[foms] MPEG TS streams and patents

James Courtier-Dutton James at superbug.co.uk
Mon Dec 13 20:01:21 PST 2010

 On 13/12/10 13:21, Jeroen Wijering wrote:
> Hello all,
> Just to be sure, a transport stream is also a patent encumbered format, correct? So packing up VP8 / Vorbis into TS fragments for adaptive streaming would not be an open solution? It looks like transport streams are part of either the MPEG2 or MPEG2 Systems pool from MPEG-LA. See the PTS/DTS/PAT/PMT references: 
> http://www.mpegla.com/main/programs/m2/Documents/m2CrossRefChart.pdf
> http://www.mpegla.com/main/programs/m2s/Documents/m2sCrossRefChart.pdf 
> Thinking forward, would this mean MPEG DASH is also a no-go as an adaptive streaming standard? It seems to rely heavily on TS / MP4 / AVC. In turn, DASH might also be folded into one of the MPEG LA pools. Does anybody know more about this?
> Kind regards,
> Jeroen

As most adaptive streaming application will be over TCP/IP, I would
recommend against using MPEG TS.
MPEG TS is not very space efficient when transported over TCP/IP.

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