内容简介:I’m a developer, and sometimes I want to show something I’m making to my friends. Screen sharing on LinuxBut, given the productivity boost felt when given extra screen real-estate, it’s not hard to imagine that a vast portion of developers have multiple mo
Screen sharing on Linux: The state of things
I’m a developer, and sometimes I want to show something I’m making to my friends. Screen sharing on Linux sucks . It works pretty decently if the following two things are true:
- You have only one monitor.
- You are using X11.
But, given the productivity boost felt when given extra screen real-estate, it’s not hard to imagine that a vast portion of developers have multiple monitors. Plus, I really want to use Wayland, but due to the difficulty in screen sharing and a bunch of other problems, I can’t retain the same workflows under a different display server.
Discord
When I’m talking to my friends, I’m (unforunately) using Discord. For those who don’t know, Discord is a bloated chat-and-voice application for Gamers™, and is where we begin simply because of how popular it is.
Discord added screen sharing functionality back in October 2018. It works amazingly well (even for low-latency, high-framerate things like games) as long as you’re using Windows.
Linux is so low-priority for Discord that a bug where Discord wouldn’t start for every Linux user still managed to find its way to the stable branch of the application. Even right now, my Discord client randomly segfaults on several of my Arch installs.
Anyway, for screen sharing on Linux, we find that it works but we can’t separate our two monitors:
This will become a running theme, as Discord’s electron client is using Chromium’s display capture API here.
Jitsi Meet
My next port-of-call for collaboration is Jitsi Meet . This is an open-source, free video conferencing tool. It requires no account, and is almost perfect.
Except : Both Firefox and Chrome suffer from the same issue when trying to screenshare from a multi-head setup on Linux. They do not have the XRandR integration that allows you to choose an individual monitor, despite having the same functionality on other operating systems.
This is such a shame, but it pretty much discounts the entire landscape of web-based collaboration sites with screen sharing support.
A Solution
When I want to show something, I can either:
- Share a single window, which can sometimes just share the entire screen anyway, or sometimes crash the entire chat application if I hide the window by switching to another workspace.
- Share outside of the chat application we’re using
So, I use OBS (which actually has third-party support for wlroots
if you’re on Wayland) and stream to my own RTMP server.
However, nginx-rtmp
lets anyone stream to any endpoint by default. With a tiny Flask application and a bit of configuration , we get that out of the way.
Secondly, latency: RTMP is not designed for a low-latency environment like screen-share collaboration. Plus, its roots are pretty shaky - Macromedia’s Flash-to-server video streaming is not really what we want.
Finally, convenience: To watch my screen, viewers have to open a video client, and point it at my RTMP URL. This is way more friction than just looking at the chat application that’s already open. Plus, most RTMP players have built-in delay, so we resort to weird ffplay -nobuffer
commands to get the latency down. This is really terrible ergonomics.
I have a few ideas to make the situation better:
- Somehow, OBS needs to hook up to a video streaming solution that has some form of low-latency player (with WebRTC?)
- Otherwise, we need a nice, low-latency RTMP player that can remember recently-viewed stream URLs.
- But, ideally: There should be patches for Firefox and Chromium could come that fix the issue of display capture when using multiple displays and/or Wayland. (I tried myself, but, man, compiling a browser is a lot of waiting.)
This is a plea to chat platforms and browser developers to improve the situation on Linux.
以上所述就是小编给大家介绍的《The sad state of screen sharing on desktop Linux》,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对 码农网 的支持!
猜你喜欢:本站部分资源来源于网络,本站转载出于传递更多信息之目的,版权归原作者或者来源机构所有,如转载稿涉及版权问题,请联系我们。
Java EE WEB开发与项目实战
李俊青 / 华中科技大学出版社 / 2011-11 / 59.80元
本书采用工程案例的形式,将日常Java EE项目开发所涉及的技术要点进行了解析,系统介绍了Apache的安装、Tomcat的安装、虚拟主机的配置、开发工具的搭配使用、验证码的使用、过滤器的使用、密码的加密与解密、JavaMail邮件发送、Web在线编辑器的使用、文件上传、数据库连接池、Ajax与Servlet的身份认证、Struts框架的应用、JSF框架的应用、Spring框架的应用、Hibern......一起来看看 《Java EE WEB开发与项目实战》 这本书的介绍吧!
图片转BASE64编码
在线图片转Base64编码工具
UNIX 时间戳转换
UNIX 时间戳转换