React / examples /play_react_pt.py
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examples/play_react_pt.py: accept episode-stem paths. You can now pass .../2026-05-11/episode_005 (no .pt suffix) and the player resolves all matching segments, loads the parent date folder so N/P navigation still works, and seeks to that episode on start.
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"""Interactive playback for React data -- accepts a single `.pt` OR a
directory of segments / episodes, concatenates same-episode segments
into one continuous timeline, and lets you switch between source
episodes with N / P.
The viewer reuses `twm.viz.build_preview_panel`'s 1280x480 grid:
Row 1 (y=0..240): [left cam | middle cam | right cam | OptiTrack]
Row 2 (y=240..480): [gs_L_raw | gs_L_diff | gs_R_raw | gs_R_diff | Controls]
The three RealSense thumbnails and both GelSight raw streams are pulled
from the source HDF5 file (referenced by each .pt segment's
`_contact_meta.source_episode` + `source_h5_frame_range`). When the
source H5 cannot be located, those cells are filled with a "no H5"
placeholder.
Usage
-----
Single .pt file (mode1_v1 episode OR one mode2_v1 segment):
python scripts/play_react_pt.py \\
processed/mode2_v1/motherboard/2026-05-11/episode_012.segment_00.pt
Episode stem (no .pt suffix) -- loads ALL segments of that episode and
seeds N/P navigation across the rest of the date folder:
python scripts/play_react_pt.py \\
processed/mode2_v1/motherboard/2026-05-11/episode_005
Date folder -- all episodes recorded that day:
python scripts/play_react_pt.py \\
processed/mode2_v1/motherboard/2026-05-11
Whole task -- every episode across every date:
python scripts/play_react_pt.py \\
processed/mode2_v1/motherboard
In all multi-episode modes, same-episode segments are concatenated
into one playback timeline; N / P jumps to the next / previous
source episode.
Headless export (one MP4 per episode):
python scripts/play_react_pt.py <root> --save_video_dir /tmp/out
Override the source-H5 root (otherwise inferred by replacing
`processed/<mode>` with `data` in the input path):
python scripts/play_react_pt.py <root> --h5_root /path/to/data/<task>
Controls
--------
space pause / resume
-> / d next frame
<- / a previous frame
1..6 playback speed 1x / 2x / 5x / 10x / 25x / 50x
r reset GelSight diff reference to current frame
n next episode
p previous episode
q quit
"""
import argparse
import re
import sys
import time
from pathlib import Path
from typing import Optional
import cv2
import h5py
import numpy as np
import torch
try:
from twm.viz import (
load_optitrack as _viz_load_optitrack,
optitrack_at as _viz_optitrack_at,
DISPLAY_ORDER,
)
except Exception:
_viz_load_optitrack = None
_viz_optitrack_at = None
DISPLAY_ORDER = [1, 2, 0] # H5 cam_idx order for [left, middle, right]
# ──────────────────────────────────────────────────────────────────────────────
# Layout constants (matches twm.viz.build_preview_panel)
# ──────────────────────────────────────────────────────────────────────────────
PANEL_W, PANEL_H = 1280, 480
RS_THUMB_W, RS_THUMB_H = 320, 240 # RealSense cam cell
GS_THUMB_W, GS_THUMB_H = 240, 240 # GelSight raw/diff cell
CONTROLS_W, CONTROLS_H = 320, 240 # Controls panel (replaces blank in row 2)
TRACKER_COLORS = {
"sensor_left": ( 0, 255, 120),
"sensor_right": ( 0, 180, 255),
}
SEGMENT_FNAME_RE = re.compile(r"^(episode_\d+)\.segment_(\d+)\.pt$")
PLAIN_EPISODE_RE = re.compile(r"^(episode_\d+)\.pt$")
DATE_RE = re.compile(r"^\d{4}-\d{2}-\d{2}$")
# ──────────────────────────────────────────────────────────────────────────────
def _tactile_to_bgr(tac_chw):
rgb = tac_chw.permute(1, 2, 0).numpy()
return rgb[..., ::-1]
def _missing_cell(w, h, label):
panel = np.full((h, w, 3), 32, np.uint8)
cv2.putText(panel, label, (10, h // 2),
cv2.FONT_HERSHEY_SIMPLEX, 0.45, (140, 140, 140), 1, cv2.LINE_AA)
return panel
# ──────────────────────────────────────────────────────────────────────────────
# H5 source resolution
# ──────────────────────────────────────────────────────────────────────────────
def infer_h5_root(pt_path: Path) -> Optional[Path]:
"""Map a .pt path to its source-H5 root by replacing the
`processed/<mode>/` prefix with `data/`.
