REAL NETWORKS TECHNOLOGY From production to the streaming Jean-Francois Reveillard  2003 PROGRESS TV France www.students-webtv.com - www.progress-tv-France.com.

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Presentation transcript:

REAL NETWORKS TECHNOLOGY From production to the streaming Jean-Francois Reveillard  2003 PROGRESS TV France

REAL NETWORKS TECHNOLOGY AGENDA  The streaming  The sure stream  The application  The production tools  2003 PROGRESS TV France

REAL NETWORKS TECHNOLOGY What means streaming  DEFINITION Streaming defines the technology allowing to send on internet compressed multimedia sequences which can be consulted using an adapted «player» or a specialized plugin. The streaming permits to read continiously a program delivered by a server. This avoids waiting time due to the downloading action called « buffering ».  2003 PROGRESS TV France

REAL NETWORKS TECHNOLOGY What means streaming (2)  PRINCIPLE OF REAL NETWORK STREAMING Real Networks technology is based on his own encoding and decoding program (codec) itself based on a specific and patented algorithm. This approach permits to read a program in live, or prerecorded «on demand». In case of live program, only one encoding stream is generated and distributed to multiple sites, called « multicasting».  2003 PROGRESS TV France

REAL NETWORKS TECHNOLOGY What means sure stream G2  PRINCIPLE The files encoded with the Real production tools register the stream at different speeds within one single file. When one request is sent to the server, this request contents the information about the bandwidth available at the demanding site. The returned signal will be automatically and precisely adjusted to that bandwidth.  2003 PROGRESS TV France

REAL NETWORKS TECHNOLOGY What means sure stream G2 (2)  PRINCIPLE The Real Networks software allows : - to follow the generated streams calculation - to establish the statistics in real time of the live program’s audience for the different types of «pipe’s capacity».  2003 PROGRESS TV France

REAL NETWORKS TECHNOLOGY What means sure stream G2 (3)  ADVANTAGES OF SURE STREAM G2 software : - it treats a single stream, even in case of audience with different targeted bandwith types - it treats the stream adjusting in the same time to the available bandwidth at the target - it has integrated compatibility with former player softwares  2003 PROGRESS TV France