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import argparse
import os
import os.path as osp
import cv2
import glob
import sys
import tqdm
def main():
parser = argparse.ArgumentParser(description='Get frames from a video')
parser.add_argument(
'--motsynth-root', help='Directory hosting MOTSYnth part directories')
args = parser.parse_args()
video_paths = glob.glob(
osp.join(args.motsynth_root, 'MOTSynth_[0-9]/[0-9][0-9][0-9].mp4'))
frames_dir = os.path.join(args.motsynth_root, "frames")
os.makedirs(frames_dir, exist_ok=True)
print("Start extracting frames...")
for video_path in tqdm.tqdm(video_paths):
vidcap = cv2.VideoCapture(video_path)
seq_name = osp.basename(video_path).split(".")[0].zfill(3)
out_dir = os.path.join(frames_dir, seq_name, 'rgb')
os.makedirs(out_dir, exist_ok=True)
count = 1
success = True
#print("Unpacking video...")
while success:
success, image = vidcap.read()
if count < 3:
count += 1
continue
if not success or count == 1803:
break
if count % 200 == 0:
print("Extract frames until: " +
str(count - 3).zfill(4) + ".jpg")
filename = os.path.join(out_dir, str(count - 3).zfill(4) + ".jpg")
cv2.imwrite(filename, image) # save frame as JPEG file
count += 1
print("Done!")
if __name__ == '__main__':
main()
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