树莓派的python中的mp3音乐循环
树莓派的python中的mp3音乐循环
提问于 2018-08-20 05:25:53
我是python和这个论坛的新手，但我有一个小问题，也许有人能帮上忙？我正在为一个慈善活动创建一个场景，在那里我想让我的pi控制气动公羊、音乐和其他电子设备，比如马达。
我有音乐播放，这将被一个开关/按钮的操作中断，这将启动电子和机械的事件序列，我的问题是有一个mp3文件在开始时播放，同时等待GPIO输入中断mp3，这是很好的，除非没有输入，在这种情况下，当mp3文件完成它只是坐在那里等待GPIO输入。
我想让它循环mp3文件，这样它就不会只是静静地等待，任何帮助都将不胜感激？该文件是第一个mp3文件，名为"Noddy“
try:
count=10
while (count>0):
print 'the count is:', count
os.system('mpg123 -q Make\ Way\ for\ Noddy.mp3 &')
GPIO.wait_for_edge(21, GPIO.FALLING)
subprocess.call(['killall', 'mpg123'])
print "\nFalling edge detected. Now your program can continue with"
print "whatever was waiting for a button press."
# gpio 20 to open and close car doors while lightshow is running
# GPIO.output(20, 0)
red_led.blink(5, 5, 5)
subprocess.call("sudo python synchronized_lights.py --
file=/home/pi/lightshowpi/music/sample/Happy\ Birthday\ Emma.mp3",
shell=True)
# gpio 20 to stop open and close of car doors
# GPIO.output(20, 1)
os.system('mpg123 -q Make\ Way\ for\ Noddy.mp3 &')
GPIO.wait_for_edge(21, GPIO.FALLING)
subprocess.call(['killall', 'mpg123'])
print "\nFalling edge detected. Now your program can continue with"
print "whatever was waiting for a button press."
# gpio 20 to open and close car doors while lightshow is running
GPIO.output(20, 0)
red_led.blink(5, 5, 5)
subprocess.call("sudo python synchronized_lights.py --
file=/home/pi/lightshowpi/music/sample/Happy\ Birthday\ Lucy.mp3",
shell=True)
# gpio 20 to stop open and close of car doors
GPIO.output(20, 1)
count= count-1
except KeyboardInterrupt:
GPIO.cleanup() # clean up GPIO on CTRL+C exit
GPIO.cleanup() # clean up GPIO on normal exit回答 1
Stack Overflow用户
发布于 2018-08-20 05:46:25
你可以使用PyGame轻松循环播放音乐，它预装在Pi I believe中：
import pygame
pygame.mixer.init()
pygame.mixer.music.load("myFile.wav")
pygame.mixer.music.play(-1) # note -1 for playing in loops
# do whatever
# when ready to stop do:
pygame.mixer.pause()如果您想取消暂停：
pygame.mixer.unpause()页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/51921965
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