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• How to fix a gstreamer error

  - by BJsgoodlife

  I upgraded to 14.04 and now gstreamer is not working. What I am trying to accomplish is to hear the audio input on my computer coming from a ham radio. This is the command that I am using: gst-launch pulserc ! pulseink. This is the error message that I am receiving: ERROR: pipeline could not be constructed: no element "pulserc". I am wondering if I should purge gstreamer, or if there is another command that I should put it. Thank you again everyone for all of your help.

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• Know a little of a lot or a lot of a little? [closed]

  - by Jeff V

  Possible Duplicate: Is it better to specialize in a single field I like, or expand into other fields to broaden my horizons? My buddy and I who have been programming for 13 years or so were talking this morning and a question that came up was is it better to know a little of a lot (i.e. web, desktop, VB.Net, C#, jQuery, PHP, Java etc.) or is it better to know a lot of a little (meaning expert in something). The context of this question is what makes someone a senior programmer? Is it someone that has been around the block a few times and has been in many different situations or one that is locked in to a specific technology that is super knowledgeable in that one technology? I see pro's and con's of both scenarios.. Just wondering what others thought.

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• How to break out of if statement

  - by TheBroodian

  I'm not sure if the title is exactly an accurate representation of what I'm actually trying to ask, but that was the best I could think of. I am experiencing an issue with my character class. I have developed a system so that he can perform chain attacks, and something that was important to me was that 1)button presses during the process of an attack wouldn't interrupt the character, and 2) at the same time, button presses should be stored so that the player can smoothly queue up chain attacks in the middle of one so that gameplay doesn't feel rigid or unresponsive. This all begins when the player presses the punch button. Upon pressing the punch button, the game checks the state of the dpad at the moment of the button press, and then translates the resulting combined buttons into an int which I use as an enumerator relating to a punch method for the character. The enumerator is placed into a List so that the next time the character's Update() method is called, it will execute the next punch in the list. It only executes the next punch if my character is flagged with acceptInput as true. All attacks flag acceptInput as false, to prevent the interruption of attacks, and then at the end of an attack, acceptInput is set back to true. While accepting input, all other actions are polled for, i.e. jumping, running, etc. In runtime, if I attack, and then queue up another attack behind it (by pressing forward+punch) I can see the second attack visibly execute, which should flag acceptInput as false, yet it gets interrupted and my character will stop punching and start running if I am still holding down the dpad. Included is some code for context. This is the input region for my character. //Placed this outside the if (acceptInput) tree because I want it //to be taken into account whether we are accepting input or not. //This will queue up attacks, which will only be executed if we are accepting input. //This creates a desired effect that helps control the character in a // smoother fashion for the player. if (Input.justPressed(buttonManager.Punch)) { int dpadPressed = Input.DpadState(0); if (attackBuffer.Count() < 1) { attackBuffer.Add(CheckPunch(dpadPressed)); } else { attackBuffer.Clear(); attackBuffer.Add(CheckPunch(dpadPressed)); } } if (acceptInput) { if (attackBuffer.Count() > 0) { ExecutePunch(attackBuffer[0]); attackBuffer.RemoveAt(0); } //If D-Pad left is being held down. if (Input.DpadDirectionHeld(0, buttonManager.Left)) { flipped = false; if (onGround) { newAnimation = "run"; } velocity = new Vector2(velocity.X - acceleration, velocity.Y); if (walking == true && velocity.X <= -walkSpeed) { velocity.X = -walkSpeed; } else if (walking == false && velocity.X <= -maxSpeed) { velocity.X = -maxSpeed; } } //If D-Pad right is being held down. if (Input.DpadDirectionHeld(0, buttonManager.Right)) { flipped = true; if (onGround) { newAnimation = "run"; } velocity = new Vector2(velocity.X + acceleration, velocity.Y); if (walking == true && velocity.X >= walkSpeed) { velocity.X = walkSpeed; } else if (walking == false && velocity.X >= maxSpeed) { velocity.X = maxSpeed; } } //If jump/accept button is pressed. if (Input.justPressed(buttonManager.JumpAccept)) { if (onGround) { Jump(); } } //If toggle element next button is pressed. if (Input.justPressed(buttonManager.ToggleElementNext)) { if (elements.Count != 0) { elementInUse++; if (elementInUse >= elements.Count) { elementInUse = 0; } } } //If toggle element last button is pressed. if (Input.justPressed(buttonManager.ToggleElementLast)) { if (elements.Count != 0) { elementInUse--; if (elementInUse < 0) { elementInUse = Convert.ToSByte(elements.Count() - 1); } } } //If character is in the process of jumping. if (jumping == true) { if (Input.heldDown(buttonManager.JumpAccept)) { velocity.Y -= fallSpeed.Y; maxJumpTime -= elapsed; } if (Input.justReleased(buttonManager.JumpAccept) || maxJumpTime <= 0) { jumping = false; maxJumpTime = 0; } } //Won't execute abilities if input isn't being accepted. foreach (PlayerAbility ability in playerAbilities) { if (buffer.Matches(ability)) { if (onGround) { ability.Activate(); } if (!onGround && ability.UsableInAir) { ability.Activate(); } else if (!onGround && !ability.UsableInAir) { buffer.Clear(); } } } } When the attackBuffer calls ExecutePunch(int) method, ExecutePunch() will call one of the following methods: private void NeutralPunch1() //0 { acceptInput = false; busy = true; newAnimation = "punch1"; numberOfAttacks++; timeSinceLastAttack = 0; } private void ForwardPunch2(bool toLeft) //true == 7, false == 4 { forwardPunch2Timer = 0f; acceptInput = false; busy = true; newAnimation = "punch2begin"; numberOfAttacks++; timeSinceLastAttack = 0; if (toLeft) { velocity.X -= 800; } if (!toLeft) { velocity.X += 800; } } I assume the attack is being interrupted due to the fact that ExecutePunch() is in the same if statement as running, but I haven't been able to find a suitable way to stop this happening. Thank you ahead of time for reading this, I apologize for it having become so long winded.

