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15th February 2022, 16:43 | #142 | Link |
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What else? VLC is very buggy even in 601 vs 709 matrix, no one except mpv supports color managmnet of PAL and SMPTE C primaries. Only mpc-hc support color managment with icc besides mpv, and last only mpv can output PQ swapchain with Dolby Vision. Only mpv supports bt.2020-cl matrix, only mpv supports ICtCp... Etc. It still does not support superwhite though.
Mpv uses only nvidia decoder of YCbCr by default, which is correct compared to Intel's. Last edited by Balling; 22nd March 2022 at 12:27. |
27th May 2022, 06:01 | #145 | Link |
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I've got one question about the -c option in dovi tool.
How does that work? I mean, sometimes I'm not certain about the exact amount of the letter box, so I maybe leave 2px or 4px up and down. Does this mess up the encode? I mean, I rather encode in 3120x1616 or 3120x1608 rather than 3120x1606 3120x1604 Does this ruin it? if so, Is there any ways to fix it? Thanks |
27th May 2022, 11:50 | #146 | Link |
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-c zeroes L5 metadata. You use it when you have video without black borders being part of it. Should you have a few px left after recoding, you have to set L5 to those values. -QfG-'s scripts can help with this.
See https://forum.doom9.org/showthread.php?t=183479 Depending on your playback equipment, there is a chance that these small black bars will display differently than the black areas that are created to make it fullscreen. May I ask why you use 3120 width? Last edited by von Suppé; 27th May 2022 at 11:55. |
27th May 2022, 12:07 | #147 | Link | ||
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Quote:
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27th May 2022, 14:23 | #148 | Link |
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I think RPU is applied in the so-called 'active area', which I would wildly guess to be the videoresolution minus the L5 offset values. But I can be horribly wrong here; RPU carries a lot of data of which I don't know their meaning. Maybe more knowledgable people want to step in.
Anyways, if I wanna crop very precisely, I load a screenshot in an image editor. Using rectangular selection tool and zoom function, it's easy to determine the black bar sizes with one-pixel-precision. |
28th July 2022, 13:45 | #149 | Link |
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As far as I know Dolby processing should be always applied to active area only, so in case of aspect ratios different to UHD frame (so anything like 2.35 etc.) always require specifying crop/active area or whatever is needed by given tool to work on active area only.
Same applies to mastering when you create Dolby masters with XML metadata. |
19th October 2022, 22:39 | #150 | Link | |
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Quote:
Code:
ffmpeg -i input.mkv -c:v copy -vbsf hevc_mp4toannexb -f hevc - | dovi_tool extract-rpu - -o RPU.bin But how do I get the RPU into my encoded video? First, I have tried it in HandBrake directly (which would be the perfect way). I've added Code:
vbv-bufsize=160000:vbv-maxrate=160000:dolby-vision-profile=8.1:dolby-vision-rpu=/Filepath/RPU.bin Code:
encx265: unknown option 'dolby-vision-rpu' Code:
ffmpeg -i video.m4v -c:v copy -c:a copy -vbsf hevc_mp4toannexb -f hevc - | dovi_tool inject-rpu -i - --rpu-in /Filepath/RPU.bin -o final.mp4 Code:
Error: RpuInjector: Must be a raw HEVC bitstream file |
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20th October 2022, 01:00 | #151 | Link | |
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Quote:
I think I've seen people use ffmpeg, but I'm not sure if it actually works. For injecting, you need to be using the raw bitstream, it can't be piped. So demux first, inject, remux. You also can't output in mp4, it'll just be HEVC with no container.
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