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• folder structure for project documentation

  - by Qiulang

  Hi all, I saw some questions raised about the folder structure of source codes, but I never see the question about folder structure of project documentation. I googled it and still do not see many articles talk about. Here is one http://www.projectperfect.com.au/downloads/Info/info_project_folder_structure.pdf To quote some of its words: "There are two broad approaches: Organize by phase so that each top directory is a phase. For example, you might have directories for Feasibility, Business Analysis, Design etc. or whatever your phases are called. Organize by function so that the top directory level are functions. For example, Risks, Requirements, Scope, Change Control, Development. Most times a mix of both are used..." So any thought about it? I believe this is also an important issue!

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• Convert ISO/Windows charsets to UTF-8 in Javascript

  - by Amir

  I'm developing a firefox plugin and i fetch web pages to do some analysis for the user. The problem is when i try to get (XMLHttpRequest) pages that are not utf-8 encoded the string i see is messed up. For example hebrew pages with windows-1125 or Chinese pages with gb2312. I already tried the following: var uDecoder=Components.classes["@mozilla.org/intl/scriptableunicodeconverter"].getService(Components.interfaces.nsIScriptableUnicodeConverter); uDecoder.charset="windows-1255"; alert( xhr.responseText ); var decoder=Components.classes["@mozilla.org/intl/utf8converterservice;1"].getService(Components.interfaces.nsIUTF8ConverterService); alert(decoder.convertStringToUTF8(xhr.responseText,"WINDOWS-1255",true)); I also tried escape/unescape/encodeURIComponent any ideas???

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• Python: how to run several scripts (or functions) at the same time under windows 7 multicore processor 64bit

  - by Gianni

  sorry for this question because there are several examples in Stackoverflow. I am writing in order to clarify some of my doubts because I am quite new in Python language. i wrote a function: def clipmyfile(inFile,poly,outFile): ... # doing something with inFile and poly and return outFile Normally I do this: clipmyfile(inFile="File1.txt",poly="poly1.shp",outFile="res1.txt") clipmyfile(inFile="File2.txt",poly="poly2.shp",outFile="res2.txt") clipmyfile(inFile="File3.txt",poly="poly3.shp",outFile="res3.txt") ...... clipmyfile(inFile="File21.txt",poly="poly21.shp",outFile="res21.txt") I had read in this example Run several python programs at the same time and i can use (but probably i wrong) from multiprocessing import Pool p = Pool(21) # like in your example, running 21 separate processes to run the function in the same time and speed my analysis I am really honest to say that I didn't understand the next step. Thanks in advance for help and suggestion Gianni

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• What software can I use to create a video of following type?

  - by Bond

  Here is a video on this link http://www.youtube.com/watch?v=kSx873lOgIc&feature=player_embedded#at=62 Someone among my bosses wants to create some thing similar to the video on above link and has asked me what software can they use to do the same.The purpose is to create educational content only.Which can have the demonstrations (animations ) and audio also running in backend. I am not clear as what software can be used for this on Linux or Windows. I have users which use Windows and Linux both. I have used video editing on Mac using Final Cut Pro but the video on the above link is not some thing which can be achieved with FCP.(Or may be I am not aware) I am looking solution for 1) Linux users 2) Windows users In case of Linux it is Ubuntu for some users and Fedora for some others. I am a Linux guy so I am specifically posting this question in terms of Ubuntu but I also need suggestions for Windows type of users.I have no clue of such video animations at all.

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• How to create a new user group and add user to it in Ubuntu 12.04

  - by Omal Lasitha

  My OS is Ubuntu 12.04.1 Desktop version (32bit). I want to create a new group called restricted which allows its users to use Audio devices and Video devices only, and I want to add a user called visitors to that group. By using Users and Groups, I was able to create a new user account called visitors, and a new group called restricted. But I can't figure out how to add those settings to the group restricted, and add the visitors user account to that group. I tried Google-ing, but every search result was about accessing root privileges and all, and I couldn't find answers on this specific topic.

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• Several devices in Device Manager have Code 3 error

  - by John Straka

  One of our users' machines (Dell Optiplex 380 running Windows 7 32-bit) is having a weird driver issue. A bunch of devices have Error Code 3: The driver for this device might be corrupted, or your system may be running low on memory or other resources. (Code 3) The system isn't low on memory (only 1GB in use out of whatever the max for 32-bit is.) Here's a screenshot of the affected devices: I tried reinstalling the chipset and audio drivers to no avail. I have no idea what prompted it, and I'm not sure how the basic Windows Generic PnP Monitor driver could even be corrupted. What might be causing this error?

