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• HTML5 Audio: Which formats? Ditch Ogg Vorbis in favor of Ogg Opus? Is MP3 still needed?

  - by phoibos

  I'm currently working on a website which has to stream audio files. Since bandwidth is always an issue, the file size should be as small as possible. I wonder what audio formats I should provide. MP3 - Most common format but low quality, I don't know if it's even required, since AAC is well supported by the browsers incapable of playing free codecs MP4 AAC - Nice quality / small filesize, supported by Safari / Mobile Devices / IE9 / Flash / Chrome A free codec - well, until recently, there only was Ogg Vorbis, but Ogg Opus is standardized now and it's really good! Questions: Is it time yet to use Opus instead if Vorbis? Firefox supports Opus since version 15, and Opera has support on its roadmap - I guess Chrome will follow in the future too. Do I still have to provide an MP3 file?

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• I'm a beginner Java programmer but I want to be useful

  - by user105418

  Programming has always interested me, but after learning some of the basics of Java(I'm talking high school level), I don't really know what to do from there. I want to be able to apply what I learned in some way, whether it be a volunteer project or something, but I probably don't know enough programming. Is it possible for a novice Java programmer to be useful in some way whatsoever. I want to do this because I feel like I could learn more about programming by helping people in theirs, but I'm not sure if I'm even able to this though. Does anyone have any suggestions on how I can contribute to other people's project in some way or how to apply it in some way?

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• So with HTML5 what exactly.....is "supposed" to become phased out.

  - by Mercfh

  So I know HTML5 is the "replacement" for Flash...however it's obviously not mainstream just yet......but what else is it supposed to replace. I ask this because web-dev has always been a secret kinda side-passion of mine (even though I a firmware programmer mostly doing C/Java stuff). And anyway I want to pursue a side thing at doing web design (I know basic XHTML/CSS + some CSS3) But what exactly is I guess...."pointless" to study? JavaScript I assume will always be a huge part of web design? (HTML5 isn't replacing that is it?) What about Ajax and CSS itself?) And then there's Flash....not sure if thats really worth putting effort into? Also there's Adobe Flex/Air......I'm a bit confused if you can't tell.

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• Newsletter link to share a webpage on facebook - Facebook is not accepting it.

  - by donaldthe

  My question is what link should I use to enable a 1 click share on facebook of a webpage from an external application such as an email? Thanks Here are the details: User submits content to my website. Content is first reviewed by webmaster Webmaster sends out congratulations email, "Your article has been published, here is the link: http://www.mywebsite.com/new-page.html" I would like to include in the congratulations email, "Click on this link to share your article with your friends on facebook" The link I am using is the following: http://www.facebook.com/share.php?u=http://www.mywebsite.com/new-page.html If I paste it into the address bar and I am logged in it works fine and facebook parses the new page for meta data and displays Page title and description. However, when clicking on the link from my newsletter, I am redirected to the login page, even though I am logged in, and after logging in, I am sent to my profile page and the share is not posted.

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• What is the difference between Times and Dup in Assembly Language?

  - by Total Anime Immersion

  In a bootloader, the second last line is : TIMES 510-($-$$) db 0 Now, will this command also do the same : db 510-($-$$) DUP (0) If not why? I know what TIMES does, but its not mentioned in my x86 book by Mazidi (Pearson Publication). Any idea why? And what is the meaning of the $ sign exactly? Different sites have different information about $. And is the line TIMES 510-($-$$) db 0 absolutely necessary even if my bootloader code is of 512 bytes in size? So can anyone help me with these questions?

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• Passing variable from SharePoint to external website

  - by TechDaddyK

  My company has a SharePoint site that is administered by the IT department (versus the Web Developer... go figure!). We have partnered with a vendor that has built a site for our staff to order customized stationery, etc. I need to create a link on the SharePoint site that will take the user to the external site but identify them individually. The vendor is suggesting this format: https://www.VENDORSITE.com/UI/Profile.hcf?id=a02b8106-4115-47cd-bca7-ce4dd447ef89&username=<user name>&password=<password>&name1=<first name>&name2=<last name>&email=<email> Here's the problem: I don't know how to pass that info, or even a single variable, from the SharePoint site to the external site. I would appreciate ANY suggestions.

