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.. image:: avnu_logo.png
|
.. image:: https://travis-ci.org/AVnu/OpenAvnu.svg?branch=open-avb-next
:target: https://travis-ci.org/AVnu/OpenAvnu
OpenAvnu
========
The OpenAvnu project is sponsored by the Avnu Alliance.
The intent is to provide components for building AVB/TSN systems. The repository
contains primarily network building block components - drivers, libraries,
\example applications and daemon source code - required to build an AVB/TSN system.
It is planned to eventually include the various packet encapsulation types,
protocol discovery daemons, libraries to convert media clocks to AVB clocks
and vice versa), and drivers.
This repository does not include all components required to build a full
production AVB/TSN system (e.g. a turnkey solution to stream stored or live audio
or video content). Some simple example applications are provided which
illustrate the flow - but a professional Audio/Video system requires a full media stack
- including audio and video inputs and outputs, media processing elements, and
various graphical user interfaces. Various companies provide such integrated
solutions.
For more information about AVB/TSN, see also the Avnu Alliance webpage at
www.avnu.org.
BACKGROUND
===========
Intel created the OpenAvnu repository to encourage collaborative source code
development for AVB/TSN technology enabling. By publishing the source code, our
intent is to encourage standardization, stability and inter-operability between
multiple vendors. This repository - created by the Intel LAN Access Division -
is open for contributions from other vendors.
LICENSING AND CONTRIBUTION GUIDELINES
======================================
To the extent possible, content is licensed under BSD licensing terms. Linux
kernel mode components are provided under a GPLv2 license. The specific license
information is included in the various directories to eliminate confusion. We
encourage you to review the ‘LICENSE’ file included in the head of the
various subdirectories for details.
Third party submissions are welcomed. Our intent for third party content
contributions is to enable derivative products with minimal licensing
entanglements. Practically speaking, this means we would enforce (a) an
original-source attestation for any contributed content, and (b) rejecting
patches with GPL content into existing “BSD” licensed components. Third
party copyrights can be included provided they do not narrow the licensing
terms of an existing component.
The OpenAvnu project has a development mailing list. To subscribe, visit
https://lists.sourceforge.net/lists/listinfo/open-avb-devel to sign up.
WEBSITE
=======
A github based website for OpenAvnu can be found here.
+ http://avnu.github.io/OpenAvnu
GIT SUBMODULES
==============
After checking out the OpenAvnu git repository submodules should be
configured by going::
git submodule init
git submodule update
MAKE on debian
==============
``bash
sudo apt install libpci-dev libpcap-dev libsndfile-dev libjack-dev
make all
make -C lib/igb_avb all
``
CMAKE
=====
cmake is a cross-platform build system generator. cmake build files are
currently available to build mrpd in Windows and linux and CppUTest unit
tests for mrpd. The recommended usage for cmake is to create an out-of-tree
directory for cmake output of generated makefiles or MSVC project files.
Starting from the OpenAvnu dir, one would go::
mkdir tmp
cd tmp
cmake .. -G "Unix Makefiles"
make
to build in OpenAvnu/tmp
Apple Vendor PTP Profile
========================
Support for the Apple Vendor PTP Profile can be found on the
feature-aptp-experimental branch of the OpenAvnu repository.
These changes allow interaction with Apple proprietary PTP clocks. This
implementation has been tested with the Apple AirPlay SDK on a Raspberry Pi 3
running within a group of devices playing the same music stream.
RELATED OPEN SOURCE PROJECTS
============================
AVDECC
------
Jeff Koftinoff maintains a repository of AVDECC example open
source code. AVDECC is a management layer, similar to SNMP MIB formats,
which enables remote devices to detect, enumerate and configure AVB/TSN-related
devices based on their standardized management properties.
+ https://github.com/jdkoftinoff/jdksavdecc-c
AudioScience has created a 1722.1 C++ controller library which builds on jdkadvecc-c.
+ https://github.com/audioscience/avdecc-lib
XMOS
----
XMOS is a semiconductor company providing a reference design for AVB/TSN
endpoints in pro audio and automotive. XMOS endpoint source code is open source
and available on Github - https://github.com/xcore/sw_avb
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