directshow

I am facing one issue in which WPF application unable to update the progress bar even the button on the wpf window stop glowing untill i move the window then everything is fine. I have try to call InvalidateRect everytime i update the progress bar which actually generate the WM_PAINT message but doesn't solve the issue. This issue is random some time happend some time doesn't happend. My application is using DirectShow at the backened with Enhanced Video Rendering for video rendering. If i replace the Enhanced Video Renderer with VMR everything works fine. I will appreciate if any one can help

I'm capturing images from my webcam with some code that mainly bases on this: Using the Sample Grabber . Here I only get the default resolution of 640x480 while the connected camera is able to show more (other capture applications show a bigger resolution). So, how can I: retrieve the list of available resolutions set one of these resolutions so that the captured image comes with it? Roman R. IAMStreamConfig interface lists capabilities and lets you select resolution of interest. enumerating media types on an unconnected yet pin will list you specific media types (amd resolutions) the camera

I'm developing an application which is previewing video feeds from a capture card and/or a webcam. I've noticed a lot of errors in my console that look like: IGIESW [path to my.exe] found in whitelist: NO IGIWHW Game [path to my.exe] found in whitelist: NO These repeat each time I try to activate a preview window or switch the source feed I'm trying to preview. It actually takes a few seconds each time and it really kills the responsiveness of my application. I'm also seeing a similar slowdown in other applications which are previewing and switching between sources. I have two nearly identical

I have a Delphi 6 application that sends bitmaps to a DirectShow DLL in real-time, 25 frames a second. The DirectShow DLL is my code too and is also written in Delphi 6 using the DSPACK DirectShow component suite. I have a simple block of code that goes through each pixel in the bitmap modifying the brightness and contrast of the image, if a certain flag is set, otherwise the bitmap is pushed out the DirectShow DLL unmodified (push source video filter). The code used to be in the main application and then I just moved it into the DirectShow DLL. When it was in the main application it ran fine.

I'm working on a windows Python 2.7 application that needs to communicate with many different USB webcams. I have been using OpenCV, but for some scientific webcams, the default frame rate, capture format, etc. aren't detected and I get only a blank image. An external program that can open DirectShow properties pages can fix this in my program, but I'd like to have this feature in my application. I have tried one available Python library to do this: VideoCapture (http://videocapture.sourceforge.net/). While this opens property pages, it doesn't allow changing any device settings ("Error