What do encoder presets do for CQ = 0 ??

General questions or discussion about HandBrake, Video and/or audio transcoding, trends etc.
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Iketh
Posts: 28
Joined: Fri Nov 04, 2011 8:02 pm

What do encoder presets do for CQ = 0 ??

Post by Iketh »

Veryfast has given the smallest file sizes in my tests when using constant quality 0, so what is the difference between each preset for lossless compression?
Deleted User 11865

Re: What do encoder presets do for CQ = 0 ??

Post by Deleted User 11865 »

RF 0 only gives you lossless if:

- you're using an 8-bit H.264 encoder
- encoder preset is set to auto or another lossless-compatible profile

Our profile sanitizer resets the RF to 1 when the selected profile isn't lossless-compatible, and you'll get a warning in the log:

"apply_h264_profile [warning]: lossless requires high444 profile, disabling"
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