directshow

使用QMediaPlayer和QVideoWidget QHBoxLayout *m_layout= newQHBoxLayout(this); QMediaPlayer *m_player = new QMediaPlayer(this); m_player->setMedia(QUrl::fromLocalFile(QString::fromLocal8Bit("d:/QtTest/111.mp4"))); QVideoWidget *m_videoW = new QVideoWidget(this); m_layout->addWidget(m_videoW); this->setLayout(m_layout); m_player->setVideoOutput(m_videoW); m_videoW->show(); m_player->play(); 代码写起来很简单，编译也能通过，但是运行就会出错 DirectShowPlayerService::doRender: Unresolved error code 0x80040266 如果文件路径不对或者文件名是中文的，则会显示如下错误： DirectShowPlayerService::doSetUrlSource: Unresolved error code 0x80004005 () 网上查了下， Qt

I have a Delphi 6 program that receives audio from an external program via a socket. Now I want to feed that audio to a DirectShow filter graph I create that routes that audio to different output filters on the PC. I am using DSPACK for my DirectShow filter graph work. I'll be using one of the DSPACK examples that shows how to create a Push Source Filter as my starting point. Is it possible to embed a DirectShow filter directly into my main EXE, or do I have to create an external DLL or AX file and run regsvr32 on it? I'd like to avoid creating an external module otherwise I'll have to create

I have 2 related questions for my web cam live capture application. The webcams capture data in varying formats such as YUY2, RGB24, I420, MJPG etc. I need to convert the captured data to I420 irrespective of the input format. Hence I need to know the current scope/capability of the Direct Show inbuilt Transform filter such as Sample Grabber. Will the Sample Grabber support at least these many transformations? Or will I have to write my own custom filters? Many of the webcams seem to have multiple format output. When I connect Sample Grabber whose media type is Set to I420, will the Sample

I'm trying to stream a video from a camera ( Sony HVR-Z1E ) over FireWire to my Computer. The incoming pictures/stream shall be processed further by some functions which expect the CVMat format ( from openCV ). Well my problem is now that I have no idea how to grab the stream. Okay openCV 2.1 offers me some methods ( cvCapturefromCam ) , but no matter which parameter I give him, it always gets the stream from the webcam of the laptop and not from the firewire. I heard I need to switch the primary cam in the DirectShow API ( with the Windows SDK ). But I actually don't know how to do that

In order to render a DirectShow graph in my WPF application, I use a sample grabber to write a bitmap to memory, and read it elsewhere in code. This may seem as a wierd solution, but seems to be the only way to get a WPF brush out of it. The following code gives me the information I need about the bitmap: AMMediaType mt = grabber.GetConnectedMediaType(); VideoInfoHeader header = (VideoInfoHeader)Marshal.PtrToStructure(mt.formatPtr, typeof VideoInfoHeader); header.BmiHeader // ... Now, header.BmiHeader is of type BitmapInfoHeader and provides information such as the width and height of the

I need to get the duration of an mp4 file, preferably as a double in seconds. I was using DirectShow (see code below), but it keeps throwing a particularly unhelpful error. I'm wondering if someone has an easy solution to this. (Seriously, who knew that getting that information would be so difficult) public static void getDuration(string moviePath) { FilgraphManager m_objFilterGraph = null; m_objFilterGraph = new FilgraphManager(); m_objFilterGraph.RenderFile(moviePath); IMediaPosition m_objMediaPosition = null; m_objMediaPosition = m_objFilterGraph as IMediaPosition; Console.WriteLine(m

I made a console application, using directshow, that record from a live source (now a webcam, then a tv capture card), add current date and time in overlay and then save audio and video as .asf. Now I want that the output file is going to change every 60 minutes without stopping the graph. I must not loose any seconds of the live stream. The graph is something like this one: http://imageshack.us/photo/my-images/543/graphp.jpg/ I took a look at the GMFBridge but I have some compiling problem with their examples. I am wondering if there is a way to split what exist from the overlay filter and

I am a developer in DotNet. I want to give skype a possibility to add a webcam simulator and send my bitmap frames to the DirectShow simulator. In this case I can draw my images in my application and on skype I can share this images to my friend. I was on: http://msdn.microsoft.com/en-us/library/dd407344%28VS.85%29.aspx but it's no Dotnet and I am not sure what example I should believe in. I also saw: http://directshownet.sourceforge.net/ But as far as I undestand, here I cannot do with this framework what I need, or can I? My question is: What is basically needed to create such an DirectShow