# 使用 Homebrew 安装 ffmpeg2theora

查看 ffmpeg2theora 的安装路径、可执行文件、元数据以及面向 AI 代理工作流的安全说明。

## 安装

```sh
sudo av install brew:ffmpeg2theora
```

其他安装命令:

### macOS

- Homebrew (100%):

```sh
brew install ffmpeg2theora
```

  证据: local Homebrew formula metadata

## 软件包事实

- **软件包键:** brew:ffmpeg2theora
- **软件包管理器:** Homebrew
- **版本:** 0.30
- **来源摘要:** Convert video files to Ogg Theora format
- **主页:** <https://gitlab.xiph.org/xiph/ffmpeg2theora>
- **最后更新:** 2026-08-02T16:35:31+09:00
- **已生成:** 2026-08-03T19:37:03+00:00

## 可执行文件

- ffmpeg2theora (别名)

## 安装行为

- Bottle: 不可用

## 版本和新鲜度

- 页面生成时间: 2026-08-03
- 管理器版本: 0.30
## 项目历史与用法

ffmpeg2theora is a focused converter from the Ogg/Theora era: it uses FFmpeg's decoding reach to turn media files into Ogg Theora video and Ogg Vorbis audio.

### 项目历史

The official README states the original idea plainly: convert anything FFmpeg could decode into Theora, with a binary that could be deployed alongside sites such as v2v.cc so many people could encode clips with the same settings.

The changelog begins at 0.1 and shows a rapid 2004-era evolution: resize options, quality controls, stdin and Kino export work, presets, cropping, metadata, stream selection, and better support for FFmpeg API changes.

### 采用历史

ffmpeg2theora belongs to the period when Ogg Theora/Vorbis was a prominent free-software web/video target. Its official materials mention a Kino export plugin, subtitles embedded in Ogg streams, frontend modes, and default `.ogv` output, all signs of practical adoption around desktop video and web publishing workflows.

Later changelog entries show maintenance following FFmpeg and libtheora changes through releases such as 0.27 with FFmpeg 0.6, 0.28 with FFmpeg 0.7, 0.29 with current FFmpeg API updates, and 0.30 with FFmpeg 2.9 compile fixes.

### 使用方式

The basic official usage is intentionally simple: run `ffmpeg2theora clip.avi` and get `clip.ogv`. The manpage documents options for output files, Ogg Skeleton metadata, seek indexes, start/end times, presets, quality/bitrate settings, scaling, cropping, deinterlacing, subtitles, and two-pass encoding.

Its package role is narrower than FFmpeg itself: install it when the desired output is specifically Ogg Theora/Vorbis and a dedicated converter is more convenient than composing a raw FFmpeg command.

### 为什么软件包爱好者会关心

ffmpeg2theora is historically interesting because it packages a policy decision on top of FFmpeg: decode broadly, encode to a free Ogg/Theora target with shared defaults.

For maintainers, it also illustrates the cost of small codec-wrapper tools that ride FFmpeg internals. The changelog repeatedly records updates needed as FFmpeg APIs, libtheora, and Ogg tooling changed.

### 时间线

- 2004: 0.1 initial version appears in the official changelog.
- 2004: 0.5 adds Kino export work and stdin support.
- 2008: 0.21 switches the default extension to `.ogv` and enables Ogg Skeleton by default.
- 2009: 0.25 adds JSON source info, stream selection, libtheora 1.1 API work, and two-pass encoding.
- 2014: 0.30 ships bug fixes and FFmpeg 2.9 compile updates.

### Related projects

- FFmpeg provides the decoding foundation.
- Theora, Vorbis, Ogg Skeleton, libkate, and Kino are related technologies or integrations documented by the project.

### 来源

- <https://gitlab.xiph.org/xiph/ffmpeg2theora>
- <https://gitlab.xiph.org/xiph/ffmpeg2theora/-/raw/master/README>
- <https://gitlab.xiph.org/xiph/ffmpeg2theora/-/raw/master/ChangeLog>
- <https://gitlab.xiph.org/xiph/ffmpeg2theora/-/raw/master/ffmpeg2theora.1>


## 安全说明

broad file, network, media, or database tool signal.

- **Geiger 风险:** blue / 中
- broad file, network, media, or database tool signal


## Combined YAML source

View the package source record on GitHub. [combined/ffmpeg2theora.yml](https://github.com/mxcl/pkgdb/blob/main/combined/ffmpeg2theora.yml)


## 来源

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- cross-ecosystem install command graph