[MrKikkeli]

Hello,

I am still exploring the possibilities of pys60, and now I'm trying to write a simple shoutcast client.
The audio module doesn't seem to handle streams, so I have to write down the stream to two files: one is played while the other records the current stream, and so on.
I need to find out when the playing of the file is over ( that's when I am switching the recording file with the playing file), so I am experimenting a bit with the code in order to understand better the logic of the module ...

Here, I am testing if the Sound.state function can do that:

import audio
son = audio.Sound.open('E:\\Others\\buff2.mp3')
son.play()
i = 1
while son.state() == 2 and i < 2000:
    print i
    i = i+1

buff2.mp3 is 5 seconds long.
This piece of code should be ending well before i reaches 2000, and this is not the case.
Anyone sees what's wrong in there ?

(after a quick check state() returns an integer. 2 is equivalent to audio.EPlaying)

[jplauril]

I didn't write the audio module, but I'm guessing that busy wait loop you have there doesn't give the audio object the opportunity to update its state. Try inserting e32.ao_yield() in the loop. That will run the active scheduler and process pending events.

[cyke64]

hello ,

Perhaps this old discuss on the forum can help you:
Callback after audio file stopped playing :
http://discussion.forum.nokia.com/fo...ad.php?t=69284

[MrKikkeli]

Originally Posted by jplauril

I didn't write the audio module, but I'm guessing that busy wait loop you have there doesn't give the audio object the opportunity to update its state. Try inserting e32.ao_yield() in the loop. That will run the active scheduler and process pending events.

Wonderful ! This worked, so I can keep on writing my client. I guess I need to figure out the e32 module

Thanks for your help !

[MrKikkeli]

anyone wants to listen to Radio Helsinki on a s60 phone ?

##----------------------------------------
##
##      (very simple) client for ShoutCAST pys60
##      (c) MrKikkeli - 03/2006
##
##----------------------------------------

import httplib, audio, e32, appuifw

serveur = u'217.30.180.252'
port = 80
running = 1

def quit():
    global running
    running = 0
    exit()

appuifw.app.exit_key_handler = quit

conn = httplib.HTTPConnection(serveur, port)
conn.request('GET', '/')
rep = conn.getresponse()

## lecture des 64 premiers ko
header, stream = rep.read(64*128).split('\r\n\r\n')

if header.split('\r\n')[0].find('200') != -1:
    buff2 = open('E:\\Others\\buff2.mp3', 'wb' )
    buff2.write(stream)
    buff2.close()
    while running:
        son = audio.Sound.open('E:\\Others\\buff2.mp3')
        son.play()
        buffun = open('E:\\Others\\buff1.mp3', 'wb' )
        while son.state() == 2:
            buffun.write(rep.read(1024))
            buffun.flush()
            e32.ao_yield()
        buffun.close()
        e32.ao_yield()
    #    son.close()
        son = audio.Sound.open('E:\\Others\\buff1.mp3')
        son.play()
        buff2 = open('E:\\Others\\buff2.mp3', 'wb' )
        while son.state() == 2:
            buff2.write(rep.read(1024))
            buff2.flush()
            e32.ao_yield()
        buff2.close()
        e32.ao_yield()
    #    son.close()
                  

conn.close()

It works, though you get a short, annoying gap when switching from a buffer file to another. I don't think this can be changed, but any idea is welcome !
It'll be also needed to make sure the buffers don't grow exponentially in size. Maybe we can find the optimal buffer size if we know the download speed of the phone...

[jplauril]

Hmm, both my phone (6630, with PyS60 1.3.1) and my PC raise an exception inside httplib.py at that rep.read(64*128)... line. Are you sure this is the code that worked for you?

[MrKikkeli]

I've just copy/pasted this code on the bluetooth console and it worked.

I am using a nokia 6680. I've no idea why it doesn't work for you, since both 6680 and 6630 have python for s60 2nd Edition FP2