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1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 | """Project-owned media catalog for the H3 Asset Carousel node.
The catalog lives below ComfyUI's input directory so ordinary loader nodes can
open every imported file without this pack. A second, content-identical copy
is retained below the matching H3 chain output directory for recovery.
"""
from __future__ import annotations
import copy
import hashlib
import json
import mimetypes
import os
import re
import shutil
import subprocess
import uuid
from datetime import datetime, timezone
from fractions import Fraction
from typing import Any
if __package__:
from .audio_track_contract import audio_track_bindings
else: # Standalone catalog tools and storage tests.
from audio_track_contract import audio_track_bindings
try:
import av
except ImportError: # ComfyUI normally includes PyAV.
av = None
try:
from PIL import Image, ImageOps
except ImportError: # ComfyUI normally includes Pillow.
Image = ImageOps = None
PROJECT_ASSET_FORMAT = "h3_project_assets_v1"
PROJECT_ASSET_VERSION = 1
PROJECT_ASSET_ROLES = (
"picture", "semantic_anchor", "video", "motion",
"audio_reference", "source_track",
)
IMAGE_EXTENSIONS = frozenset((
".avif", ".bmp", ".gif", ".jpeg", ".jpg", ".png", ".tif",
".tiff", ".webp",
))
VIDEO_EXTENSIONS = frozenset((
".avi", ".m4v", ".mkv", ".mov", ".mp4", ".mpeg", ".mpg",
".webm",
))
AUDIO_EXTENSIONS = frozenset((
".aac", ".flac", ".m4a", ".mp3", ".oga", ".ogg", ".opus",
".wav",
))
ALL_MEDIA_EXTENSIONS = IMAGE_EXTENSIONS | VIDEO_EXTENSIONS | AUDIO_EXTENSIONS
MAX_CATALOG_ASSETS = 512
MAX_REFERENCE_SLOTS = 512
MAX_ASSET_FOLDERS = 128
MAX_ASSET_LYRICS_CHARACTERS = 100_000
MAX_DERIVED_IMAGE_PIXELS = 268_435_456
MAX_INPUT_RESULTS = 2000
INPUT_BROWSER_EXCLUDED_DIRECTORIES = frozenset((
"clipspace", "h3_projects",
))
_TAG_RE = re.compile(r"[A-Za-z][A-Za-z0-9_-]{0,63}")
def _utc_now() -> str:
return datetime.now(timezone.utc).isoformat(
timespec="seconds").replace("+00:00", "Z")
def _safe_name(value: Any, fallback: str = "asset", limit: int = 128) -> str:
text = re.sub(r"[^A-Za-z0-9._-]+", "_", str(value or "").strip())
text = text.strip("._-")
return (text or fallback)[:limit]
def _safe_project(value: Any) -> str:
project = _safe_name(value, "", 96)
if not project:
raise ValueError("Run name cannot be blank.")
return project
def _safe_tag(value: Any, fallback: str = "asset") -> str:
tag = str(value or "").strip().lstrip("@#")
if not tag:
tag = _safe_name(fallback, "asset", 64)
if not tag[:1].isalpha():
tag = "asset_" + tag
if _TAG_RE.fullmatch(tag) is None:
tag = re.sub(r"[^A-Za-z0-9_-]+", "_", tag).strip("_-")[:64]
if not tag or not tag[0].isalpha():
tag = "asset_" + (tag or uuid.uuid4().hex[:8])
tag = tag[:64]
if _TAG_RE.fullmatch(tag) is None:
raise ValueError("Asset tag must begin with a letter and contain only letters, numbers, _ or -.")
return tag
def _safe_folder_name(value: Any) -> str:
name = re.sub(r"[\x00-\x1f\x7f]+", " ", str(value or "")).strip()
name = re.sub(r"\s+", " ", name)
if not name:
raise ValueError("Asset folder name cannot be blank.")
return name[:80]
def _unique_tag(catalog: dict[str, Any], value: Any, fallback: str,
*, exclude_id: str = "") -> str:
tag = _safe_tag(value, fallback)
used = {
str(item.get("tag") or "") for item in catalog.get("assets", [])
if str(item.get("id") or "") != exclude_id
and bool(item.get("enabled", True))
}
if tag not in used:
return tag
base = tag
ordinal = 2
while tag in used:
suffix = "_%d" % ordinal
tag = base[:64 - len(suffix)] + suffix
ordinal += 1
return tag
def _image_resampling(value: Any):
if Image is None:
raise RuntimeError("Pillow is required for project image variants.")
name = str(value or "lanczos").strip().lower()
modes = {
"nearest": Image.Resampling.NEAREST,
"box": Image.Resampling.BOX,
"bilinear": Image.Resampling.BILINEAR,
"hamming": Image.Resampling.HAMMING,
"bicubic": Image.Resampling.BICUBIC,
"lanczos": Image.Resampling.LANCZOS,
}
if name not in modes:
raise ValueError("Image resampling must be nearest, box, bilinear, hamming, bicubic, or lanczos.")
return name, modes[name]
def _image_operation_geometry(image: Any, crop: Any, target: Any) -> tuple[int, int, int, int, int, int]:
if not isinstance(crop, dict):
raise ValueError("Image crop must be a JSON object.")
if not isinstance(target, dict):
raise ValueError("Image target size must be a JSON object.")
try:
x = int(crop.get("x", 0))
y = int(crop.get("y", 0))
width = int(crop.get("width", image.width))
height = int(crop.get("height", image.height))
target_width = int(target.get("width", width))
target_height = int(target.get("height", height))
except (TypeError, ValueError) as exc:
raise ValueError("Crop and target dimensions must be whole pixels.") from exc
if x < 0 or y < 0 or width < 1 or height < 1:
raise ValueError("Crop dimensions must describe a positive area inside the source image.")
if x + width > image.width or y + height > image.height:
raise ValueError(
"Crop %d,%d %dx%d exceeds the oriented source image %dx%d." %
(x, y, width, height, image.width, image.height))
if target_width < 1 or target_height < 1:
raise ValueError("Target width and height must be positive.")
