From f012c3e8630f9f274c7eb0600480ab35cd56a2e1 Mon Sep 17 00:00:00 2001
From: Théo de la Hogue
Date: Wed, 6 Apr 2022 17:51:29 +0200
Subject: Simplifying synchronisation code

---
 src/argaze/utils/live_tobii_session.py | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

(limited to 'src')

diff --git a/src/argaze/utils/live_tobii_session.py b/src/argaze/utils/live_tobii_session.py
index d4a89b8..7226860 100644
--- a/src/argaze/utils/live_tobii_session.py
+++ b/src/argaze/utils/live_tobii_session.py
@@ -3,7 +3,7 @@
 import argparse
 import os, time
 
-from argaze import GazeFeatures, DataStructures
+from argaze import DataStructures
 from argaze.TobiiGlassesPro2 import *
 
 import cv2 as cv
@@ -50,18 +50,10 @@ def main():
                 data_stream = tobii_data_stream.read()
 
                 # Store received gaze positions
-                for ts in list(data_stream.gidx_l_gp.keys()):
-                    past_gaze_positions[ts] = data_stream.gidx_l_gp.pop(ts)
+                past_gaze_positions.append(data_stream.gidx_l_gp)
 
-                # Get last gaze position timestamp before video timestamp
-                earliest_ts = past_gaze_positions.get_last_before(video_ts)
-
-                # When no timestamped gaze position have been found
-                if earliest_ts == None:
-                    raise ValueError
-
-                # Get last gaze position value and remove all former gaze positions
-                earliest_ts, earliest_gaze_position = past_gaze_positions.pop_first_until(earliest_ts)
+                # Get last gaze position before video timestamp and remove all former gaze positions
+                earliest_ts, earliest_gaze_position = past_gaze_positions.pop_first_until(video_ts)
 
                 # Draw video synchronized gaze pointer
                 pointer = (int(earliest_gaze_position.gp[0] * video_frame.width), int(earliest_gaze_position.gp[1] * video_frame.height))
-- 
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