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music.py
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music.py
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#!/usr/bin/env python.
"""
888
888
888
88888b. .d88b. 88888b. .d88b. 888 888
888 "88b d88""88b 888 "88b d88""88b `Y8bd8P'
888 888 888 888 888 888 888 888 X88K
888 888 Y88..88P 888 d88P Y88..88P .d8""8b. http://nobox.io
888 888 "Y88P" 88888P" "Y88P" 888 888 http://github.com/noboxio
git config --global push.default matching
Author: Brian McGinnis and Patrick McGinnis
Date: 7/11/17
"""
import time
import os.path
from random import shuffle
import re
import glob
import vlc
import threading
class Song:
"""Song is an object that can play sound.
plays the fileLocation sound when asked to.
This currently uses the VLC library for python3
TODO: REWIND, FAST FORWARD, FAST, SLOW
"""
def __init__(self, file_location):
"""Create a Song object that requires a file name to be passed.
fileLocation -- the location of the wave file to be played
"""
# song is not playing
self.playing = False
# load the file into the vlc player
self._load_file(file_location)
name = os.path.basename(self.file_location)
self.name = name.split(",")[0]
def get_state(self):
"""Get the current state of the song.
retuens the current state of the player from the vlc class
"""
return(self.player.get_state())
def _load_file(self, file_location):
"""Load a single file and create a VLC player object.
file_location -- The relative path to the file to be played
"""
# if the file doesn't exist raise an exception
# TODO: change to pull all valid audio files for mplayer
if not os.path.isfile(file_location):
raise IOError("file:" + file_location + " does not exist")
self.file_location = None
else:
self.file_location = file_location
self.player = vlc.MediaPlayer(self.file_location)
def _log(self, message):
"""Print the log message with the object id.
message -- string that needs to be logged
"""
print("|" + str(self) + "| " + str(message))
def play(self):
"""Play the song file.
Play the song and wait for the song to end and return nothing
"""
if self.playing is False:
self.player.play()
self._log("playing")
self.playing = True
def stop(self):
"""Stop this playing song.
Stop this playing song immediately by terminating the process
and then return nothing
"""
self.playing = False
self.player.stop()
self._log("stop")
def pause(self):
"""Pause this song.
This will pause playing the song.
"""
if self.playing is True:
self.playing = False
self._log("paused")
else:
self.playing = True
self._log("un-paused")
self.player.pause()
def speed(self, speed):
"""Change the speed of the song.
This will change the speed of the song playing
Currently not implemented
speed -- the multiplier of the speed. 1 = normal
"""
self._log("speed is not supported yet.")
self._log("play " + str(self) + " at speed " + str(speed))
def seek(self, change):
"""Seek to change.
This will seek to a new point in the song
Currently not implemented
change -- the amount of change to occur in seconds
"""
self._log("seek is not supported yet.")
self._log("seek " + str(self) + " by seek " + str(change))
def slow(self):
"""Make this song slower.
Will make the song play slower
Currently not implemented
"""
self._log("slow is not supported yet.")
self._log("play slower")
self.speed(-10)
def fast(self):
"""Make this song faster.
This will make the song play faster
Currently not implemented
"""
self._log("fast is not supported yet.")
self._log("play faster")
self.speed(10)
def __str__(self):
"""Override the system string method.
Returns the file location
"""
return (self.name)
def __repr__(self):
"""Override the system repr method.
Returns the file location
"""
return (self.name)
def __eq__(self, other):
# first check to see if the other is a song object or a string
if isinstance(other, Song):
if self.name == other.name:
return True
else:
return False
elif isinstance(other, str):
if self.name == other:
return True
else:
return False
else:
raise ValueError("invalid object type for comparison")
def __dir__(self):
return(['play', 'stop', 'pause', 'speed', 'slow', 'fast'])
class MusicManager(threading.Thread):
"""MusicManager is basically a manager for the music objects.
it functions as a process so that the song can be started, stopped or
whatever whenever
"""
def __init__(self, tj=None):
"""Create a MusicManager type.
doesn't require a song to be passed any more.
"""
threading.Thread.__init__(self)
self.tj = tj
self.playlist = list()
self.now_playing = None
self.last_song = None
self.play_once = False
def _log(self, message):
"""Print the log message with the object id.
message -- string that needs to be logged
"""
print("|" + str(self) + "| " + str(message))
def run(self):
"""Run method to be run as thread."""
