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• What language is better suited for P2P video streaming?

  - by Roman

  I would like to write a Skype like software which allows P2P video/audio streaming. What language is better suited for that? There are several requirements: Software should be easy to install. It should be easy to program. I want to have access to video information. For example to make a face expression recognition on the fly. It should be free. I am thinking of Python and Java. Which one would be better? Or may be there is a third choice which is better? ADDED Flash is an attractive option since users can use their browser in which flash is installed by default and if not, it's easy to install flash. But I do not know if I can have access to video (if I want to do some processing). Moreover, Flash is not free.

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• Why isn't my javascript working on a local HTML file using UIWebView loadRequest:?

  - by Raphael

  Hi Everyone, I have a script that generates a temporary HTML file that has links to external Javascript files that it requires to run. <script src="file:///Users/raphaeldefranco/Library/Application Support/iPhone Simulator/User/Applications/BA9E724E-76BD-4F28-B224-54B4C73786D6/LogTen.app/Reports/Time by Year/../../Tools/PlotKit/Base.js" type="text/javascript"></script> The links are absolute and they are to the right place (There is a CSS link as well that uses the same method and it works fine). I've been using the following, which finds images and CSS just fine but for some reason won't run the .js. [webView loadRequest:requestObj]; I've tried changing the encoding of the files. I had a problem getting the CSS to work until the file was in unicode, but so far no luck. All the Script files are bundled with my project etc. Thanks in advance!

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• selector for button not working

  - by user1662334

  I want to change the background of the button when the button is unclickable.I have used selector for that but it is not working in the case when the button remains unclickable. This is the selector file: <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_enabled="false" android:drawable="@drawable/button_lightgrey" /> <item android:state_pressed="true" android:state_enabled="true" android:drawable="@drawable/button_blue"/> <item android:state_focused="true" android:drawable="@drawable/button_darkgreen" /> <item android:drawable="@drawable/button_lightgreen" /> </selector> This is the button where i am using this selector file: <Button android:id="@+id/PrevButton" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_centerInParent="true" android:layout_marginLeft="5.0dip" android:layout_weight="1.0" android:background="@drawable/ibtn" android:onClick="onPrevButtonClick" android:text="Prev" /> Please help me.All other functions are working in the selector file but only the unclickable button case is not working.Thanks

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• Layout Drawer doesn't add new view in a new line

  - by user547995

  Hy!! If i want to add a textview and a textedit, both are in the same line I have a Linear Layout <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content"> <TextView android:text="@+id/TextView01" android:id="@+id/TextView01" android:layout_width="wrap_content" android:layout_height="wrap_content"></TextView> <EditText android:text="@+id/EditText01" android:id="@+id/EditText01" android:layout_width="wrap_content" android:layout_height="wrap_content"></EditText> </LinearLayout> What i have made wrong?

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• PHP Variable Encryption

  - by NCoder

  I have the following code that creates an encryption in PHP: $password = "helloworld"; $passwordupper = strtoupper($password); $passwordencode = mb_convert_encoding($passwordupper, 'UTF-16LE'); $passwordsha1 = hash("SHA1", $passwordencode); $passwordbase64 = base64_encode($passwordsha1); The instructions I have from the system I'm trying to connect to states: The encoding process for passwords is: first convert to uppercase, then Unicode it in little-endian UTF 16, then SHA1 it then base64 encode it. I think I'm doing something wrong in my code. Any ideas?! Thanks! NCoder

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• How to fix Eclipse validation error "No grammar constraints detected for the document"?

  - by Casey

  Eclipse 3.5.2 is throwing an XML schema warning message: No grammar constraints (DTD or XML schema) detected for the document. The application.xml file: <?xml version="1.0" encoding="UTF-8"?> <application xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/application_5.xsd" version="5"> </application> I do not want to disable the warning. How can I get Eclipse to correctly validate the XML document?

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• Can a regex return a match that's not a part of the original string?

