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• How can I change resolution of "my video" in Skype?

  - by koushik

  I have a logitech Quickcam Pro 9000 connected to my ubuntu desktop and it works fine with Skype. However, Skype inputs and sends my video at the native (for the webcam I think) resolution of 1600 x 1200. I can confirm that the camera supports a wide variety of resolutions starting from 160 x 120 upto 1600 x 1200 (including e.g., 320 x 240, 352 x 288) using cheese. I can select these resolutions and see the output is appropriately scaled. Also, I don't see any improvements in smoothness of motion in the captured video so I suspect the original 1600 x 1200 is scaled down in the path somewhere. Is it possible to somehow to enable this scaling capability towards Skype?

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• What are good options for hosting video that give you privacy and control (not youtube or vimeo)?

  - by Rezen

  I have used http://www.longtailvideo.com/bits-on-the-run,http://www.influxis.com/, wistia for video hosting. Wistia didn't allow the finer control that we wanted to have. Influxis doesn't have the features that Bits on the Run has but platform usage for BOTR gets expensive. I was thinking of moving the videos to Amazon CDN. What are your thoughts and experiences with video hosting and are there any recommendations? Videos will be privately streamed to 100's of doctors offices.

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• Player rewards in games where you normally have nothing to purchase

  - by PeterK

  In many games there are rewards such as gold coins, points, etc. When these rewards can be used to purchase in-game items, it motivates the player to keep playing. Let's say we have an online game, poker, Yatzy etc. What type of reward would keep the players playing if there are few in-game items available to buy, or none at all? What I am looking for is a reward system that entices the players to play more in a game environment where there isn't that much to purchase. For example, there isn't much to buy in a poker or Yatzy game with the gold you win. I guess having some titles that are added to the userid is one way, or maybe purchasing a logo for the id... A leaderboard is another. Any thoughts on this?

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• Dual 9500GT video cards, one works

  - by bossDub

  I have two video cards, both are PCIe 512MB Nvidia 9500GTs. One is an Evga and the other is another brand. If I put them both in, the one in the top slot will work (either card). The one in the lower slot says Code 12, not enough resources to use this device. I've tried disabling Firewire and a few other things in an attempt to get more "resources". Intel DP45SG motherboard. 4G Ram. 64bit Vista. Q8200 CPU. I do not have the SLI connector.

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• Do I have a bad video card?

  - by zooropa

  I think this is the right spot to post this question. Please don't flame me if it isn't. My work computer is a Dell Prescision M6400 laptop. I use the VGA output to a second monitor. There is something wrong with my second monitor's output. Here is a screenshot of my desktop. You can see fragments of the right side of a Windows File Explorer window in the image. Is this a bad video card?

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• Increase Volume of an MKV Video from Linux Terminal

  - by The How-To Geek

  I've got a large amount of .MKV video files which seem to all play at a very low volume - I end up having to turn the TV up all the way to hear them, which is really irritating when I switch to another channel and wake the dead because it's so loud. What I'm looking for is a command-line method to increase the volume (so I can run it on all of them quickly) that would hopefully work regardless of the audio codec in use in the particular file. (I don't mind hard-coding the output audio though). For reference, I'm using Ubuntu 9.04 on my server, and the files are being played back with Boxee on a Mac Mini, but the volume problem is the same on Windows too.

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• Increase Volume of an MKV Video from Linux Terminal

  - by The How-To Geek

  I've got a large amount of .MKV video files which seem to all play at a very low volume - I end up having to turn the TV up all the way to hear them, which is really irritating when I switch to another channel and wake the dead because it's so loud. What I'm looking for is a command-line method to increase the volume (so I can run it on all of them quickly) that would hopefully work regardless of the audio codec in use in the particular file. (I don't mind hard-coding the output audio though). For reference, I'm using Ubuntu 9.04 on my server, and the files are being played back with Boxee on a Mac Mini, but the volume problem is the same on Windows too.

