RFR: 8232589: Remove CoreAudio Utility Classes

[Johan Vos]

On Fri, 20 Dec 2019 22:19:27 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> https://bugs.openjdk.java.net/browse/JDK-8232589
>> 
>> - Removed CoreAudio Utility classes.
>> - Spectrum which was depended on CoreAudio Utility classes for doing computations will now run GStreamer spectrum element to do spectrum. Element will be run without pipeline and will be used as utility library to do spectrum calculation. I added extra APIs to bypass proper element initialization.
>> - Equalizer and audio unit (volume and balance) where modified, so we can run then directly without CoreAudio pipeline.
> 
> modules/javafx.media/src/main/native/gstreamer/gstreamer-lite/gst-plugins-good/gst/spectrum/gstspectrum.c line 915:
> 
>> 914:   bpf = GST_AUDIO_FILTER_BPF (spectrum);
>> 915: #ifdef OSX
>> 916:   if (spectrum->bps_user != 0 && spectrum->bpf_user != 0) {
> 
> Should this also be qualified with `GSTREAMER_LITE` since it represents changes specific to our port?

It doesn't look required to me, but it would make more sense and bring it at the same level as line 738

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PR: https://git.openjdk.java.net/jfx/pull/69