605 lines
23 KiB
Python
605 lines
23 KiB
Python
"""视频复刻:参考视频 + 商品图/人物图 → Seedance 换商品或换角色。
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不新建任务类型、不接检测/抠图。提交仍走 submit_free_video,只把
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feature=video_replace 和 replace_mode 写进 payload,提示词由后端写死。
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真人参考必须先送火山素材库审核,过审后用 asset:// 生成;审核失败不扣费。
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"""
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from __future__ import annotations
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import logging
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import uuid
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from decimal import Decimal
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from django.conf import settings
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from django.db import transaction
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from django.db.models import Q
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from apps.assets.models import Asset, Model
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from apps.billing.models import CreditAccount
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from apps.billing.pricing import quote_video_estimate, video_reserve_amount
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from apps.products.models import Product
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from .free_video import (
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FREE_VIDEO_MODELS,
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HIGH_RES_MODEL,
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IN_FLIGHT_STATUSES,
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RATIOS,
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RESOLUTIONS,
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_reap_stale_free_video_tasks,
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serialize_free_video_task,
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start_pending_free_video,
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submit_free_video,
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)
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from .media_probe import REF_DURATION_MAX
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from .models import AITask, ModelConfig
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logger = logging.getLogger(__name__)
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FEATURE = "video_replace"
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REPLACE_MODES = {"product", "character"}
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MAX_IMAGES = 9
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LEGACY_PROMPT_PREFIX = "[视频复刻]"
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REVIEW_UNAVAILABLE = "素材审核服务暂不可用，请稍后重试"
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REVIEW_FAILED = "参考素材未通过真人合规审核，请更换视频或图片后重试"
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REVIEW_SUBMIT_FAILED = "素材提交审核失败，请稍后重试"
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PRODUCT_PROMPT = (
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"使用@参考视频作为镜头、节奏与口播氛围基准，"
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"将画面中需要替换的原商品完整替换为@目标商品的外观。"
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"保留参考视频的人物、场景、镜头运动、剪辑节奏与口播氛围，"
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"商品外观、材质、包装必须与参考图一致，不要改变原片构图和人物表演。"
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)
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CHARACTER_PROMPT = (
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"使用@参考视频作为镜头、节奏与口播氛围基准，"
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"将画面中需要替换的原人物完整替换为@目标角色。"
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"保留参考视频的商品、场景、镜头运动、剪辑节奏与口播氛围，"
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"角色五官、发型、体态必须与参考图一致，不要改变原片构图和商品展示。"
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)
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def is_video_replace_task(task) -> bool:
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payload = task.request_payload or {}
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if payload.get("feature") == FEATURE:
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return True
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return str(payload.get("prompt") or "").startswith(LEGACY_PROMPT_PREFIX)
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def video_replace_q() -> Q:
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return Q(request_payload__feature=FEATURE) | Q(request_payload__prompt__startswith=LEGACY_PROMPT_PREFIX)
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def serialize_video_replace_task(task, *, include_deleted_assets: bool = False) -> dict:
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data = serialize_free_video_task(task, include_deleted_assets=include_deleted_assets)
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payload = task.request_payload or {}
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replace_mode = payload.get("replace_mode") or _legacy_replace_mode(payload.get("prompt") or "")
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reviewing = task.status == AITask.Status.CREATED and bool(payload.get("review_pending"))
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data.update({
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"feature": FEATURE,
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"replace_mode": replace_mode,
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"subject_name": payload.get("subject_name") or "",
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"subject_source": payload.get("subject_source") or "",
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"product_id": payload.get("product_id") or "",
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"model_id": payload.get("model_id") or "",
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"review_stage": "reviewing" if reviewing else "",
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})
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return data
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def submit_video_replace(*, team, user, params: dict):
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"""校验素材 → 送审 → 已过审则直接生成,否则建 CREATED 任务等绿盾。失败抛 ValueError。"""
