[Bug 797214] New: opus inband fec bug

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=797214

            Bug ID: 797214
           Summary: opus inband fec bug
    Classification: Platform
           Product: GStreamer
           Version: 1.14.x
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: colin.cdry at hotmail.fr
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

I recently upgraded from GStreamer 1.12.4 to 1.14.3 and I noticed that opus
sound with inband FEC produce a pretty bad sound.

The following pipeline reproduce the bug on my computer, it works with 1.12.4
but not in 1.14.3 (video part is optional of course) :

gst-launch-1.0.exe uridecodebin uri=filewithsound.mp4 name=udb udb. !
videoconvert ! videorate ! autovideosink udb. ! audioconvert ! audioresample !
opusenc audio-type=2048 inband-fec=true packet-loss-percentage=10 ! opusdec
plc=true use-inband-fec=true ! audioconvert ! audioresample ! autoaudiosink

I did not notice any change of param in the doc, so am I doing anything wrong
or is Opus inband FEC bugging?

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