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• Boots to a totally blank screen after I installed some ATI Radeon card updates

  - by baboonWorksFine

  I am using Ubuntu 10.04 LTS, dual boot with win7 on ThinkPad T400, I followed Ubuntu update hints and installed some update for my ATI Radeon graphic card, but when I boot to Ubuntu(means I can still load GRUB), the tragedy happened, the screen goes to blank and no matter what key stroke, I can not get any responds, I try to go to text terminal, but impossible! However when I hit the power button, the computer would pop out the Ubuntu shutdown screen briefly and shut down. I figure out I should delete the updates package of my graphic card, but I don't even get a chance to go to text terminal, please help me!

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• What's the point of Rabbit MQ? [duplicate]

  - by bad_boy

  This question already has an answer here: When to use Advanced Message Queuing Protocol like RabbitMQ? [closed] 2 answers First of all, let me say, I have no problem following tutorials. The problem is that I don't understand why even Rabbit MQ is ever needed. And there's no such explanation on tutorials - they only show what to do and how to use, but not when its usage is the case. Can you explain this? Why would you want to use Rabbit MQ? To solve what problem?

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• Starting Game Programming in C++, where to begin for optimal cross-platform development?

  - by Qasim

  I wish to begin learning game development in C++. I have knowledge in syntax and the console using Visual C++ 2010, however I want to begin programming. My only problem is that I want to be able to support many platforms including Windows, Mac OS, and Linux. As I get better, I also hope I can submit games to XBLIG (or XBLA) and Steam, and even the Google Play Store (But that would take some porting and major redesign of controls). I have looked into c++ and SDL but I have no idea how to get started. I have Visual C++ 2010 installed and I hope I can still use that as other C++ IDEs are quit outdated. Because I want to stick with Visual C++ and SDL (unless there is a better library than SDL), there is not much room for debate but rather how to create projects to support cross-platform development.

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• Unwittingly activate wrong wireless driver and now cannot activate the correct one

  - by Sumeth Chaochuti

  I just installed Kubuntu 10.10 on my MacBook 3,1 and found no wireless connection. Using KPackageKit I activated Broadcom b43 because it had already been selected for me. When I subsequently tried to activate Broadcom STA, however, I was returned with an error. After reading Jockey log I removed the wrong driver and reinstalled all drivers so that I can activate the correct one. It hasn't work even though KPackageKit now shows that I have installed: bcmwl-kernel-source bcmwl-modaliases broadcom-sta-common broadcom-sta-source According to the log it appears as if there are conflicts but I don't know how to rectify it. I'm completely new to the platform, just started using Kubuntu 2 days ago. I'll appreciate any advice anyone can give. Thanks.

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• Should HTTP Verbs Be Used Semantically?

  - by Xophmeister

  If I'm making a web application which integrates with a server-side backend, would it be considered best practice to use HTTP methods semantically? That is, for example, if I'm fetching data (e.g., to populate a menu, etc.), I would use GET, but to update data (e.g., save a record), I would use POST. (I realise there are other methods that may be even more appropriate, but we need to consider browser support.) I can see the benefits of this in the sense that it's effectively a RESTful API, but at a slightly increased development cost. In my previous projects, I've POST'd everything: Is it worth switching to a RESTful mindset simply for the sake of best practice?

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• How do I implement URL rewriting in my .htaccess file?

  - by Alan

  I'd like to do some URL rewriting (Why? See this question.) so that instead of users seeing addresses like labouseur.com/course-compilers.html they can instead see and use simply labouseur.com/course-compilers (Even better, maybe I should restructure that so that it's courses/compilers.) I'm using a Linux-based shared hosting service for my website, so I do not have administrative control of the server, but I do have control over .htaccess. The references I've read online seemed less than clear to me, so I'm looking for a little clarity and advice here. Thanks!

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• Any recommendations for a domain buying negotiating service? [closed]

  - by Saunt Valerian

  The best domain for my niche and related is owned by a guy in San Fransisco, and I want to buy the domain from him but I don't want to deal with him directly (even though he has contacted me in the past). I need to find an intermediary company that can handle the negotiation for me. I don't expect to have to pay much since the guy has been squatting on it for more than 15 years and according to the Internet Wayback Machine it has never actually been used for anything at all - he has never added any value to it. It kind of irritates me that such a good domain has been sitting in this guy's closet gather dust for 15 years. I know that GoDaddy has a domain buying negotiating service (and the domain is registered through them, which may make it easier), but I really, really do not want to do business with GoDaddy if I don't have too. Do any of you know of other firms that deal with this sort of thing?

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• Why do you have to manually type variable names while debugging?

  - by SoboLAN

  I've seen this in a lot of IDEs (even in the most popular and heavily used ones, like Visual Studio): if you want to watch a variable's value, you have to manually type its name in the Watches section of the debugger. Why can't there just be a list of all of them with checkboxes next to them ? The developer can then just check the box next to the one he wants to watch and that's it. Variables with identical names can probably be numbered in some way (for example a, b, x(1), x(2), c, etc. I've seen some exceptions to this (NetBeans or BlueJ), but there are exceptions to everything, right ? Maybe it's a stupid question, maybe not, but I've always wondered why this is so.

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• JavaOne 2012 demo of Java SE Embedded on Raspberry Pi

  - by hinkmond

  Here's the Inquirer's article about our Java SE Embedded demos at JavaOne 2012 this year. Simon Ritter had a fun presentation showing the cool demo on the Raspberry Pi at his talk. See: Demo Java SE Embedded on Raspberry Pi Here's a quote: Oracle demonstrated Java SE for embedded devices running on the Raspberry Pi bare bones computer at the Java One show on Wednesday, with the aim of encouraging developers to try it out for themselves to create reference libraries for the target school children audience. I had the presentation after Simon and saw the size crowd he had. They were laughing and clapping at the demo and having a good ol' time. Good to see the interest in Java SE Embedded, even if it is for a "toy" device like the Raspberry Pi. Hinkmond

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• How to organize my 1000s of PDF?

  - by mmb

  I have a huge collection of PDF. Mostly it consists of research papers, of self-created documents but also of scanned documents. Right now I drop them all in one folder and give them precise names with tags in the filename. But even that gets impractical, so I am looking for a PDF library management application. I am thinking of something like Yep for Mac, with the following features: PDF cover browsing (with large preview, larger than Nautilus allows) tagging of PDF (data should be readable cross-platform) possibility to share across network (thus rather flat files than database) if possible: cross-platform Mendeley seemed to be a good choice, but I am not only having academic papers and don't want to fill it all metadata that is required there. The only alternative I could find thus far is Shoka, but the features are limited and developments seems to have stopped already.

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• Should iOS games use a Timer?

  - by ????

  No matter what frameworks we use -- Core Graphics, Cocos2D, OpenGL ES -- to write games, should a timer be used (for games that has animation even when a user doesn't do any input, such as after firing a missile and waiting to see if the UFO is hit)? I read that NSTimer might not get fired until after scheduled time (interval), and CADisplayLink can delay and get fired at a later time as well, only that it tells you how late it is so you can move the object more, so it can make the object look like it skipped frame. Must we use a Timer? And if so, what is the best one to use?

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• Ubuntu - Psychonauts - Camera involentarily listing to the right

  - by James

  I've recently purchased the Humble Bundle V and have been having an absolute riot with the games given. The one problem I'm running into though, is that whenever I launch Psychonauts and run a game, the Camera lists to the right slowly and I can't get it to stop. Strangely enough when I zoom in (with z), it lists to the left. I was wondering if anyone else had this problem and if there was a solution. Maybe it's even the mouse configs I currently have on the laptop that interacts strangely with 3D environments.

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• Install ubuntu using GRUB2

  - by FELDAP1

  I have Deepin linux installed and now I need to install ubuntu. I don't have CD ROM , so I thought I can use GRUB2 ISO boot option. I have used the link Install Ubuntu from iso file using grub2 to boot ISO using GRUB2. I need to install the operating system. When I click Install Ubuntu icon in desktop, the installer starts. But I can't see the option where we can specify the partition. It just directly goes to installing. Even if I click install, the installer does nothing and the installation didn't start. What to do? Any ideas?

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• After one has made many grid based puzzles how does one make then into a PDF ready for printing

  - by alan ross

  After one has generated many grid based puzzles like sudoku, kakuro or even plain crosswords and now one has to print them in a book. How does one make a pdf (book file) from them automatically. To explain the question better. One has the puzzle ready in computer format like ..35.6.89 for all nine rows. The dot being the empty cell. How does one convert then to a picture on a PDF page complete with box, automatically without doing them individually and then print a book from the pdf file. As can be seen there are other things also printed on the page all this is done automatically.

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• Distorted choppy audio in Precise

  - by Misery

  After installing Precise on my PC, some problems with soud occure. While using Lucid there were no problems. The sound is choppy and distorted in low tones range. As I absolutely have no experience in setting/testing and doing anything with Audo Devices I need help even to diagnose the problem. update: sudo lshw -c multimedia *-multimedia description: Audio device product: Radeon X1200 Series Audio Controller vendor: Hynix Semiconductor (Hyundai Electronics) physical id: 5.2 bus info: pci@0000:01:05.2 version: 00 width: 64 bits clock: 33MHz capabilities: pm msi bus_master cap_list configuration: driver=snd_hda_intel latency=32 resources: irq:19 memory:fdafc000-fdafffff *-multimedia description: Audio device product: SBx00 Azalia (Intel HDA) vendor: Hynix Semiconductor (Hyundai Electronics) physical id: 14.2 bus info: pci@0000:00:14.2 version: 00 width: 64 bits clock: 33MHz capabilities: pm bus_master cap_list configuration: driver=snd_hda_intel latency=32 resources: irq:16 memory:fe024000-fe027fff update 2: It has something to do with the volume. If the audio is quiet it is not choppy, if the sound is loud then it begins to be choppy. Regards, Misery

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• Rotation, further I go from 0:0, the further the object positions around the origin while rotating

  - by Serguei Fedorov

  For some reason I am having the issue where the following code: global.spriteBatch.Draw(obj.sprite, obj.getPosition(), null, Color.White, obj.rotation, obj.center, 2f, SpriteEffects.None, 1); causes the object to rotate around the origin in such a way, as though there is an offset to the position relative to its location. The calculation for the center it correct and this happens even if I set the pivot to be the location of the object. The further I get from 0:0 the larger the radius or rotation. I am not sure what is going on here because given the following tutorial http://www.riemers.net/eng/Tutorials/XNA/Csharp/Series2D/Rotation.php I have done the code setup correctly. Any ideas? Any help is greatly appreciated!!!

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• XNA: Retrieve texture file name during runtime

  - by townsean

  I'm trying to retrieve the names of the texture files (or their locations) on a mesh. I realize that the texture file name information is not preserved when the model is loaded. I've been doing tons of searching and some experimenting but I've been met with no luck. I've gathered that I need to extended the content pipeline and store the file location in somewhere like ModelMeshPart.Tag. My problem is, even when I'm trying to make my own custom processor, I still can't figure out where the texture file name is. :( Any thoughts? Thanks! UPDATE: Okay, so I found something kind of promising. NodeContent.Identity.SourceFilename, only that returns the location of my .X model. When I go down the node tree he is always null. Then there's the ContentItem.Name property. It seems to have names of my mesh, but not my actual texture file names. :(

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• Better way for calculating project euler's 2nd problem Fibonacci sequence)

  - by firephil

  object Problem_2 extends App { def fibLoop():Long = { var x = 1L var y = 2L var sum = 0L var swap = 0L while(x < 4000000) { if(x % 2 ==0) sum +=x swap = x x = y y = swap + x } sum } def fib:Int = { lazy val fs: Stream[Int] = 0 #:: 1 #:: fs.zip(fs.tail).map(p => p._1 + p._2) fs.view.takeWhile(_ <= 4000000).filter(_ % 2 == 0).sum } val t1 = System.nanoTime() val res = fibLoop val t2 = (System.nanoTime() - t1 )/1000 println(s"The result is: $res time taken $t2 ms ") } Is there a better functional way for calculating the fibonaci sequence and taking the sum of the the even values below 4million ? (projecteuler.net - problem 2) The imperative method is 1000x faster ?

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• Vertex data split into separate buffers or one one structure?

  - by kiba2

  Is it better to have all vertex data in one structure like this: class MyVertex { int x,y,z; int u,v; int normalx, normaly, normalz; } Or to have each component (location, normal, texture coordinates) in separate arrays/buffers? To me it always seemed logical to keep the data grouped together in one structure because they'd always be the same for each instance of a shared vertex and that seems to be true for things like character models (ex: the normal should be an average of adjacent normals for smooth lighting). One instance where this doesn't seem to work is other kinds of meshes like say a cube where the texture coordinates for each may be the same but that causes them to be different where the vertices are shared. Does everybody normally keep them separate? Won't this make them less space efficient if there needs to be an instance of texture coordinates and normals for each triangle vertex (They won't be indexed)? Can OpenGL even handle this mixing of indexed (for location) vs non-indexed buffers in the same VBO?

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