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  • Rendering trillions of "atoms" instead of polygons?

    - by Baring
    I just saw a video about what the publishers call the "next major step after the invention of 3D". According to the person speaking in it, they use a huge amount of atoms grouped into clouds instead of polygons, to reach a level of unlimited detail. They tried their best to make the video understandable for persons with no knowledge of any rendering techniques, and therefore or for other purposes left out all details of how their engine works. The level of detail in their video does look quite impressive to me. How is it possible to render scenes using custom atoms instead of polygons on current hardware? (Speed, memory-wise) If this is real, why has nobody else even thought about it so far? I'm, as an OpenGL developer, really baffled by this and would really like to hear what experts have to say. Therefore I also don't want this to look like a cheap advert and will include the link to the video only if requested, in the comments section.

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  • Embed Youtube in UIWebView behind transparent img. Wmode transparent and z-index doesn't work

    - by Allisone
    I'm using this code: - (void)embedYouTube:(NSString *)urlString frame:(CGRect)frame { NSString *embedHTML = @"\ <html><head>\ <style type=\"text/css\">\ body {\ background-color: black;\ }\ #container{\ position: relative;\ z-index:1;\ }\ #video,#videoc{\ position:absolute;\ z-index: 1;\ border: none;\ }\ #tv{\ background: transparent url(tv.png) no-repeat;\ width: 320px;\ height: 205px;\ position: absolute;\ top: 0;\ z-index: 999;\ }\ </style>\ </head><body style=\"margin:0\">\ <div id=\"tv\"></div>\ <object id=\"videoc\" width=\"240\" height=\"160\">\ <param name=\"movie\" value=\"%@\"></param>\ <param name=\"wmode\" value=\"transparent\"></param>\ <embed wmode=\"transparent\" id=\"video\" src=\"%@\" type=\"application/x-shockwave-flash\" \ width=\"240\" height=\"160\"></embed>\ </object>\ </body></html>"; NSString *path = [[NSBundle mainBundle] bundlePath]; NSURL *baseURL = [NSURL fileURLWithPath:path]; NSString *html = [NSString stringWithFormat:embedHTML, urlString,urlString]; UIWebView *videoView = [[UIWebView alloc] initWithFrame:frame]; [videoView loadHTMLString:html baseURL:baseURL]; [self.view addSubview:videoView]; [videoView release]; } Its the first time that I use UIWebView and the first time that I use video in iPhone. The video plays, so that's working BUT: I want to have an old school tv (round corners) in foreground with switches and so on. The tv is an image with transparent pixels in the middle, so that a video lying behind the tv will shine through as if the video would be shown on the tv. But first of all the video has a border that I can't remove and second it's always in the foreground. In Safari and in Firefox and Mac it's working. So is it an iPhone thing, could it be that it simply won't work on iPhone ? Or do I have some css/html typos ?

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  • Detecting which MCUs to connect on an incoming conference

    - by Fábio Batista
    Hello, SO. I'm working with the OCS UCCAPI, developing a custom OCS client. I'm currently having a hard time detecting what "kind" of Conference my client is being invited to. Using the Office Communicator client, I can start "IM conferences" (by inviting more than 1 person and selecting "start a IM conversation") or "video conferences" (by selecting more than 1 person and selecting "start a video call"). The Office Communicator client, on the invitees' end, starts correctly the appropriate session (just IM, just Video or IM+Video). However, when receiving the conference invite on my custom client, there's no data about the kind of session I'm being invited. I need this information, in order to make a decision whether or not to connect to the AV MCU and capture/show video. I've tried already: When handling _IUccSessionManagerEvents.OnIncomingSession, parse the RemoteSessionDescription property on the UccIncomingInvitationEvent object: no luck, the only data about the conference modality is an element on the XML about the IM being enabled or not (<im available="true"> or <im available="false">), but nothing about the session having video available or not. When handling _IUccConferenceSessionEvents.OnEnter, check the Media property on the UccConferenceSession. Don't work, all media types are present (MESSAGE, AUDIO, VIDEO, DATA e TELEPHONY), regardless of the type of conference I'm being invited. Also when handling _IUccConferenceSessionEvents.OnEnter, check the Entities collection on the UccConferenceView object, to check which MCUs are enabled for this conference. Don't work either, all MUCs are listed as available (IM, AV, DATA and CONTROL), regardless of the type of conference I'm being invited. I'm running out of ideas. Some references I'm using: http://msdn.microsoft.com/en-us/library/bb664307.aspx http://msdn.microsoft.com/en-us/library/dd170830.aspx Thanks a lot.

