JFK				Pale Rider				Dead Zone				Dancer In The Dark				The Great Dictator				Princess Mononoke
		psnr	fps	avq		psnr	fps	avq		psnr	fps	avq		psnr	fps	avq		psnr	fps	avq		psnr	fps	avq
:		40.59	53.9	4.22		38.42	48.7	4.75		36.90	34.9	6.95		42.42	45.4	3.64		37.36	28.8	5.13		38.42	25.7	6.45
vhq		40.63	41.7	4.20		38.43	42.3	4.73		36.97	29.2	6.87		42.46	35.8	3.62		37.38	23.1	5.11		39.76	21.1	4.78
v4mv		39.85	50.9	4.79		37.87	47.9	5.20		35.90	32.2	8.17		42.10	43.5	3.85		36.66	26.5	5.84		37.90	24.4	6.96
vhq:v4mv		40.73	34.9	4.12		38.50	34.3	4.67		37.06	23.0	6.74		42.50	30.9	3.58		37.42	17.9	5.05		39.83	18.3	4.70

• Without any special options, libavcodec is increadibly fast ! 
• Never use v4mv alone, not only you will loose speed but also PSNR ! 8-|
• vhq is only marginaly useful for most scenes, but on the anime one (PM) it's a really huge win !
  Don't waste your time with it on B/W movies.
• vhq+v4mv gives you a significant PSNR increase, but the performance price is there.