[Bug 766265] opusdec with FEC breaks when packet sizes change

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=766265

Olivier Crête <olivier.crete at ocrete.ca> changed:

           What    |Removed                     |Added
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                 CC|                            |olivier.crete at ocrete.ca

--- Comment #1 from Olivier Crête <olivier.crete at ocrete.ca> ---
This kind of usecase makes it really hard for the packet loss concealer to
guess the size of the next packet.. You should really avoid fluctuating the
number of frames per packet like that. But there seems to indeed be some kind
of actual bug.

I've been testing with the rtpjitterbuffer patch from bug #:
gst-launch-1.0 multifilesrc location=./c%04d.rtp caps='application/x-rtp,
payload=111, clock-rate=48000' ! rtpjitterbuffer do-lost=false ! udpsink
port=8888 sync=1

gst-launch-1.0 udpsrc port=8888 ! application/x-rtp, payload=111,
media-type=audio, encoding-name=OPUS, clock-rate=48000 ! rtpjitterbuffer
do-lost=true ! rtpopusdepay ! opusparse ! opusdec plc=true use-inband-fec=1 !
pulsesink

The patch I'm attaching here just prevents it from stopping, the jitterbuffer
seems to still produce lost packet events with odd durations.

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