no-weightb
Default: Not Set
H.264 allows you to 'weight' references in B-frames, which allows you to change how much each reference affects the predicted picture. This disables that feature.
Recommendation: Default
weightp
Default: 2
Enables use of explicit weighted prediction to improve compression in P-frames. Higher modes are slower.
NOTE: When encoding for Adobe Flash set this to 0 - its decoder generates artifacts otherwise. Flash 10.1 fixes this bug.
Modes:
0: Disabled
1: Blind offset (a constant offset of -1)
2: Smart analysis with duplicates, designed specifically to improve compression in fades.