Скачать или смотреть Why Your python-vlc MediaPlayer Isn't Working and How to Fix It

Learn how to solve the issue of `python-vlc` not playing audio or video files from a .py script, with simple and effective solutions.
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This video is based on the question https://stackoverflow.com/q/61704373/ asked by the user 'SevRyb' ( https://stackoverflow.com/u/13501426/ ) and on the answer https://stackoverflow.com/a/63103654/ provided by the user 'Balobiana' ( https://stackoverflow.com/u/9720924/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Troubleshooting python-vlc MediaPlayer Issues

If you're venturing into creating a media player using the python-vlc library, you might hit a roadblock when it comes to playing audio or video files directly from your Python script. Many users experience this issue, and it can be frustrating when commands that work in the interactive Python shell or command prompt fail in your .py file. In this post, we'll explore why this happens and provide clear solutions to get your media files playing smoothly.

Understanding the Issue

You may find that running the following code in your Python interactive shell works perfectly:

[[See Video to Reveal this Text or Code Snippet]]

However, when you try the same code in a .py file, nothing happens. You might not even receive error messages, leading to confusion about what went wrong. A common error you may encounter when debugging is:

[[See Video to Reveal this Text or Code Snippet]]

Why This Happens

The root of the problem lies in how the VLC media player interacts with Windows audio services when run from a script. Unlike a command line or interactive environment, the .py script may terminate immediately after execution, releasing resources such as those needed by the audio output, thereby leading to the issues you've observed.

The Solution: Implementing a Delay or Infinite Loop

To remedy this situation, you need to ensure that your script stays active long enough for the audio or video to play. This can be done in one of two simple ways: by using a delay or an infinite loop.

Method 1: Using time.sleep()

If you want to play a specific length of audio (let's say 10 seconds), you can use Python's time library to pause the script after invoking the play method. Here's how to do it:

[[See Video to Reveal this Text or Code Snippet]]

Method 2: Using an Infinite Loop

Alternatively, if you want your script to run indefinitely while the media plays, you can implement an infinite loop. Here’s an example:

[[See Video to Reveal this Text or Code Snippet]]

This loop will prevent the script from terminating, allowing your media to play uninterrupted.

Conclusion

By implementing either a time delay or an infinite loop, you can resolve the audio/video playback issue when using the python-vlc library in your .py files. This small adjustment will ensure that your media player operates as intended, allowing you to enjoy the sounds and visuals of your favorite files right from your script.

Feel free to reach out if you have any further questions or need assistance with your media player project!