Hi,
can you tell us what pipeline you tried to set up ?
Where does the rtp dtmf comes from ?
The call back function does not receive event from bus ...
The rtpdtmfdepay plugins gets on its sink pad rtp packets, process them
to extract dtmf number and volume, post a message with those dtmf
informations on bus and output a sound buffer on its src pad.
If rtp dtmf events are mixed with other rtp streams (pcma voice for
instance), you have to demux your udp stream towards different rtp
depayloader. The rtpdtmfdepay for dtmf payload type, rtppcmadepay for
pcma payload type.
The first thing to do when working with RTP is to use gstrtpbin.
It will demux the udp stream according to the payload map you provide.
Aurelien
Le 27/09/2010 09:34, Parveen Kumar Jain a écrit :
Hi Oliver/Anyone,
Can you please provide me any sample application or "pipeline
example" for using "rtpdtmfdepay".I was trying to create a pipeline
using "udpsrc" and then linked it to "rtpdtmfdepay".But somehow it is
not working.The call back function is not able to receive any event
from given Bus.
Can anyone provide any clue what wrong with this ?
Regards,
Parveen Jain
2010/9/8 Olivier Crête
<[hidden email]>
On Wed, 2010-09-08 at 00:08 -0700, newbie wrote:
> This is my first post in this mailing list. i have already
searched the
> archive to find out the answer of my question. But i did not find
it.
> I need to know that can we use GStreamer to receive DTMF from
peer. i have
> seen the plug ins to send DTMF to peer but not able to find the
plug ins to
> receive DTMF.
> If this is possible to receive DTMF using GStreamer then please
share the
> solution for the same.
DTMF can arrive in two forms, sound or RTP events. You can receive RTP
events with "rtpdtmfdepay". There is also "dtmfdetect" which will try to
detect DTMF in the incoming sound (your mileage may vary).
--
Olivier Crête
[hidden email]
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