Examples:
.../twm/processed/mode2_v1/motherboard/2026-05-11/ep.pt
-> .../twm/data/motherboard
.../twm/processed/mode2_v1/motherboard
-> .../twm/data/motherboard
"""
parts = list(pt_path.parts)
try:
i = parts.index("processed")
except ValueError:
return None
if i + 1 >= len(parts):
return None
base = parts[:i]
tail = []
for p in parts[i + 2:]:
if DATE_RE.match(p) or p.endswith(".pt"):
break
tail.append(p)
return Path(*base, "data", *tail)
def resolve_h5_path(h5_root: Optional[Path], source_episode: Optional[str]) -> Optional[Path]:
"""`source_episode` is '<date>/<episode_stem>'. Returns
<h5_root>/<source_episode>.h5 if it exists, else None.
"""
if not h5_root or not source_episode:
return None
candidate = h5_root / f"{source_episode}.h5"
return candidate if candidate.exists() else None
class H5Source:
"""Lazy read-only access to a source H5: cams, gelsight frames, OT poses."""
def __init__(self, h5_path: Optional[Path]):
self.path = h5_path
self.f = None
self.n_frames = 0
self.timestamps = None
self.gs_left_n = 0
self.gs_right_n = 0
self.optitrack = None
if h5_path is None:
return
try:
self.f = h5py.File(str(h5_path), "r")
self.n_frames = int(self.f["timestamps"].shape[0])
self.timestamps = self.f["timestamps"][:]
self.gs_left_n = int(self.f["gelsight/left/frames"].shape[0])
self.gs_right_n = int(self.f["gelsight/right/frames"].shape[0])
if _viz_load_optitrack is not None:
self.optitrack = _viz_load_optitrack(self.f)
except Exception as e:
print(f"[player] ! failed to open H5 {h5_path}: {e}")
self.close()
@property
def ok(self) -> bool:
return self.f is not None
def cam(self, idx: int, h5_frame: int) -> Optional[np.ndarray]:
if not self.ok or h5_frame < 0 or h5_frame >= self.n_frames:
return None
return self.f[f"realsense/cam{idx}/color"][h5_frame]
def gelsight(self, side: str, h5_frame: int) -> Optional[np.ndarray]:
if not self.ok:
return None
n = self.gs_left_n if side == "left" else self.gs_right_n
if n == 0:
return None
return self.f[f"gelsight/{side}/frames"][min(max(h5_frame, 0), n - 1)]
def ot_at(self, h5_frame: int) -> dict:
if not self.ok or self.optitrack is None or _viz_optitrack_at is None:
return {}
idx = min(max(h5_frame, 0), self.n_frames - 1)
return _viz_optitrack_at(self.optitrack, float(self.timestamps[idx]))
def close(self):
if self.f is not None:
try: self.f.close()
except Exception: pass
self.f = None
# ──────────────────────────────────────────────────────────────────────────────
# Episode discovery
# ──────────────────────────────────────────────────────────────────────────────
def discover_episodes(root: Path) -> list[dict]:
"""Walk `root`, group .pt files by source episode key '<date>/episode_NNN',
and return one entry per episode with its segment paths sorted.
