Visualization for external players worked before, but it does not work on Jelly bean. I have played music with external players, like Spotify and Winamp, while debugging the apps. The bytes in the updateVisualizerFFT method are always 0 for external players, when a visualizer is created with 0 as an argument:
new Visualizer(0);
This results in no visualization, since there is no signal to use for visualization. Do you know why this happens and how this can be fixed?
It still works for internal players. I mean when the app has its own built in player. The bytes in the updateVisualizerFFT are not 0 then, so the app has something to use for visualization, even when the visualizer is created with 0 as an argument.
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