# BiliBili Stream Recorder

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[简体中文 | Simplified Chinese](README_CN.md)

GitHub is a global platform, and theoretically, everyone should use English. But since this project is mostly meant for Chinese user and rely on a Chinese website [BiliBili](https://live.bilibili.com) ([_wikipedia_](https://en.wikipedia.org/wiki/Bilibili)), all code comments are in Chinese. This README file will always use English so people like _you_ can understand what is this, and perhaps make some use out of it.

[![Crowdin](https://badges.crowdin.net/bililiverecorder/localized.svg)](https://crowdin.com/project/bililiverecorder)

Software UI is available in

- 简体中文 (Source and default)
- 繁体中文
- 日本語
- English

## Install & Use

See [rec.danmuji.org](https://rec.danmuji.org) (in Chinese)

## Feature

- Easy to use
- Reset timestamp to start from 0
- Writes duration info automatically when recoding session ends.
- Start recording when stream starts
- Record multiple stream at same time
- Pure C#, no native dependency like ffmpeg
- Open source!

## Develop & Getting Started

**Visual Studio 2017 / 2019 with .NET Core** and **PowerShell** is required.

Some file are generated by [PreComplie Script](./CI/patch_buildinfo.ps1). Build project to clear errors shown by Visual Studio.

Project | Type | Note
:---:|:---:|:---
BililiveRecorder.WPF | .NET Framework 4.6.2
BililiveRecorder.Core | .NET Standard 2.0
BililiveRecorder.FlvProcessor | .NET Standard 2.0
BililiveRecorder.Server | .NET Core 2.0 | TODO

## Reference & Acknowledgements

- [Adobe Flash Video File Format Specification 10.1.2.01.pdf](https://www.adobe.com/content/dam/acom/en/devnet/flv/video_file_format_spec_v10_1.pdf)
- [coreyauger/flv-streamer-2-file](https://github.com/coreyauger/flv-streamer-2-file)
- [zyzsdy/biliroku](https://github.com/zyzsdy/biliroku) - (probably) first BiliBili stream recording tool.