if target_width * target_height > MAX_DERIVED_IMAGE_PIXELS:
raise ValueError("Derived image target exceeds %d pixels." % MAX_DERIVED_IMAGE_PIXELS)
return x, y, width, height, target_width, target_height
def _inside(root: str, path: str) -> bool:
try:
return os.path.commonpath(
(os.path.realpath(root), os.path.realpath(path))) == os.path.realpath(root)
except ValueError:
return False
def _atomic_json(path: str, value: Any) -> None:
os.makedirs(os.path.dirname(path), exist_ok=True)
temporary = "%s.%s.tmp" % (path, uuid.uuid4().hex)
try:
with open(temporary, "w", encoding="utf-8") as handle:
json.dump(value, handle, ensure_ascii=False, indent=2, sort_keys=True)
handle.write("\n")
os.replace(temporary, path)
finally:
try:
os.unlink(temporary)
except FileNotFoundError:
pass
def _file_sha256(path: str) -> str:
digest = hashlib.sha256()
with open(path, "rb") as handle:
while True:
chunk = handle.read(1024 * 1024)
if not chunk:
break
digest.update(chunk)
return digest.hexdigest()
def _canonical_fingerprint(value: Any) -> str:
payload = json.dumps(
value, ensure_ascii=False, sort_keys=True,
separators=(",", ":")).encode("utf-8")
return hashlib.sha256(payload).hexdigest()
def _media_kind(path: str) -> str:
suffix = os.path.splitext(path)[1].lower()
if suffix in IMAGE_EXTENSIONS:
return "image"
if suffix in VIDEO_EXTENSIONS:
return "video"
if suffix in AUDIO_EXTENSIONS:
return "audio"
raise ValueError("Unsupported media extension %r." % suffix)
def _role_for_kind(kind: str, role: Any) -> str:
role = str(role or "").strip().lower()
defaults = {"image": "picture", "video": "video", "audio": "audio_reference"}
role = role or defaults[kind]
allowed = {
"image": {"picture", "semantic_anchor"},
"video": {"video", "motion", "source_track"},
"audio": {"audio_reference", "source_track"},
}
if role not in allowed[kind]:
raise ValueError("Role %r is not valid for a %s asset." % (role, kind))
return role
def _stream_duration(stream: Any, container: Any) -> float:
if stream.duration is not None and stream.time_base is not None:
return max(0.0, float(stream.duration * stream.time_base))
if container.duration is not None:
return max(0.0, float(container.duration) / 1_000_000.0)
return 0.0
def _fraction_parts(value: Any, fallback: int = 24) -> tuple[int, int]:
try:
rate = Fraction(value)
except (TypeError, ValueError, ZeroDivisionError):
rate = Fraction(fallback, 1)
if rate <= 0:
rate = Fraction(fallback, 1)
return int(rate.numerator), int(rate.denominator)
def _probe_media(path: str, kind: str) -> dict[str, Any]:
if kind == "image":
if Image is None:
return {}
with Image.open(path) as image:
return {
"width": int(image.width),
"height": int(image.height),
"format": str(image.format or "").lower(),
"frames": int(getattr(image, "n_frames", 1)),
}
if av is None:
return {}
with av.open(path, mode="r") as container:
if kind == "video":
videos = list(container.streams.video)
if not videos:
raise ValueError("Video asset contains no video stream.")
video = videos[0]
rate = video.average_rate or video.guessed_rate or video.base_rate
numerator, denominator = _fraction_parts(rate)
duration = _stream_duration(video, container)
frames = int(video.frames or 0)
if frames <= 0 and duration > 0:
frames = int(round(duration * numerator / denominator))
audio_metadata = {}
audios = list(container.streams.audio)
if audios:
audio = audios[0]
audio_metadata = {
"audio_sample_rate": int(
audio.codec_context.sample_rate or audio.rate or 0),
"audio_channels": len(audio.codec_context.layout.channels),
"audio_start_seconds": float(
audio.start_time * audio.time_base)
if audio.start_time is not None
and audio.time_base is not None else 0.0,
}
return {
"width": int(video.codec_context.width or video.width or 0),
"height": int(video.codec_context.height or video.height or 0),
"duration_seconds": duration,
"frame_count": frames,
"source_rate_numerator": numerator,
"source_rate_denominator": denominator,
"fps": numerator / float(denominator),
"codec": str(video.codec_context.name or ""),
"video_start_seconds": float(
video.start_time * video.time_base)
if video.start_time is not None and video.time_base is not None
else 0.0,
"has_audio": bool(audios),
**audio_metadata,
}
audios = list(container.streams.audio)
if not audios:
raise ValueError("Audio asset contains no audio stream.")
audio = audios[0]
sample_rate = int(audio.codec_context.sample_rate or audio.rate or 0)
channels = len(audio.codec_context.layout.channels)
return {
"duration_seconds": _stream_duration(audio, container),
"sample_rate": sample_rate,
"channels": channels,
"codec": str(audio.codec_context.name or ""),
}
def _entry_contract(entry: dict[str, Any]) -> dict[str, Any]:
options = entry.get("options") if isinstance(entry.get("options"), dict) else {}
return {
"id": str(entry.get("id") or ""),
"kind": str(entry.get("kind") or ""),
"role": str(entry.get("role") or ""),
"tag": str(entry.get("tag") or ""),
"sha256": str(entry.get("sha256") or ""),
"enabled": bool(entry.get("enabled", True)),
"options": options,
}
def _slot_contract(slot: dict[str, Any]) -> dict[str, Any]:
options = slot.get("options") if isinstance(slot.get("options"), dict) else {}
return {
"id": str(slot.get("id") or ""),
"kind": str(slot.get("kind") or ""),
"role": str(slot.get("role") or ""),
"tag": str(slot.get("tag") or ""),
"content_hash": str(slot.get("content_hash") or ""),
"available": bool(slot.get("available", True)),
"options": options,
}
class ProjectAssetStore:
"""Own project media below input/h3_projects and mirror it to a run."""
def __init__(self, input_root: str, output_root: str):
self.input_root = os.path.realpath(os.path.abspath(input_root))
self.output_root = os.path.realpath(os.path.abspath(output_root))
self.projects_root = os.path.join(self.input_root, "h3_projects")
self.chains_root = os.path.join(self.output_root, "h3_chains")
def _project_dir(self, project: Any) -> tuple[str, str]:
name = _safe_project(project)
path = os.path.realpath(os.path.join(self.projects_root, name))
if not _inside(self.input_root, path):
raise ValueError("Project asset path escapes the ComfyUI input directory.")
return path, name
def _backup_dir(self, project: Any) -> tuple[str, str]:
name = _safe_project(project)
path = os.path.realpath(os.path.join(
self.chains_root, name, "project_assets"))
if not _inside(self.output_root, path):
raise ValueError("Project backup path escapes the ComfyUI output directory.")
return path, name
@staticmethod
def _empty_catalog(project: str) -> dict[str, Any]:
return {
"format": PROJECT_ASSET_FORMAT,
"version": PROJECT_ASSET_VERSION,
"project": project,
"updated_at": _utc_now(),
"revision": "",
"assets": [],
"reference_slots": [],
"folders": [],
}
def load(self, project: Any, *, create: bool = False) -> dict[str, Any]:
directory, name = self._project_dir(project)
path = os.path.join(directory, "catalog.json")
if not os.path.isfile(path):
catalog = self._empty_catalog(name)
if create:
return self._save_catalog(catalog)
return catalog
with open(path, "r", encoding="utf-8") as handle:
catalog = json.load(handle)
if (not isinstance(catalog, dict)
or catalog.get("format") != PROJECT_ASSET_FORMAT
or int(catalog.get("version", -1)) != PROJECT_ASSET_VERSION
or not isinstance(catalog.get("assets"), list)):
raise ValueError("Project asset catalog has an unsupported format.")