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• Multithreading for a mixed-genre game in Python?

  - by arrogantc

  So here's the situation. I'm making a game that mixes two genres; arcade shooter and puzzler. They don't intertwine TOO much; all the interaction that really goes on is that every time an enemy is destroyed, a block is created. The blocks aren't even a part of the main collision detection system; they have their own more suited to their needs. What I want to ask is this; might it be a good idea to have the arcade shooter portion run on one thread, and the puzzle game portion run on another?

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• Show line breaks in asp:label inside gridview

  - by Vipin

  To show line breaks in asp:label element or for that matter inside Gridview, do the following  in case of Mandatory/ Nullable fields. <ItemTemplate>          <%# ((string)Eval("Details")).Replace("\n", "<br/>") %>  </ItemTemplate>    <ItemTemplate>          <%# FormatString(Eval("Details"))  %>  </ItemTemplate>   In code behind, add the following FormatString function - protected string FormatString(string strHelpMessage) { string rtnString = string.Empty; if (!string.IsNullOrEmpty(strHelpMessage)) rtnString = strHelpMessage.Replace(Environment.NewLine, "<br/>"); return rtnString; }

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• Right tool for the job(html5 vs silverlight)

  - by Jargo

  I have been tasked to develop a web based offer request application for bathrooms and I am asking opinions on which tool should I choose. I have narrowed options down to two (html5 and silverlight). Most of the application consists of basic UI elements that could be achieved with html4. However most challenging part is the design view for the bathroom. User first defines size of the bathroom by giving dimensions. When the dimensions are defined the application renders an empty bathroom floorplan and user can start dragging&dropping furniture on to it. Some furniture have rules where they can be dragged. For example sinks can only be dragged next to a wall. I know that this functionality can be achieved with silverlight but what about html5 ? I know that Canvas element can be used to draw graphics, but can it render the bathroom smoothly as user drags a piece furniture on it?

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• What alternatives exist of how an agent can follow the path calculated by a path-finding algorithm?

  - by momboco

  What alternatives exist of how an agent can follow the path calculated by a path-finding algorithm? I've seen that the most easy form is go to one point and when the agent has reached this point, discard it and go to the next point. I think that this approach has problems when the game has physics with dynamic objects that can block the travel between point A and point B, then the agent is taken from his original trayectory and sometimes go to the last destiny point is not the most natural behavior. In the literature always I have read that the path is only a suggestion of where the agent has to go, but I don't know how this suggested path must be followed. Thanks.

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• Why the overhead when allocating objects/arrays in Java?

  - by Gnijuohz

  How many bytes an array occupies in Java? Assume It's a 64bit machine and also assume there are N elements in an array, so all these elements would take up 2*N, 4*N or 8*N bytes for different types of array. And a lecture in Coursera says that it would occupy 2*N+24, 4*N+24 or 8*N+24 bytes for a N element array and the 24 bytes is called overhead, but didn't explain why the overhead is needed. Also objects have overheads, which is 16 bytes. What exactly are these overheads? What are these 24/16 bytes composed of? Also, do these overheads only exist in Java? How about C, C++ and Python?

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• Solving a probabilistic problem

  - by ????????????

  So I am interested in Computational Investing and came across this problem on a wiki page: Write a program to discover the answer to this puzzle:"Let's say men and women are paid equally (from the same uniform distribution). If women date randomly and marry the first man with a higher salary, what fraction of the population will get married?" I don't have much knowledge in probability theory, so I'm not really sure how to implement this in code. My thinking: Populate two arrays(female,male) with random salary values from a uniform distribution. Randomly pair one female and one male array element and see if condition of higher salary is met. If it is, increment a counter. Divide counter by population and get percentage. Is this the correct logic? Do woman continually date until there is no males left with higher salaries than women?

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• HTML5 valid Google+ Button - Bad value publisher for attribute rel

  - by mrtsherman

  I recently migrated my website from xhtml transitional to html5. Specifically so that I could make use of valid block level anchor tags. <a><div /></a>. When running validation I encountered the following error: Bad value publisher for attribute rel on element link: Keyword publisher is not registered. But according to this page, that is exactly what I am supposed to do. https://developers.google.com/+/plugins/badge/#connect My code: <link href="https://plus.google.com/xxxxxxxxxxxxxxxx" rel="publisher" /> <a href="https://plus.google.com/xxxxxxxxxxxxxxx?prsrc=3" style="text-decoration:none;"> <img src="https://ssl.gstatic.com/images/icons/gplus-16.png" alt="" style="border:0;width:16px;height:16px;"/> </a> I can't figure out how to implement this in an html5 compliant way. Can anyone help?

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• Is there a class or id that will cause an ad to be blocked by most major adblockers?

  - by Moak

  Is there a general class or ID for a html element that a high majority of popular adblockers will block on a website it has no information for. My intention is to have my advertisement blocked, avoiding automatic blocking is easy enough... I was thinking of maybe lending some ids or classes from big advertisment companies that area already being fought off quite actively. right now my html <ul id=partners> <li class=advertisment><a href=# class=sponsor><img class=banner></a></li> </ul> Will this work or is there a more solid approach?

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• How to mount read-only filesystem as read-write?

  - by Eric

  this is my problem. I have a USB drive which somehow was set as read-only. I want to set it as read write then format it. sudo chown -R eric /dev/sdb Seems to go through, but when I view the drive in Nautilius it says Error mounting: mount: block device /dev/sdb1 is write-protected, mounting read-only mount: wrong fs type, bad option, bad superblock on /dev/sdb1, missing codepage or helper program, or other error In some cases useful inf.o is found in syslog - try dmesg | tail or so. Thanks in advance!

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• Why does the instruction "do" require a "while"?

  - by 909 Niklas

  Since this statement is so common: while (true) (Java) or while (1) (C) or sometimes for (;;) Why is there not a single instruction for this? I could think that an instruction that could do it is just do but do requires a while at the end of the block but it would be more logical to write an infinite loop like this do { //loop forever } Why not? AFAIK the instruction do always requires a while at the end but if we could use it like above then it would be a clear way to define something like while (true) which I think should not be written like that (or for (;;)).

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• Make Interactive Story more Variable [on hold]

  - by Guest0343

  I'm creating an interactive story that allows users to make choices based on a story. However, it doesn't give users room to do much creatively on their own. They are bound by the script at the moment. I'm wondering if anyone can suggest any element I can add that might give users some personalization. I was thinking about maybe character editing, but that doesn't add too much. I also thought about a stats system where they can have certain attributes and stats they might earn, but I'm not sure how they might use those stats. Anything is helpful!

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• This Is a Completely Accurate Illustration of Me at My Last Job [Comic]

  - by The Geek

  Work is boring, what can I say? Usually I was up way too late every night, making the whole situation much worse. It got so bad that one of my co-workers took pictures for blackmail. =) Latest Features How-To Geek ETC How To Colorize Black and White Vintage Photographs in Photoshop How To Get SSH Command-Line Access to Windows 7 Using Cygwin The How-To Geek Video Guide to Using Windows 7 Speech Recognition How To Create Your Own Custom ASCII Art from Any Image How To Process Camera Raw Without Paying for Adobe Photoshop How Do You Block Annoying Text Message (SMS) Spam? Change Your MAC Address to Avoid Free Internet Restrictions Battlestar Galactica – Caprica Map of the 12 Colonies (Wallpaper Also Available) View Enlarged Versions of Thumbnail Images with Thumbnail Zoom for Firefox IntoNow Identifies Any TV Show by Sound Walk Score Calculates a Neighborhood’s Pedestrian Friendliness Factor Fantasy World at Twilight Wallpaper

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• Why does java.util.ArrayList allow to add null?

  - by Alfredo O

  I wonder why java.util.ArrayList allows to add null. Is there any case where I would want to add null to an ArrayList? I am asking this question because in a project we had a bug where some code was adding nulls to the List and it was hard to spot where the bug was. Obviously a NullPointerException was thrown but not until another code tried to access the element. The problem was how to locate the code that added the null object. It would have been easier if the ArrayList throwed an exception in the code where the elements was being added.

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• Mounting ntfs windows drive and retrieving its data

  - by Sarmad

  Hej, A friend gave me his laptop which had problems with booting (windows). He claims his data on the drive to be retrieved and saved. I have Linux Ubuntu Server to mount its hard drive and check the contents. Now when I have mounted it I see only boot.sdi, sources, System Volume Information I have no idea why is it so? How can I access and retrieve the contents? results of sudo fdisk -l are as follows: Enhet Start Början Slut Block Id System /dev/sdb1 2048 3074047 1536000 27 Hidden NTFS WinRE /dev/sdb2 * 3074048 246945791 121935872 7 HPFS/NTFS/exFAT /dev/sdb3 246945792 416354295 84704252 7 HPFS/NTFS/exFAT /dev/sdb4 416354304 488394751 36020224 f W95 Utökad (LBA) /dev/sdb5 416356352 488394751 36019200 7 HPFS/NTFS/exFAT Please help me in this regard.

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• Lenovo e530 no wireless Ubuntu 13.04

  - by Sam

  For some reason my wireless will not work on my Lenovo e530. I am dual booting ubuntu and windows 8 and my wireless works in windows. I saw online that I should run rfkill. I did that but only bluetooth shows up. There is no difference when I press the wireless fn key either, but it does block bluetooth (as it should). I'm really wanting to get into Ubuntu but this is holding me back. To clarify the wireless device does not show at all after running rfkill.

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• Simpler Times

  - by Simon Moon

  Does anyone else out there long for the simpler days where you needed to move a jumper in the jumper block to set your modem card to use IRQ7 so it would not conflict with the interrupts used by other boards in your PC and your modem card came with a 78 page manual telling you everything you would need to know to write your own driver for the board including a full schematic along with the board layout showing every chip, capacitor, and resistor?  Ahhhhh, the simplicity!I am wrestling with UserPnp issues for a USB software licensing dongle that is needed by some third party software in one of our production applications. Of course, every machine in production is virtual, so it could be anything in the chain of the software application library to the device driver running on the VM to the configuration of the simulated USB port to the implementation of the USB connection and transport in the virtual host to the physical electrical connections in the USB port on the hypervisor.If only there were the virtual analog to a set of needle-nose pliers to move a virtual jumper.Come to think of it, I always used to drop those damn things such that they would land in an irretrievable position under the motherboard anyway.

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• 'dock' working in simple words

  - by Shirish11

  I would like to know the idea behind the working of 'docking' in applications. I have worked with applications where components from individual forms are docked on a single main form to provide the necessary GUI. But I don't have any idea whats happening in the background. According to Wikipedia A dock is a graphical user interface element that typically provides the user with a way of launching, switching between, and monitoring running programs or applications. Now I am a bit confused if it is some component or an event or a property or something else. EDIT : The applications was developed in Delphi on windows platform. There is something more in Delphi (manual dock and automatic dock).

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• Implementing movement on a grid

  - by Dvole

  I have a simple snake game, where I have other NPC snakes on the field. How do I calculate the movement of those other snakes so that they did not hit walls, and each other? So far I have it like this: I check for current coordinates and when there is a wall nearby I change direction to some other one. And so on, this way the snakes never collide the walls. But not actually colliding other snakes, how do I prevent this? I figured I could probe for the direction I'm heading and if there is anything there I would change direction too, but there is a set of situation where this won't work, for example if another snake will block off all exits later.

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• API always returns JSONObject or JSONArray Best practices

  - by Michael Laffargue

  I'm making an API that will return data in JSON. I also wanted on client side to make an utility class to call this API. Something like : JSONObject sendGetRequest(Url url); JSONObject sendPostRequest(Url url, HashMap postData); However sometimes the API send back array of object [{id:1},{id:2}] I now got two choices (): Make the method test for JSONArray or JSONObject and send back an Object that I will have to cast in the caller Make a method that returns JSONObject and one for JSONArray (like sendGetRequestAndReturnAsJSONArray) Make the server always send Arrays even for one element Make the server always send Objects wrapping my Array I going for the two last methods since I think it would be a good thing to force the API to send consistent type of data. But what would be the best practice (if one exist). Always send arrays? or always send objects?

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• MCP 1.7.10 Java class navigation

  - by Elias Benevedes

  So, I'm new to the Minecraft modding community and trying to understand where to start. I've attempted to do it before, but dropped it to the complexity of starting and the lack of a site like this to help (Mind that I'm also semi-new to Java, but have worked extensively in Javascript and Python. I understand how Java is different from the two). I have downloaded MCP 9.08 (Decompiles 1.7.10), and decompiled Minecraft. I'm looking to mod client, so I didn't supply it with a server jar. Everything seemed to work fine in decompile (Only error was it couldn't find the server jar). I can find my files in /mcp908/src/minecraft/net/minecraft. However, if I open up one of the classes in, say, block, I see a bunch of variables starting with p_ and ending with _. Is there any way to make these variables more decipherable, to understand what's going on so I can learn by example? Thank you.

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• How to prevent a specific website from linking to our domain?

  - by Edward

  We have a landing page which is used only for running an ad campaign. There is a website that has found this link somehow and is linking to it. I've been told by marketing they don't want that website linking to the landing page. How can I prevent a specific website from linking to our domain? I don't want to block all websites from linking to it, just this specific one. Is there solution something to do with .htaccess? If so, please provide an example of doing this or a link to example because I've been unable to find one.

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• Disabling Bluetooth crashes 3G: can I consider this a bug?

  - by workflow

  I'm on an Acer TravelMate 8372G here runnning Ubuntu 11.10 64bit and I get the following weird behaviour: As soon as I turn off bluetoooth, the built-in 3G connection disconnects and Network Manager is unable to reconnect, leaving the following track in syslog: NetworkManager[1205]: <warn> GSM modem enable failed: (32) Unknown error The only way I'm able to reconnect 3G is by going all the way through rfkill unblock bluetooth rfkill block wwan rfkill unblock wwan sudo service network-manager restart My question to you guys: should I file a bug, or is there any any logical connection I'm missing that makes this a feature? = thanks! workflow

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