handbrake rf vs average bitrate

[Strayan_Hades]

Hi,

 

What's the better option for best quality for video. RF or Average bitrate?

 

Also how is rf affected with h265 codecs?

 

Cheers 

[LAwLz]

It's not really as simple as "this will give you higher quality".

 

RF is when you tell the encoder "this is the quality I want. You figure out how big the file is".

Average bitrate is you telling the encoder "this is the file size I want. You figure out how good the quality will be".

 

Changing to x265 will not affect the RF or average bitrate values.

 

 

 

What you should do is experiment a bit with the different encoder presets. What they will do is trade CPU time for smaller file size or higher quality.

Something encoded with "slower" will look better, be smaller or a combination of both compared to something encoded with "faster".

 

RF and a slow preset -> The encoder will be able to achieve the set quality with fewer bits. The end result is a smaller file (compared to with a faster preset).

 

Average Bitrate and slow preset -> The encoder will spend the bits you have given it, but since each bit will contribute more to the image the end result is that the video looks better (compared to with a faster preset).

[Strayan_Hades]

 

so you mean a two pass encode will produce a better quality and lower file size with a average bitrate example 12000mbps?

But for RF does it have a two pass option? 

 

thanks for the reply.

 

Edited August 28, 2017 by Strayan_Bass