Use VST 2.x plugins as audio filters in OBS. EffEditOpen: the ptr argument is a WindowRef on 32 bit Mac. On 64 bit this is a NSView pointer. The plug-in needs to add its own NSView as subview of it.

Obs Vst Plugins X64 Plugins

Use VST 2.x plugins as audio filters in OBS.

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In general VST 2.4 is platform independent. There are only three platformdependent opcodes :
effEditOpen
audioMasterGetDirectory
audioMasterOpenFileSelector

Here are the required API changes for 64 bit Mac OS X:

Obs Plugin

effEditOpen:
the [ptr] argument is a WindowRef on 32 bit Mac.
On 64 bit this is a NSView pointer. The plug-in needs to add its own NSView assubview of it.

Obs Vst Plugins X64 Plugin

audioMasterGetDirectory:
the [return value] is a FSSpec on 32 bit Mac.
On 64 bit this is a char pointer pointing to an UTF-8 encoded string.

audioMasterOpenFileSelector:
the VstFileSelect struct uses FSSpec's on 32 bit Mac.
On 64 bit Mac these are char pointers pointing to UTF-8 encoded strings.