Claude/loving lamport 5 st6 m

SKILL.md

@@ -75,7 +75,8 @@ Helpers (`helpers/transcribe.py`, `helpers/render.py`, etc.) live alongside this
 - **`transcribe_batch.py <videos_dir>`** — 4-worker parallel transcription. Use for multi-take.
 - **`pack_transcripts.py --edit-dir <dir>`** — `transcripts/*.json` → `takes_packed.md` (phrase-level, break on silence ≥ 0.5s).
 - **`timeline_view.py <video> <start> <end>`** — filmstrip + waveform PNG. On-demand visual drill-down. **Not a scan tool** — use it at decision points, not constantly.
-- **`render.py <edl.json> -o <out>`** — per-segment extract → concat → overlays (PTS-shifted) → subtitles LAST. `--preview` for 720p fast. `--build-subtitles` to generate master.srt inline.
+- **`render.py <edl.json> -o <out>`** — per-segment extract → concat → overlays (PTS-shifted) → subtitles LAST. `--preview` for 720p fast. `--build-subtitles` to generate master.srt inline. `--vertical` for 9:16 1080×1920 output (landscape sources subject-tracked then cropped; clips land in `clips_graded_vertical/` so both cuts coexist).
+- **`export_resolve.py <edl.json>`** — shot clips with handles + FCPXML 1.9 + CMX 3600 EDL, all zipped as `resolve_package.zip`. `--handles N` (default 2.0s). Import `timeline.fcpxml` into DaVinci Resolve 18+; `timeline.edl` is the CMX 3600 fallback. Shots include trim room so the editor can adjust cuts in Resolve without re-exporting.
 - **`grade.py <in> -o <out>`** — ffmpeg filter chain grade. Presets + `--filter '<raw>'` for custom.
 
 For animations, create `<edit>/animations/slot_<id>/` with `Bash` and spawn a sub-agent via the `Agent` tool.

helpers/export_resolve.py

@@ -0,0 +1,344 @@
+"""Export a DaVinci Resolve package from a video-use EDL.
+
+Produces a zip containing:
+  resolve_shots/
+    shot_01_<source>.mp4  ← source extract with handles
+    shot_02_<source>.mp4
+    ...
+    timeline.fcpxml       ← import into DaVinci Resolve 18+
+    timeline.edl          ← CMX 3600 fallback
+    README.txt
+
+Usage:
+    python helpers/export_resolve.py edit/edl.json
+    python helpers/export_resolve.py edit/edl.json --handles 2.0
+    python helpers/export_resolve.py edit/edl.json -o edit/resolve_package.zip
+"""
+
+from __future__ import annotations
+
+import argparse
+import json
+import subprocess
+import sys
+import xml.etree.ElementTree as ET
+import zipfile
+from pathlib import Path
+
+
+# -------- ffprobe helpers -----------------------------------------------------
+
+
+def detect_fps(video: Path) -> float:
+    out = subprocess.run(
+        ["ffprobe", "-v", "error", "-select_streams", "v:0",
+         "-show_entries", "stream=r_frame_rate",
+         "-of", "default=noprint_wrappers=1:nokey=1", str(video)],
+        capture_output=True, text=True, check=True,
+    )
+    num, den = map(int, out.stdout.strip().split("/"))
+    return num / den
+
+
+def detect_duration(video: Path) -> float:
+    out = subprocess.run(
+        ["ffprobe", "-v", "error",
+         "-show_entries", "format=duration",
+         "-of", "default=noprint_wrappers=1:nokey=1", str(video)],
+        capture_output=True, text=True, check=True,
+    )
+    return float(out.stdout.strip())
+
+
+def detect_dimensions(video: Path) -> tuple[int, int]:
+    out = subprocess.run(
+        ["ffprobe", "-v", "error", "-select_streams", "v:0",
+         "-show_entries", "stream=width,height",
+         "-of", "csv=p=0", str(video)],
+        capture_output=True, text=True, check=True,
+    )
+    w, h = map(int, out.stdout.strip().split(","))
+    return w, h
+
+
+def fps_to_frame_duration(fps: float) -> str:
+    """Return FCPXML-style rational frameDuration string."""
