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  • Can't start webcam for google video services

    - by wisemonkey
    I've got Ubuntu 11.10 64 bit and have installed the google video chat plugin. However webcam doesn't seem to work (black screen -- no video at all). For cheese it works but shows really bad (black and white kinda) image. Following some link I installed guvcview if I start it then image looks neat. Any suggestions on how can it be fixed? If it helps I've tried the solution: $ sudo mv /opt/google/talkplugin/GoogleTalkPlugin /opt/google/talkplugin/GoogleTalkPlugin.old $ sudo gedit /opt/google/talkplugin/GoogleTalkPlugin and putting following lines in: #!/bin/sh LD_PRELOAD=/usr/lib32/libv4l/v4l1compat.so /opt/google/talkplugin/GoogleTalkPlugin.old OR #!/bin/sh LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libv4l/v4l1compat.so /opt/google/talkplugin/GoogleTalkPlugin.old Cause I've both files. Finally $sudo chmod +x /opt/google/talkplugin/GoogleTalkPlugin.old I closed and reopened chrome then started gmail tried video call -- black screen :-/ Ok so today finally google+ provided me with trouble shoot link and advised me: The plug-in won't install If you're having trouble installing the plug-in, or are receiving a message asking you to reinstall it, you should check to make sure your configuration is right. To do so simply: Check to make sure the Google Talk Plugin Video Accelerator and Google Talk NPAPI Plugin are enabled. If you're using Chrome you can type about:plugins in your browser to display your plug-ins. Make sure you're not using Internet Explorer 64-bit (this is a browser version that is 64 bit as opposed to 32 bit). Ensure that you don't have any "click to run" extensions enabled. If you're still experiencing this issue after checking your configuration you can follow these steps: Refresh the browser page. Close any running Google Talk plug-in processes. Close all open and running browser processes. Restart your computer. Uninstall and then reinstall the plug-in. Try a different browser such as Google Chrome or Mozilla Firefox. I looked in about:plugins for chrome and firefox: I don't have Google Talk NPAPI Plugin, does that matter? and I thought its installed with google talk plugin or no?

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  • Quadcopters Play Catch [Video]

    - by Jason Fitzpatrick
    Working like a group of hive-minded bees, these quadcopters come off as almost playful with their ball throwing antics. Courtesy of the folks at the Swiss Federal Institute of Technology in Zurich’s Institute for Dynamic Systems and Control, we’re treated to a video of three quadcopters playing catch in the research facility’s Flying Machine Area. They explain the processes demonstrated in the video: This video shows three quadrocopters cooperatively tossing and catching a ball with the aid of an elastic net. To toss the ball, the quadrocopters accelerate rapidly outward to stretch the net tight between them and launch the ball up. Notice in the video that the quadrocopters are then pulled forcefully inward by the tension in the elastic net, and must rapidly stabilize in order to avoid a collision. Once recovered, the quadrotors cooperatively position the net below the ball in order to catch it. Because they are coupled to each other by the net, the quadrocopters experience complex forces that push the vehicles to the limits of their dynamic capabilities. To exploit the full potential of the vehicles under these circumstances requires several novel algorithms, including: HTG Explains: How Antivirus Software Works HTG Explains: Why Deleted Files Can Be Recovered and How You Can Prevent It HTG Explains: What Are the Sys Rq, Scroll Lock, and Pause/Break Keys on My Keyboard?

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  • Process video (canon) mov files

    - by user613326
    Well i would like to program something to process HDR made by magic lantern a canon add on. That doesnt change the format its just some kind of add on, that can produce HDR video. Its a bit complex to make such videos so i would like to use some math and make it myself and makee the software freeware (as a thanks to the creators of magic lantern). The problem with that HDR that normal converts have a lot of artifacts, and i would like to make something (for free) using some new algorithms. I have made, this works fine on individual images, my ideas work. I would want to do this on that canon 60d video format. Canons mov format, and am so far out of luck to read that out. It must be possible dough as i know in some projects they do it too. I would not like to export a movie first to jpg and then back to video as that requires a lot of disk space, i would like to retrieve individual frames, do my math based multiple frames, and then build a new movie on it. The output video can be of any type, avi or mov again. Does anyone know of a library who can do that ? (read and save), So i could use it in a C# project (i prefer C# above c++, but c++ is an option to program in to for me).

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  • E3 Booth Babes Display a Painful Lack of Video Game Knowledge [Video]

    - by Jason Fitzpatrick
    If you thought a prerequisite for manning a booth at an electronics expo was a passing knowledge of the electronics and games you were promoting, you were wrong. In the above video Chloe Dykstra puts a set of “booth babes” from the E3 2011 conference to the test by asking them simple questions about video games both new and old. If you’re a gaming fan and you can watch this video without laughing out loud you’ve got an iron will (or you’re shaking your head in disbelief that someone could work a gaming convention and not know the answers to these questions). We won’t lie, we were shaking our head when the one model admitted that she’d worked at GameStop for a year and still didn’t know any of the answers. What questions would you put on list? How about “Finish this sentence: ‘Your Princess is in another…’”, “Dimension?”. 5HP: Booth Babe Edition – E3 2011 [YouTube via Kotaku] How To Encrypt Your Cloud-Based Drive with BoxcryptorHTG Explains: Photography with Film-Based CamerasHow to Clean Your Dirty Smartphone (Without Breaking Something)

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  • The Evolution of Search: A History of Google Search [Video]

    - by Jason Fitzpatrick
    Internet search has changed enormously in the last decade; this video tour of Google evolving search strategies shows us where we’ve been and where we’re going. In the above video Google staff reflect on the last decade of search, innovations at Google, and where they’re taking the search engine experience in the future. While the video clearly has a Google bias (they produced it after all) it’s still an interesting look at how Google and internet search as a whole have changed over the years. The Evolution of Search in Six Minutes [The Official Google Blog] How to See What Web Sites Your Computer is Secretly Connecting To HTG Explains: When Do You Need to Update Your Drivers? How to Make the Kindle Fire Silk Browser *Actually* Fast!

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  • SQL SERVER – Video – Performance Improvement in Columnstore Index

    - by pinaldave
    I earlier wrote an article about SQL SERVER – Fundamentals of Columnstore Index and it got very well accepted in community. However, one of the suggestion I keep on receiving for that article is that many of the reader wanted to see columnstore index in the action but they were not able to do that. Some of the readers did not install SQL Server 2012 or some did not have good machine to recreate the big table involved in the demo. For the same reason, I have created small video for that. I have written two more article on columstore index. Please read them as followup to the video: SQL SERVER – How to Ignore Columnstore Index Usage in Query SQL SERVER – Updating Data in A Columnstore Index Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Index, SQL Performance, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, T SQL, Technology, Video

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  • Video Encoding library for C++ game

    - by Paulo Pinto
    I'm looking for a video encoding library in C++ that I can use to record game footage. It can not be an external application like Fraps, it must be a library. Ideally the encoding can be done in real time without affecting game performance too much, although this is not a must have requirement. Another preference is that the video file being saved from the game is already compressed and ready to be used by most video players without any further processing. I realize that this might not be possible especially for real time encoding, so I would accept a trade off of having to process the file later for better compression and/or better file format. I'd like to hear about your experience integrating the library into a game if possible and any interesting trade offs you had to make. Some libraries support more that one file format or codec, so advice on the file format would also be appreciated.

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  • Searching for Ubuntu video I saw that covered Ubuntu One

    - by Elijah Lynn
    I have been searching for an Ubuntu video I saw 1-2 months ago where they guy was demonstrating Ubuntu One and how he used it to sync local profile stuff across different machines. Has anyone seen this? I forgot exactly what it was about but I know he spent a minute or two on the video if not the whole video. I searched all my web history as well as youtube history but no go. Not sure if we are allowed to ask these questions but here goes.

