Fix Bugs

Need FFMPEG again to increase startup speed.
fix some bugs.

1.4.0

Embed FFmpeg.
No more need FFmpeg installed.

1.3.1

fix drag

1.3.0

1.3.0 Update

1.2.0

update to dotnet6

1.1.1

Fix Drag Dir

1.1.0

Support Metadata use ffmpeg.

1.0.0

FIX