[foms] MPEG TS streams and patents
jeroen at longtailvideo.com
Tue Dec 14 00:45:08 PST 2010
It's definitely not efficient. Also b/c of the 188-byte packages.
When unpacking Apple HTTP Live streams (especially the lower bitrate ones), a large amount of data is used for the packet headers, adaptation fields and retransmitting of the PAT/PMT and SPS/PPS (as in double digit percentages).
On Dec 14, 2010, at 5:01 AM, James Courtier-Dutton wrote:
> 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:
>> 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,
> 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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