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Old 22nd November 2019, 02:12   #29007  |  Link
Alleycat
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Join Date: Nov 2019
Posts: 9
I rebuilt a concert blu-ray which had 720 x 480i mpeg 2 source with a 16:9 display aspect ratio. I noticed that the rebuilt version has small black bars at the top and bottom and the picture was of reduced height (slightly squashed) compared to the original. When I used the hidden option show_encoder=1, x264 reported the following: "lav [info]: 720x480i 32:27 @ 30000/101 fps (cfr)"
I could see that bd-rb was then telling x264 to use SAR=40/33 when doing the re-code, which I believe is the cause of this problem. Is there a way of forcing bd-rb to preserve the original SAR value?
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