From c637a4c2a33ba4c1d47cf05b78cc9af518c59e85 Mon Sep 17 00:00:00 2001
From: Théo de la Hogue
Date: Mon, 28 Mar 2022 14:41:49 +0200
Subject: Fixing timestamp unit inconsistency

---
 .../utils/analyse_tobii_segment_fixations.py       | 34 +++++++++++++++++-----
 1 file changed, 27 insertions(+), 7 deletions(-)

diff --git a/src/argaze/utils/analyse_tobii_segment_fixations.py b/src/argaze/utils/analyse_tobii_segment_fixations.py
index ef4ebbb..3fe8c7b 100644
--- a/src/argaze/utils/analyse_tobii_segment_fixations.py
+++ b/src/argaze/utils/analyse_tobii_segment_fixations.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 
 import argparse
+import bisect
 
 from argaze import GazeFeatures
 from argaze.TobiiGlassesPro2 import TobiiEntities
@@ -38,18 +39,17 @@ def main():
 
         # Access to video timestamp index
         tobii_vts = tobii_segment_data.vts
-
         print(f'{len(tobii_vts)} video timestamps loaded')
         for ts, vts in tobii_vts.items():
 
-            print(f'ts: {ts/1000000}, vts: {vts.vts/1000000}')
+            print(f'ts: {ts/1000}, vts: {vts.vts/1000}')
 
-        # Format tobii gaze data into generic gaze data and store them using second unit timestamp
+        # Format tobii gaze data into generic gaze data and store them using millisecond unit timestamp
         generic_ts_gaze_positions = GazeFeatures.TimeStampedGazePositions()
 
         for ts, tobii_data in tobii_ts_gaze_positions.items():
             generic_data = GazeFeatures.GazePosition(tobii_data.gp[0] * tobii_segment_video.get_width(), tobii_data.gp[1] * tobii_segment_video.get_height())
-            generic_ts_gaze_positions[ts/1000000] = generic_data
+            generic_ts_gaze_positions[ts/1000] = generic_data
 
         print(f'Dispersion threshold: {args.dispersion_threshold}')
         print(f'Duration threshold: {args.duration_threshold}')
@@ -61,10 +61,30 @@ def main():
         for ts, f in fixation_analyser.fixations.items():
             print(f'start time = {ts}, duration = {f.duration}, dispertion = {f.dispersion}, centroid = {f.centroid}')
 
-        # TODO : Synchronise video and gaze 
-        #for ts, frame in tobii_segment_video.frames():
+        '''
+        # TODO : Synchronise video and gaze
+        current_vts_ts, current_vts = tobii_vts.pop_first()
+        next_vts_ts, next_vts = tobii_vts.pop_first()
+
+        for ts, frame in tobii_segment_video.frames():
+
+            print(ts)
+
+            vts_offset = current_vts_ts - current_vts.vts
+            print(f'vts_offset = {vts_offset}')
+
+            if ts > next_vts.vts:
+
+                current_vts_ts, current_vts = next_vts_ts, next_vts
+                next_vts_ts, next_vts = tobii_vts.pop_first()
+
+            print(f'ts + vts_offset = {ts + vts_offset}')
 
-            #print(ts)
+            # retreive closest fixation
+            closest_fixation = bisect.bisect_left(list(fixation_analyser.fixations.keys()), ts + vts_offset)
+            
+            print(f'closest_fixation = {closest_fixation}')
+        '''
 
 if __name__ == '__main__':
 
-- 
cgit v1.1