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maemo:shared_code [2011/08/18 19:38]
japskua [Template] 		maemo:shared_code [2011/08/18 23:19] (current)
grp4
Line 4: Line 4:
  
 So, add the codes underneath. You can copy the template underneath and just add to the line: So, add the codes underneath. You can copy the template underneath and just add to the line:
 +
 +===== Tutorial for PyGtk =====
 +http://www.pygtk.org/pygtk2tutorial/
 +
 +though not every function in pygtk library does work in maemo as developer were too lazy and didn't import them. like no scrollbar or slidebar exist in maemo.
 +
 +some examples
 +<code python examples.py>
 +            def main(self):
 +        # place where fin info about pygtk http://www.pygtk.org/pygtk2tutorial/
 +        win = hildon.StackableWindow()
 +     
 +        # Create and pack labels
 +        vbox = gtk.VBox(False, 10)
 +        hbox = gtk.HBox(False, 10)
 +     
 +        #interface.. buttons, labels ,... etc
 +        labelHeader = gtk.Label("MeHear")
 +        labelSubHeader = gtk.Label("voice amplifier")
 +     
 +#        buttonGTK1 = gtk.Button("Record")
 +#        buttonGTK1.connect("clicked", self.record_button_clicked, labelSubHeader)
 +     
 +        buttonGTK = gtk.ToggleButton("AMPlify")
 +        buttonGTK.connect("clicked", self.amplify_button_clicked, labelSubHeader)
 +        
 +        #a= gtk.CheckButton("check button 1")
 +        #hbox.pack_start(a, True, True, 0)
 +        
 +        #b= gtk.ToggleButton("check button 1")
 +        #hbox.pack_start(b, True, True, 0)
 +        
 +        #c = gtk.RadioButton(None, "radio button1")
 +        #hbox.pack_start(c, True, True, 0)
 +        
 +        #adjus = gtk.Adjustment(value=60, lower=0, upper=100, step_incr=1, page_incr=0, page_size=0)
 +        #d = gtk.SpinButton(adjustment= adjus, climb_rate=0.1, digits=5)
 +        #hbox.pack_start(d, True, True, 0)
 +        #hscrollbar = gtk.HSscrollbar(adjustment)
 +        
 +        #http://www.pygtk.org/pygtk2tutorial/sec-ComboWidget.html
 +        combo = gtk.Combo()
 +        combo.entry.set_text("text")
 +        slist = [ "String 1", "String 2", "String 3", "String 4" ]
 +        combo.set_popdown_strings(slist)
 +        hbox.pack_start(combo, True, True, 0)
 +        
 +        hbox.pack_start(buttonGTK, True, True, 0)
 +     
 +        vbox.pack_start(labelHeader, True, True, 0)
 +        vbox.pack_start(labelSubHeader, True, True, 0)
 +        vbox.pack_start(hbox, True, True, 0)
 +        
 +        
 +     
 +        # Add label's box to window
 +        win.add(vbox)
 +     
 +        win.connect("delete_event", gtk.main_quit)
 +     
 +        win.show_all()
 +     
 +        gtk.main()
 +</code>
 +
 +===== Software playtrought =====
 +
 +  * Group: Esa-Petri and Hilmi
 +  * Description: program to play voice from mic
 + 
 +
 +<code python MeHear.py>
 +from optparse import OptionParser
 +from time import sleep
 +
 +import sys, os
 +import pygtk, gtk, gobject 
 +import dbus
 +import gst
 +import pygst
 +import sys
 +import time
 +import gtk 
 +import hildon
 +
 +
 +class Record():
 +    mic = None
 +    
 +    def __init__(self, sink):
 +        """
 +        @summary: The Constructor class, that searches for the microphone on initialization
 +        """
 +        bus = dbus.SystemBus()
 +        hal_manager = bus.get_object("org.freedesktop.Hal",
 +                                     "/org/freedesktop/Hal/Manager")
 +        hal_manager = dbus.Interface(hal_manager, "org.freedesktop.Hal.Manager")
 + 
 +        print hal_manager
 +        devices = hal_manager.FindDeviceStringMatch("alsa.type", "capture")
 + 
 +        identifiers = []
 + 
 +        for dev in devices:
 +            device = bus.get_object("org.freedesktop.Hal", dev)
 + 
 +            card = device.GetAllProperties(dbus_interface="org.freedesktop.Hal.Device")
 +            if card["alsa.card"] not in identifiers:
 +                print "%d. %s" % (card["alsa.card"], card["alsa.card_id"])
 +                identifiers.append(card["alsa.card"])
 + 
 +        self.mic = identifiers[0] 
 +        
 +        """
 +        @attention: this is important it initializes softfare playtrought (audioconvert is not nesesity)
 +        @summary: takes stream from mic to autosink
 +        """
