feat: 调度器+并发管线+GPU优化+日志分级+前端修复
- scheduler: ffmpeg 异步线程 + GPU 串行调度 + 模型复用(2N→2 次加载) - pipeline: 阶段拆分(extract/asr/translate),中间数据存 Task 字段 - translate_service: 长度排序批处理,padding 浪费减少 91% - model_manager: ASR/翻译不共驻,BatchedInferencePipeline 批量解码 - 日志分级: INFO=任务流转里程碑,DEBUG=进度详情;默认 INFO - 前端: 日志最新在上+滚动感知+退避轮询;24h 时间;上传中状态显示 - /health: 返回完整 Whisper/NLLB 配置 - upload_service: 单事务 complete + 扩展名白名单 - task_router: 合并 UploadSession 虚拟任务到列表 - Dockerfile: CPU/GPU 独立构建链,deps 缓存稳定 - prefetch_models: 安装时预下载模型权重
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@@ -14,6 +14,17 @@ def _now() -> datetime:
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return datetime.now(timezone.utc)
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# 任务状态枚举(单一真源,供 scheduler / cache_cleaner / views 引用)
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STATUS_UPLOADING = "uploading" # 虚拟状态:分片上传中(不在 Task 表,由 UploadSession 映射)
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STATUS_QUEUED = "queued"
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STATUS_EXTRACTING = "extracting"
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STATUS_TRANSCRIBING = "transcribing"
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STATUS_SEGMENTING = "segmenting"
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STATUS_TRANSLATING = "translating"
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STATUS_DONE = "done"
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STATUS_FAILED = "failed"
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class Task(Base):
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__tablename__ = "task"
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@@ -23,7 +34,7 @@ class Task(Base):
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# 视频在 upload_dir 下的相对路径(提取音频前后可能被删)
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source_path: Mapped[str] = mapped_column(String(1024), nullable=False)
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# 状态机:queued → extracting → transcribing → segmenting → translating → done | failed
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status: Mapped[str] = mapped_column(String(32), nullable=False, default="queued")
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status: Mapped[str] = mapped_column(String(32), nullable=False, default=STATUS_QUEUED, index=True)
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# 0-100 进度
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progress: Mapped[float] = mapped_column(Float, nullable=False, default=0.0)
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# 失败原因
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@@ -33,7 +44,13 @@ class Task(Base):
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en_srt_path: Mapped[str | None] = mapped_column(String(1024), nullable=True)
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zh_srt_path: Mapped[str | None] = mapped_column(String(1024), nullable=True)
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created_at: Mapped[datetime] = mapped_column(DateTime, default=_now)
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# ---- 流水线阶段间传递的中间数据(scheduler 调度用)----
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# ffmpeg 提取出的 wav 绝对路径(extract 阶段写,asr 阶段读)
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wav_path: Mapped[str | None] = mapped_column(String(1024), nullable=True)
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# ASR + 断句结果(asr 阶段写 JSON,translate 阶段读)。JSON 序列化的 list[Subtitle]
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segments_json: Mapped[str | None] = mapped_column(Text, nullable=True)
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created_at: Mapped[datetime] = mapped_column(DateTime, default=_now, index=True)
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updated_at: Mapped[datetime] = mapped_column(DateTime, default=_now, onupdate=_now)
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def __repr__(self) -> str:
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