Release v1.2.1 fixing a racing condition when computing the next fram…

…e took about the same time as FFmpeg's feeding speed related to queue searching not locking the queue mutexes

turbopipe/version.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-__version__ = "1.2.0"
+__version__ = "1.2.1"
 
 if __name__ == "__main__":
     print(__version__)