use fork for export and offline surface tracker process creation. This requires opencv to be build with tbb on mac os!

Author: mkassner

pupil_src/player/video_export_launcher.py

@@ -19,16 +19,8 @@
 logger = logging.getLogger(__name__)
 
 from ctypes import c_bool, c_int
-
-#threading and processing
-if platform.system() in ('Darwin'):
-    from multiprocessing import get_context
-    mp = get_context('forkserver')
-    Value = mp.Value
-    cpu_count = mp.cpu_count
-else:
-    import multiprocessing as mp
-    from multiprocessing import Value, cpu_count
+import multiprocessing as mp
+from multiprocessing import Value, cpu_count
 
 
 from exporter import export

pupil_src/shared_modules/offline_surface_tracker.py

@@ -14,13 +14,7 @@
 import cv2
 import numpy as np
 import csv
-
-#threading and processing
-if platform.system() in ('Darwin'):
-    from multiprocessing import get_context
-    mp = get_context('forkserver')
-else:
-    import multiprocessing as mp
+import multiprocessing as mp
 
 from ctypes import c_bool