Merge pull request #2103 from pupil-labs/port-audio-macos-crash-fix

Workaround for Player crashing with OSError: [Errno -9986] Internal PortAudio error

Author: papr

pupil_src/shared_modules/audio_playback.py

@@ -166,6 +166,12 @@ def _setup_output_audio(self):
 
         except ValueError:
             self.pa_stream = None
+        except OSError:
+            self.pa_stream = None
+            import traceback
+
+            logger.warning("Audio found, but playback failed (#2103)")
+            logger.debug(traceback.format_exc())
 
     def _setup_audio_vis(self):
         self.audio_timeline = None
@@ -321,7 +327,7 @@ def update_audio_viz(self):
             self.audio_viz_data, finished = self.audio_viz_trans.get_data(
                 log_scale=self.log_scale
             )
-            if not finished:
+            if not finished and self.audio_timeline:
                 self.audio_timeline.refresh()
 
     def setup_pyaudio_output_if_necessary(self):