Handles both:
- mode2_v1: `<root>/<date>/episode_NNN.segment_MM.pt`
- mode1_v1: `<root>/<date>/episode_NNN.pt`
"""
pts = sorted(root.rglob("*.pt"))
if not pts:
raise SystemExit(f"No .pt files under {root}")
episodes: dict[str, dict] = {}
for p in pts:
m_seg = SEGMENT_FNAME_RE.match(p.name)
m_plain = PLAIN_EPISODE_RE.match(p.name)
if m_seg:
ep_stem, seg_idx = m_seg.group(1), int(m_seg.group(2))
elif m_plain:
ep_stem, seg_idx = m_plain.group(1), 0
else:
continue
date = p.parent.name
key = f"{date}/{ep_stem}"
episodes.setdefault(key, {"date": date, "ep_stem": ep_stem, "segs": []})
episodes[key]["segs"].append((seg_idx, p))
out = []
for key in sorted(episodes):
ep = episodes[key]
ep["segs"].sort(key=lambda x: x[0])
out.append({"key": key, **ep})
return out
# ──────────────────────────────────────────────────────────────────────────────
# Episode-load
# ──────────────────────────────────────────────────────────────────────────────
class LoadedEpisode:
"""One source episode, with all its segments concatenated for playback.
The concat timeline only carries .pt scalar/pose tensors; image cells are
served on-demand from the bound source H5 file.
"""
PER_FRAME_KEYS = (
"timestamps",
"sensor_left_pose", "sensor_right_pose",
"tactile_left_intensity", "tactile_right_intensity",
"tactile_left_mixed", "tactile_right_mixed",
)
def __init__(self, ep_meta: dict, h5_root: Optional[Path] = None):
self.key = ep_meta["key"]
self.date = ep_meta["date"]
self.ep_stem = ep_meta["ep_stem"]
self.segment_paths = [p for _, p in ep_meta["segs"]]
print(f"[player] loading episode {self.key} "
f"({len(self.segment_paths)} segment{'s' if len(self.segment_paths) > 1 else ''})...")
per_seg = [torch.load(p, weights_only=False, map_location="cpu") for p in self.segment_paths]
cat = {}
for k in self.PER_FRAME_KEYS:
if k in per_seg[0]:
cat[k] = torch.cat([s[k] for s in per_seg], dim=0)
bounds = []
cursor = 0
source_ep = None
for i, s in enumerate(per_seg):
n = s["view"].shape[0]
meta = s.get("_contact_meta", {})
if source_ep is None:
source_ep = meta.get("source_episode")
bounds.append({
"start_in_concat": cursor,
"end_in_concat": cursor + n - 1,
"seg_idx": int(meta.get("source_segment_idx", i)),
"source_h5_range": meta.get("source_h5_frame_range"),
"n_frames": n,
})
cursor += n
self.data = cat
self.bounds = bounds
self.n_frames = cursor
self.source_episode = source_ep
# Bind source H5
h5_path = resolve_h5_path(h5_root, source_ep) if source_ep else None
self.h5 = H5Source(h5_path)
if self.h5.ok:
print(f"[player] H5 source: {h5_path} ({self.h5.n_frames} frames)")
else:
print(f"[player] H5 source not available "
f"(source_episode={source_ep!r}, h5_root={h5_root}) -- "
f"cam/gelsight cells will be blank")
# GelSight diff references = H5 gelsight at the first segment's H5 start
self.gs_ref_L = None
self.gs_ref_R = None
if self.h5.ok:
r0 = bounds[0]["source_h5_range"]
ref_h5_frame = r0[0] if r0 else 0
self.gs_ref_L = self.h5.gelsight("left", ref_h5_frame)
self.gs_ref_R = self.h5.gelsight("right", ref_h5_frame)
print(f"[player] total {self.n_frames} frames ({self.n_frames / 30.0:.1f}s)")
def segment_at(self, frame_idx: int) -> dict:
for b in self.bounds:
if b["start_in_concat"] <= frame_idx <= b["end_in_concat"]:
return b
return self.bounds[-1]
def is_segment_start(self, frame_idx: int) -> bool:
