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  • Formula for Live Video Streaming Bitrate

    - by MD
    I am simply looking for the formula that should be used here. All the results I've found base "finding the bitrate" off of already existing video. I'm talking about LIVE streaming. (indeterminate length) So, I know some basic parts of it, but I just need to know if I'm right or missing anything. For Kbps: Resolution * Framerate / 1024 Is it really that simple? Audio would be a separate element for our purposes here. Am I missing anything from this formula? (Coming up with a proposal of what amount of bandwidth would be required, relative to possible resolution options, so I just need to be sure that I'm not missing anything or inaccurate about it)

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  • Is it possible to record a screen-video from a VNC server?

    - by nikie
    I have a computer that's running VNC server. I would like to record a video of what's going on on this computer, if possible without installing additional software on that computer. Is there a program that can connect to the VNC server port and instead of displaying the screen save it to an (e.g. AVI) video file? Background: One of our customers sometimes has problems with the software he bought from us when he's performing a complex procedure. To help him, we offered that someone (a service technician or programmer) watches what he's doing during that procedure to find out if he's doing something wrong or if there's a bug in the software. Currently, this is done live via VNC. That has a few disadvantages: The service technician has to be in the office at the time. As the customers are in different time zones, that can be in the middle of the night. If the service technician forgets something or doesn't notice something, it's lost. There's no way to see what happened again. Only a single computer can be watched by one service technician at a time. I know I could install normal screen-grab software on the computer, but we're talking about an embedded system with limited RAM, CPU, HDD space, so installing something new is not an easy decision. And VNC is already there. I could of course open a VNC client on some office PC and capture that PC's screen, but I can only record one remote computer that way. I often have to watch up to 8 screens in parallel. (And I don't think that screen-grabbing VNC would improve image quality, either.)

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  • Convert .3GP and .3G2 Files to AVI / MPEG for Free

    - by DigitalGeekery
    3GP and .3G2 are common video capture formats used on many mobile phones, but they may not be supported by your favorite media player. Today we’ll show you a quick and easy way to convert those files to AVI or MPG format with the free Windows application, Pazera Free 3GP to AVI Converter. Download the Pazera Free 3GP to AVI Converter. You’ll have to unzip the download folder, but there is no need to install the application. Just double-click the 3gptoavi.exe file to run the application. To add your 3GP or 3G2 files to the queue to be converted, click on the Add files  button at the top left. Browse for your file, and click Open.   Your video will be added to the Queue. You can add multiple files to the queue and convert them all at one time.   Most users will find it preferable to use one of the pre-configured profiles for their conversion settings. To load a profile, choose one from the Profile drop down list and then click the Load button. You will see the profile update the settings in the panels at the bottom of the application. We tested Pazera Free 3GP to AVI Converter with 3GP files recorded on a Motorola Droid, and found the AVI H.264 Very High Q. profile to return the best results for AVI output, and the MPG – DVD NTSC: MPEG-2 the best results for MPG output. Other profiles produced smaller file sizes, but at a cost of reduced quality video output.   More advanced users may tweak video and audio settings to their liking in the lower panels. Click on the AVI button under Output file format / Video settings to adjust settings AVI… Or the MPG button to adjust the settings for MPG output. By default, the converted file will be output to the same location as the input directory. You can change it by clicking the text box input radio button and browsing for a different folder. When you’ve chosen your settings, click Convert to begin the conversion process.   A conversion output box will open and display the progress. When finished, click Close. Now you’re ready to enjoy your video in your favorite media player. Pazera Free 3GP to AVI Converter isn’t the most robust media conversion tool, but it does what it is intended to do. It handles the task of 3GP to AVI / MPG conversion very well. It’s easy enough for the beginner to manage without much trouble, but also has enough options to please more experienced users. Download Pazera Free 3GP to AVI Converter Similar Articles Productive Geek Tips How To Convert Video Files to MP3 with VLCEasily Change Audio File Formats with XRECODEConvert PDF Files to Word Documents and Other FormatsConvert Video and Remove Commercials in Windows 7 Media Center with MCEBuddy 1.1Compress Large Video Files with DivX / Xvid and AutoGK TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Install, Remove and HIDE Fonts in Windows 7 Need Help with Your Home Network? Awesome Lyrics Finder for Winamp & Windows Media Player Download Videos from Hulu Pixels invade Manhattan Convert PDF files to ePub to read on your iPad

