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Efficient transport of video in the home of tomorrow

De Vogeleer, Louis
(2021)

Files

DeVogeleer_71501600_2021.pdf
  • UCLouvain restricted access
  • Adobe PDF
  • 4.76 MB

Details

Supervisors
Macq, Benoît ; Legat, Jean-Didier
Faculty
Ecole polytechnique de Louvain
Degree label
Master [120] : ingénieur civil en informatique, à finalité spécialisée
Abstract
Today, each video sources and screens of house are connected with short and expensive HDMI cables. However each of these source can only be connected to one screen. Ideally, any screen in the house should be able to display any source without running wires all over the house. Professional A/V infrastructures are nowadays moving to IP, allowing to only plug video sources and screens to the network and let IP-based applications make the connections. The Advanced Media Workflow Association (AMWA) has brought it support to such applications by developing the Networked Media Open Specifications (NMOS) allowing to discover senders and receivers in the network and manage the connections between them. These specifications are supported by a lot of manufacturers interested in making interoperable implementations. The problem is that a home network doesn't have the same bandwidth capacities than professional networks and video streams should thus be compressed. intoPIX recently developed the JPEG-XS compression algorithm with low complexity and low latency. They where also interested in going further on the study of video transport over IP and where at the initiative of this project. This thesis where focused on gathering information about NMOS to design a video transport core using intoPIX's JPEG-XS codec and compliant to the specifications. Implementation of some NMOS specifications where already developed. The implementation of the project was therefore based on one of these and added the compliance to the AMWA IS-06 Network Control specification, controlling if connections can be made based on the network occupancy. Additional mechanisms where also added to find the best compression rate for each single video stream to optimise the available bandwidth in the network. Finally, all added functionalities where demonstrated in an emulated home network hosting a sender and multiple receivers.