return any(frame_idx == b["start_in_concat"] for b in self.bounds[1:])
def h5_frame_for(self, frame_idx: int) -> Optional[int]:
seg = self.segment_at(frame_idx)
r = seg["source_h5_range"]
if r is None:
return None
return r[0] + (frame_idx - seg["start_in_concat"])
def close(self):
self.h5.close()
# ──────────────────────────────────────────────────────────────────────────────
# Panel renderer (visualize.py-style 1280x480 grid)
# ──────────────────────────────────────────────────────────────────────────────
def _make_ot_panel(ot_poses, t_idx, t_sec, w, h):
panel = np.zeros((h, w, 3), np.uint8)
cv2.putText(panel, "OptiTrack (this frame)", (8, 22),
cv2.FONT_HERSHEY_SIMPLEX, 0.55, (200, 200, 200), 1, cv2.LINE_AA)
cv2.line(panel, (8, 30), (w - 8, 30), (60, 60, 60), 1)
y = 56
for name in ("sensor_left", "sensor_right"):
color = TRACKER_COLORS[name]
cv2.putText(panel, name, (8, y),
cv2.FONT_HERSHEY_SIMPLEX, 0.45, color, 1, cv2.LINE_AA)
y += 18
pose = ot_poses.get(name) if isinstance(ot_poses, dict) else None
if pose is None:
cv2.putText(panel, " no data", (8, y),
cv2.FONT_HERSHEY_SIMPLEX, 0.4, (100, 100, 100), 1, cv2.LINE_AA)
y += 36
continue
_, xyz_quat = pose
x_m, y_m, z_m = xyz_quat[:3]
qx, qy, qz, qw = xyz_quat[3:]
cv2.putText(panel, f" x={x_m:+.3f} y={y_m:+.3f} z={z_m:+.3f}", (8, y),
cv2.FONT_HERSHEY_SIMPLEX, 0.38, (220, 220, 220), 1, cv2.LINE_AA)
y += 16
cv2.putText(panel, f" qx={qx:+.2f} qy={qy:+.2f}", (8, y),
cv2.FONT_HERSHEY_SIMPLEX, 0.38, (160, 160, 160), 1, cv2.LINE_AA)
y += 16
cv2.putText(panel, f" qz={qz:+.2f} qw={qw:+.2f}", (8, y),
cv2.FONT_HERSHEY_SIMPLEX, 0.38, (160, 160, 160), 1, cv2.LINE_AA)
y += 24
cv2.putText(panel, f"t = {t_sec:.2f} s (concat frame {t_idx})",
(8, h - 14), cv2.FONT_HERSHEY_SIMPLEX, 0.45, (200, 200, 200), 1, cv2.LINE_AA)
return panel
def _make_controls_panel(w, h, paused, speed, ep_idx, n_eps):
panel = np.zeros((h, w, 3), np.uint8)
cv2.putText(panel, "Controls", (10, 24),
cv2.FONT_HERSHEY_SIMPLEX, 0.6, (200, 200, 200), 1, cv2.LINE_AA)
cv2.line(panel, (10, 32), (w - 10, 32), (80, 80, 80), 1)
keys = [
("SPACE", "pause / resume"),
("-> / d", "next frame"),
("<- / a", "prev frame"),
("1..6", "speed 1x/2x/5x/10x/25x/50x"),
("n / p", "next / prev episode"),
("r", "reset gel-diff ref"),
("q", "quit"),
]
y = 56
for key, desc in keys:
highlight = (key == "SPACE")
key_color = (0, 220, 255) if highlight else (140, 200, 140)
desc_color = (220, 220, 220) if highlight else (160, 160, 160)
cv2.putText(panel, f"[{key}]", (10, y),
cv2.FONT_HERSHEY_SIMPLEX, 0.45, key_color, 1, cv2.LINE_AA)
cv2.putText(panel, desc, (110, y),
cv2.FONT_HERSHEY_SIMPLEX, 0.45, desc_color, 1, cv2.LINE_AA)
y += 22
state_text = "|| PAUSED" if paused else "> PLAYING"
state_color = (0, 140, 255) if paused else (0, 220, 80)
cv2.putText(panel, state_text, (10, h - 32),
cv2.FONT_HERSHEY_SIMPLEX, 0.55, state_color, 2, cv2.LINE_AA)
cv2.putText(panel, f"speed: {speed}x ep {ep_idx + 1}/{n_eps}",
(10, h - 12),
cv2.FONT_HERSHEY_SIMPLEX, 0.42, (180, 180, 180), 1, cv2.LINE_AA)
return panel
def _rs_thumb(img, label=None):
out = cv2.resize(img, (RS_THUMB_W, RS_THUMB_H))
if label:
cv2.putText(out, label, (6, 16),
cv2.FONT_HERSHEY_SIMPLEX, 0.45, (220, 220, 220), 1, cv2.LINE_AA)
return out
def _gs_thumb(img, label=None):
out = cv2.resize(img, (GS_THUMB_W, GS_THUMB_H))
if label:
