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  • aura/engine
  • hermannschwaerzler/engine
  • sumpfralle/aura-engine
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.gitignore 0 → 100644
View file @ a5e5ac0e
.idea/
*.pyc
*.log
.gitlab-ci.yml 0 → 100644
View file @ a5e5ac0e
image: python:3.6
stages:
- test
before_script:
- apt-get -qq update
- apt-cache search libmariadb
- apt-get install -y python3-virtualenv virtualenv redis-server redis-tools libev4 libev-dev # mariadb-server libmariadbclient-dev
- /usr/bin/virtualenv venv
- . venv/bin/activate
- python3 -V
- pip3 install -r requirements.txt
- mkdir /etc/aura
- mkdir /var/log/aura
- cp ./configuration/engine.ini /etc/aura/
simple_guru_help:
stage: test
script:
- python3 guru.py -h
#print_connection_status:
# stage: test
# script:
# - python3 guru.py -pcs
\ No newline at end of file
AUTHORS 0 → 100644
View file @ a5e5ac0e
Gottfried Gaisbauer <gottfried.gaisbauer@servus.at>
\ No newline at end of file
Dockerfile 0 → 100644
View file @ a5e5ac0e
FROM python:3.6.9-stretch
MAINTAINER Gottfried Gaisbauer <gottfried.gaisbauer@servus.at>
RUN set -ex \
&& apt-get update -q \
&& apt-get install redis-server redis-tools libev4 libev-dev -y -q --no-install-recommends \
&& rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
# TODO:
# redis => eigener container
COPY requirements.txt /tmp/requirements.txt
RUN pip3 install -r /tmp/requirements.txt
LICENSE 0 → 100644
View file @ a5e5ac0e
/*
* engine
*
* Playout Daemon for autoradio project
*
*
* Copyright (C) 2017-2018 Gottfried Gaisbauer <gottfried.gaisbauer@servus.at>
*
* This file is part of engine.
*
* engine is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* engine is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with engine. If not, see <http://www.gnu.org/licenses/>.
*/
GNU GENERAL PUBLIC LICENSE
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How to Apply These Terms to Your New Programs
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# AURA Engine
This piece of Software is part of 'AURA - AUtomated RAdio'.
AURA Engine does:
* requesting the programme from an external Source
* switches the soundserver at the correct time to a given source for a specific show
* records what is broadcasted
* streams to an icecast server
* plays to lineout
## Installation
### Software
#### Operating System
Any linux system with ALSA, pulseaudio or Jack2 support should work. It is tested and coded on a **debian stretch**
#### Packages
On a debian machine:
```bash
sudo apt install \
git \
python3 python3-pip \
redis-server \
liquidsoap liquidsoap-plugin-icecast \
mariadb-server libmariadbclient-dev \
quelcom
```
##### Liquidsoap Plugins
###### Soundcard
How liquidsoap is using your soundcard is depending on what you are going to use:
with ALSA:
```bash
sudo apt install \
liquidsoap-plugin-alsa liquidsoap-plugin-pulseaudio
```
With pulseaudio:
```bash
sudo apt install \
liquidsoap-plugin-pulseaudio
```
with jack:
```bash
sudo apt install \
liquidsoap-plugin-jack
```
###### File Formats
Depending on what stream you are going to send, and what recordings you are going to use:
```bash
sudo apt install \
liquidsoap-plugin-aac # for aac support
liquidsoap-plugin-flac # for flac support
liquidsoap-plugin-lame liquidsoap-plugin-mad # for mp3 support
liquidsoap-plugin-opus # for opus support
liquidsoap-plugin-vorbis # for ogg support
```
###### Simple
```bash
sudo apt install \
liquidsoap-plugin-all
```
#### Python Packages
```bash
sudo pip3 install \
Flask Flask-SQLAlchemy \
mysqlclient redis json \
mutagen validators
```
#### Grab the code
```bash
git clone https://gitlab.servus.at/autoradio/engine
```
#### Set up a database
##### Command line way
```bash
mysql -u root -p
CREATE DATABASE aura_engine CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
CREATE USER 'aura'@'localhost' IDENTIFIED BY 'secure-password';
GRANT ALL PRIVILEGES ON aura_engine.* TO 'aura'@'localhost';
```
##### phpmyadmin / adminer way
Log into your phpmyadmin or adminer with correct privileges, create a database and a user for the aura engine.