+    if abs(fps - round(fps)) < 0.02:
+        return f"1/{round(fps)}s"
+    if abs(fps - 30000 / 1001) < 0.02:
+        return "1001/30000s"
+    if abs(fps - 60000 / 1001) < 0.02:
+        return "1001/60000s"
+    return f"1/{fps:.4f}s"
+
+
+def seconds_to_tc(seconds: float, fps: float) -> str:
+    """Convert seconds to non-drop-frame timecode HH:MM:SS:FF."""
+    fps_int = round(fps)
+    total_frames = round(seconds * fps)
+    frames = total_frames % fps_int
+    total_secs = total_frames // fps_int
+    secs = total_secs % 60
+    mins = (total_secs // 60) % 60
+    hours = total_secs // 3600
+    return f"{hours:02d}:{mins:02d}:{secs:02d}:{frames:02d}"
+
+
+def resolve_path(maybe_path: str, base: Path) -> Path:
+    p = Path(maybe_path)
+    if p.is_absolute():
+        return p
+    return (base / p).resolve()
+
+
+# -------- Shot extraction -----------------------------------------------------
+
+
+def extract_shot_with_handles(
+    source: Path,
+    seg_start: float,
+    seg_end: float,
+    handle_s: float,
+    src_duration: float,
+    out_path: Path,
+) -> tuple[float, float]:
+    """Extract a shot with handles. Returns (actual_pre_s, actual_post_s)."""
+    pre = min(handle_s, seg_start)
+    post = min(handle_s, max(0.0, src_duration - seg_end))
+    start = seg_start - pre
+    duration = (seg_end - seg_start) + pre + post
+    out_path.parent.mkdir(parents=True, exist_ok=True)
+    cmd = [
+        "ffmpeg", "-y",
+        "-ss", f"{start:.3f}",
+        "-i", str(source),
+        "-t", f"{duration:.3f}",
+        "-c:v", "libx264", "-preset", "fast", "-crf", "20",
+        "-pix_fmt", "yuv420p",
+        "-c:a", "aac", "-b:a", "192k", "-ar", "48000",
+        "-movflags", "+faststart",
+        str(out_path),
+    ]
+    subprocess.run(cmd, check=True, stdout=subprocess.DEVNULL, stderr=subprocess.PIPE)
+    return pre, post
+
+
+# -------- FCPXML generation ---------------------------------------------------
+
+
+def write_fcpxml(shots: list[dict], fps: float, width: int, height: int, out_path: Path) -> None:
+    """Write a FCPXML 1.9 timeline referencing the handle-clipped shot files.
+
+    Each shot dict must have: file (Path), pre_handle (float), post_handle (float),
+    cut_duration (float), timeline_offset (float).
+
+    The asset-clip start/duration trim points sit inside the handle clip so the
+    editor has trim room in either direction up to the handle length.
+    """
+    root = ET.Element("fcpxml", version="1.9")
+    resources = ET.SubElement(root, "resources")
+    ET.SubElement(resources, "format",
+        id="r1",
+        frameDuration=fps_to_frame_duration(fps),
+        width=str(width),
+        height=str(height),
+    )
+
+    for i, shot in enumerate(shots):
+        shot_dur = shot["pre_handle"] + shot["cut_duration"] + shot["post_handle"]
+        ET.SubElement(resources, "asset",
+            id=f"a{i + 1}",
+            name=shot["file"].stem,
+            src=shot["file"].resolve().as_uri(),
+            start="0s",
+            duration=f"{shot_dur:.4f}s",
+            hasVideo="1",
+            hasAudio="1",
+            format="r1",
+        )
+
+    library = ET.SubElement(root, "library")
+    event = ET.SubElement(library, "event", name="video-use export")
+    project = ET.SubElement(event, "project", name="edit")
+    total_dur = sum(s["cut_duration"] for s in shots)
+    sequence = ET.SubElement(project, "sequence", format="r1", duration=f"{total_dur:.4f}s")
+    spine = ET.SubElement(sequence, "spine")
+
+    for i, shot in enumerate(shots):
+        ET.SubElement(spine, "asset-clip",
+            ref=f"a{i + 1}",
+            name=shot["file"].stem,
+            offset=f"{shot['timeline_offset']:.4f}s",
+            start=f"{shot['pre_handle']:.4f}s",
+            duration=f"{shot['cut_duration']:.4f}s",
+        )
+
+    tree = ET.ElementTree(root)
+    ET.indent(tree, space="  ")
+    out_path.parent.mkdir(parents=True, exist_ok=True)
+    tree.write(str(out_path), xml_declaration=True, encoding="UTF-8")
+
+
+# -------- CMX 3600 EDL --------------------------------------------------------
+
+
+def write_cmx_edl(shots: list[dict], fps: float, out_path: Path) -> None:
+    """Write a CMX 3600 EDL (NON-DROP FRAME). Reel names are shot stems ≤7 chars."""
