Search Results

Search found 14092 results on 564 pages for 'video tutorial'.

Page 475/564 | < Previous Page | 471 472 473 474 475 476 477 478 479 480 481 482  | Next Page >

• Which is faster in memory, ints or chars? And file-mapping or chunk reading?

  - by Nick

  Okay, so I've written a (rather unoptimized) program before to encode images to JPEGs, however, now I am working with MPEG-2 transport streams and the H.264 encoded video within them. Before I dive into programming all of this, I am curious what the fastest way to deal with the actual file is. Currently I am file-mapping the .mts file into memory to work on it, although I am not sure if it would be faster to (for example) read 100 MB of the file into memory in chunks and deal with it that way. These files require a lot of bit-shifting and such to read flags, so I am wondering that when I reference some of the memory if it is faster to read 4 bytes at once as an integer or 1 byte as a character. I thought I read somewhere that x86 processors are optimized to a 4-byte granularity, but I'm not sure if this is true... Thanks!

  Read the article

• Visually [Diagrams/movies] Display events and states of System using old logs of Application to trac

  - by singh

  Hi In My Application many process runs. Having multiple threads in each process. Whenever any bug comes, I have to analyze thousands of lines of logs to know exact root-cause. I am thinking of an idea, Please guide me if it is feasible and good enough Each log have Process name , Thread id , and Time stamp along with message. If I can create a intelligence to capture what is happing with time and display in a movie which user can view it like a normal video. Forward – backward etc. It will help to reach root cause fast and bug tracing will become easy. Please guide me on library in c++ using which I can draw diagrams and display as movie

  Read the article

• Custom add_action('save_post') causes html markup to disappear!

  - by Scott B

  I've added a custom "save_post" action to my theme (code is below). However, when I place images or video code in the post, its stripped away. The only way I can get it to stay is to comment out the add_action line. What do I need to do in order to keep all the post info intact? add_action('save_post', 'custom_add_save'); function custom_add_save($postID){ if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) { return $postID; } else { // called after a post or page is saved if($parent_id = wp_is_post_revision($postID)) { $postID = $parent_id; } if ($_POST['my_customHeader']) { update_custom_meta($postID, $_POST['my_customHeader'], 'my_customHeader'); } else { update_custom_meta($postID, '', 'my_customHeader'); } if ($_POST['my_customTitle']) { update_custom_meta($postID, $_POST['my_customTitle'], 'my_customTitle'); } else { update_custom_meta($postID, '', 'my_customTitle'); } } } function update_custom_meta($postID, $newvalue, $field_name) { // To create new meta if(!get_post_meta($postID, $field_name)){ add_post_meta($postID, $field_name, $newvalue); }else{ // or to update existing meta update_post_meta($postID, $field_name, $newvalue); } }

  Read the article

• Android: The concept for detecting changes of an opened file

  - by niko

  I wrote an application for video recording which stores the recording to a file. Currently I am looking for a way to implement some kind of "listener" to listen for file changes. The concept I would like to implement is the following: Check the file on a set period of time (for example one second), extract changes (get the data that was written in the last period) and do something with these data. I would be very thankful if anyone of you could give any suggestion or point to any useful resource that could help to solve the given problem.

  Read the article

• MonoTouch- 'curated' bindings?

  - by Glinkot

  I'm just converting a video player sample to MT and came to this part: self.view.layer.sublayerTransform = CATransform3DMakePerspective(1000); In Monotouch, I've started with: this.View.Layer.SublayerTransform(CATransform3D.... But no perspective option is available. There is a 'scale' and 'rotate' one - does this mean this functionality is unavailable in MT? Or that I need to start creating my own bindings even though this one has been processed by the binding creation tool Xamarin uses? If anyone could advise how I would apply that transform I'd appreciate it. Cheers

  Read the article

• What does $this generally mean in PHP?

