23.04.2025, 13:51
Coming back to this, while rc-lookahead=12 indeed doesn't create compatibility issues, it would be very beneficial to allow for keyint=24 and rc-lookahead=24 at high bitrate encodes.
At the moment I've noticed increasing the bitrate beyond 15000kbps forces keyint from 48 to 24, and rc-lookahead is always set to a maximum of half the keyint, so it is lowered from 24 to 12.
keyint=24 combined with rc-lookahead=24 provides better compression and is completely blu-ray compatible and widely used so it would be nice to lift the restrictions there.
Thank you
At the moment I've noticed increasing the bitrate beyond 15000kbps forces keyint from 48 to 24, and rc-lookahead is always set to a maximum of half the keyint, so it is lowered from 24 to 12.
keyint=24 combined with rc-lookahead=24 provides better compression and is completely blu-ray compatible and widely used so it would be nice to lift the restrictions there.
Thank you