Subtitle Burner will allow you to hardcode (Burn) subtitle file to video file.
It's Easy. Just Choose your video file, subtitle file and output file and then click start.
You also can edit more subtitle options if you want.
Subtitle Burner Uses FFmpeg to encode video file with subtitle file.
THANKS to FFmpeg.
You can download the latest releases from HERE.
This software uses FFmpeg licensed under the GPLv2.0 
After building add two folders named 32, 64 in application folder each contains x32, x64 versions of FFmpeg respectively.
batch mode