catalog["project"] = name
slots = catalog.get("reference_slots")
catalog["reference_slots"] = (
slots if isinstance(slots, list) else [])
folders = catalog.get("folders")
catalog["folders"] = folders if isinstance(folders, list) else []
return catalog
def _save_catalog(self, catalog: dict[str, Any]) -> dict[str, Any]:
directory, name = self._project_dir(catalog.get("project"))
assets = [dict(item) for item in catalog.get("assets", [])
if isinstance(item, dict)]
slots = [dict(item) for item in catalog.get("reference_slots", [])
if isinstance(item, dict)]
folders = [dict(item) for item in catalog.get("folders", [])
if isinstance(item, dict)]
if len(assets) > MAX_CATALOG_ASSETS:
raise ValueError("Project asset catalog supports at most %d assets." % MAX_CATALOG_ASSETS)
if len(slots) > MAX_REFERENCE_SLOTS:
raise ValueError(
"Project asset catalog supports at most %d unresolved "
"reference slots." % MAX_REFERENCE_SLOTS)
if len(folders) > MAX_ASSET_FOLDERS:
raise ValueError(
"Project asset catalog supports at most %d folders." %
MAX_ASSET_FOLDERS)
folder_ids = [str(item.get("id") or "") for item in folders]
if (any(not item for item in folder_ids)
or len(folder_ids) != len(set(folder_ids))):
raise ValueError("Every asset folder must have a unique ID.")
known_folders = set(folder_ids)
for asset in assets:
options = asset.get("options") or {}
if options.get("audio_tracks") is not None:
if asset.get("kind") != "audio":
raise ValueError("Only audio assets can group audio tracks.")
asset["options"] = {
**options, "audio_tracks": audio_track_bindings(
options["audio_tracks"], assets),
}
folder_id = str(asset.get("folder_id") or "")
if folder_id and folder_id not in known_folders:
asset["folder_id"] = ""
document = {
"format": PROJECT_ASSET_FORMAT,
"version": PROJECT_ASSET_VERSION,
"project": name,
"updated_at": _utc_now(),
"assets": assets,
"reference_slots": slots,
"folders": folders,
}
document["revision"] = _canonical_fingerprint({
"assets": [_entry_contract(item) for item in assets],
"reference_slots": [_slot_contract(item) for item in slots],
})
for group in ("images", "videos", "audio", "previews", ".uploads"):
os.makedirs(os.path.join(directory, group), exist_ok=True)
_atomic_json(os.path.join(directory, "catalog.json"), document)
backup, _name = self._backup_dir(name)
os.makedirs(backup, exist_ok=True)
_atomic_json(os.path.join(backup, "catalog.json"), document)
return document
def public_catalog(self, project: Any) -> dict[str, Any]:
catalog = self.load(project, create=True)
return {
**catalog,
"assets": [dict(item) for item in catalog["assets"]],
"reference_slots": [
dict(item) for item in catalog.get("reference_slots", [])],
"folders": [dict(item) for item in catalog.get("folders", [])],
}
def duplicate_project(
self, project: Any, new_project: Any) -> dict[str, Any]:
"""Clone one complete asset project without copying generated output.
Only catalog-referenced media below ``input/h3_projects`` and its
``project_assets`` recovery mirror are copied. The source run's
checkpoints, generated clips, assembled videos, and other output
files are never traversed.
"""
source_directory, source_name = self._project_dir(project)
target_directory, target_name = self._project_dir(new_project)
if source_name == target_name:
raise ValueError(
"The duplicated asset project needs a different Run name.")
source_catalog_path = os.path.join(source_directory, "catalog.json")
if not os.path.isfile(source_catalog_path):
raise FileNotFoundError(
"Asset project %s does not exist." % source_name)
source_catalog = self.load(source_name)
media: dict[str, tuple[str, str, int]] = {}
for entry in source_catalog.get("assets", []):
source_path = self._asset_path(source_name, entry)
relative = str(entry.get("relative_path") or "").replace(
"/", os.sep)
normalized = os.path.normpath(relative)
if (not relative or normalized in ("", ".")
or os.path.isabs(normalized)
or normalized == os.pardir
or normalized.startswith(os.pardir + os.sep)):
raise ValueError(
"Project asset media path escapes its store: %s" %
relative)
digest = _file_sha256(source_path)
expected = str(entry.get("sha256") or "")
if expected and digest != expected:
raise ValueError(
"Project asset %s no longer matches its catalog SHA-256."
% entry.get("tag", entry.get("id", "asset")))
existing = media.get(normalized)
if existing is not None and existing[1] != digest:
raise ValueError(
"Project asset catalog maps one media path to different "
"content.")
media[normalized] = (
source_path, digest, int(os.path.getsize(source_path)))
target_backup, _name = self._backup_dir(target_name)
target_run_directory = os.path.dirname(target_backup)
if os.path.exists(target_directory):
raise FileExistsError(
"An asset project named %s already exists. Choose a new Run "
"name." % target_name)
if os.path.exists(target_run_directory):
raise FileExistsError(
"An H3 output Run named %s already exists. Choose a new Run "
"name so its renders and checkpoints remain separate." %
target_name)
os.makedirs(self.projects_root, exist_ok=True)
os.makedirs(self.chains_root, exist_ok=True)
created_project = False
created_run = False
try:
os.mkdir(target_directory)
created_project = True
os.mkdir(target_run_directory)
created_run = True
os.makedirs(target_backup)
for group in ("images", "videos", "audio", "previews", ".uploads"):
os.makedirs(os.path.join(target_directory, group))
for group in ("images", "videos", "audio"):
os.makedirs(os.path.join(target_backup, group))
for relative, (source_path, digest, _size) in media.items():
for root in (target_directory, target_backup):
destination = os.path.realpath(os.path.join(root, relative))
if not _inside(root, destination):
raise ValueError(
"Project asset media path escapes its duplicate.")
os.makedirs(os.path.dirname(destination), exist_ok=True)
shutil.copy2(source_path, destination)
if _file_sha256(destination) != digest:
raise ValueError(
"Duplicated project asset failed its SHA-256 check.")
