Posts by conoral11

Quote from AllanK

Ok

Thanks awiouy for this awesome addon.

I've sorted this out, I'm leaving my solution for reference BUT also a request first (based on the solution to make it easier for others)

Here's the feature request first

1. Please allow selecting of player option .. (e.g. choose between ALSA and pulse , and probably pipewire at some point)
I needed to edit service snapclient.service to replace the term snapclient with "snapclient --player pulse"

Then when a particular player has been selected, list soundcards according to the player. (see step 3 of my solution)

Here's the solution ..

The problem - plugins not able to play audio if snapclient had been playing music.. (even if stopped at the time)

Summary - move to pulse as audio "backend"/abstraction layer to prevent locking of the audio device..

(My experience with Pulse is usually disable it as much as possible as I do professional mixing and mastering, but here, it's really come in handy).

Configs

1. autostart.sh to ensure the correct sinks are available and some other settings (to allow ac3 passthrough to my receiver)

Bash

#!/bin/sh

pactl load-module module-null-sink sink_name="just_a_sink_1"

pactl suspend-sink just_a_sink_1

pactl load-module module-allow-passthrough

pactl load-module module-udev-detect

pactl set-card-profile 0 output:hdmi-stereo

pactl set-sink-formats 2 "pcm; ac3-iec61937; dts-iec61937; eac3-iec61937"

pactl set-default-sink alsa_output.pci-0000_00_01.1.hdmi-stereo

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Pretty sure lines 1 and 2 are redundant - but anyway.. it's working
As for the last line, as I don't use the "default" device in my config, so that is probably also not needed.

2. Edit

/storage/.kodi/addons/service.snapclient/bin/snapclient.start

Change the invocation of snapclient to include --player pulse

Code

HOME="$ADDON_HOME" \

nice -n "$sc_n" \

snapclient \

$sc_H \

--latency "$sc_l" \

$HOST \

--port "$sc_p" \

$sc_S \

> /dev/null

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To

Code

HOME="$ADDON_HOME" \

nice -n "$sc_n" \

snapclient --player pulse \
$sc_H \

--latency "$sc_l" \

$HOST \

--port "$sc_p" \

$sc_S \

> /dev/null

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3. Identify correct output (as the GUI still only displays ALSA outputs)

LivingRoom:~/.kodi/addons/service.snapclient/bin # snapclient --player pulse --list

4: default

Let PulseAudio server choose the device

1: just_a_sink_1

Null Output

2: alsa_output.pci-0000_00_01.1.hdmi-stereo

Built-in Audio Digital Stereo (HDMI)

3: alsa_output.pci-0000_00_14.2.iec958-stereo

Built-in Audio Digital Stereo (IEC958)

In this case my choice is 2, which is in the first line of the config file

/storage/.kodi/userdata/addon_data/service.snapclient/settings.xml

Code

<settings version="2">
    <setting id="sc_s">2</setting>
    <setting id="sc_addr">snapbuntu</setting>
    <setting id="sc_p">1704</setting>
    <setting id="sc_h">livingroom</setting>
    <setting id="sc_n">2</setting>
    <setting id="sc_l">640</setting>
    <setting id="sc_k">true</setting>
    <setting id="sc_a">true</setting>
    <setting id="sc_r">2</setting>
</settings>

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4. Make sure that Kodi is also using the same Pulse Audio device.. I did this via the GUI.. but this is from the guisettings.xml

Code

<setting id="audiooutput.audiodevice">PULSE:alsa_output.pci-0000_00_01.1.hdmi-stereo</setting>

I was able to switch between

Movie played by Kodi (AC3 passthrough)
Music played by Kodi (PCM stereo)
Video played by the youtube addon (PCM stereo)

My snapserver (fed by Mopidy) was sending music the whole time and it was being played out to the speakers via my receiver connected via HDMI.

Everything played nicely for everything and the music popped up in between ..

Looking forward to the summer BBQ season.. and if the kids decide to watch a movie when the evening hits, they can do that and all the other speakers in the house will keep playing to the party.

