Title : Videotorium streaming technology study in 4K environment

Project Lead : Maciej Glowiak From : PSNC (None)

Dates : from 2014-12-03 17:30:54 to 2015-02-02 16:39:29

Description :

Motivation and objectives :
Videotorium is a multimedia repository for scientific educational videos. In 2010, Videotorium became the successor of the largest Hungarian public scientific video repository service, NIIF VOD. Today, the site holds more than seven thousands of recordings (total length of about 3700 hours). Main Videotorium features at present are: - ability to simultaneously displaying both the presenter (speaker) and the presentation (slides etc.); - strong metadata model guarantees easy searching for uploaded recordings; - OAI-PMH (Open Arhives Initiative-Protocol for Metadata Handling) interface to interconnect with other repositories; - eduID/eduGAIN capabilities; - ability to broadcast lectures using live streaming service. The objective of this activity is to find out what parts of the web-service should be improved to accept and serve 4K resolution multimedia content. 4K brings more potential to many areas of science to extend their collaboration and multimedia sharing possibilities. Devices that can produce such footages are becoming available to the consumers so more and more people start using them. From research point of view, data visualizations, video demonstrations, videoconferencing, video collaboration, and many other scientific uses will take benefits of 4K. Due to the technological pressure, scientific and general needs as well as incoming standards and popularity, sooner or later each video sharing site needs to improve to accept and share large resolution content like 4K. Nowadays, these sites generally lack 4K support, but Videotorium, as a NIIF service (and staying loyal to NIIF's philosophy to adapt new technologies) should be ready to deal with 4K multimedia content. In the project, our objectives are: - find the technical possibilities to give the users the options of uploading and streaming 4K content to Videotorium in order to transfer more detailed video content (video and presentation) to their viewers, - investigate what are the ideal configurations of codecs, video formats, software and hardware for creating such detailed video content.

Teams :
NIIF Institute Voice Video Collaboration department has been developing and providing VoIP(since 2000) and Videoconference(Since 2003) and Video Archive service(VoD=>Videotorium since 2004) to the entire Hungarian academic and higher and secondary education, research and public collection community

Dates :
starting date : 18 January, 2015
ending date : 23 January, 2015

Facilities descriptions :
http://visionair-browser.g-scop.grenoble-inp.fr/visionair/Browser/Catalogs/PSNC.PL.html

Recordings & Results :
Our project goal is push the envelope and push out the current limits in resolution manner. To investigate Videotorium in High Definition Video and above 2K and 4K environment. To identify various Capture Cards, OS, and Browser implementations, investigate and identify compatibility issues, implementations issues, or even lack of implementation or any form of barriers.

Conclusions :
4K is a relatively new technology that provides a lot of possibilities for the members of our network (researchers, education people, ). 4K video-on-demand content could easily be captured and uploaded to Videotorium. The conversion process and playback was simple and straightforward, I discovered no problems with this part of the study. Producing live content streaming for Videotorium in 4K is not a trivial process due to some limitations of the codecs that should be used to transfer such a great amount of data in an acceptable quality. Basically, streaming of 4K content worked with selected codecs and protocols.




Project Images :