now = _utc_now()
cloned_catalog = copy.deepcopy(source_catalog)
cloned_catalog["project"] = target_name
cloned_catalog["updated_at"] = now
for entry in cloned_catalog.get("assets", []):
relative = str(entry.get("relative_path") or "")
entry["input_path"] = os.path.join(
"h3_projects", target_name, relative).replace(os.sep, "/")
entry["updated_at"] = now
saved = self._save_catalog(cloned_catalog)
return {
"catalog": saved,
"source_project": source_name,
"target_project": target_name,
"asset_count": len(saved.get("assets", [])),
"media_file_count": len(media),
"copied_bytes": sum(item[2] for item in media.values()),
"render_outputs_copied": False,
}
except Exception:
if created_run:
shutil.rmtree(target_run_directory, ignore_errors=True)
if created_project:
shutil.rmtree(target_directory, ignore_errors=True)
raise
def _asset_path(self, project: Any, entry: dict[str, Any]) -> str:
directory, _name = self._project_dir(project)
relative = str(entry.get("relative_path") or "")
path = os.path.realpath(os.path.join(directory, relative))
if not relative or not _inside(directory, path) or not os.path.isfile(path):
raise FileNotFoundError("Project asset file is missing: %s" % relative)
return path
def asset(self, project: Any, asset_id: Any) -> tuple[dict[str, Any], str]:
catalog = self.load(project)
wanted = str(asset_id or "")
entry = next((item for item in catalog["assets"]
if str(item.get("id") or "") == wanted), None)
if entry is None:
raise FileNotFoundError("Project asset %s was not found." % wanted)
return dict(entry), self._asset_path(project, entry)
def upload_path(self, project: Any, filename: Any) -> str:
directory, _name = self._project_dir(project)
os.makedirs(os.path.join(directory, ".uploads"), exist_ok=True)
basename = _safe_name(os.path.basename(str(filename or "asset")), "asset")
suffix = os.path.splitext(basename)[1].lower()
if suffix not in ALL_MEDIA_EXTENSIONS:
raise ValueError("Unsupported upload extension %r." % suffix)
return os.path.join(directory, ".uploads", "%s_%s" % (
uuid.uuid4().hex, basename))
def sync_reference_slots(
self, project: Any, templates: Any) -> dict[str, Any]:
"""Mirror reference metadata without copying or serializing media."""
if not isinstance(templates, list):
raise ValueError("Reference templates must be a list.")
catalog = self.load(project, create=True)
resolved_tags = {
str(item.get("tag") or "") for item in catalog["assets"]}
current = {
str(item.get("tag") or ""): dict(item)
for item in catalog.get("reference_slots", [])
if isinstance(item, dict) and str(item.get("tag") or "")
}
incoming_tags = set()
slots = []
now = _utc_now()
for raw in templates:
if not isinstance(raw, dict):
raise ValueError("Every reference template must be an object.")
kind = str(raw.get("kind") or "").strip().lower()
if kind not in ("image", "video", "audio"):
raise ValueError(
"Reference template kind must be image, video, or audio.")
tag = _safe_tag(raw.get("tag"), "%s_reference" % kind)
if tag in incoming_tags:
raise ValueError("Reference template @%s is duplicated." % tag)
incoming_tags.add(tag)
if tag in resolved_tags:
# A project asset with this tag is already the authoritative
# binding. Synchronization never overwrites it.
continue
role = _role_for_kind(kind, raw.get("role"))
options = raw.get("options")
options = dict(options) if isinstance(options, dict) else {}
previous = current.get(tag)
created_at = str(
(previous or {}).get("created_at") or now)
slot = {
"id": str((previous or {}).get("id") or
("slot_" + uuid.uuid4().hex)),
"kind": kind,
"role": role,
"tag": tag,
"content_hash": str(raw.get("content_hash") or ""),
"available": True,
"source": "tagged_references",
"created_at": created_at,
"updated_at": now,
"options": options,
}
slots.append(slot)
for tag, previous in current.items():
if tag in incoming_tags or tag in resolved_tags:
continue
stale = dict(previous)
stale["available"] = False
stale["updated_at"] = now
slots.append(stale)
old_contract = [
_slot_contract(item)
for item in catalog.get("reference_slots", [])]
new_contract = [_slot_contract(item) for item in slots]
if old_contract == new_contract:
return self.public_catalog(project)
catalog["reference_slots"] = slots
return self._save_catalog(catalog)
def bind_reference_slot(
self, project: Any, slot_id: Any, source_path: Any, *,
role: Any = "", tag: Any = "", original_name: Any = "",
source_kind: str = "path",
options: dict[str, Any] | None = None) -> dict[str, Any]:
"""Bind explicitly selected media to one unresolved reference slot."""
catalog = self.load(project)
wanted = str(slot_id or "")
slot = next((item for item in catalog.get("reference_slots", [])
if str(item.get("id") or "") == wanted), None)
if slot is None:
raise FileNotFoundError(
"Unresolved reference slot %s was not found." % wanted)
merged_options = dict(slot.get("options") or {})
if isinstance(options, dict):
merged_options.update(options)
result = self.import_file(
project, source_path,
role=role or slot.get("role"), tag=tag or slot.get("tag"),
original_name=original_name, source_kind=source_kind,
options=merged_options)
bound_catalog = result["catalog"]
bound_catalog["reference_slots"] = [
item for item in bound_catalog.get("reference_slots", [])
if str(item.get("id") or "") != wanted]
result["catalog"] = self._save_catalog(bound_catalog)
result["bound_slot_id"] = wanted
return result
def import_file(self, project: Any, source_path: Any, *, role: Any = "",
tag: Any = "", original_name: Any = "",
source_kind: str = "path",
options: dict[str, Any] | None = None) -> dict[str, Any]:
source = os.path.realpath(os.path.abspath(os.path.expanduser(
str(source_path or "").strip())))
if not source or not os.path.isfile(source):
raise FileNotFoundError("Asset source does not exist: %s" % source)
kind = _media_kind(source)
role = _role_for_kind(kind, role)
basename = os.path.basename(str(original_name or source))
stem = os.path.splitext(basename)[0]
tag = _safe_tag(tag, stem)
digest = _file_sha256(source)
size = int(os.path.getsize(source))
directory, name = self._project_dir(project)
catalog = self.load(name, create=True)
if role == "source_track" and any(
item.get("role") == "source_track"
and bool(item.get("enabled", True))
for item in catalog["assets"]):
raise ValueError(
"This project already has an enabled Source track. Disable "
"or reassign it before importing another one.")
group = {"image": "images", "video": "videos", "audio": "audio"}[kind]
suffix = os.path.splitext(source)[1].lower()
filename = "%s_%s%s" % (
digest[:16], _safe_name(stem, kind, 80), suffix)
destination = os.path.join(directory, group, filename)
os.makedirs(os.path.dirname(destination), exist_ok=True)
if not os.path.isfile(destination) or _file_sha256(destination) != digest:
temporary = "%s.%s.tmp" % (destination, uuid.uuid4().hex)
try:
shutil.copy2(source, temporary)
if _file_sha256(temporary) != digest:
raise ValueError("Imported asset failed its SHA-256 check.")
