Software Architect & Principal Engineer · Tokyo, Japan
Building open source tools for video engineers and multimedia developers.
15+ years in distributed systems, cloud infrastructure, and streaming technology.
Business inquires → alf@alfg.dev
The IDE for Video Engineers.
video-commander.com — A desktop application for media engineers built with Rust, Tauri, and React. Designed for professionals working with video encoding, inspection, and processing workflows.
| Project | Description | Stack |
|---|---|---|
| FFmpeg Commander | FFmpeg command builder | JavaScript |
| MP4 Inspector | Web-based MP4 file inspection tool | RustWasm |
| FFProbe Wasm | Web-based FFProbe | C++Wasm |
| Filtergrapher | FFmpeg filtergraph editor | C++Wasm |
| ABR Player | Adaptive streaming test player | JavaScript |
| Media Cast | Google Cast - Chrome Sender & CAF Test Player | JavaScript |
| PBM Viewer | A Web-based PBM Image Viewer. | JavaScript |
| Project | Description | Stack |
|---|---|---|
| mp4-rust | MP4 reader + writer library | Rust |
| mp4 | MP4 reader library | Go |
| widevine | Widevine Cloud package | Go |
| Project | Description | Stack |
|---|---|---|
| Open Encoder | Open Source Cloud Encoding Platform in Go + Vue.js. | GoJavaScript |
| Project | Description | Stack |
|---|---|---|
| docker-nginx-rtmp | nginx-rtmp-module container | Dockerfile |
| docker-nginx-vod | nginx-vod-module container | Dockerfile |
| docker-ffmpeg | FFmpeg from source on Alpine | Dockerfile |
| docker-bento4 | Bento4 from source on Alpine | Dockerfile |
| Project | Description | Stack |
|---|---|---|
| ffmpegd | FFmpeg websocket server for FFmpeg Commander. | Go |
| bifextract | CLI utility for extracting images from a BIF file. | Go |
| Project | Description | Stack |
|---|---|---|
| A Quick Dive into MP4 | A technical intro the MP4 container byte structure. | Markdown |
| FFmpeg + WebAssembly | FFmpeg and WebAssembly in the browser. | Markdown |
| FFmpeg for Instagram | A guide and collection of FFmpeg scripts for encoding video for Instagram. | Markdown |
dev.to/alfg — Articles on FFmpeg, WebAssembly, multimedia engineering, and more.