x264 - give less bits to I frames?

[rahzel]

It seems like from all of my testing from two films, I frames have QPs around 15 or less. I know there's fewer I frames, but it seems to me that too much priority is going to I frames.

What setting(s) can give more priority to B and P frames? Is it the Quantizers ratio? Currently mine is at 1.4 and 1.3.

[nm]

It seems like from all of my testing from two films, I frames have QPs around 15 or less. I know there's fewer I frames, but it seems to me that too much priority is going to I frames.

I-frames get lower QPs for a reason, which is better quality overall when other frames benefit from higher quality references. The parameter you look for is ipratio (http://mewiki.project357.com/wiki/X264_Settings#ipratio) (and maybe pbratio), but it's very likely that you'd be better off with the default values.

[rahzel]

Thanks. I'll just leave it then.

[Marin85]

As an alternative, may I suggest lowering the number of I-frames and/or increasing the number of b-frames used?