添加seedance2.5

core/backend/apps/ai/video_replace.py

@@ -23,15 +23,16 @@ from apps.products.models import Product
 from .free_video import (
     FREE_VIDEO_MODELS,
     HIGH_RES_MODEL,
+    REPLACE_MODEL,
     IN_FLIGHT_STATUSES,
     RATIOS,
     RESOLUTIONS,
     _reap_stale_free_video_tasks,
+    model_duration_range,
     serialize_free_video_task,
     start_pending_free_video,
     submit_free_video,
 )
-from .media_probe import REF_DURATION_MAX
 from .models import AITask, ModelConfig
 
 logger = logging.getLogger(__name__)
@@ -43,9 +44,10 @@ LEGACY_PROMPT_PREFIX = "[视频复刻]"
 # 商品三视图在商品库是 standalone Asset(metadata.view=three_view + product_id),
 # 和项目内的 BaseAssetGroup 是两套存储,这里直接取商品库那份。
 TRIVIEW_LABEL = "目标商品三视图"
-# 商品复刻的参考视频不进火山、只喂提炼模型,所以不受火山 15 秒参考视频限制。
-# 半秒容差同 media_probe 的老规矩(60 秒成片常被探成 60.02)。角色复刻仍是 15 秒。
-PRODUCT_REF_DURATION_MAX = 60.5
+# 复刻统一走 Seedance 2.5,单次能出 30 秒,所以参考视频也按 30 秒收口:
+# 商品模式的参考视频只喂提炼模型,角色模式直传火山,两边都不需要超过成片上限的素材。
+# 半秒容差同 media_probe 的老规矩(30 秒成片常被探成 30.02)。
+REPLACE_REF_DURATION_MAX = 30.5
 REVIEW_UNAVAILABLE = "素材审核服务暂不可用，请稍后重试"
 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"
 REVIEW_SUBMIT_FAILED = "素材提交审核失败，请稍后重试"
@@ -257,12 +259,8 @@ def submit_video_replace(*, team, user, params: dict):
 
     video = _team_asset(team, params.get("video_asset_id"), kind=Asset.Type.VIDEO, label="参考视频")
     video_seconds = _asset_duration_seconds(video)
-    if replace_mode == "product":
-        if video_seconds > PRODUCT_REF_DURATION_MAX:
-            raise ValueError("参考视频不能超过 60 秒，请剪短后重试")
-    elif video_seconds > REF_DURATION_MAX:
-        # 角色复刻把参考视频直传火山,15 秒是火山那边的硬限制,不能跟着放宽。
-        raise ValueError("参考视频不能超过 15 秒，请剪短后重试")
+    if video_seconds > REPLACE_REF_DURATION_MAX:
+        raise ValueError("参考视频不能超过 30 秒，请剪短后重试")
 
     if has_product:
         subject_name, image_refs, subject_source = _product_library_refs(team, product_id)
@@ -282,7 +280,8 @@ def submit_video_replace(*, team, user, params: dict):
     }
     base_params = {
         "mode": "universal",
-        "model": str(params.get("model") or HIGH_RES_MODEL),
+        # 商品和角色都固定走 Seedance 2.5:只有它支持 30 秒单次出片,不接受前端指定别的档
+        "model": REPLACE_MODEL,
         "aspect_ratio": str(params.get("aspect_ratio") or "9:16"),
         "resolution": str(params.get("resolution") or "720p"),
         "duration": duration,
@@ -494,7 +493,7 @@ def _create_reviewing_task(*, team, user, params: dict, digest_pending: bool = F
 
     两种情况共用:①角色复刻的素材还在审核 ②商品复刻的参考视频还没拆解。
     """
-    model_name = str(params.get("model") or HIGH_RES_MODEL)
+    model_name = str(params.get("model") or REPLACE_MODEL)
     aspect_ratio = str(params.get("aspect_ratio") or "9:16")
     resolution = str(params.get("resolution") or "720p")
     try:
@@ -507,8 +506,9 @@ def _create_reviewing_task(*, team, user, params: dict, digest_pending: bool = F
         raise ValueError("画面比例无效")
     if resolution not in RESOLUTIONS:
         raise ValueError("分辨率无效")
-    if not 4 <= duration <= 15:
-        raise ValueError("视频时长需在 4-15 秒之间")
+    low, high = replace_duration_range()
+    if not low <= duration <= high:
+        raise ValueError(f"视频时长需在 {low}-{high} 秒之间")
 
     model_config = (
         ModelConfig.objects.select_related("provider")
@@ -754,16 +754,27 @@ def _asset_duration_seconds(asset: Asset) -> float:
     return primary.duration_ms / 1000.0
 
 
+def replace_duration_range() -> tuple[int, int]:
+    """复刻模型(Seedance 2.5)支持的出片时长区间。模型没配好时回落 4–15,不至于炸。"""
+    model = (
+        ModelConfig.objects.filter(
+            name=REPLACE_MODEL, capability=ModelConfig.Capability.VIDEO, status=ModelConfig.Status.ACTIVE
+        ).first()
+    )
+    return model_duration_range(model)
+
+
 def _output_duration(requested, video_seconds: float) -> int:
+    low, high = replace_duration_range()
     try:
         value = int(requested) if requested not in (None, "") else 0
     except (TypeError, ValueError):
         value = 0
     if value:
-        return min(15, max(4, value))
+        return min(high, max(low, value))
     if video_seconds:
-        return min(15, max(4, int(round(video_seconds))))
-    return 15
+        return min(high, max(low, int(round(video_seconds))))
+    return high
 
 
 def _owned_ref(asset: Asset, *, kind: str, role: str, label: str) -> dict: