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Adolfo Rosas


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Adolfo Rosas

  1. 1. Future for internet streaming media Adolfo M. Rosas EU workshop January 19, 2010 Future research priorities in the Networked Media Systems research area
  2. 2. Context <ul><li>Internet video & media streaming is a driving force for traffic consumption today. Video will be 90% of total internet traffic by 2013. (CISCO) </li></ul><ul><li>Some commercial services were designed along the past 15 years to close the internet ‘media gap’: CDNs. </li></ul><ul><li>Video & media objects have been ‘small’ until very recently (2 years). </li></ul><ul><li>Consumption of internet media has moved from downloads to streaming. </li></ul><ul><li>Sudden availability of file sharing (P2P) created a ‘video culture’ in internet. </li></ul><ul><li>Some companies invested a lot to push this culture : Youtube. </li></ul><ul><li>P2P file sharing and P2P streaming could not close the media gap. </li></ul><ul><li>Commercial P2P services could not close the media gap. </li></ul><ul><li>Telcos fight P2P: DPI, throttling, … </li></ul><ul><li>IPTV never made it to internet: now moving streaming protocols from complex to easier solutions. RTP+MPEG2TS+RTSP  TCP+HTTP </li></ul><ul><li>Premium media (BluRay , HD) out of the legal services in internet due to deficiencies in security and misalignment of majors and ISPs biz models . </li></ul><ul><li>Internet media today works (barely) just because the ‘pipes’ are big now but still dumb… </li></ul>
  3. 3. Short term <ul><li>There is a need to simplify the streaming media state of the art (mostly inherited from IPTV) to fit the internet. </li></ul><ul><li>Must stabilise media transports : mapping any new coding schema (MPEG4AVC,On2VP6,…) onto ‘pure’ HTTP is a must. </li></ul><ul><li>Correctly map scalable coding on the easy transports </li></ul><ul><li>Investigate ways to provide QoS to internet HTTP flows end to end </li></ul><ul><li>Evolve HTTP to be a suitable media transport </li></ul><ul><li>Work to enable multicast safely on wide area multihomed networks </li></ul>
  4. 4. Mid term <ul><li>Define schemas for the dynamic creation of media networks on top of internet : overlaid media networks. Build upon the work done by P4P and ALTO. </li></ul><ul><li>Being able to interconnect dynamically CDN nodes from different owners is important </li></ul><ul><li>P2P streaming has been a hot research topic, but much applied innovation is needed to create open services end to end. </li></ul><ul><li>Content handling policies (including but not limited to access) must be made interoperable. </li></ul><ul><li>Forget about CAS & DRM , implement ‘open managed media’. </li></ul>
  5. 5. Long term <ul><li>Evolve the very internet ‘fabric’ to content aware machinery. </li></ul><ul><li>Evolution of IP protocols and the switching machinery is heading towards content aware routers and content aware IP stacks. </li></ul><ul><li>It is key to have media transport supported natively by the network so no extensive planning needs to be done at the application layer (out of the network). </li></ul><ul><li>Network should have the mechanisms to optimise the data paths and content delivery. </li></ul><ul><li>Applications will be required only to especify a few QoS settings. </li></ul><ul><li>There is a the need to create new business models for the consumption of internet media. </li></ul><ul><li>We are at a serious risk of ‘digital life monopoly’ by a few companies that ofer appealing media services. </li></ul>