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[BUG] x264 colormatrix option changes when "Overwrite input type scan" is enabled
#16
Sorry, I had to leave for an hour.

Sorry if I confused you. I said,

Quote:I open a mpg muxed DVD (no re-encoding),

DVD was ripped, VOB's were muxed to mpg file using ffmpeg, with video only and no re-encoding:

ffmpeg -fflags +genpts -i "concat:VTS_01_1.VOB|VTS_01_2.VOB|VTS_01_3.VOB|VTS_01_4.VOB" -vcodec copy -an video.mpg

Ffmpeg copies tags from the VOB's into the mpg.

It was my understanding that DVD's were supposed to be 601, HD is 709. I guess I have that wrong? I have quite a few DVD's that show 601 with MediaInfo. The particular one I made the log files with doesn't have anything regarding color matrix. (I thought that meant it should be assumed to be 601.) I have no idea where I got that info now.. it's just something I thought I had correct which I apparently do not. I'm very sorry for my lack of understanding this.

Regardless, here is how the current dev version behaves. (I am now using the latest dev version you sent: 2020.09.25-162327.)

When I load the muxed DVD mpg file, it shows on the x264 tab as bt709 for -colormatrix from the start. It also has the issue when turning on RGBAdjust, the input conversion matrix to RGB is set as Rec709, and the output conversion matrix to YV12 is set as Rec601.

When I reload the same mpg file, now the x264 tab has bt470bg for -colormatrix, and RGBAdjust has the input conversion matrix to RGB as Rec601, and the output conversion matrix to YV12 as Rec601.

Here's the log for all of the above, including the initial file load, then the reload.

[attachment=1044]

I can see you now *just* sent another dev version, so I'll try that one now! Blush
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RE: x264 colormatrix option changes when "Overwrite input type scan" is enabled - by The_Tinkerer - 25.09.2020, 20:11

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