  - by Vishnu

  I'm using an application that requires me to provide a regex for various files. It uses the matches from the regex to uniquely identify each file and then use a data store to retrieve metadata about these files. there is however a problem with the application, so it assumes that the data which is used to identify each file is only numeric data. Hence, it stores the results of matches in integers. I control the data store but not the names of the files. Since the application has a bug in it, I was hoping that I could use an encoding scheme to convert the non-numeric data to an integer. But for that I'd require the regex to return something that's not part of the original string as a match. Is this possible?

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• IIS redirects to url beginning with "http://http" although syntax in web.config file appears to be alright

  - by user1608920

  Here's what I have so far: <?xml version="1.0" encoding="UTF-8"?> <configuration> <location path="osb"> <system.webServer> <httpRedirect enabled="true" exactDestination="true" destination="http://50.63.54.135/app/osb" httpResponseStatus="Permanent" /> </system.webServer> </location> </configuration> The above redirect works, but it takes me to http://http//50.63.54.135/app/osb instead of just http://50.63.54.135/app/osb This produces an 404 error. I tried to remove "http://" from destination. Same effect. What am I missing ?

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• Python universal feedparser xml

  - by timg

  I am trying to read an xml feed with the python feedparser, but cannot seem to navigate the elements. Here is what I am trying: import feedparser d = feedparser.parse('http://www.website.com/feed') text= d.status.test and here is the xml: <?xml version="1.0" encoding="UTF-8"?> <statuses type="array"> <status> <created>Tue Dec 21 14:16:12 +0000 2010</created> <id>123</id> <text>Hello</text> </status> </statuses>

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• Post serialized to xml object to mvc action

  - by Maxim

  Hello! i have 2 projects. First project send to 2-nd via http-post requests, as serialized to XML class instances. Ex: <?xml version="1.0" encoding="utf-16"?> <MyObject xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <UserId>test user</UserId> ... How can i recieve it in action of 2-nd project? [HttpPost] public ActionResult Index(MyObject id) { ... or like string, and deserialize after? Thanx.

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• Read a file with 2048 bytes

  - by Suresh S

  Guys i have a file which has only one line. The file has no encoding it is a simple text file with single line. For every 2048 byte in a line , there is new record of 151 byte (totally 13*151 byte = 1945 records + 85 byte empty space). similarly for the next 2048 bytes. What is the best file i/o to use? i am thinking of reading 2048 bytes from file and storing it in an array . while (offset < fileLength &&(numRead=in.read(recordChunks, offset,alength)) >= 0) { } how can i get from the read statement only 2048 bytes at a time . i am getting IndexOutofBoundException.

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• iOS Development: Why isn't my try block catching the exception?

  - by BeachRunnerJoe

  Hi. I have an exception being thrown in my code, but when I wrap it in an try/catch block, it doesn't get caught. The NSLog statement is never called in the catch block. Here's the code... NSInteger quoteLength; [data getBytes:(void *)&quoteLength range:NSMakeRange(sizeof(messageType), sizeof(quoteLength))]; @try { //Debugger stack trace shows an NSException being thrown on this statement NSData *stringData = [data subdataWithRange:NSMakeRange(sizeof(messageType) + sizeof(quoteLength), [data length])]; NSString *quote = [[NSString alloc] initWithData:stringData encoding:NSUTF8StringEncoding]; NSLog(@"received quote: %@",quote); [quote release]; } @catch (NSException * e) { NSLog(@"Exception Raised: %@", [e reason]); } Why doesn't it get caught? Thanks so much!

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• Ideas for band site, which technology to use?

  - by brux

  I am attempting to design and build a website for my friends band. There is minimal content to be included such as bio,news,enbemdded Audio/Visual material. My web dev expertise is average. I'm basicaly looking for inspiration, I was edging towards embedding a silverlight deepzoom xap object to add some visual stimulation, perhaps by featuring a high res photo of the bandshardware/equipment which zooms when mouseover occurs. Does anyone have any cool ideas for a central feature for this site, and which way to approact it in terms of technique (js,css,silverlight etc) If anyone has any immediate ideas which they think would be cool then I am eager to hear them! Also if anyone can link me to any cool band sites they have come across recently I would be greatful,nothing too complicated though please I will be doing all the work myself. Im want the site to be simple but have a certain wow factor!

