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Old 17th August 2015, 07:36   #29  |  Link
hello_hello
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Join Date: Mar 2011
Posts: 4,823
Quote:
Originally Posted by feisty2 View Post
And I'm not really sure what was the question
I have a Bluray video. I re-encode it. I use no other filtering aside from colormatrix to change the colorimetry to rec.601.
(Of course normally I wouldn't do so unless I was downscaling to SD).
On playback I use a player that obeys the colorimetry info written to the video stream. I use the same TV/monitor each time.

The original Bluray video would look like this:

Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

After I convert the colours, I'd tell x264 to write this:

Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.601

The question was, how/why would they display differently?
I'm not sure how your references to subsampling apply.

Last edited by hello_hello; 17th August 2015 at 07:48.
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