For reference sake - the is on the generic amd64 build

The CPU I tested with is
AMD A10-7860K Radeon R7, 12 Compute Cores 4C+8G

I have the 2 core version and will test this configuration on that too (although not using HDMI for audio, but spdif, and to a 2.1 system)

Hopefully later I'll also be able to test against an unoficial Rockchip build (ordered for another entertaining area), a device I'll be running headless, so that should be interesting..

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These instructions worked on my RPi3B+ too.

I had been having issues where if the system was not shut down nicely, i.e the power was cut then the audio didn't recover.

Using your autostart.sh fixed all this.

Thank you.

Hi there,

I'm having a bit of trouble getting snapserver to run correctly on a fresh install of LibreElec 9.2.6.

I'm trying to stream kodi audio via snapserver.

What I have done:

Fresh Install of LibreElec 9.2.6 on Raspberrypi 3

Installed snapserver from libreelec services repo

Changed configuration from Airplay to Kodi

Rebooted

Selected "PULSE: Default, Bluetooth Audio (PULSEAUDIO)", I was expecting to see /tmp/snapfifo however only the PI audio options or this single PULSEAUDIO option are available.

Rebooted

I hear the KODI start up sound on my clients, then nothing. When I play an audio file (MP3/FLAC) the music player never moves of 0:00.

Have I missed anything obvious?

Best Wishes

conoral11

Thank you very much!

Having compiled mpd with

-Dfifo=true \

Resolved my issue.

Thank you all for your help

mglae

That confirms my behaviour.

And thank you for posting the link to the github where the compile options are. I'll see if I can compile a custom version for myself.

Thank you!

Da Flex

Thank you for your reply.

Thats a shame, as my use case would like to use snapcast.

Here is what I've wanted to setup:

* LibreELEC connected to home cinema system, works as a stand alone appliance. (Done)

* Also on LibreELEC is SnapServer and SnapClient. (Done)

* When nothing is playing on kodi, stream the snapclient to the home cinema (Done)

* When a user uses kodi to play something, don't interrupt the multi room audio (Done)

* Control MPD independantly from Kodi (Done, using Rompr)

* Have MPD as the Multi Room Audio Source, piped into snapserver (Unable)

Is this worth posting on the github as an issue, or is my use case to niche?

Thank you

Da Flex ,

Thank you for your reply.

The binding address exception isn't causing me any issues, its the final line:

Nov 09 16:57 : exception: nested: No such audio output plugin: fifo

That is giving me a headache.

If i change this to the default configuration output, which is null, then it all works.

I'm not sure how to tell what mpd was compiled with in LibreELEC to double check it has the fifo plugin included.

Hi there,

I use MPD as my audio server for multi room audio.

I'm trying to pipe MPD into /tmp/snapfifo, however it appears as if the fifo plugin is missing from MPD in LibreELEC, as I get the following error message:

LibreELEC:~/.kodi/userdata/addon_data/service.multimedia.mpd/config # mpd mpd.conf
Nov 09 16:57 : exception: bind to '0.0.0.0:6600' failed (continuing anyway, because binding to '[::]:6600' succeeded): Failed to bind socket: Address already in use
Nov 09 16:57 : hybrid_dsd: The Hybrid DSD decoder is disabled because it was not explicitly enabled
Nov 09 16:57 : exception: Failed to configure output in line 318
Nov 09 16:57 : exception: nested: No such audio output plugin: fifo

Is there anyway to address this, other than using a docker varient?

Thank you for your help

Ah,

My error. My mpd client application still had its cache loaded from another server.

It appears to be able to control the mpd server now. I'm just trying to pipe it all through snapcast now.

I am also having this issue.

Taking a look in the following directory

LibreELEC:~/.kodi/userdata/addon_data/service.multimedia.mpd/config

Shows there is a mpd.conf file present.

My client can connect and see the music present, however it can't control the server, and running mpd from the command prompt has the same issue as the OP