Offline speech recognition and transcription to SRT file

1. Download at least one vosk model from alphacephei
   I suggest vosk-model-en-us-0.22 to maximise the result
   Once downloaded a vosk model, unzip the file and rename the folder to "model", then place it in the project's root directory.

2. You also may need ffmpeg, if it is not present in your system, place ffmpeg executable in the project's root folder.

3. Vosk has been already compiled as dynamic library in his official repository
   download it and place libvosk.so under lib/ and you are ready to go!

> cd src
> make

./mp4toSRT sample.mp4

the result will be in result.srt