#### Files and Folders
* Create the audio folder defined in your aura.ini
```bash
mkdir /var/audio
mkdir /etc/aura
cp {where you cloned the repo}/configuration/engine.ini /etc/aura/engine.ini
edit engine.ini to your needs
```
* Edit settings in aura.ini. Take your time for that.
#### aura.py
It is the server which is connected to the external programme source (e.g. aura steering and tank), to liquidsoap and is listening for redis pubsub messages. This precious little server is telling liquidsoap what to play and when.
#### Guru
The commandline tool for interacting with the server. Also provides the communication from Liquidsoap to the python (Command-)Server.
#### Liquidsoap
The heart of AURA Engine. It uses the built in mixer, to switch between different sources. It records everything and streams everything depending on your settings in aura.ini.
#### Find Help
##### Liquidsoap
Reference:
http://savonet.sourceforge.net/doc-svn/reference.html
##### Python
Reference:
https://docs.python.org/3.5/
#### Interfaces
##### From Aura Engine
_Soundserverstate_
Returns true and false values of the internal In- and Outputs
/api/v1/soundserver_state
_Trackservice_
/api/v1/trackservice/<selected_date>
/api/v1/trackservice/
##### To Aura Engine
Interfaces are needed from pv/steering to engine and from tank to engine. More informations you can find here: https://gitlab.servus.at/autoradio/meta/blob/master/api-definition.md
### Hardware
#### Soundcard
AURA Engine is tested with a ASUS Xonar DGX, a Roland Duo-Capture Ex and also on an Onboard Soundcard (HDA Intel ALC262). Both work well with jack and pulseaudio. For a good experience with ALSA, you may need better hardware.
#### Hard/Soft
When you use ALSA, you will have to play around with ALSA settings. In the folder ./modules/liquidsoap is a scipt called alsa_settings_tester.liq. You can start it with 'liquidsoap -v --debug alsa_settings_tester.liq'. Changing and playing with settings may help you to find correct ALSA settings.
#### Line In
You can configure up to **five** line ins. Your hardware should support that. When you use JACK, you will see the additional elements popping up when viewing your connections (with e.g. Patchage).
#### Recordings
You can configure up to **five** recorders. You find the settings in the main config file engine.ini. You can choose between different output formats.
#### Streams
You can configure up to **five** streams. You find the settings in the engine.ini. You can choose between different streaming formats.
### Troubleshooting
**If you cannot find correct ALSA settings**
Well, this is - at least for me - a hard one. I could not manage to find correct ALSA settings for the above mentioned soundcards. The best experience i had with the ASUS Xonar DGX, but still very problematic (especially the first couple of minutes after starting liquidsoap). Since i enabled JACK support i only use that. It is also a bit of trial and error, but works pretty much out of the box.
**If you experience 'hangs' or other artefacts on the output signal**
* reduce the quality (especially, when hangs are on the stream) or
* install the realtime kernel with
```bash
apt install linux-image-rt-amd64
reboot
```
or
* invest in better hardware
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# Makefile for Sphinx documentation
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# Sphinx build info version 1
# This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
config: 6f0a1ac7defd1538103282da7e3fa1ee
tags: 645f666f9bcd5a90fca523b33c5a78b7
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.. Aura Engine documentation master file, created by
sphinx-quickstart on Thu Mar 29 20:24:45 2018.
You can adapt this file completely to your liking, but it should at least
contain the root `toctree` directive.
