Ruifeng Zhang — Tide & Forest Studio
[email protected]
ReplayMark helps you review sports videos with adjustable speed, frame navigation, markers, notes, A–B loops, clip export and frame saving. It requires iOS/iPadOS 17 or later. The current app interface is in Simplified Chinese.
Record using Camera or another tool, then select a video with 从相册选择视频. Allow access to that video when Photos permission is requested. Local originals can be reviewed offline; an iCloud-only original needs to download first.
Add a marker at the current time; title, category and note are optional. Open the marker list to jump to a moment or edit its text. For a loop, set A, move later and set B, then enable looping. Clip export uses an independent output speed; 保存到相册 is at top right. The frame-saving button saves the complete frame, without player controls or display zoom. Both create new Photos items and leave the source unchanged.
Video unavailable: check that the original still exists and that Photos access includes it. Reselect it if needed. For iCloud-only content, connect to a network and allow the download.
Frame stepping or speed unavailable: AVFoundation capabilities vary by media and device. The app reports unsupported operations; it does not approximate frames with a fixed frame duration.
Export fails: check Photos add permission and available device storage, select B after A, and retry. Closing the panel or backgrounding cancels unfinished export work; a submitted Photos save finishes before another save is allowed.
Deleting a library entry: removes its app reference and associated markers/notes; the Photos original remains. There is no app-managed synchronization or backup/restore feature.
Email your device model, OS version, app version, reproduction steps and error text. If known, include the video's format, duration and frame rate. Share screenshots only if you are comfortable sharing their content; a private video is not required.
ReplayMark 支持变速回看、逐帧导航、标记笔记、A–B 循环、片段导出和保存视频帧。需要 iOS/iPadOS 17 或更新版本，当前界面为简体中文。
先用系统相机或其他工具录像，再点击“从相册选择视频”，按需允许访问选中的视频。本地原片可离线回看；仅存于 iCloud 的视频需先联网下载。
在当前时间添加标记，标题、分类、备注均可留空；标记列表支持跳转及编辑。设置 A 后移动到更晚时间设置 B，开启循环。片段导出面板独立选择输出速度，右上角“保存到相册”执行保存。当前帧按钮保存完整画面，不包含播放器控件或显示缩放。两者仅新增相册内容，不改原片。
视频打不开：确认原片仍在相册，照片权限包含该视频；必要时重新选择。iCloud 原片需网络下载。
逐帧或速度不可用：不同素材与设备的 AVFoundation 能力不同，App 会提示不支持的操作，不使用固定帧时长模拟。
导出失败：检查相册添加权限、设备剩余空间及 B 是否晚于 A，再重试。关闭面板或进入后台取消未完成导出；已提交给相册的保存事务结束后才允许再次保存。
删除视频库条目：只删除 App 内引用及关联标记笔记，保留相册原片。当前不提供 App 云同步或备份恢复功能。
请邮件提供设备型号、系统和 App 版本、复现步骤及错误提示；知道时附视频格式、时长、帧率。只发送你愿意分享的截图，不必发送私人视频。