# ncmdump を Homebrew, MacPorts, winget でインストール

ncmdump のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。

## インストール

```sh
sudo av install brew:ncmdump
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install ncmdump
```

  証拠: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install ncmdump
```

  証拠: MacPorts ports tree: multimedia/ncmdump/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

### Windows

- winget (92%):

```sh
winget install --id TaurusXin.ncmdump -e
```

  証拠: Windows Package Manager source index: TaurusXin.ncmdump from https://cdn.winget.microsoft.com/cache/source.msix

## パッケージ情報

- **パッケージキー:** brew:ncmdump
- **パッケージマネージャ:** Homebrew
- **パッケージマネージャページ:** <https://formulae.brew.sh/formula/ncmdump>
- **バージョン:** 1.5.1
- **ソース概要:** Convert Netease Cloud Music ncm files to mp3/flac files
- **ホームページ:** <https://github.com/taurusxin/ncmdump>
- **リポジトリ:** <https://github.com/taurusxin/ncmdump>
- **ライセンス:** MIT
- **ソースアーカイブ:** <https://github.com/taurusxin/ncmdump/archive/refs/tags/1.5.1.tar.gz>
- **生成日時:** 2026-08-04T22:13:35+00:00

## 実行可能ファイル

- ncmdump (cli)
- ncmdump (エイリアス)

## 依存関係

- taglib

## ビルド依存関係

- cmake

## インストール挙動

- post-install フック: 未定義
- Bottle: 利用可能 対象 arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux

## バージョンと鮮度

- ページ生成日: 2026-08-04
- マネージャ版: 1.5.1
- ローカルデータ: OK
- 上流リポジトリ: https://github.com/taurusxin/ncmdump
- 検出された最新: 1.5.1 (最新)
- 情報: No package-manager update timestamp was available.
## プロジェクトの歴史と使われ方

ncmdump is a small C++ command-line converter for NetEase Cloud Music `.ncm` cache files. Its README describes converting downloaded NCM cache files to MP3 or FLAC and the Homebrew formula packages the same purpose.

### プロジェクトの歴史

The GitHub repository was created on 2021-10-06. The README says this C++ version was a cross-platform port and reproduction of the earlier anonymous5l/ncmdump project, which the README says had been deleted, and claims it was the earliest C++ version and first program on the market to support NCM conversion. Version 1.3.0 is called out in the README for fixing filenames containing UTF-8 characters such as Chinese, Japanese, Korean, and emoji, and for adding DLL builds for use from other languages.

### 採用の歴史

ncmdump's adoption is concentrated in the NetEase Cloud Music ecosystem and Chinese-language toolchains. The GitHub page observed for this batch showed about 4.1k stars and 488 forks, while Homebrew, MacPorts, and winget packaging make the CLI available outside ad-hoc binary downloads. The Homebrew formula API response consulted for this July 2026 batch reported 68 install-on-request events in 30 days and 649 in 365 days.

### 使われ方

The README documents single-file conversion, multiple input files, directory mode with `-d`, recursive traversal with `-r`, output selection with `-o`, source deletion after successful processing with `-m`, and version/help flags. The maintainer has clarified in GitHub Discussions that the tool decrypts and extracts the original MP3 or FLAC data from the `.ncm` file rather than transcoding between formats.

### パッケージ好きにとっての重要性

ncmdump is a format-escape utility: valuable when a user's music files are locked in NetEase's `.ncm` wrapper and they want normal player/library compatibility. It is niche, but the packaging story matters because users often need a trusted binary instead of random converter sites.

### タイムライン

- 2021-10-06: GitHub repository created.
- 1.3.0: README notes full UTF-8 filename fixes and DLL build support.
- 2025-10-05: GitHub page observed release 1.5.1 as latest in the rendered releases panel.

### Related projects

- anonymous5l/ncmdump, ncmdump-go, ncmdump-gui, NetEase Cloud Music

### ソース

- <https://api.github.com/repos/taurusxin/ncmdump>
- <https://formulae.brew.sh/api/formula/ncmdump.json>
- <https://github.com/taurusxin/ncmdump>
- <https://github.com/taurusxin/ncmdump/discussions/66>


## セキュリティノート

infrastructure mutation or orchestration signal.

- **Geiger リスク:** orange / 中
- infrastructure mutation or orchestration signal

## ソースデータベース詳細

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** ncmdump
- **Version Scheme:** 0
- **Revision:** 0
- **Head Version:** HEAD
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** no
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** head, stable

## 他のパッケージマネージャ記録

- MacPorts - ncmdump: normalized package name match | MacPorts ports tree: multimedia/ncmdump/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1
- winget - TaurusXin.ncmdump: normalized package name match | Windows Package Manager source index: TaurusXin.ncmdump from https://cdn.winget.microsoft.com/cache/source.msix
- winget - xiSage.ncmdump-net: normalized package name match | Windows Package Manager source index: xiSage.ncmdump-net from https://cdn.winget.microsoft.com/cache/source.msix


## 関連リンク

- [Source-control packages](https://pkg.so/ja/source-control-tools/) - Belongs to a source-control command family.
- [Secret-risk packages](https://pkg.so/ja/secret-risk-packages/) - Has protected-tool coverage, approval-gate, or non-low Geiger security signals.
- [Terminal utility packages](https://pkg.so/ja/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Networking and protocol packages](https://pkg.so/ja/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [taglib](https://pkg.so/ja/brew/taglib/) - Runtime dependency declared by Homebrew.
- [cmake](https://pkg.so/ja/brew/cmake/) - Build dependency declared by Homebrew.
- [shntool](https://pkg.so/ja/brew/shntool/) - Shares pkgdb curated category or tags: audio, cli, conversion, media.
- [libsndfile](https://pkg.so/ja/brew/libsndfile/) - Shares pkgdb curated category or tags: audio, cli, media.
- [flac](https://pkg.so/ja/brew/flac/) - Shares pkgdb curated category or tags: audio, cli, media.
- [alsa-lib](https://pkg.so/ja/brew/alsa-lib/) - Shares pkgdb curated category or tags: audio, cli, media.
- [rubberband](https://pkg.so/ja/brew/rubberband/) - Shares pkgdb curated category or tags: audio, cli, media.
- [pulseaudio](https://pkg.so/ja/brew/pulseaudio/) - Shares pkgdb curated category or tags: audio, cli, media.
- [sox](https://pkg.so/ja/brew/sox/) - Shares pkgdb curated category or tags: audio, cli, media.
- [ladspa-sdk](https://pkg.so/ja/brew/ladspa-sdk/) - Shares pkgdb curated category or tags: audio, cli, media.
- [kew](https://pkg.so/ja/brew/kew/) - Both packages work with overlapping file formats or content types. Shared terms: audio, cli, media, music, taglib.
- [rsgain](https://pkg.so/ja/brew/rsgain/) - Both packages work with overlapping file formats or content types. Shared terms: audio, cli, media, taglib.
- [cmusfm](https://pkg.so/ja/brew/cmusfm/) - Both packages work with overlapping file formats or content types. Shared terms: audio, cli, media, music.

## Combined YAML source

View the package source record on GitHub. [combined/ncmdump.yml](https://github.com/mxcl/pkgdb/blob/main/combined/ncmdump.yml)


## ソース

- pkg.so package database
- Geiger risk classifier
- package-page enrichment
- curated package history
- package version freshness
- pkgdb category and tag curation
- package relationship graph
- external package-manager database matches
- cross-ecosystem install command graph