osu-beatmap-preview-py
osu-beatmap-preview 的
Python 原生扩展。渲染器通过 PyO3 直接运行在 Python 进程内,不需要下载、配置或启动额外的
可执行文件。
当前为早期开发版本。0.1.10 使用上游 v1.4.2 的固定提交
121f44a。 core、CLI 和构建资源随仓库分发,确保各平台 wheel 使用相同的渲染行为。 本次更新包含太鼓判定圆、完整空心转盘及击打数统计,Catch 自动接盘与 FL 跟随,以及故事板显示修复。
安装
pip install osu-beatmap-preview-py
PyPI 发布后,pip 会为受支持的平台安装预编译 wheel,不要求用户安装 Rust。没有预编译 wheel 的平台从源码安装时仍需要 Rust 和 C++ 工具链。
使用
from osu_beatmap_preview import generate_preview_async
result = await generate_preview_async(
4498112,
format="gif",
mods="hd+hr",
times="preview+60",
duration_time=8,
fps=30,
scale=1.5,
)
print(result["preview-img"])
generate_preview() 是同步接口,适合脚本;NoneBot、FastAPI 等异步应用应使用
generate_preview_async(),避免阻塞事件循环。
convert 仅用于将 osu!standard 谱面转换成 taiko、ctb 或 mania。原生非 standard
谱面不要传入 convert。
times 使用 + 分隔多个秒数,也支持 preview;duration_time 控制 GIF 片段或 MP4
区间时长。config 可传配置文件路径或内联 JSON/YAML,scale 用于临时覆盖输出倍率。
CTB GIF 模组
原生 CTB 和 standard 转 CTB 的 GIF 支持 hd、ez、hr、dt、ht。
HD 会让水果、水滴及香蕉在到达判定线前渐隐;支持 hd+ez、hd+hr、hd+dt、hd+ht。
ez+hr 和 dt+ht 是互斥组合。PNG 静态图支持 EZ、HR,不支持 HD、DT、HT。
Hyperdash(红果)的外圈默认使用红色 #FF0000,可通过 skin.HYPER_DASH 配置 RGB 颜色;
水果本体继续使用谱面 Combo 颜色,HD 渐隐同时作用于本体、白边和红圈。
result = await generate_preview_async(
3994408,
format="gif",
mods="hd+dt",
times="preview",
duration_time=3,
fps=20,
)
四种模式的 GIF / MP4 模组
| 模式 | 支持的模组 |
|---|---|
| Standard | EZ、HR、HD、FL、AT、TC、DA、DT、HT、NC、DC |
| Taiko | EZ、HR、HD、FL、SW、CS、DT、HT、NC、DC |
| Catch | EZ、HR、HD、FL、AT、DT、HT、NC、DC |
| Mania | HD、FL、1K–10K、DS、IN、HO、CS、DT、HT、NC、DC |
组合中的每个模组都必须受当前模式支持;Mania 的 HD+FL 互斥,其余三种模式可组合使用。
HD+TC、IN+HO、EZ+HR、DT+HT 互斥;mania 的键数模组和 DS 只影响 standard 转谱。
GIF 和 MP4 使用相同的模组支持规则,GIF 在 15、30、60 fps 下也会保持请求的播放时长。
DT/HT 的 MP4 音乐保调变速,可用 dt1.25、ht0.9 指定倍速;NC/DC 默认以
1.5x / 0.75x 播放,也可指定倍速,音乐音高倍率固定为 1.5 / 0.75,NC 还叠加节拍鼓点。
速度模组不能混用。
Standard 的 AT 显示自动游玩光标,Catch 的 AT 显示自动接盘、Dash 拖尾和香蕉雨路线。
太鼓 PNG 转盘显示总击打数与时长,GIF 和 MP4 显示完整空心转盘、剩余击打数及完成淡出。
四模式 MP4 可通过
render.<mode>.mp4.style.ENABLE_STORYBOARD 和 ENABLE_BACKGROUND_VIDEO 启用故事板及背景视频,
两项默认关闭;<mode> 为 standard、taiko、catch 或 mania。
Taiko HD 隐藏普通音符和连打刻度,保留连打条与气球;Mania HD 让音符头、长按主体 在判定线附近渐隐,遮罩随连击扩大。HD 不会遮住 Mania 判定线、键道背景或 SV 提示。 Catch HD 在 Kiai 区段持续保留淡淡的物件轮廓,不随 BPM 闪烁;区段结束后恢复普通 HD。 圆形预览样式暂用约 30% 不透明度近似轮廓亮度,不逐像素复刻皮肤的 lighting 纹理。
FL 在 Standard 跟随自动光标(滑条期间额外暗化),在 Catch 跟随接盘,在 Taiko 固定于判定区; Mania FL 只保留中部横向可视带。Standard、Taiko、Catch 在 100/200 combo 时缩小光圈。 预览没有玩家输入或回放,轨迹用谱面物件之间的插值估算,连击按无 miss 进度计算; Standard 的光圈跟随延迟使用连续阻尼近似,Catch 香蕉雨期间沿用相邻水果的插值路线。 Taiko、Catch、Mania 的 PNG 是静态概览,不支持 HD/FL;Standard 的 PNG 快照支持二者。
异步取消与并发
上游 Rust API 当前是同步接口,没有提供取消令牌。取消 generate_preview_async() 所在的
Python task 不会中止已经开始的原生渲染;Bot 集成时应使用 semaphore 限制并发。若需要真正的
超时中止,应先在上游 library API 增加协作式取消能力。
本地开发
uv sync
uv run maturin develop
uv run pytest
cargo test -p osu-beatmap-preview-core -p osu-beatmap-preview-cli
发布
推送 v* tag 后,GitHub Actions 会构建 Windows、Linux 和 macOS wheel,并通过 PyPI
Trusted Publishing 发布。发布前需要:
- 在 GitHub 创建名为
pypi的 environment; - 在 PyPI 为该 GitHub 仓库配置 Trusted Publisher;
- 确认对应版本已经同时写入
Cargo.toml和pyproject.toml。
许可证
本项目采用 MIT License。上游渲染器同样采用 MIT License,版权归其贡献者所有。
Metadata
Release files for osu-beatmap-preview-py 0.1.10
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| osu_beatmap_preview_py-0.1.10.tar.gz | 1.4 MB | Details |
Built distributions (wheels)
| File | Reset | |||
|---|---|---|---|---|
| osu_beatmap_preview_py-0.1.10-cp310-abi3-win_amd64.whl | CPython 3.10 | abi3 | Windows x86-64 | Details |
| osu_beatmap_preview_py-0.1.10-cp310-abi3-manylinux_2_28_x86_64.whl | CPython 3.10 | abi3 | Linux glibc 2.28+ x86-64 | Details |
| osu_beatmap_preview_py-0.1.10-cp310-abi3-manylinux_2_28_aarch64.whl | CPython 3.10 | abi3 | Linux glibc 2.28+ ARM64 | Details |
| osu_beatmap_preview_py-0.1.10-cp310-abi3-macosx_11_0_arm64.whl | CPython 3.10 | abi3 | macOS 11.0+ ARM64 | Details |
| osu_beatmap_preview_py-0.1.10-cp310-abi3-macosx_10_12_x86_64.whl | CPython 3.10 | abi3 | macOS 10.12+ x86-64 | Details |
Total release size: 21.9 MB
Release files / osu_beatmap_preview_py-0.1.10.tar.gz
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