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Message: DCMWG Meeting

DCMWG Meeting

posted on Jul 01, 2005 12:16AM
Is the DCMWG losing its way??

Very little progress being made.

Minimal support from airlines

Still no draft specification

Disagreement concerning forward-looking MPEG-4 based “standard”

Unclear license terms for MPEG-4

Severe lack of Engineering, Legal and WAEA resources

Time line – continues to slip

Need to Honestly Evaluate Scope and Objectives of the DCMWG!

Very little progress is being made

Manufacturers continue to bring multiple formats to market, esp. Portable devices

Studios are OK with MPEG-1 and 2 – WAEA 0395

Airlines are not participating in DCMWG despite requests

Examples of Problem

APS/Wencor digEPlayer uses DivX5 bit rate 880 kbps resolution 346x240

IMS PEA uses Windows Media 9 bit rate 1.3 – 1.5 mbps resolution 533x300

Yes Solo uses Windows Media 9

Panasonic – undecided/unclear

Chaos already exists when delivering MPEG-4 family of codecs

Key Questions/Issues?

Studios or airlines will be asked to pay for all these different digital formats

H.264 (current focus of DCMWG) focuses ONLY on embedded systems, not appropriate for portables

What can be standardized near term – REALISTICALLY??

Unlikely to be able to pick a single codec winner?

Options to Refocus the DCMWG

Establish bit rate for MPEG-4 codecs

Specify a bit rate of X and a resolution of Y

X could be 1.0 mbps (splits the difference between what is available today among vendors)

Manufacturers gain advantage of additional server space

Resolution Y- can be debated

Finish the Audio work (higher than 100 kbps)

Finish Security/key management

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