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replace_mode = str(params.get("replace_mode") or "").strip()
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if replace_mode not in REPLACE_MODES:
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raise ValueError("请选择替换商品或替换角色")
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product_id = _optional_uuid(params.get("product_id"), "商品")
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model_id = _optional_uuid(params.get("model_id"), "角色")
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image_ids = _uuid_list(params.get("image_asset_ids"), "参考图")
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has_product = product_id is not None
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has_model = model_id is not None
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has_temp = bool(image_ids)
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if replace_mode == "product":
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if has_model:
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raise ValueError("商品复刻请选择商品，不要同时选择角色")
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if has_product and has_temp:
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raise ValueError("请从商品库选择，或临时上传商品图，不要混用")
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if not has_product and not has_temp:
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raise ValueError("请选择商品或上传商品参考图")
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else:
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if has_product:
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raise ValueError("角色复刻请选择角色，不要同时选择商品")
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if has_model and has_temp:
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raise ValueError("请从人物库选择，或临时上传角色图，不要混用")
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if not has_model and not has_temp:
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raise ValueError("请选择角色或上传角色参考图")
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video = _team_asset(team, params.get("video_asset_id"), kind=Asset.Type.VIDEO, label="参考视频")
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video_seconds = _asset_duration_seconds(video)
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if video_seconds > REF_DURATION_MAX:
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raise ValueError("参考视频不能超过 15 秒，请剪短后重试")
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if has_product:
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subject_name, image_refs, subject_source = _product_library_refs(team, product_id)
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elif has_model:
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subject_name, image_refs, subject_source = _character_library_refs(team, model_id)
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else:
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noun = "商品" if replace_mode == "product" else "角色"
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subject_name, image_refs, subject_source = _temporary_image_refs(team, image_ids, noun=noun)
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prompt = PRODUCT_PROMPT if replace_mode == "product" else CHARACTER_PROMPT
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duration = _output_duration(params.get("duration"), video_seconds)
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references = [
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_owned_ref(video, kind="video", role="reference_video", label="参考视频"),
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*image_refs,
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]
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review_state = _ensure_replace_refs_reviewed(team, references)
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if review_state == "failed":
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raise ValueError(REVIEW_FAILED)
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references = _refresh_replace_refs(team, references)
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extra = {
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"replace_mode": replace_mode,
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"subject_name": subject_name,
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"subject_source": subject_source,
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"product_id": str(product_id) if product_id else "",
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"model_id": str(model_id) if model_id else "",
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"review_pending": review_state != "ready",
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}
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submit_params = {
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"prompt": prompt,
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"mode": "universal",
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"model": str(params.get("model") or HIGH_RES_MODEL),
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"aspect_ratio": str(params.get("aspect_ratio") or "9:16"),
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"resolution": str(params.get("resolution") or "720p"),
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"duration": duration,
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"seed": params.get("seed", -1),
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"generate_audio": True,
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"references": references,
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"feature": FEATURE,
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"extra_payload": extra,
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}
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if review_state == "ready":
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_assert_replace_refs_ready(references)
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return submit_free_video(team=team, user=user, params=submit_params)
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return _create_reviewing_task(team=team, user=user, params=submit_params)
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def advance_video_replace(task):
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"""轮询审核中的复刻任务:失败则结束(不扣费),过审则预留积分并提交火山。"""
