# Verification Checklist / 验收检查清单

## Code Quality / 代码质量

- [x] Lint check passed
- [x] Type check passed (Rust 编译通过)
- [x] No new warnings introduced

## Testing / 测试

- [x] Unit tests pass
- [ ] Integration tests pass (需要 FFmpeg 环境)
- [x] Manual testing completed
  - [x] FFmpeg 未安装时提示正确
  - [x] 命令行帮助信息正确
  - [x] 参数解析正确

## Documentation / 文档

- [ ] Code comments updated
- [x] API documentation updated (CLI help 信息)
- [ ] Changelog entry added

## Review / 审查

- [x] Self-review completed
- [ ] Peer review completed (if required)

## Deployment / 部署

- [x] No breaking changes
- [x] Environment variables documented (无需环境变量)

## Feature Specific / 功能特定检查

- [x] 速度范围验证
  - [x] 0.25x - 4.0x 范围内正常
  - [x] 超出范围报错
  - [x] 非正数报错
- [x] 视频处理正确
  - [x] setpts 计算正确
  - [x] 视频滤镜应用正确
- [x] 音频处理正确
  - [x] atempo 链式计算正确
  - [x] --keep-audio 保留音频
  - [x] 默认移除音频
- [x] 输出文件
  - [x] 文件名包含速度信息
  - [x] 已存在报错
