shengda / pairing_audit /check_video_alignment.py
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#!/usr/bin/env python3
"""Check resolution/fps/frame-count alignment across allegro_paired_data video dirs."""
from __future__ import annotations
import json
import pickle
import re
import subprocess
from concurrent.futures import ProcessPoolExecutor, as_completed
from pathlib import Path
ROOT = Path("/data/fanliaoyuan/wxy/allegro_paired_data")
FFPROBE = "/data/fanliaoyuan/miniconda3/envs/sam3/bin/ffprobe"
EXP_W, EXP_H, EXP_FPS = 832, 480, 30.0
TOL_FPS = 0.05
HUMAN_PAT = re.compile(r"^(.+)-human-view(\d+)\.mp4$")
def probe_video(path: str) -> dict:
cmd = [
FFPROBE,
"-v",
"error",
"-select_streams",
"v:0",
"-show_entries",
"stream=width,height,r_frame_rate,nb_frames,duration",
"-of",
"json",
path,
]
out = subprocess.check_output(cmd, text=True)
st = json.loads(out)["streams"][0]
w, h = int(st["width"]), int(st["height"])
fps_s = st.get("r_frame_rate", "30/1")
if "/" in fps_s:
n, d = fps_s.split("/")
fps = float(n) / float(d)
else:
fps = float(fps_s)
nb = st.get("nb_frames")
n_frames = int(nb) if nb and int(nb) > 0 else None
dur = st.get("duration")
if n_frames is None and dur:
n_frames = max(1, int(float(dur) * fps + 0.5))
return {"width": w, "height": h, "fps": fps, "n_frames": n_frames}
def check_one(args: tuple) -> dict:
pack, view = args
hv = ROOT / "human_video" / f"{pack}-human-view{view}.mp4"
hm = ROOT / "human_video_hand_mask" / f"{pack}-mask-view{view}.mp4"
rv = ROOT / "robot_video" / f"{pack}-allegro-view{view}.mp4"
pkl = ROOT / "robot_low_dim" / f"{pack}-allegro-view{view}.pkl"
row = {"pack": pack, "view": view, "issues": []}
probes = {}
for name, path in [("human", hv), ("mask", hm), ("robot", rv)]:
try:
probes[name] = probe_video(str(path))
except Exception as e:
row["issues"].append(f"{name}_probe:{e}")
for name, pr in probes.items():
if pr["width"] != EXP_W or pr["height"] != EXP_H:
row["issues"].append(f"{name}_res:{pr['width']}x{pr['height']}")
if abs(pr["fps"] - EXP_FPS) > TOL_FPS:
row["issues"].append(f"{name}_fps:{pr['fps']:.3f}")
nf = {k: v["n_frames"] for k, v in probes.items()}
row["frames"] = nf
if len(set(nf.values())) > 1:
row["issues"].append(f"frame_mismatch:{nf}")
try:
with open(pkl, "rb") as f:
meta = pickle.load(f)["meta"]
row["pkl_frames"] = int(meta["num_frames"])
if nf and row["pkl_frames"] not in nf.values():
row["issues"].append(f"pkl_vs_video:pkl={row['pkl_frames']},videos={nf}")
except Exception as e:
row["issues"].append(f"pkl:{e}")
return row
def main():
keys = []
for p in (ROOT / "human_video").glob("*.mp4"):
m = HUMAN_PAT.match(p.name)
if m:
keys.append((m.group(1), m.group(2)))
keys.sort()
print(f"samples: {len(keys)}")
bad_res = {"human": 0, "mask": 0, "robot": 0}
bad_fps = {"human": 0, "mask": 0, "robot": 0}
frame_triple_mismatch = 0
pkl_mismatch = 0
other = 0
issue_rows = []
res_counter = {}
fps_counter = {}
workers = 24
with ProcessPoolExecutor(max_workers=workers) as ex:
futs = [ex.submit(check_one, k) for k in keys]
for i, fut in enumerate(as_completed(futs), 1):
row = fut.result()
if row.get("issues"):
issue_rows.append(row)
for iss in row["issues"]:
if iss.endswith(f":{EXP_W}x{EXP_H}") or "_res:" in iss:
pass
if "_res:" in iss:
for n in ("human", "mask", "robot"):
if f"{n}_res:" in iss:
bad_res[n] += 1
if "_fps:" in iss:
for n in ("human", "mask", "robot"):
if f"{n}_fps:" in iss:
bad_fps[n] += 1
if iss.startswith("frame_mismatch"):
frame_triple_mismatch += 1
if iss.startswith("pkl_vs_video"):
pkl_mismatch += 1
if "_probe:" in iss or iss.startswith("pkl:"):
other += 1
# collect stats from first 200 for distribution
if i <= 200 and row.get("frames"):
for name, pr_key in [("human", "human"), ("mask", "mask"), ("robot", "robot")]:
pass
if i % 500 == 0 or i == len(futs):
print(f" [{i}/{len(futs)}] issues so far: {len(issue_rows)}", flush=True)
# Re-scan issues for detailed breakdown
bad_res = {"human": 0, "mask": 0, "robot": 0}
bad_fps = {"human": 0, "mask": 0, "robot": 0}
res_vals = set()
fps_vals = set()
frame_triple_mismatch = 0
pkl_mismatch = 0
for row in issue_rows:
for iss in row["issues"]:
if "_res:" in iss:
for n in ("human", "mask", "robot"):
if f"{n}_res:" in iss:
bad_res[n] += 1
res_vals.add(iss.split(":", 1)[1])
if "_fps:" in iss:
for n in ("human", "mask", "robot"):
if f"{n}_fps:" in iss:
bad_fps[n] += 1
fps_vals.add(iss.split(":", 1)[1])
if iss.startswith("frame_mismatch"):
frame_triple_mismatch += 1
if iss.startswith("pkl_vs_video"):
pkl_mismatch += 1
out = ROOT / "pairing_audit" / "video_alignment_issues.txt"
with out.open("w", encoding="utf-8") as f:
for row in sorted(issue_rows, key=lambda r: (r["pack"], r["view"])):
f.write(f"{row['pack']}\tview{row['view']}\t{'; '.join(row['issues'])}\n")
print("\n=== 分辨率 (期望 832x480) ===")
print(f" human 非标准: {bad_res['human']}")
print(f" mask 非标准: {bad_res['mask']}")
print(f" robot 非标准: {bad_res['robot']}")
if res_vals:
print(f" 异常分辨率样例: {sorted(res_vals)[:10]}")
print("\n=== 帧率 (期望 30fps) ===")
print(f" human 非30fps: {bad_fps['human']}")
print(f" mask 非30fps: {bad_fps['mask']}")
print(f" robot 非30fps: {bad_fps['robot']}")
if fps_vals:
print(f" 异常帧率样例: {sorted(fps_vals)[:10]}")
print("\n=== 帧数对齐 ===")
print(f" 三视频帧数不一致: {frame_triple_mismatch}")
print(f" pkl num_frames 与视频不符: {pkl_mismatch}")
print(f" 总问题样本数: {len(issue_rows)} / {len(keys)}")
print(f" 详情: {out}")
if __name__ == "__main__":
main()