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Originally Posted by jriker1
Thanks for the replies. With looking at the content, I historically have hit constant bitrates that things looked good but probably also used more bits than needed. Always been 1080p content. With things I just wanted to keep I did constant 8,000kbps and with things I really liked I used 10,000kbps. Good or bad, who knows. And that was with WMV HD.
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I was at Microsoft working on digital media 2005-2012. Interesting times.
Anyway, WMV HD didn't have a quality VBR mode like x265's CRF. "Quality" mode was just fixed QP. The only real choices were CBR or 2-pass VBR.
With x265, CRF allows for a capped VBR that is better tuned to deliver real-world quality at reasonable bitrate. If you're archiving stuff you want to look good but not be super big, it's the mode you want.
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With HDR content it's all new to me and was going to do like 15Mbps for standard stuff at 17.5Mbps for stuff I like like. Not sure how well I can visualize good or not since I don't have a physical monitor that can view it with as HDR content. Is looking at it on a wall TV the way to look? Could I go back and forth between the two videos on my TV, probably not easily and know if there are differences since they aren't side by side so wanted to just find an encoding CRF that is clean. So then I find out that I can't use any of my "higher cost" rendering tools and maintain the full HDR10 info I switched to ffmpeg, which technically doesn't have a CBR option so here I am.
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CBR is so 90's. The old saw is that you get constant bitrate by varying quality, and consistent quality by varying bitrate. People really don't do CBR for files or discs anymore, just for live streaming.
Also, making backup encodes of content you can't watch is probably premature
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If you have a semi-recent GPU and Windows 10, you should be able to plug the GPU into the TV and have it act as a HDR monitor (hand-waving around a lot of caveats).