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Open AVB

maintainer: eric.mann AT intel.com

Intel created the Open AVB repository to encourage collaborative source code development for AVB 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. The repository contains primarily network building block components - drivers, libraries, example applications and daemon source code - required to build an AVB 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 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 AVB 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, see also the AVnu Alliance webpage at www.avnu.org.

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.

Prior to accepting a commit, Intel may perform scans using third-party tools to identify suspected hits of GPL code. Intel may also perform vulnerability scans of patches in an attempt to find various coding errors such as memory leaks, buffer overflows and usage of uninitialized variables. The submitter will be asked to correct any detected issues prior to a commit. Owners of submitted third-party content are free to apply changes without supervision by Intel.

The Open AVB project has a development mailing list. To subscribe, visit https://lists.sourceforge.net/lists/listinfo/open-avb-devel to sign up.

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-related devices based on their standardized management properties.

XMOS

XMOS is a semiconductor company providing a reference design for AVB endpoints in pro audio and automotive. Our source code is open source and available on Github - https://github.com/xcore/sw_avb