Select correct item from list for subprocess command

[Yoriz]

In the line

subprocess.run(['ffmpeg', '-i', f2, '-ss', '00:00:02', '-vframes', '1', f'{file.name.split(".")[0]}.png'])

file will be the last file asigned in the loop by location as it has not been defined as anything since then.

In the line

f2 = list1[int(f1)]

f2 has been assigned as the chosen item from the list and then nothing is done with it.