[Bf-funboard] Render Buttons proposal

[William Reynish]

Great feedback!

I think one advantage of including the DVD format as
well as the regular one would be to make it apparent
that there is infact two formats. Not that many people
probably knows there is a difference between regular
NTSC and NTSC DVD. It's no big deal..

-William

 --- Luke Wenke <iljwamh1234567890@hotmail.com> skrev:
>
http://www.uwasa.fi/~f76998/video/conversion/#conversion_table
>
http://www.motionlink.com.au/pages/dvd_info/features_func.html
> The NTSC DVD format seems to be 720x480 (and
> occassionally 702x480)
> 
> http://www.videoessentials.com/DVEQ&A.htm#video
> "3)...In the NTSC DVD format the Overscan pattern
> has been built to the
> program production standards as specified in the
> SMPTE Recommended Practice
> (RP) document number 187. It specifies that the
> digital pixel area is 720 by
> 486. The digital pixel specification for DVD is 720
> by 480. That suggests
> that at least six lines in the vertical direction
> are going to be lost
> between the production format and the DVD
> itself.....When MPEG encoding came
> along for digital video it worked on even multiples
> of 16. The number 480 is
> the closest multiple of 16 to the production format
> of 486."
> That's because MPEG-2 (DVD compression) is a
> JPEG-type encoding that divides
> the picture up into blocks and sub-blocks.
> 
> See also sections 4.5 and its subsections:
> http://www.uwasa.fi/~f76998/video/conversion/#faq
> 
> So support for 720x486 isn't that important (if you
> want to do DVD's and DV
> at least) but if anyone requests it, it could be
> made into a default... or
> they could just add the preset themselves...
> 
> BTW, this has some more image formats: (it doesn't
> have pixel aspect ratios
> though)
>
http://astronomy.swin.edu.au/~pbourke/dataformats/imagedim/
> 
> - Luke.
> 
> ----- Original Message ----- 
> > Oh yeah, you seem to know a bit more about
> video/TV
> > formats, ofcourse they will have to be exactly
> > correct. I was just taling about the idea of those
> > formats. There must be somewhere on the web or
> > something where you can get it exactly right. But
> why
> > not include the NTSC DVD format? I know its very
> close
> > no regular NTSC, but even six pixels make a
> difference
> > in the end. You would want to get it exactly
> right.
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