cv2.putText(out, label, (6, 16),
cv2.FONT_HERSHEY_SIMPLEX, 0.42, (220, 220, 220), 1, cv2.LINE_AA)
return out
def _gs_diff_thumb(frame_bgr, ref_bgr, label=None):
diff = np.clip(frame_bgr.astype(np.int16) - ref_bgr.astype(np.int16) + 128, 0, 255).astype(np.uint8)
out = cv2.resize(diff, (GS_THUMB_W, GS_THUMB_H))
if label:
cv2.putText(out, label, (6, 16),
cv2.FONT_HERSHEY_SIMPLEX, 0.42, (220, 220, 220), 1, cv2.LINE_AA)
return out
def build_panel(ep: LoadedEpisode, frame_idx: int,
gs_ref_L, gs_ref_R,
paused: bool, speed: int,
ep_idx: int, n_eps: int):
h5_frame = ep.h5_frame_for(frame_idx)
t_sec = float(ep.data["timestamps"][frame_idx] - ep.data["timestamps"][0])
# Row 1: 3 RealSense cams (left, middle, right) + OptiTrack
cam_thumbs = []
cam_labels = ["left cam", "middle cam", "right cam"]
for slot, label in zip(DISPLAY_ORDER, cam_labels):
img = ep.h5.cam(slot, h5_frame) if h5_frame is not None else None
if img is None:
cam_thumbs.append(_missing_cell(RS_THUMB_W, RS_THUMB_H, f"{label}: no H5"))
else:
cam_thumbs.append(_rs_thumb(img, label))
ot_poses = ep.h5.ot_at(h5_frame) if h5_frame is not None else {}
ot_panel = _make_ot_panel(ot_poses, frame_idx, t_sec, RS_THUMB_W, RS_THUMB_H)
row1 = np.hstack(cam_thumbs + [ot_panel])
# Row 2: GelSight raw + diff (L, R) + Controls
gs_L = ep.h5.gelsight("left", h5_frame) if h5_frame is not None else None
gs_R = ep.h5.gelsight("right", h5_frame) if h5_frame is not None else None
if gs_L is None:
gs_L_raw = _missing_cell(GS_THUMB_W, GS_THUMB_H, "tac_L: no H5")
gs_L_dif = _missing_cell(GS_THUMB_W, GS_THUMB_H, "tac_L diff: no H5")
else:
gs_L_raw = _gs_thumb(gs_L, "tactile_left")
ref_L = gs_ref_L if gs_ref_L is not None else gs_L
gs_L_dif = _gs_diff_thumb(gs_L, ref_L, "tac_L diff")
if gs_R is None:
gs_R_raw = _missing_cell(GS_THUMB_W, GS_THUMB_H, "tac_R: no H5")
gs_R_dif = _missing_cell(GS_THUMB_W, GS_THUMB_H, "tac_R diff: no H5")
else:
gs_R_raw = _gs_thumb(gs_R, "tactile_right")
ref_R = gs_ref_R if gs_ref_R is not None else gs_R
gs_R_dif = _gs_diff_thumb(gs_R, ref_R, "tac_R diff")
controls = _make_controls_panel(CONTROLS_W, CONTROLS_H, paused, speed, ep_idx, n_eps)
row2 = np.hstack([gs_L_raw, gs_L_dif, gs_R_raw, gs_R_dif, controls])
panel = np.vstack([row1, row2])
# Top status bar (visualize.py style: thicker cyan text)
cv2.rectangle(panel, (0, 0), (PANEL_W, 22), (30, 30, 30), -1)
state = "PAUSED" if paused else "PLAYING"
seg = ep.segment_at(frame_idx)
h5r = seg["source_h5_range"]
seg_label = f"seg {seg['seg_idx']:02d}"
if h5r:
seg_label += f" H5[{h5r[0]}..{h5r[1]}]"
if h5_frame is not None:
seg_label += f" @{h5_frame}"
status = (f"[{state}] ep {ep_idx + 1}/{n_eps} {ep.key} | "
f"frame {frame_idx + 1}/{ep.n_frames} | t={t_sec:.2f}s | "
f"{seg_label} | {speed}x")
cv2.putText(panel, status, (10, 16),
cv2.FONT_HERSHEY_SIMPLEX, 0.5, (0, 200, 255), 1, cv2.LINE_AA)
# Segment-cut flash: red border for the first 2 frames of a non-first segment
if ep.is_segment_start(frame_idx):
cv2.rectangle(panel, (0, 22), (PANEL_W - 1, PANEL_H - 1), (0, 0, 220), 3)
return panel
# ──────────────────────────────────────────────────────────────────────────────
# Main
# ──────────────────────────────────────────────────────────────────────────────
def main():
ap = argparse.ArgumentParser(description="Interactive React .pt player (visualize.py-style layout).")