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if not is_video_replace_task(task):
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return task
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if task.status != AITask.Status.CREATED:
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from .free_video import finalize_free_video
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return finalize_free_video(task=task)
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payload = task.request_payload or {}
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references = list(payload.get("references") or [])
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try:
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state = _ensure_replace_refs_reviewed(task.team, references)
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except ValueError as exc:
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return _fail_reviewing_task(task, str(exc))
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if state == "failed":
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return _fail_reviewing_task(task, REVIEW_FAILED)
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if state != "ready":
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return task
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refreshed = _refresh_replace_refs(task.team, references)
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try:
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_assert_replace_refs_ready(refreshed)
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except ValueError as exc:
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return _fail_reviewing_task(task, str(exc))
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with transaction.atomic():
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locked = AITask.objects.select_for_update().get(id=task.id)
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if locked.status != AITask.Status.CREATED:
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return locked
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next_payload = dict(locked.request_payload or {})
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next_payload["references"] = refreshed
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next_payload["review_pending"] = False
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locked.request_payload = next_payload
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locked.save(update_fields=["request_payload", "updated_at"])
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task = locked
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return start_pending_free_video(task)
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def _legacy_replace_mode(prompt: str) -> str:
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return "character" if prompt.startswith("[视频复刻·角色]") else "product"
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def _fail_reviewing_task(task, message: str):
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from .free_video import _fail_pending_free_video
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return _fail_pending_free_video(task, message)
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def _enqueue_replace_review_poll(task):
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try:
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from .tasks import poll_free_video_task
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poll_free_video_task.apply_async(args=[str(task.id), 0], countdown=8)
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except Exception: # noqa: BLE001
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logger.error("video replace review poll enqueue failed; relying on client polling", exc_info=True)
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def _create_reviewing_task(*, team, user, params: dict):
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"""审核未完成:只建 CREATED 任务,不预留积分。"""
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model_name = str(params.get("model") or HIGH_RES_MODEL)
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aspect_ratio = str(params.get("aspect_ratio") or "9:16")
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resolution = str(params.get("resolution") or "720p")
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try:
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duration = int(params.get("duration") or 5)
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except (TypeError, ValueError):
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raise ValueError("时长参数无效")
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if model_name not in FREE_VIDEO_MODELS:
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raise ValueError("模型无效")
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if aspect_ratio not in RATIOS:
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raise ValueError("画面比例无效")
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if resolution not in RESOLUTIONS:
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raise ValueError("分辨率无效")
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if not 4 <= duration <= 15:
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raise ValueError("视频时长需在 4-15 秒之间")
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model_config = (
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ModelConfig.objects.select_related("provider")
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.filter(name=model_name, capability=ModelConfig.Capability.VIDEO, status=ModelConfig.Status.ACTIVE)
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.first()
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)
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if model_config is None:
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raise ValueError("视频模型未配置，请联系管理员")
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_reap_stale_free_video_tasks(team=team)
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max_concurrent = int(getattr(settings, "FREE_VIDEO_MAX_CONCURRENT", 3))
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in_flight = AITask.objects.filter(
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team=team, task_type=AITask.Type.FREE_VIDEO, status__in=IN_FLIGHT_STATUSES
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).count()
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if in_flight >= max_concurrent:
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raise ValueError(f"当前有 {in_flight} 个视频任务进行中（上限 {max_concurrent}），请等待完成后再提交")
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references = params.get("references") or []
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tokens, quote = quote_video_estimate(
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model_config,
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aspect_ratio=aspect_ratio,
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resolution=resolution,
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duration=duration,
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references=references,
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team=team,
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)
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reserve_amount = video_reserve_amount(quote.points)
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account = CreditAccount.objects.filter(team=team).first()
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available = (account.balance - account.reserved_balance) if account else Decimal("0")
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if available < reserve_amount:
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raise ValueError("团队余额不足，请充值后重试")
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try:
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seed = int(params.get("seed") if params.get("seed") is not None else -1)
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except (TypeError, ValueError):
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seed = -1
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extra = params.get("extra_payload") if isinstance(params.get("extra_payload"), dict) else {}
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request_payload = {
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"feature": FEATURE,
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"mode": "universal",
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"model": model_name,
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"endpoint": model_config.endpoint,
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"prompt": params.get("prompt") or "",
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"api_prompt": "",
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"aspect_ratio": aspect_ratio,
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"resolution": resolution,
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"duration": duration,
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"seed": seed,
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"generate_audio": True,
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"search_mode": "off",
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"estimated_tokens": tokens,
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"price_multiplier": quote.meta.get("price_multiplier", "1"),
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"points_per_yuan_snapshot": quote.meta.get("rate", ""),
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"references": references,
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"model_routing_v1": True,
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"review_pending": True,
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}
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for key, value in extra.items():
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if key in request_payload or value in (None, ""):
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continue
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request_payload[key] = value
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task = AITask.objects.create(
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team=team,
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created_by=user,
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project=None,
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task_type=AITask.Type.FREE_VIDEO,
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status=AITask.Status.CREATED,
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model_config=model_config,
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idempotency_key=f"free_video:{team.id}:{uuid.uuid4()}",
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request_payload=request_payload,
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estimated_cost=quote.points,
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base_cost=Decimal("0"),
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)
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_enqueue_replace_review_poll(task)
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return task
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def _replace_ref_assets(team, references: list) -> list[tuple[dict, Asset]]:
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out = []
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seen = set()
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for ref in references or []:
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raw_id = ref.get("asset_id")
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if not raw_id:
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continue
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try:
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parsed = uuid.UUID(str(raw_id))
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except (TypeError, ValueError):
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continue
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if parsed in seen:
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continue
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seen.add(parsed)
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asset = _load_replace_asset(team, parsed, ref.get("label") or "参考素材")
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out.append((ref, asset))
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return out
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def _load_replace_asset(team, asset_id: uuid.UUID, label: str) -> Asset:
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asset = Asset.objects.filter(id=asset_id, is_deleted=False, purged_at__isnull=True).first()
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if asset is None:
