- "Quality of post processing. Valid range is 0 to 6\n" \
- "Higher levels require considerable more CPU power, but produce " \
- "better looking pictures." )
+ "Quality of post processing. Valid range is 0 (disabled) to 6 (highest)\n" \
+ "Higher levels require more CPU power, but produce higher quality pictures.\n" \
+ "With default filter chain, the values map to the following filters:\n" \
+ "1: hb, 2-4: hb+vb, 5-6: hb+vb+dr" )