Play MP3s from Windows

[MRAB]

Arlie wrote:
> Hi,
> 
> Newbie here. I copied and pasted the code below. But when I ran it I
> got this error:
> 
> D:\>python mp3.py
> Duree du fichier :  298919  millisecondes
> Traceback (most recent call last):
>   File "mp3.py", line 37, in <module>
>     time.sleep(int(buf)/1000)
> ValueError: invalid literal for int() with base 10: ''
> 
> The code:
> 
> # -*- coding: utf-8 -*-
> 
> import time
> from ctypes import windll, c_buffer
> 
> class mci:
>     def __init__(self):
>         self.w32mci = windll.winmm.mciSendStringA
>         self.w32mcierror = windll.winmm.mciGetErrorStringA
> 
>     def send(self,commande):
>         buffer = c_buffer(255)
>         errorcode = self.w32mci(str(commande),buffer,254,0)
>         if errorcode:
>             return errorcode, self.get_error(errorcode)
>         else:
>             return errorcode,buffer.value
> 
>     def get_error(self,error):
>         error = int(error)
>         buffer = c_buffer(255)
>         self.w32mcierror(error,buffer,254)
>         return buffer.value
> 
>     def directsend(self, txt):
>         (err,buf)=self.send(txt)
>         if err != 0:
>             print'Erreur',str(err),'sur',txt,':',buf
>         return (err,buf)
> 
> mci=mci()
> mci.directsend('open "d:\\Linger.mp3" alias toto')
> mci.directsend('set toto time format milliseconds')
> err,buf=mci.directsend('status toto length ')
> print 'Duree du fichier : ',buf,' millisecondes'

 From the output it's clear that 'buf' contains '298919'.

> err,buf=mci.directsend('play toto from 0 to '+str(buf))
> time.sleep(int(buf)/1000)

 From the output it's clear that 'buf' contains ''. Are you expecting it
to contain the length, like it did for the previous call? Perhaps you
should just use the length returned by the previous call.

> mci.directsend('close toto')
>