有没有办法防止pydub在使用ffmpeg(在Windows上)时打开控制台窗口?每次它启动ffmpeg将mp3文件转换为wav时,它都会短暂地打开一个控制台窗口,当进程完成时自动关闭,但可能会干扰操作。
from_file
函数。我只改变了subprocess
调用,添加了startupinfo
选项。这里是我添加的几行代码:import platform
systeme = platform.system()
if systeme == 'Windows':
startupinfo = subprocess.STARTUPINFO()
startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
startupinfo.wShowWindow = subprocess.SW_HIDE
p = subprocess.Popen(conversion_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, startupinfo=startupinfo)
else:
p = subprocess.Popen(conversion_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)`
import subprocess
然后,在脚本中使用pydub之前,我添加了以下代码:
if subprocess.mswindows:subprocess.STARTUPINFO.dwFlags | = subprocess.STARTF_USESHOWWINDOW
这告诉该脚本的任何子进程调用(无论是否通过pydub指令)默认不显示窗口,而是查看另一个名为wShowWindow的标志以决定是否显示。由于该标志默认为0,因此不会显示窗口。dwFlags
不再是STARTUPINFO
的类属性,而是实例属性(例如Python 3.9等新版本),因此此答案对新版本不起作用。必须创建一个 STARTUPINFO()
对象。您可以在运行时修改源代码并重新编译它。
# Created by BaiJiFeiLong@gmail.com at 2022/2/18 22:09
import importlib.util
import re
import sys
import types
import pydub
from IceSpringPathLib import Path
for moduleName in "pydub.utils", "pydub.audio_segment":
spec = importlib.util.find_spec(moduleName, None)
source = spec.loader.get_source(moduleName)
snippet = "__import__('subprocess').STARTUPINFO(dwFlags=__import__('subprocess').STARTF_USESHOWWINDOW)"
source, n = re.subn(r"(Popen)\((.+?)\)", rf"\1(\2, startupinfo=print('worked') or {snippet})", source, flags=re.DOTALL)
module = importlib.util.module_from_spec(spec)
exec(compile(source, module.__spec__.origin, "exec"), module.__dict__)
sys.modules[moduleName] = module
module = importlib.reload(sys.modules["pydub"])
for k, v in module.__dict__.items():
if isinstance(v, types.ModuleType):
setattr(module, k, importlib.import_module(v.__name__))
pydub.audio_segment.AudioSegment.from_file(Path("~/Music").expanduser().glob("**/*.mp3").__next__())
p = subprocess.Popen(conversion_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
行,添加了creationflags=0x08000000
。这似乎是避免在这些调用中显示命令窗口的一种相当常见的方法,因此如果可能的话,也许值得将其放入pydub本身中? - dingles