 +        self.pipeline = gst.parse_launch("""alsasrc device=hw:%d  ! audioconvert ! autoaudiosink location=%s""" % (self.mic, sink))
 +                   
 +        
 +    def rec(self):
 +        """
 +        @summary: sets recording on
 +        """
 +        self.pipeline.set_state(gst.STATE_PLAYING)
 +        print ""
 +        print "recording started"
 +            
 +            
 +    def stoprec(self):    
 +        """
 +        @summary: sets recording off
 +        """  
 +        self.pipeline.set_state(gst.STATE_NULL)
 +        print ""
 +        print "recording, stoped"
 +        
 +        
 +class Prosesor():
 +    """
 +    @summary: Takes care of prossesing the sound
 +    """
 +    
 +    
 +    def __init__(self):
 +        volume=0
 +        gain =0
 +        CutThereshold=0
 +        
 +        
 +    def proses(self,volume, gain, comp):
 +        a=1
 +        
 +        
 +        
 +        
 +class player():
 +    def __init__(self):
 +        """
 +        @summary: player part
 +        """        
 +        self.player = gst.element_factory_make("playbin2", "player")
 +        fakesink = gst.element_factory_make("fakesink", "fakesink")
 +        self.player.set_property("video-sink", fakesink)
 +        
 +        audiosink = gst.element_factory_make("autoaudiosink", "audio-output")
 +        self.recorder=Record(audiosink)
 +        """
 +        @attention: next links raw data from mic to player mekanism of gstreamer 
 +        """
 +        self.player.set_property("audio-sink",audiosink)
 +        self.playmode = True
 +        
 +        bus = self.player.get_bus()
 +        bus.add_signal_watch()
 +        bus.connect("message", self.on_message)
 +        
 +        
 +
 +    def on_message(self, bus, message):
 +        t = message.type
 +        if t == gst.MESSAGE_EOS:
 +            self.player.set_state(gst.STATE_NULL)
 +            self.playmode = False
 +        elif t == gst.MESSAGE_ERROR:
 +            self.player.set_state(gst.STATE_NULL)
 +            err, debug = message.parse_error()
 +            print "Error: %s" % err, debug
 +            self.playmode = False
 +                
 +    def play(self):
 +        self.recorder.rec()
 +        self.player.set_state(gst.STATE_PLAYING)
 +        print "playing"
 +        
 +        
 +    def stop(self):
 +        #self.playmode = False
 +        self.player.set_state(gst.STATE_NULL)
 +        self.recorder.stoprec()
 +        print "stoped"
 +
 +
 +
 +
 +
 +class MeHear(hildon.Program):
 +    def __init__(self):
 +        self.pl= player()  
 +                       
 +        
 +    def amplify_button_clicked(self,button, label):   
 +        buttontext = button.get_label()
 +        text =  buttontext
 +        if text == "AMPlify" :
 +            label.set_text("")
 +            button.set_label("Stop")
 +            self.pl.play()
 +            print "play button pressed"
 +            
 +        if text == "Stop" :
 +            label.set_text("Stopped")
 +            button.set_label("AMPlify")
 +            self.pl.stop()
 +            print "stop button pressed"
 +            
 +        
 +            
 +    def main(self):
 +        win = hildon.StackableWindow()
 +     
 +        # Create and pack labels
 +        vbox = gtk.VBox(False, 10)
 +        hbox = gtk.HBox(False, 10)
 +     
 +        #interface.. buttons, labels ,... etc
 +        labelHeader = gtk.Label("Application header")
 +        labelSubHeader = gtk.Label("-")
 +     
 +#        buttonGTK1 = gtk.Button("Record")
 +#        buttonGTK1.connect("clicked", self.record_button_clicked, labelSubHeader)
 +     
 +        buttonGTK = gtk.Button("AMPlify")
 +        buttonGTK.connect("clicked", self.amplify_button_clicked, labelSubHeader)
 +     
 +#        hbox.pack_start(buttonGTK1, True, True, 0)
 +        hbox.pack_start(buttonGTK, True, True, 0)
 +     
 +        vbox.pack_start(labelHeader, True, True, 0)
 +        vbox.pack_start(labelSubHeader, True, True, 0)
 +        vbox.pack_start(hbox, True, True, 0)
 +        
 +        
 +     
 +        # Add label's box to window
 +        win.add(vbox)
 +     
 +        win.connect("delete_event", gtk.main_quit)
 +     
 +        win.show_all()
 +     
 +        gtk.main()
 +    
 +    
 +if __name__ == "__main__":  
 +    
 +    app = MeHear() 
 +    app.main()
 +</code>
 +
 +
  
 ===== Sending SMS ===== ===== Sending SMS =====