[gstreamer-bugs] [Bug 632442] New: [vorbisenc] failed to dynamically switch between 2 and 6 audio channels

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=632442
  GStreamer | gst-plugins-base | git

           Summary: [vorbisenc] failed to dynamically switch between 2 and
                    6 audio channels
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: julien.isorce at gmail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


Created an attachment (id=172596)
 --> (https://bugzilla.gnome.org/attachment.cgi?id=172596)
aac file that contains 2 audio channels then 6 then 2 then 6 (recorded with
faac outputformat=1)

** steps to reproduce:

gst-launch-0.10 filesrc location=res.aac ! aacparse ! faad ! audioconvert !
vorbisenc ! oggmux ! filesink location=res.ogg

** Actual result:

You can hear to beginning of res.ogg but when switching to 6 audio channels,
you can't hear. (data for 6 channels is assumed to be 2)

** Expected result:

You should be able to hear the whole audio stream from res.ogg

** Other infos:

- You can hear with aacparse: gst-launch-0.10 filesrc location=res.aac !
aacparse ! faad ! alsasink

- I think the problem does not come from audioconvert because gst-launch-0.10
filesrc location=res.aac ! aacparse ! faad ! audioconvert ! faac outputformat=1
! filesink location=res2.aac  preserves the switchs.

- I do not know if vorbisdec is able to do that but for now I think the problem
comes from vorbisenc side.

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