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raise ValueError(f"{label}不存在或已被删除")
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if asset.team_id == team.id:
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return asset
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if Model.objects.filter(Q(is_official=True), Q(portrait_asset=asset) | Q(triview_asset=asset)).exists():
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return asset
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raise ValueError(f"{label}不存在或已被删除")
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def _ensure_replace_refs_reviewed(team, references: list) -> str:
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"""送审/轮询全部参考素材。返回 ready / pending / failed;审核未配置且无 remote_id 抛错。"""
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from apps.assets import assets_client
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from apps.assets.review import poll_asset_review, submit_asset_for_review
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pairs = _replace_ref_assets(team, references)
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if not pairs:
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raise ValueError("请先上传参考视频")
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states = []
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for ref, asset in pairs:
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label = ref.get("label") or asset.name or "参考素材"
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if asset.review_status == "active" and asset.review_remote_id:
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states.append("ready")
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continue
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if not assets_client.is_enabled():
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raise ValueError(REVIEW_UNAVAILABLE)
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if asset.review_status == "processing" and asset.review_remote_id:
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poll_asset_review(asset)
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asset.refresh_from_db(fields=["review_status", "review_remote_id", "review_error"])
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elif asset.review_status != "active" or not asset.review_remote_id:
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ok = submit_asset_for_review(asset, force=True)
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asset.refresh_from_db(fields=["review_status", "review_remote_id", "review_error"])
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if not ok and not asset.review_remote_id:
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raise ValueError(f"「{label}」{REVIEW_SUBMIT_FAILED}")
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if asset.review_status == "processing" and asset.review_remote_id:
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poll_asset_review(asset)
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asset.refresh_from_db(fields=["review_status", "review_remote_id", "review_error"])
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if asset.review_status == "active" and asset.review_remote_id:
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states.append("ready")
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elif asset.review_status == "failed":
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states.append("failed")
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else:
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states.append("pending")
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if any(state == "failed" for state in states):
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return "failed"
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if all(state == "ready" for state in states):
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return "ready"
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return "pending"
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def _refresh_replace_refs(team, references: list) -> list:
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"""同一团队走 source=asset;官方跨团队素材把过审 id 写成 resolved_url=asset://。"""
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out = []
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for ref in references or []:
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item = dict(ref)
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raw_id = item.get("asset_id")
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if not raw_id:
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out.append(item)
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continue
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try:
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parsed = uuid.UUID(str(raw_id))
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except (TypeError, ValueError):
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out.append(item)
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continue
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try:
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asset = _load_replace_asset(team, parsed, item.get("label") or "参考素材")
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except ValueError:
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out.append(item)
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continue
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if asset.team_id == team.id:
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item["source"] = "asset"
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item.pop("resolved_url", None)
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elif asset.review_remote_id:
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item["source"] = "upload"
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item["resolved_url"] = f"asset://{asset.review_remote_id}"
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out.append(item)
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return out
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def _assert_replace_refs_ready(references: list) -> None:
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missing = []
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for ref in references or []:
