Re: [libdv-dev] RE: horrible frames

[Daniel K. <ko...@ta...>]

On Mon, May 21, 2001 at 09:59:38PM +0100, Arne Schirmacher wrote:
> My understanding of the interlacing in DV is that every frame in DV is 
> actually two interleaved video frames where every other row has been 
> omitted. So a non-interlaced frame could be made by taking every other row 
> and duplicating it in two consecutive rows (to retain the w/h ratio) into 
> the destination buffer.

DV doesn't care about interlacing. That's your camera's business. Some models
allow you to switch off interlacing, i.e. they send only a single field at
full resolution. Has a drawback when capturing motion of course, as you're
sort of decreasing your sample rate. Nothing libdv should care about, though,
I think.

Regards,

Daniel.