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• How can I reorder parts of a video file

  - by sandeep

  I have download a mkv movie file which gave me 3 files suffixed .001, .002, and .003. When i join them together with different tools like winrar, 7zip, hjsplit, concatenated file shows only last 40 min/1.22 hrs of the total length of the movie. If I play all the (.001, .002, .003) parts with vlc player, I can see that .003 is the first part of the video and .001 is the last part. Can anyone tell me how can join this parts of movie with correct position or how I can convert .003 file into .001 file.

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• Best advice for game programmer who wants to go indie?

  - by JStriedinger

  So. I'm working right now as an intern in a mobile game development company. I've used Unity quite a lot for 1 year now but, that's about all the experience I have with game design/development. Here's the things. I wanna go indie, the main reason is for fun, I really enjoy games and by making indie games I believe I can let my imagination fly and make personal personal stuff. Unfortunately I...I just don't know where to start! I'm interestes in making mobile and web games so what...should I download Stencyl? Construct 2?...XCODE for iOS, maybe a great plugin for Unity would be fine? What whould be your single best advice for someone like me? (programmer and interestes in design) :)

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• Ubuntu 12.04 not showing video after upgrade from 11

  - by user52224

  After upgrading to Ubuntu 12.04 VLC or any other media player that plays .mov, .mp4, .wmv etc. is playing with a blank screen but audio is fine. It was working on 11 before the upgrade. Any suggestions for a fix? Flash based video (e.g. youtube) works fine. After some searching I tried installing Ubuntu restricted extras - suspecting a codecs issue, but this has no effect. Any suggestions? Thanks.

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• Are there RTMFP tutorial for P2P video streaming ?

  - by xRobot

  Are there RTMFP tutorial for P2P video streaming ?

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• Video Editing Software Recommendation

  - by Lee

  I want to get some recommendations for Video Editing software. I need the software to do the following: Encode to multiple formats, .avi, .wma, DVD format, etc. Most of all we need to encode a file to .flv format. Ability to burn the file to DVD. Ability to perform video editing on the file. Easy-to-use. Specially, for the beginning video editor.

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• android: How to play YouTube video on emulator

  - by Kaillash

  Could someone help me in 1. is this possible to play video from YouTube on emulator using YouTube video link (like:http://www.youtube.com/watch?v=T1Wgp3mLa_E) ? If not, then why? 2.If yes then how ? I tried to play YouTube video using VideoView but got "Command PLAYER_INIT completed with an error or info PVMFErrCorrupt" message through logcat command.

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• Youtube video processing on iPhone

  - by Chonch

  Hey In my iPhone app, I want to load a video from youtube, perform some basic image processing on it and display it to the user. I am using openCV to do my image processing, and I know I can use it for grabbing all of the frames from the video as well (cvRetrieveFrame). My only problem is that cvRetrieveFrame expects to get its source of type CvCapture* which can be created either by a camera source or by a file name. How can I set a youtube video file as the source for CvCapture*? Thanks,

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• live video chat using PHP JQUERY AJAX

  - by Bharanikumar

  PLZ REFER SOME OPEN SOURCE NAME FOR LIVE VIDEO CHAT USING PHP+JQUERY+AJAXL , THANKS

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• iPad/iPhone HTML5 video loading

  - by mrollinsiv

  I'm trying to load on the fly on the iPad/iPhone and notice that I cannot place a div above this. I put the overlay in the html so that it's generated on page load and not added via javascript and the video when its created is absolutely positioned below this element. This works on a PC, I'm wondering if since it was created via js that the iPhone OS is overriding the z-index and forcing to the top? Also is there a way to override the default "cannot play icon", the one with the slash, and show a loading animation instead? This would solve my issue via another route. My last option would be to loaded all the video tags via js on page load and have them layered on top of each other for the iPad/iPhone? Since the iPhone OS won't load any video until requested would this work? I also am having an issue with the iPhone and showing the "poster" attribute that is set on the video tag.