os.replace(temporary, destination)
finally:
try:
os.unlink(temporary)
except FileNotFoundError:
pass
metadata = _probe_media(destination, kind)
tag = _unique_tag(catalog, tag, stem)
now = _utc_now()
entry = {
"id": uuid.uuid4().hex,
"kind": kind,
"role": role,
"tag": tag,
"enabled": True,
"relative_path": os.path.relpath(destination, directory).replace(os.sep, "/"),
"input_path": os.path.relpath(destination, self.input_root).replace(os.sep, "/"),
"sha256": digest,
"size": size,
"mime_type": mimetypes.guess_type(destination)[0] or "application/octet-stream",
"original_name": basename,
"source_kind": str(source_kind or "path")[:40],
"created_at": now,
"updated_at": now,
"metadata": metadata,
"options": dict(options or {}),
}
catalog["assets"].append(entry)
catalog = self._save_catalog(catalog)
backup, _name = self._backup_dir(name)
backup_path = os.path.join(backup, group, filename)
os.makedirs(os.path.dirname(backup_path), exist_ok=True)
if not os.path.isfile(backup_path) or _file_sha256(backup_path) != digest:
temporary = "%s.%s.tmp" % (backup_path, uuid.uuid4().hex)
try:
shutil.copy2(destination, temporary)
os.replace(temporary, backup_path)
finally:
try:
os.unlink(temporary)
except FileNotFoundError:
pass
return {"catalog": catalog, "asset": entry}
def create_folder(self, project: Any, name: Any, *, color: Any = "") -> dict[str, Any]:
catalog = self.load(project, create=True)
if len(catalog.get("folders", [])) >= MAX_ASSET_FOLDERS:
raise ValueError(
"Project asset catalog supports at most %d folders." %
MAX_ASSET_FOLDERS)
folder_name = _safe_folder_name(name)
if any(str(item.get("name") or "").casefold() == folder_name.casefold()
for item in catalog.get("folders", [])):
raise ValueError("An asset folder named %r already exists." % folder_name)
now = _utc_now()
folder = {
"id": "folder_" + uuid.uuid4().hex,
"name": folder_name,
"color": str(color or "")[:32],
"created_at": now,
"updated_at": now,
}
catalog.setdefault("folders", []).append(folder)
return {"catalog": self._save_catalog(catalog), "folder": dict(folder)}
def update_folder(self, project: Any, folder_id: Any,
changes: Any) -> dict[str, Any]:
if not isinstance(changes, dict):
raise ValueError("Asset folder changes must be a JSON object.")
catalog = self.load(project)
wanted = str(folder_id or "")
folder = next((item for item in catalog.get("folders", [])
if str(item.get("id") or "") == wanted), None)
if folder is None:
raise FileNotFoundError("Asset folder %s was not found." % wanted)
if "name" in changes:
name = _safe_folder_name(changes["name"])
if any(str(item.get("name") or "").casefold() == name.casefold()
and str(item.get("id") or "") != wanted
for item in catalog.get("folders", [])):
raise ValueError("An asset folder named %r already exists." % name)
folder["name"] = name
if "color" in changes:
folder["color"] = str(changes["color"] or "")[:32]
folder["updated_at"] = _utc_now()
return {"catalog": self._save_catalog(catalog), "folder": dict(folder)}
def delete_folder(self, project: Any, folder_id: Any) -> dict[str, Any]:
catalog = self.load(project)
wanted = str(folder_id or "")
folder = next((item for item in catalog.get("folders", [])
if str(item.get("id") or "") == wanted), None)
if folder is None:
raise FileNotFoundError("Asset folder %s was not found." % wanted)
catalog["folders"] = [
item for item in catalog.get("folders", [])
if str(item.get("id") or "") != wanted]
moved = 0
for asset in catalog.get("assets", []):
if str(asset.get("folder_id") or "") == wanted:
asset["folder_id"] = ""
asset["updated_at"] = _utc_now()
moved += 1
return {
"catalog": self._save_catalog(catalog),
"folder": dict(folder),
"assets_unfiled": moved,
}
def reorder_folders(self, project: Any, folder_ids: Any) -> dict[str, Any]:
if not isinstance(folder_ids, list):
raise ValueError("Folder order must be a JSON list of folder IDs.")
catalog = self.load(project)
current = [str(item.get("id") or "")
for item in catalog.get("folders", [])]
requested = [str(item or "") for item in folder_ids]
if (len(requested) != len(set(requested))
or set(requested) != set(current)):
raise ValueError(
"Folder order must contain every current folder ID exactly once.")
by_id = {str(item.get("id") or ""): item
for item in catalog.get("folders", [])}
catalog["folders"] = [by_id[item] for item in requested]
return {"catalog": self._save_catalog(catalog)}
def duplicate(self, project: Any, asset_id: Any, *, tag: Any = "",
folder_id: Any = None) -> dict[str, Any]:
"""Create a second catalog card without copying its media bytes."""
catalog = self.load(project)
wanted = str(asset_id or "")
source = next((item for item in catalog["assets"]
if str(item.get("id") or "") == wanted), None)
if source is None:
raise FileNotFoundError("Project asset %s was not found." % wanted)
target_folder = (str(source.get("folder_id") or "")
if folder_id is None else str(folder_id or ""))
known_folders = {str(item.get("id") or "")
for item in catalog.get("folders", [])}
if target_folder and target_folder not in known_folders:
raise FileNotFoundError("Asset folder %s was not found." % target_folder)
now = _utc_now()
clone = dict(source)
clone.update({
"id": uuid.uuid4().hex,
"tag": _unique_tag(
catalog, tag or "%s_copy" % source.get("tag", "asset"),
"%s_copy" % source.get("tag", "asset")),
"folder_id": target_folder,
"parent_asset_id": wanted,
"source_kind": "catalog_duplicate",
"created_at": now,
"updated_at": now,
})
if source.get("role") == "source_track":
clone["enabled"] = False
clone["options"] = dict(source.get("options") or {})
if clone["options"].get("audio_tracks") is not None:
clone["options"]["audio_tracks"] = {
role: clone["id"] if value == wanted else value
for role, value in clone["options"]["audio_tracks"].items()}
clone["metadata"] = dict(source.get("metadata") or {})
catalog["assets"].append(clone)
return {"catalog": self._save_catalog(catalog), "asset": dict(clone)}
def operation_asset(self, project: Any, operation_id: Any) -> dict[str, Any] | None:
wanted = str(operation_id or "")[:128]
if not wanted:
return None
catalog = self.load(project)
existing = next((item for item in catalog["assets"]
if str((item.get("transform") or {}).get(
"operation_id") or "") == wanted), None)
if existing is None:
return None
return {"catalog": catalog, "asset": dict(existing), "reused": True}
def prepare_image_crop(self, project: Any, asset_id: Any,
crop: Any, target: Any) -> tuple[dict[str, Any], Any, dict[str, int]]:
if Image is None or ImageOps is None:
raise RuntimeError("Pillow is required for project image variants.")
entry, path = self.asset(project, asset_id)
if entry.get("kind") != "image":
raise ValueError("Only image assets can create cropped variants.")
with Image.open(path) as opened:
oriented = ImageOps.exif_transpose(opened).copy()
geometry = _image_operation_geometry(oriented, crop, target)
x, y, width, height, target_width, target_height = geometry
cropped = oriented.crop((x, y, x + width, y + height))
values = {
"x": x, "y": y, "width": width, "height": height,
"target_width": target_width, "target_height": target_height,
"source_width": int(oriented.width),
"source_height": int(oriented.height),
}
return entry, cropped, values
def register_derived_image(
self, project: Any, parent_asset_id: Any, rendered_path: Any, *,
tag: Any = "", folder_id: Any = None,
transform: dict[str, Any] | None = None,
operation_id: Any = "") -> dict[str, Any]:
parent, _path = self.asset(project, parent_asset_id)
if parent.get("kind") != "image":
raise ValueError("Only image assets can own image variants.")
