# tivodecode を Homebrew, MacPorts, Nix でインストール

tivodecode 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:tivodecode
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install tivodecode
```

  証拠: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install tivodecode
```

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

### Linux

- Nix (92%):

```sh
nix profile install nixpkgs#tivodecode
```

  証拠: nixpkgs package indexes: pkgs/by-name/ti/tivodecode/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

## パッケージ情報

- **パッケージキー:** brew:tivodecode
- **パッケージマネージャ:** Homebrew
- **バージョン:** 0.2pre4
- **ソース概要:** Convert .tivo to .mpeg
- **ホームページ:** <https://tivodecode.sourceforge.net/>
- **生成日時:** 2026-08-03T19:37:03+00:00

## 実行可能ファイル

- tdcat (エイリアス)
- tivodecode (エイリアス)

## インストール挙動

- Bottle: 利用不可

## バージョンと鮮度

- ページ生成日: 2026-08-03
- マネージャ版: 0.2pre4
## プロジェクトの歴史と使われ方

tivodecode is a portable command-line decoder for TiVoToGo recordings. Its official project page describes it as converting a .TiVo file into a normal MPEG file when given the Media Access Key for the TiVo that recorded it.

### プロジェクトの歴史

The project grew out of the TiVoToGo era, when TiVo provided Windows-oriented access paths but users on Unix-like systems wanted a file-and-pipe friendly tool. The official site positions tivodecode as providing the same kind of access as TiVo's DirectShow-based Windows path, but in portable C and on the command line.

SourceForge lists the project as registered on 2006-11-30 and categorized as a video converter written in C. The project remained small and specialized, but its 0.1.4 release added support for reading the MAK from ~/.tivodecode_mak, matching its common batch-conversion usage.

### 採用の歴史

Adoption was concentrated among TiVo hobbyists, Linux and Mac users, and people building personal DVR export workflows. The official site points users to related TiVo tools such as Galleon for downloading recordings and to third-party tools or GUIs built around tivodecode.

The supplied package-manager facts show the tool packaged by Homebrew, MacPorts, and Nix, which fits its long-tail role as a niche media utility kept available for users with old .TiVo archives or TiVoToGo workflows.

### 使われ方

The typical use case is decoding a downloaded .TiVo program stream to MPEG after obtaining the file from the TiVo's built-in web server or another TiVo transfer tool. The official documentation notes that the valid MAK is still required and that the tool is not intended to bypass TiVo protection.

For package users, tivodecode is mostly a scriptable terminal utility: it can run on files or pipes, can read the MAK from ~/.tivodecode_mak, and is useful when a GUI media stack is too heavy for a conversion job.

### パッケージ好きにとっての重要性

tivodecode matters to package collectors because it is a classic example of a small, legally constrained interoperability utility that survived through package managers long after its original consumer-device moment passed.

Its appeal is not broad media conversion, but preserving access to a particular proprietary container in reproducible Unix workflows.

### タイムライン

- 2006-11-30: SourceForge project registered.
- 0.1.4: Current release documented on the official site, adding ~/.tivodecode_mak support.
- 2017-11-16: SourceForge project page lists the last update date.

### Related projects

- TiVoToGo is the TiVo feature that produced the .TiVo files tivodecode targets.
- Galleon is recommended by the official tivodecode site as an open-source SourceForge tool for downloading recordings on non-Windows platforms.
- DirectShowDump and TiVo's DirectShow DLL are cited by the official site as the Windows-oriented functional counterpart.

### ソース

- <https://sourceforge.net/projects/tivodecode/ SourceForge registration date, category, language, operating systems, and project activity>
- <https://tivodecode.sourceforge.net/ official description, MAK note, 0.1.4 config-file note, and TiVo/Galleon usage notes>
- source_facts.package-manager for Homebrew, MacPorts, and Nix packaging


## セキュリティノート

narrow executable package without higher-risk signals.

- **Geiger リスク:** グリーン / 低
- narrow executable package without higher-risk signals


## Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.


## Configuration files

- Unix: ~/.tivodecode_mak

## Credential files

- Unix: ~/.tivodecode_mak
## 他のパッケージマネージャ記録

- Nix - tivodecode: normalized package name match | nixpkgs package indexes: pkgs/by-name/ti/tivodecode/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- MacPorts - tivodecode: normalized package name match | MacPorts ports tree: multimedia/tivodecode/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1


## Combined YAML source

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


## ソース

- pkg.so package database
- Geiger risk classifier
- curated configuration and credential file locations
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph