libvlc_audio_play_cb functionality

[jdwiegman]

I am writing a utility that needs to use the audio samples (for example, for visualization).

I have code working using libvlc_audio_play_cb and my callback function, but obviously this stops VLC's play-out mechanism. Is there a way to just have my function decorate or augment VLC's native play, or do I need to write my own player functionality if I want to do this?

[jdwiegman]

I am thinking libvlc_audio_play_cb isn't the right mechanism for this. My samples are getting the volume adjustment. Is there another/better method to get access to the raw decoded audio packets?

[Rémi Denis-Courmont]

You can register a volume callback with libvlc_audio_set_volume_callback() if you don't want LibVLC to perform amplification.

There are intrinsically no ways to perform play back in LibVLC while capturing audio samples. You would need to use the version-dependent plugin API and write an audio filter.