开源免费在线直播工具 OBS Studio 中文版的完整名称是：OBS Studio。OBS Studio 是一款开源免费可以直接视频直播的软件，该软件与网站中的直播软件不一样，他是一款国外的互联网流媒体直播软件，其直播的构架模式采用开源的方式进行录制，常常用在游戏直播中，软件支持串流、音频、视频等设置，能够让用户可以自由选择自己的直播模式，您可以选择让人们看到指定的视频展现模式，可操作性非常丰富，对于不同的朋友设计了具体的直播方案，充分考虑到了所有类型的直播，操作起来也是比较方便的，可以设置多个场景，方便用户随时切换。

开放式广播软件是免费开源软件，用于视频录制和直播，支持的功能包括：
编码使用 H264（X264）和 AAC。
支持英特尔快速同步视频(QSV)和 NVENC。
无限数量的场景和来源。
直播 RTMP 流媒体到 Twitch, YouTube, DailyMotion, Hitbox 和更多。
MP4或者FLV文件输出。
基于GPU的高性能游戏流媒体游戏捕获。
支持 DirectShow 捕获设备（摄像头、采集卡、等）。
Windows 8 高速监控捕捉支持。
双线性或 lanczos3 重采样。

OBS Studio 软件功能

高性能实时视频/音频采集和混音，具有无限的场景，您可以通过自定义切换无缝切换。
过滤器用于视频信号源诸如图像掩蔽，色彩校正，色度/颜色键控，等等。
直观的音频混频器，带过滤器的功能，如噪声门，噪声抑制和增益。
功能强大且易于使用的配置选项。添加新的来源，复制现有的，并毫不费力地调整它们的属性。
改进和精简设置面板，可快速配置您的播放和录音。
光亮和黑暗的主题可供适合你的喜好
OBS Studio 是完全免费的！没有一毛钱！有没有订阅，根本没有付款。OBS Studio 是提供给大家，源代码公开发布在GitHub上的人来帮助作出贡献。
而 OBS Studio 将始终保持免费，欢迎您来捐赠，以支持我们的发展努力。
OBS Studio 可以让你推他们住之前预览场景和来源。
调整你的场景和来源或创建新的，并确保他们是完美的前观众看到过他们
OBS Studio 都配备了功能强大的API，使插件开发，以提供特定于您的需求进一步定制和功能。在流社区开发者合作，以获得您所需要的功能。
虽然目前仍处于早期阶段，OBS Studio 已经拥有流行的版本浏览器插件
今后，额外的插件可以在发现 OBS Studio 插件部分

OBS Studio 许可证

GPL v2

官方主页

What’s new in OBS Studio 27.1.1
September 28, 2021
27.1.1 Hotfix:
Fixed an issue that caused an incorrect deployment of 27.1 on Windows, causing the Display Capture Source to look washed out [Jim]
New Features and Additions:
Added YouTube integration [yuriy-chumak]
Allows the ability to connect your YouTube account without using a stream key
Adds various features when setting up your stream that allows you to set settings for each stream: your stream title, description, privacy settings, scheduling streams, and more
YouTube streams are created and managed via a new “Manage Broadcast” button next to “Start Streaming” [derrod]
Also features a chat dock for public and unlisted broadcasts (currently read-only) [derrod]
Bandwidth testing is now supported in the Auto-Configuration wizard when logged in [derrod]
Special thanks to the developers at YouTube for working with us directly on the initial implementation of this feature and helping to make it a reality
Added an 18-scene multiview option [XDelta]
Added a “Mask Only” option to the stinger track matte [Jim]
Added a feature to browser sources to allow limited control over OBS, which must be explicitly granted by the user [gxalpha]
Added an option to draw safe areas in the preview (same as the safe areas in the multiview) [cg2121]
Tweaks:
Added performance fixes for Windows 11 and Windows 10 Insider builds [rcdrone]
Names for displays on macOS Display capture are now human readable names [Developer-Ecosystem-Engineering]
Auto-Remux now works with Replay Buffer [gxalpha]
Optimized the media source, reducing unnecessary CPU usage [rcdrone]
The missing files dialog will now detect missing files for stingers as well [gxalpha]
Remove “Enter Fullscreen” from the menu on macOS because macOS already has a builtin fullscreen mode interface option [gxalpha]
Sources that are invisible/hidden will now have their text dimmed as well in the source list [gxalpha]
Added a “Missing Files Check” menu item to the “Scene Collections” menu [gxalpha]
Added source icons to the source toolbar [cg2121]
Image sources that use gif files now will animate in preview when using studio mode [cg2121]
Enabled Alpha option in the Freetype 2 Text Source’s Font dialog [norihiro]
Added the ability to disable the Missing Files dialog using a startup flag [tt2468]
Added Ctrl+R on Linux and Cmd+R on macOS to reload browser panels [WizardCM]
Re-enabled drag & drop for scenes & sources on Linux [GeorgeStavracas]
Minor UI improvements to various areas, including Source Toolbar, Transform dialog and more [Warchamp7]
Improved internal behaviour in the game capture source to avoid unnecessary re-hooking [rcdrone]
Wayland capture sources are now available without having to pass custom parameters to OBS from the command line [GeorgeStavracas/tytan652]
Bug Fixes:
Fixed a bug on Wayland on Linux where the cursor would capture slightly mispositioned [GeorgeStavracas]
Fixed a bug with Dynamic Bitrate that would cause it to malfunction when used with hardware encoders [R1CH]
Fixed a bug on Wayland where capture methods (ie window/desktop) that weren’t fully supported would appear anyway [GeorgeStavracas]
Fixed a variety of colour-related bugs in window capture and browser source [rcdrone]
Fixed a bug where track matte stingers would flash previous frames sometimes [Jim]
Fixed an issue where the projectors would list incorrect resolutions for DPI-scaled monitors [RytoEX]
Fixed a crash on exit that could occur when using 3rd party plugins that hold references to sources with audio monitoring enabled [R1CH]
Fixed a bug where the Game Capture source would occasionally still capture overlays with the “Capture third-party overlays” option disabled [kokole]
Fixed a bug where keyboard interaction did not work correctly on macOS [WizardCM]
Fixed a bug where the replay buffer could crash when plugins interact with it [exeldro]
Fixed an issue where the mask/blend filter looked incorrect on version 27 [rcdrone]
Fixed a bug where deleting a scene that’s used as a source wouldn’t Undo/Redo properly [exeldro]
Fixed a bug where the Auto-Remux would pop up blank sometimes [gxalpha]
Fixed a bug where performing a redo for creating sources would cause sources to be created in the wrong scene [gxalpha]
Fixed the “Deactivate when not showing” option in the Decklink source not working properly [cg2121]
Fixed a bug where themes were unable to use previously defined palette variables [WizardCM]
Fixed log viewer taking up unnecessary extra memory when closed [cg2121]
Fixed a crash that could occur when exiting OBS with decklink output active [R1CH]
Fixed an issue where saving screenshots or the replay buffer would fail if the output filename format contained a directory path [R1CH]
Fixed a crash that could occur when a connection was dropped during the Auto-Configuration Wizard’s bandwidth-testing stage [derrod]
Disabled “Network Optimizations” when using RTMPS because of incompatibility [R1CH]
Fixed an issue where setting a zero second auto reconnect delay would cause OBS to stop responding if disconnected [R1CH]

OBS工作室版

下载以在Windows, Mac以及Linux上简单且快速的开始串流。

https://github.com/obsproject/obs-studio/releases