Welcome to Aura Engine's documentation!
=======================================
Contents:
.. toctree::
:maxdepth: 2
Indices and tables
==================
* :ref:`genindex`
* :ref:`modindex`
* :ref:`search`
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liquidsoap.helpers package
==========================
Module contents
---------------
.. automodule:: liquidsoap.helpers
:members:
:undoc-members:
:show-inheritance:
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liquidsoap package
==================
Subpackages
-----------
.. toctree::
liquidsoap.helpers
Module contents
---------------
.. automodule:: liquidsoap
:members:
:undoc-members:
:show-inheritance:
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libraries
=========
.. toctree::
:maxdepth: 4
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padding: 0.25em 0.7em;
}
table.field-list, table.footnote {
border: none;
-moz-box-shadow: none;
-webkit-box-shadow: none;
box-shadow: none;
}
table.footnote {
margin: 15px 0;
width: 100%;
border: 1px solid #EEE;
background: #FDFDFD;
font-size: 0.9em;
}
table.footnote + table.footnote {
margin-top: -15px;
border-top: none;
}
table.field-list th {
padding: 0 0.8em 0 0;
}
table.field-list td {
padding: 0;
}
table.field-list p {
margin-bottom: 0.8em;
}
table.footnote td.label {
width: .1px;
padding: 0.3em 0 0.3em 0.5em;
}
table.footnote td {
padding: 0.3em 0.5em;
}
dl {
margin: 0;
padding: 0;
}
dl dd {
margin-left: 30px;
}
blockquote {
margin: 0 0 0 30px;
padding: 0;
}
ul, ol {
/* Matches the 30px from the narrow-screen "li > ul" selector below */
margin: 10px 0 10px 30px;
padding: 0;
}
pre {
background: #EEE;
padding: 7px 30px;
margin: 15px 0px;
line-height: 1.3em;
}
dl pre, blockquote pre, li pre {
margin-left: 0;
padding-left: 30px;
}
dl dl pre {
margin-left: -90px;
padding-left: 90px;
}
tt, code {
background-color: #ecf0f3;
color: #222;
/* padding: 1px 2px; */
}
tt.xref, code.xref, a tt {
background-color: #FBFBFB;
border-bottom: 1px solid white;
}
a.reference {
text-decoration: none;
border-bottom: 1px dotted #004B6B;
}
/* Don't put an underline on images */
a.image-reference, a.image-reference:hover {
border-bottom: none;
}
a.reference:hover {
border-bottom: 1px solid #6D4100;
}
a.footnote-reference {
text-decoration: none;
font-size: 0.7em;
vertical-align: top;
border-bottom: 1px dotted #004B6B;
}
a.footnote-reference:hover {
border-bottom: 1px solid #6D4100;
}
a:hover tt, a:hover code {
background: #EEE;
}
@media screen and (max-width: 870px) {
div.sphinxsidebar {
display: none;
}
div.document {
width: 100%;
}
div.documentwrapper {
margin-left: 0;
margin-top: 0;
margin-right: 0;
margin-bottom: 0;
}
div.bodywrapper {
margin-top: 0;
margin-right: 0;
margin-bottom: 0;
margin-left: 0;
}
ul {
margin-left: 0;
}
li > ul {
/* Matches the 30px from the "ul, ol" selector above */
margin-left: 30px;
}
.document {
width: auto;
}
.footer {
width: auto;
}
.bodywrapper {
margin: 0;
}
.footer {
width: auto;
}
.github {
display: none;
}
}
@media screen and (max-width: 875px) {
body {
margin: 0;
padding: 20px 30px;
}
div.documentwrapper {
float: none;
background: white;
}
div.sphinxsidebar {
display: block;
float: none;
width: 102.5%;
margin: 50px -30px -20px -30px;
padding: 10px 20px;
background: #333;
color: #FFF;
}
div.sphinxsidebar h3, div.sphinxsidebar h4, div.sphinxsidebar p,
div.sphinxsidebar h3 a {
color: white;
}
div.sphinxsidebar a {
color: #AAA;
}
div.sphinxsidebar p.logo {
display: none;
}
div.document {
width: 100%;
margin: 0;
}
div.footer {
display: none;
}
div.bodywrapper {
margin: 0;
}
div.body {
min-height: 0;
padding: 0;
}
.rtd_doc_footer {
display: none;
}
.document {
width: auto;
}
.footer {
width: auto;
}
.footer {
width: auto;
}
.github {
display: none;
}
}
/* misc. */
.revsys-inline {
display: none!important;
}
/* Make nested-list/multi-paragraph items look better in Releases changelog
* pages. Without this, docutils' magical list fuckery causes inconsistent
* formatting between different release sub-lists.
