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How to capture and stream your gaming session on Linux
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============================================================
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### On this page
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1. [Capture settings][1]
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2. [Setting up the sources][2]
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3. [Transitioning][3]
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4. [Conclusion][4]
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There may not be many hardcore gamers who use Linux, but there certainly are quite a lot Linux users who like to play a game now and then. If you are one of them and would like to show the world that Linux gaming isn’t a joke anymore, then you will find the following quick tutorial on how to capture and/or stream your gaming session interesting. The software tool that I will be using for this purpose is called “[Open Broadcaster Software Studio][5]” and it is maybe the best of the kind that we have at our disposal.
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### Capture settings
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Through the top panel menu, we choose File → Settings and then we select the “Output” to set our preferences for the file that is to be produced. Here we can set the audio and video bitrate that we want, the destination path for the newly created file, and the file format. A rough setting for the quality is also available on this screen.
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[
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][6]
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If we change the output mode on the top from “Simple” to “Advanced” we will be able to set the CPU usage load that we allow OBS to induce to our system. Depending on the selected quality, the CPU capabilities, and the game that we are capturing, there’s a CPU load setting that won’t cause the frames to drop. You may have to do some trial to find that optimal setting, but if the quality is set to low you shouldn’t worry about it.
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[
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][7]
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Next, we go to the “Video” section of the settings where we can set the output video resolution that we want. Pay attention to the down-scaling filtering method as it makes all the difference in regards to the quality of the end result.
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][8]
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You may also want to bind hotkeys for the starting, pausing, and stopping of a recording. This is especially useful since you will be seeing your game’s screen while recording. To do this, choose the “Hotkeys” section in the settings and assign the keys that you want in the corresponding boxes. Of course, you don’t have to fill out every box, only the ones you need.
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][9]
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If you are interested in streaming and not just recording, then select the “Stream” category of settings and then you may select the streaming service among the 30 that are supported including Twitch, Facebook Live and Youtube, and then select a server and enter a stream key.
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][10]
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### Setting up the sources
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On the lower left, you will find a box entitled as “Sources”. There we press the plus sign button to add a new source that is essentially our recording media source. Here you can set audio and video sources, but images and even text as well.
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][11]
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The first three concern audio sources, the next two images, the JACK option is for live audio capturing from an instrument, the Media Source is for the addition of a file, etc. What we are interested in for our purpose are the “Screen Capture (XSHM)”, the “Video Capture Device (V4L2)”, and the “Window Capture (Xcomposite) options.
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The screen capture option let’s you select the screen that you want to capture (including the active one), so everything is recorded. Workspace changes, window minimizations, etc. It is a suitable option for a standard bulk recording that will get edited before getting released.
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Let’s explore the other two. The Window Capture will let us select one of our active windows and put it into the capturing monitor. The Video Capture Device is useful in order to put our face right there on a corner so people can see us while we’re talking. Of course, each added source offers a set of options that we can fiddle with in order to achieve the result that we are after.
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][12]
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The added sources are re-sizable and also movable along the plane of the recording frame, so you may add multiple sources, arrange them as you like, and finally perform basic editing tasks by right-clicking on them.
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][13]
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### Transitioning
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Finally, let’s suppose that you are streaming your gaming session and you want to be able to rotate between the game view and yourself (or any other source). To do this, change to “Studio Mode” from the lower right and add a second scene with assigned another source assigned to it. You may also rotate between sources by unchecking the “Duplicate scene” and checking the “Duplicate sources” on the gear icon next to the “Transitions”. This is helpful for when you want to show your face only for short commentary, etc.
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][14]
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There are many transition effects available in this software and you may add more by pressing the plus sign icon next to “Quick Transitions” in the center. As you add them, you will also be prompt to set them.
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### Conclusion
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The OBS Studio software is a powerful piece of free software that works stably, is fairly simple and straightforward to use, and has a growing set of [additional plugins][15] that extend its functionality. If you need to record and/or stream your gaming session on Linux, I can’t think of a better solution other than using OBS. What is your experience with this or other similar tools? Share in the comments and feel free to also include a video link that showcases your skills. :)
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--------------------------------------------------------------------------------
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via: https://www.howtoforge.com/tutorial/how-to-capture-and-stream-your-gaming-session-on-linux/
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作者：[Bill Toulas ][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:https://www.howtoforge.com/tutorial/how-to-capture-and-stream-your-gaming-session-on-linux/
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[1]:https://www.howtoforge.com/tutorial/how-to-capture-and-stream-your-gaming-session-on-linux/#capture-settings
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[2]:https://www.howtoforge.com/tutorial/how-to-capture-and-stream-your-gaming-session-on-linux/#setting-up-the-sources
