#!/usr/bin/python
"""
author email: anton.vredegoor@gmail.com
last edit: June 9, 2013
license: GPL
this uses vlc.py to stream an mp3 file,
for example to some addresses on a lan.
installing:
------------
-first create a file named "vlc2all.m3u" with the
following content:
#EXTM3U
rtp://@:50004
-copy vlc2all.m3u to some computer
-modify this script to include the computer's ip address,
it's in the 'destinations' tuple at the end of this script
running:
------------
-start the script:
>>> python vlc-stream.py some.mp3
-a tkinter window appears, click 'go' to start streaming
-listen to the stream by opening vlc2all.m3u on the
receiving computer (of course open it with vlc!)
"""
from Tkinter import *
import vlc
import os
import sys
class App:
def __init__(self,master,instream,destinations):
self.master=master
self.instream = instream
self.destinations = destinations
self.initialized,self.playing,self.changed,self.newpos = False,False,False,0
self.initialize_player()
self.master.bind("<Escape>", lambda _ : self.master.destroy())
self.container=Frame()
self.container.pack(fill=BOTH,expand=YES)
self.slider = Scale(self.container, from_= 0, to=100, orient=HORIZONTAL,\
command=lambda _: self.setpos())
self.slider.pack(side=BOTTOM,fill=BOTH,expand=YES)
self.urlbar = Text(self.container)
self.urlbar.pack(side=LEFT,fill=BOTH,expand=YES)
self.urlbar.delete(1.0,END)
self.urlbar.insert(END, url)
self.button1=Button(self.container, text='GO', command= self.playurl, width=80)
self.button1.pack(side=RIGHT,fill=BOTH,expand=YES);
def initialize_player(self):
"initialize a vlc player which plays locally and stream to the lan"
self.inst = vlc.Instance()
self.p = self.inst.media_player_new()
cmd = [self.instream]
s = "sout=#duplicate{"
for ip,port in self.destinations:
s+="dst=rtp{dst=%s,port=%s}," %(ip,port)
s = s[:-1]
s+="}"
cmd.append(s)
cmd.append("no-sout-rtp-sap")
cmd.append("no-sout-standard-sap")
cmd.append("sout-keep")
self.med=self.inst.media_new(*cmd)
self.med.get_mrl()
self.p.set_media(self.med)
self.initialized = True
def setpos(self):
self.oldpos = self.newpos
self.newpos = self.slider.get()
#a bit of a hack, but this should prevent slider callbacks
#not involving a mouse adjustment messing up the sound position
if self.newpos-self.oldpos <> 1:
self.changed = True
def poll(self):
#song ended?
if self.p.get_state()==6:
self.pauseurl()
self.p.set_media(self.med)
#slider adjusted?
if self.changed:
self.p.set_position(self.newpos/100.0)
self.changed=False
pos = self.p.get_position()
self.slider.set(pos*100.0)
self.master.after(100,self.poll)
def pauseurl(self):
if self.playing:
self.p.set_pause(1)
self.playing = False
self.button1.configure(text = "GO",command = self.playurl)
def playurl(self):
if not self.playing:
self.p.play()
self.playing = True
self.button1.configure(text = "PAUSE",command = self.pauseurl)
self.poll()
if __name__=='__main__':
if len(sys.argv)>1:
fn = sys.argv[1]
else:
fn = "00000000.mp3"
outport = 50004
url = "file://"+os.path.abspath(fn)
destinations = ("192.168.123.122",outport),("192.168.123.125",outport),\
("192.168.123.188",outport),("192.168.123.190",outport)
root=Tk()
root.geometry("680x80")
root.title("vlc-stream")
a = App(root,url,destinations)
root.mainloop()