*/
div#changelog > div.section > ul > li > p:only-child {
margin-bottom: 0;
}
/* Hide fugly table cell borders in ..bibliography:: directive output */
table.docutils.citation, table.docutils.citation td, table.docutils.citation th {
border: none;
/* Below needed in some edge cases; if not applied, bottom shadows appear */
-moz-box-shadow: none;
-webkit-box-shadow: none;
box-shadow: none;
}
\ No newline at end of file
apidoc/build/html/_static/basic.css 0 → 100644
View file @ a5e5ac0e
/*
* basic.css
* ~~~~~~~~~
*
* Sphinx stylesheet -- basic theme.
*
* :copyright: Copyright 2007-2016 by the Sphinx team, see AUTHORS.
* :license: BSD, see LICENSE for details.
*
*/
/* -- main layout ----------------------------------------------------------- */
div.clearer {
clear: both;
}
/* -- relbar ---------------------------------------------------------------- */
div.related {
width: 100%;
font-size: 90%;
}
div.related h3 {
display: none;
}
div.related ul {
margin: 0;
padding: 0 0 0 10px;
list-style: none;
}
div.related li {
display: inline;
}
div.related li.right {
float: right;
margin-right: 5px;
}
/* -- sidebar --------------------------------------------------------------- */
div.sphinxsidebarwrapper {
padding: 10px 5px 0 10px;
}
div.sphinxsidebar {
float: left;
width: 230px;
margin-left: -100%;
font-size: 90%;
word-wrap: break-word;
overflow-wrap : break-word;
}
div.sphinxsidebar ul {
list-style: none;
}
div.sphinxsidebar ul ul,
div.sphinxsidebar ul.want-points {
margin-left: 20px;
list-style: square;
}
div.sphinxsidebar ul ul {
margin-top: 0;
margin-bottom: 0;
}
div.sphinxsidebar form {
margin-top: 10px;
}
div.sphinxsidebar input {
border: 1px solid #98dbcc;
font-family: sans-serif;
font-size: 1em;
}
div.sphinxsidebar #searchbox input[type="text"] {
width: 170px;
}
img {
border: 0;
max-width: 100%;
}
/* -- search page ----------------------------------------------------------- */
ul.search {
margin: 10px 0 0 20px;
padding: 0;
}
ul.search li {
padding: 5px 0 5px 20px;
background-image: url(file.png);
background-repeat: no-repeat;
background-position: 0 7px;
}
ul.search li a {
font-weight: bold;
}
ul.search li div.context {
color: #888;
margin: 2px 0 0 30px;
text-align: left;
}
ul.keywordmatches li.goodmatch a {
font-weight: bold;
}
/* -- index page ------------------------------------------------------------ */
table.contentstable {
width: 90%;
}
table.contentstable p.biglink {
line-height: 150%;
}
a.biglink {
font-size: 1.3em;
}
span.linkdescr {
font-style: italic;
padding-top: 5px;
font-size: 90%;
}
/* -- general index --------------------------------------------------------- */
table.indextable {
width: 100%;
}
table.indextable td {
text-align: left;
vertical-align: top;
}
table.indextable dl, table.indextable dd {
margin-top: 0;
margin-bottom: 0;
}
table.indextable tr.pcap {
height: 10px;
}
table.indextable tr.cap {
margin-top: 10px;
background-color: #f2f2f2;
}
img.toggler {
margin-right: 3px;
margin-top: 3px;
cursor: pointer;
}
div.modindex-jumpbox {
border-top: 1px solid #ddd;
border-bottom: 1px solid #ddd;
margin: 1em 0 1em 0;
