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如何使用LibVLC更改MediaListPlayer中的播放音量?

libvlc vlc python-3.x python

Mikael · 技术社区 · 7 年前

MediaListPlayer 实例来执行播放列表。在标准上 MediaPlayer 您可以使用的实例 MediaPlayer.audio_set_volume(newVolume) ,但当我尝试使用相同的方法时( audio_set_volume(newVolume) MediaListPLayer 例如,我得到一个错误: AtributeError: 'MediaListPLayer' object has no attribute 'audio_set_volume' MediaListPlayer ?

from vlc import Instance

playlist = ['/home/user/Music/01 Signs.mp3','/home/user/Music/2U.mp3']
player = Instance()
mediaListPlayer = player.media_list_player_new()
mediaList = player.media_list_new()
for element in playlist:
    mediaList.add_media(player.media_new(element))
mediaListPlayer.set_media_list(mediaList)
mediaListPlayer.play()
mediaListPlayer.audio_set_volume(80)

2 回复 | 直到 7 年前

Maybe 5 年前

两年后,我也在想同样的事情。这是一个对我有效的解决方案:

import vlc

inst = vlc.Instance()
player = inst.media_list_player_new()
media_list = inst.media_list_new(["example.mp3"])
player.set_media_list(media_list)
player.play()

player.get_media_player().audio_set_volume(50)

MediaListPlayer。get\u media\u player()返回可用于在播放期间控制MediaListPlayer音量的MediaPlayer。

Rolf of Saxony 7 年前

正如我在评论中所说,这看起来确实像是疏忽。
然而,我已经设法通过黑客攻击sub_播放器来设置初始音量,但一旦设置好了,您调用列表播放器,我就没有找到调整它的方法。

import vlc
import time
playlist=['/home/rolf/vp1.mp3','/home/rolf/vp.mp3']
inst = vlc.Instance()
sub_player = inst.media_player_new()
player = inst.media_list_player_new()
mediaList = inst.media_list_new(playlist)
player.set_media_list(mediaList)
volume = 60
sub_player.audio_set_volume(volume)
sub_player.play()
playing = set([1,2,3,4])
player.play()
while player.get_state() in playing:
    time.sleep(1)

https://forum.videolan.org/viewtopic.php?f=32&t=139505 因此,对这些事情有更深入了解的人可能会提供更好的解决方案。如果我得到答案,我会把它贴在这里。