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Now, as you might have figured out, the above setup only allows the stream to be accessible by computers or smartphones that are connected to the same local network. UV4L documentation refers to it as a "WWW server". The advanced stuffĪs I mentioned earlier, my goal is to use UV4L streaming server for my own custom web page. v4l2-ctl is an application to control v4l2 drivers. In case your video is upside down like mine is v4l2-ctl -set-ctrl vertical_flip=1 in the command line. What that means is that we're using a hardware h264 encoder of VideoCore IV (RPi's GPU), which allows us to have HD Live stream with low CPU utilization and low bandwidth usage. Lots of stuff to play with, but the most important thing here (IMHO) is that we can force use of hardware codec.
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Navigate to on your PC or smartphone, click the green Call button and a stream should appear.
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In our case an official Raspbian v4l2 driver will be used.Īlright, time to test the stream. The -external-driver option tells UV4L to use different driver for the streaming. The reason is that for my personal project I need clean video stream and UV4L adds a watermark if you're using uv4l-raspicam driver. Those that are familiar with UV4L will probably notice that we're not using the UV4L raspicam driver. You should something like this in your terminal: Uv4l -external-driver -device-name =video0 Now I'll assume that you have your Raspberry Pi camera connected and enabled. I've tested this with Official Raspberry Pi Camera V1.3 on Raspberry Pi 3 B+ and Raspberry Pi 4 running latest Raspbian OS (Raspbian Buster), but it should work on Raspberry Pi 1, 2 or Raspberry Pi Zero and Zero W as well. It is something that I'm planning to cover in the future, but for now check this tutorial here.Īlright so if you're still with me, let's continue. Janus WebRTC Server can be used to make the stream available to more viewers. One thing that I should note in advance is that only one peer will be able to watch the stream at a time. The goal is to set up a U4VL streaming server to serve our own custom web streaming page and we're going to do so in this tutorial.
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You can check UV4L page for a documentation, custom drivers and tutorials on how to install and quickly set up a UV4L Streaming server, but we'll take matters further and talk about more advanced stuff you can do with it. WebRTC extension for the UV4L Streaming Server by Linux Projects There are already few projects that aim to do just that and today we're going to use one of it to accomplish our goals: Our Pi in this scenario becomes a remote peer! They all use WebRTC for their real time communication implementations.Īnd while WebRTC wasn't developed with the Raspberry Pi in mind particularly, we can actually use it for high resolution and low latency audio and video streaming. Facebook's Messenger, Google's Hangouts, Discord.
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It allows audio and video communication to work inside web pages by allowing direct peer-to-peer communication, eliminating the need to install plugins or download native apps. WebRTC is a free, open project that provides browsers and mobile applications with Real-Time Communications (RTC) capabilities via simple APIs. So after doing some research I actually found a solution - WebRTC. Decent web browser support (at least Google's Chrome and Mozilla's Firefox) without any extra plugins (flash etc).