DV code in there
(libavcodec/dv_profile.c), and they give much nicer display aspect ratios when
applying them to the resolutions, e.g.

libav: (720*(8/9))/480  => 4:3
dv: (720*(10/11))/480 => something odd

Someone knows what's behind this? The numbers from dv seem to be the same as on
wikipedia, but might have completely different assumptions:
https://en.wikipedia.org/wiki/Pixel_aspect_ratio

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