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  • Merging Passed Parameters

    - by Josh Crowder
    I have a two data arrays sent in from a form, one called transloaded and the other video which is the actual form for the model. I need to get [:video_encoded][:url] and save that to [:video][:flash_url] This is the passed arguments or transloaded, when I try and access [:transload][:results][:video_encode] I get nil. print params[:transload] { "assembly_id":"d59b4293b3d79d2ccd1948c02421c6a6", "status":"success", "uploads":{ "video":{ "name":"bbc_one.mp4", "mime":"video/mp4", "ext":"mp4", "size":601104, "meta":{ "width":720, "height":404, "video_fps":25, "video_bitrate":null, "video_format":"avc1", "video_codec":"ffh264", "audio_bitrate":"128k", "audio_codec":"faad", "duration":3.07, "device_vendor":null, "device_name":null, "device_software":null, "latitude":null, "longitude":null }, "url":"http://tmp.transloadit.com/" } }, "results":{ "video_encode":{ "name":"bbc_one.flv", "mime":"video/x-flv", "steps":["encode","export"], "ext":"flv", "size":388317, "meta":{ "width":480, "height":320, "video_fps":25, "video_bitrate":"512k", "video_format":"FLV1", "video_codec":"ffflv", "audio_bitrate":"64k", "audio_codec":"mp3", "duration":3.11, "device_vendor":null, "device_name":null, "device_software":null, "latitude":null, "longitude":null }, "url":"http://s3.transloadit.com/b7deac9c96af6c745e914e25d0350baa/7a/2b09e822265ac2328789b40dcc02ae/bbc_one.flv" }, "video_encode_iphone":{ "name":"bbc_one.qt", "mime":"video/quicktime", "steps":["encode_iphone","export"], "ext":"qt", "size":218236, "meta":{ "width":480, "height":320, "video_fps":25, "video_bitrate":null, "video_format":"avc1", "video_codec":"ffh264", "audio_bitrate":"128k", "audio_codec":"faad", "duration":3.04, "device_vendor":null, "device_name":null, "device_software":null, "latitude":null, "longitude":null }, "url":"http://s3.transloadit.com/31/58bcc80d5345e52a42c9773125e8f0/bbc_one.qt" } } } Here is what I am trying to use video_links = { :flash_url => params[:transload][:results][:video_encode][:url], :mp4_url => params[:transload][:results][:video_encode_iphone][:url] } params[:video].merge(video_links)

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  • Why does my MPMoviePlayerController disappear when I press play?

    - by Digital Robot
    I have a MPMoviePlayerController in a view, something like myMovie = [[MPMoviePlayerController alloc] initWithContentURL:URLfilme]; if (myMovie) { [myMovie setRepeatMode:MPMovieRepeatModeNone]; [myMovie setShouldAutoplay: NO]; [myMovie setScalingMode:MPMovieScalingModeAspectFit]; myMovie.view.frame = vFilme.bounds; [vFilme addSubview:[myMovie view]]; } The movie appears fine, I can scrub it, but when I press play, boooom, it vanishes. I have tried to retain myMovie but nothing changed. I have tried to play a video fullscreen and even using MPMoviePlayerViewController and is still disappears once I tap on play. Even the video player sample by Apple is not working. Is this a bug or what? EDIT Things are getting more interesting. If instead of playing the video manually by tapping on the play button I insert two timers, one to play the video and another one to pause it after 3 seconds, what I see is this: when the play is fired the video disappears and when the pause is fired the video reappears but when it does it has no controls. It is totally frozen, but the app continues to run normally. It is not anything related to video encoding, because I have tried with different videos, including one shot on the iPhone 4 and another shot on 3GS.

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  • Multiple marker icons, how to add to google mashup

    - by user351189
    I have created a Google maps mashup, where with a bit of input, I have managed to have a sidebar that links to a video icon/marker that then opens up an info window showing virtual tours. I would, however, like to put different coloured marker icons on the map depending on the category that the video is in. This would be easy enough to do, but my page is made up of a mixture of J-Query and JavaScript all calling to the individual flash files. Could someone help me with the code for adding extra marker icons for different categories? Here is the code: So, after the intial 'var camera;' point, there comes this: function addMarker(point, title, video, details) { var marker = new GMarker(point, {title: title, icon:camera}); GEvent.addListener(marker, "click", function() { if (details) { marker.openInfoWindowTabsHtml([new GInfoWindowTab("Video", video), new GInfoWindowTab("More", details)]); } else { marker.openInfoWindowHtml(video); } }); Then further down, is the code for calling the individual marker image. I would like to add another image to this list - would I start out by calling the new object 'camera-red.image' or something similar? function initialize() { if (GBrowserIsCompatible()) { map = new GMap2(document.getElementById("mapDiv")); map.setCenter(new GLatLng(51.52484592590448, -0.13345599174499512), 17); map.setUIToDefault(); var uclvtSatMapType = createUclVTSatMapType() map.addMapType(uclvtSatMapType); map.setMapType(uclvtSatMapType); camera = new GIcon(G_DEFAULT_ICON); camera.image = "ucl-video.png"; camera.iconSize = new GSize(32,37); camera.iconAnchor = new GPoint(16,35); camera.infoWindowAnchor = new GPoint(16,2); addMarkersToMap(); } The actual map can be found here: link text Thanks.

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  • Website. VoteUp or VoteDown Videos. How to restrict users voting multiple times?

