Ich habe vor mit mit meinen Raspberry einen kleinen Musikplayer mit Display zu bauen und wollte die nötige Software mit Python realisieren.
Ich habe als Anbindung MPlayer gedacht und habe den Code von der MPlayer-Anbindung den ich hatte von meinen anderen Projekt für GTK genommen.
Ich habe versucht es umzuschreiben so das es normal verwendbar ist, aber jetzt gibt es kein Ton mehr von sich.
Könnt ihr mir Helfen? Was kann ich als alternative für GObjekt nehmen?
Code: Alles auswählen
#!/usr/bin/env python
from gi.repository import GObject
import os
import fcntl
import subprocess
import time
GObject.threads_init()
class MPlayer():
"""Control for mplayer"""
mplayerIn, mplayerOut = None, None
eofHandler, statusQuery = 0, 0
paused = False
def __init__(self, display):
self.display = display
def play(self, target):
"""Play a file and create a pipe"""
cmd = 'mplayer -slave '
cmd = cmd.split()
cmd.append(target)
pipe = subprocess.Popen(cmd, shell=False, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
(self.mplayerIn, self.mplayerOut) = (pipe.stdin, pipe.stdout)
fcntl.fcntl(self.mplayerOut, fcntl.F_SETFL, os.O_NONBLOCK)
#~Stop all
self.stopStatusQuery()
self.stopEofHandler()
#~Start
self.startEofHandler()
self.startStatusQuery()
def command_to_player(self, command):
"""Send a command to the Player"""
if not self.mplayerIn:
return
try:
# Write the command to Pipe
self.mplayerIn.write(command + "\n")
self.mplayerIn.flush()
except StandardError:
return
def pause(self):
"""Rest for one song/video"""
if not self.mplayerIn:
return
if self.paused:
self.startStatusQuery()
self.paused = False
else:
self.stopStatusQuery()
self.paused = True
self.command_to_player("pause")
def seek(self, amount, mode=0):
""" Seek"""
self.command_to_player("seek " + str(amount) + " " + str(mode))
def volume(self, amount):
"""Set Volume"""
self.command_to_player("volume " + str(amount))
def close(self):
"""Close the player"""
if self.paused:
self.pause()
self.stopEofHandler()
self.command_to_player("quit")
try:
self.mplayerIn.close()
self.mplayerOut.close()
except StandardError:
pass
self.mplayerIn, self.mplayerOut = None, None
def handleEof(self, source, condition):
self.stopStatusQuery()
self.mplayerIn, self.mplayerOut = None, None
return False
def queryStatus(self):
self.command_to_player("get_percent_pos")
self.command_to_player("get_time_pos")
#self.command_to_player("get_lenght")
time.sleep(0.05)
line, percent, seconds, lenght = None, -1, -1, -1
while True:
try:
line = self.mplayerOut.readline()
except StandardError:
break
if not line:
break
print line
if line.startswith("ANS_PERCENT_POSITION"):
percent = int(line.replace("ANS_PERCENT_POSITION=", ""))
if line.startswith("ANS_TIME_POSITION"):
seconds = float(line.replace("ANS_TIME_POSITION=", ""))
if line.startswith("ICY Info: StreamTitle="):
pass
print seconds
#statusbar = ''
#
#16 * ((percent / 100) / lenght)
#self.display.message("{0}\n{1}".format(self.display.get_title(), statusbar))
return True
def startStatusQuery(self):
self.statusQuery = GObject.timeout_add(1000, self.queryStatus)
def stopStatusQuery(self):
if self.statusQuery:
GObject.source_remove(self.statusQuery)
self.statusQuery = 0
def startEofHandler(self):
self.eofHandler = GObject.io_add_watch(self.mplayerOut, GObject.IO_HUP, self.handleEof)
def stopEofHandler(self):
if self.eofHandler:
GObject.source_remove(self.eofHandler)
self.eofHandler = 0
mplayer = MPlayer("")
mplayer.play("/home/jtschoch/Musik/Andere_Daten/retroshare.wav")
Code: Alles auswählen
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
MPlayer interrupted by signal 13 in module: unknown
MPlayer interrupted by signal 13 in module: demux_open