  - by xczzhh

  I am really new to PHP, so I am kind of confused seeing these different operators all day. Here is some code I came across when watching a video tutorail, I'd appreciate it if some could explain a little bit: function index() { $config = Array( 'protocol' => 'smtp', 'smtp_host' => 'ssl://smtp.googlemail.com', 'smtp_port' => 465, 'smtp_user' => '[email protected]', 'smtp_pass' =>'password', ); $this->load->library('email', $config); $this->email->set_newline("\r\n"); $this->email->from('[email protected]', 'Jerry'); $this->email->to('[email protected]'); $this->email->subject('this is an email test'); $this->email->message('this is test message!'); if($this->email->send()) { echo 'Your email was sent'; } else { show_error($this->email->print_debugger()); } } ...

  Read the article

• change the sound volume of a live stream

  - by Omu

  I have something like this: private var myVideo:Video; public var videoDisplay:UIComponent; ... videoDisplay.addChild(myVideo); ... nsPlay = new NetStream(nc); nsPlay.addEventListener(NetStatusEvent.NET_STATUS, nsPlayOnStatus); nsPlay.bufferTime = 0; nsPlay.play(pro); myVideo.attachNetStream(nsPlay); anybody knows how can I change the volume of this stream, I would like to bind the volume to a slider

  Read the article

• How do I use the Zend Youtube API correctly?

  - by pharma_joe

  I am trying to access the YouTube API with the Zend libraries that I have included like this (the full path to the Zend library is components/lib/Zend/Gdata.php): //Include Zend Gdata set_include_path('components/lib'); include("Zend/Gdata.php"); I now try to use the framework thus: //Access video data via Zend library $yt = new Zend_Gdata_YouTube(); However when running the script it returns: Fatal error: Class 'Zend_Gdata_YouTube' not found in E:\inetpub\students\fit3060\20712510\ass2\results.php on line 48 I think I have not included the Zend library properly or declared the include path correctly?

  Read the article

• How to redirect a live data stream adding to it another header and returning it on demand? (PHP)

  - by Ole Jak

  I have a url like http://localhost:8020/stream.flv On request to my php sctipt I want to return (be something like a proxy) all data I can get from that URL (so I mean my php code should get data from that url and give it to user) and my header and my beginning of file. So I have my header and some data I want to write in the beginning of response like # content headers header("Content-Type: video/x-flv"); header("Content-Disposition: attachment; filename=\"" . $fileName . "\""); header("Content-Length: " . $fileSize); # FLV file format header if($seekPos != 0) { print('FLV'); print(pack('C', 1)); print(pack('C', 1)); print(pack('N', 9)); print(pack('N', 9)); } How to do such thing?

  Read the article

• Securely using exec with PHP to run ffmpeg

  - by Venkat D.

  I would like to run ffmpeg from PHP for video encoding purposes. I was thinking of using the exec or passthru commands. However, I have been warned that enabling these functions is a security risk. In the words of my support staff: The directive 'disable_functions' is used to disable any functions that allow the execution of system commands. This is for more security of the server. These PHP functions can be used to crack the server if not used properly. I'm guessing that if exec is enabled, then someone could (possibly) execute an arbitrary unix command. Does anyone know of a secure way to run ffmpeg from PHP? By the way, I'm on a dedicated server. Thanks ahead of time!

  Read the article

• Launch Activity with Intent Filter on Right Time

  - by user511853

  Hi. I want to launch my own media player application when I want to watch a video from Youtube. When I write android:scheme="http" and android:host="m.youtube.com" it is OK. But, it asks everywhere in m.youtube.com to open my app. So, it gets annoying. I tried to use pathPattern, pathPrefix and path to solve this but I didn't get ahead. All I want is clearly this: When the link is like "http://m.youtube.com/index?desktop_uri=%2F%gl=US#" the intent filter shouldn't launch my app. When the link is like "http://m.youtube.com/index?desktop_uri=%2F&gl=US#/watch?xl=xl_blazer&v=k3Cdqx1qFX8" my application should be launched. Is there anyone that can help me?

