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0000000000000000000000000000000000000000..752cc2a41eb36d1d5d2399fdd2a205147c0a09ff --- /dev/null +++ b/previews/035/thermal.mp4 @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:9775a3758acff45dc280f97009b8fd8db2ec5e01e3648815a83e0ffbe634033d +size 1457668514 diff --git a/previews/036/chamber.mp4 b/previews/036/chamber.mp4 new file mode 100644 index 0000000000000000000000000000000000000000..437df327dd293831c6360953195ad86f9f5f3fa5 --- /dev/null +++ b/previews/036/chamber.mp4 @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:bf68c55312f552d0e410de61432e812082195b2c5a10351eb96650470c99eaaa +size 1448917538 diff --git a/scripts/previews/01_render.py b/scripts/previews/01_render.py index a9ddfa0f0a20d0c4cfd9b76401f378e615e5922e..003b23fb1b5e3442ec371bffcf7034f8f2129655 100644 --- a/scripts/previews/01_render.py +++ b/scripts/previews/01_render.py @@ -21,9 +21,14 @@ Usage: uv run scripts/previews/01_render.py 13 26 # specific build ids """ import io +import os import sys from pathlib import Path +# Point imageio-ffmpeg at the system ffmpeg (Ubuntu's build includes h264_nvenc; +# the bundled imageio-ffmpeg binary doesn't). Must be set BEFORE importing imageio. +os.environ.setdefault("IMAGEIO_FFMPEG_EXE", "/usr/bin/ffmpeg") + import imageio.v2 as iio import numpy as np import pyarrow.parquet as pq @@ -36,6 +41,10 @@ OUTPUT_DIR = DATA_DIR.parent / "previews" TICKS_DIR = DATA_DIR / "ticks" # Order here = left-to-right order in the composite panel. FRAME_KINDS = ("chamber", "thermal", "galvo") +# Per-kind rotation applied post-decode (degrees clockwise). The chamber camera +# is mounted sideways on the printer, so its raw frames need a 90° CW correction +# before rendering. Other kinds are captured already in display orientation. +KIND_ROTATION_CW = {"chamber": 90} FPS = 10 PANEL_HEIGHT = 480 # all panels resized to this height; widths float to preserve aspect ratio. BATCH_ROWS = 1000 # pyarrow row-group iter chunk; bounds peak memory per build. @@ -46,14 +55,24 @@ def _even(n: int) -> int: return n if n % 2 == 0 else n + 1 -def _decode_raw(frame_struct) -> Image.Image | None: - """Decode an HF Image struct to a PIL Image (RGB). None when missing.""" +def _decode_raw(frame_struct, kind: str) -> Image.Image | None: + """Decode an HF Image struct to a PIL Image (RGB), applying KIND_ROTATION_CW + if the kind needs orientation correction. None when missing.""" if frame_struct is None: return None b = frame_struct.get("bytes") if b is None: return None - return Image.open(io.BytesIO(b)).convert("RGB") + img = Image.open(io.BytesIO(b)).convert("RGB") + rot = KIND_ROTATION_CW.get(kind, 0) + # Image.Transpose.ROTATE_N rotates N degrees CCW, so CW=N → ROTATE_(360-N). + if rot == 90: + img = img.transpose(Image.Transpose.ROTATE_270) + elif rot == 180: + img = img.transpose(Image.Transpose.ROTATE_180) + elif rot == 270: + img = img.transpose(Image.Transpose.ROTATE_90) + return img def _fit_to_canvas(img: Image.Image, canvas_w: int) -> np.ndarray: @@ -84,20 +103,36 @@ def _iter_struct_batches(parquet_path: Path, columns: list[str]): def _open_writer(out_path: Path): + """Open an MP4 writer. Uses NVENC on the K620 GPUs when available, falling + back to libx264 if the env var RENDER_CPU=1 forces software encode.""" out_path.parent.mkdir(parents=True, exist_ok=True) + if os.environ.get("RENDER_CPU") == "1": + return iio.get_writer( + out_path, fps=FPS, codec="libx264", + macro_block_size=1, quality=6, # ~CRF 23-ish + ) + # NVENC path. Quality target ~CRF 23 via constant-quality VBR. `p4` is the + # balanced preset on the new naming; older NVENC firmware may report this + # as "medium". yuv420p forced because rgb24 input → NVENC needs 4:2:0. return iio.get_writer( - out_path, fps=FPS, codec="libx264", - macro_block_size=1, quality=6, # ~CRF 23-ish; tuned for forward-fill redundancy + out_path, fps=FPS, codec="h264_nvenc", + macro_block_size=1, + ffmpeg_params=[ + "-preset", "p4", + "-rc", "vbr", + "-cq", "23", + "-pix_fmt", "yuv420p", + ], ) def _probe_first_frame_width(parquet_path: Path, kind: str) -> int | None: """Find the first non-null frame of `kind`, compute the locked canvas width - from its source aspect ratio (height = PANEL_HEIGHT). Returns None if no - frame of that kind ever appears.""" + from its post-rotation aspect ratio (height = PANEL_HEIGHT). Returns None if + no frame of that kind ever appears.""" for n_rows, cols in _iter_struct_batches(parquet_path, [f"frame_{kind}"]): for struct in cols[f"frame_{kind}"]: - img = _decode_raw(struct) + img = _decode_raw(struct, kind) if img is not None: sw, sh = img.size return _even(max(2, round(sw * PANEL_HEIGHT / sh))) @@ -117,7 +152,7 @@ def render_per_kind(parquet_path: Path, kind: str, out_path: Path) -> int: with _open_writer(out_path) as writer: for n_rows, cols in _iter_struct_batches(parquet_path, [col]): for struct in cols[col]: - img = _decode_raw(struct) + img = _decode_raw(struct, kind) if img is not None: last = _fit_to_canvas(img, width) writer.append_data(last if last is not None else _placeholder(width)) @@ -137,7 +172,7 @@ def render_composite(parquet_path: Path, out_path: Path) -> int: for n_rows, cols in _iter_struct_batches(parquet_path, cols_to_read): for i in range(n_rows): for k in FRAME_KINDS: - img = _decode_raw(cols[f"frame_{k}"][i]) + img = _decode_raw(cols[f"frame_{k}"][i], k) if img is not None: last[k] = _fit_to_canvas(img, widths[k]) panels = [ @@ -149,7 +184,7 @@ def render_composite(parquet_path: Path, out_path: Path) -> int: return frames_written -def process_build(build_id: int) -> None: +def process_build(build_id: int, kinds: set[str]) -> None: parquet_path = TICKS_DIR / f"{build_id:03d}.parquet" if not parquet_path.exists(): print(f"build {build_id:03d}: no parquet, skipping") @@ -157,23 +192,40 @@ def process_build(build_id: int) -> None: build_dir = OUTPUT_DIR / f"{build_id:03d}" print(f"build {build_id:03d}: rendering → {build_dir.relative_to(Path.cwd())}/") for kind in FRAME_KINDS: + if kind not in kinds: + continue out = build_dir / f"{kind}.mp4" n = render_per_kind(parquet_path, kind, out) # render_per_kind skips writing entirely when no frames of this kind exist # (and prints its own "skipping" line). Guard stat to avoid FileNotFoundError. if out.exists(): print(f" {kind:8s}: {n:>7,} frames → {out.name} ({out.stat().st_size:,} bytes)") - out = build_dir / "composite.mp4" - n = render_composite(parquet_path, out) - if out.exists(): - print(f" composite: {n:>7,} frames → {out.name} ({out.stat().st_size:,} bytes)") + if "composite" in kinds: + out = build_dir / "composite.mp4" + n = render_composite(parquet_path, out) + if out.exists(): + print(f" composite: {n:>7,} frames → {out.name} ({out.stat().st_size:,} bytes)") def main(): - args = [int(a) for a in sys.argv[1:]] - targets = args or sorted(int(p.stem) for p in TICKS_DIR.glob("*.parquet")) + import argparse + parser = argparse.ArgumentParser(description=__doc__, + formatter_class=argparse.RawDescriptionHelpFormatter) + parser.add_argument("build_ids", nargs="*", type=int, + help="Specific build IDs to render (default: all in data/ticks/)") + parser.add_argument("--kinds", default="chamber,thermal,galvo,composite", + help="Comma-separated outputs to render. Default: all four. " + "Useful for re-rendering just one kind, e.g. " + "--kinds chamber,composite after a chamber-orientation change.") + args = parser.parse_args() + kinds = set(args.kinds.split(",")) + unknown = kinds - (set(FRAME_KINDS) | {"composite"}) + if unknown: + parser.error(f"unknown --kinds values: {sorted(unknown)}; " + f"valid: {sorted(set(FRAME_KINDS) | {'composite'})}") + targets = args.build_ids or sorted(int(p.stem) for p in TICKS_DIR.glob("*.parquet")) for bid in targets: - process_build(bid) + process_build(bid, kinds) if __name__ == "__main__":