Quote:
Originally Posted by Boulder
I think those are quite typical "artifacts" of x265 encoding. I was just thinking that AQ can affect such things because it is shifting bits inside the frame. Lowering qg-size to 16 could also change things.
By the way, hdr-opt nullifies your settings regarding the chroma QP offsets so it won't help.
|
If I raise aq-strength, what happens? More complex blocks get more bitrate or opposite?
I read the docs and it seems to me that raising aq-strenght give more bits to flat areas.
Quote:
Adaptive Quantization operating mode. Raise or lower per-block quantization based on complexity analysis of the source image. The more complex the block, the more quantization is used. This offsets the tendency of the encoder to spend too many bits on complex areas and not enough in flat areas.
|
Quote:
Adjust the strength of the adaptive quantization offsets. Setting --aq-strength to 0 disables AQ. At aq-modes 2 and 3, high aq-strengths will lead to high QP offsets resulting in a large difference in achieved bitrates.
|