"Native DV" editors at DVinfo.net

David Warrilow · May 13th, 2003, 08:26 PM

Whew!

You look around these days and everyone is talking about thier NLE's being 'native' DV editors. In my understanding a 'Native DV' editor is one that works in YUV colourspace - and doesn't convert the DV signal to RGB (or render its effects as RGB etc) - therefore creating no extra degradation to the delicate 4:1:1/4:2:0 signal, right?

So far I've found only Canopus DVStorm - which is bundled with a card. So if my definition is correct - which of the software only NLE's out there is REALLY a 'native DV' editor?

Thanks,

DW.

Rob Lohman · May 14th, 2003, 01:55 AM

To my knowledge a native DV editor just knows about the DV
format and can read/write in it. Nothing more.

The colorspace in your DV is indeed YUV (highly compressed
though -> NTSC: 4:1:1, PAL: 4:2:0 and then the extra 5:1 DV
compression itself). I'm pretty sure that the YUV is at least
being converted to RGB for display on your screen. Whether or
not the internal functions in an NLE work with YUV is a different
question. If I remember correctly Adobe Premiere plugins have
an RGB space available and no YUV. So I think Premiere is native
RGB. For Vegas you could look into scripting to see what they
offer, this usually is a good clue as to how the program works
internally.

Jeff Donald · May 14th, 2003, 05:55 AM

Just for reference, Final Cut Pro has the option to render in either YUV or RGB.

May 13th, 2003, 08:26 PM	#1
David Warrilow Regular Crew Join Date: Apr 2003 Location: Brisbane, Australia Posts: 106	"Native DV" edtiors Whew! You look around these days and everyone is talking about thier NLE's being 'native' DV editors. In my understanding a 'Native DV' editor is one that works in YUV colourspace - and doesn't convert the DV signal to RGB (or render its effects as RGB etc) - therefore creating no extra degradation to the delicate 4:1:1/4:2:0 signal, right? So far I've found only Canopus DVStorm - which is bundled with a card. So if my definition is correct - which of the software only NLE's out there is REALLY a 'native DV' editor? Thanks, DW.

May 14th, 2003, 01:55 AM	#2
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	To my knowledge a native DV editor just knows about the DV format and can read/write in it. Nothing more. The colorspace in your DV is indeed YUV (highly compressed though -> NTSC: 4:1:1, PAL: 4:2:0 and then the extra 5:1 DV compression itself). I'm pretty sure that the YUV is at least being converted to RGB for display on your screen. Whether or not the internal functions in an NLE work with YUV is a different question. If I remember correctly Adobe Premiere plugins have an RGB space available and no YUV. So I think Premiere is native RGB. For Vegas you could look into scripting to see what they offer, this usually is a good clue as to how the program works internally. __________________ Rob Lohman, visuar@iname.com DV Info Wrangler & RED Code Chef Join the DV Challenge \| Lady X Search DVinfo.net for quick answers \| Buy from the best: DVinfo.net sponsors

May 14th, 2003, 05:55 AM	#3
Jeff Donald Warden Join Date: Mar 2002 Location: Clearwater, FL Posts: 8,287	Just for reference, Final Cut Pro has the option to render in either YUV or RGB. __________________ Jeff Donald Carpe Diem Search DVinfo.net for quick answers \| Where to Buy? From the best in the business: DVinfo.net sponsors