[Freeswitch-users] mod_opus bug?

Fri Jan 16 22:11:32 MSK 2015

It's not a bug in Freeswitch, it's the Comrex losing the usedtx=0, not Freeswitch. I forgot that I had changed that 
myself before and with the latest mod_opus update I switched back to the vanilla version.

My bad, sorry!

It would be nice to have more config options for opus to work around such things. :)

On 16.01.2015 15:39, Anthony Minessale wrote:
> Looking at your issue however I don't see dtx being enabled when I lab up what you described.
>
> Try this in vars.xml to disable CNG completely.
>
> <X-PRE-PROCESScmd="set"data="suppress_cng=true"/>
>
>
>
>
> On Fri, Jan 16, 2015 at 12:28 PM, Anthony Minessale <anthony.minessale at gmail.com <mailto:anthony.minessale at gmail.com>>
> wrote:
>
>     Its better to ask by filing the jira its one click to close it and if there is a real issue we need logs etc
>     attached and something to reference if we push a fix.
>
>
>
>     On Fri, Jan 16, 2015 at 12:26 PM, Thomas Auge <auge at virtues.net <mailto:auge at virtues.net>> wrote:
>
>         I figured I'd ask for an opinion before filing a bogus bug. :P
>
>
>         On 16.01.2015 15:16, Anthony Minessale wrote:
>         > Its also a bug to send bugs to the mailing list instead ofhttp://jira.freeswitch.org
>         >
>         >
>         > On Fri, Jan 16, 2015 at 12:12 PM, Thomas Auge <auge at virtues.net <mailto:auge at virtues.net> <mailto:auge at virtues.net <mailto:auge at virtues.net>>> wrote:
>         >
>         >     Hello list,
>         >
>         >     I noticed that in an opus call where the a-leg sends usedtx=0, it is properly forwarded to the b-leg, which in this case
>         >     also correctly responds with usedtx=0. However, the local SDP for the a-leg then does not have usedtx in the fmtp at
>         >     all, and it seems to be enabled.
>         >
>         >     My C skills are limited, but could this be a bug:
>         >
>         >     static opus_codec_settings_t default_codec_settings = {
>         >     ....
>         >           /*.usedtx */ 1,
>         >     ....
>         >     };
>         >
>         >     By default, usedtx is enabled, correct?
>         >
>         >     However, in
>         >
>         >     static char *gen_fmtp(opus_codec_settings_t *settings, switch_memory_pool_t *pool)
>         >
>         >     there's this:
>         >
>         >     if (settings->usedtx) {
>         >           snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "usedtx=1; ");
>         >     }
>         >
>         >
>         >     Am I interpreting this correctly that if usedtx is zero, it is omitted in the fmtp line, but then enabled, because
>         >     that's the default setting?
>         >
>         >     Problem is that Chrome can't handle DTX and generates comfort noise every time it kicks in.
>         >
>         >     Cheers!
>         >
>         >     Thomas
>         >
>         >     P.S.: If my interpretation is correct, it'll also affect useinbandfec.
>         >
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