  Read the article

• Roundup of HTML 5 vulgarizations and ressources

  - by ximus

  Hi everyone, HTML 5 is going to change the game not just for developers but will also come into the lives of professionals of all trades have an online presence, and web amateurs. These people are not web professionals but HTML and Flash have both been an important part of their general culture of the web. Vulgarization: to make (a technical or abstruse work) easier to understand and more widely known; popularize. (credits to reference.com) What links do you know of vulgarizations of HTML 5 that can help friends, family and colleagues better understand these up and coming changes of the web. Resources on all HTML5 subjects welcome; Fonts, animation, audio, video, offline capabilities, ... Here is a good start: Scribd presentation on their adoption of HTML 5

  Read the article

• Roundup of HTML 5 vulgarizations and resources

  - by ximus

  Hi everyone, HTML 5 is going to change the game not just for developers but will also come into the lives of professionals of all trades have an online presence, and web amateurs. These people are not web professionals but HTML and Flash have both been an important part of their general culture of the web. Vulgarization: to make (a technical or abstruse work) easier to understand and more widely known; popularize. (credits to reference.com) What links do you know of vulgarizations of HTML 5 that can help friends, family and colleagues better understand these up and coming changes of the web. Resources on all HTML5 subjects welcome; Fonts, animation, audio, video, offline capabilities, ... Here is a good start: Scribd presentation on their adoption of HTML 5

  Read the article

• Creating an object in javascript pointing to a table row with an "id"

  - by Matt

  I'm having trouble finding information online for creating a object in javascript and pointing it to a id in the html. Here's what I have so far for the JavaScript: function countRecords() { headRow=new Object(); //point to specific id here? var rowCount = 0; The HTML: <table id="prodTable"> <tr><th colspan="8">Digital Cameras</th></tr> <tr id="titleRow"> <th>Model</th> <th>Manufacturer</th> <th>Resolution</th> <th>Zoom</th> <th>Media</th> <th>Video</th> <th>Microphone</th> </tr>

  Read the article

• How many real world developers are involved with the Demoscene?

  - by spoulson

  I grew up learning to code based on what I've experienced with the demoscene. It seems to be a pretty sparse subculture in the US. How many developers watch or participate in the scene? Teaser: If you haven't checked out the scene before, take a look at one of my favorites: Debris by Farbrausch. Watch on demoscene.tv or download the app (179k) and run it yourself. No video, all realtime rendering and audio. Think, a small group of guys wrote this for a competition on their free time.

  Read the article

• What is a good cms that is postgres compatible, open source and either php or python based?

  - by hackg

  Php or python Use and connect to our existing postgres databases open source / or very low license fees Common features of cms, with admin tools to help manage / moderate community have a large member base on very basic site where members provide us contact info and info about their professional characteristics. About to expand to build new community site (to migrate our member base to) where the users will be able to msg each other, post to forums, blog, share private group discussions, and members will be sent inivitations to earn compensation for their expertise. Profile pages, job postings, and video chat would be plus. Already have a team of admins savvy with web apps to help manage it but our developer resources are limited (3-4 programmers) and looking to save time in development as opposed to building our new site from scratch.

  Read the article

• Transparent control over WM Player ActiveX component in .NET

  - by FatDaemon

  I have a Windows media player activex component in my Form. On top of this WM player i have a picturebox with background color set to transparent. When i set an image for this picturebox , thought the image contains transparent areas it is displayed as black when the picturebox is above the WM player component. Where as if i place the PictureBox somewhere else in the form. The transparent area are rendered properly. So is there anyway that i can place a transparent image on top of a WM Player component. (hmm something like watermark may be). I want this picture to be displayed with may be 50% opacity when the video is playing in WM player control. Will GDI+ be of any use in this case?

  Read the article

• Detecting crosses in an image

  - by MrOrdinaire

  I am working on a program to detect the tips of a probing device and analyze the color change during probing. The input/output mechanisms are more or less in place. What I need now is the actual meat of the thing: detecting the tips. In the images below, the tips are at the center of the crosses. I thought of applying BFS to the images after some threshold'ing but was then stuck and didn't know how to proceed. I then turned to OpenCV after reading that it offers feature detection in images. However, I am overwhelmed by the vast amount of concepts and techniques utilized here and again, clueless about how to proceed. Am I looking at it the right way? Can you give me some pointers? Image extracted from short video Binary version with threshold set at 95

  Read the article

• Is there an off the shelf CMS that can be used as a back end for smartphone travel guide apps?

