2,040 questions
-6
votes
0
answers
65
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FFmpeg recording freezes mid recording and remainder of the footage is missing [closed]
I've been trying to make an application for the past couple months, which will automatically record your screen, however I notice an issue my users have been reporting, and I'm just unsure how to deal ...
- 1
0
votes
0
answers
15
views
How can I determine that FilgraphManager from Quartz DLL finished playing?
It seems that after FilgraphManager.Run() is called and, asynchronously, and the playback is complete, FilgraphManager.GetState() keeps returning 2 for 'Running'.
I do not see any events at https://...
1
vote
0
answers
62
views
DirectShow IMediaControl::Run no longer renders MPEG-1 videos, but WMV still works [closed]
I am maintaining a legacy application that uses DirectShow (IMediaControl::Run) to play video files. On one of our devices, MPEG-1 videos no longer render. WMV files still play correctly.
Symptoms:
...
- 108
1
vote
0
answers
66
views
Why do all my 16-bit microphones appear as 32-bit float audio streams?
Why does Windows only give me 32-bit float audio streams even though both my microphones only produce 16-bit audio?
I've tried in WinRT/C# (AudioEncodingProperties) and also Media Foundation/C++ (...
- 929
2
votes
0
answers
77
views
Output Image Corruption in Media Foundation Using MFT
I'm processing video using Media Foundation and a Media Foundation Transform (MFT), but the output image appears completely corrupted.
I'm attempting to convert video frames from one format to another,...
0
votes
0
answers
105
views
Logitech C270 HD Webcam on Windows 10 Pro: "No combination of intermediate filters could be found to make the connection" Error
I'm using a Logitech C270 HD Webcam on Windows 10 Pro build 16299 in my .NET 2.0 Windows application. When I try to use Camera_NET.CameraControl.SetCamera, I encounter the following error:
No ...
- 11
0
votes
0
answers
186
views
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 ...
0
votes
0
answers
70
views
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 ...
- 15
-1
votes
1
answer
122
views
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 ...
1
vote
1
answer
143
views
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 ...
- 33
0
votes
1
answer
208
views
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 ...
- 151
0
votes
0
answers
212
views
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 ...
- 23
1
vote
1
answer
502
views
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-...
- 33
2
votes
0
answers
176
views
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 ...
- 61
1
vote
0
answers
65
views
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 ...
- 23