[gstreamer-bugs] [Bug 594306] New: ffdec_* sets channel-positions for common mono and stereo cases

[GStreamer (bugzilla.gnome.org)]

http://bugzilla.gnome.org/show_bug.cgi?id=594306

           Summary: ffdec_* sets channel-positions for common mono and
                    stereo cases
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-ffmpeg
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: notverysmart at gmail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


--- Comment #0 from Jonathan Matthew <notverysmart at gmail.com> 2009-09-06 13:10:11 UTC ---
Created an attachment (id=142592)
simple patch

The ffmpeg audio decoders set the channel-positions field in their caps in the
basic mono and stereo cases, which causes caps nego problems when you mix
ffdec-decoded audio with audio from other sources, which don't do this.  The
main place this shows up, for me at least, is in rhythmbox with crossfading
enabled.  See also bug 476370, where faad previously did the same thing.

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