ap.add_argument("path", help="A single .pt file OR a directory of episodes/segments.")
ap.add_argument("--save_video", default=None,
help="When `path` is a single .pt: write that one episode as MP4 here.")
ap.add_argument("--save_video_dir", default=None,
help="When `path` is a directory: write one MP4 per episode into this dir.")
ap.add_argument("--fps", type=float, default=30.0)
ap.add_argument("--h5_root", default=None,
help="Root directory of source H5 files (e.g. <twm>/data/<task>). "
"If omitted, inferred by replacing `processed/<mode>` with `data` in `path`.")
args = ap.parse_args()
in_path = Path(args.path)
# Path-stem expansion: if the user typed an incomplete path like
# `.../2026-05-11/episode_005` (no .pt suffix, possibly no .segment_NN),
# treat it as an episode-stem filter. We load the parent date folder so
# N/P navigation still works, then start playback at the matching episode.
start_episode_key: Optional[str] = None
if not in_path.exists():
parent = in_path.parent
stem = in_path.name
if parent.is_dir() and stem:
matches = sorted(parent.glob(f"{stem}*.pt"))
# Require either an exact-name match or segment_NN siblings
matches = [p for p in matches
if PLAIN_EPISODE_RE.match(p.name) and p.stem == stem
or (SEGMENT_FNAME_RE.match(p.name)
and SEGMENT_FNAME_RE.match(p.name).group(1) == stem)]
if matches:
start_episode_key = f"{parent.name}/{stem}"
in_path = parent # discover the whole date folder
print(f"[player] interpreting '{args.path}' as episode-stem; "
f"will start at {start_episode_key}")
if not in_path.exists():
print(f"Not found: {args.path}", file=sys.stderr); sys.exit(1)
if in_path.is_file():
parent_root = in_path.parent.parent
episodes = discover_episodes(parent_root)
target_path = in_path.resolve()
start_idx = 0
for i, ep_meta in enumerate(episodes):
if any(p.resolve() == target_path for _, p in ep_meta["segs"]):
start_idx = i; break
else:
episodes = discover_episodes(in_path)
start_idx = 0
if start_episode_key is not None:
for i, ep_meta in enumerate(episodes):
if ep_meta["key"] == start_episode_key:
start_idx = i; break
else:
print(f"[player] WARN: stem '{start_episode_key}' not found in discovered "
f"episodes; starting at the first one")
print(f"[player] discovered {len(episodes)} episode(s) under {in_path}")
# Resolve H5 root
h5_root: Optional[Path] = None
if args.h5_root:
h5_root = Path(args.h5_root)
else:
h5_root = infer_h5_root(in_path)
if h5_root:
ok = "ok" if h5_root.exists() else "missing"
print(f"[player] H5 source root: {h5_root} ({ok})")
else:
print("[player] H5 source root not specified and could not be inferred -- "
"RealSense + GelSight cells will be blank")
headless_dir = Path(args.save_video_dir) if args.save_video_dir else None
headless_single = args.save_video
if headless_single and len(episodes) > 1 and in_path.is_dir():
print("--save_video accepts a single output path; for a directory pass --save_video_dir instead.",