    - by DJDonaL3000
    Im working on a website (html,css,javascript, ajax, php,mysql), and I want to restrict the number of times a particular user votes for a particular video. Its similar to the YouTube system where you can voteUp or voteDown a particular video. Each vote involves adding a row to the video.votes table, which logs the time, vote direction(up or down), the client IPaddress( using PHP: $ip = $_SERVER['REMOTE_ADDR']; ), and of course the ID of the video in question. Adding votes is as simple as; (pseudocode): Javascript:onClick( vote( a,b,c,d ) ), which passes variables to PHP insertion script via ajax, and finally we replace the voteing buttons with a "Thank You For Voting" message. THE PROBLEM: If you reload/refresh the page after voting, you can vote again, and again, and again, you get the point. MY QUESTION: How do you limit the amount of times a particular user votes for a particular video?? MY THOUGHTS: Do you use cookies, and add a new cookie with the id of the video. And check for a cookie before you insert a new vote.? OR Before you insert the vote, do you use the IPaddress and the videoID to see if this same user(IP) has voted for this same video(vidID) in the past 24hrs(mktime), and either allow or dissallow the voteInsertion based on this query? OR Do you just not care? Take the assumption that most users are sane, and have better things to do than refresh pages and vote repeatedly.?? Any suggestions or ideas welcome.

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  • Google maps and J-Query: Individual markers?

    - by user351189
    Hi there, I have created a Google maps mashup, where with a bit of input, I have managed to have a sidebar that links to a video icon/marker that then opens up an info window showing virtual tours. I would, however, like to put different coloured marker icons on the map depending on the category that the video is in. This would be easy enough to do, but my page is made up of a mixture of J-Query and JavaScript all calling to the individual flash files. Could someone help me with the code for adding extra marker icons for different categories? Here is the code: So, after the intial 'var camera;' point, there comes this: function addMarker(point, title, video, details) { var marker = new GMarker(point, {title: title, icon:camera}); GEvent.addListener(marker, "click", function() { if (details) { marker.openInfoWindowTabsHtml([new GInfoWindowTab("Video", video), new GInfoWindowTab("More", details)]); } else { marker.openInfoWindowHtml(video); } }); Then further down, is the code for calling the individual marker image. I would like to add another image to this list - would I start out by calling the new object 'camera-red.image' or something similar? function initialize() { if (GBrowserIsCompatible()) { map = new GMap2(document.getElementById("mapDiv")); map.setCenter(new GLatLng(51.52484592590448, -0.13345599174499512), 17); map.setUIToDefault(); var uclvtSatMapType = createUclVTSatMapType() map.addMapType(uclvtSatMapType); map.setMapType(uclvtSatMapType); camera = new GIcon(G_DEFAULT_ICON); camera.image = "ucl-video.png"; camera.iconSize = new GSize(32,37); camera.iconAnchor = new GPoint(16,35); camera.infoWindowAnchor = new GPoint(16,2); addMarkersToMap(); } The actual map can be found here: link text Thanks. Gray

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  • linq to xml selection/update

    - by gleasonomicon
    If I have the following xml, how would I use linq to xml blank out the date fields in each video node? I wanted to do it for the purpose of a comparison in a unit test. <?xml version="1.0" encoding="utf-8" standalone="yes" ?> <main> <videos> <video> <id>00000000-0000-0000-0000-000000000000</id> <title>Video Title</title> <videourl>http://sample.com</videourl> <thumbnail>http://sample.com</thumbnail> <dateCreated>2011-01-12T18:54:56.7318386-05:00</dateCreated> <dateModified>2011-02-12T18:54:56.7318386-05:00</dateModified> <Numbers> <Number>28</Number> <Number>78</Number> </Numbers> </video> <video> <id>00000000-0000-0000-0000-000000000000</id> <title>Video Title</title> <videourl>http://sample.com</videourl> <thumbnail>http://sample.com</thumbnail> <dateCreated>2011-01-12T18:54:56.7318386-05:00</dateCreated> <dateModified>2011-02-12T18:54:56.7318386-05:00</dateModified> <Numbers> <Number>28</Number> <Number>78</Number> </Numbers> </video> </videos>

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  • How to multiseat with HW 3d accel on CentOS 6.3 Final?

    - by user35070
    I would like to setup a multiseat configuration on CentOS 6.3 (two video cards, two keyboards, two mice, two monitors) and have hardware accelerated 3D on both monitors. 3D HW acceleration rules out Xephyr. I saw somewhere that recent versions of GDM (3.3 and newer?) don't support multiseat, so do I have to install KDM to make this work? If I just create a duplicate section with new device identifiers in my xorg.conf file, will this 'just work'? Using different ports on the same video card and separate keyboards, mice, and displays, the result was a desktop which spanned both monitors with both keyboards and mice acting as the same input in the GUI. I will power down and put in the new video card and report on the results soon. Both video cards are nvidia. UPDATE after putting in another NVIDIA video card, default behavior (before changing xorg.conf) is that one screen works normally, and both mice and keyboards are connected to it. Changing xorg.conf and the display manager to KDM and following the directions here https://help.ubuntu.com/community/MultiseatX#Ubuntu_10.04_.28Lucid.29 , I have 2 mirrored screens connected to separate video cards, DRI enabled, and 2 mice both connected to the same pointer. Keyboards don't do anything, however, I probably just need to fix a setting in xorg.conf I would still like to get multiseat functionality, eg. separate screens with separate input devices I have verified that the separate X processes are running (see page above) using 'ps aux | grepX [01]'

