How to create a mp3 player in Maemo

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15 Sep
2009

Article Review by nayan_trivedi (20090915)

This article is one of the simple article of Maemo applications in python.Code snippet shown in this article.This article contains multimedia in This application.

The simple player using python for Maemo is shown hear. Maemo multimedia applications - Part II

This article is very useful for the Maemo Multimedia developer.This may be useful for beginner of Meamo application developer.

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Created: User:Raulherbster (23 Sep 2008)

Last edited: lpvalente (23 Feb 2013)

This source code shows how to create a simple mp3 player in Maemo platform.

#!/usr/bin/python
import pygst
pygst.require("0.10")
import gst
import pygtk
import gtk
import hildon
 
class Player(hildon.Program):
    def __init__(self):
	hildon.Program.__init__(self)
        self.window = hildon.Window()
        self.window.connect("delete_event", gtk.main_quit)
        self.window.set_title("Player")  
        self.add_window(self.window)
 
	self.create_interface()
	self.create_pipeline()
 
	self.window.add(self.table)
	self.window.show_all()
 
    def create_interface(self):
	self.table = gtk.Table(2,2,True)
	buttonPlay = gtk.Button("Play")	
	buttonPause = gtk.Button("Pause")	
	buttonStop = gtk.Button("Stop")
	buttonOpen = gtk.Button("Open")
 
	buttonPlay.connect("clicked",self.OnPlay)
	buttonPause.connect("clicked",self.OnPause)
	buttonStop.connect("clicked",self.OnStop)
	buttonOpen.connect("clicked",self.OnOpen)
 
	self.table.attach(buttonPlay,0,1,0,1)
	self.table.attach(buttonPause,1,2,0,1)
	self.table.attach(buttonStop,0,1,1,2)
	self.table.attach(buttonOpen,1,2,1,2)
 
    def create_pipeline(self):
        # Create GStreamer bits and bobs
 
        self.pipeline = gst.Pipeline("mypipeline")
 
        self.audiosrc = gst.element_factory_make("gnomevfssrc","source")
        self.pipeline.add(self.audiosrc)
 
        self.audiosink = gst.element_factory_make("dspmp3sink", "sink")
        self.pipeline.add(self.audiosink)
 
        self.audiosrc.link(self.audiosink)
 
    def OnPlay(self, widget):
        self.pipeline.set_state(gst.STATE_PLAYING)
 
    def OnPause(self, widget):
        self.pipeline.set_state(gst.STATE_PAUSED)
 
    def OnStop(self, widget):
	if self.pipeline.get_state() != gst.STATE_PAUSED:
		self.pipeline.set_state(gst.STATE_PAUSED)
	if self.pipeline.get_state() != gst.STATE_NULL:
        	self.pipeline.set_state(gst.STATE_NULL)
 
    def OnOpen(self, widget): 
	dialog = hildon.FileChooserDialog(self.window,gtk.FILE_CHOOSER_ACTION_OPEN)
        response = dialog.run()
        dialog.hide()
        file_name = selector.get_filename()
        if response == gtk.RESPONSE_OK:
                self.audiosrc.set_property("location", file_name)       
                self.pipeline.set_state(gst.STATE_READY) 
 
start=Player()
gtk.main()