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• Impossible do find motherboard drivers to Dell Dimension 3000

  - by Masziej

  Hello, I recently formatet and reinstalled XP on my girlfriends computer. Ive had this computer since 2001, never formatet it, until now =) Anyway the problem is that i cant find any drivers for the motherboard (integrated audio, video and ethernet). as i said its an old ass Dell. Cant remember if I got any cds along with it. Even if i did theyre gone a long time ago. So, I ran CPUZ and got this: --Motherboard-- Dell Computer Corp. Model 0K8980 And started googling. But didnt find any drivers. Still cant So im asking for a little help here. I really need to get the computer going before she wants a new one :D And yes i have looked on dells homesite, but they dont seem to wanna host drivers for their old stuff

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• Windows7: Which app has a notification sound with 3 descending notes?

  - by Eric

  Brand new Win7 box loaded with the usual dev tools -- VS2008, Firefox, Chatzilla, Thunderbird, emacs, Pidgin, Putty, iTunes, SharpReader. Every couple of minutes, I get an audio notification consisting of three rising notes, maybe a middle-C-G-F on a piano (I don't have a piano handy, and don't have time to use GarageBand to try to figure it out). Nothing in the notification bar is flashing when this happens. The sound isn't in any of the Windows Sound control panel applets. And it's not in C:\Windows\Media, so it's most likely coming from a non-Microsoft app. Is this familiar to anyone?

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• java statistics collection for performance evaluation

  - by user384706

  What is the most efficient way to collect and report performance statistic analysis from an application? If I have an application that uses a series of network apis, and I want to report statistics at runtime, e.g. Method doA() was called 3 times and consumed on avg 500ms Method doB() was called 5 times and consumed on avg 1200ms etc Then, I thought of using a well defined data structure (of collection) that each thread updates per remote call, and this can be used for the report. But I think that it will make the performance worse, for the time spend for statistics collection. Am I correct? How would I procceed if I used a background thread for this, and the other threads that did the remote calls were unaware of this collection gathering? Thanks

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• How to configure a Logitech USB headset on Fedora 14 [closed]

  - by Humble Debugger

  I have a Logitech USB headset http://www.amazon.com/gp/product/B003NREDG4 but I can't hear anything nor input anything through it. I am working on a Fedora 14 desktop. cat /proc/asound/cards 0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0xfebdc000 irq 51 2 [Headset ]: USB-Audio - Logitech USB Headset Logitech Logitech USB Headset at usb-0000:00:1d.0-2, full speed /sbin/lsmod | grep -c snd 14 lsusb Bus 008 Device 002: ID 046d:c529 Logitech, Inc. Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 004: ID 046d:0a0b Logitech, Inc. ClearChat Pro USB Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Please advise

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• Sound plays on headphones and speakers with Lenovo ThinkPad L512 + Ubuntu 10

  - by Oscar Godson

  The only thing really missing from this install is this issue with the sound. I've searched all over the forums and i found one thing where you get the model and codecs and write them to a file, however, I can't seem to find what my "model" is because none of the postings have anything about Lenovo laptops. Here is the command they all asked for: Code: cat /proc/asound/card0/codec#* | grep Codec Codec: Realtek ALC269 Codec: Intel G45 DEVIBX With that info, how do I get the model, and how do I get my speakers to stop playing when headphones are plugged in. Also, I don't have any software installed like pulse audio either, so it's not that. Thanks so much to whoever can answer this... The Ubuntu forums are nearly useless... ive never gotten a correct answer back on that site.

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• Can I detect unused extra parameters passed to javascript methods?

  - by Pablojim

  In Javascript I can call any method with more than the necessary amount of parameters and the extra parameters are silently ignored. e.g. letters = ['a','b','c'] //correct letters.indexOf('a') //This also works without error or warning letters.indexOf('a', "blah", "ignore me", 38) Are there ways to detect cases where this occurs? My motivation is that in my experience cases where this occurs are usually bugs. Identification of these by code analysis or at runtime would help track these errors down. These cases are especially prevalent where people are expecting alterations to base types which may not have occurred. Logging a warning where this happens e.g. Date.parse('02--12--2012', 'dd--MM--YYYY') Notes: To be clear I would like a solution that doesn't involve me sprinkling checks all over my code and other peoples' code.

