270 lines
6.8 KiB
Markdown
270 lines
6.8 KiB
Markdown
# 剪映导出算法流程图
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## 总体流程
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```mermaid
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flowchart TD
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Start([开始导出]) --> Input[输入参数验证]
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Input --> GetData[获取匹配结果详情]
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GetData --> CheckData{数据是否有效?}
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CheckData -->|否| Error1[返回错误]
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CheckData -->|是| InitDraft[初始化草稿结构]
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InitDraft --> CalcDuration[计算总时长]
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CalcDuration --> GenMaterials[生成素材列表]
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GenMaterials --> GenTracks[生成轨道结构]
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GenTracks --> Serialize[序列化JSON]
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Serialize --> WriteFile[写入文件]
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WriteFile --> Success[返回文件路径]
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Error1 --> End([结束])
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Success --> End
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```
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## 素材生成详细流程
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```mermaid
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flowchart TD
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StartMat[开始生成素材] --> InitMap[初始化ID映射表]
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InitMap --> LoopStart{遍历匹配片段}
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LoopStart -->|有片段| QuerySegment[查询MaterialSegment]
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QuerySegment --> CheckSegment{片段是否存在?}
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CheckSegment -->|否| LogError[记录错误并跳过]
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CheckSegment -->|是| NormalizePath[标准化文件路径]
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NormalizePath --> GenUUID[生成随机素材ID]
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GenUUID --> MapID[建立ID映射关系]
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MapID --> CreateVideo[创建JianYingVideo对象]
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CreateVideo --> AddToList[添加到素材列表]
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AddToList --> LoopStart
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LogError --> LoopStart
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LoopStart -->|无片段| ReturnMaterials[返回素材列表和映射表]
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```
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## 轨道生成详细流程
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```mermaid
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flowchart TD
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StartTrack[开始生成轨道] --> CreateTrack[创建主视频轨道]
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CreateTrack --> InitSegments[初始化片段列表]
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InitSegments --> LoopSegments{遍历匹配片段}
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LoopSegments -->|有片段| LookupID[查找素材ID映射]
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LookupID --> CheckMapping{映射是否存在?}
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CheckMapping -->|否| SkipSegment[跳过此片段]
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CheckMapping -->|是| CreateSegment[创建JianYingSegment]
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CreateSegment --> SetTimeRange[设置时间轴映射]
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SetTimeRange --> SetProperties[设置播放属性]
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SetProperties --> SetEffects[设置视觉效果]
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SetEffects --> AddSegment[添加到片段列表]
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AddSegment --> LoopSegments
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SkipSegment --> LoopSegments
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LoopSegments -->|无片段| AssignTrack[分配轨道结构]
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AssignTrack --> ReturnTracks[返回轨道列表]
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```
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## 路径处理流程
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```mermaid
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flowchart TD
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InputPath[输入文件路径] --> CheckUNC{是否包含\\\\?\\前缀?}
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CheckUNC -->|是| RemovePrefix[移除UNC前缀]
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CheckUNC -->|否| KeepOriginal[保持原路径]
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RemovePrefix --> ValidatePath[验证路径格式]
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KeepOriginal --> ValidatePath
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ValidatePath --> ReturnPath[返回标准化路径]
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```
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## 时间轴映射机制
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```mermaid
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flowchart LR
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subgraph "模板时间轴"
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TS1[片段1: 0-5s]
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TS2[片段2: 5-10s]
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TS3[片段3: 10-15s]
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end
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subgraph "素材文件"
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MS1[素材A: 0-5s]
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MS2[素材B: 0-5s]
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MS3[素材C: 0-5s]
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end
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subgraph "剪映时间轴"
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JS1[片段1: 0-5s]
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JS2[片段2: 5-10s]
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JS3[片段3: 10-15s]
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end
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TS1 --> MS1
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TS2 --> MS2
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TS3 --> MS3
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MS1 --> JS1
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MS2 --> JS2
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MS3 --> JS3
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```
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## 数据转换映射
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```mermaid
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flowchart LR
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subgraph "输入数据"
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TMR[TemplateMatchingResult]
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MSR[MatchingSegmentResult[]]
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MS[MaterialSegment]
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end
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subgraph "中间处理"
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IDMap[ID映射表]
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PathNorm[路径标准化]
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TimeCalc[时长计算]
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end
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subgraph "输出数据"
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JDC[JianYingDraftContent]
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JV[JianYingVideo[]]
