[pulseaudio-discuss] Problem to receive RTP stream from ffmpeg

[Russell Treleaven]

Is ffplay sending sap advertisements?

On Tue, Jun 12, 2018, 11:12 AM Antoine Vacher <antoine.vacher at tigre-bleu.net>
wrote:

> Hello,
>
> Any idea? I am still not figuring out what's wrong in my setup.
>
> Thanks,
>
> Antoine
>
> ----- Mail original -----
> De: "Antoine Vacher" <antoine.vacher at tigre-bleu.net>
> À: "pulseaudio-discuss" <pulseaudio-discuss at lists.freedesktop.org>
> Envoyé: Mercredi 6 Juin 2018 20:41:10
> Objet: [pulseaudio-discuss] Problem to receive RTP stream from ffmpeg
>
> Hello,
>
> I struggle to perform my house audio setup. Let me explain:
>
> I have at home a raspberry pi with a USB microphone running under
> raspbian. Pulseaudio is not (and cannot) be installed on it. I stream the
> microphone with ffmpeg with the following command:
>
> arecord -D pcm.duplex -c2 -r 48000 -f S32_LE -t wav -V mono | avconv -i -
> -acodec libmp3lame -b 32k -f rtp rtp://225.5.5.5:1234/4
>
> The streaming works correctly as I can listen to the audio from my laptop
> with the following command:
>
> ffplay rtp://225.5.5.5:1234
>
> Now I have a home server where I have a tool that needs to use "rec" to
> work. Therefore I want to create a RTP source for the RTP stream and
> forward it to "rec" as default input.
>
> I checked with cli-visualizer script (configured for pulseaudio) and the
> following command works on the home server:
>
> ffplay rtp://225.5.5.5:1234 -nodisp
>
> Pulseaudio runs in system mode on the server, I tried to create a RTP
> source in /etc/pulse/system.pa by adding
>
> load-module module-null-sink sink_name=rtp
> load-module module-rtp-recv sink=rtp sap_address=225.5.5.5
> set-default-source rtp.monitor
>
> There is no speakers on the server so I cannot verify if sound is played,
> however if I run cli-visualizer then there is no activity so my guess is
> that RTP stream is not captured by pulseaudio.
>
> Do you see what I miss?
>
> There is a lot of tutorials to stream RTP *from* pulseaudio, but there is
> a lot less help to send a RTP stream *to* pulseaudio that is not coming
> from another pulseaudio.
>
> Thanks!
>
> Antoine
>
> --
> Antoine Vacher
> mail/jabber: antoine.vacher at tigre-bleu.net
> _______________________________________________
> pulseaudio-discuss mailing list
> pulseaudio-discuss at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss
> _______________________________________________
> pulseaudio-discuss mailing list
> pulseaudio-discuss at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20180612/789e334c/attachment.html>