[foms] MPEG TS streams and patents

[James Courtier-Dutton]

 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.