Fix up structure and README

examples/6_record_video.py

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+import os
+from threading import Thread
+import time
+from typing import cast
+from tello_sim.tello_sim_client import TelloSimClient
+
+import cv2
+
+# Configuration
+FPS = 30
+
+# Initialize Tello connector
+tello = TelloSimClient()
+tello.connect()
+
+tello.streamon()
+time.sleep(2)
+# Define paths to save inside tello_recording
+recording_folder = os.path.join(os.getcwd(), "output", "tello_recording")
+images_folder_path = os.path.join(recording_folder, "frames")
+video_file_path = os.path.join(recording_folder, "video.mp4")
+os.makedirs(images_folder_path, exist_ok=True)
+
+# Recording control
+keep_recording = True
+
+
+def capture_images():
+    frame_count = 0
+    while keep_recording:
+        frame = tello.get_frame_read().frame
+        if frame is not None:
+            image_file_path = os.path.join(images_folder_path, f"frame_{frame_count:04d}.jpg")
+            cv2.imwrite(image_file_path, cv2.cvtColor(frame, cv2.COLOR_RGB2BGR))
+            frame_count += 1
+            print(f"[Capture] Saved frame {frame_count}")
+        else:
+            print("[Capture] No frame received.")
+        time.sleep(1 / FPS)
+
+    print("[Capture] Finished capturing frames.")
+
+
+# Start recording thread
+recorder_thread = Thread(target=capture_images)
+recorder_thread.start()
+
+# Drone mission
+tello.takeoff()
+time.sleep(5)
+tello.move_up(50)
+time.sleep(5)
+tello.rotate_counter_clockwise(360)
+time.sleep(5)
+tello.land()
+
+# Stop recording
+keep_recording = False
+recorder_thread.join()
+
+# Create video from frames
+frame_files = sorted(os.listdir(images_folder_path))
+if frame_files:
+    first_frame = cv2.imread(os.path.join(images_folder_path, frame_files[0]))
+    height, width, _ = first_frame.shape
+
+    video_writer = cv2.VideoWriter(
+        video_file_path, cv2.VideoWriter_fourcc(*"mp4v"), FPS, (width, height) # type: ignore
+    )
+
+    for frame_file in frame_files:
+        frame_path = os.path.join(images_folder_path, frame_file)
+        frame = cv2.imread(frame_path)
+        video_writer.write(frame)
+
+    video_writer.release()
+    print(f"[Video] Video saved at {video_file_path}")
+else:
+    print("[Video] No frames captured. Video not created.")
+
+print("Finished creating video")
+tello.streamoff()