Version 4.0 (11/07/2017):
Several changes, the most important are:
- Changed by default b_strategy to 2, improving encoding in dark areas. This change has generated a domino effect on the GOP structure, including reducing the default value of sc_threshold to -30000.
- Changed the size of the diamond to -4, the negative value is to reduce the impact on the coding speed.
- Changed the default matrix, now it is MPEG.
- Also a group of matrices has been included to be applied depending on the bitrate, the source or the taste of each one.