[Bug 675451] New: a52dec: can update caps if original number of audio channels has changed

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=675451
  GStreamer | gst-plugins-ugly | 0.10.x

           Summary: a52dec: can update caps if original number of audio
                    channels has changed
    Classification: Platform
           Product: GStreamer
           Version: 0.10.x
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-ugly
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: julien.isorce at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=213451)
 View: https://bugzilla.gnome.org/attachment.cgi?id=213451
 Review: https://bugzilla.gnome.org/review?bug=675451&attachment=213451

can update caps if original number of channels has changed

If the number of channels is changing, then a52dec should give a chance to
retrieve the orignal channels.

For exemple, if there are 2 audio channels and some minutes later, there are 6
audio channels in the ac3 packets, then the actual a52dec downmix from 6 to 2 
audio channels.

The patch allows to update caps if original number of channels has changed.

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