使用python-vlc同时播放多个音频/视频文件

Question

我正在开发一个 tkinter 应用程序，其中视频和声音根据某些事件进行排队和播放。

为此，我使用 python-vlc，但我还没有找到同时播放多个声音的方法（除了多线程）。视频还需要自己的窗口才能正常工作。

以下代码来自纯粹用于测试此功能的模块。

import vlc

files = ['/home/silver/Desktop/hl1sfx/sound/gman/gman_potential.wav', 
         '/home/silver/Desktop/hl1sfx/sound/gman/gman_nasty.wav',
         '/home/silver/Desktop/hl1sfx/sound/gman/gman_nowork.wav',
         '/home/silver/Downloads/atlas_motor_jitter.mp4']



instance = vlc.Instance ()
medias = [instance.media_new (f) for f in files]
player = vlc.MediaPlayer ()

for m in medias:
    input ('>> ')
    player.set_media (m)
    player.play ()
    if player.is_playing ():
        p = vlc.MediaPlayer (m)
        p.play ()
    input ('next?')

即使创建一个新的媒体播放器也不起作用。每个文件的单独线程是解决方案还是我忽略了 python-vlc 中的某些功能？

Answer 1

您可以，但需要单独的实例。
这是使用列表的一种简单且相当粗糙的方法。我相信随着时间的推移，您可以设计出一种更干净的方法。

import vlc
import time

files = ['./V2.mp4','./vp1.mp3','./V3.mp4'] 
instances = []
medias = []
players = []


for idx, fname in enumerate(files):
    print("Loading",fname)
    instances.append(vlc.Instance())
    medias.append(instances[idx].media_new(fname))

    players.append(vlc.MediaPlayer())
    players[idx].set_media(medias[idx])
    players[idx].play() 

player_count = players # copy of the players list so we don't modify during iteration
still_playing = True
time.sleep(0.5) # Wait for players to start

while still_playing:
    time.sleep(1)
    for p in players:
        if p.is_playing():
            continue
        else:
            player_count.remove(p)
            players = player_count # no point iterating over players that have finished
            print("Finished - Still playing ", str(len(player_count)))

    if len(player_count) != 0:
        continue
    else:
        still_playing = False

附注感谢版主删除了我对这个问题的另一个答案的质量的评论。您是否容忍“阅读手册”类型的答案或评论？你太无耻了。有了这种态度，这个网站就会失败。 我等待您的

surreptitious

编辑。

Answer 2

使用 mpyg321 执行此操作：

pip3 install mpyg321
from mpyg321.mpyg321 import MPyg321Player

然后：

while True:
    player = MPyg321Player()
    player.play_song(input('Path To Song'))

谢谢

Answer 3

你成功了吗？我一直在尝试在 Raspberry Pi 上做同样的事情。我在这里询问但没有解决。昨天我成功实现了目标。我可以在 python 中播放视频，当 PIR 运动检测器检测到运动时，它会切换到第二个视频。 我正在使用 python-vlc。 这是我的代码：

# motion_player_new
# A short program that plays a video and switches to a second video when motion is detected.
import vlc
from gpiozero import MotionSensor
from time import sleep 

# Initialise VLC player
instance = vlc.Instance()
player = instance.media_player_new()

# Create media objects 
media1 = instance.media_new('video1.mp4')
media2 = instance.media_new('video2.mp4')

# Set media to player
player.set_media(media1)

# Initialise pir
pir = MotionSensor(23)

#player.play()

# Flag to track if motion is detected
motion_detected = False

try:
    while True:
        # Check for motion
        if pir.motion_detected:
            if not motion_detected:
                motion_detected = True
                print("Motion detected")

                # Play second video
                player.set_media(media2)
                player.play()
            
                while player.get_state() != vlc.State.Ended:
                    sleep(1)

                # Reset to first video
                player.set_media(media1)
                player.play()
        else:
            motion_detected = False

        sleep(0.1) # wait before checking again

except KeyboardInterrupt:
    print("Exiting player....")
    player.stop()

        
                        

Answer 4

如果你想使用 python-vlc

您可以使用“Thread”并在后台播放音乐或......。

import threading

def MusicPlay(Name):
    #Your Code

while True:
    threading.Thread(target=Delete, args=('NameOfMusic',)).start()