Script bench camera : mesure temps preview et capture gphoto2

scripts/bench_camera.py

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+#!/usr/bin/env python3
+"""Test direct gphoto2 : mesure temps preview et capture."""
+import time
+
+try:
+    import gphoto2 as gp
+except ImportError:
+    print("gphoto2 non installe")
+    exit(1)
+
+cam = gp.Camera()
+cam.init()
+print("Camera connectee")
+
+# Test preview
+print("\n--- Preview (5 frames) ---")
+times = []
+for i in range(5):
+    t0 = time.time()
+    f = cam.capture_preview()
+    data = bytes(f.get_data_and_size())
+    dt = time.time() - t0
+    times.append(dt)
+    print("Frame " + str(i+1) + ": " + str(round(dt, 3)) + "s  " + str(len(data)//1024) + "KB")
+
+print("Moyenne preview: " + str(round(sum(times)/len(times), 3)) + "s")
+
+# Test capture photo
+print("\n--- Capture photo ---")
+t0 = time.time()
+chemin = cam.capture(gp.GP_CAPTURE_IMAGE)
+dt_declenchement = time.time() - t0
+print("Declenchement: " + str(round(dt_declenchement, 3)) + "s")
+
+t1 = time.time()
+cf = gp.CameraFile()
+cam.file_get(chemin.folder, chemin.name, gp.GP_FILE_TYPE_NORMAL, cf)
+data = bytes(cf.get_data_and_size())
+dt_transfert = time.time() - t1
+print("Transfert: " + str(round(dt_transfert, 3)) + "s  " + str(len(data)//1024) + "KB")
+print("Total capture: " + str(round(time.time() - t0, 3)) + "s")
+
+cam.exit()