directshow

I'm trying to use the Desktop capture filter that comes with the SDK (PushSourceDesktop). I compiled it and seem to use it successfully as it actually captures my desktop and saves it to a file. But the application crashes when its done/exits. When I break on the error it only says no source available and the call stack location is KernelBase.dll!7560280C(). I thought I give it a shot here to see if anyone can recognize some issue or if I am doing something blatantly wrong that might cause the crash. Thanks in advance! EDIT: working code int main() { HRESULT hr; hr = CoInitialize(NULL); {

I am working on creating a video wall like application. The application creates multiple windows to display video and each window has its own filter graph. In a typical configuration, these windows would be spread over two displays for a total of 12 windows. But the problem is whenever I try to run the application, a few of the windows display black video. There are no crashes and each graph is rendered correctly without throwing any errors. The windows displaying the black video are random. I have tested this on two different graphics card with similar results. Can someone please help

When running an application in QT5 made ​​using the QWebView , I accessed a page with a video player in HTML5 , but the video does not play and qt/directshow shows the following error: DirectShowPlayerService::doRender: Unresolved error code 80040218 DirectShowPlayerService::doRender: Unresolved error code 80040218 Details: QT5.1.1 MingW4.8 32bit Windows 7 64bit I suspect that is why my Windows is 64bit , but the QT/MingW * runs on 32bit and maybe miss some DLL/LIB . How can I resolve this? Thanks. The error code is rather generic: 0x80040218 VFW_E_CANNOT_RENDER "No combination of filters

I made a TV-Player in c# using directshowlib-2005. now I made a method to search for available channels. I want this method to run in a different thread so my GUI won't freeze, but I get an error when I try to set the channel in the method. It can't find the IAMTVTuner interface in my graph, altough I know it's there. If I don't use a different thread, the method works just fine (but my GUI freezes for a while) I know it has to do something with apartments, but is there a way I can acces that interface in a different thread then the thread where created my graph in? This problem is because

enter code here I have to stop and start Video Renderer Filter dynamically . That is not possible with "normal" Direct Show Architecture without creating new graph. But with GMFBridge it seems it is possible. But i can not figure out how to use it.( yes i read the paper at http://www.gdcl.co.uk/gmfbridge/index.htm ) My Graph is: SourceFilter ---> MyCustomTransformFilter ---> Video Rendrer Filter So GMFBridge fits where? i) I can devide my graph two pieces [ Source Filter + MyCustomFilter ] + Video Rendere ii) Then how to add my filters to graph, and stop start Video Rendrere without affecting

I just create simple graph to record video from a source Filter: SourceFilter ---> Muxer ---> FileWriter I can able to save video which come from SourceFilter to my local disk. But when i try to play the recorded video, it play in "slow motion" :-). It is sure that there is fps (frame persecond) problem. How can i fix it? any ideas? PS: To check if my SourceFilter give righ fps i simply create another graph: SourceFilter ---> Video Decoder ---> Video Renderer and it plays at right speed (fps) More Details: SourceFilter(*.mp4 file format) ---> Avi Mux Filter ---> File writer Filter This record

I'm brand new to DirectShow and am working on adding a video stream to my application. I've looked into many solutions out there (TouchLess, DirectShow.net, etc.) and ended up going with this small project on Code Project There isn't much to it, which is why I selected it; I wanted a small code base to work with, as I need to get this feature implemented quickly. After a solid day of reading, experimenting and debugging I finally have everything working nicely. There is a delay which is a bummer but I can worry about that later. The issue I have at this point is that the camera is capable of