Switched to sox to generate phone sounds

phoneinterface.py

@@ -1,12 +1,7 @@
 import linphone
 import time
 import threading
-
-DIAL_TONE_FILE = 'freizeichen.wav'
-DIAL_TONE_LEN = 5
-BUSY_TONE_FILE = 'besetztzeichen.wav'
-BUSY_TONE_LEN = 0.96
-RINGBACK_TONE = 'weckzeichen.wav'
+import subprocess
 
 class PhoneEvent(object):
     RegInProgress,\
@@ -37,9 +32,11 @@ class PhoneInterface(object):
 
         self.__core = linphone.Core.new(cbs, config, roconfig)
 
+        self.__audioproc = None
+
         # Set default parameters overriding the ones from the given config file
         self.__core.set_user_agent('FeTAp 615', '0.1')
-        self.__core.ringback = RINGBACK_TONE
+        self.__core.ringback = ''
         self.__core.max_calls = 1
         self.__core.set_call_error_tone(linphone.Reason.Busy, '')
         self.__core.disable_chat(linphone.Reason.None)
@@ -122,34 +119,27 @@ class PhoneInterface(object):
     def end_call(self):
         self.__core.terminate_call(self.__core.current_call)
 
-    def __play_loop_thread(self, filename, length, continous):
-        self.__core.play_local(filename)
-        # Start replay of file 500ms before the old playing will end
-        # to get more or less continous play
-        i = 50 if continous else 0
-        while self.__playing and self.__running:
-            # TODO: Schoener?
-            if i == length * 100:
-                self.__core.play_local(filename)
-                i = 0
-            time.sleep(0.01)
-            i += 1
-        self.__core.stop_ringing()
-
-    def __play_file(self, filename, length, continous=False):
-        print 'Playing file:', filename
-        self.__playing = True
-        t = threading.Thread(target=self.__play_loop_thread, args=(filename, length, continous))
-        t.start()
-
     def play_dial_tone(self):
-        self.__play_file(DIAL_TONE_FILE, DIAL_TONE_LEN, True)
+        self.stop_playing()
+        self.__audioproc = subprocess.Popen(['play', '-nq', 'synth', 'sine', '425'],
+                                            env = {'AUDIODRIVER': 'alsa',
+                                                   'AUDIODEV': 'default:CARD=Device'})
+
+    def play_ringback_tone(self):
+        self.stop_playing()
+        self.__audioproc = subprocess.Popen(['play', '-nq', 'synth', '1', 'sine', '425', 'pad', '4@1', 'repeat', '1000'],
+                                            env = {'AUDIODRIVER': 'alsa',
+                                                   'AUDIODEV': 'default:CARD=Device'})
 
     def play_busy_tone(self):
-        self.__play_file(BUSY_TONE_FILE, BUSY_TONE_LEN)
+        self.stop_playing()
+        self.__audioproc = subprocess.Popen(['play', '-nq', 'synth', '0.48', 'sine', '425', 'pad', '0.48@0.48', 'repeat', '1000'],
+                                            env = {'AUDIODRIVER': 'alsa',
+                                                   'AUDIODEV': 'default:CARD=Device'})
 
     def stop_playing(self):
-        self.__playing = False
+        if self.__audioproc is not None:
+            self.__audioproc.terminate()
 
 if __name__ == '__main__':
     def event_cb(evt):