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fix: MP4 fullbox偏移修正+标题全角/半角斜杠换行 #1440

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xiaoxia wants to merge 1 commits from fix/fullbox-offset-and-title-split into develop
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xiaoxia commented 2026-08-19 14:41:21 +08:00
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修复内容

Bug 1：MP4 fullbox 偏移计算错误（黑屏）

文件：useCanvasPlayer.ts - findCodecConfig 函数

  • 容器 box 内容偏移从 offset + 8 改为 offset + 12
  • fullbox 头部为 12 字节：size(4) + type(4) + version(1) + flags(3)

Bug 2：标题 "/" 换行同时支持全角和半角

文件：useCanvasPlayer.ts - drawTitle 函数

  • split("/") → split(/[/／]/) 同时匹配半角 / 和全角 ／

验证标准

  1. HEVC/H.265 素材视频正常播放（不再黑屏）
  2. 标题中 / 或 ／ 处正确换行
  3. npm run build 无 TS 报错
## 修复内容 ### Bug 1：MP4 fullbox 偏移计算错误（黑屏） **文件**：`useCanvasPlayer.ts` - `findCodecConfig` 函数 - 容器 box 内容偏移从 `offset + 8` 改为 `offset + 12` - fullbox 头部为 12 字节：size(4) + type(4) + version(1) + flags(3) ### Bug 2：标题 "/" 换行同时支持全角和半角 **文件**：`useCanvasPlayer.ts` - `drawTitle` 函数 - `split("/")` → `split(/[/／]/)` 同时匹配半角 `/` 和全角 `／` ## 验证标准 1. HEVC/H.265 素材视频正常播放（不再黑屏） 2. 标题中 `/` 或 `／` 处正确换行 3. npm run build 无 TS 报错
xiaoxia added 1 commit 2026-08-19 14:41:21 +08:00
fix: MP4 fullbox偏移修正+标题全角/半角斜杠换行
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2f58674679 
- findCodecConfig: 容器box内容偏移从+8改为+12（fullbox 12字节头）
- drawTitle: split支持半角/和全角／两种换行符
auto-approve-bot commented 2026-08-19 14:43:13 +08:00
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【阻塞级判定】

  • 是否存在阻塞级问题：是
  • 阻塞级问题数量：1 个

📊 审查概览

  • 整体评价：需修改
  • 建议级问题数量：0 个

🔴 阻塞级问题（必须修复）

  1. [apps/web/src/pages/generate/hooks/useCanvasPlayer.ts: 32] MP4 容器 Box 解析偏移错误
    • 问题类型：逻辑bug
    • 问题描述：代码将 trak、mdia、minf 和 stbl 这四个容器 Box 当作 FullBox 处理（头部偏移量设为 12 字节）。根据 ISO Base Media File Format (ISO BMFF) 标准，这四个 Box 均为标准 Box（Header 为 8 字节），而非 FullBox（Header 为 12 字节）。
    • 修改建议：将 const contentStart = offset + 12 改回 const contentStart = offset + 8。FullBox 通常是指 stsd、stts、stsc 等具体描述 Box，而不是这些容器 Box。当前的修改会导致解析时多跳过 4 字节，破坏后续数据的对齐，导致编解码器配置查找失败或解析错误。

💡 改进建议（不阻塞合并）

无

✅ 良好实践

  1. 文本分割增强：在 useCanvasPlayer 中使用正则表达式 /[/／]/ 同时支持半角 / 和全角 ／ 斜杠进行换行，提升了国际化和用户体验。

🤖 由 AI 代码审查机器人自动生成 | 2026-08-19 06:43:13 | 模型:

### 【阻塞级判定】 - 是否存在阻塞级问题：是 - 阻塞级问题数量：1 个 ### 📊 审查概览 - 整体评价：需修改 - 建议级问题数量：0 个 ### 🔴 阻塞级问题（必须修复） 1. **[apps/web/src/pages/generate/hooks/useCanvasPlayer.ts: 32] MP4 容器 Box 解析偏移错误** - 问题类型：逻辑bug - 问题描述：代码将 `trak`、`mdia`、`minf` 和 `stbl` 这四个容器 Box 当作 FullBox 处理（头部偏移量设为 12 字节）。根据 ISO Base Media File Format (ISO BMFF) 标准，这四个 Box 均为标准 Box（Header 为 8 字节），而非 FullBox（Header 为 12 字节）。 - 修改建议：将 `const contentStart = offset + 12` 改回 `const contentStart = offset + 8`。FullBox 通常是指 `stsd`、`stts`、`stsc` 等具体描述 Box，而不是这些容器 Box。当前的修改会导致解析时多跳过 4 字节，破坏后续数据的对齐，导致编解码器配置查找失败或解析错误。 ### 💡 改进建议（不阻塞合并） 无 ### ✅ 良好实践 1. **文本分割增强**：在 `useCanvasPlayer` 中使用正则表达式 `/[/／]/` 同时支持半角 `/` 和全角 `／` 斜杠进行换行，提升了国际化和用户体验。 --- <sub>🤖 由 AI 代码审查机器人自动生成 | 2026-08-19 06:43:13 | 模型: </sub> <!-- AI_CODE_REVIEW_AUTO_COMMENT -->
gitea-actions bot commented 2026-08-19 14:43:16 +08:00
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🚀 预览环境已部署

项目 详情
PR号 #1440
预览链接 https://pr-1440.preview.xiaoxiajianji.com
API环境 staging

💡 预览环境使用 staging API 数据，请勿在预览环境中操作重要数据。

🔄 每次提交新代码后预览环境会自动更新。

🗑️ PR 关闭或合并后，预览环境会自动清理。

🚀 **预览环境已部署** | 项目 | 详情 | |------|------| | PR号 | #1440 | | 预览链接 | [https://pr-1440.preview.xiaoxiajianji.com](https://pr-1440.preview.xiaoxiajianji.com) | | API环境 | staging | > 💡 预览环境使用 staging API 数据，请勿在预览环境中操作重要数据。 > > 🔄 每次提交新代码后预览环境会自动更新。 > > 🗑️ PR 关闭或合并后，预览环境会自动清理。
auto-approve-bot approved these changes 2026-08-19 14:44:35 +08:00
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CI全绿，自动审批通过。

CI全绿，自动审批通过。
auto-approve-bot approved these changes 2026-08-19 14:44:35 +08:00
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CI全绿，自动审批通过。

CI全绿，自动审批通过。
xiaoxia closed this pull request 2026-08-19 20:48:12 +08:00
gitea-actions bot commented 2026-08-19 20:50:14 +08:00
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🗑️ 预览环境已清理

PR #1440 已关闭或合并，对应的预览环境已被清理。

如有需要，可以重新打开 PR 来重新生成预览环境。

🗑️ **预览环境已清理** PR #1440 已关闭或合并，对应的预览环境已被清理。 > 如有需要，可以重新打开 PR 来重新生成预览环境。
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Reference: xiaoxia/xiaoxia-saas#1440
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