Closed GoogleCodeExporter closed 9 years ago
Original comment by samuelv0...@gmail.com
on 3 Mar 2010 at 6:04
In g729_default_attr function we should define :
attr->info.frm_ptime = 20; // I'm not sure
attr->setting.frm_per_pkt = 2; // I'm sure
Original comment by samuelv0...@gmail.com
on 4 Mar 2010 at 5:43
As far as I know, the G729 use a base frame of 10ms, and then, several frames
can
be sent in one packet. The standard is to put 2 frames in one packet, so 20ms.
See:
http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a008
0094ae2.shtml#conv
At the moment, according to the tshark trace I took on the RTP stream coming
from
Siphon, the RTP packet is 22 bytes. The header is 12, so the payload is 10
bytes,
which is 10ms.
Sending 20ms packets instead of 10ms should bring a dramatic improvement in the
bandwidth used by G729 calls.
Original comment by david.po...@gmail.com
on 4 Mar 2010 at 10:24
I uploaded a new version of Siphon
(http://code.google.com/p/siphon/downloads/list ).
This issue should be fixed, could you confirm this ?
Original comment by samuelv0...@gmail.com
on 27 Mar 2010 at 4:46
New features and bugs fixed are described here :
http://code.google.com/p/siphon/wiki/Feedback
Original comment by samuelv0...@gmail.com
on 27 Mar 2010 at 4:47
I never cross-compiled Siphon, so I must admit I am not very familiar with the
procedure and the requirements.
I'll try to check this out, but not sure when I'll have the time.
Original comment by david.po...@gmail.com
on 28 Mar 2010 at 9:28
Hello,
You don't need to compile, you just need to install the last version I
uploaded, and
try it.
And look the trace like you did it.
Original comment by samuelv0...@gmail.com
on 28 Mar 2010 at 1:57
Oops sorry, I just found out the .deb package was an iPhone package.
I installed the update, and it seems perfect.
Just to check; what I see is that you now send packets with a ptime of 20ms,
but the SDP does not announce it as
it is the default ptime.
My switch (FreeSWITCH) does not give me any warnings anymore).
Thank for the patch.
Original comment by david.po...@gmail.com
on 28 Mar 2010 at 6:02
Great!!
Original comment by samuelv0...@gmail.com
on 28 Mar 2010 at 7:09
Original issue reported on code.google.com by
david.po...@gmail.com
on 2 Mar 2010 at 8:59