| import os |
| import shutil |
| import argparse |
| from pathlib import Path |
| import cv2 |
|
|
| def extract_frames_from_video(video_path, output_folder, num_frames=16): |
| cap = cv2.VideoCapture(video_path) |
| |
| total_frames = int(cap.get(cv2.CAP_PROP_FRAME_COUNT)) |
| fps = cap.get(cv2.CAP_PROP_FPS) |
| |
| interval = total_frames // num_frames |
| |
| output_folder.mkdir(parents=True, exist_ok=True) |
|
|
| for i in range(num_frames): |
| cap.set(cv2.CAP_PROP_POS_FRAMES, i * interval) |
| |
| ret, frame = cap.read() |
| if not ret: |
| break |
| |
| frame_filename = output_folder / f"frame{i + 1}_{Path(video_path).stem}.jpg" |
| cv2.imwrite(str(frame_filename), frame) |
| |
| cap.release() |
|
|
| def process_subfolders(root_path, folder_list, output_root): |
| for subfolder in Path(root_path).iterdir(): |
| if subfolder.is_dir(): |
| folder_name = subfolder.name |
| if folder_name not in folder_list: |
| continue |
| |
| target_folder = subfolder / "frame_aligned_videos/downscaled/448" |
|
|
| if target_folder.exists() and target_folder.is_dir(): |
| for video_file in target_folder.glob("cam*.mp4"): |
| print(f"Processing video: {video_file}") |
| new_subfolder = Path(output_root) / subfolder.name |
| new_subfolder.mkdir(parents=True, exist_ok=True) |
| |
| extract_frames_from_video(video_file, new_subfolder) |
|
|
| def move_and_rename_frames_from_file(file_path, destination_root, source_root): |
| with open(file_path, 'r') as f: |
| folder_list = [line.strip() for line in f.readlines()] |
|
|
| for folder in folder_list: |
| folder_path = Path(os.path.join(source_root, folder)) |
| if folder_path.exists() and folder_path.is_dir(): |
| target_folder = Path(destination_root) / folder_path.name |
| target_folder.mkdir(parents=True, exist_ok=True) |
| |
| for frame_file in folder_path.glob("frame2_*.jpg"): |
| new_filename = frame_file.name.replace("frame2_", "") |
| |
| destination_file = target_folder / new_filename |
| |
| shutil.move(str(frame_file), str(destination_file)) |
| print(f"Moved and renamed {frame_file} to {destination_file}") |
| else: |
| print(f"Folder {folder} does not exist or is not a directory.") |
|
|
| if __name__ == "__main__": |
| parser = argparse.ArgumentParser() |
| parser.add_argument('--input', required=True, help='Path to All-Angles-Bench (root folder)') |
| args = parser.parse_args() |
|
|
| root_input = Path(args.input) |
| folder_list_file = root_input / "folder_list.txt" |
| input_path = root_input / "takes" |
| output_root = root_input / "extracted_frames_huggingface" |
| destination_root = root_input / "ego_exo4d_scenes" |
|
|
| with open(folder_list_file, 'r') as f: |
| folder_list = [line.strip() for line in f.readlines()] |
|
|
| process_subfolders(input_path, folder_list, output_root) |
| print("Processing frames extraction completed!") |
| |
| move_and_rename_frames_from_file(folder_list_file, destination_root, output_root) |
| print("Files moved and renamed successfully!") |
|
|
| |
| if output_root.exists() and output_root.is_dir(): |
| shutil.rmtree(output_root) |
| print(f"Removed intermediate folder: {output_root}") |
|
|
