like spotify

import pafy
import subprocess as sp
import numpy as np
import sounddevice as sd
import time
# from PyQt4 import QtCore, QtGui
# from song import Ui_MainWindow




AUDIO_ARRAY = []
FFMPEG_BIN = "ffmpeg.exe"

# class MyForm(QtGui.QMainWindow):
#     def __init__(self, parent=None):
#         QtGui.QWidget.__init__(self, parent)
#         self.ui = Ui_MainWindow()
#         self.ui.setupUi(self)

def donwload_song(bestaudio):
    try:
        print "Donwloading Audio...."
        bestaudio.download()
        print "Finished Downloading"
    except:
        print "Finished Downloading"
        pass


def play_music():
    fs = 44100
    sd.play(AUDIO_ARRAY[:2000000], fs)
    sd.play(AUDIO_ARRAY[2000000:4000000])
    print(len(AUDIO_ARRAY))
    while True:
        pass


def read_audio_file(file_name):
    global AUDIO_ARRAY
    print "Reading File..."  # on Windows
    command = [FFMPEG_BIN,
               '-i', file_name,
               '-f', 's16le',
               '-acodec', 'pcm_s16le',
               '-ar', '44100',  # ouput will have 44100 Hz
               '-ac', '2',  # stereo (set to '1' for mono)
               '-']
    pipe = sp.Popen(command, stdout=sp.PIPE, bufsize=10 ** 8)
    raw_audio = pipe.stdout.read()
    # Reorganize raw_audio as a Numpy array with two-columns (1 per channel)
    audio_array = np.fromstring(raw_audio, dtype="int16")
    AUDIO_ARRAY = audio_array.reshape((len(audio_array) / 2, 2))


def main():
    # app = QtGui.QApplication(sys.argv)
    # myapp = MyForm()
    # myapp.show()
    #sys.exit(app.exec_())
    start = time.time()
    url = "https://www.youtube.com/watch?v=WCtUCW1sDqs"
    video = pafy.new(url)
    bestaudio = video.getbestaudio()
    donwload_song(bestaudio)
    read_audio_file(video.title+"."+bestaudio.extension)
    end = time.time()
    print end - start
    play_music()


if __name__ == '__main__':
    main()