catalog = self.load(project)
operation_id = str(operation_id or "")[:128]
if operation_id:
existing = next((item for item in catalog["assets"]
if str((item.get("transform") or {}).get(
"operation_id") or "") == operation_id), None)
if existing is not None:
return {"catalog": catalog, "asset": dict(existing), "reused": True}
target_folder = (str(parent.get("folder_id") or "")
if folder_id is None else str(folder_id or ""))
result = self.import_file(
project, rendered_path,
role=parent.get("role"),
tag=tag or "%s_variant" % parent.get("tag", "asset"),
original_name="%s_variant.png" % parent.get("tag", "asset"),
source_kind="derived_image",
options=dict(parent.get("options") or {}))
derived_id = str(result["asset"]["id"])
catalog = result["catalog"]
derived = next(item for item in catalog["assets"]
if str(item.get("id") or "") == derived_id)
derived["folder_id"] = target_folder
derived["parent_asset_id"] = str(parent_asset_id or "")
lineage = dict(transform or {})
if operation_id:
lineage["operation_id"] = operation_id
derived["transform"] = lineage
derived["updated_at"] = _utc_now()
saved = self._save_catalog(catalog)
return {"catalog": saved, "asset": dict(derived), "reused": False}
def derive_image(
self, project: Any, asset_id: Any, *, crop: Any, target: Any,
resample: Any = "lanczos", tag: Any = "", folder_id: Any = None,
operation_id: Any = "") -> dict[str, Any]:
existing = self.operation_asset(project, operation_id)
if existing is not None:
return existing
_entry, cropped, geometry = self.prepare_image_crop(
project, asset_id, crop, target)
resample_name, resample_mode = _image_resampling(resample)
if "A" in cropped.getbands() or "transparency" in cropped.info:
cropped = cropped.convert("RGBA")
output_size = (geometry["target_width"], geometry["target_height"])
if cropped.size != output_size:
cropped = cropped.resize(output_size, resample=resample_mode)
if cropped.mode not in ("RGB", "RGBA", "L", "LA"):
cropped = cropped.convert("RGBA" if "A" in cropped.getbands() else "RGB")
temporary = self.upload_path(project, "%s_variant.png" % asset_id)
try:
cropped.save(temporary, format="PNG")
return self.register_derived_image(
project, asset_id, temporary, tag=tag,
folder_id=folder_id,
operation_id=operation_id,
transform={
"kind": "crop_resize",
"crop": {key: geometry[key]
for key in ("x", "y", "width", "height")},
"target": {
"width": geometry["target_width"],
"height": geometry["target_height"],
},
"source": {
"width": geometry["source_width"],
"height": geometry["source_height"],
},
"resample": resample_name,
})
finally:
try:
os.unlink(temporary)
except FileNotFoundError:
pass
def update(self, project: Any, asset_id: Any, changes: Any) -> dict[str, Any]:
if not isinstance(changes, dict):
raise ValueError("Asset changes must be a JSON object.")
catalog = self.load(project)
wanted = str(asset_id or "")
entry = next((item for item in catalog["assets"]
if str(item.get("id") or "") == wanted), None)
if entry is None:
raise FileNotFoundError("Project asset %s was not found." % wanted)
kind = str(entry["kind"])
if "role" in changes:
entry["role"] = _role_for_kind(kind, changes["role"])
if "tag" in changes:
tag = _safe_tag(changes["tag"], entry.get("tag") or "asset")
if any(str(item.get("tag") or "") == tag
and str(item.get("id") or "") != wanted
and bool(item.get("enabled", True))
for item in catalog["assets"]):
raise ValueError("Another enabled project asset already uses @%s." % tag)
entry["tag"] = tag
if "enabled" in changes:
entry["enabled"] = bool(changes["enabled"])
if "folder_id" in changes:
folder_id = str(changes["folder_id"] or "")
known_folders = {str(item.get("id") or "")
for item in catalog.get("folders", [])}
if folder_id and folder_id not in known_folders:
raise FileNotFoundError(
"Asset folder %s was not found." % folder_id)
entry["folder_id"] = folder_id
if "lyrics" in changes:
if kind != "audio":
raise ValueError("Lyrics can only be attached to audio assets.")
lyrics = str(changes["lyrics"] or "").replace(
"\r\n", "\n").replace("\r", "\n")
if len(lyrics) > MAX_ASSET_LYRICS_CHARACTERS:
raise ValueError(
"Asset lyrics cannot exceed %d characters." %
MAX_ASSET_LYRICS_CHARACTERS)
if lyrics:
entry["lyrics"] = lyrics
else:
entry.pop("lyrics", None)
if "options" in changes:
if not isinstance(changes["options"], dict):
raise ValueError("Asset options must be a JSON object.")
options = dict(entry.get("options") or {})
options.update(changes["options"])
entry["options"] = options
if bool(entry.get("enabled", True)):
if any(str(item.get("tag") or "") == str(entry.get("tag") or "")
and str(item.get("id") or "") != wanted
and bool(item.get("enabled", True))
for item in catalog["assets"]):
raise ValueError(
"Another enabled project asset already uses @%s." %
entry.get("tag"))
if (entry.get("role") == "source_track" and any(
item.get("role") == "source_track"
and str(item.get("id") or "") != wanted
and bool(item.get("enabled", True))
for item in catalog["assets"])):
raise ValueError(
"This project already has an enabled Source track.")
entry["updated_at"] = _utc_now()
catalog = self._save_catalog(catalog)
return {"catalog": catalog, "asset": dict(entry)}
def reorder(self, project: Any, asset_ids: Any) -> dict[str, Any]:
"""Persist one exact permutation of the project's asset cards."""
if not isinstance(asset_ids, list):
raise ValueError("Asset order must be a JSON list of asset IDs.")
catalog = self.load(project)
current_ids = [str(item.get("id") or "")
for item in catalog["assets"]]
requested = [str(item or "") for item in asset_ids]
if (len(requested) != len(set(requested))
or set(requested) != set(current_ids)):
raise ValueError(
"Asset order must contain every current asset ID exactly once.")
by_id = {
str(item.get("id") or ""): item for item in catalog["assets"]}
catalog["assets"] = [by_id[asset_id] for asset_id in requested]
return {"catalog": self._save_catalog(catalog)}
def delete(self, project: Any, asset_id: Any) -> dict[str, Any]:
"""Remove a catalog asset and its project-owned media copies."""
