modif app

app.py

@@ -4,6 +4,7 @@ import threading
 from datetime import datetime
 from pathlib import Path
 from typing import Dict, List, Optional, Set, Tuple
+import csv
 
 import gradio as gr
 import pandas as pd
@@ -288,10 +289,16 @@ def append_vote(method1: str, method2: str, video_name: str, winner: str):
         "timestamp": ts,
     }
     with _write_lock:
-        # Append efficiently without re-reading whole CSV
-        exists = VOTES_CSV.exists()
-        df_row = pd.DataFrame([row])
-        df_row.to_csv(VOTES_CSV, mode="a", header=not exists, index=False)
+        # Robust append with immediate flush/fsync so the file is always up-to-date
+        VOTES_CSV.parent.mkdir(parents=True, exist_ok=True)
+        need_header = (not VOTES_CSV.exists()) or (VOTES_CSV.stat().st_size == 0)
+        with open(VOTES_CSV, "a", newline="", encoding="utf-8") as f:
+            writer = csv.DictWriter(f, fieldnames=["method1", "method2", "video_name", "winner", "timestamp"])
+            if need_header:
+                writer.writeheader()
+            writer.writerow(row)
+            f.flush()
+            os.fsync(f.fileno())
         # Update memory
         PAIR_COUNTS[(method1, method2)] = PAIR_COUNTS.get((method1, method2), 0) + 1
         TOTAL_VOTES += 1
@@ -362,6 +369,12 @@ def on_vote(choice: str, state: dict):
     )
 
 
+def export_votes():
+    """Return the current CSV path for download."""
+    ensure_votes_csv()
+    # Return path; Gradio will serve it as a downloadable file
+    return str(VOTES_CSV)
+
 # ----------------------------
 # App initialization
 # ----------------------------
@@ -395,6 +408,7 @@ initialize()
 
 with gr.Blocks(title="Scientific Video Comparison Study") as demo:
     gr.Markdown("Compare the two videos and vote. Randomized positions prevent bias.")
+    gr.Markdown(f"Votes file: {VOTES_CSV}")
 
     with gr.Row():
         left_video = gr.Video(label="Left Video", autoplay=True, height=360)
@@ -416,13 +430,17 @@ with gr.Blocks(title="Scientific Video Comparison Study") as demo:
         btn_right = gr.Button("Right Video is Better", variant="primary")
         btn_toggle = gr.Button("Play/Pause Both")
 
+    # Add export/download controls
+    with gr.Row():
+        btn_export = gr.Button("Refresh & Download votes.csv")
+        votes_file = gr.File(label="votes.csv", interactive=False)
+
     # Wire events
     demo.load(
         fn=on_load,
         inputs=None,
         outputs=[left_video, right_video, progress, status, state, btn_left, btn_right],
     )
-
     btn_left.click(
         fn=lambda s: on_vote("left", s),
         inputs=[state],
@@ -433,8 +451,6 @@ with gr.Blocks(title="Scientific Video Comparison Study") as demo:
         inputs=[state],
         outputs=[left_video, right_video, progress, status, state, btn_left, btn_right],
     )
-
-    # Client-side JS to toggle both <video> elements simultaneously
     btn_toggle.click(
         fn=None,
         inputs=None,
@@ -452,6 +468,8 @@ with gr.Blocks(title="Scientific Video Comparison Study") as demo:
 }
 """
     )
+    # Export votes.csv
+    btn_export.click(fn=export_votes, inputs=None, outputs=[votes_file])
 
 if __name__ == "__main__":
     # Launch locally; adjust server_name/port as needed

requirements.txt

@@ -0,0 +1,11 @@
+pandas
+gradio[oauth,mcp]==5.43.1
+huggingface-hub>=0.19
+hf_xet>=1.0.0,<2.0.0 
+hf-transfer>=0.1.4
+protobuf<4
+click<8.1
+pydantic~=1.0
+uvicorn>=0.14.0
+spaces
+datasets