Questions tagged [directshow]
The Microsoft DirectShow application programming interface (API) is a media-streaming architecture for Microsoft Windows. Using DirectShow, your applications can perform high-quality video and audio playback or capture.
directshow
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DirectShow obtains the average frame rate
I would like to inquire about obtaining the average frame rate when previewing a camera using DirectShow
I used GraphStudioNext to create the SourceFilter ->Decoder Fliter ->EVR layout. When I ...
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Custom developed Media Player shows black screen (neither audio nor video works) when left unattended for some time
I am maintaining source code for a custom-built, Media Player that was developed years ago by previous developers from whom I have inherited source code several months ago. It's a Windows Forms ...
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Building an Virtual Camera that Receives frames with RTP
I litle interduction to my Project so i have an virtual camera that i build with Directshow, Works how t supposed to work, then i installed an external library uvgRTP and made the code so i receive ...
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Massive memory leak when creating and releasing Capture Filter in DirectShow
After much trial and error I have succeeded in grabbing still images from the laptop's built-in camera.
But I have noticed a memory leak and spent days trying to pin it.
So I have stripped the code to ...
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aforge.video.directshow. "GetDevicesOfCat" not working
Using GetDevicesOfCat in dot net code to enumerate the web cameras.
I enumerated the video devices connected to the computer and when I find the one I want i open the one I want with opencvsharp ...
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Using YUV2 or MPEG format does not work on directshow
I am using the below program to capture frames from the video stream using the sample grabber. When I use the MEDIASUBTYPE_RGB32 the images show up and I can open them. However when I use ...
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ISampleGrabberCB sampleCB() not getting called when using DirectShow
I'm trying to capture Video frames from USB Video Device(UVC) using DirectShow. Actually comparing Media Foundation with DirectShow because I'm seeing around 11 milliseconds buffering when using Media ...
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Can't Add Filter to a FilterGraph running on another Process
I am trying to connect to a filtergraph via the Running Object Table and add a Filter.
I can stop and start the graph, but that is about it. I get an error. I can do this with the original GraphEdit, ...
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How does MediaFoundation set the brightness and other properties of UVC cameras
I am currently using the MediaFoundation API to preview UVC cameras. How can I set/get the brightness, contrast, and other properties of the camera? Although it can be implemented using the ...
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How to send USB requests from windows application to a USB device
Currently I am working in amcap windows streaming application. For that I have downloaded the source from GitHub[https://github.com/microsoft/Windows-classic-samples.git].Now from that application I ...
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How to set exposure for Still Image capture when using DirectShow API on Windows?
I am trying to use the Windows Directshow API to capture still images using a UVC camera. I am using this article from Microsof(https://learn.microsoft.com/en-us/windows/win32/directshow/capturing-an-...
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Very often PyQt5 QMediaPlayer displays an error message when opening a media file
When I open the file, the console displays the error message
DirectShowPlayerService::doRender: Unresolved error code 0x80040218 (IDispatch error #24)
and the media file itself does not play. But if ...
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How to implement antialiasing in DirectShow?
My project uses DirectShow to capture camera input and implement preview functionality. However, I am encountering a problem with noticeable aliasing in the camera preview. Therefore, I am considering ...
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H.264 encoder Filter for Directshow that controls bitrate and GOP Settings in Win32 CPP Project [duplicate]
I'm Working to control Bitrate and GOP Settings using H.264 DirectShow Filter. For that when I have gone through H.264 AMCAP application I have found this H.264 control dialog box. Now from where can ...
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In VLC-Unity, why is the media player unable to play video feed from USB camera using DirectShow?
I'm experimenting the capabilities of VLC-Unit for various video streaming protocol, the simplest of which should be playing the video feed of a USB camera directly.
For this purpose, I start with a ...
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