catalog = self.load(project)
wanted = str(asset_id or "")
entry = next((item for item in catalog["assets"]
if str(item.get("id") or "") == wanted), None)
if entry is None:
raise FileNotFoundError("Project asset %s was not found." % wanted)
removed = dict(entry)
for owner in catalog["assets"]:
bindings = (owner.get("options") or {}).get("audio_tracks") or {}
if str(owner.get("id") or "") != wanted and wanted in bindings.values():
raise ValueError(
"This audio is part of %s's track group. Detach it there "
"before deleting it." % (owner.get("tag") or owner["id"]))
catalog["assets"] = [
item for item in catalog["assets"]
if str(item.get("id") or "") != wanted]
remaining_paths = {
str(item.get("relative_path") or "")
for item in catalog["assets"]}
saved = self._save_catalog(catalog)
deleted_files = 0
relative = str(removed.get("relative_path") or "")
if relative and relative not in remaining_paths:
project_dir, name = self._project_dir(project)
backup_dir, _name = self._backup_dir(name)
for root in (project_dir, backup_dir):
path = os.path.realpath(os.path.join(root, relative))
if not _inside(root, path):
raise ValueError("Project asset media path escapes its store.")
try:
os.unlink(path)
deleted_files += 1
except FileNotFoundError:
pass
project_dir, _name = self._project_dir(project)
preview_dir = os.path.join(project_dir, "previews")
preview_prefix = wanted + "_"
if os.path.isdir(preview_dir):
with os.scandir(preview_dir) as previews:
for preview in previews:
if (preview.is_file(follow_symlinks=False)
and preview.name.startswith(preview_prefix)):
os.unlink(preview.path)
deleted_files += 1
return {
"catalog": saved,
"asset": removed,
"deleted_files": deleted_files,
}
def input_media(self, query: Any = "") -> list[dict[str, Any]]:
needle = str(query or "").strip().lower()
result = []
if not os.path.isdir(self.input_root):
return result
for root, directories, files in os.walk(self.input_root):
# Walk normal input subfolders recursively, but omit storage that
# would either duplicate this catalog or flood the picker with
# transient clipboard/Clipspace images.
directories[:] = [
name for name in directories
if name.casefold() not in INPUT_BROWSER_EXCLUDED_DIRECTORIES
]
for filename in files:
suffix = os.path.splitext(filename)[1].lower()
if suffix not in ALL_MEDIA_EXTENSIONS:
continue
path = os.path.join(root, filename)
relative = os.path.relpath(path, self.input_root).replace(os.sep, "/")
if needle and needle not in relative.lower():
continue
try:
stat = os.stat(path)
except OSError:
continue
result.append({
"path": relative,
"kind": _media_kind(path),
"size": int(stat.st_size),
"modified": float(stat.st_mtime),
})
if len(result) >= MAX_INPUT_RESULTS:
break
if len(result) >= MAX_INPUT_RESULTS:
break
return sorted(result, key=lambda item: item["path"].lower())
def input_path(self, relative: Any) -> str:
value = str(relative or "").strip()
path = os.path.realpath(os.path.join(self.input_root, value))
if not value or not _inside(self.input_root, path) or not os.path.isfile(path):
raise FileNotFoundError("ComfyUI input asset was not found: %s" % value)
return path
def project_catalogs(self, query: Any = "") -> list[dict[str, Any]]:
"""List existing live Carousel projects, including empty catalogs."""
needle = str(query or "").strip().lower()
result = []
if not os.path.isdir(self.projects_root):
return result
with os.scandir(self.projects_root) as projects:
for project in projects:
if (not project.is_dir(follow_symlinks=False)
or needle and needle not in project.name.lower()
or not os.path.isfile(os.path.join(
project.path, "catalog.json"))):
continue
try:
catalog = self.load(project.name)
except (OSError, TypeError, ValueError, json.JSONDecodeError):
continue
result.append({
"project": project.name,
"asset_count": len(catalog.get("assets", [])),
"unassigned_count": len(
catalog.get("reference_slots", [])),
"folder_count": len(catalog.get("folders", [])),
"updated_at": str(catalog.get("updated_at") or ""),
"revision": str(catalog.get("revision") or ""),
})
result.sort(key=lambda item: item["project"].lower())
result.sort(key=lambda item: item["updated_at"], reverse=True)
return result[:MAX_INPUT_RESULTS]
def projects(self, query: Any = "", *, exclude_project: Any = "") -> list[dict[str, Any]]:
"""List live Carousel catalogs without exposing arbitrary input files."""
needle = str(query or "").strip().lower()
excluded = (_safe_project(exclude_project)
if str(exclude_project or "").strip() else "")
result = []
remaining = MAX_INPUT_RESULTS
if not os.path.isdir(self.projects_root):
return result
with os.scandir(self.projects_root) as projects:
for project in projects:
if remaining <= 0:
break
if (not project.is_dir(follow_symlinks=False)
or project.name == excluded):
continue
try:
catalog = self.load(project.name)
except (OSError, TypeError, ValueError, json.JSONDecodeError):
continue
assets = []
for raw in catalog.get("assets", []):
if not isinstance(raw, dict):
continue
searchable = " ".join((
project.name,
str(raw.get("tag") or ""),
str(raw.get("original_name") or ""),
str(raw.get("role") or ""),
)).lower()
if needle and needle not in searchable:
continue
try:
self._asset_path(project.name, raw)
except (OSError, TypeError, ValueError):
continue
assets.append(dict(raw))
remaining -= 1
if remaining <= 0:
break
if assets:
result.append({
"project": project.name,
"revision": str(catalog.get("revision") or ""),
"assets": assets,
})
return sorted(result, key=lambda item: item["project"].lower())
def import_project_asset(
self, project: Any, source_project: Any, asset_id: Any, *,
slot_id: Any = "") -> dict[str, Any]:
"""Copy one asset from another live Carousel into this project."""
target_name = _safe_project(project)
source_name = _safe_project(source_project)
if target_name == source_name:
raise ValueError(
"Choose another Run. Use Duplicate for an asset already in "
"this Carousel.")
source_entry, source_path = self.asset(source_name, asset_id)
wanted_slot = str(slot_id or "")
options = dict(source_entry.get("options") or {})
bindings = audio_track_bindings(
options.pop("audio_tracks", None), self.load(source_name)["assets"])