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raw_id = ref.get("asset_id")
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if not raw_id:
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continue
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try:
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parsed = uuid.UUID(str(raw_id))
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except (TypeError, ValueError):
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continue
|
||
asset = Asset.objects.filter(id=parsed).first()
|
||
if asset is None or not asset.review_remote_id or asset.review_status != "active":
|
||
missing.append(ref.get("label") or "参考素材")
|
||
if missing:
|
||
raise ValueError("素材尚未完成合规审核，请稍后再试")
|
||
|
||
|
||
def _optional_uuid(value, label: str):
|
||
text = str(value or "").strip()
|
||
if not text:
|
||
return None
|
||
try:
|
||
return uuid.UUID(text)
|
||
except (TypeError, ValueError) as exc:
|
||
raise ValueError(f"{label}无效") from exc
|
||
|
||
|
||
def _uuid_list(value, label: str) -> list:
|
||
if value in (None, ""):
|
||
return []
|
||
if not isinstance(value, (list, tuple)):
|
||
raise ValueError(f"{label}格式无效")
|
||
if len(value) > MAX_IMAGES:
|
||
raise ValueError(f"{label}最多 {MAX_IMAGES} 张")
|
||
seen = set()
|
||
out = []
|
||
for item in value:
|
||
parsed = _optional_uuid(item, label)
|
||
if parsed is None or parsed in seen:
|
||
continue
|
||
seen.add(parsed)
|
||
out.append(parsed)
|
||
return out
|
||
|
||
|
||
def _team_asset(team, asset_id, *, kind: str, label: str) -> Asset:
|
||
parsed = _optional_uuid(asset_id, label)
|
||
if parsed is None:
|
||
raise ValueError(f"请先上传{label}")
|
||
asset = Asset.objects.filter(id=parsed, team=team, is_deleted=False, purged_at__isnull=True).first()
|
||
if asset is None:
|
||
raise ValueError(f"{label}不存在或已被删除")
|
||
if asset.asset_type != kind:
|
||
raise ValueError(f"{label}类型不正确")
|
||
return asset
|
||
|
||
|
||
def _asset_duration_seconds(asset: Asset) -> float:
|
||
primary = asset.files.filter(is_primary=True).first() or asset.files.first()
|
||
if primary is None or not primary.duration_ms:
|
||
return 0.0
|
||
return primary.duration_ms / 1000.0
|
||
|
||
|
||
def _output_duration(requested, video_seconds: float) -> int:
|
||
try:
|
||
value = int(requested) if requested not in (None, "") else 0
|
||
except (TypeError, ValueError):
|
||
value = 0
|
||
if value:
|
||
return min(15, max(4, value))
|
||
if video_seconds:
|
||
return min(15, max(4, int(round(video_seconds))))
|
||
return 15
|
||
|
||
|
||
def _owned_ref(asset: Asset, *, kind: str, role: str, label: str) -> dict:
|
||
from .services import _asset_preview_url
|
||
|
||
url = _asset_preview_url(asset)
|
||
if not url:
|
||
raise ValueError(f"「{label}」没有可用文件")
|
||
ref = {
|
||
"url": url,
|
||
"type": kind,
|
||
"role": role,
|
||
"label": label,
|
||
"source": "asset",
|
||
"asset_id": str(asset.id),
|
||
}
|
||
seconds = _asset_duration_seconds(asset)
|
||
if seconds:
|
||
ref["duration"] = seconds
|
||
return ref
|
||
|
||
|
||
def _library_image_ref(asset: Asset, *, team, label: str) -> dict:
|
||
from .services import _asset_preview_url, _seedance_ref_url
|
||
|
||
if asset.team_id == team.id and not asset.is_deleted:
|
||
return {
|
||
"url": _asset_preview_url(asset) or "",
|
||
"type": "image",
|
||
"role": "reference_image",
|
||
"label": label,
|
||
"source": "asset",
|
||
"asset_id": str(asset.id),
|
||
}
|
||
raw = _asset_preview_url(asset)
|
||
url = _seedance_ref_url(raw, asset.review_status, asset.review_remote_id)
|
||
if not url:
|
||
raise ValueError(f"「{label}」没有可用文件")
|
||
return {
|
||
"url": url,
|
||
"type": "image",
|
||
"role": "reference_image",
|
||
"label": label,
|
||
"source": "upload",
|
||
"asset_id": str(asset.id),
|
||
}
|
||
|
||
|
||
def _product_library_refs(team, product_id: uuid.UUID) -> tuple[str, list, str]:
|
||
product = (
|
||
Product.objects.filter(id=product_id, team=team, purged_at__isnull=True, status=Product.Status.ACTIVE)
|
||
.select_related("cover_asset")
|
||
.prefetch_related("images__asset")
|
||
.first()
|
||
)
|
||
if product is None:
|
||
raise ValueError("商品不存在或已被删除")
|
||
assets = []
|
||
seen = set()
|
||
for image in product.images.all():
|
||
asset = image.asset
|
||
if asset is None or asset.id in seen or asset.is_deleted:
|
||
continue
|
||
seen.add(asset.id)
|
||
assets.append(asset)
|
||
if len(assets) >= MAX_IMAGES:
|
||
break
|
||
if not assets and product.cover_asset_id and not product.cover_asset.is_deleted:
|
||
assets.append(product.cover_asset)
|
||
if not assets:
|
||
raise ValueError("这个商品还没有可用图片")
|
||
refs = [_library_image_ref(asset, team=team, label="目标商品" if index == 0 else f"目标商品{index + 1}") for index, asset in enumerate(assets)]
|
||
return product.title, refs, "library"
|
||
|
||
|
||
def _character_library_refs(team, model_id: uuid.UUID) -> tuple[str, list, str]:
|
||
model = (
|
||
Model.objects.filter(Q(team=team) | Q(is_official=True), id=model_id, is_deleted=False, purged_at__isnull=True)
|
||
.select_related("portrait_asset", "triview_asset")
|
||
.first()
|
||
)
|
||
if model is None:
|
||
raise ValueError("角色不存在或已被删除")
|
||
assets = []
|
||
seen = set()
|
||
for asset in (model.portrait_asset, model.triview_asset):
|
||
if asset is None or asset.id in seen or asset.is_deleted:
|
||
continue
|
||
seen.add(asset.id)
|
||
assets.append(asset)
|
||
if len(assets) >= MAX_IMAGES:
|
||
break
|
||
if not assets:
|
||
raise ValueError("这个角色还没有可用图片")
|
||
labels = ["目标角色", "目标角色三视图"]
|
||
refs = [_library_image_ref(asset, team=team, label=labels[index] if index < len(labels) else f"目标角色{index + 1}") for index, asset in enumerate(assets)]
|
||
return model.name, refs, "library"
|
||
|
||
|
||
def _temporary_image_refs(team, image_ids: list, *, noun: str) -> tuple[str, list, str]:
|
||
refs = []
|
||
for index, asset_id in enumerate(image_ids):
|
||
asset = _team_asset(team, asset_id, kind=Asset.Type.IMAGE, label=f"{noun}参考图")
|
||
label = "目标商品" if noun == "商品" else "目标角色"
|
||
if index > 0:
|
||
label = f"{label}{index + 1}"
|
||
refs.append(_owned_ref(asset, kind="image", role="reference_image", label=label))
|
||
fallback = "临时商品素材" if noun == "商品" else "临时角色素材"
|
||
name = Asset.objects.filter(id=image_ids[0]).values_list("name", flat=True).first() or fallback
|
||
subject = name.rsplit(".", 1)[0] if name else fallback
|
||
if len(refs) > 1:
|
||
subject = f"{subject}（{len(refs)}张参考图）"
|
||
return subject, refs, "temporary"
|