[nyancat]

I'm assuming you're using Windows. So, grab the latest version of FFMPEG from here:
https://ffmpeg.zeranoe.com/builds/wi...in32-static.7z

You may need 7-Zip to extract the file if you cannot open it.

Now, open the bin folder from the files you just extracted. You should see ffmpeg, ffplay and ffprobe inside. Click on the address bar at the top and copy the entire path.



Now open Command Prompt and then enter the following (don't forget the quotes):

cd /d "<right-click and paste here>"

Obviously, paste the path after the first quote and add a quote at the end.

So for me it looks something like this:

cd /d "C:\Users\nyancat\Desktop\ffmpeg-20160330-git-be746ae-win32-static\bin"

Now, press Enter and then copy-paste the FFMPEG command from your browser and press Enter.