Let ffmpeg to use software encoding libx264 instead of hardware nvenc for better compatibility
Use yuv420p pixel format for better compatibility with Windows Media Player
Use QP 1 for almost lossless compression while remain compatibility with WMP (WMP does not support QP 0)
Note:
This new version v1.4.3 was made by directly patching the executable of v1.4.2.
I still haven't found the source code of SFBM!