Auto rtp depayloader and decoder

[Andrea Lo Pumo]

I receive a rtp stream and the codec might vary, for example, G711, G722, G726, ...

I would like a "rtpdecodebin", to do something like:

udpsrc port=1234 caps="application/x-rtp" ! rtpptdemux ! rtpdecodebin ! audioconvert ! autoaudiosink

I can listen to the"request-pt-map" signal and tell rtpptdemux the exact format of the payload.

What can I do?

Thank you in advance.

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[Sebastian Dröge-3]

On Fri, 2019-01-18 at 11:35 +0100, Andrea Lo Pumo wrote:

> I receive a rtp stream and the codec might vary, for example, G711,
> G722, G726, ...
>
> I would like a "rtpdecodebin", to do something like:
>
> udpsrc port=1234 caps="application/x-rtp" ! rtpptdemux ! rtpdecodebin
> ! audioconvert ! autoaudiosink
>
> I can listen to the"request-pt-map" signal and tell rtpptdemux the
> exact format of the payload.
>
> What can I do?

decodebin can do exactly that already. You only have to provide it with
complete caps for the incoming RTP stream and it will select
depayloaders, parsers and decoders as needed.

--
Sebastian Dröge, Centricular Ltd · https://www.centricular.com


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[Andrea Lo Pumo]

Perfect! It works:

gst-launch-1.0 audiotestsrc ! mulawenc !  rtppcmupay ! udpsink port=1234
gst-launch-1.0 udpsrc port=1234 caps="application/x-rtp, media=(string)audio, clock-rate=(int)8000, encoding-name=(string)PCMU" ! decodebin ! audioconvert ! autoaudiosink

I didn't imagine decodebin could handle application/x-rtp :)

Il giorno ven 18 gen 2019 alle ore 14:41 Sebastian Dröge <[hidden email]> ha scritto:

On Fri, 2019-01-18 at 11:35 +0100, Andrea Lo Pumo wrote:
> I receive a rtp stream and the codec might vary, for example, G711,
> G722, G726, ...
>
> I would like a "rtpdecodebin", to do something like:
>
> udpsrc port=1234 caps="application/x-rtp" ! rtpptdemux ! rtpdecodebin
> ! audioconvert ! autoaudiosink
>
> I can listen to the"request-pt-map" signal and tell rtpptdemux the
> exact format of the payload.
>
> What can I do?

decodebin can do exactly that already. You only have to provide it with
complete caps for the incoming RTP stream and it will select
depayloaders, parsers and decoders as needed.

--
Sebastian Dröge, Centricular Ltd · https://www.centricular.com

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