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  • convert decrypted .vobs to .avi with ffmpeg on ubuntu

    - by Arcath
    I have a .vob file that has bee ripped from a dvd, when I watch the .vob its very good quality video and 5.1 english audio but when I use ffmpeg it has rubbish video and mono french audio. That was using this command: ffmpeg -i /samba/ripping/vobs/12161840#2.vob -f avi /samba/ripping/avis/test.avi I've tried a few different variations on that but it never comes back with anything good just bigger files with bad video and incorrect sound. I know the videos good and the correct audio streams exist so how do I select a 5.1 track and get good video? ffmpeg gives the .vob details as: Input #0, mpeg, from '/samba/ripping/vobs/12161840#2.vob': Duration: 00:42:05.56, start: 0.287267, bitrate: 5738 kb/s Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x576 [PAR 64:45 DAR 16:9], 8436 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0.1[0x80]: Audio: ac3, 48000 Hz, 5.1, s16, 384 kb/s Stream #0.2[0x81]: Audio: ac3, 48000 Hz, 5.1, s16, 384 kb/s Stream #0.3[0x82]: Audio: ac3, 48000 Hz, mono, s16, 192 kb/s Output #0, avi, to '/samba/ripping/avis/test.avi': Metadata: ISFT : Lavf52.64.2 Stream #0.0: Video: mpeg4, yuv420p, 720x576 [PAR 64:45 DAR 16:9], q=2-31, 200 kb/s, 25 tbn, 25 tbc Stream #0.1: Audio: mp2, 48000 Hz, mono, s16, 64 kb/s Stream mapping: Stream #0.0 -> #0.0 Stream #0.3 -> #0.1

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  • Keeping Xv Overlay configuration throughout an X session.

    - by kriss
    After upgrading my Linux system from Ubuntu 9.04 to Ubuntu 10.10, I suceeded correcting most problems (all related to Intel 82865G Integrated Graphics Adapter support and compiz is still not working but that's another matter) but for one I only have a partial solution. Whenever I play a video the colors are much too saturated. This is really a problem for tones of skins that appears reddish (everyone seems to be coming back from a ski vacation with deep sun burns). As this effect only occurs with videos, not with pictures, I finally figured out it was related to Video Overlays configuration and I can correct it typing: xvattr -a XV_SATURATION -v 120 This change the default saturation value, which is 500 and much too high in my case, at eye sight the correct value seems to be between 100 and 150. Now my problem is that I have to type the above command each time I run a video. If I type it before running the video it has no effect, if I close the video and open a new one, I have to type it again, etc. I tried to put it in Xsession and (logically) it has no effect either. How could I do to get the correct setting whenever I run a video without typing the above command every time ?

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  • PC power supply & normal range for voltages reported in BIOS hardware monitor?

    - by Chris W. Rea
    I'm trying to diagnose whether my computer has an ample power supply. Sometimes when I play a video-intensive game, both monitors lose the video signal, even though the computer remains on and sound playing. A theory I have is: the video card isn't getting sufficient power. I can't imagine it's overheating because the machine is well-ventilated and the video card isn't hot to touch when this happens. Anyway, in my PC's BIOS there's a Hardware Monitor page, and among other voltages reported (such as CPU, DRAM, South Bridge, etc.) I can see the following values: 3.3V 3.152V 5V 4.944V 12V 11.872V Are those the voltages used by peripherals? What voltage should I be referencing if I want to know what my video card (PCI Express) is consuming? What is the normal range of values reported for those? My values above appear to be under by approximately 4.5%, 1.1%, and 1.1% respectively. Is that cause for concern? How else should I be determining if my power supply is "right-sized" for my PC and video card, or am I perhaps barking up the wrong tree?

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  • Figuring out which PC part is faulty

    - by Davy8
    I have an odd scenario and I'm having trouble figuring out which is the faulty component. First of all, the video doesn't work, monitor says it's not getting a signal. Monitor's not faulty (works on other computer) so the first suspect was video card. However 2 things make me think it's not the video card. (Don't have another machine with PCIe around to test definitively) First, the GPU fan is spinning so it's getting power. Second, tried putting in an older PCI video card that is known to be working (pulled out of another working machine) and there's still no video. Normally if it's not the video card I'd suspect the motherboard, but everything's getting power on the mobo, so I'm not sure. The case apparently doesn't have system speakers, so can't hear any of the diagnostic beeps either. Also not sure whether a faulty CPU would cause no image at all either. The parts are brand new so something's going to get RMA'd but I'm not sure which component is to blame in this case. (Only slightly related, but I also accidentally put too much thermal paste on the CPU. The fan/heatsink instructions said to put the whole tube which seemed like a lot compared to previous experience, and as I started squeezing I knew it was definitely too much and stopped at about 1/3 but against my better judgement I didn't wipe any off. I'm not sure whether that would cause problems other than not cooling as effectively as it should)

