[Freeswitch-users] Opus PLC issue - can this be a bug?

[Thomas]

Just retested with latest master, still there.

It also sometimes includes this:

switch_core_media.c:2421 alternate payload received (received 72, expecting 111)
switch_core_media.c:2444 Could not change to payload type 72, ignoring...

or this

mod_opus.c:346 OPUS_INVALID_PACKET ! nb_opus_frames: -4
mod_opus.c:836 Decoder Error: corrupted stream fs:4080 plc:false!
switch_core_io.c:1244 Codec OPUS (STANDARD) decoder error!

When I test through echo without any decoding, it sounds surprisingly good for 5% packet loss. So it seems like an FS 
issue. It's quite strange though. Will file a jira.


On 04.10.2015 16:37, Brian West wrote:
> Have you tried with code from today?  we had a regression I think that was resolved late yesterday.
>
> On Sun, Oct 4, 2015 at 1:41 PM, Thomas <lists at virtues.net <mailto:lists at virtues.net>> wrote:
>
>     Hello list,
>
>     on a connection with an unfortunate amount of packet loss, I'm getting a lot of these:
>
>     mod_opus.c:289 FEC in CELT_ONLY mode ?!
>
>     ... with the occasional ...
>
>     mod_opus.c:801 Decoder Error: corrupted stream fs:4080 plc:false!
>     switch_core_io.c:622 Codec RAW Signed Linear (16 bit) decoder error! [9]
>
>     ... and ...
>
>     switch_rtp.c:875 Invalid STUN/ICE packet received 493 bytes
>
>     That's accompanied by robotic distortion.
>
>     This sounds more like FS is receiving total junk rather than missing packets, but surely there must be checksums
>     preventing errors inside these packets? Can this really be a bug in FS, or do I need an exorcist for that internet
>     connection? :)
>
>     Cheers!
>
>     Thomas
>
>     P.S.: Last nights master
>
>
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