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  • Opera 12 est arrivé, capture vidéo en HTML5 et accélération graphique pour tout le navigateur

    Opera 12 est arrivé capture vidéo en HTML5 et accélération graphique pour tout le navigateur Edit de la partie sur WebGL Opera 12 est de sortie. On passera rapidement sur la possibilité de customiser plus facilement le navigateur et on soulignera plutôt une utilisation expérimentale de l'accélération matérielle pour le rendu des pages web (et pas simplement les animations) et même pour l'affichage de son UI. Les deux pour un surf et un fonctionnement beaucoup plus rapides. Cette nouvelle fonctionnalité doit être activée en mettant à 1 le paramètre opera:config#UserPrefs|EnableHardwareAcceleration [IMG]http://ftp-developpez.c...

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  • Set and Verify the Retention Value for Change Data Capture

    - by AllenMWhite
    Last summer I set up Change Data Capture for a client to track changes to their application database to apply those changes to their data warehouse. The client had some issues a short while back and felt they needed to increase the retention period from the default 3 days to 5 days. I ran this query to make that change: sp_cdc_change_job @job_type='cleanup', @retention=7200 The value 7200 represents the number of minutes in a period of 5 days. All was well, but they recently asked how they can verify...(read more)

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  • Set and Verify the Retention Value for Change Data Capture

    - by AllenMWhite
    Last summer I set up Change Data Capture for a client to track changes to their application database to apply those changes to their data warehouse. The client had some issues a short while back and felt they needed to increase the retention period from the default 3 days to 5 days. I ran this query to make that change: sp_cdc_change_job @job_type='cleanup', @retention=7200 The value 7200 represents the number of minutes in a period of 5 days. All was well, but they recently asked how they can verify...(read more)

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  • lead capture apps

    - by Steve
    I'd like to build a lead capture website, where a visitor is required to enter their name and email address in order to receive a free report for download. Do you know of an app which will let me store captured information in a database, and present the download link to them after registering? I guess this can all be accomplished using a contact form script with database integration and jquery confirmation message.

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  • Change Data Capture - SQL Server 2008

    Change Data Capture (CDC) records DML operations performed on SQL tables and makes records available with information regarding what changed and when the change happened in a simple way. Compare and sync databases with SQL Compare“SQL Compare is fast, extremely easy to use, full-featured and affordable. I wouldn't bother messing around with anything else.” Adam Machanic, SQL Server MVP. Download a 14-day free trial.

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  • Overlay bitmap on live video