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• Firefox 15.0 ignores meta charset="uft-8"

  - by flapjack

  I have this simple html <!Doctype html> <head> <title>Uft-8</title> <meta charset="uft-8"> <style type="text/css"> .tr_deco{ background-color:pink; border:1px solid red; } </style> </head> <body> <a class="new_krud_slider" href="">make new</a> </body> </html> When i try out the code on firefox 15,i get this firebug error. An unsupported character encoding was declared for the HTML document using a meta tag. The declaration was ignored. My firebug version is 1.7.3. What could be causing this error?.

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• How to Find Frequency while recording voice in iphone?

  - by Pugal Devan

  Hi Friends, In my application i have done to record the voice and playing in the device. Now i want to find the audio frequency of that recorded voice(While recording). How can i find?.I dont have any idea. I have downloaded "aurio Touch" program.But its too difficult to understand me. So is there any tutorials are avilable(in iPhone)?. How can i achieve this? Please guide me. Thanks.

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• Socket receive buffer size

  - by Kanishka

  Is there a way to determine the receive buffer size of a TCPIP socket in c#. I am sending a message to a server and expecting a response where I am not sure of the receive buffer size. IPEndPoint ipep = new IPEndPoint(IPAddress.Parse("192.125.125.226"),20060); Socket server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); server.Connect(ipep); String OutStr= "49|50|48|48|224|48|129|1|0|0|128|0|0|0|0|0|4|0|0|32|49|50"; byte[] temp = OutStr.Split('|').Select(s => byte.Parse(s)).ToArray(); int byteCount = server.Send(temp); byte[] bytes = new byte[255]; int res=0; res = server.Receive(bytes); return Encoding.UTF8.GetString(bytes);

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• Need a very simple bash-based webserver for logging XML in HTTP POST

  - by Syffys

  As in title, it's for testing purpose and I need it to be extremely light (1 line to 1 single light file). Here is a XML query sample: XML_QUERY=$(cat <<EOF <?xml version='1.0' encoding='UTF-8'?> <Test></Test> EOF ) curl -H "Content-type: text/xml; charset=utf-8" -H "Soapaction: \"\"" -k -d "${XML_QUERY}" http://localhost:8088 Here are some of the tracks I have found so far even if I wasnt able to adapt them to work as I expect: Netcat minimal webserver: Problem is that my nc does not have the -q option, so the connection is closing before delivering the XML content Netcat Only webserver: Same as above Python based: But does not handle POST Thanks in advance!

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• Optimum php.ini and my.cnf settings for a small Drupal 7 site on a virtual server

  - by the other dude

  I looking for advice on how to set up the default configuration of php.ini and my.cnf for a small site (100 pages) with very little traffic (300 visitors per day). All pages have a bit of text, some images, no video, no audio, no flash/silverlight, very little javascript and jquery. For tracking I'm using GA and Piwik. The main site database is around 50MB. The site is hosted on a virtual server with 20GB RAM and 6 vCPUs so there's hopefully a lot of muscle to make it run very fast. I don't know much about tweaking php and mysql settings and would appreciate it if your answers can be as detailed as possible. Thanks

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• Accessing XML/PHP with period in tag

  - by LuckyShot

  Hi guys, Quick newbie question here, how do I access totalResults? XML <?xml version="1.0" encoding="UTF-8"?> <OpenSearchDescription> <opensearch:totalResults>1</opensearch:totalResults> <posts> <post> <score>10</score> </post> </posts> </OpenSearchDescription> To access the score I would do this: PHP $xmlObj = simplexml_load_string($theXMLabove); echo $xmlObj->posts->post[0]->score; But none of these work for the totalResults: echo $xmlObj->opensearch:totalResults; echo $xmlObj->opensearch->totalResults; Sorry for asking such a lame question... Documentation on how to traverse XML with PHP is also appreciated :) Thanks!