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• HTML5 Video Volume

  - by Mikushi

  Hi, i'm currently working on a HTML5 video player, i got it working fully everywhere, except on the freakin iPad. Basically, i can control everything, except the sound, i have a mute button, it works fine on Google Chrome, FF3.6 and Safari on Mac OS, but on the iPad no matter what value i put in video.volume, there is no change happening. Anybody got it working properly? Code: <video src="video_url" width="608" height="476" autobuffer="autobuffer" id="html5-player" preload> Your browser doesn't support HTML5. </video var muted = false; $j('.player-mute').click(function(){ if(muted) { videoPlayer.volume = 1; muted = false; } else { videoPlayer.volume = 0; muted = true; } });

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• Are there any ball tracking algorithms/patterns around in game programming

  - by user214626

  Hello, I am a newbie to game programming,I would need the suggestions and help of the wonderful people around here. I have set of players, and a ball, the players can kick the ball around the ground (not yet a football game, neither a foosball game too ).Are there any algorithms/ patterns for addressing the problems with tracking the ball and taking decisions, Is that too much to ask.What I was looking at is something like a collision detection algorithm for the common problem of 2 objects interacting with one another.

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• How to rip AVI from VOB using ffmpeg

  - by Linux Jedi

  I am trying to convert a VOB to an AVI. I have ripped an AVI from this VOB before using ffmpeg, but for some reason it's not working this time. This is what I tried: ffmpeg -sameq -acodec copy -i VTS_01_2.VOB output.avi This is the output I get: FFmpeg version 0.6.1, Copyright (c) 2000-2010 the FFmpeg developers built on Dec 29 2010 18:02:10 with gcc 4.2.1 (Apple Inc. build 5664) configuration: libavutil 50.15. 1 / 50.15. 1 libavcodec 52.72. 2 / 52.72. 2 libavformat 52.64. 2 / 52.64. 2 libavdevice 52. 2. 0 / 52. 2. 0 libswscale 0.11. 0 / 0.11. 0 [mpeg2video @ 0x101014200]mpeg_decode_postinit() failure Last message repeated 6 times Input #0, mpeg, from 'VTS_01_2.VOB': Duration: 26:30:29.20, start: 140.171311, bitrate: 90 kb/s Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x480 [PAR 32:27 DAR 16:9], 9800 kb/s, 31.44 fps, 29.97 tbr, 90k tbn, 59.94 tbc Stream #0.1[0xa0]: Audio: pcm_s16be, 48000 Hz, 2 channels, s16, 1536 kb/s Output #0, avi, to 'output.avi': Metadata: ISFT : Lavf52.64.2 Stream #0.0: Video: mpeg4, yuv420p, 720x480 [PAR 32:27 DAR 16:9], q=2-31, 200 kb/s, 29.97 tbn, 29.97 tbc Stream #0.1: Audio: pcm_s16be, 48000 Hz, 2 channels, 1536 kb/s Stream mapping: Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 Could not write header for output file #0 (incorrect codec parameters ?)

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• Downloading Video on iPhone using SDK

  - by Vivek Navadia

  Hello All I would like to develop such iphone application that provides functionality to download viedo. i am doing some as below 1) Loading HTML content on web view 2) The loaded html content contains the video link (i.e http://test.com/test.mp4") 3) When i click on that it will play the video in native player. 4) but i would like to prevent this thing and start downloading video from that URL for example, if i click on link it should not open native video player, it should start downloading from that url and store somewhere on iphone (i.e document directory) is there any solution for same? Thanks Vivek

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• Windows-Mobile Directshow: Specifying bitrate/quality of a WMV video capture

