LibreElec – Pi Camera Mjpeg Streaming

Following the setup of a Cent OS CCTV server, I’ve been using Raspberry Pi’s as video sources. But what if there was a Raspberry Pi in perfect situ for a CCTV camera, but was already in use as a media player?

A Linux system has always had the impression that it is versatile, so this should be an achievable task. A barrier would be how to get this done with the operating system installed, in this case it is LibreElec, an OS with the tagline “Just enough OS for Kodi”. Therefore, it would be more of a challenge than a usual Debian install.

The team at LibreElec saw this type of thing coming, and included the Docker service as a Kodi addon to allow the curious tinkerer to add more than Kodi to a Pi.

If you have the LibreElec based Pi in the opportune placement to add a camera, here is how to add Mjpeg streaming capabilities…

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Motioneye – Cent OS CCTV Server

If you’d ever searched for Raspberry Pi projects that involved a camera then the results would certainly include Motioneye OS, an easy to use self-contained operating system that is truly (write then) plug and play.

Looking for a CCTV project earlier this year I too was drawn in by this, and with my small abundance of RPi spares it was the cheapest choice, using a couple of RPi 3B+ for video, and a Zero W for time-lapse image capture. All processing was self-contained on each Pi with capture data passed over via SMB to a Windows file share.

This worked, but had a couple of problems that prevented it from being trustworthy. Firstly, it stops recording video after a few days of uptime, by creating empty files. And secondly the time-lapse camera seemed to reset every few minutes that created in white out image capture as the camera’s exposure setting recalibrated, ruining a time-lapse video.

Looking wider there was also the performance issue. In Motioneye OS’ default state of managing all features, the highest FPS seemed to max at 15 fps even on the Pi 3B+. Forums suggest this is due to the motion eye daemon handling all the image processing in software, putting a strain on the Pi’s modest CPU.

The idea and goal is to move the processing and IO responsibilities to my server, which would be far more capable than the then latest available RPi, and as I have chosen Cent OS to be my go-to Linux OS of choice, this is what I’ll be using.

A gateway to make this possible is an option in Motioneye OS, Fast Network Camera. This when set relinquishes the Pi of all processing duties and serves to just stream the camera capture as best as possible via MJPEG.

Here’s how to set up Motioneye on a Cent OS server to be a central data hub for a network of RPi Motioneye OS cameras.

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Taking Things for Granted – The RDP Attack.

Before we start, a story. When I created my first web server, I’d found a copy of Windows NT Server 4.0, upgraded it to Service Pack 6a to get IIS enabled, opened port 80 on the router and viola, working webserver. This was 2001 and unfortunately my creation of a webserver coincided with the spread of the Code Red virus, and it reached my server within days of it being online.

Not knowing at the time, and thinking it was a one off, formatted the hard drive and completed the whole setup again. A day passed before the virus was back. Now with the knowledge of what was happening and wary of it happening again. I rebuilt the server and this time put the website behind port 8080, this time the virus never returned.

I thought to myself that this was security through obscurity, and with the victory over Code Red, was something I held onto for many years.

I applied this method when it came to opening RDP access to the outside world, choosing a seemingly obscure port 8021 on each network setup. However, I’ve been dealt a wakeup call following what I’ve just seen…

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Netgear – Wireless Power To It’s Full

Living in a block of flats is a nightmare when it comes to getting reliable wireless network coverage, especially when only having 2.4Ghz Wi-Fi as it is a heavily congested frequency. Over the last few months I’ve found the connection constantly dropping on my wireless devices, even within a few feet of the access point.

I use a Netgear FVS318N for my wireless connections and a frustration is that the region is locked to Europe, where the radio power is limited more than other parts of the world.

This means the highest achievable power is half, raising it to full results in this dead end:

Very annoying, this post shows how to get a region locked Netgear use all the power available, and to discover what devices in the area are competing for the wireless space.

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