    - by sijith
    Hi i want to Overlay bitmap on live video. Iam trying to do this with the directshow sample. I edited PlayCapMonker sample and added some functions to enable this. i did this with the procedure explained in below link http://www.ureader.com/msg/1471251.aspx Now i am gettting errors Error 2 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int Error 3 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int Error 5 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int Error 6 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int Error 8 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int Error 9 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int Error 21 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int Error 22 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int Error 26 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int Error 27 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int Error 36 error C2228: left of '.m_alpha' must have class/struct/union Error 38 error C2227: left of '-SetAlphaBitmap' must point to class/struct/union/generic type Error 7 error C2146: syntax error : missing ';' before identifier 'Pool' Error 4 error C2146: syntax error : missing ';' before identifier 'Format' c:\Program Files\Microsoft Platform SDK\include\Vmr9.h 368 PlayCapMoniker Error 1 error C2143: syntax error : missing ';' before '' Error 20 error C2143: syntax error : missing ';' before '' Error 25 error C2143: syntax error : missing ';' before '*' Error 30 error C2065: 'g_pMixerBitmap' : undeclared identifier Error 33 error C2065: 'g_pMixerBitmap' : undeclared identifier Error 37 error C2065: 'g_pMixerBitmap' : undeclared identifier Error 31 error C2065: 'g_hbm' : undeclared identifier Error 32 error C2065: 'g_hbm' : undeclared identifier Error 35 error C2065: 'config' : undeclared identifier Error 10 error C2061: syntax error : identifier 'IDirect3DSurface9' Error 11 error C2061: syntax error : identifier 'IDirect3DSurface9' Error 12 error C2061: syntax error : identifier 'IDirect3DSurface9' Error 13 error C2061: syntax error : identifier 'IDirect3DSurface9' Error 16 error C2061: syntax error : identifier 'IDirect3DSurface9' Error 19 error C2061: syntax error : identifier 'IDirect3DSurface9' Error 23 error C2061: syntax error : identifier 'IDirect3DSurface9' Error 24 error C2061: syntax error : identifier 'IDirect3DSurface9' Error 28 error C2061: syntax error : identifier 'IDirect3DSurface9' Error 29 error C2061: syntax error : identifier 'IDirect3DSurface9' Error 14 error C2061: syntax error : identifier 'IDirect3DDevice9' Error 15 error C2061: syntax error : identifier 'IDirect3DDevice9' Error 17 error C2061: syntax error : identifier 'IDirect3DDevice9' Error 18 error C2061: syntax error : identifier 'IDirect3DDevice9' Error 34 error C2039: 'pDDS' : is not a member of '_VMR9AlphaBitmap' SDK\Samples\Multimedia\DirectShow\Capture\PlayCapMoniker\PlayCapMoniker.cpp 263 PlayCapMoniker

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  • video streaming over http in blackberry

    - by ysnky
    hi all, while i was searching video player over http, i found the article which is located at this url; http://www.blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800332/1089414/Stream ing_media_-_Start_to_finish.html?nodeid=2456737&ve rnum=0 i can run by adding ";deviceside=true" at the end of url. it works fine in the jde4.5 simulator. it gets 3gp videos from my local server. i tested with 580kb files and works fine. but when i get the same file from my server (not local, real server) i have problems with big files (e.g 580 kb). it plays 180kb files (but sometimes it does not play this file either) but not plays 580kb file. and also i deployed my application to my 9000 device it sometimes plays small file (180kb) but never plays big file (580kb). why it plays if it is on my local file, not play in real world? i ve stucked for days. hope you help me. and also the code at the url given below is not work, the only code i ve found is the above. blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800332/1089414/How_To _-_Play_video_within_a_BlackBerry_smartphone_appli cation.html?nodeid=1383173&vernum=0 btw, there is no method such as resize(long param) of CircularByteBuffer class. so i comment relavent line (buffer.resize(buffer.getSize() + (buffer.getSize() * percent / 100)); as shown below. public void increaseBufferCapacity(int percent) { if(percent < 0){ log(0, "FAILED! SP.setBufferCapacity() - " + percent); throw new IllegalArgumentException("Increase factor must be positive.."); } synchronized(readLock){ synchronized(connectionLock){ synchronized(userSeekLock){ synchronized(mediaIStream){ log(0, "SP.setBufferCapacity() - " + percent); //buffer.resize(buffer.getSize() + (buffer.getSize() * percent / 100)); this.bufferCapacity = buffer.getSize(); } } } } } thanks in advance.

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  • Video-codec rater by image comparison algorithm?

