• Apple Final Cut Pro Legacy

  1080i to Prores and interlace conundrum with Compressor

  Posted by Alisa Kotmair on October 15, 2010 at 3:25 pm

  Hi,

  I’ve combed the forum looking for explanations but am still not sure if its me or just the way things are:

  1) Can anyone explain why converting hdv 1440 x 1080 50i (Europe) to prores square pixels (1920 x 1080) using compressor results in really bad field jaggies?

  2) Also, when I try to convert 1080i to (prores) progressive, quick motions seem to jump or strobe, despite all degrees of motion adaptive detail settings. I have also tried variations of the Nattress de-interlacer with similar results both in pro-res as well as hdv.

  Is this simply normal? The motif is a person against a white background, so every movement stands out.

  I usually work with 1080 25p where i have not had problems converting to prores, and this is the first time Ive worked with 1080 50i.

  The film will be shown on a flat screen or projected from a computer hard drive, so it needs to be interlaced, be it now or on the fly via hardware, so it seems better to do it now.

  Any insight on the issue would be very welcome!!

  here are my compressor settings (FCS 3), I pull self contained quicktime films straight into compressor or use a droplet:

  no deinterlacing:
  video settings> interlaced top field first
  frame controls> off

  I also tried this combination, results were similiar:
  video settings> interlaced top field first
  frame controls> on, output fields: same as source

  compressor settings progressive:
  video settings> interlaced top field first
  frame controls: on, output fields: progressive; better deinterlace

  Alisa Kotmair replied 15 years, 7 months ago 1 Member · 0 Replies
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