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03c42e5b93
Fixes several possible crash issues that might occur on Intel-based Macs and older macOS versions: On modern macOS versions (13+) allocated memory is zero-allocated by default which makes NULL pointer checks work correctly after allocation. On older macOS versions this is not the case, so the OBSAVCaptureInfo struct needs to be zero-allocated to ensure the guards in the tick and render functions bail out correctly. On Intel-based Macs and/or older macOS versions passing a reference to the OBSAVCapture instance inside the OBSAVCapture struct can lead to a crash because of a possible circular reference that cannot be resolved at runtime. Passing only a reference of the OBSAVCapture to libobs and incrementing the retain count at source creation (decrementing in when the source is destroyed) avoids this issue entirely.