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Old 21st April 2019, 00:04   #46  |  Link
sunshine
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Join Date: Apr 2019
Posts: 17
Quote:
Originally Posted by _Al_ View Post
there is no "BT709" flag during encoding, so be careful, colors (reds, orange) are going to be most likely wrong if you try to view those archives , players might be defaulting to BT601 because of resolution
Oh oh!

What have I missed Al, and do you have a suggestion for how I might fix it?

Should I output 601 from the VapourSynth deinterlacing? If so, I'm not sure what I'd need to change.

Should I somehow flag that it's 709 during ffmpeg encode? If so, again.. I'm not sure what I'd need to change.

Thanks for spotting that Al!


FYI - I checked my input video with the following:

Code:
#!/usr/bin/env python

# import the needed modules
import vapoursynth as vs
import havsfunc as haf
import edi_rpow2 as edi

core = vs.get_core()

# read the clip
clip = core.ffms2.Source(source=INVID)
clip = core.text.FrameProps(clip)
clip.set_output()

Chroma Location: 2
Matrix: 2
Primaries: 2
Transfer: 2

Hopefully that's helpful info... but I recall you saying seeing a "2" there means unknown. All I know from MediaInfo is that the original AVIs are yuv411.

Last edited by sunshine; 21st April 2019 at 00:41.
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