How to get Google to transcribe videos and provide subtitles?

Your best bet is to use autosub. Essentially it analyses your video and provides you with subtitles using YouTube's method.

1st step: Install chocolatey as admin. Open a prompt command window and type:

@"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))" && SET "PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin"

After installation is done, go to a prompt command window and type:

choco install pip python27 ffmpeg -y

2nd step: Install autosub type refreshenv

now type pip install autosub

Test using:

C:\Python27\python.exe C:\Python27\scripts\autosub_app.py -S en -D en YourVideo.mp4