"""원본 프레임 덤프 — 각 영상에서 5개 프레임을 랜덤 추출"""
import sys
if sys.platform == "win32":
    sys.stdout.reconfigure(encoding="utf-8", errors="replace")
import cv2
import numpy as np
from pathlib import Path

output = Path("output")
dump_dir = output / "raw_dump"
dump_dir.mkdir(exist_ok=True)

mp4s = sorted(output.glob("*.mp4"))
for vi, mp4 in enumerate(mp4s):
    cap = cv2.VideoCapture(str(mp4))
    total = int(cap.get(cv2.CAP_PROP_FRAME_COUNT))
    fps = cap.get(cv2.CAP_PROP_FPS)
    w = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
    h = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
    print(f"Video {vi+1}: {mp4.name[:30]}... ({w}x{h}, {fps:.0f}fps, {total} frames)")

    # 균등 간격으로 5개 프레임
    indices = np.linspace(total * 0.1, total * 0.9, 5, dtype=int)
    for i, idx in enumerate(indices):
        cap.set(cv2.CAP_PROP_POS_FRAMES, idx)
        ret, frame = cap.read()
        if ret:
            path = dump_dir / f"v{vi+1}_raw_{i}.png"
            cv2.imwrite(str(path), frame)
            print(f"  frame {idx} → {path.name} ({frame.shape})")
    cap.release()

print(f"\n덤프 완료: {dump_dir}")