  - by Landstander

  Hi- I'm stumped on this, and I'm really hoping someone could point me in the right direction. I'm currently capturing video in Windows Mobile and encoding it using the WMV 9 DMO (CLSID_CWMV9EncMediaObject). That all works well enough, but the output video's bitrate is too high, resulting in a video file that's much too large for my needs. Ultimately, my goal is to mimic the video settings that Microsoft's Camera Capture Dialog outputs in the "messaging" quality mode (64kbps) from my C++ code. Currently, my code's outputting a WMV file with a bitrate of 352kbps. The only example I could find of specifying the capture bitrate with a WMV9 DMO was this. The idea in that code was basically to use a propertybag to write a bitrate to a property of the DMO. Update: In windows mobile, the closest codec property I can find that seems to equate to the bitrate is "g_wszWMVCVBRQuality". Microsoft's documentation of this property is extremely confusing to me: It basically seems to say that a higher number equates to a higher quality, but it gives absolutely no explanation of the specifics for each number. When I attempt to set this property to value like "1" via a propertybag for the WMV9 DMO, I run into a -2147467259 (unknown) error. To summarize: What is the basic strategy to specify the bitrate/quality of a video being captured via directshow (wmv9) on a windows mobile platform? I've heard (or wondered about) the following methods: Use the propertybag to change the encoder DMO's property that corresponds to bitrate/quality (currently failing) Create your own custom transcoder/encoder to specify it. This seems unnecessary since the WMV encoder works well enough- it's just at too high a bitrate. The VIDEOINFOHEADER has a bitrate property, but I suspect that specifying new settings here will do nothing to alter the actual encoding process since I wouldn't think file attributes would come into play until after the encoding. Any suggestions? PS: I would post specific source code, but at this point it may confuse more than it helps since I'm floundering so much on how to do this. At this point, I'm just trying to validate the general strategy. THANKS!

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• Android Gallery (view) video (also thumbnail issues)

  - by Drew

  Currently we have a Gallery view to which we need to add thumbnails for images/video. How do we get the already generated thumbnails (the ones that the native Gallery app shows) if we already have the image's/video's content:// URI? (We are using Android 1.6, Video.Thumbnails does not exist)

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• Things one needs to know while writing a game engine

  - by Joe Barr

  I have been dabbling in game development as a hobby for a while now, and I cannot seam to quite get my games to sparkle at least a bit with some graphics. I have decided to write a simple test game engine that only focuses on the representation of graphics - shapes, textures and surfaces. While I have a few very simple game engines designed for my own games under my belt, I want to create a game engine that I can use to display and play with graphics. I'm going to do this in C++. Since this is my first time with a major engine, the engine in not going to focus on 3D graphics, it's going to be a mixture of isometric and 2D graphics. My previous engines have incorporated (been able to draw) or focused on simple flat (almost 2D) non impressive graphic designs and representations of: the player NPCs objects walls and surfaces textures Also, I had some basic AI and sometimes even sound. They also saved and loaded games. They didn't have a map editor or a level editor. Is this going to be a problem in the future? At this time I have to point out that some of my games didn't get finished because I was to lazy to write the few last levels. My question at this point would be: What are some things one should know if one wants write (develope) a better graphical game engine with all it's functions.

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• iPhone app: How to implement in-app purchased game levels

  - by Wonderflonium

  So, I understand that it's possible to set up in-app purchases for iPhone apps to purchase non-consumables like game levels. I understand the logic behind the purchase part, but what I don't understand is, how can I deliver the new game level. For example: I build an app that contains the first level and they purchase additional levels. Is it better to build all the other levels into the app and whenever they purchase the app, it unlocks it with a plist entry or something? That doesn't seem very update-able to me. Every time I come up with a new level, I'd have to update the app. So, what I don't understand then, is what is how do I package up a level and download it as a separate entity that can accessed by the game? Would the level just be some XML with images in a ZIP folder or something? How does the level get added to the game? What are best practices for this type of thing? I Googled and have found NOTHING about this. I'm a little bit confused by the concept and any help would be appreciated. I'm not looking for someone to write the game for me, I just need pointed in the right direction so I can develop it on my own.

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• HTML 5 video custom controls

  - by pygorex1

  Like many web developers I'm looking forward to streaming video that utilizes the new HTML 5 <video> tag. Browser support definitely isn't wide enough yet, so using a Flash/SWF fallback is a must. This got me thinking: in Flash it's possible to highly customize the playback controls (pause, play, stop, seek, volume, etc.) in HTML 5?. What options are there for customizing the glyphs, icons and colors of video controls? Is Javascript required? For instance the following page renders different controls depending on the browser - tested using FF3.5, Chrome and Safari: http://henriksjokvist.net/examples/html5-video/ It would be really awesome to customize and standardize controls across browsers and even match the Flash controls used by older browsers.

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