class Player:
def __init__(self):
self.ui = Ui()
self.datatype = 'songs'
self.popen_handler = None
# flag stop, prevent thread start
self.playing_flag = False
self.pause_flag = False
self.songs = []
self.idx = 0
self.next_music_p=False #播放下一曲标志
self.stop_sub=False #结束自动播放下一曲,手动选择播放``
self.mplayer_controller=os.path.join(tempfile.mkdtemp(),'mplayer_controller')
os.mkfifo(self.mplayer_controller) #临时文件``
def return_idx(self):
return self.idx,self.playing_flag#,self.next_music_p
def popen_recall(self, onExit, popenArgs):
"""
Runs the given args in a subprocess.Popen, and then calls the function
onExit when the subprocess completes.
onExit is a callable object, and popenArgs is a lists/tuple of args that
would give to subprocess.Popen.
"""
def runInThread(onExit, popenArgs):
self.ui.notifySend(name=self.songs[self.idx]['song_name'],artist=self.songs[self.idx]['artist'])
play_s='mplayer -quiet -slave -input file={fifo} \'{song_url}\' 2>&1'
self.popen_handler = subprocess.Popen(play_s.format(fifo=self.mplayer_controller,song_url=popenArgs),shell=True,stdin=subprocess.PIPE,stdout=subprocess.PIPE,bufsize=1)
self.popen_handler.wait()
if self.playing_flag and self.stop_sub==False:
self.idx = carousel(0, len(self.songs)-1, self.idx+1 )
#self.next_music_p= not self.next_music_p #对下一曲标志取反
onExit()
else:
self.stop_sub=False
return
thread = threading.Thread(target=runInThread, args=(onExit, popenArgs))
thread.start()
# returns immediately after the thread starts
return thread
def recall(self):
self.playing_flag = True
item = self.songs[ self.idx ]
self.ui.build_playinfo(item['song_name'], item['artist'], item['album_name'])
self.popen_recall(self.recall, item['mp3_url'])
def play(self, datatype, songs, idx):
# if same playlists && idx --> same song :: pause/resume it
self.datatype = datatype
if datatype == 'songs' or datatype == 'djchannels':
if idx == self.idx and songs == self.songs:
if self.pause_flag:
self.resume()
else:
self.pause()
else:
if datatype == 'songs' or datatype == 'djchannels':
self.songs = songs
self.idx = idx
# if it's playing
if self.playing_flag:
self.switch()
# start new play
else:
self.recall()
# if current menu is not song, pause/resume
else:
if self.playing_flag:
if self.pause_flag:
self.resume()
else:
self.pause()
else:
pass
# play another
def switch(self):
self.stop()
# wait process be killed
time.sleep(0.01)
self.recall()
def stop(self):
if self.playing_flag and self.popen_handler:
self.playing_flag = False
self.stop_sub=True
subprocess.Popen('echo "quit" > {fifo}'.format(fifo=self.mplayer_controller),shell=True,stdin=subprocess.PIPE).wait()
#self.popen_handler.kill()
def pause(self):
self.pause_flag = True
#os.kill(self.popen_handler.pid, signal.SIGSTOP)
subprocess.Popen('echo "pause" > {fifo}'.format(fifo=self.mplayer_controller),shell=True,stdin=subprocess.PIPE)
item = self.songs[ self.idx ]
self.ui.build_playinfo(item['song_name'], item['artist'], item['album_name'], pause=True)
self.ui.notifySend(name=item['song_name'],artist=item['artist'],other='暂停-> ')
def resume(self):
self.pause_flag = False
subprocess.Popen('echo "pause" > {fifo}'.format(fifo=self.mplayer_controller),shell=True,stdin=subprocess.PIPE)
#os.kill(self.popen_handler.pid, signal.SIGCONT)
item = self.songs[ self.idx ]
self.ui.build_playinfo(item['song_name'], item['artist'], item['album_name'])
self.ui.notifySend(name=item['song_name'],artist=item['artist'],other='播放-> ')
def next(self):
self.stop()
self.idx = carousel(0, len(self.songs)-1, self.idx+1 )
self.recall()
def prev(self):
self.stop()
self.idx = carousel(0, len(self.songs)-1, self.idx-1 )
self.recall()
def get_time_pos(self): # 音乐的当前位置用秒表示，采用浮点数。
subprocess.Popen('echo "get_time_pos" > {fifo}'.format(fifo=self.mplayer_controller),shell=True,stdin=subprocess.PIPE).wait()
time_now=self.popen_handler.stdout.readline().decode('utf-8')
i=0
while True:
if 'ANS_TIME_POSITION=' in time_now:
break
elif i>20:
subprocess.Popen('echo "get_time_pos" > {fifo}'.format(fifo=self.mplayer_controller),shell=True,stdin=subprocess.PIPE).wait()
i=0
else:
i=i+1
time_now=self.popen_handler.stdout.readline()##.decode('utf-8')
return time_now.split('=')[1].strip('\n')
def get_time_length(self):
subprocess.Popen('echo "get_time_length" > {fifo}'.format(fifo=self.mplayer_controller),shell=True).wait()
time_length=self.popen_handler.stdout.readline()#.decode('utf-8')
i=0
while True:
if 'ANS_LENGTH=' in time_length:
break
elif i>20:
subprocess.Popen('echo "get_time_length" > {fifo}'.format(fifo=self.mplayer_controller),shell=True).wait()
i=0
else:
i=i+1
time_length=self.popen_handler.stdout.readline().decode('utf-8')
return time_length.split('=')[1].strip('\n')
