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import os
import cv2
from tqdm import tqdm
def save_video_frames(input_dir, output_dir):
os.makedirs(output_dir, exist_ok=True)
dir_frame_idx = None
for filename in tqdm(os.listdir(input_dir)):
if filename.lower().endswith('.mp4'):
video_path = os.path.join(input_dir, filename)
base_name = os.path.splitext(filename)[0]
cap = cv2.VideoCapture(video_path)
if not cap.isOpened():
print(f"Warning: Cannot open {video_path}")
continue
frame_idx = 0
while True:
ret, frame = cap.read()
if not ret:
break
output_filename = f"{base_name}_frame_{frame_idx}.png"
output_path = os.path.join(output_dir, output_filename)
if not cv2.imwrite(output_path, frame):
print(f"Warnning: Cannot write {output_path}")
frame_idx += 1
cap.release()
if dir_frame_idx == None:
dir_frame_idx = frame_idx
else:
if dir_frame_idx != frame_idx:
print(f"Warning: {video_path} has {frame_idx} frames, but {dir_frame_idx} frames in {input_dir}")
dir_frame_idx = min(dir_frame_idx, frame_idx)
return dir_frame_idx
if __name__ == "__main__":
save_video_frames(
input_dir="aaa",
output_dir="bbb"
) |