Scripts test liveview : pygame, pyqt6, opencv, tkinter - mesure FPS et premiere image

scripts/test_tkinter.py

@@ -0,0 +1,60 @@
+#!/usr/bin/env python3
+"""Test liveview avec Tkinter. Lance: DISPLAY=:0 python3 scripts/test_tkinter.py"""
+import time
+import io
+import tkinter as tk
+from PIL import Image, ImageTk
+import gphoto2 as gp
+
+cam = gp.Camera()
+cam.init()
+print("Camera connectee")
+
+root = tk.Tk()
+root.title("Test liveview Tkinter")
+root.geometry("960x680")
+root.configure(bg="black")
+
+label_img = tk.Label(root, bg="black")
+label_img.pack()
+label_info = tk.Label(root, text="Attente...", fg="yellow", bg="black", font=("Arial", 16))
+label_info.pack()
+
+t_start = time.time()
+frame_count = 0
+premier_frame = None
+
+
+def update():
+    global frame_count, premier_frame
+    try:
+        t0 = time.time()
+        f = cam.capture_preview()
+        data = bytes(f.get_data_and_size())
+        dt = time.time() - t0
+
+        if premier_frame is None:
+            premier_frame = time.time() - t_start
+            print(f"1ere image en : {premier_frame:.2f}s")
+
+        img = Image.open(io.BytesIO(data)).resize((960, 640))
+        photo = ImageTk.PhotoImage(img)
+        label_img.config(image=photo)
+        label_img.image = photo
+
+        frame_count += 1
+        fps = frame_count / (time.time() - t_start)
+        label_info.config(text=f"FPS: {fps:.1f}  frame: {dt*1000:.0f}ms  frames: {frame_count}")
+
+    except Exception as e:
+        print(f"Erreur: {e}")
+        root.quit()
+        return
+
+    root.after(33, update)  # ~30fps
+
+
+root.after(100, update)
+root.mainloop()
+cam.exit()
+print(f"Total: {frame_count} frames")