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  • How to Make a Laser Microscope at Home [Video]

    - by Asian Angel
    Earlier this year we shared a video that showed you how to make a microscope projector using a green laser light and a webcam lens. Today we are back with a video demonstrating an easy “at home” method using that same green laser light, a syringe, two glasses, and a blank wall. Note: Video contains some language that may be considered inappropriate. How to make a laser microscope [via Geeks are Sexy] Use Amazon’s Barcode Scanner to Easily Buy Anything from Your Phone How To Migrate Windows 7 to a Solid State Drive Follow How-To Geek on Google+

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  • Game of Thrones Style Sigils for Video Games

    - by Jason Fitzpatrick
    What would the video game families of the Mushroom Kingdom, Hyrule, and more look like if they were represented by Game of Thrones style sigils? Dorkly shows us the House of Mario, Link, and more. Hit up the link below to check out the imagined sigils for a variety of video games families–if you’re in the mood for wallpapers based on the actual Game of Thrones families, makes sure to check out the Extras section for the show on HBO.com. Game of Thrones House Sigils for Video Game Families [via Neatorama] 8 Deadly Commands You Should Never Run on Linux 14 Special Google Searches That Show Instant Answers How To Create a Customized Windows 7 Installation Disc With Integrated Updates

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  • Inside the IBM Selectric [Video]

    - by Jason Fitzpatrick
    The IBM Selectric was one of the best selling typewriters of the 1960s and 70s and featured a rather unique digital-binary to analog system that controlled a typeball instead of a row of type bars. Check out this video to look inside. Courtesy of Bill Hammack of Engineer Guy Video, we’re treated to a peek inside the popular typewriter model and an upclose look at how the unique typeball rotates and tilts to precisely deliver each letter. IBM Selectric Typewriter & Its Digital to Analogue Converter [Engineer Guy Video] How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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  • can't see myself in Skype video call

    - by seb
    I'm running 12.04 and I've installed skype via the software centre. As with 11.10 everything works fine with 12.04 as well. There is only one thing that does not work. I can't see myself in Skype video calls. The video call works fine, I can see the other side the other side can see me. Buid in microphone works. If I click on 'show myself' during the video call nothing happens. I know that it works on Ubuntu in general as I had it working a while back on a different machine (Xubuntu 11.04). Could that be related to the GPU? I'm now on a intel/nvidia one. Any Ideas where I can hunt for some options or tweaking?

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  • The Chemistry of Fireworks [Video]

    - by Jason Fitzpatrick
    Fireworks are the dazzling and loud end result of complex chemical process. Watch this video to see the chemistry behind a fireworks display explained by none other than the father of modern pyrotechnics, John Conkling. Courtesy of Bytesize Science: From the sizzle of the fuse to the boom and burst of colors, this video brings you all of the exciting sights and sounds of Fourth of July fireworks, plus a little chemical knowhow. The video features John A. Conkling, Ph.D., who literally wrote the book on fireworks — he is the author of The Chemistry of Pyrotechnics, Basic Principles and Theory. Conkling shows how the familiar rockets and other neat products that light up the night sky all represent chemistry in action. [via Geeks Are Sexy] How to Use an Xbox 360 Controller On Your Windows PC Download the Official How-To Geek Trivia App for Windows 8 How to Banish Duplicate Photos with VisiPic

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  • How To Fold & Pack Suit Coat To Avoid Wrinkles [Video]

    - by Gopinath
    When it comes to providing tips and tricks that makes our daily life so easy, Lifehacker is the best site. Today they posted a video that let you  to easily fold and pack suit coat/jacket without worrying about wrinkles or carrying a separate garment bag just for your suit/jacket. May be by practising couple of times, we will be pack our suit coat wrinkle free. Check this video. via lifehacker This article titled,How To Fold & Pack Suit Coat To Avoid Wrinkles [Video], was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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  • 8 Bit Beats – Video Game Themes Remixed

    - by Jason Fitzpatrick
    What do you get when you cross classic video game themes with a club beat? These Subwoofer-maxing remixes take Link and Mario to the dance floor. Courtesy of NickplosionFX, the above video remixes The Legend of Zelda and Pac-Man with a healthy dose of back beat. Other offerings from 8 Bit Beats include a Super Mario Bros. 3 remix. Have a source for other great video game remixes? Sound off in the comments. 8 Bit Beats – Zelda/Pac-Man [YouTube] What To Do If You Get a Virus on Your Computer Why Enabling “Do Not Track” Doesn’t Stop You From Being Tracked HTG Explains: What is the Windows Page File and Should You Disable It?

