'The following is an example of creating a program that
'takes command-line arguments. This example uses SHELL to
'run ffmpeg to convert an audio/video file in the simplest
'way possible, something similar like this:

'    ffmpeg -i input.ext output.ext

'If you notice the CHR$(34) parts in the INPUT/OUTPUT_FILES$,
'this is to make sure the file-paths get wrapped inside of
'double-quotes; otherwise, if there are spaces in the file-paths,
'it won't work.

'Command$(1) refers to the first argument supplied.
'Command$(2) refers to the second argument supplied.

'---------------------------------------------------------------

INPUT_FILE$ = Chr$(34) + Command$(1) + Chr$(34)
OUTPUT_FILE$ = Chr$(34) + Command$(2) + Chr$(34)

Print "Converting... Please wait..."
Shell "ffmpeg -i " + INPUT_FILE$ + " " + OUTPUT_FILE$
Print "Conversion finished."