Re: avoiding jagged lines on mp2

On Fri, Apr 28, 2006 at 12:27:23AM +0200, Leonardo Boselli wrote:
> I tried to get a mpeg2 file from a dv file from camera using:
> 
> ffmpeg -f dv -s 720x576 -i dvfile.avi -b 2500 -ab 128 -vcodec mpeg2video \ 
> outfile.mpg
> 
> result is good if I have images without too much movements, but is the
> people move too much i get a lod of annoying jagged lines due to
> interlacing. Other times i resorted in the dirt way, encoding as a 384x288
> images, so using only even fields , but losing a lot of details.
> since post of the movie are maps and other drawing of course i want to
> keep the most detail it is possible, and the problem can be seen only when
> some one is gesturing. There is a way to avoid it ?

  Without looking at the samples (can you upload them, btw?) I would
  venture to guess that you might see the problems of ffmpeg not
  handling transition from Bottom/Top field first between the DV
  and MPEG.

Thanks,
Roman.