What codecs does BD Rebuilder accept?

[Sebarino]

I'm trying to find out what compressed lossless codecs BD Rebuilder recognizes when you import a video file. I know the wrappers because they are there in the drop down list in the import dialog, and the only two wrappers that can have lossless compressed codecs are AVI and MOV. I know that MOV with the DNxHR doesn't work, but I don't have a lot of choices except maybe exporting a totally uncompressed file, which would be gigantic because this is 2160p 10 bit with HDR, so even half an hour would produce a gigantic file.

I'm using Resolve Studio to edit this footage, and it doesn't have a lot of options when it comes to compressed lossless, but I'm trying to find out which codec in these two wrappers BD Rebuilder can read.

[davexnet]

You can try lossless H.264 in mp4, for example,

ffmpeg.exe -i "source_file" -c:v libx264 -preset faster -qp 0 -c:a copy "lossless_output.mp4"

[Sebarino]

You can try lossless H.264 in mp4, for example,

ffmpeg.exe -i "source_file" -c:v libx264 -preset faster -qp 0 -c:a copy "lossless_output.mp4"

Not a bad idea, but this video is 2160p HDR. Is x265 RF0 or qp 0 completely lossless, or perceptively lossless?

[davexnet]

You can try lossless H.264 in mp4, for example,

ffmpeg.exe -i "source_file" -c:v libx264 -preset faster -qp 0 -c:a copy "lossless_output.mp4"

Not a bad idea, but this video is 2160p HDR. Is x265 RF0 or qp 0 completely lossless, or perceptively lossless?

-qp is lossless for x264, not sure about x265

[Sharc]

You can try lossless H.264 in mp4, for example,

ffmpeg.exe -i "source_file" -c:v libx264 -preset faster -qp 0 -c:a copy "lossless_output.mp4"

Not a bad idea, but this video is 2160p HDR. Is x265 RF0 or qp 0 completely lossless, or perceptively lossless?

-qp is lossless for x264, not sure about x265

For x264 --qp 0 or --crf 0 are lossless for 8bit. --qp 0 is lossless for all bitdepths.
For x265 the option --lossless is truly lossless AFAIK.
https://x265.readthedocs.io/en/stable/lossless.html

In ffmpeg it would be -x265-params lossless=1 for example.