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[3]:https://www.howtoforge.com/tutorial/how-to-capture-and-stream-your-gaming-session-on-linux/#transitioning
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[4]:https://www.howtoforge.com/tutorial/how-to-capture-and-stream-your-gaming-session-on-linux/#conclusion
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[5]:https://obsproject.com/download
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[6]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_1.png
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[7]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_2.png
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[8]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_3.png
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[9]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_4.png
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[10]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_5.png
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[11]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_6.png
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[12]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_7.png
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[13]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_8.png
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[14]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_9.png
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[15]:https://obsproject.com/forum/resources/categories/obs-studio-plugins.6/
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如何在 Linux 中捕获并流式传输你的游戏会话
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============================================================
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### 在本页中
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1. [捕获设置][1]
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2. [设置源][2]
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3. [过渡][3]
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4. [总结][4]
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也许没有许多铁杆玩家使用 Linux，但现在肯定有很多 Linux 用户喜欢玩游戏。如果你是其中之一，并希望向世界展示 Linux 游戏不再是一个笑话，那么你会发现下面这个关于如何捕捉并且/或者流式播放游戏的快速教程。我在这将用一个名为 “[Open Broadcaster Software Studio][5]” 的软件，这可能是我们找到最好的一种。
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### 捕获设置
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在顶层菜单中，我们选择 File → Settings，然后我们选择 “Output” 来设置要生成的文件的选项。这里我们可以设置想要的音频和视频的比特率、新创建的文件的目标路径和文件格式。这上面还提供了粗略的质量设置。
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][6]
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如果我们将顶部的输出模式从 “Simple” 更改为 “Advanced”，我们就能够设置 CPU 负载，使 OBS 能够控制系统。根据所选的质量，CPU 能力和捕获的游戏，存在一个 CPU 负载设置不会导致帧丢失。你可能需要做一些试验才能找到最佳设置，但如果质量设置为低，则不用担心。
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][7]
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接下来，我们转到设置的 “Video” 部分，我们可以设置我们想要的输出视频分辨率。注意缩小过滤方法，因为它使最终的质量有所不同。
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][8]
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你可能还需要绑定热键以启动、暂停和停止录制。这是特别有用的，因为你可以在录制时看到游戏的屏幕。为此，请在设置中选择 “Hotkeys” 部分，并在相应的框中分配所需的按键。当然，你不必每个框都填写，你只需要填写所需的。
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][9]
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如果你对流式传输感兴趣，而不仅仅是录制，请选择 “Stream” 分类的设置，然后你可以选择支持的 30 种流媒体服务，包括Twitch、Facebook Live 和 Youtube，然后选择服务器并输入 流密钥。
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][10]
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### 设置源
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在左下方，你会发现一个名为 “Sources” 的框。我们按下加号好添加一个新的源，它本质上就是我们录制的媒体源。在这你可以设置音频和视频源，但是图像甚至文本也是可以的。
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][11]
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前三个是关于音频源，接下来的两个是图像，JACK 选项用于从乐器捕获的实时音频，媒体源用于添加文件等。这里我们感兴趣的是 “Screen Capture (XSHM)”、“Video Capture Device (V4L2)” 和 “Window Capture (Xcomposite)” 选项。
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屏幕捕获选项让你选择要捕获的屏幕（包括活动屏幕），以便记录所有内容。如工作区更改、窗口最小化等。对于标准批量录制来说，这是一个适合的选项，它可在发布之前进行编辑。
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我们来探讨另外两个。Window Capture 将让我们选择一个活动窗口并将其放入捕获监视器。为了将我们的脸放在一个角落，视频捕获设备是有用的，这样人们可以在我们说话时看到我们。当然，每个添加的源都提供了一组选项来供我们实现我们最后要的效果。
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][12]
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添加的来源是可以调整大小的，也可以沿着录制帧的平面移动，因此你可以添加多个来源，并根据需要进行排列，最后通过右键单击执行基本的编辑任务。
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][13]
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### 过渡
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最后，我们假设你正在流式传输游戏会话，并希望能够在游戏视图和自己（或任何其他来源）之间切换。为此，请从右下角切换为“Studio Mode”，并添加一个分配给另一个源的场景。你还可以通过取消选中 “Duplicate scene” 并检查 “Transitions” 旁边的齿轮图标上的 “Duplicate sources” 来切换。 当你想在简短评论中显示你的脸部时，这很有帮助。
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][14]
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这个软件有许多过渡效果，你可以按中心的 “Quick Transitions” 旁边的加号图标添加更多。当你添加它们时，还将会提示你进行设置。
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### 总结
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OBS Studio 是一个功能强大的免费软件，它工作稳定，使用起来相当简单直接，并且拥有越来越多的扩展其功能的[附加插件][15]。如果你需要在 Linux 上记录并且/或者流式传输游戏会话，除了使用 OBS 之外，我无法想到其他更好的解决方案。你有其他类似工具的经验么？ 请在评论中分享也欢迎包含一个展示你技能的视频链接。:)
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--------------------------------------------------------------------------------
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via: https://www.howtoforge.com/tutorial/how-to-capture-and-stream-your-gaming-session-on-linux/
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作者：[Bill Toulas ][a]
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译者：[geekpi](https://github.com/geekpi)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:https://www.howtoforge.com/tutorial/how-to-capture-and-stream-your-gaming-session-on-linux/
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[1]:https://www.howtoforge.com/tutorial/how-to-capture-and-stream-your-gaming-session-on-linux/#capture-settings
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[2]:https://www.howtoforge.com/tutorial/how-to-capture-and-stream-your-gaming-session-on-linux/#setting-up-the-sources
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[3]:https://www.howtoforge.com/tutorial/how-to-capture-and-stream-your-gaming-session-on-linux/#transitioning
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[4]:https://www.howtoforge.com/tutorial/how-to-capture-and-stream-your-gaming-session-on-linux/#conclusion
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[5]:https://obsproject.com/download
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[6]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_1.png
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[7]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_2.png
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[8]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_3.png
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[9]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_4.png
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[10]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_5.png
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[11]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_6.png
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[12]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_7.png
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[13]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_8.png
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[14]:https://www.howtoforge.com/images/how-to-capture-and-stream-your-gaming-session-on-linux/big/pic_9.png
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[15]:https://obsproject.com/forum/resources/categories/obs-studio-plugins.6/
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