shairport-sync and snapcast [Resolved]

[nwolcdas]

Hello guys, i build following Setup. I installed on 3 Raspberry PIs shairport-sync and snapcast. On one PI the snapcast Server is installed. So i would like to pipe the output on the main server to the snapcast output (/tmp/snapfifo).

For explaining: IOS Device > shairport-sync > snapcast > broadcast sound to all pi's.

Follwoing config i used for shairport-sync:

general = { name = "Flur"; output_backend = "pipe"; };

alsa = { output_device = "default"; mixer_device = "hw:0"; mixer_control_name = "PCM"; };

sessioncontrol = { allow_session_interruption = "yes"; session_timeout = 20; }

pipe = { name = "/tmp/snapfifo";
audio_backend_latency_offset = 0; audio_backend_buffer_desired_length = 44100; }

If I used the option output_backend = "pipe"; shairport told me following:

Nov 15 15:35:05 flur systemd[1]: Starting ShairportSync AirTunes receiver... Nov 15 15:35:05 flur systemd[1]: Started ShairportSync AirTunes receiver. Nov 15 15:35:05 flur shairport-sync[3467]: Invalid audio output specified! Nov 15 15:35:05 flur shairport-sync[3467]: Available audio outputs: Nov 15 15:35:05 flur shairport-sync[3467]: alsa (default) Nov 15 15:35:05 flur shairport-sync[3467]: Options for output alsa: Nov 15 15:35:05 flur shairport-sync[3467]: -d output-device set the output device [default|...] Nov 15 15:35:05 flur shairport-sync[3467]: -m mixer-device set the mixer device ['output-device'|...] Nov 15 15:35:05 flur shairport-sync[3467]: -c mixer-control set the mixer control [Master|...] Nov 15 15:35:05 flur shairport-sync[3467]: -i mixer-index set the mixer index [0|...] Nov 15 15:35:05 flur shairport-sync[3467]: *) default option

If i comment out the option, nothing happend. What is the wrong configuration? Any ideas?

[mikebrady]

Thanks for the post. Is it possible that you didn't compile pipe support? To find out, could you run the command $ shairport-sync -V and post the output string please?

[nwolcdas]

Hello Mike, this was the solution! I forgot to compile the pipe support. Now it works! thank you for your expensive time and good luck for all your projects! Best regards Nwolcdas