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  • Record and display Kinect audio and video via avconv

    - by ThomasH
    I'm trying to record audio and video from a Kinect using avconv but I seem to have trouble specifying the right options. avconv -f video4linux2 -video_size 640x480 -c:v h264 -c:a ac3 -i /dev/video1 test.mp4 results in: avconv: /build/buildd/libav-extra-0.8.3ubuntu0.12.04.1/libav/libavutil/mathematics.c:79: av_rescale_rnd: Assertion `c > 0' failed. Aborted (core dumped) Cheese is perfectly happy recording the audio and video from the Kinect, so it's not a setup issue. For added fun, I also need to display the video at the same time.

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  • Good Compression for Slow-mo Video

    - by marienbad
    What's the best way to deliver super slow-motion video to the browser? This seems to me to be a special case, because with super slow-mo video (such as 10,000 frames per second) the visual difference from frame to frame is minimal. As such, it's easy to compress highly. Please suggest codecs, as well as encoding software, backend software, software configuration tips, and services like youtube. My goal is to get about 100 frames of QVGA video to the browser in 500KB. By the way, remember that Radiohead In Rainbows site?

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  • Ubuntu 11.0 HDMI Video Card No 5.1 Audio

    - by ryandlf
    I am using Ubuntu and XMBC on my HTPC and have chosen the Radeon HD5570 Video card which has an HDMI output. In the sound preferences there is no surround sound option for the video card just stereo and although I can get sound through it in XBMC, my receiver does not state Dolby Digital on movies that are in fact Dolby so its definitely not giving me the true sound it should. Does this card not support surround sound through HDMI and I somehow missed it? If that is the case does anyone have suggestion that has been tested and works? Id like to know its going to work before investing in yet another video card.

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  • exchange live feed with pre-recorded video for wireless internet camera to router

    - by nate
    I wasn't sure if this should be asked in Web Applications, or Network Engineering, or what... Long story short, I have a video camera with mic that is wirelessly connected to a router (NETGEAR R6200), which can then be viewed through an online service. I would like to be able to somehow exchange the live feed with a pre-recorded video, or image, preferably with pre-recorded sound (the sound of silence would be easiest). Can I place this inbetween the camera and the router, do I need to redirect the camera feed to my laptop first, and then push out the fake video/audio onto the router, without the service knowing the difference? Thanks much and I hope this is well understood!

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  • CPU spikes to 100% when trying to watch video

    - by mark
    I just installed Ubuntu 12.04 and now CPU spikes to 100% when trying to watch a video. I don't want to hear that this is a problem with Flash or whatever... Playing video on my machine with Ubuntu 11 was just fine. In fact I have another machine still with Ubuntu 11 and it continues to play video just fine. Now I'm stuck with this 12.04 version and want to know how to downgrade back to version 11 as that version isn't buggy. (hence a downgrade).

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  • Making video from 3D gaphics in OpenGL

    - by MVTC
    What are some of the preferred methods or libraries for creating video from an OpenGL graphics simulation? For example, I want to create a visualization(video) of an N-Body gravity simulation by rendering non-real-time OpenGL frames. The simulation is already coded, I just don't know how to convert it to video. EDIT: I am also interested in providing the described functionality: The user can adjust parameters including the time step between captured frames and then initiate the simulation. The user waits for the simulation to complete, and then can watch the results. The user is able to increase or decrease the playback speed of the simulation whereas in slow motion, more frames are used i.e., you see higher resolution time steps, and when the speed is increased, you see lower resolution time steps at a higher rate, but the frames per second flashing on the screen is constant.

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  • Getting WAP embedded video in android AND iphone?

    - by Jon
    Recently a client asked me to make their site "work on smart phones", which normally wouldn't be too much of an issue... However it's a video site, and I have absolutely no idea where to even begin. Right off the bat I'm not even going to consider allowing the site to even function in anything other than Android (Maybe even 2.0+) and iPhone, maybe Blackberry and WinMo. But beyond that... What do I do? I'm looking at using the tag, however I'm unsure what, if any, codecs which phone uses. Is HTML5 even adopted in their browsers yet? Could someone please point me in the right direction? Am I going about this the right way, using the tag? Or is there some magical html element both iPhone and Android (And BB and WMo) that lets them run video in their native video players (Like on youtube).

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