+    lines = ["TITLE: video-use export", "FCM: NON-DROP FRAME", ""]
+    for i, shot in enumerate(shots, start=1):
+        reel = shot["file"].stem[:7]
+        src_in = seconds_to_tc(shot["pre_handle"], fps)
+        src_out = seconds_to_tc(shot["pre_handle"] + shot["cut_duration"], fps)
+        rec_in = seconds_to_tc(shot["timeline_offset"], fps)
+        rec_out = seconds_to_tc(shot["timeline_offset"] + shot["cut_duration"], fps)
+        lines.append(f"{i:03d}  {reel:<8} V     C    {src_in} {src_out} {rec_in} {rec_out}")
+        lines.append(f"* FROM CLIP NAME: {shot['file'].name}")
+        lines.append("")
+    out_path.parent.mkdir(parents=True, exist_ok=True)
+    out_path.write_text("\n".join(lines))
+
+
+# -------- README --------------------------------------------------------------
+
+
+def write_readme(shots: list[dict], handle_s: float, out_path: Path) -> None:
+    n = len(shots)
+    lines = [
+        "DaVinci Resolve Import Instructions",
+        "====================================",
+        "",
+        "1. Unzip this package and keep all files in the same folder.",
+        "2. Open DaVinci Resolve 18 or later.",
+        "3. File > Import Timeline > Import AAF, EDL, XML...",
+        "   Select:  timeline.fcpxml  (preferred — preserves clip names and trim room)",
+        "   Or:      timeline.edl     (CMX 3600 fallback if FCPXML fails)",
+        "4. When asked to locate media, point Resolve at this folder.",
+        "",
+        f"This package contains {n} shot clip{'s' if n != 1 else ''} with up to {handle_s:.1f}s",
+        "of handle on each side. You can extend any cut in Resolve up to that",
+        "amount in either direction without re-exporting.",
+        "",
+        "Generated by video-use (https://github.com/browser-use/video-use)",
+    ]
+    out_path.write_text("\n".join(lines))
+
+
+# -------- Main orchestrator ---------------------------------------------------
+
+
+def build_resolve_package(
+    edl_path: Path,
+    handle_s: float = 2.0,
+    fps_override: float | None = None,
+    out_zip: Path | None = None,
+) -> Path:
+    edl = json.loads(edl_path.read_text())
+    edit_dir = edl_path.parent
+    shots_dir = edit_dir / "resolve_shots"
+    shots_dir.mkdir(parents=True, exist_ok=True)
+
+    sources = edl["sources"]
+    ranges = edl["ranges"]
+
+    # Detect per-source fps and duration (cache per unique source path)
+    src_meta: dict[str, dict] = {}
+    for src_name, src_rel in sources.items():
+        src_path = resolve_path(src_rel, edit_dir)
+        if str(src_path) not in src_meta:
+            fps = fps_override or detect_fps(src_path)
+            dur = detect_duration(src_path)
+            w, h = detect_dimensions(src_path)
+            src_meta[str(src_path)] = {"fps": fps, "duration": dur, "width": w, "height": h}
+
+    # Use fps + dimensions from the first source for the timeline
+    first_src = resolve_path(next(iter(sources.values())), edit_dir)
+    meta0 = src_meta[str(first_src)]
+    fps = meta0["fps"]
+    width, height = meta0["width"], meta0["height"]
+
+    shots: list[dict] = []
+    timeline_offset = 0.0
+
+    print(f"extracting {len(ranges)} shot(s) with {handle_s:.1f}s handles → resolve_shots/")
