+ def imbeethovenbitch(self):
+
+
+ ### USUAL SETUP STUFF ######
+ self.client.serInit()
+ self.spitSetup(500)
+ self.addFilter([513, 513, 513,513])
+ SIDlow = (513 & 0x07) << 5; # get SID bits 2:0, rotate them to bits 7:5
+ SIDhigh = (513 >> 3) & 0xFF; # get SID bits 10:3, rotate them to bits 7:0
+
+ #clear buffers
+ self.client.rxpacket()
+ self.client.rxpacket()
+ self.client.rxpacket()
+
+
+ packet = None;
+
+ #catch a packet to mutate
+ while (packet == None):
+ packet=self.client.rxpacket();
+ newPacket = [SIDhigh, SIDlow, 0x00,0x00, # pad out EID regs
+ 0x08, # bit 6 must be set to 0 for data frame (1 for RTR)
+ # lower nibble is DLC
+ ord(packet[5]),ord(packet[6]),ord(packet[7]),ord(packet[8]),ord(packet[9]),ord(packet[10]),ord(packet[11]),ord(packet[12])]
+
+
+ # NOW THE FUN STUFF!!!!!
+
+ music = wave.open("../../contrib/ted/beethovensfifth.wav.wav", 'r');
+ print "number of frames: %d " %music.getnframes()
+ print "number of channels: %d " %music.getnchannels()
+ print "sample width: %d " %music.getsampwidth()
+ print "framerate: %d " %music.getframerate()
+ print "compression: %s " %music.getcompname()
+
+
+ numFramesToRead = music.getframerate()*.05 # grab .1s of audio
+
+ while(1):
+
+ runningSum = 0
+
+ sample = music.readframes(int(numFramesToRead)) # grab .1s of audio
+
+ length = len(sample)
+
+ for i in range(0, length,4):
+ runningSum += ord(sample[i]) #average the dual-channel
+ runningSum += ord(sample[i+2])
+
+ avg = math.fabs(runningSum/(length /2) -127) # we used 2 of every 4 frames, so divide length by 2
+ if( sampNum > 0):
+ avg = (avg+avgprev)/2
+
+ val = int(avg*15 + 40) # normalize to speedometer range of values
+
+ print "speedometerVal = %f " %val;
+ print "speed = %f" %(1.617*val-63.5) # speed we're trying to display
+
+ if (val > 255): # ensure we don't run off acceptable range
+ val = 255
+ elif (val < 0):
+ val = 0
+
+ newPacket[9] = int(val) # write it to the packet
+
+ # load new packet into TXB0 and check time
+ self.multiPacketSpit(packet0=newPacket, packet0rts=True)
+ starttime = time.time()
+
+ # spit new value for 1 second
+ while (time.time()-starttime < .1):
+ self.multiPacketSpit(packet0rts=True)
+
+# read in 26 frames
+# average them
+# normalize to our range of values (conversion 1.6167*x-63.5
+# x --> 0 to 120
+
+#sample width = 2??
+#number of frames: 7133184
+#number of channels: 2
+#sample width: 2 --> 2 bytes per sample
+#framerate: 44100
+
+ def engineDiagnostic(self, data):
+
+ self.addFilter([513, 513, 513,513])
+
+ startTime = tT.time()
+ while((tT.time() - startTime ) < 15):
+ packet = None;
+
+ #catch a packet to decode
+ while (packet == None):
+ packet=self.client.rxpacket();
+
+ rpm = 64.5 * ord(packet[5]) - 61.88
+ mph = 1.617 * ord(packet[9]) - 63.5
+
+ data.put("Engine RPM: %d Current Speed: %d mph"%(rpm, mph))
+ time.sleep(.5)
+
+