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  • Yet another blog about IValueConverter

    - by codingbloke
    After my previous blog on a Generic Boolean Value Converter I thought I might as well blog up another IValueConverter implementation that I use. The Generic Boolean Value Converter effectively converters an input which only has two possible values to one of two corresponding objects.  The next logical step would be to create a similar converter that can take an input which has multiple (but finite and discrete) values to one of multiple corresponding objects.  To put it more simply a Generic Enum Value Converter. Now we already have a tool that can help us in this area, the ResourceDictionary.  A simple IValueConverter implementation around it would create a StringToObjectConverter like so:- StringToObjectConverter using System; using System.Windows; using System.Windows.Data; using System.Linq; using System.Windows.Markup; namespace SilverlightApplication1 {     [ContentProperty("Items")]     public class StringToObjectConverter : IValueConverter     {         public ResourceDictionary Items { get; set; }         public string DefaultKey { get; set; }                  public StringToObjectConverter()         {             DefaultKey = "__default__";         }         public virtual object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)         {             if (value != null && Items.Contains(value.ToString()))                 return Items[value.ToString()];             else                 return Items[DefaultKey];         }         public virtual object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)         {             return Items.FirstOrDefault(kvp => value.Equals(kvp.Value)).Key;         }     } } There are some things to note here.  The bulk of managing the relationship between an object instance and the related string key is handled by the Items property being an ResourceDictionary.  Also there is a catch all “__default__” key value which allows for only a subset of the possible input values to mapped to an object with the rest falling through to the default. We can then set one of these up in Xaml:-             <local:StringToObjectConverter x:Key="StatusToBrush">                 <ResourceDictionary>                     <SolidColorBrush Color="Red" x:Key="Overdue" />                     <SolidColorBrush Color="Orange" x:Key="Urgent" />                     <SolidColorBrush Color="Silver" x:Key="__default__" />                 </ResourceDictionary>             </local:StringToObjectConverter> You could well imagine that in the model being bound these key names would actually be members of an enum.  This still works due to the use of ToString in the Convert method.  Hence the only requirement for the incoming object is that it has a ToString implementation which generates a sensible string instead of simply the type name. I can’t imagine right now a scenario where this converter would be used in a TwoWay binding but there is no reason why it can’t.  I prefer to avoid leaving the ConvertBack throwing an exception if that can be be avoided.  Hence it just enumerates the KeyValuePair entries to find a value that matches and returns the key its mapped to. Ah but now my sense of balance is assaulted again.  Whilst StringToObjectConverter is quite happy to accept an enum type via the Convert method it returns a string from the ConvertBack method not the original input enum type that arrived in the Convert.  Now I could address this by complicating the ConvertBack method and examining the targetType parameter etc.  However I prefer to a different approach, deriving a new EnumToObjectConverter class instead. EnumToObjectConverter using System; namespace SilverlightApplication1 {     public class EnumToObjectConverter : StringToObjectConverter     {         public override object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)         {             string key = Enum.GetName(value.GetType(), value);             return base.Convert(key, targetType, parameter, culture);         }         public override object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)         {             string key = (string)base.ConvertBack(value, typeof(String), parameter, culture);             return Enum.Parse(targetType, key, false);         }     } }   This is a more belts and braces solution with specific use of Enum.GetName and Enum.Parse.  Whilst its more explicit in that the a developer has to  choose to use it, it is only really necessary when using TwoWay binding, in OneWay binding the base StringToObjectConverter would serve just as well. The observant might note that there is actually no “Generic” aspect to this solution in the end.  The use of a ResourceDictionary eliminates the need for that.

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  • What is a Delphi version of the C++ header for the DVP7010B video card DLL?

