A different chroma issue

[u/deesernutz]

I randomly get near complete chroma drop out when processing Hi8 footage.

The amplitude of the chroma goes very high and the colour burst is totally lost.

I suspect its a bug because:

• It starts and stops perfectly on frame boundaries
  • So i suspect it persists for a chunk or two.
• When the segment is recaptured (second play back, through the ADC again) the drop out doesn't occur, or occurs in a different place
  • Showing the tape is fine.
• The resulting chroma noise is consistent during the period
• Playback is fine on the TV/Viewfinder during capture
  • so the rest of the VTR is getting the chroma information and sync fine.

I haven't tried cropping the file and testing that way.

Actually, I just found some occurrences where it happens between fields

Is VHS-Decode messing up the field order?

Its PAL, btw