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• not able to register sip user on red5server, using red5phone

  - by sunil221

  I start the red5, and then i start red5phone i try to register sip user , details i provide are username = 999999 password = ** ip = asteriskserverip and i got --- Registering contact -- sip:[email protected]:5072 the right contact could be --- sip :99999@asteriskserverip this is the log: + SipUserAgent - listen - Init... Red5SIP register [SIPUser] register RegisterAgent: Registering contact (it expires in 3600 secs) RegisterAgent: Registration failure: No response from server. [SIPUser] SIP Registration failure Timeout RegisterAgent: Failed Registration stop try. Red5SIP Client leaving app 1 Red5SIP Client closing client 35C1B495-E084-1651-0C40-559437CAC7E1 Release ports: sip port 5072 audio port 3002 Release port number:5072 Release port number:3002 [SIPUser] close1 [SIPUser] hangup [SIPUser] closeStreams RTMPUser stopStream [SIPUser] unregister RegisterAgent: Unregistering contact SipUserAgent - hangup - Init... SipUserAgent - closeMediaApplication - Init... [SIPUser] provider.halt RegisterAgent: Registration failure: No response from server. [SIPUser] SIP Registration failure Timeout

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• Howto convert to string and read data from TCP packet

  - by salime

  I used sharppcap to capture TCP packets. Now i wanna reconstruct HTTP packet from TCP packets but i don't know how. I read somewhere i can find start of HTTP packet in TCP data... i tried to convert byte[] TCP data to string using this code: string s = System.Text.Encoding.UTF8.GetString(tcp_pack.Data); but the string isn't readable. like a binary file that is opened with notepad. is it because the data is encrypted or code is incorrect? how can i reconstruct HTTP packet from TCP packets?

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• How to set an ImageView and two TextviewS to have the same height?

  - by M.ES

  I've got the following layout with one ImageView and 2 TextView, I would like them all to have the same height. However, the ImageView is always taking more than half of the screen. Any help is highly apreciated. Here is the layout: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#FFFFFF" android:orientation="vertical" > <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="0.4" android:src="@drawable/sprint" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="0.3" android:background="#555555" android:text="@string/hello" /> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="0.3" android:text="@string/hello" /> </LinearLayout>

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• Insert using stored procedure from nhibernate

  - by jcreddy

  Hi I am using the following code snippets to insert values using stored procedure. the code is executing successfully but no record is inserted in DB. Please suggest with simple example. **---- stored procedure--------** Create PROCEDURE [dbo].[SampleInsert] @id int, @name varchar(50) AS BEGIN insert into test (id, name) values (@id, @name); END **------.hbm file-------** <?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"> <sql-query name="Procedure"> exec SampleInsert :Id,:Name </sql-query> </hibernate-mapping> **--------c# code to insert value using above sp------** ISessionFactory sessionFactory = new Configuration().Configure().BuildSessionFactory(); ISession session = sessionFactory.OpenSession(); IQuery query = session.GetNamedQuery("Procedure"); query.SetParameter("Id", "222"); query.SetParameter("Name", "testsp"); query.SetResultTransformer(new NHibernate.Transform.AliasToBeanConstructorResultTransformer(typeof(Procedure).GetConstructors()[0])); Regards Jcreddy

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• Reading bytes from JavaScript string

  - by Jan

  I have a string containing binary data in JS. Now I want to read, for example, an integer from it. So I get the first 4 characters, use charCodeAt, do some shifting etc. to get an integer. Problem is that strings in JS are UTF-16 (instead of ASCII) and charCodeAt often returns values higher than 256. The Mozilla reference states that "The first 128 Unicode code points are a direct match of the ASCII character encoding." (what about ASCII values 128?) How can I convert the result of charCodeAt to an ASCII value? Or is there a better way to convert a string of four characters to a 4 byte integer?

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• MFMailComposeViewController configure mimetype for attachment

  - by user749918

  I need some help. I am trying to attach files to mail using, [mail addAttachmentData:attachmentData mimeType:@"image/png" fileName:fileName]; but the problem is that if i need to send a .jpeg image i need to repeat code just for setting mime type to "mimeType:@"image/jpeg". My question is that is there any general mimeType that can attach any kind of file irrespective of .doc,.ppt,.pdf or an audio or video file. is there any general mimeType: for an kind of attachment. Thanks in advance.

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