I am writing a program in Python to run on a Raspberry Pi in order to control my Wurlitzer jukebox. The program current accepts the codes for "record selection" (A1, B1, C4, etc.), add those codes to a playlist, and executes the list. My issue is that once a song starts, I would like to be able to press a button ("Y" in the current code) to skip the currently playing song. I can't get this to work.
If I use "player.next()" I get an error: 'MediaPlayer' object has no attribute 'next'.
I tried to stop the player and restart it (thinking it would pick up the next song in the Playlist. This doesn't even stop the player.
I do not want to use subprocess if I can avoid it. I'd like to figure out a way within Python to do the skipping. How would one accomplish this?
import os, sys, csv, vlc, time, threading
from pynput.keyboard import Key, Listener
DefaultUSBPath="/media/pi"
PlayHistory="PlayHistory.csv"
#
# Declare variables
#
USBDrive = None
Action = None
Playlist = []
SelectionCount = []
Sel_char = None
#
# Find the USB Drive
#
for item in os.listdir(DefaultUSBPath):
if os.path.isdir(os.path.join(DefaultUSBPath, item)):
if USBDrive is None:
USBDrive = os.path.join(DefaultUSBPath, item)
else:
USBDrive = USBDrive + ";" + os.path.join(DefaultUSBPath, item)
if USBDrive is None:
print ("Error(0) - No USB Drive detected")
sys.exit()
elif ";" in USBDrive:
print ("Error(1) - More than one USB Drive detected.")
sys.exit()
#
# Adding to playlist - Returns directory contents and adds to playlist
#
def addplaylist(track):
list = None
if os.path.isdir(os.path.join(USBDrive, track)):
files = [f for f in os.listdir(os.path.join(USBDrive, track)) if os.path.isfile(os.path.join(USBDrive, track, f))]
for f in files:
if list is None:
list = os.path.join(USBDrive, track, f)
else:
list = list + ";" + os.path.join(USBDrive, track, f)
else:
print ("Error(2) - Selection is invalid")
if list is not None:
if ";" in list:
list = list.split(";")
else:
print ("Error(3) - Selection has no media")
return list
#
# MediaPlayer function
#
def MusicPlayer(P):
global Playlist, player
while len(Playlist) > 0:
song=Playlist.pop(0)
print("Song: ")
print(song)
player=vlc.MediaPlayer(song)
player.play()
#
# Define keyboard actions
#
def on_press(key):
global Action, Playlist, player
try:
Sel_char = int(key.char)
except:
try:
Sel_char = str(key.char)
Sel_char = Sel_char.upper()
except:
Sel_char = None
if Sel_char == "Z":
return False
elif Sel_char == "Y":
print("Skip")
#player.next() This line causes 'MediaPlayer' object has no attribute 'next'
time.sleep(1)
MusicPlayer(Playlist)
elif type(Sel_char) == str:
Action = Sel_char
elif type(Sel_char) == int:
Action = Action + str(Sel_char)
print("Action: " + Action)
Plist = addplaylist(Action)
if Plist is not None:
print("Added to playlist")
Playlist.append(Plist)
print(Plist)
MusicPlayer(Playlist)
else:
pass
#
# Read keyboard input
#
with Listener(on_press=on_press) as listener:
listener.join()
print ("")
print ("Have a nice day!")
print ("")
sys.exit()
The way you have it coded, I expect you'd have to stop it, remove the current media from the list, then re-start it.
However you may be better off running with a media_list_player, see below for a bare bones version. Note, I'm on Linux and had to hack some code to get the key input, rather than using a specific library or spend time on it, but it should give you enough to work with.
Edit
I apologise, there is a much simpler method when using a media_list_player, although if you want finer control you should use the media_list_player where you control the list's index or for full control use a media_player_new() but that's beyond the scope of this question. (I'll leave the original answer below this code, as it may be useful)
import vlc
import time
## pinched from vlc for keyboard input
import termios
import tty
import sys
mymedia = ["vp.mp3","vp1.mp3","happy.mp3","V1.mp4"]
def getch(): # getchar(), getc(stdin) #PYCHOK flake
fd = sys.stdin.fileno()
old = termios.tcgetattr(fd)
try:
tty.setraw(fd)
ch = sys.stdin.read(1)
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old)
return ch
## end pinched code
def jukebox():
player.play_item_at_index(0)
while True:
time.sleep(0.25)
k = getch()
if k == "n": #Next
player.next()
if k == "p": #Previous
player.previous()
if k == " ": #Pause
player.pause()
if k == "q": #Quit
player.stop()
return True
player.next()
vlc_instance = vlc.Instance('--no-xlib --quiet ') # no-xlib for linux and quiet don't complain
player = vlc_instance.media_list_player_new()
Media = vlc_instance.media_list_new(mymedia)
player.set_media_list(Media)
print("Welcome to Jukebox")
print("Options - space = Play/Pause, n = Next, p = Previous, q = Quit")
print("Media",mymedia)
jukebox()
Original code
import vlc
import time
## pinched from vlc for keyboard input
import termios
import tty
import sys
def getch(): # getchar(), getc(stdin) #PYCHOK flake
fd = sys.stdin.fileno()
old = termios.tcgetattr(fd)
try:
tty.setraw(fd)
ch = sys.stdin.read(1)
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old)
return ch
## end pinched code
vlc_instance = vlc.Instance()
player = vlc_instance.media_list_player_new()
mymedia = ["vp.mp3","vp1.mp3","happy.mp3"]
Media = vlc_instance.media_list_new(mymedia)
player.set_media_list(Media)
for index, name in enumerate(mymedia):
print("Playing:",name)
player.play_item_at_index(index)
time.sleep(1)
while player.get_state() != 6:
time.sleep(1)
k = getch()
if k == "y":
player.stop()
break