The actual video data is sent with their own proprietary Real Data Transport (RDT) protocol.
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RealNetworks says that the RealVideo and RealAudio codecs are not available in source code under the RPSL license.
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RealVideo can be played from a RealMedia file or streamed over the network using the Real Time Streaming Protocol (RTSP), a standard protocol for streaming media developed by the IETF.
Game Time! transformed from being an audio only show to using streaming video via RealVideo.
RealVideo appeared just before StreamWorks, but at the time it was known as RealAudio and could only broadcast audio.
While there, Thelen successfully launched RealAudio (stereo streaming audio over the Internet) and RealVideo; wrote the business plan and deployed the RealProducer and RealPublisher media editing, compression and deployment tools; and lead strategy for the Media Systems division as Group Product Manager.
Some RTÉ content is available without geographic restrictions in RealAudio or RealVideo formats, including virtually all news and events broadcasts on radio and television dating back to 1998, and most episodes of Prime Time and Nationwide dating back a number of years.