    - by grzegorz1
    I need help with converting c++ header file to delphi. I spent several days on this problem without success. Below is the original header file and my Delphi translation. C++ header #if _MSC_VER > 1000 #pragma once #endif // _MSC_VER > 1000 #ifdef DVP7010BDLL_EXPORTS #define DVP7010BDLL_API __declspec(dllexport) #else #define DVP7010BDLL_API __declspec(dllimport) #endif #define MAXBOARDS 4 #define MAXDEVS 4 #define ID_NEW_FRAME 37810 #define ID_MUX0_NEW_FRAME 37800 #define ID_MUX1_NEW_FRAME 37801 #define ID_MUX2_NEW_FRAME 37802 #define ID_MUX3_NEW_FRAME 37803 typedef enum { SUCCEEDED = 1, FAILED = 0, SDKINITFAILED = -1, PARAMERROR = -2, NODEVICES = -3, NOSAMPLE = -4, DEVICENUMERROR = -5, INPUTERROR = -6, // VERIFYHWERROR = -7 } Res; typedef enum tagAnalogVideoFormat { Video_None = 0x00000000, Video_NTSC_M = 0x00000001, Video_NTSC_M_J = 0x00000002, Video_PAL_B = 0x00000010, Video_PAL_M = 0x00000200, Video_PAL_N = 0x00000400, Video_SECAM_B = 0x00001000 } AnalogVideoFormat; typedef enum { SIZEFULLPAL=0, SIZED1, SIZEVGA, SIZEQVGA, SIZESUBQVGA } VideoSize; typedef enum { STOPPED = 1, RUNNING = 2, UNINITIALIZED = -1, UNKNOWNSTATE = -2 } CapState; class IDVP7010BDLL { public: int AdvDVP_CreateSDKInstence(void **pp); virtual int AdvDVP_InitSDK() PURE; virtual int AdvDVP_CloseSDK() PURE; virtual int AdvDVP_GetNoOfDevices(int *pNoOfDevs) PURE; virtual int AdvDVP_Start(int nDevNum, int SwitchingChans, HWND Main, HWND hwndPreview) PURE; virtual int AdvDVP_Stop(int nDevNum) PURE; virtual int AdvDVP_GetCapState(int nDevNum) PURE; virtual int AdvDVP_IsVideoPresent(int nDevNum, BOOL* VPresent) PURE; virtual int AdvDVP_GetCurFrameBuffer(int nDevNum, int VMux, long* bufSize, BYTE* buf) PURE; virtual int AdvDVP_SetNewFrameCallback(int nDevNum, int callback) PURE; virtual int AdvDVP_GetVideoFormat(int nDevNum, AnalogVideoFormat* vFormat) PURE; virtual int AdvDVP_SetVideoFormat(int nDevNum, AnalogVideoFormat vFormat) PURE; virtual int AdvDVP_GetFrameRate(int nDevNum, int *nFrameRate) PURE; virtual int AdvDVP_SetFrameRate(int nDevNum, int SwitchingChans, int nFrameRate) PURE; virtual int AdvDVP_GetResolution(int nDevNum, VideoSize *Size) PURE; virtual int AdvDVP_SetResolution(int nDevNum, VideoSize Size) PURE; virtual int AdvDVP_GetVideoInput(int nDevNum, int* input) PURE; virtual int AdvDVP_SetVideoInput(int nDevNum, int input) PURE; virtual int AdvDVP_GetBrightness(int nDevNum, int input, long *pnValue) PURE; virtual int AdvDVP_SetBrightness(int nDevNum, int input, long nValue) PURE; virtual int AdvDVP_GetContrast(int nDevNum, int input, long *pnValue) PURE; virtual int AdvDVP_SetContrast(int nDevNum, int input, long nValue) PURE; virtual int AdvDVP_GetHue(int nDevNum, int input, long *pnValue) PURE; virtual int AdvDVP_SetHue(int nDevNum, int input, long nValue) PURE; virtual int AdvDVP_GetSaturation(int nDevNum, int input, long *pnValue) PURE; virtual int AdvDVP_SetSaturation(int nDevNum, int input, long nValue) PURE; virtual int AdvDVP_GPIOGetData(int nDevNum, int DINum, BOOL* value) PURE; virtual int AdvDVP_GPIOSetData(int nDevNum, int DONum, BOOL value) PURE; }; Delphi unit IDVP7010BDLL_h; interface uses Windows, Messages, SysUtils, Classes; //{$if _MSC_VER > 1000} //pragma once //{$endif} // _MSC_VER > 1000 {$ifdef DVP7010BDLL_EXPORTS} //const DVP7010BDLL_API = __declspec(dllexport); {$else} //const DVP7010BDLL_API = __declspec(dllimport); {$endif} const MAXDEVS = 4; MAXMUXS = 4; ID_NEW_FRAME = 37810; ID_MUX0_NEW_FRAME = 37800; ID_MUX1_NEW_FRAME = 37801; ID_MUX2_NEW_FRAME = 37802; ID_MUX3_NEW_FRAME = 37803; // TRec SUCCEEDED = 1; FAILED = 0; SDKINITFAILED = -1; PARAMERROR = -2; NODEVICES = -3; NOSAMPLE = -4; DEVICENUMERROR = -5; INPUTERROR = -6; // TRec // TAnalogVideoFormat Video_None = $00000000; Video_NTSC_M = $00000001; Video_NTSC_M_J = $00000002; Video_PAL_B = $00000010; Video_PAL_M = $00000200; Video_PAL_N = $00000400; Video_SECAM_B = $00001000; // TAnalogVideoFormat // TCapState STOPPED = 1; RUNNING = 2; UNINITIALIZED = -1; UNKNOWNSTATE = -2; // TCapState type TCapState = Longint; TRes = Longint; TtagAnalogVideoFormat = DWORD; TAnalogVideoFormat = TtagAnalogVideoFormat; PAnalogVideoFormat = ^TAnalogVideoFormat; TVideoSize = ( SIZEFULLPAL, SIZED1, SIZEVGA, SIZEQVGA, SIZESUBQVGA); PVideoSize = ^TVideoSize; P_Pointer = ^Pointer; TIDVP7010BDLL = class function AdvDVP_CreateSDKInstence(pp: P_Pointer): integer; virtual; stdcall; abstract; function AdvDVP_InitSDK():Integer; virtual; stdcall; abstract; function AdvDVP_CloseSDK():Integer; virtual; stdcall; abstract; function AdvDVP_GetNoOfDevices(pNoOfDevs : PInteger) :Integer; virtual; stdcall; abstract; function AdvDVP_Start(nDevNum : Integer; SwitchingChans : Integer; Main : HWND; hwndPreview: HWND ) :Integer; virtual; stdcall; abstract; function AdvDVP_Stop(nDevNum : Integer ):Integer; virtual; stdcall; abstract; function AdvDVP_GetCapState(nDevNum : Integer ):Integer; virtual; stdcall; abstract; function AdvDVP_IsVideoPresent(nDevNum : Integer; VPresent : PBool) :Integer; virtual; stdcall; abstract; function AdvDVP_GetCurFrameBuffer(nDevNum : Integer; VMux : Integer; bufSize : PLongInt; buf : PByte) :Integer; virtual; stdcall; abstract; function AdvDVP_SetNewFrameCallback(nDevNum : Integer; callback : Integer ) :Integer; virtual; stdcall; abstract; function AdvDVP_GetVideoFormat(nDevNum : Integer; vFormat : PAnalogVideoFormat) :Integer; virtual; stdcall; abstract; function AdvDVP_SetVideoFormat(nDevNum : Integer; vFormat : TAnalogVideoFormat ) :Integer; virtual; stdcall; abstract; function AdvDVP_GetFrameRate(nDevNum : Integer; nFrameRate : Integer) :Integer; virtual; stdcall; abstract; function AdvDVP_SetFrameRate(nDevNum : Integer; SwitchingChans : Integer; nFrameRate : Integer) :Integer; virtual; stdcall; abstract; function AdvDVP_GetResolution(nDevNum : Integer; Size : PVideoSize) :Integer; virtual; stdcall; abstract; function AdvDVP_SetResolution(nDevNum : Integer; Size : TVideoSize ) :Integer; virtual; stdcall; abstract; function AdvDVP_GetVideoInput(nDevNum : Integer; input : PInteger) :Integer; virtual; stdcall; abstract; function AdvDVP_SetVideoInput(nDevNum : Integer; input : Integer) :Integer; virtual; stdcall; abstract; function AdvDVP_GetBrightness(nDevNum : Integer; input: Integer; pnValue : PLongInt) :Integer; virtual; stdcall; abstract; function AdvDVP_SetBrightness(nDevNum : Integer; input: Integer; nValue : LongInt) :Integer; virtual; stdcall; abstract; function AdvDVP_GetContrast(nDevNum : Integer; input: Integer; pnValue : PLongInt) :Integer; virtual; stdcall; abstract; function AdvDVP_SetContrast(nDevNum : Integer; input: Integer; nValue : LongInt) :Integer; virtual; stdcall; abstract; function AdvDVP_GetHue(nDevNum : Integer; input: Integer; pnValue : PLongInt) :Integer; virtual; stdcall; abstract; function AdvDVP_SetHue(nDevNum : Integer; input: Integer; nValue : LongInt) :Integer; virtual; stdcall; abstract; function AdvDVP_GetSaturation(nDevNum : Integer; input: Integer; pnValue : PLongInt) :Integer; virtual; stdcall; abstract; function AdvDVP_SetSaturation(nDevNum : Integer; input: Integer; nValue : LongInt) :Integer; virtual; stdcall; abstract; function AdvDVP_GPIOGetData(nDevNum : Integer; DINum:Integer; value : PBool) :Integer; virtual; stdcall; abstract; function AdvDVP_GPIOSetData(nDevNum : Integer; DONum:Integer; value : Boolean) :Integer; virtual; stdcall; abstract; end; function IDVP7010BDLL : TIDVP7010BDLL ; stdcall; implementation function IDVP7010BDLL; external 'DVP7010B.dll'; end.

