[Freeswitch-users] jitter buffer during bridge call

Tue Feb 21 18:31:12 MSK 2017

Hello,

Thanks for feedback, I removed all of them and seems the same. So might be
related to the way I set the jitter buffer..

Hope Brian can clarify if I understood correctly that I should  do:

1. <action application="set" data="rtp_jitter_buffer_during_bridge=true"/>
2. And in bridge string add : {jitterbuffer_msec=1p}

Silviu

On Tue, Feb 21, 2017 at 5:18 PM, Michael Jerris <mike at jerris.com> wrote:

> every one of those set lines resets that variable so only the last one is
> doing anything.  you can set those with | seperator
>
> On Tue, Feb 21, 2017 at 10:09 AM Caragea Silviu <silviu.cpp at gmail.com>
> wrote:
>
>> Hello Brian,
>>
>> Thanks for your feedback. I don't think I have something to rewrite
>> timestamps. I also use the following (hope none of is rewriting
>> timestamps):
>>
>> <action application="set" data="rtp_manual_rtp_bugs=
>> sonus_send_invalid_timestamp_2833"/>
>> <action application="set" data="rtp_manual_rtp_bugs=
>> send_linear_timestamps"/>
>> <action application="set" data="rtp_manual_rtp_bugs=start_seq_at_zero"/>
>> <action application="set" data="rtp_manual_rtp_bugs=never_send_marker"/>
>> <action application="set" data="rtp_manual_rtp_bugs=
>> ignore_dtmf_duration"/>
>> <action application="set" data="rtp_manual_rtp_bugs=accept_any_packets"/>
>>
>> Regarding your advices:
>>
>>
>> 1. Don't use the nolocal export method, set those variables in side the
>> {} on the bridge line.
>> 2. set jitterbuffer_msec=1p
>>
>> I'm not sure is clear enough for me. Can you please past here how looks
>> this settings in the bridge line ? or where I can find an example in
>> documentation ?
>>
>> What I understand now is that I need to :
>>
>> 1. <action application="set" data="rtp_jitter_buffer_
>> during_bridge=true"/>
>> 2. And in bridge string add : {jitterbuffer_msec=1p}
>>
>> Btw what means 1p ?
>>
>> Silviu
>>
>>
>> On Tue, Feb 21, 2017 at 4:43 PM, Brian West <brian at freeswitch.org> wrote:
>>
>> 1. Don't use the nolocal export method, set those variables in side the
>> {} on the bridge line.
>> 2. set jitterbuffer_msec=1p
>> 3. The jitter buffer was ripped and rebuilt so some of the documentation
>> hasn't been updated.
>>
>> Are you rewriting timestamps or something too?
>>
>> On Tue, Feb 21, 2017 at 8:26 AM, Caragea Silviu <silviu.cpp at gmail.com>
>> wrote:
>>
>> Hello,
>>
>> I'm using last FS 1.6.15 to bridge a call and to transcode it as well
>> from ILBC/ISAC to PCMU. To enable jitter buffer during bridge I'm using:
>>
>> <action application="set" data="rtp_jitter_buffer_during_bridge=true"/>
>> <action application="export" data="nolocal:jitterbuffer_msec=60:200:20"/>
>>
>> What I observed is that looking with wireshark still shows jitter on leg
>> B which is sent to PSTN even if there is no jitter on leg A, or shows worst
>> jitter on leg B in case I have jitter on call A.
>>
>> I was expected that the jitter buffer will fix this and even if I have a
>> slightly low jitter on leg A will not be propagated on le B as well.
>>
>> I'm missing something ?
>>
>> Silviu
>>
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>
> _________________________________________________________________________
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>
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