# Check to see if the song list is empty, if so then load the music
# from the music resources folder
if len(self.playlist) <= 0:
self.load_music()
while(True):
time.sleep(1)
if self.now_playing is not None:
state = self.now_playing.get_state()
if str(state) == "State.Ended":
self._log("song finished")
if self.play_once:
self.stop()
else:
self.next()
def load_music(self):
"""Load the songs that are in the resources/music folder.
Loads the music from the resources/music folder
"""
# TODO:change to pull all valid audio files for vlc?
files = glob.glob("./resources/music/*.mp3")
for f in files:
self.load_song(Song(f))
def load_song(self, song):
"""Load a song into the player.
song -- song object to be added to the player
TODO: CHECK THAT A SOUND OBJECT IS PASSED
"""
self.playlist.append(song)
self._log("SONG LOADED: " + str(song))
self.last_song = song
def add(self, song):
"""Alternate command for load_song.
song -- song object to be added to the player.
"""
self.load_song(song)
def shuffle(self):
"""Shuffle the list of music objects.
shuffles the list of music objects, it does not reset current playing.
"""
shuffle(self.playlist)
self.load_song(self.playlist.pop())
def play_song_name(self, song_name):
"""Play a song based on the song name.
Search the playlist for the song name and then play it.
"""
# first stop playing if anything is playing
self.stop()
for i in range(0, len(self.playlist)):
t = self.playlist[i]
if t.name == song_name:
t = self.playlist.pop(i)
self.playlist.insert(0, t)
break
self.play_once = True
self.play()
def play(self):
"""Play next song.
Plays the next song in the list of music, if no song is playing.
"""
# play next song if nothing is playing
if self.now_playing is None:
self.now_playing = self.playlist.pop(0)
self.now_playing.play()
else:
self.now_playing.play()
def stop(self):
"""Stop the song.
Stops the song that is currently playing.
"""
if self.now_playing is None:
self._log("Nothing to Stop")
else:
self.now_playing.stop()
self.playlist.insert(0, self.now_playing)
self.now_playing = None
def pause(self):
"""Pause the now_playing song.
Pauses the now_playing song.
"""
if self.now_playing is None:
self._log("Nothing to Pause")
else:
self.now_playing.pause()
def next(self):
"""Play next song.
Plays the next song in the list.
"""
self.now_playing.stop()
self.playlist.append(self.now_playing)
# check to see if it is the last song,
# if so say so otherwise play the next song
if self.now_playing == self.last_song:
self._log("all songs in playlist played. press play again")
self.now_playing = None
else:
self.now_playing = None
self.play()
def previous(self):
"""Play previous song.
Plays the previous song in the list.
"""
self.now_playing.stop()
self.playlist.insert(0, self.now_playing)
self.now_playing = self.playlist.pop()
self.now_playing.play()
# self.playlist.
def get_playlist(self):
"""Get playlist.
Returns the list of songs in the playlist.
"""
for i in self.playlist:
print(i)
#return(self.playlist)
def say_playlist(self):
if self.tj is not None:
self.tj.watsonServices.tts.speak(self.get_playlist())
# this needs to interpret commands JUST for the music manager
def execute_command(self, command):
"""Execute a command in text form."""
self._log("music execute method: " + command)
# first check to see if the command is a manager command
# take the command passed and just pull the method name, basically
# remove the (). ex. play() --> play | load(something) --> load
# generate a regex
regex = re.compile(r"^\w+") # selects just the first word
command_method = regex.match(command).group()
self._log("command_method: " + command_method)
# check to see if the command is in the managergit
# config --global push.default matching
if command_method in dir(self):
# matching command was foudn
self._log("matching command found")
self._log("self." + command)
eval("self." + command)
else:
self._log("no matching command found in MusicManager")
if self.now_playing is None:
self._log("MUSIC MANAGER: no song is currently playing")
else:
eval("self.now_playing." + command)
def __dir__(self):
return(['play', 'stop', 'get_playlist', 'load_music', 'play_song_name', 'say_playlist', 'next', 'previous', 'pause', 'shuffle'])