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Old 21st February 2021, 00:13   #1  |  Link
YaBoyShredderson
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Join Date: Jul 2020
Posts: 71
High bitrate 4k - x264 vs x265

I want to produce high quality files for archival purposes. They will also be the final product being uploaded to youtube.

Rather than let davinci resolve do the encoding, i have decided to export uncompressed and then encode that file to get the final product, and then deleting the uncompress file. I plan on doing this as davinci resolve doesnt give me a lot of options, at least not the free version.

The product will be 4k, 8 bit SDR content at either 30 or 60 fps, i havent decided, but most probably 30. While i am compressing it to save space, the quality does need to be very high, visually lossless. It needs to be good enough that you would have absolutely no qualms about encoding it again if need be, something like a 4k bluray.

X265 really starts to stretch its legs at 4k, but its also really slow, evem without using the veryslow preset, x264 is much faster, and due to my videos being sdr, wont pose a problem, but it means even higher bitrates. What should i do?

Also what crf should i use? With my preset in staxrip i use to encode my 4k blurays, i use crf 20, this gets me an average of about 18mbits. Going by the +/-6 crf rule, i think a crf 12 will give me about the same bitrate as a 4k bluray.
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