Thread: QT & Phonon
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Posts: 42 | Thanked: 123 times | Joined on Feb 2010
#3
Originally Posted by hadrien.jouet View Post
Anyhow, to the point, has anyone used the Phonon library for QT, and in particular effects (audio, I'm not interested in video, yet...)?
If so I would like to know:
  • what your experience in general has been with it?
  • does Phonon come out of the box with the setup mentioned previously?
  • what effects are available for the N900 (at the moment at least)?
  • how do you go about using effects?
  • what is the performance like, that includes the number of files that can be played simultaneously along with effects of sort (bearing in mind the application would also be running an interface, not just in terminal)?

Any feedback would be greatly appreciated,
Thank you!
I have been developing a media player using QT + Phonon. It is overall very easy to use comparing with gstreamer in GTK. I think Phonon in N900 is backed by gstreamer but it is a higher level API.

Here are the effects currently available to N900:
speed
audiodynamic
audioamplify
audiopanorama
equalizer-10bands

Performance of audio playback without using effect is superb; with equalizer effect will cause the process running at 50% or more most of the time.
 

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