python - Use webengine video and audio codecs

Question

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?

I installed PyQt5 through pip, so I don't have the C:Qt... files, only the PyQt5, pyqt5_tools folders in AppdataLocalProgramsPythonPython37Libsite-packages.

I am using Python 3.7.2, and PyQt5.11

Answer 1

The pyqtwebengine provided by pypi does not enable the use_proprietary_codecs flag so you cannot play the .mp4.

If you want to get a pyqtwebengine that plays mp4 you must follow these steps:

1. 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)

2. Then using that Qt you must compile pyqtwebengine.