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UltraGrid 1.4. "Number 5 is alive" Release

June 2017

CESNET and the Laboratory of Advanced Networking Technologies (SITOLA) are happy to announce a new stable release of the UltraGrid software for low-latency and high-quality video transmissions over IP networks. The current stable release is versioned 1.4 and is available for download for all supported platforms at http://www.ultragrid.cz/.

The major news in this release include:

  • We have added AJA capture cards (https://www.aja.com/) support.
  • We have added Magewell capture cards (http://www.magewell.com/) support.
  • UltraGrid supports for new libavcodec encoders, including Intel Quick Sync and Nvidia NVENC acceleration. The support for specific combinations of codecs and HW acceleration of video encoding may vary depending on operating system used.
  • We have added the support for H.265/HEVC codec including NVENC acceleration.
  • UltraGrid 1.4 includes up-to-date version of our own GPU accelerated JPEG codec (GPUJPEG) with significant performance improvements allowing for encoding of up to 8K 60fps videos on recent Nvidia GPUs with Pascal architecture.
  • We have added Reed-Solomon Forward Error Correction scheme (suitable e.g. for H.264 compressed video streams) and improved the performance of the LDGM Forward Error Correction scheme on the CPU.
  • UltraGrid 1.4 features significantly increased overall performance on MS Windows including Windows 10.
  • We have added Syphon (http://syphon.v002.info/) server support.
  • UltraGrid 1.4 features text and border postprocessors, grayscale, mirror, and flip capture filters allowing for video post-processing for different scenarios.
  • We have added videoconferencing mode and audio mixer to the packet reflector and UltraGrid respectively allowing to setup a Multipoint Control Unit (MCU) like videoconferencing environment.
  • UltraGrid 1.4 is updated to match recent versions of supported drivers and APIs.

To foster the involvement of the broader community in the UltraGrid development we have moved the development of the UltraGrid to the Github (https://github.com/CESNET/UltraGrid/). Everyone in welcome to contribute! The move also includes the wiki documentation for the users which is now available at https://github.com/CESNET/UltraGrid/wiki.

To follow the latest news on UltraGrid deployment at CESNET you can follow UltraGrid Facebook profile at https://www.facebook.com/UltraGrid/ and the news at http://www.ultragrid.cz/.

UltraGrid is being actively used by different user communities. The latest, most interesting UltraGrid demonstrations and deployments by CESNET and the UltraGrid users community include:

  • Demonstration of Live 8K video transmission using commodity HW and the UltraGrid platform at the TNC16 conference (http://www.ultragrid.cz/news/TNC16/).
  • UltraGrid deployments for the transmissions of live medical cases. One of the most outstanding cases were the transmissions of video assisted, non-intubated thoracic surgeries where the specialists from the National Taiwan University Hospital in Taipei were teaching the method to the team at he University Hospital Brno, Czech republic (http://www.ultragrid.cz/news/Nits/).
  • Using UltraGrid as a flexible platform for telematic music and mixed media productions. UltraGrid has been successfully deployed to implement a number of large scale artistic productions such as net:art near in the distance 2 (https://www.net25.at/net25_netart.html?&L=1) or the cyber performance Similarities (https://npapws.org/npapws-programme/). Being a very flexible and scalable platform, UltraGrid helps to make possible much lower-profile events with incredible impact such as teaching jazz music interactively to 500+ students in elementary and middle schools or in public libraries over the CENIC network in California (https://sfjazz.org/sites/default/files/documents/SchoolDayConcertCENIC.pdf).

To contact the UltraGrid team please use ultragrid-dev@cesnet.cz.

Latest News

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UltraGrid 1.4. "Number 5 is alive" Release

June 2017

CESNET and the Laboratory of Advanced Networking Technologies (SITOLA) are happy to announce a new stable release of the UltraGrid software for low-latency and high-quality video transmissions over IP networks. The current stable release is versioned 1.4 and is available for download for all supported platforms at http://www.ultragrid.cz/.

Live Cardiologic Cases Transmissions

Live Cardiologic Cases Transmissions

May 2017

We continue to support the live cases transmissions at the congresses held by the Czech Society of Cardiology. We have deployed UltraGrid for interactive transmissions of interventional cardiology cases from the Institute for Clinical and Experimental Medicine in Prague and from the teaching hospital in Hradec Králové. A part of the programme was also an open heart surgery we have transmitted from the teaching hospital in Hradec Králové.

In all cases we have transmitted a live cases video including the imagery from variety of instruments and allowed for live and very interactive discussions over the live cases content between the workshop or congress chairs and participants and the surgeons and specialists conducting the cases in the remote hospitals.