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• Question about the mathematical properties of hashes

  - by levand

  Take a commonly used binary hash function - for example, SHA-256. As the name implies, it outputs a 256 bit value. Let A be the set of all possible 256 bit binary values. A is extremely large, but finite. Let B be the set of all possible binary values. B is infinite. Let C be the set of values obtained by running SHA-256 on every member of B. Obviously this can't be done in practice, but I'm guessing we can still do mathematical analysis of it. My Question: By necessity, C ? A. But does C = A?

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• Add up values from a text file

  - by Stanley

  Hi Guys I have a text file that contains Amounts at Substring (34, 47) of each line. I need to sum Up all the Values to the End of the File. I have this code that I had started to build but I do not know how to proceed from here: public class Addup { /** * @param args the command line arguments */ public static void main(String[] args) throws FileNotFoundException, IOException { // TODO code application logic here FileInputStream fs = new FileInputStream("C:/Analysis/RL004.TXT"); BufferedReader br = new BufferedReader(new InputStreamReader(fs)); String line; while((line = br.readLine()) != null){ String num = line.substring(34, 47); double i = Double.parseDouble(num); System.out.println(i); } } } The output is like this: 1.44576457E4 2.33434354E6 4.56875685E3 The Amount is in two decimal Places and I need the result also in the Two decimal Places. What Is the Best way to achieve this?

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• Programmers : Would it help us make better software if we treated our creations as our children?

  - by mcnemesis

  Sometime back, while working on some project, I found a lot of challenges in developing my ideas into a viable and really useful solution. But along the way, I developed more passion for seeing the system work - actually, I wrote in my eDiary "...I want to see this child of mine grow...". The work did mature indeed, and is now a successful system employed in analysis of academic progress in my client's schools. What am really wondering is whether it might help me more (or even other programmers) if this notion of approaching software development as if it were a task of raising one's child could help deliver better software and probably more lovable software :)

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• What's a good book for learning BCPL?

  - by paxdiablo

  A long time ago, I worked on some BCPL code (very similar to C although even more basic, difficult though that is to imagine). Now, as part of a compiler course, we're going to be setting assignments for building some of the parts of the compiler (lexical and semantic analysis) and I'd like to know what the community thinks is the best book for learning about the language (and concrete why you think it's the best). Not how to write compilers for it, just on how to program in it. It'll be up to the students themselves to figure out how best to develop a compiler. We're using BCPL since the chance of people being able to plagiarise code for a compiler is very slim. Any suggestions?

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• How do I hook all http get requests and distinguish downloaded (by standard download manager) files

  - by Ivan

  I want to write a Firefox add-on for advanced history tracking and bookmarking which will send URLs the browser meets during usage (and all the metadata available about the context) to a web service which will keep track of them storing in an SQL database for further access and analysis. I'd like to divide URLs tracked into 5 groups: those I explicitly click to bookmark, those I download by Firefox standard built-in download manager, all other URLs accessed, all URLs met on all viewed pages as hrefs, all other URLs mentioned in HTML sources of all viewed pages. Any ideas of how to get those in an extension?

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• ffmpeg error while segmenting

  - by Tommy Ng

  I'm using ffmpeg and segmenter on Ubuntu 10.04 to create the transport stream from flv/h264 video files and then segment the ts segments for ipad streaming. Some ts files show an error with segmenter - Output #0, mpegts, to '29': Stream #0.0: Video: 0x0000, yuv420p, 480x360, q=2-31, 90k tbn, 25 tbc Stream #0.1: Audio: 0x0000, 0 channels, s16 [mpegts @ 0x11f4ac0]sample rate not set Could not write mpegts header to first output file my ffmpeg command for creating the ts file - ffmpeg -i 1.flv -f mpegts -acodec libfaac -ar 48000 -ab 64k -s 480x360 -vcodec libx264 -b 192k -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -subq 5 -trellis 1 -refs 1 -coder 0 -me_range 16 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -bt 200k -maxrate 192k -bufsize 192k -rc_eq 'blurCplx^(1-qComp)' -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -level 30 -aspect 480:360 -g 30 -async 2 -y 1.ts my segmenter command - segmenter 1.ts 10 1 1.m3u8 path/to/streams/

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• 'hijacking' gui and mapping certain controls to certain functions. VNC. TouchOSC

  - by Nick

  I need a VNC LIKE application which rather than sharing the screen, can take control of a specific application and then share that functionality across a network to multiple clients. Obviously, VNC requires use of the mouse and therefore only one user can do something at one time, this is NOT what I am after. I am after something that can hijack the graphic user interface, map certain controls, and then display them in another piece of software (perhaps like TOUCHOSC) The software I would like to map and share is called YAMAHA STUDIO MANAGER and is used to control certain Yamaha audio hardware, and in my case a Yamaha LS9 and M7CL mixing console. Its free.

