Thanks. That makes sense. IS there a way I can change this. I
tried -color_range 1/2 but it makes no difference.
-----Original Message-----
From: Martin Vignali
Sent: Wednesday, April 11, 2018 3:22 PM
To: FFmpeg user questions
Subject: Re: [FFmpeg-user] Convert images to DNXHD 444
There is also an image http://elmtreecottages.co.uk/Charts.jpg which
shows a screen example of the difference. (ffmpeg on the left) The
quicktime version is, to me, indistinguishable from the source tiff in
terms of colour. The ffmpeg version is less saturated and a bit "milky". I
have been searching for hours for any way to get the correct output. This
happens with dnxhd dnxhq and dnxhdr. Given that re-encoding the quicktime
version with ffmpeg does not produce the same colour shift, i.e. the
output
is identical I am thinking it is the way ffmpeg is dealing with the tiffs
rather than the way the encoder is behaving, if this makes sense.
Any ideas how/if I can resolve this?
Seems like the ffmpeg file is in YUV full range, and the Quicktime output
is in YUV legal range.
Also called jpeg range (= full range), and mpeg range (legal range).
Martin
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