对于我的 PyQt5 项目，我使用的是 QWebEngineView，但某些视频，例如 .mp4 视频无法播放.我可以使用 pip 安装编解码器，或者通过 QApplication() 或类似的方式传递某个参数来解决此问题吗?
For my PyQt5 project, I am using the QWebEngineView, but certain videos, such as .mp4 videos won't play. Can I install the codecs with pip, or pass a certain argument through QApplication() or something similar in order to fix this problem?
我是通过pip安装PyQt5的，所以我没有C:Qt...文件，只有PyQt5, pyqt5_tools 文件夹在 AppdataLocalProgramsPythonPython37Libsite-packages.
I installed PyQt5 through pip, so I don't have the C:Qt... files, only the PyQt5, pyqt5_tools folders in AppdataLocalProgramsPythonPython37Libsite-packages.
我正在使用 Python 3.7.2 和 PyQt5.11
pypi提供的pyqtwebengine没有开启use_proprietary_codecs标志，所以无法播放.mp4.
The pyqtwebengine provided by pypi does not enable the use_proprietary_codecs flag so you cannot play the .mp4.
如果你想获得一个播放 mp4 的 pyqtwebengine，你必须按照以下步骤操作:
If you want to get a pyqtwebengine that plays mp4 you must follow these steps:
您必须使用 WEBENGINE_CONFIG += use_proprietary_codecs 标志编译 Qt 以启用播放 mp4 所需的编解码器(Qt WebEngine功能:音视频编解码器)
You must compile Qt with the WEBENGINE_CONFIG += use_proprietary_codecs flag to enable the codecs needed to play mp4(Qt WebEngine Features: Audio and Video Codecs)
然后使用那个Qt你必须编译pyqtwebengine.
Then using that Qt you must compile pyqtwebengine.
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