No video preview with Magewell Pro 4K+ video capture driver

[mikeiz]

I've been using VD2 with the Magwell HDMI Pro 4K+ capture card successfully for some time now. Recently there was a Windows update (I'm using Windows 10 64 bit) that broke my setup in that I no longer can see or capture video using VD2 AVI capture.

I can if I use the Windows WDM VFW driver, but this driver is modifying the captured video preventing me from capturing exactly what I'm playing. In the past, when I capture the source I can get a 100 dB PSNR measure, which tells me the captured video matches the source. Now I can't get this and I can only think that the difference in the driver has something to do with this.

I updated the Magewell driver to the latest version 1.0.3.4030, nVidia Quadro K2000 driver version 26.21.14.3064, Virtualdub 2 build 43602.

I've tried reverting back to earlier versions of the nVidia Quadro driver, but I couldn't get Vd2 AVI capture to work.

Mike

[Cornucopia]

One of the recent version updates to Win10 changed device privileges, due to privacy concerns. Check you Privacy settings to make sure that device is still set to "Allowed" (ON) - in general and for that app specifically. It could be the update reset it to "Not Allowed" (OFF). If that's the case, it has nothing to do with your driver.

Scott

[shekh]

Do you have any error messages?
After you start capture test, what happens?
What is contents of Capture->Log and also Capture->DShow Graph?

[SHS]

Under the Windows Setting under Privacy then Camera, Besure the Camera access for this device is on

[mikeiz]

Capture->Log

[i] CapDShow: loading video filter state: (error code: 800704df,
ERROR_ALREADY_INITIALIZED)

[i] CapDShow: loading audio filter state: (error code: 800704df,
ERROR_ALREADY_INITIALIZED)

[i] Connected to capture device: Video (00 Pro Capture HDMI 4K+) (DirectShow)

[!] CapDShow: Unable to transition filter graph to run state: hr = 80070016
(ERROR_BAD_COMMAND)

[i] Connected to capture device: Screen capture

[i] Connected to capture device: Video file (Emulation)

[i] Connected to capture device: Microsoft WDM Image Capture (Win32) (VFW)

[i] CapDShow: loading video filter state: (error code: 800704df,
ERROR_ALREADY_INITIALIZED)

[i] CapDShow: loading audio filter state: (error code: 800704df,
ERROR_ALREADY_INITIALIZED)

[i] Connected to capture device: Video (00 Pro Capture HDMI 4K+) (DirectShow)

[!] CapDShow: Unable to transition filter graph to run state: hr = 80070016
(ERROR_BAD_COMMAND)







Capture->DShow Graph

Filter graph 0000000000A445C0:
Reference clock: unknown
Filter 0000000000A49238 [Audio sink]:
Pin "In" (input): connected to pin "Recording Control" of filter "Audio capture"
Filter 0000000000A4A888 [Video sink]:
Pin "In" (input): connected to pin "Capture" of filter "Capture device"
Filter 0000000000A7E778 [Video Renderer]:
Pin "VMR Input0" (input): connected to pin "Preview" of filter "Capture device"
Filter 0000000000A4A368 [Audio capture]:
Pin "Recording Control" (output): connected to pin "In" of filter "Audio sink"
Pin "Input1" (input): unconnected
Filter 0000000000A38E98 [Capture device]:
Pin "Capture" (output): connected to pin "In" of filter "Video sink"
Pin "Preview" (output): connected to pin "VMR Input0" of filter "Video Renderer"

[mikeiz]

The camera access for this device is On.

Mike

[shekh]

CapDShow: Unable to transition filter graph to run state: hr = 80070016 (ERROR_BAD_COMMAND)

- this is bad but I cannot narrow it down to any solution.

You said this happened after windows update, what about uninstalling the update?

[mikeiz]

When I change Video->Overlay to Video->Preview then back to Video->Overlay, the video preview displayed and I was able to capture video.