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Comment I rolled my own (Score 3, Interesting) 112

I have a 5 camera system (slowly growing) and I evaluated ZoneMinder and decided that it didn't meet my requirements, so I rolled my own. If you are good at C programming Linux has everything you need to write a simple capture/streaming application. I use USB video capture devices (Pinnacle Dazzle DVD Recorder) because they are cheap (no tuner), have excellent quality, and I have no shortage of USB ports.

Linux natively supports these devices, and the V4L2 APIs make it trivial to reads frames. Using libavcodec from the ffmpeg project you can encode the frames to practically any format imaginable. I encode all 5 cameras to MPEG-4 at 30 fps using minimal CPU power. All of this is possible with only about 500 lines of C code. Of course in my own version I've added a lot of fancy features over time and the project has gotten quite large with support for low-bandwidth streaming, crude motion detection, time-lapse video, etc.

I won't lie to you and tell you that the documentation for ffmpeg is any good. But there are tutorials out there that explain how to use libavcodec and everything else is a piece of cake. Don't overestimate how simple is it to get something basic working.

Hardware Hacking

Submission + - Hacking my UPS

Yossarian writes: "I have a 1300 VA (780 Watt) UPS that I use to power the servers in my house. With all the equipment I have plugged into it, it only lasts about 3 minutes in a power outage, which isn't long enough for me to get my backup generator started to keep things running. I had an idea that I could replace the 8.0 Ah batteries in the unit with a big 80 Ah Marine/RV deep cycle battery. In theory that should buy me closer to 30 minutes of backup time. However I'm wondering if the little 1 amp charger in the UPS will be able to charge such a large battery up to full charge (I realize it would be slow, but that's okay). I'm also wondering if the inverter in the UPS will be able to handle the increased run time. I know that many consumer grade UPSes have weak inverters that can barely handle their rated load, so running it 10 times as long as it was meant to run concerns me. Are there any other things I should be worried about?"

Comment No different from sales tax evasion (Score 4, Insightful) 451

Technically whenever you order a product from another state and the seller doesn't withhold sales tax on the purchase, you're required to pay that sales tax in your state. Nobody does this -- so technically nearly everyone is guilty of this kind of tax evasion. How is this any different?
OS X

Submission + - Why Users Ditch OS X for Windows (osweekly.com) 7

coward writes: "OSWeekly.com says users ditch OS X for Windows. Why? It's too pricey, the article claims. "If one more person points me to a Mini and tells me this is going to replace a 2.00GHz PC with standalone video and a SATA drive, I'm going to scream. Despite Apple providing a superior OS for the casual consumer, it remains a price issue for most people. You take any unsuspecting cash conscious family and if you actually tell me that they are going to be willing to drop $1,099 versus $499 on a notebook for their child, you had better present one serious sales pitch. Even considering the long-term value, malware-free environment, those parents would be presenting their soon to be college aged kid, the fact is they are not informed enough to understand that the $499 notebook is an utter junk, thanks to poor hardware quality."
PC Games (Games)

Submission + - Quakecon 2007 Coverage: Carmack Shows id Tech 5 (hothardware.com)

MojoKid writes: "Top to bottom coverage of Quakecon 2007 has just hit the web. This article includes a multitude of images and information from all of Quakecon's events, including id's keynote address in which John Carmack revealed details of the id tech 5 engine. NVIDIA also held a kick-off event and there were many other OEMs like Dell and MSI that had wares to show. From Case Mod contest winners, to the lovely Frag Dolls, and news about a handful of yet to be released titles including Rage, Left 4 Dead, John Woo's Stranglehold, and Quake Wars: Enemy Territory, there was a lot to see. There was even a bit of information given regarding the upcoming movie based on id's Wolfenstein franchise."

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