Sets the minimum quantizer.
Sets the maximum quantizer.
Sets the maximum change in quantizer between two frames.
Modifies the target average increase in quantizer for I-frames as compared to P-frames. Higher values increase the quality of I-frames generated
Modifies the target average decrease in quantizer for B-frames as compared to P-frames. Higher values decrease the quality of B-frames generated. Not used with mbtree (enabled by default), which calculates the optimum value automatically.
Add an offset to the quantizer of chroma planes when encoding.
Set the size of the inter luma quantization deadzone. Deadzones should be in the range of 0 to 32.
Set the size of the intra luma quantization deadzone.Deadzones should be in the range of 0 to 32.
Without AQ, x264 tends to underallocate bits to less-detailed sections. AQ is used to better distribute the available bits between all macroblocks in the video.
Sets the strength of Adaptive Quantization bias towards low detail ('flat') macroblocks.