I don't have experience with python, but I found this online:
https://gist.github.com/sinkers/d647a80fdb180b4cc3a6
Assuming it works with the current version of ffmpeg (ffprobe), I tried to just modify the code a bit, so it doesn't log in to Amazon SNS to send a message. Just simply opening an audio file when the stream goes down, with the following command (I found it on this site) would do just fine:
os.system("start /sound/xyz.mp3")
I tried to do this-and-that, but I can't seem to succeed. I have 3.x installed.
I know it's probably silly, but do I need to enter the relative, or absolute file locations? For ffprobe and the sound file, is it C:\... or what's the correct format and path?
Any help to solve this would be greatly appreciated.
Update for the edited question:
If you are on Windows you can do:
import os
os.startfile('C:/folder/sound.mp3')
If you're not using Windows then take a look at this and this.
Original answer
To launch ffprobe you can do:
retcode = os.system("/usr/local/bin/ffprobe rtmp://...") or
retcode = os.system("/usr/local/bin/ffprobe /path/to/file")
However, using os.system() won't help you capture the actual output of your command since it will fetch you only the return code (Eg: 0 if successfull).
That's why the example script uses run() instead.
If you want to validate RTMP streams you can also take a look at rtmpdump