[Bug 744338] opusdec: LATENCY query handling looks wrong

GStreamer (GNOME Bugzilla) bugzilla at gnome.org
Fri Jul 31 04:34:24 PDT 2015


https://bugzilla.gnome.org/show_bug.cgi?id=744338

Ilya Konstantinov <ilya.konstantinov at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |ilya.konstantinov at gmail.com

--- Comment #17 from Ilya Konstantinov <ilya.konstantinov at gmail.com> ---
(In reply to Sebastian Dröge (slomo) from comment #7)
> So for non-FEC mode the latency should be 0 here as it currently is... for
> FEC mode you need to set both latencies to the worst-case duration of one
> packet

$ gst-inspect-1.0 opusenc

  frame-size          : The duration of an audio frame, in ms
                           (2): 2.5              - 2.5
                           (5): 5                - 5
                           (10): 10               - 10
                           (20): 20               - 20
                           (40): 40               - 40
                           (60): 60               - 60

So why are we setting min-latency to 120ms? It seems to account for two
packets, while we only delay by one packet (in FEC) and 0 packets (otherwise).

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