file=sys.stderr)
sys.exit(1)
headless = headless_single is not None or headless_dir is not None
if headless:
if headless_dir:
headless_dir.mkdir(parents=True, exist_ok=True)
for ep_idx in range(start_idx, len(episodes)):
ep = LoadedEpisode(episodes[ep_idx], h5_root=h5_root)
try:
out_path = (Path(headless_single)
if headless_single else
(headless_dir / f"{ep.date}_{ep.ep_stem}.mp4"))
fourcc = cv2.VideoWriter_fourcc(*"mp4v")
writer = cv2.VideoWriter(str(out_path), fourcc, args.fps, (PANEL_W, PANEL_H))
print(f" -> {out_path}")
for f in range(ep.n_frames):
panel = build_panel(ep, f, ep.gs_ref_L, ep.gs_ref_R,
paused=False, speed=1,
ep_idx=ep_idx, n_eps=len(episodes))
writer.write(panel)
writer.release()
finally:
ep.close()
if headless_single:
break
return
# Interactive
paused, speed = False, 1
SPEEDS = {ord('1'): 1, ord('2'): 2, ord('3'): 5,
ord('4'): 10, ord('5'): 25, ord('6'): 50}
ep_idx = start_idx
while 0 <= ep_idx < len(episodes):
ep = LoadedEpisode(episodes[ep_idx], h5_root=h5_root)
action = "stay"
try:
WIN = "React .pt player"
cv2.namedWindow(WIN, cv2.WINDOW_AUTOSIZE)
cv2.createTrackbar("Frame", WIN, 0, max(1, ep.n_frames - 1), lambda v: None)
gs_ref_L, gs_ref_R = ep.gs_ref_L, ep.gs_ref_R
frame_idx = 0
last_drawn = -1
while True:
frame_idx = max(0, min(frame_idx, ep.n_frames - 1))
pos = cv2.getTrackbarPos("Frame", WIN)
if pos != frame_idx and pos != last_drawn:
frame_idx = pos; paused = True
panel = build_panel(ep, frame_idx,
gs_ref_L, gs_ref_R,
paused=paused, speed=speed,
ep_idx=ep_idx, n_eps=len(episodes))
cv2.imshow(WIN, panel)
if cv2.getTrackbarPos("Frame", WIN) != frame_idx:
cv2.setTrackbarPos("Frame", WIN, frame_idx)
last_drawn = frame_idx
key = cv2.waitKey(1) & 0xFF
if key == ord('q'): action = "quit"; break
elif key == ord(' '): paused = not paused
elif key in (81, ord('a')): paused = True; frame_idx -= 1
elif key in (83, ord('d')): paused = True; frame_idx += 1
elif key in SPEEDS: speed = SPEEDS[key]
elif key == ord('r'):
h5_frame = ep.h5_frame_for(frame_idx)
if h5_frame is not None and ep.h5.ok:
gs_ref_L = ep.h5.gelsight("left", h5_frame)
gs_ref_R = ep.h5.gelsight("right", h5_frame)
print(f" gel-diff ref reset to concat frame {frame_idx} (H5 frame {h5_frame})")
elif key == ord('n'): action = "next"; break
elif key == ord('p'): action = "prev"; break
if not paused:
frame_idx += speed
if frame_idx >= ep.n_frames:
print(f"End of episode {ep.key}.")
paused = True
frame_idx = ep.n_frames - 1
time.sleep(max(0.0, 1.0 / (args.fps * speed) - 0.001))
cv2.destroyAllWindows()
finally:
ep.close()
if action == "quit": return
if action == "next":
new_idx = min(ep_idx + 1, len(episodes) - 1)
if new_idx == ep_idx:
print("Already at last episode.")
ep_idx = new_idx
elif action == "prev":
new_idx = max(ep_idx - 1, 0)
if new_idx == ep_idx:
print("Already at first episode.")
ep_idx = new_idx
else:
paused = True
if __name__ == "__main__":
main()