<description>mode of each components, "YUV" two modes are possible: wide ('o') and narrow ('x') narrow mode is more sensible to variations, and less effective</description>
<description>scenechange detection threshold. lower it to make scd more sensible. if a scenechange is detected, cnr2 will reset the filtering for the new scene. </description>
<description>the n values are the movement sensibility: higher values will denoise more, but could produce ghosting artifacts the m values are the maximum effectiveness of the denoiser : lower them to reduce the denoising effect. l=luminance, uv=chroma</description>