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A demonstrator for GENIVI's Audio Manager
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README.md

AM Monitor (GENIVI Audio Manager Monitor)

Authors: JoonCheol Park jooncheol.park@windriver.com, Daewon Park daewon.park@windriver.com


Introduction

The AM Monitor shows to working flow of the AM. In this demo, we use the AM with 2 Plugins for PulseAudio and Audio Policy Control. When we play the audio in this app, we can see the internal status of connections in AM and status of the PulseAudio.


Dependencies

  • Audio Manager (branch Intreprid_stable_branch, Version 6.1)
  • PulseAudio
  • DBus
  • Qt5
  • Python
  • sqlite3

Build Instruction for Ubuntu 14.04 PC

Build Audio Manager + 2 patches

$ git clone git://git.projects.genivi.org/AudioManager.git
$ curl "http://git.projects.genivi.org/?p=meta-genivi-demo.git;a=blob_plain;f=recipes-multimedia/audiomanager/audiomanager/0001-Porting-Pulse-Routing-Interface-from-AM-v1.x-to-AM-v.patch;h=7d6ebbf710d0a0d46d99797f5ef6dd3712a888fe;hb=HEAD" > 0001-Porting-Pulse-Routing-Interface-from-AM-v1.x-to-AM-v.patch
$ curl "http://git.projects.genivi.org/?p=meta-genivi-demo.git;a=blob_plain;f=recipes-multimedia/audiomanager/audiomanager/0001-Porting-Pulse-Control-Interface-from-AM-v1.x-to-AM-v.patch;h=9a61d3c83cc5954bca1a0c644b3aec4aa94e8f5d;hb=HEAD" > 0001-Porting-Pulse-Control-Interface-from-AM-v1.x-to-AM-v.patch
$ cd AudioManager
$ git checkout 6e700bfc7faecb6d7e0f31c9d08b8b4f6cd1b3dd
$ patch -p1 < ../0001-Porting-Pulse-Routing-Interface-from-AM-v1.x-to-AM-v.patch
$ patch -p1 < ../0001-Porting-Pulse-Control-Interface-from-AM-v1.x-to-AM-v.patch
$ mkdir build
$ cd build
$ cmake -DWITH_PULSE_ROUTING_PLUGIN=ON -DWITH_PULSE_CONTROL_PLUGIN=ON -DWITH_ENABLED_IPC=DBUS -DWITH_DATABASE_STORAGE=OFF -DWITH_DLT=OFF -DCMAKE_INSTALL_PREFIX=(PREFIX on your dev environment) ..
$ make
$ make install

Build AM Monitor

$ git clone git://git.projects.genivi.org/AudioManagerDemo.git
$ qmake
   or
$ qmake INCLUDEPATH=(PREFIX-OF-AM)/include
$ make

If you have a trouble with the compile due to not enough memory (e.g. build on VMWare), You can comment out the line "RESOURCES += qml.qrc" from AudioManager.pro. The executable binary won't have big resouce files in it.

$ vi AudioManagerMonitor.pro # comment out line "RESOURCES += qml.qrc"
$ qmake && make
$ ./AudioManagerMonitor --debug # run with --debug to load resources directly from filesystem.

Or you can add swap file temporarily for enough memory space for build on VM.

$ dd if=/dev/zero of=/swapfile bs=1K count=2000000 # 2G, you can try more
$ mkswap /swapfile
$ swapon /swapfile
$ # if you want to use this for next boot, add "/swapfile none swap sw 0 0" in /etc/fstab and reboot

Running AM Monitor on Ubuntu 14.04 PC

  1. Set testing environment

    $ . pc-env

This script creates 2 virtual sink device for PulseAudio Daemon. You can check with "pacmd list-sinks". If you want to remove created sink device, execute 'deactivate' on the shell

  1. Execute AM

    $ AudioManager -V -c(PREFIX-OF-AM)/lib/audioManager/control/libPluginControlInterface.so -l(PREFIX-OF-AM)/lib/audioManager/command/ -r(PREFIX-OF-AM)/lib/audioManager/routing/

  2. Execute AM Monitor

    $ ./AudioManagerMonitor --debug

If you don't use any argument, AM Monitor will be running as fullscreen mode. Please refer the usage with "--help" option.


Audio Policy Rule Configuration example

  • Preset of AM Sources and Sinks (PREFIX-OF-AM)/lib/audiomanager/routing/libPluginRoutingInterfacePULSE.conf It defines 5 preset of AM Sources - Entertainment, Navigation, TTS ...
  • Policy Rule (PREFIX-OF-AM)/lib/audiomanager/control/libPluginControlInterface.conf It defines audio policy scenario. E.g - When play the NAVI sound alert during Media playing, Sink Volume of previous Media goes down to 50%.

To do items

  • AM Monitor

  • Use CommonAPI for command interface in AM Monitor App

  • AM Plugins

  • Enhance the Routing Plugin for PulseAudio

    • Implement missing code for all Routing Plugin APIs
    • Enhance the configuration syntax
  • Enhance the Conrol Plugin for Audio Policy

    • More flexible and programmable audio policy configuration using JavaScript
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