Re: [Linphone-users] Packet Size Control

[Dragos D]

I think it should be overwritten.
But you should also be able to use:
send_fmtp=ptime=200 for example in the speex section(s) in .linphonerc.
Dragos

2011/12/13 Mike Dawson <address@hidden>:
> Excellent - will try compiling that.  Does this mean that the ptime
> parameter to the codec from .linphonerc will not be actioned?  I tested with
> setting ptime to 250ms on speex send_fmtp but need to test a few other
> combos to be sure.  Perhaps 250ms was invalid.
>
> Thanks,
>
> -Mike
>
>
> On Wed, Dec 14, 2011 at 1:40 AM, Dragos D <address@hidden> wrote:
>>
>> In audiostream.c
>> after
>>        if (pt->send_fmtp!=NULL)
>> ms_filter_call_method(stream->encoder,MS_FILTER_ADD_FMTP,
>> (void*)pt->send_fmtp);
>>        if (pt->recv_fmtp!=NULL)
>>
>> ms_filter_call_method(stream->decoder,MS_FILTER_ADD_FMTP,(void*)pt->recv_fmtp);
>>
>> You add:
>>
>>  ms_filter_call_method(stream->encoder,MS_FILTER_ADD_ATTR,(void*)"ptime:60");
>> //dd
>>
>> You can use 60 or 80, 100...
>>
>> Dragos
>>
>> On Tue, Dec 13, 2011 at 4:25 PM, Dragos D <address@hidden> wrote:
>> > Yes, it is about ptime and I am looking into the code now... :-)
>> >
>> > 2011/12/13 Mike Dawson <address@hidden>:
>> >> Dear Dragos,
>> >>
>> >> Does this relate to the ptime parameter?  Is there somewhere specific
>> >> to
>> >> start looking in the code for this?
>> >>
>> >>
>> >> http://lists.gnu.org/archive/html/linphone-developers/2010-09/msg00032.html
>> >>
>> >> or more possibly even:
>> >> http://www.mail-archive.com/address@hidden/msg01231.html
>> >>
>> >>
>> >> Many Thanks,
>> >>
>> >> -Mike
>> >>
>> >> 2011/12/13 Dragos D <address@hidden>
>> >>>
>> >>> I'll have to check the code...
>> >>>
>> >>> On Dec 13, 2011 10:51 AM, "Mike Dawson" <address@hidden> wrote:
>> >>>>
>> >>>> Hi Dragos,
>> >>>>
>> >>>> Thanks for the reply there - so is there a parameter that would be
>> >>>> used
>> >>>> for that in .linphonerc - I checked over the docs
>> >>>>
>> >>>> http://www.linphone.org/eng/documentation/dev/tuning-linphone.html
>> >>>>
>> >>>> Is there something to go in the rtp section or do I have to add to
>> >>>> the
>> >>>> protocol sections?
>> >>>>
>> >>>> Many Thanks,
>> >>>>
>> >>>> -Mike
>> >>>>
>> >>>> 2011/12/13 Dragos D <address@hidden>
>> >>>>>
>> >>>>> You don't increase the frame size,  you just pack more encoded
>> >>>>> frames in
>> >>>>> rtp.
>> >>>>> Dragos
>> >>>>>
>> >>>>> On Dec 13, 2011 8:47 AM, "Mike Dawson" <address@hidden> wrote:
>> >>>>>>
>> >>>>>> Dear All,
>> >>>>>>
>> >>>>>> I have a situation that I think might be common: I want to run SIP
>> >>>>>> sessions over a VPN.  I am using mostly the speex codec.  The VPN
>> >>>>>> is
>> >>>>>> running over UDP and the issue is that with a small packet being
>> >>>>>> sent
>> >>>>>> more frequently the packet overhead is increasing bandwidth usage
>> >>>>>> 2-3x.
>> >>>>>>
>> >>>>>> So what would be helpful would be to pass a parameter to the codec
>> >>>>>> to
>> >>>>>> try and increase the frame size so that fewer larger packets go out
>> >>>>>> (and
>> >>>>>> reduce the overhead loss).
>> >>>>>>
>> >>>>>> I noticed:
>> >>>>>>
>> >>>>>>
>> >>>>>>
>> >>>>>> http://lists.gnu.org/archive/html/linphone-developers/2010-04/msg00078.html
>> >>>>>>
>> >>>>>> But not sure if that applies to audio only - looks like according
>> >>>>>> to
>> >>>>>> speex doc this should be possible:
>> >>>>>>
>> >>>>>> http://www.speex.org/docs/manual/speex-manual/node13.html
>> >>>>>>
>> >>>>>> Does anyone have any hints on where to look for module parameters
>> >>>>>> or
>> >>>>>> what to do if they don't yet exist - I guess I would have to modify
>> >>>>>> some
>> >>>>>> source.
>> >>>>>>
>> >>>>>> Many Thanks,
>> >>>>>>
>> >>>>>> -Mike
>> >>>>>>
>> >>>>>> 14:24:08.996504 IP user2-Aspire-S3.local.36666 >
>> >>>>>> static.1.2.3.4.clients.your-server.de.openvpn: UDP, length 141
>> >>>>>> 14:24:08.996647 IP6 fe80::76de:2bff:fe3d:7b08.mdns > ff02::fb.mdns:
>> >>>>>> 0
>> >>>>>> PTR (QM)? 254.255.128.10.in-addr.arpa. (45)
>> >>>>>> 14:24:08.996792 IP user2-Aspire-S3.local.36666 >
>> >>>>>> static.1.2.3.4.clients.your-server.de.openvpn: UDP, length 125
>> >>>>>> 14:24:08.996825 IP user2-Aspire-S3.local.mdns > 224.0.0.251.mdns: 0
>> >>>>>> PTR
>> >>>>>> (QM)? 254.255.128.10.in-addr.arpa. (45)
>> >>>>>> ^C14:24:09.096979 IP ASUS.local.63816 > 239.255.255.250.1900: UDP,
>> >>>>>> length 133
>> >>>>>>
>> >>>>>>
>> >>>>>> 14:24:56.316471 IP user1-Satellite-A300.local.7078 >
>> >>>>>> user2-Aspire-S3.local.7078: UDP, length 18
>> >>>>>> 14:24:56.341113 IP user2-Aspire-S3.local.7078 >
>> >>>>>> user1-Satellite-A300.local.7078: UDP, length 58
>> >>>>>> 14:24:56.345263 IP user1-Satellite-A300.local.7078 >
>> >>>>>> user2-Aspire-S3.local.7078: UDP, length 18
>> >>>>>> 14:24:56.355261 IP user1-Satellite-A300.local.7078 >
>> >>>>>> user2-Aspire-S3.local.7078: UDP, length 18
>> >>>>>> 14:24:56.362484 IP user2-Aspire-S3.local.7078 >
>> >>>>>> user1-Satellite-A300.local.7078: UDP, length 58
>> >>>>>>
>> >>>>>>
>> >>>>>>
>> >>>>>>
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