    - by Andreas Hornig
    Hi, perhaps anyone knows if this is possible. comparing image quality is almost imposible to describe without subjective influences. When someone rates an image quality as good there is at least one person, that doesn't think so. human preferences are always different. So, I would like to know if there is away to "rate" the image quality by an algorithm that compares the original image to the produced one in following issues colour change(difference pixel by pixel blur rate artifacts and macroblocking the first one would be the easiest one because you could check just the diffeence in colours and can give 3 values in +- of each hex-value both last once I don't know if this is possible, but the blocking could be detected by edge-finding. and the king's quest would be to do that for more then just one image, because video is done with several frames. perhaps you expert programmers could tell me, if such an automated algo can be done to bring some objective measurement divice into rating image quality. this could perhaps calm down some h.264 is better than x264 and better than vp8 and blaaah people :) Andreas 1st posted here http://www.hdtvtotal.com/index.php?name=PNphpBB2&file=viewtopic&p=9705

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  • is it possible to display video information from an rtsp stream in an android app UI

    - by Joseph Cheung
    I have managed to get a working video player that can stream rtsp links, however im not sure how to display the videos current time position in the UI, i have used the getDuration and getCurrentPosition calls, stored this information in a string and tried to display it in the UI but it doesnt seem to work in main.xml: TextView android:id="@+id/player" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="1px" android:text="@string/cpos" / in strings.xml: string name="cpos""" /string in Player.java private void playVideo(String url) { try { media.setEnabled(false); if (player == null) { player = new MediaPlayer(); player.setScreenOnWhilePlaying(true); } else { player.stop(); player.reset(); } player.setDataSource(url); player.getCurrentPosition(); player.setDisplay(holder); player.setAudioStreamType(AudioManager.STREAM_MUSIC); player.setOnPreparedListener(this); player.prepareAsync(); player.setOnBufferingUpdateListener(this); player.setOnCompletionListener(this); } catch (Throwable t) { Log.e(TAG, "Exception in media prep", t); goBlooey(t); try { try { player.prepare(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } Log.v(TAG, "Duration: === " + player.getDuration()); } catch (IllegalStateException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } private Runnable onEverySecond = new Runnable() { public void run() { if (lastActionTime 0 && SystemClock.elapsedRealtime() - lastActionTime 3000) { clearPanels(false); } if (player != null) { timeline.setProgress(player.getCurrentPosition()); //stores getCurrentPosition as a string cpos = String.valueOf(player.getCurrentPosition()); System.out.print(cpos); } if (player != null) { timeline.setProgress(player.getDuration()); //stores getDuration as a string cdur = String.valueOf(player.getDuration()); System.out.print(cdur); } if (!isPaused) { surface.postDelayed(onEverySecond, 1000); } } };

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  • How to display video on html page in firefox

    - by Manish
    I did looked at this question, but the asker didn't got any reply. Still, I'm giving it a try. I want to embed a video file on a html page. The code works fine on IE but doesn't work on firefox. The code: <object id="WMPlay" width="640" height="480" classid="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=5,1,52,70" standby="Loading Microsoft Windows Media Player components..." type="application/x-oleobject"> <param name="URL" value="XYZ.wma" /> <param name="AutoStart" value="false" /> <embed name="WMplay" width="640" height="480" type="application/x-mplayer2" pluginspage="http://www.microsoft.com/Windows/Downloads/Contents/Products/MediaPlayer/" src="XYZ.wma" allowchangedisplaysize="True" showcontrols="1" autostart="false" showdisplay="1" showstatusbar="1"> </embed> </object> Can someone please tell what am I missing? Or a better solution..something which is browser independent... :)

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  • XML file does't load when HTML5 video plays

