4.0 regression: libvlc_audio_set_callbacks ignored

4.0.0-dev Otto Chriek night build vlc-4.0.0-20190814-0250-dev-win32.zip

the call to libvlc_audio_set_callbacks has no effect. The callbacks are not called and the VLC audio output is not overrided.

the same code works fine as expected in 3.0.8 Vetinari

the function is broken in 4.0.0-dev Otto Chriek

void libvlc_audio_set_callbacks( libvlc_media_player_t *mp,
                                 libvlc_audio_play_cb play,
                                 libvlc_audio_pause_cb pause,
                                 libvlc_audio_resume_cb resume,
                                 libvlc_audio_flush_cb flush,
                                 libvlc_audio_drain_cb drain,
                                 void *opaque );