  - by eamonncarey

  I'm wondering if there's an off the shelf CMS available that is similar to something like Mobile Roadie - ie: it will allow you to create multiple versions of one application? I'm looking to develop some mobile travel guides for iPhone/Android/Blackberry etc, and rather than get a CMS built, I'd like to see if there's something out there is similar to Wordpress in that it will allow us to input text, images, Google Maps details, phone numbers, email addresses and potentially some audio/video content. If anyone knows of anything, I'd love to hear about it. Also, if you have any ideas regarding pricing, that would be extremely helpful! Thanks in advance for your assistance.

  Read the article

• Hyperlink (a href) with a pound sign at the end doesn't do anything in Firefox

  - by chiurox

  I have a link that is somewhat like this: <a href="------.html#video">Text</a> It works fine in IE but not in Firefox. In Firefox it shows the new URL on the address bar but doesn't update or change anything in terms of content. Somehow the "#" is causing Firefox to ignore updating the page. I tried using Javascript "window.location" and "window.location.href" and all sorts of other things but it still doesn't work. Does anyone have any idea how to fix it? Thanks!

  Read the article

• New to Android I want to know more about it

  - by Lavan

  Well,Hello Everyone.I'am just 14 years old.I want to be a part of Android's Development. But were do I start.What should I learn? What are necessary Qualification to be a Part of Android's Development. Things what I know Basic PHP, HTML, PhotoShop, Video Editing, Basic Security and Fraud related matters, Some Microsoft Office Tools, Maya(Modelling only), Web Development, Dreamweaver, Blogging and Pawno (For Game Scripts..C Based Language) I hope that's all. I do things (for programming)without knowing about the basics it has. I feel difficult to understand the guides in android.com . I want a Step by Step guide. Thank you, Lavan

  Read the article

• Confused with objects in Ruby

  - by David

  Ruby Newbie here, I understand that everything is an object in Ruby, one thing that I wasn't sure about was understanding Variables. Variables basically give reference to objects (correct me if I'm wrong). During an instructional video, the teacher did a demonstration which went as below: (irb) a = 100 ==> 100 b = a ==> 100 b ==> 100 This part I get, makes total sense. Then he did a = 50 ==> 50 b ==> 100 If B is supposed to point to what a was set which was a 100, why does b still point to 100 if a has now been set as 50?

  Read the article

• In DirectShow, what determines the graph source?

  - by Seva Alekseyev

  Hi all, I have two machines - A (XP SP2) and B (Win7). Machine B has trouble playing OGM files - enabling subtitles causes a crash in the player. Investigation shows that the DirectShow graphs are quite different. On A, the source is a file source, which produces a stream of subtype OGG, which goes into "Ogg Splitter". On B, the source is an instance of Haali Media Splitter, which produces video, audio, and subtitles as separate streams. Machine A has Haali splitter installed as well, but it is not invoked somehow. Question - what determines the source filter? Is there a file type to preferred source mapping, or does the system load and ask all suitable filters if they would take this file? On machine A, the merit of Haali splitter is higher than that of File source, so it's probably not about relative merits.

  Read the article

• Recieve and forward all packets to another port

  - by question

  Debian 5, iptables Server N1 Some video-streaming server without external IP. Server N2 Debian server with ip 1.1.1.1. Server N1 is configured to send videostream to 1.1.1.1:1111. How to forward all recieved packages from 1.1.1.1:1111 to another port on the same server, for example to 1.1.1.1:2222? Something like that? echo 1 > /proc/sys/net/ipv4/ip_forward iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 1111 -j REDIRECT --to-port 2222

  Read the article

• Is pthread_spin_trylock safe inside of sigsegv handler of multithreaded application?

  - by TWMouton

  I am trying to implement a handler that on SIGSEGV will collect some information such as process-id, thread-id and a backtrace and write this information to a file/pipe/socket. The problem lies in that there is the (probably pretty high) possibility that if one thread experienced a SIGSEGV that the others will shortly follow. If two threads happen to make it to the bit of code where they're writing their report out at the same time then they'll interleave their writing (to the same file). I know that I should only be using async-signal-safe functions as detailed in signal(7) I also have seen at least two cases here and video linked in top answer here where others have used pthread_spin_trylock to get around this problem. Is this a safe way to prevent the above problem?

  Read the article

< Previous Page | 471 472 473 474 475 476 477 478 479 480 481 482  | Next Page >