# Resolve every dependency before copying anything. Track bindings are
# project-local IDs; they cannot be copied verbatim to another Run.
dependencies = {
value: self.asset(source_name, value)
for value in (bindings or {}).values()
if value and value != str(source_entry["id"])} if not wanted_slot else {}
if wanted_slot:
result = self.bind_reference_slot(
target_name, wanted_slot, source_path,
original_name=source_entry.get("original_name", ""),
source_kind="project")
else:
result = self.import_file(
target_name, source_path,
role=source_entry.get("role", ""),
tag=source_entry.get("tag", ""),
original_name=source_entry.get("original_name", ""),
source_kind="project",
options=options)
if bindings and not wanted_slot:
mapped = {str(source_entry["id"]): result["asset"]["id"]}
for value, (entry, path) in dependencies.items():
track_options = dict(entry.get("options") or {})
track_options.pop("audio_tracks", None)
imported = self.import_file(
target_name, path, role="audio_reference",
tag=entry.get("tag", ""),
original_name=entry.get("original_name", ""),
source_kind="project", options=track_options)
mapped[value] = imported["asset"]["id"]
self.update(target_name, mapped[value], {
"enabled": False, "lyrics": str(entry.get("lyrics") or "")})
result = self.update(target_name, result["asset"]["id"], {
"options": {"audio_tracks": {
role: mapped[value] if value else ""
for role, value in bindings.items()}}})
lyrics = str(source_entry.get("lyrics") or "")
if lyrics and result.get("asset", {}).get("kind") == "audio":
bound_slot_id = result.get("bound_slot_id")
result = self.update(
target_name, result["asset"]["id"], {"lyrics": lyrics})
if bound_slot_id:
result["bound_slot_id"] = bound_slot_id
result["source_project"] = source_name
result["source_asset_id"] = str(source_entry.get("id") or "")
return result
def backups(self) -> list[dict[str, Any]]:
result = []
if not os.path.isdir(self.chains_root):
return result
with os.scandir(self.chains_root) as runs:
for run in runs:
if not run.is_dir(follow_symlinks=False):
continue
path = os.path.join(run.path, "project_assets", "catalog.json")
if not os.path.isfile(path):
continue
try:
with open(path, "r", encoding="utf-8") as handle:
catalog = json.load(handle)
assets = catalog.get("assets") if isinstance(catalog, dict) else None
if not isinstance(assets, list):
continue
result.append({
"run_name": run.name,
"revision": str(catalog.get("revision") or ""),
"assets": [dict(item) for item in assets if isinstance(item, dict)],
})
except (OSError, ValueError, json.JSONDecodeError):
continue
return sorted(result, key=lambda item: item["run_name"].lower())
def backup_asset_path(self, run_name: Any, asset_id: Any) -> tuple[dict[str, Any], str]:
backup, name = self._backup_dir(run_name)
path = os.path.join(backup, "catalog.json")
if not os.path.isfile(path):
raise FileNotFoundError("H3 chain %s has no project asset backup." % name)
with open(path, "r", encoding="utf-8") as handle:
catalog = json.load(handle)
entry = next((item for item in catalog.get("assets", [])
if str(item.get("id") or "") == str(asset_id or "")), None)
if entry is None:
raise FileNotFoundError("Backup asset %s was not found." % asset_id)
relative = str(entry.get("relative_path") or "")
source = os.path.realpath(os.path.join(backup, relative))
if not _inside(backup, source) or not os.path.isfile(source):
raise FileNotFoundError("Backup media is missing: %s" % relative)
return dict(entry), source
def _preview_path(self, project: Any, entry: dict[str, Any], suffix: str) -> str:
directory, _name = self._project_dir(project)
return os.path.join(directory, "previews", "%s_%s%s" % (
entry["id"], str(entry.get("sha256") or "")[:12], suffix))
def ensure_poster(self, project: Any, asset_id: Any) -> str:
return self._ensure_still_preview(
project, asset_id, ".jpg", (960, 540), 86)
def ensure_thumbnail(self, project: Any, asset_id: Any) -> str:
"""Return a small cached still used by large carousel collections."""
return self._ensure_still_preview(
project, asset_id, ".thumb.jpg", (320, 180), 78)
def _ensure_still_preview(
self, project: Any, asset_id: Any, suffix: str,
bounds: tuple[int, int], quality: int) -> str:
entry, source = self.asset(project, asset_id)
if entry["kind"] == "audio":
raise ValueError("Audio assets do not have poster frames.")
target = self._preview_path(project, entry, suffix)
os.makedirs(os.path.dirname(target), exist_ok=True)
if os.path.isfile(target) and os.path.getsize(target) > 0:
return target
temporary = "%s.%s.tmp.jpg" % (target, uuid.uuid4().hex)
try:
if entry["kind"] == "image" and Image is not None:
with Image.open(source) as image:
frame = image.convert("RGB")
frame.thumbnail(bounds)
frame.save(
temporary, format="JPEG", quality=quality,
optimize=True)
else:
ffmpeg = shutil.which("ffmpeg")
if ffmpeg:
width, height = bounds
command = [
ffmpeg, "-hide_banner", "-loglevel", "error", "-y",
"-ss", "0", "-i", source, "-frames:v", "1",
"-vf", "scale='min(%d,iw)':'min(%d,ih)':"
"force_original_aspect_ratio=decrease" % (
width, height),
"-q:v", "3", temporary,
]
completed = subprocess.run(
command, stdout=subprocess.DEVNULL,
stderr=subprocess.PIPE, timeout=60, check=False)
if completed.returncode:
raise RuntimeError(completed.stderr.decode(
"utf-8", errors="replace")[-1200:])
elif av is not None and Image is not None:
with av.open(source, mode="r") as container:
video = next(iter(container.streams.video), None)
frame = next(container.decode(video), None) if video else None
if frame is None:
raise ValueError("Video contains no decodable frame.")
image = frame.to_image().convert("RGB")
image.thumbnail(bounds)
image.save(
temporary, format="JPEG", quality=quality)
else:
raise RuntimeError("Video poster generation requires ffmpeg or PyAV/Pillow.")
if not os.path.isfile(temporary) or os.path.getsize(temporary) <= 0:
raise RuntimeError("Preview generator produced an empty poster.")
os.replace(temporary, target)
finally:
try:
os.unlink(temporary)
except FileNotFoundError:
pass
return target
@staticmethod
def _browser_video(entry: dict[str, Any], path: str) -> bool:
suffix = os.path.splitext(path)[1].lower()
codec = str((entry.get("metadata") or {}).get("codec") or "").lower()
return ((suffix in (".mp4", ".m4v", ".mov") and codec in (
"h264", "av1", "hevc")) or
(suffix == ".webm" and codec in ("vp8", "vp9", "av1")))
def ensure_browser_media(self, project: Any, asset_id: Any) -> str:
entry, source = self.asset(project, asset_id)
if entry["kind"] != "video" or self._browser_video(entry, source):
return source
target = self._preview_path(project, entry, ".mp4")
os.makedirs(os.path.dirname(target), exist_ok=True)
if os.path.isfile(target) and os.path.getsize(target) > 0:
return target
ffmpeg = shutil.which("ffmpeg")
if not ffmpeg:
return source
temporary = "%s.%s.tmp.mp4" % (target, uuid.uuid4().hex)
try:
command = [
ffmpeg, "-hide_banner", "-loglevel", "error", "-y",
"-i", source, "-vf", "scale='min(1280,iw)':-2",
"-c:v", "libx264", "-preset", "veryfast", "-crf", "25",
"-pix_fmt", "yuv420p", "-movflags", "+faststart",
"-c:a", "aac", "-b:a", "128k", temporary,
]
completed = subprocess.run(
command, stdout=subprocess.DEVNULL, stderr=subprocess.PIPE,
timeout=max(120, int(float((entry.get("metadata") or {}).get(
"duration_seconds") or 0) * 8)), check=False)
if completed.returncode:
raise RuntimeError(completed.stderr.decode(
"utf-8", errors="replace")[-1600:])
if not os.path.isfile(temporary) or os.path.getsize(temporary) <= 0:
raise RuntimeError("Preview proxy generator produced an empty video.")
os.replace(temporary, target)
finally:
try:
os.unlink(temporary)
except FileNotFoundError:
pass
return target
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