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