Play mp3 using Python, PyQt, and Phonon

Question

I been trying all day to figure out the Qt\'s Phonon library with Python.

My long term goal is to see if I could get it to play a mms:// stream, but since I can\'t find

Answer 1

In delayedInit method; create MediaObject like following:

def delayedInit(self):
    if not self.m_media:
       self.m_media = Phonon.createPlayer(Phonon.MusicCategory)

Answer 2

Phonon supports different audio file formats on different platforms, using the system's own support for media formats, so it could be that your system doesn't provide libraries for playing MP3 files. Certainly, MP3 is not supported out of the box on some Linux distributions. If you are using Linux, please take a look at the following page for information about enabling MP3 support:

http://doc.qt.io/qt-4.8/phonon-overview.html#linux

Another way to diagnose problems with Phonon's media formats is to run the Capabilities example provided with Qt:

http://doc.qt.io/qt-4.8///qt-phonon-capabilities-example.html

This should tell you which media formats are supported by your system.

Answer 3

If Phonon is not outputting audio or video, but not throwing any errors. You might just have to sudo apt-get install phonon-backend-gstreamer and also maybe sudo apt-get install libphonon-dev

Phonon uses a backend of gstreamer or vlc silently, so when its not there, no errors but no functionality either. after running those commands I was able to hear sound from phonon on my raspberry pi

Hopefully this will help someone in the future.