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JT[JianYingTrack[]]
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JSeg[JianYingSegment[]]
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end
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TMR --> TimeCalc
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MSR --> IDMap
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MS --> PathNorm
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IDMap --> JV
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PathNorm --> JV
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TimeCalc --> JDC
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JV --> JDC
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JT --> JDC
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JSeg --> JT
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```
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## 错误处理流程
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```mermaid
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flowchart TD
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Operation[执行操作] --> CheckError{是否发生错误?}
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CheckError -->|否| Continue[继续执行]
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CheckError -->|是| ErrorType{错误类型}
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ErrorType -->|数据不存在| LogWarning[记录警告]
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ErrorType -->|系统错误| LogError[记录错误]
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ErrorType -->|致命错误| Abort[中止执行]
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LogWarning --> Skip[跳过当前项]
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LogError --> Retry{是否重试?}
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Retry -->|是| Operation
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Retry -->|否| Skip
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Skip --> Continue
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Abort --> ReturnError[返回错误]
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Continue --> Success[操作成功]
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```
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## 性能优化策略
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```mermaid
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flowchart TD
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subgraph "数据库优化"
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BatchQuery[批量查询]
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IndexOpt[索引优化]
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ConnPool[连接池]
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end
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subgraph "内存优化"
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PreAlloc[预分配容量]
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ObjectPool[对象池]
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LazyLoad[延迟加载]
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end
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subgraph "算法优化"
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HashMap[HashMap查找]
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PathCache[路径缓存]
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ParallelProc[并行处理]
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end
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subgraph "I/O优化"
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AsyncIO[异步I/O]
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BufferWrite[缓冲写入]
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Compression[压缩输出]
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end
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```
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## 质量保证流程
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```mermaid
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flowchart TD
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StartQA[开始质量检查] --> ValidateInput[验证输入数据]
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ValidateInput --> CheckMaterials[检查素材完整性]
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CheckMaterials --> ValidateTime[验证时间轴]
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ValidateTime --> CheckPaths[检查文件路径]
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CheckPaths --> ValidateJSON[验证JSON格式]
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ValidateJSON --> TestImport[测试剪映导入]
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TestImport --> QAPass{质量检查通过?}
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QAPass -->|是| DeployReady[准备部署]
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QAPass -->|否| FixIssues[修复问题]
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FixIssues --> StartQA
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```
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## 监控和日志
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```mermaid
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flowchart LR
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subgraph "性能监控"
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ExecTime[执行时间]
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MemUsage[内存使用]
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DBQuery[数据库查询次数]
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end
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subgraph "业务监控"
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SuccessRate[成功率]
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ErrorCount[错误计数]
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FileSize[输出文件大小]
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end
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subgraph "日志记录"
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InfoLog[信息日志]
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WarnLog[警告日志]
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ErrorLog[错误日志]
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end
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ExecTime --> InfoLog
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MemUsage --> InfoLog
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DBQuery --> InfoLog
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SuccessRate --> InfoLog
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ErrorCount --> WarnLog
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FileSize --> InfoLog
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```
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## 扩展性设计
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```mermaid
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flowchart TD
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CurrentImpl[当前实现] --> Extensions[扩展点]
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Extensions --> MultiTrack[多轨道支持]
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Extensions --> Effects[特效支持]
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Extensions --> Templates[模板参数化]
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Extensions --> Formats[多格式导出]
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MultiTrack --> AudioTrack[音频轨道]
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MultiTrack --> SubtitleTrack[字幕轨道]
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Effects --> Transitions[转场效果]
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Effects --> Filters[滤镜效果]
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Templates --> CustomCanvas[自定义画布]
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Templates --> FrameRate[帧率设置]
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Formats --> FinalCut[Final Cut Pro]
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Formats --> Premiere[Adobe Premiere]
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```
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