    - by DD77
    I should be able to loads the related XML file and displays the content of the XML file as the video plays back. What am I missing? DEMO JAVSCRIPT // properties var XML_PATH = "http://www.adjustyourset.tv/interview/cuepoints.xml"; var video_width; var video_height; var videos_array=new Array(); // init the application function init() { // call loadXML function loadXML(); } // XML loading function loadXML() { $.ajax({ type: "GET", url: XML_PATH, dataType: "xml", success: function onXMLloaded(xml) { // set cuepoints find("cuepoints"); find("cuepoints"); // loop for each cuepoint $(xml).find('cuepoint').each(function loopingItems(value) { // create an object var obj={timeStamp:$(this).find("timeStamp").text(), desc:$(this).find("desc").text(), thumbLink:$(this).find("thumbLink").text(), price:$(this).find("price").text()}; videos_array.push(obj); // append <ul> and timeStamp $("#mycustomscroll").append('<ul>'); $("#mycustomscroll").append('<a><li id="item">Time Stamp:'+obj.timeStamp+'</li></a>'); }); // close </ul> $("#mycustomscroll").append('</ul>'); // append li tags $("#leftcolumn").append('<li src="'+videos_array[0].desc+'"> <p src="'+videos_array[0].thumbLink+'" /></li>'); // append description $("#price").append(videos_array[0].price); // call addListeners function addListeners(); } }); }

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  • Sync video play over network

    - by Nemesis
    Hi, I have made a media player that plays basically anything that's scheduled to it via a text file. The player can also play the exact same clip on multiple machines(PC's). The problem is the syncing. The same video starts playing on each of the machines, but they are out by about 400ms, which looks crap and if there's sound it's even worse. What I do at the moment is: One machine is set up as the master and all other machines are set up as slaves. The master decides what item will be played. It waits for a message from each of the slaves, once all slaves are connected (or after the timeout), it broadcasts the item id of the file that needs to be played. All machines then start playing that file. What I also tried: I thought that the file loading time might be the major driving factor in the sync mismatch, so I chankged the code to do the following. The master still decides what file to play. It waits for the connect message from each slave (or timeout) and transmits the item id of the file to play. All machines start playing that file but pauses it immediately. The master then again waits for a ready message from each of the slaves. As soon as all slaves responded the master sends a play message to all slaves. All machines then continue the file. This unfortunately did not improve the problem. I am now pretty sure the sync mismatch is due to network delay. How can I compensate for this? Or maybe determine the delay to each slave? All network comms are done with winsock. Any thoughts or ideas is much appreciated.

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  • BluRay audio/video stuttering with PowerDVD 11, WinDVD 11 Pro, etc? Xonar/Auzen HD audio option?

    - by jrista
    I recently upgraded my Windows 7 MediaCenter HTPC due to a motherboard failure (really old motherboard and cpu, it was on its last legs.) I chose to upgrade to an i5 system with everything built into the motherboard. I did my due diligence, researched, and found some hardware that was within my budget. I ended up with: Core i5 2500K (3.3Ghz) Corsair XMS3 2x2Gb DDR3 (4Gb) ASUS P8H 61-M LE/CSM MicroCenter 64Gb SSD (Previous BluRay player, forget the brand) The system is pretty awesome, and plays everything I have perfectly. I almost went with an Atom solution, however there have been numerous notes that they do not play NetFlix Instant Watch well...and I am a heavy Netflix IW user. High definition BluRay rips work well, although they usually contain lower audio quality than the BluRay's they were ripped from. The real problem I am encountering is playing back BluRay video from discs. For some reason, I am encountering rather terrible stuttering problems with both the audio and video. The stuttering is synchronous in both, and occurs at seemingly random intervals. I've used PowerDVD 9, PowerDVD 11 trial, and WinDVD 11 Pro trial. All three have stuttering problems, although PowerDVD 11 seems to have the least. Watching system resource usage, CPU load is never above 20%, and memory usage tends to be a constant 1/3rd the total available system memory. When playback is fine, its superb...the video is crystal clear. The audio quality is ok, certainly not what I would expect from a BluRay disc. I did some research, and it seems that playing BluRay from a PC causes a downsampling of the audio? I am curious if the audio is my primary problem here, the cause of the stuttering I am encountering? When stuttering occurs, the audio gets REALLY bad, while the video just pauses momentarily every second until for whatever reason everything picks up and runs fine (usually after a few seconds to a couple minutes.) The audio chipset is a Realtek HD ALC887 8-channel, supposedly designed to support BluRay playback. Has anyone encountered any issues like this playing back bluray discs on a PC (namely with PowerDVD...WinDVD was FAR worse, and seemed to have real trouble even reading the discs, and I have no interest in fiddling with it further.) Is there any reason to suspect the video decoding as the problem?(Given how bad the audio gets during a stutter, and how clean the video remains, I am inclined to think the issue boils down to audio.) Is it even remotely possible that the motherboard, cpu, or ram are causing the stuttering (all three are pretty blazing fast...faster than the hardware that I replaced, which seemed to play BluRay fine with PowerDVD 9.) I've read a bit about the Asus Xonar HDAV 1.3 and the Auzen X-Fi HomeTheater HD home theater hi-fi audio cards. Seems they are the only way to get true full-quality, uncompressed BluRay audio bitstreaming over HDMI on a PC. None of the usual suspects seem to have these cards in stock, however. Are these cards worth getting? Are they even still available, or have they been discontinued (if so, that would indeed be sad...they sound simply fantastic.)

