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xiaoxia-saas/apps/api/app/schemas/ai_avatar_render.py
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Python

"""AI数字人渲染合成管线 API Schema — #1798."""
from __future__ import annotations
from datetime import datetime
from typing import Any, Optional
from pydantic import BaseModel, Field, field_validator
class BRollSegment(BaseModel):
"""B-roll 片段配置."""
script_segment_index: int = Field(..., ge=0, description="对应文案片段索引")
asset_url: str = Field(..., description="B-roll 素材 URL")
mode: str = Field(..., description="插入模式: fullscreen 或 pip")
start_time: float = Field(..., ge=0.0, description="在对口型视频中的起始时间(秒)")
end_time: float = Field(..., ge=0.0, description="在对口型视频中的结束时间(秒)")
pip_position: Optional[str] = Field("bottom_right", description="pip 模式位置")
pip_scale: Optional[float] = Field(0.3, ge=0.05, le=1.0, description="pip 模式缩放比例")
@field_validator("mode")
@classmethod
def validate_mode(cls, v: str) -> str:
v = v.strip().lower()
if v not in ("fullscreen", "pip"):
raise ValueError("mode 必须为 fullscreen 或 pip")
return v
@field_validator("asset_url")
@classmethod
def validate_asset_url(cls, v: str) -> str:
v = v.strip()
if not v:
raise ValueError("asset_url 不能为空")
if not v.startswith(("http://", "https://")):
raise ValueError("asset_url 必须是 HTTP/HTTPS URL")
return v
@field_validator("end_time")
@classmethod
def validate_end_time(cls, v: float, info: Any) -> float:
start = info.data.get("start_time", 0.0)
if v <= start:
raise ValueError("end_time 必须大于 start_time")
return v
class CreateAiAvatarRenderRequest(BaseModel):
"""创建渲染任务请求."""
lipsync_job_id: str = Field(..., description="对口型任务 ID")
script_id: str = Field("", description="文案 ID(选自文案库时传;手动输入文案直生场景可留空)")
b_roll_segments: list[BRollSegment] = Field(default_factory=list, description="B-roll 片段列表")
title_config: dict[str, Any] = Field(
default_factory=dict,
description="标题配置(可含 title_image_dataurl:前端 Canvas 渲染的标题 PNG dataURL;含 line_overrides 逐行样式)",
)
cover_config: dict[str, Any] = Field(default_factory=dict, description="封面配置")
cover_title_config: dict[str, Any] = Field(
default_factory=dict,
description="封面独立标题配置(#2001),结构同 title_config;为空时封面不叠标题",
)
project_id: str = Field("", description="项目 ID")
@field_validator("lipsync_job_id")
@classmethod
def validate_lipsync_job_id(cls, v: str) -> str:
v = v.strip()
if not v:
raise ValueError("lipsync_job_id 不能为空")
return v
@field_validator("script_id")
@classmethod
def validate_script_id(cls, v: str) -> str:
return (v or "").strip()
class AiAvatarRenderJobResponse(BaseModel):
"""渲染任务响应."""
id: str
user_id: str
project_id: str
lipsync_job_id: str
script_id: str = ""
b_roll_segments: list[dict[str, Any]]
title_config: dict[str, Any]
cover_config: dict[str, Any]
cover_title_config: dict[str, Any] = Field(default_factory=dict, description="封面独立标题配置")
status: str
progress: int
output_video_url: str
output_cover_url: str
output_duration: float
error_message: str
submitted_at: Optional[datetime] = None
started_at: Optional[datetime] = None
completed_at: Optional[datetime] = None
created_at: datetime
updated_at: datetime
class Config:
from_attributes = True
class AiAvatarRenderProgressResponse(BaseModel):
"""渲染进度响应."""
status: str
progress: int
output_video_url: str
output_cover_url: str
output_duration: float
error_message: str
class SmartCoverResponse(BaseModel):
"""智能封面响应(封面从最终成片抽帧,不再叠加标题)."""
cover_url: str = Field("", description="封面图公网 URL(OSS,非临时);失败为空")
status: str = Field("completed", description="completed / fallback_failed")
message: str = Field("", description="失败原因(如有)")
class FinalizeRenderResponse(BaseModel):
"""封面选好后点「完成」,正式入库成片库的响应."""
video_id: str = Field(..., description="成片库视频ID")
cover_url: str = Field("", description="封面URL")
status: str = Field("success", description="success/already_finalized")