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The DAL plugin-based virtualcamera shares data between OBS and the plugin using an IOSurface. IOSurface locks are necessary to ensure race conditions between data generation (OBS side) and consumption (virtual camera side) and also that an IOSurface is not offloaded to GPU memory when it is indeed needed in CPU memory. Also moves the invalidation of the NSMachPort for the frames to after the IOSurface data has been converted into a pixelbuffer and added to the frame queue of the virtual camera, as an early invalidation will cut off access to the pixel data shared with the DAL plugin. |
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| CMakeLists.txt | ||