[Matroska-devel] Re: Re: MPEG2 in MKV!

Pamel paul at msn.com
Thu Oct 30 18:51:20 CET 2003


"spyder" <spyder at matroska.org> wrote...
>> [Aa][Bb][Cc][CD][Dd]
> Ummm, RFF repeats the first field last ie, in 121 order. not 112. :P
> Your output sequence would be:
> [Aa] [Bb] [Cc] [CD] [dD]

I copied and pasted what you put in IRC.
[00:11] <spyder482> here's the way it actually works according to mpeg docs:
[00:12] <spyder482> [A][B][Cr][Dr] yields [Aa][Bb][Cc][CD][Dd] on decode


>> There are two ways to handle the pulldown. You can store it like its stored
>> in MPEG-2, or you can 'fix' it an remove the pulldown.

> Bad idea to remove the pulldown.  MPEG decoders expect constant framerate and
> you can't change the framerate to 24fps becasue you would need to drop some
> frames which would break the encoding scheme of mpeg2.  (ie, removing data
> referenced by other frames)

We just need to change to framerate as specified in the Sequence headers.


Pamel






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