[Mp4-tech] MPEG-4 field prediction and not_coded

[steffen.maul philips.com]

Hi experts,
under which conditions it is possible to set a field predicted MB of a
P-VOP to not-coded?
I see problems because the field references are not transmitted in this
case. Do the
field references have a default value (top field for instance)?
Thanks in advance for your answer,
Steffen
----------------------------------------------------------------------------------------------------------------------
Steffen Maul
Department Video Coding
Consumer Businesses Innovation Center Hamburg
Philips Semiconductors GmbH                     phone:  +49 40 5613 3725
Stresemannallee 101                                        fax:         +49
40 5613 3525
22529 Hamburg, Germany
Intranet: http://pww.ich.sc.philips.com/
Intranet: http://pww.cc-vcs.sc.philips.com/
----------------------------------------------------------------------------------------------------------------------