添加seedance2.5

2026-08-28 16:03:23 +08:00
parent c0a0b9603b
commit a618f02315
16 changed files with 416 additions and 80 deletions
@@ -0,0 +1,100 @@
+"""给 Seedance-2.5 补齐能力与定价元数据。
+
+这条模型已经在生产库里(后台加的),但 metadata 装的是 Seedance-2.0 的能力
+(durations 只到 15),而且缺 pricing —— 缺 pricing 会让 get_token_price 直接抛
+ValueError,每次提交都失败;durations 停在 15 则拿不到「支持 30 秒」这个信息。
+视频复刻(商品 / 角色)固定走这一档,两样都必须是对的。
+
+覆盖策略分两类:
+- 能力事实(modes / durations / resolutions / capabilities / routing / audio)**强制覆盖** ——
+  它们描述模型本身能做什么,不是运营偏好。留着 2.0 抄过来的 15 秒会让 30 秒静默失效。
+- 运营可调项(pricing / watermark / source)只在缺失时填 —— 后台改过的价目不能被迁移冲掉。
+
+⚠️ pricing 暂用 Seedance-2.0 标准档数字占位,火山 2.5 官方价目待核对(见 catalog.py 注释)。
+幂等:可重复 apply。
+"""
+from django.db import migrations
+
+NAME = "doubao-seedance-2-5-260628"
+DURATIONS = list(range(4, 31))
+RESOLUTIONS = ["480p", "720p", "1080p", "4k"]
+MODES = ["text", "startFrameOptional", "imageReference:9", "videoReference:3", "audioReference:3"]
+
+# 与 apps/ai/catalog.py 的 Seedance-2.5 条目逐键对齐(那边由 _enrich_catalog_routing 自动生成)
+CAPABILITY_FACTS = {
+    "audio": "optional",
+    "modes": MODES,
+    "durations": DURATIONS,
+    "resolutions": RESOLUTIONS,
+    "routing": {"fallback_on_failure": False, "fallback_candidate": True},
+    "capabilities": {
+        "operations": ["video_generate"],
+        "features": [
+            "text_to_video", "start_frame", "image_reference",
+            "video_reference", "audio_reference", "generate_audio",
+        ],
+        "max_reference_images": 9,
+        "max_reference_videos": 3,
+        "max_reference_audios": 3,
+        "aspect_ratios": ["21:9", "16:9", "4:3", "1:1", "3:4", "9:16"],
+        "resolutions": RESOLUTIONS,
+        "durations": DURATIONS,
+    },
+}
+
+OPERATOR_TUNABLE = {
+    "watermark": False,
+    "source": "volcengine ark · Seedance 2.5",
+    "pricing": {
+        "unit": "cny_per_million_tokens",
+        "default": {"no_ref_video": 46, "with_ref_video": 28},
+        "1080p": {"no_ref_video": 51, "with_ref_video": 31},
+        "4k": {"no_ref_video": 26, "with_ref_video": 16},
+    },
+}
+
+
+def seed(apps, schema_editor):
+    ModelProvider = apps.get_model("ai", "ModelProvider")
+    ModelConfig = apps.get_model("ai", "ModelConfig")
+
+    provider, _ = ModelProvider.objects.get_or_create(
+        name="volcengine",
+        defaults={
+            "display_name": "火山引擎(豆包)",
+            "status": "active",
+            "base_url": "https://ark.cn-beijing.volces.com/api/v3",
+        },
+    )
+    # 生产库里这行已存在,只修元数据;其它环境(测试 / 全新部署)则建出来。
+    # created_at 晚于现有视频模型 → get_default_model(VIDEO) 仍取原默认,主流程零影响。
+    ModelConfig.objects.get_or_create(
+        provider=provider,
+        name=NAME,
+        capability="video",
+        defaults={
+            "display_name": "Seedance-2.5",
+            "endpoint": "contents/generations/tasks",
+            "status": "active",
+            "is_default": False,
+            "metadata": {**OPERATOR_TUNABLE, **CAPABILITY_FACTS},
+        },
+    )
+    for config in ModelConfig.objects.filter(name=NAME, capability="video"):
+        metadata = dict(config.metadata or {})
+        for key, value in OPERATOR_TUNABLE.items():
+            metadata.setdefault(key, value)
+        metadata.update(CAPABILITY_FACTS)  # 能力事实强制纠正
+        config.metadata = metadata
+        if not config.endpoint:
+            config.endpoint = "contents/generations/tasks"
+        config.save(update_fields=["metadata", "endpoint", "updated_at"])
+
+
+def noop(apps, schema_editor):
+    """只补元数据,回滚不删 —— 删了会让在途任务计价失败。"""
+
+
+class Migration(migrations.Migration):
+    dependencies = [("ai", "0032_drop_storyboard_prompt_template")]
+    operations = [migrations.RunPython(seed, noop)]