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• HTTP Live Streaming Broadcast

  - by user761389

  I'm designing an app for streaming video from a device (e.g. iPhone) via a server to one or more devices and have been researching Apples HTTP Live Streaming protocol. One thing that isn't clear is whether it is possible to stream live video (with audio) to the server and then have it streamed simultaneously in real time to the client devices. From reading the documentation and technical notes from Apple it seems like the index file needs to be created before the segmented video files can be served to a client. Is this right? If so maybe HTTP Live Streaming isn't suitable in this case, what other technologies or software should I consider? Thanks

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• How do I restore the Gnome Panel volume control in Ubuntu 10.04?

  - by Neil

  I use alsa, and I don't have a volume control applet on my Gnome Panel. When I right click and select "add to panel", there is nothing that has to do with "sound", "audio" or "volume" in the list, and the "Indicator Applet" or "Indicator Applet Session" things have no volume controls, or properties that would let you enable any sort of volume control. How can I get a volume control in Ubuntu, so I don't have to run aumix in a terminal or something? I've been using Linux since Redhat 5, it's beyond me why these sorts of problems are still around. Someone should just put a damn "Volume Control" element in the list of things to add to the panel, even if it doesn't work, perhaps showing an error message.

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• Looking for a way execute a task on all files in a directory (recursively) on Windows

  - by stzzz1

  I have a huge number of mp4 video files that needs to have a volume boost. I need a way to execute a ffmpeg audio filter on all files in a specified base directory (and in subdirectories as well). My problem is that I'm working on a Windows computer and I have no knowledge of its shell syntax. I would like to do the equivalent of what this bash script does : TARGET_FILES=$(find /path/to/dir -type f -name *.mp4) for f in $TARGET_FILES do ffmpeg -i $f -af 'volume=4.0' output.$f done I spent quite some time this afternoon looking for a solution but the recursive nature of what I need (that is so simple with find!) isn't too clear. Any help would be greatly appreciated!

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• Encoding with FFmpeg using a FIFO

  - by Ashot Martirosyan

  Hello everyone. I'm trying to convert Flac audio file to AAC file using command line. So I wrote this ffmpeg -i input.flac temp.wav faac -q 120 -o output.m4a temp.wav It's working fine. Now I want to do the same using fifo, so I'm writing this mkfifo temp.wav ffmpeg -i input.flac temp.wav & faac -q 120 -o output.m4a temp.wav And it's freezing. So could you tall me what I'm doing wrong. Thanks a lot, and sorry for my English.

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• Ubuntu Studio 10.4 boots to terminal mode only

  - by Don

  I did clean install from ISO DVD. It boots only to command line asking for login. After I login I enter STARTX and desktop appears and some of the studd actually works, but there are a lot of problems: there is no way to reboot or shut down except to stopx/logoff and enter shutdown sound system doesn't respond pulse audio volume control gives "connection failed, connection refused" DVD drives not available GDebi Package installer is grayed out and so I can't use it (but synaptic package manager works OK) Software Center won't start when clicked -- it just stops trying DBus cant run because it says /usr/local/var/run/dbus/system_bus_socket file not found (also /var/run/dbus/system_bus_socket file not found) There's just a lot of things wrong and I can't help but think something is missing or was mis-coded in the distro so that there are typos in some script somewhere. If anyone can tell me where to begin to untangle this mess I'd appreciate it, but I think it all begins when it can't start the GUI automatically and I need to enter STARTX.

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• Full GC real time is much more that user+sys times

  - by Stas

  Hi. We have a Web Java based application running on JBoss with allowed maximum heap size of about 1.2 GB (total machine physical memory is 2 GB). At some point the application stops responding (to clients) for several minutes. After some analysis we found out that the culprit is the Full GC. Here's an excerpt from the verbose GC log: 74477.402: [Full GC [PSYoungGen: 3648K-0K(332160K)] [PSOldGen: 778476K-589497K(819200K)] 782124K-589497K(1151360K) [PSPermGen: 102671K-102671K(171328K)], 646.1546860 secs] [Times: user=3.84 sys=3.72, real=646.17 secs] What I don't understand is how is it possible that the real time spent on Full GC is about 11 minutes (646 seconds), while user+sys times are just 7.5 seconds. 7.5 seconds sound to me much more logical time to spend for cleaning <200 MB from the old generation. Where does all the other time go? Thanks a lot.

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