padding: 0.4em;
}
div.genindex-jumpbox {
border-top: 1px solid #ddd;
border-bottom: 1px solid #ddd;
margin: 1em 0 1em 0;
padding: 0.4em;
}
/* -- general body styles --------------------------------------------------- */
div.body p, div.body dd, div.body li, div.body blockquote {
-moz-hyphens: auto;
-ms-hyphens: auto;
-webkit-hyphens: auto;
hyphens: auto;
}
a.headerlink {
visibility: hidden;
}
h1:hover > a.headerlink,
h2:hover > a.headerlink,
h3:hover > a.headerlink,
h4:hover > a.headerlink,
h5:hover > a.headerlink,
h6:hover > a.headerlink,
dt:hover > a.headerlink,
caption:hover > a.headerlink,
p.caption:hover > a.headerlink,
div.code-block-caption:hover > a.headerlink {
visibility: visible;
}
div.body p.caption {
text-align: inherit;
}
div.body td {
text-align: left;
}
.field-list ul {
padding-left: 1em;
}
.first {
margin-top: 0 !important;
}
p.rubric {
margin-top: 30px;
font-weight: bold;
}
img.align-left, .figure.align-left, object.align-left {
clear: left;
float: left;
margin-right: 1em;
}
img.align-right, .figure.align-right, object.align-right {
clear: right;
float: right;
margin-left: 1em;
}
img.align-center, .figure.align-center, object.align-center {
display: block;
margin-left: auto;
margin-right: auto;
}
.align-left {
text-align: left;
}
.align-center {
text-align: center;
}
.align-right {
text-align: right;
}
/* -- sidebars -------------------------------------------------------------- */
div.sidebar {
margin: 0 0 0.5em 1em;
border: 1px solid #ddb;
padding: 7px 7px 0 7px;
background-color: #ffe;
width: 40%;
float: right;
}
p.sidebar-title {
font-weight: bold;
}
/* -- topics ---------------------------------------------------------------- */
div.topic {
border: 1px solid #ccc;
padding: 7px 7px 0 7px;
margin: 10px 0 10px 0;
}
p.topic-title {
font-size: 1.1em;
font-weight: bold;
margin-top: 10px;
}
/* -- admonitions ----------------------------------------------------------- */
div.admonition {
margin-top: 10px;
margin-bottom: 10px;
padding: 7px;
}
div.admonition dt {
font-weight: bold;
}
div.admonition dl {
margin-bottom: 0;
}
p.admonition-title {
margin: 0px 10px 5px 0px;
font-weight: bold;
}
div.body p.centered {
text-align: center;
margin-top: 25px;
}
/* -- tables ---------------------------------------------------------------- */
table.docutils {
border: 0;
border-collapse: collapse;
}
table caption span.caption-number {
font-style: italic;
}
table caption span.caption-text {
}
table.docutils td, table.docutils th {
padding: 1px 8px 1px 5px;
border-top: 0;
border-left: 0;
border-right: 0;
border-bottom: 1px solid #aaa;
}
table.field-list td, table.field-list th {
border: 0 !important;
}
table.footnote td, table.footnote th {
border: 0 !important;
}
th {
text-align: left;
padding-right: 5px;
}
table.citation {
border-left: solid 1px gray;
margin-left: 1px;
}
table.citation td {
border-bottom: none;
}
/* -- figures --------------------------------------------------------------- */
div.figure {
margin: 0.5em;
padding: 0.5em;
}
div.figure p.caption {
padding: 0.3em;
}
div.figure p.caption span.caption-number {
font-style: italic;