+    for i, r in enumerate(ranges):
+        src_name = r["source"]
+        src_path = resolve_path(sources[src_name], edit_dir)
+        meta = src_meta[str(src_path)]
+        seg_start = float(r["start"])
+        seg_end = float(r["end"])
+        cut_dur = seg_end - seg_start
+        beat = r.get("beat") or r.get("note") or ""
+
+        out_name = f"shot_{i + 1:02d}_{src_name}.mp4"
+        out_path = shots_dir / out_name
+        print(f"  [{i + 1:02d}] {src_name}  {seg_start:.2f}-{seg_end:.2f}  ({cut_dur:.2f}s)  {beat}")
+
+        pre, post = extract_shot_with_handles(
+            src_path, seg_start, seg_end, handle_s, meta["duration"], out_path
+        )
+        shots.append({
+            "file": out_path,
+            "pre_handle": pre,
+            "post_handle": post,
+            "cut_duration": cut_dur,
+            "timeline_offset": timeline_offset,
+        })
+        timeline_offset += cut_dur
+
+    # Write FCPXML and EDL
+    fcpxml_path = shots_dir / "timeline.fcpxml"
+    edl_out_path = shots_dir / "timeline.edl"
+    readme_path = shots_dir / "README.txt"
+
+    print(f"writing timeline.fcpxml ({len(shots)} clips, {timeline_offset:.1f}s total)")
+    write_fcpxml(shots, fps, width, height, fcpxml_path)
+    print("writing timeline.edl (CMX 3600 fallback)")
+    write_cmx_edl(shots, fps, edl_out_path)
+    write_readme(shots, handle_s, readme_path)
+
+    # Zip everything
+    if out_zip is None:
+        out_zip = edit_dir / "resolve_package.zip"
+    with zipfile.ZipFile(out_zip, "w", zipfile.ZIP_DEFLATED) as zf:
+        for shot in shots:
+            zf.write(shot["file"], f"resolve_shots/{shot['file'].name}")
+        zf.write(fcpxml_path, "resolve_shots/timeline.fcpxml")
+        zf.write(edl_out_path, "resolve_shots/timeline.edl")
+        zf.write(readme_path, "resolve_shots/README.txt")
+
+    size_mb = out_zip.stat().st_size / (1024 * 1024)
+    print(f"\ndone: {out_zip} ({size_mb:.1f} MB)")
+    print(f"      {len(shots)} shots, {timeline_offset:.1f}s timeline, {handle_s:.1f}s handles")
+    return out_zip
+
+
+# -------- CLI -----------------------------------------------------------------
+
+
+def main() -> None:
+    ap = argparse.ArgumentParser(description="Export a DaVinci Resolve package from a video-use EDL")
+    ap.add_argument("edl", type=Path, help="Path to edl.json")
+    ap.add_argument(
+        "--handles", type=float, default=2.0, metavar="S",
+        help="Handle duration in seconds on each side of every cut (default: 2.0)",
+    )
+    ap.add_argument(
+        "--fps", type=float, default=None, metavar="FPS",
+        help="Override frame rate detection (default: auto-detect from source)",
+    )
+    ap.add_argument(
+        "-o", "--output", type=Path, default=None,
+        help="Output zip path (default: <edit_dir>/resolve_package.zip)",
+    )
+    args = ap.parse_args()
+
+    edl_path = args.edl.resolve()
+    if not edl_path.exists():
+        sys.exit(f"edl not found: {edl_path}")
+
+    out_zip = args.output.resolve() if args.output else None
+    build_resolve_package(edl_path, handle_s=args.handles, fps_override=args.fps, out_zip=out_zip)
+
+
+if __name__ == "__main__":
+    main()