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  • Adobe-Flash-plugin freezes when skipping ahead

    - by piedro
    I am using Firefox 7 and the new official Adobe Flash 64-bit plugin from the Ubuntu Partner repository. It's the adobe-flash package. It works nicely on the first look but when I try to skip ahead in any YouTube video (by clicking on the video progress bar) sound will go on but the video simply freezes at the position it was just before skipping. This is really annoying because I really don't want to watch every video full length. Now maybe there's cleanup work to do? I removed every Flash-related package from the package manager. Maybe it's Firefox? I couldn't find any hint. Maybe it's the video manager (display manager)? I am using KDE on an Ubuntu Natty install. I also enabled hardware acceleration with libdvpau1: sudo bash -c "echo 'EnableLinuxHWVideoDecode=1' >> /etc/adobe/mms.cfg" (this seems to have no effect at all ...) Ubuntu Natty 64-bit, Firefox 7, Flash 11.01 )

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  • Lost the config of my monitor once I connected it to a KVM switch.

    - by jfmessier
    I used to have a monitor (Acer 20", AL2017) connected to the external video port of my laptop. Everything was great and I could get a rather high resolution available when setting it under Ubuntu (all versions). But since I connected it to a KVM, the monitor is no more recognized, and I cannot go beyond 1024x768. My video adapter is an Intel chipset 9xx from an older Pentium Core 2 Duo laptop. The same monitor, using another video chipset (Intel 82G33/G31 rev 02) is properly detected through the switch box. Looks to me like the video chipset is not the best, and I can live with this. I see that I have no xorg.conf, and I understand that I would need to generate one so I can then use it to force the available modes on the X system. How can I generate the xorg.conf file for my Intel video chip, so I can use it then ? Merci :-)

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  • Splitting/Merging 3gp files using a java library

    - by user141146
    Hi, I'm wondering if there's a java library out there that can manipulate 3gp files. Mostly I'm interested in splitting or merging existing video files. I've looked at JMF (java media framework), but it doesn't support 3gp…and FFmpeg looks promising, but it's not clear that the library allows splitting/merging of existing files. Does such a library exist?

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  • Linux, how to capture screen, and simulate mouse movements.

    - by 2di
    Hi All I need to capture screen (as print screen) in the way so I can access pixel color data, to do some image recognition, after that I will need to generate mouse events on the screen such as left click, drag and drop (moving mouse while button is pressed, and then release it). Once its done, image will be deleted. Note: I need to capture whole screen everything that user can see, and I need to simulate clicks outside window of my program (if it makes any difference) Spec: Linux ubuntu Language: C++ Performance is not very important,"print screen" function will be executed once every ~10 sec. Duration of the process can be up to 24 hours so method needs to be stable and memory leaks free (as usuall :) I was able to do in windows with win GDI and some windows events, but I'ev no idea how to do it in Linux. Thanks a lot

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