}
div.figure p.caption span.caption-text {
}
/* -- other body styles ----------------------------------------------------- */
ol.arabic {
list-style: decimal;
}
ol.loweralpha {
list-style: lower-alpha;
}
ol.upperalpha {
list-style: upper-alpha;
}
ol.lowerroman {
list-style: lower-roman;
}
ol.upperroman {
list-style: upper-roman;
}
dl {
margin-bottom: 15px;
}
dd p {
margin-top: 0px;
}
dd ul, dd table {
margin-bottom: 10px;
}
dd {
margin-top: 3px;
margin-bottom: 10px;
margin-left: 30px;
}
dt:target, .highlighted {
background-color: #fbe54e;
}
dl.glossary dt {
font-weight: bold;
font-size: 1.1em;
}
.field-list ul {
margin: 0;
padding-left: 1em;
}
.field-list p {
margin: 0;
}
.optional {
font-size: 1.3em;
}
.sig-paren {
font-size: larger;
}
.versionmodified {
font-style: italic;
}
.system-message {
background-color: #fda;
padding: 5px;
border: 3px solid red;
}
.footnote:target {
background-color: #ffa;
}
.line-block {
display: block;
margin-top: 1em;
margin-bottom: 1em;
}
.line-block .line-block {
margin-top: 0;
margin-bottom: 0;
margin-left: 1.5em;
}
.guilabel, .menuselection {
font-family: sans-serif;
}
.accelerator {
text-decoration: underline;
}
.classifier {
font-style: oblique;
}
abbr, acronym {
border-bottom: dotted 1px;
cursor: help;
}
/* -- code displays --------------------------------------------------------- */
pre {
overflow: auto;
overflow-y: hidden; /* fixes display issues on Chrome browsers */
}
span.pre {
-moz-hyphens: none;
-ms-hyphens: none;
-webkit-hyphens: none;
hyphens: none;
}
td.linenos pre {
padding: 5px 0px;
border: 0;
background-color: transparent;
color: #aaa;
}
table.highlighttable {
margin-left: 0.5em;
}
table.highlighttable td {
padding: 0 0.5em 0 0.5em;
}
div.code-block-caption {
padding: 2px 5px;
font-size: small;
}
div.code-block-caption code {
background-color: transparent;
}
div.code-block-caption + div > div.highlight > pre {
margin-top: 0;
}
div.code-block-caption span.caption-number {
padding: 0.1em 0.3em;
font-style: italic;
}
div.code-block-caption span.caption-text {
}
div.literal-block-wrapper {
padding: 1em 1em 0;
}
div.literal-block-wrapper div.highlight {
margin: 0;
}
code.descname {
background-color: transparent;
font-weight: bold;
font-size: 1.2em;
}
code.descclassname {
background-color: transparent;
}
code.xref, a code {
background-color: transparent;
font-weight: bold;
}
h1 code, h2 code, h3 code, h4 code, h5 code, h6 code {
background-color: transparent;
}
.viewcode-link {
float: right;
}
.viewcode-back {
float: right;
font-family: sans-serif;
}
div.viewcode-block:target {
margin: -1px -10px;
padding: 0 10px;
}
/* -- math display ---------------------------------------------------------- */
img.math {
vertical-align: middle;
}
div.body div.math p {
text-align: center;
}
span.eqno {
float: right;
}
/* -- printout stylesheet --------------------------------------------------- */
@media print {
div.document,
div.documentwrapper,
div.bodywrapper {
margin: 0 !important;
width: 100%;
}
div.sphinxsidebar,
div.related,
div.footer,
#top-link {
display: none;
}
}
\ No newline at end of file