directshow

I am new to DirectShow. I am writing an application in C# for capturing from Analog capture card. I have an analog capture card & I want to know how to change Analog Crossbar filter property, from "0: Analog Tuner In" to "1: Video Composite In". Here is my Filter Graph I can not connect Tuner's "Analog Video pin" to "Video Composite In" of Crossbar filter. I tried running "Route" method of IAMCrossbar filter, which failed. I don't know whether my path is correct. Please guide... IAMCrossbar::Route is how you do it. Make sure to read Working with Crossbars for details - it is C++ API, however I

how to change OutPut Pin Size & ColorSpace/Compression of a Video Source Filter in DirectShow I want to Know whre the Output Pin PropertyPage Datas are stored and how can I Change those Datas By My Code You can use IPin::EnumMediaTypes on your filter's output pin to get a list of supported media types / video formats. Afterwards, call IAMStreamConfig::GetFormat to get the current format in an AM_MEDIA_TYPE structure. Modify this structure as you wish (make sure your format is supported by the device), and call IAMStreamConfig::SetFormat with the same structure. You would have to write your own

I have a directshow filter that reads M2TS stream and demux it. I can render video and audio in GraphStudio and see it. My question is how can I use this filter as a live source for Expression Encoder job? I saw some recommendations saying to use subgraphs, but I am not so familiar with DirectShow to understand what it is. Thank you in advance for any help. Expression Encoder would look for DirectShow video source devices, which are typically cameras. You might want to implement your won virtual camera so that EE4 would pick it up and start receiving video from it. A popular sample on doing it

I'm working on encoding raw images into avi file on windows possibly using directshow filter. The type of codec used will be selected by user. I've already done a similar thing using video for windows (VFW) which was pretty as it provide simple api to compress the data and write it to a file. This time i want to do this using directshow framework to provide directshow support. However while checking on MSDN I found there different types of filters for different codecs, so there is no single interface. http://msdn.microsoft.com/en-us/library/windows/desktop/dd375464(v=vs.85).aspx Do I need to

I am using a source filter of a webcam. When I use the filter in graphstudio it has two output pins. However in code the call to IEnumPins->next always returns S_FALSE. I also looked for another interface that could create pins but didn't find such a thing. How do I add pins to the webcam filter? If they're available in graphstudio they should be in code too, right? Here is my code.. I checked for return values and returned them if they are not ok. But everything seems to work fine except that the webcam filter doesn't return any pins CoInitialize(NULL); IGraphBuilder* graphBuilder = NULL;

I've been using DirectShow.NET to interface with a webcam in C# and so far everything has been going smoothly. However, right now I'm working on trying to set up a method to "crop" an image (while it's still being displayed as a webcam preview). Basically, I'm trying to show some kind of a mostly transparent image on top of the IVideoWindow object. Dealing with transparency in C#, however, has been pretty far from a cakewalk. So, how can I layer an Image object on top of an IVideoWindow? Thanks! There are two approaches how to achieve this: to use a video transformation filter and deliver

I'm playing with the "Capture Source Filter" from http://tmhare.mvps.org/downloads.htm . After registering the ax driver, I'm trying to understand its compatibility across applications that use video sources. For example, Skype recognize it while browsers (Edge, Chrome) don't. I wonder if it's a limitation of the used approach ( DirectShow filter) or it's just a matter of configuration. The purpose of the question is to understand if that approach is still useful or it's better to move on Media Foundation . I described this here: Applicability of Virtual DirectShow Sources Your virtual camera