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  • MPMoviePlayerController fullscreen movie inside a UIWebView

    - by Wakazors
    Hi, I'm having a problem with the UIWebView and MPMoviePlayerController: My UIWebView have a movie inside the html (it's a local html file), I'm using html5 and a video tag for the video. The problem is: the user can set the video to play inline, directly on the html or he can tap the fullscreen button, but I need to know if the video is playing fullscreen. I've tried to use MPMoviePlayerDidEnterFullscreenNotification but with no success. Does anybody know how to get this notification from the webview? Thanks in advance

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  • Android - Buffering in MediaPlayer

    - by Chris
    I am using MediaPlayer to play a video in my app. The video takes a while to buffer and the videoview is blank for that time. Is there a way to start the buffering when the user is in the previous screen, so that when he comes to the video playing screen, the video is ready to play? Thanks Chris

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  • Ruby on Rails has_one Model Not Supplying ID Column

    - by Metric Scantlings
    I have a legacy rails (version 1.2.3) app which runs without issue on a number of servers (not to mention my local environment). Deployed to its newest server, though, and I now get ActiveRecord::StatementInvalid: Mysql::Error: #23000Column 'video_id' cannot be null errors. Below are the models/relationships, simplified: class Video < ActiveRecord::Base has_one(:user, :dependent => :destroy) end class User < ActiveRecord::Base belongs_to(:video) end And below is a rails console transcript of the relationships failing: >> video = Video.create(:title => 'New Video') => #<Video:0xb6d5e31c>... >> video.id => 5 >> video.user = User.create(:name => 'Tester') ActiveRecord::StatementInvalid: Mysql::Error: #23000Column 'video_id' cannot be null: INSERT INTO users (`name`, `video_id`) VALUES('Tester', NULL) from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/connection_adapters/abstract_adapter.rb:128:in `log' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/connection_adapters/mysql_adapter.rb:243:in `execute' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/connection_adapters/mysql_adapter.rb:253:in `insert' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/base.rb:1811:in `create_without_callbacks' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/callbacks.rb:254:in `create_without_timestamps' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/timestamp.rb:39:in `create' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/base.rb:1789:in `create_or_update_without_callbacks' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/callbacks.rb:242:in `create_or_update' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/base.rb:1545:in `save_without_validation' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/validations.rb:752:in `save_without_transactions' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/transactions.rb:129:in `save' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/connection_adapters/abstract/database_statements.rb:59:in `transaction' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/transactions.rb:95:in `transaction' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/transactions.rb:121:in `transaction' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/transactions.rb:129:in `save' from /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/base.rb:451:in `create' from (irb):3 from :0 Has anyone else come across ActiveRecord not sending an ID when it clearly knows it?

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  • strange MPMoviePlayer problem

    - by Rahul Vyas
    I am using mpmovieplayer in my application.I have a button for playing movie witch has an image of play.But when mpmovieplayer plays movie i can see that button on movie player's overlying controlls like when i pause movie i see my play button instead of movie player's default button.Also i have customized navigation bar and i can see that navbar when movie plays instead of default nav bar.I tried hiding button when playing movie but it didn't worked.Does Someone knows about this issue? also i am having cropping of video issues does someone knows about how to handle video orientation i mean i want full video in any orientation recorded video.Thanks

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  • iPhone - move above buttons

    - by Mike
    I have a video at 320x240 on the middle of the screen area. Around this video, several buttons that will call different actions. When the MPMoviePlayerController is fired and the movie starts playing the buttons are behind the video and I cannot click them. I see them but they are not clickable. I think the video window is covering the whole area. How can I solve that?

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  • iPhone - move above buttons

    - by Mike
    I have a video at 320x240 on the middle of the screen area. Around this video, several buttons that will call different actions. When the MPMoviePlayerController is fired and the movie starts playing the buttons are behind the video and I cannot click them. I see them but they are not clickable. I think the video window is covering the whole area. How can I solve that?

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  • How to use AVCaptureSession to stream live preview video, then take a photo, then return to streaming

    - by Matthew
    I have an application that creates its own live preview prior to taking a still photo. The app needs to run some processing on the image data and thus is not able to rely on AVCaptureVideoPreviewLayer. Getting the initial stream to work is going quite well, using Apple's example code. The problem comes when I try to switch to the higher quality image to take the snapshot. In response to a button press I attempt to reconfigure the session for taking a full resolution photo. I've tried many variations but here is my latest example (which still does not work): - (void)sessionSetupForPhoto { [session beginConfiguration]; session.sessionPreset = AVCaptureSessionPresetPhoto; AVCaptureStillImageOutput *output = [[[AVCaptureStillImageOutput alloc] init] autorelease]; for (AVCaptureOutput *output in [session outputs]) { [session removeOutput:output]; } if ([session canAddOutput:output]){ [session addOutput:output]; } else { NSLog(@"Not able to add an AVCaptureStillImageOutput"); } [session commitConfiguration]; } I am consistently getting an error message just after the commitConfiguration line that looks like this: (that is to say, I am getting an AVCaptureSessionRuntimeErrorNotification sent to my registered observer) Received an error: NSConcreteNotification 0x19d870 {name = AVCaptureSessionRuntimeErrorNotification; object = ; userInfo = { AVCaptureSessionErrorKey = "Error Domain=AVFoundationErrorDomain Code=-11800 \"The operation couldn\U2019t be completed. (AVFoundationErrorDomain error -11800.)\" UserInfo=0x19d810 {}"; The documentation in XCode ostensibly provides more information for the error number (-11800), "AVErrorUnknown - Reason for the error is unknown."; Previously I had also tried calls to stopRunning and startRunning, but no longer do that after watching WWDC Session 409, where it is discouraged. When I was stopping and starting, I was getting a different error message -11819, which corresponds to "AVErrorMediaServicesWereReset - The operation could not be completed because media services became unavailable.", which is much nicer than simply "unknown", but not necessarily any more helpful. It successfully adds the AVCaptureStillImageOutput (i.e., does NOT emit the log message). I am testing on an iPhone 3g (w/4.1) and iPhone 4. This call is happening in the main thread, which is also where my original AVCaptureSession setup took place. How can I avoid the error? How can I switch to the higher resolution to take the photo? Thank you!

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