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DynaVideo is shown in a lecture and tested during the event

The ReMAV in Natal, or NatalNet, developed a video on demand system(VoD) called DynaVideo. This application was used in the experiment of transmission of a TV program produced by the University TV of UFRN to the TV Cultura in Florianópolis through an exclusive 6 Mbps channel. It was also used in the direct transmission of TVU's programming, during all the SBRC, to one of the stands located in the hall of UFSC's Reitoria. DynaVideo was developed to make TVU's(UFRN's University TV)video on demand archives available to the users connected to NatalNet network, one of the original projects of the consortium.

- During the last meeting of the Brazilian Association of Public TVs, I proposed that we extend this project to all the public TVs in Brazil. The proposal was approved in the meeting. We are working on a project to raise funds from the Information Society Program and make it possible to connect the TVs to RNP's network, declared NatalNet's coordinator, Guido Lemos.

Guido, who presented the project on May 21st, in the afternoon, explained how the transmission was made:

- The video is coded in MPEG-2 and trasmitted live on an ATM CBR channel of 6 Mbps. We are transmitting IP encapsuled in ATM using DynaVideo, which we developed in the ReMAV in Natal,as the video server.

This experiment involved groups of researchers and technicians from the ReMAVs Natal and Florianópolis, the PoPs in both states (PoP-RN and PoP-SC) and the federal universities of Rio Grande do Norte and Santa Catarina - UFRN and UFSC, under the supervision of analyst Edison Melo, coordinator of the ReMAV Florianópolis, and professor Guido Lemos, coordinator of the ReMAV Natal.

Another experiment carried out during the event allowed several people to watch part of the programming of the III WRNP2 and SBRC-2001. The transmissions were made in unicast and multicast mode. The unicast transmission could be followed by Internet users in general. As for the multicast packages, they were received only by RNP2 users in the areas whose PoPs had configurated their equipment for this kind of transmission: RS, MG, RJ, SC, PE and DF. The images recorded in the auditorium of the Reitoria were generated in digital video in MPEG-2 format with a resolution similar to HDTV, quality standard of high resolution images. The transmissions were made in real time,through RNP2 with configuration of differentiated IP service (bandwidth reserve) in order to ensure package traffic.

[RNP, 06.08.2001]