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10bc78d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | """Generate a couple of tiny synthetic .mp4 files to smoke-test the pipeline."""
import os
import cv2
import numpy as np
OUT_DIR = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), "sample_videos")
os.makedirs(OUT_DIR, exist_ok=True)
def make_video(path, seed, seconds=3, fps=10, size=(160, 120)):
fourcc = cv2.VideoWriter_fourcc(*"mp4v")
writer = cv2.VideoWriter(path, fourcc, fps, size)
rng = np.random.default_rng(seed)
base = rng.integers(0, 255, (size[1], size[0], 3), dtype=np.uint8)
for i in range(seconds * fps):
frame = base.copy()
cv2.circle(frame, (20 + (i * 4) % size[0], 60), 10, (0, 0, 255), -1)
writer.write(frame)
writer.release()
if __name__ == "__main__":
make_video(os.path.join(OUT_DIR, "original.mp4"), seed=1)
make_video(os.path.join(OUT_DIR, "duplicate_reencoded.mp4"), seed=1) # same content
make_video(os.path.join(OUT_DIR, "unrelated.mp4"), seed=99) # different content
print("Wrote sample videos to", OUT_DIR)
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