Amcap with multiple inputs

Hello, I built the AMCap sample under direct show in SDK. It is able to handle 2 or more web cam, how do I modify the program for me to use them simultaneously… like press one button that says ‘start capture’ and make sure that ...

Message posted on the January 21st, 2010 - 11:58 AM ET

Blackmagic Design Announces Desktop Video 9.5 with Support for the Upcoming Release of Adobe Creative Suite 6 Software and Windows WDM Driver Support

New Desktop Video 9.5 software update adds support for Adobe Creative Suite 6 software and includes a new WDM driver in the Windows 7 version!.

Press published on the April 16th, 2012 - 10:09 AM ET

Amcap (USBPCCamPlus) doesn't seem to work, does it work for you?

Can anyone run this program: Amcap (USBPCCamPlus). I've had difficulty getting it to work. http://download.chinavasion.com/drivers (Its description is about 2/3rds of the way down this long web page but you can also find it with the find feature ...

Message posted on the June 15th, 2010 - 8:14 PM ET

compatibility with Skype, VLC (VLan), and AmCap

Hi! I'm building a new camera and I'm writing a filter that is supposed to work with with all standard applications. Some of my observations and experiences/advice: Skype expects 320x240 resolution using RGB24 (not RGB32) The camera I'm working on ...

Message posted on the January 28th, 2009 - 4:15 AM ET

Amcap compiling problem

Hy, I'm having problem compiling this capture sample can somebody please help? I have have included headers and libraries in the project Here are the errors while compiling: Error 1 error C2146: syntax error : missing ')' before identifier ...

Message posted on the July 4th, 2009 - 4:27 PM ET

Multiple calls to createinstance

Hi all, I have a virtual device based on Vivek's VCam that works as intended when opened from amcap. If I open it from the flash app it was crated for there are problems. When debugging the code I noticed that after the CClassFactory::CreateInstance ...

Message posted on the January 22nd, 2010 - 2:43 AM ET

CTransInPlaceFilter::CheckInputType - upstream or downstream?

I have an application derived from the Amcap video capture sample with a transform-in-place filter that modifies the image. This works fine with webcams with a video resolution of 640 x 480 or so. With a HD video capture card, specifically a ...

Message posted on the November 25th, 2009 - 2:43 PM ET

pGraph->Render(ip) fails many times - when changing resolutions

Hi! The hardest problems are those that happen sometimes, but don't always happen - well that's the situation here. I've written an application in VC++ 2005 based on Amcap. I can successfully see video at FULL resolution. If I want to change ...

Message posted on the July 14th, 2009 - 9:02 AM ET

Sample capture graph builder from SDK - can't delete --> memory le

Hi! I wrote an application based on Amcap and using Sample capture graph builder (ISampleCaptureGraphBuilder) - SGB files are from newest SDK - not changed. I can't declare it with SmartPointers - even though all the other filters are smart ...

Message posted on the February 26th, 2009 - 3:17 AM ET

setting input/source resolution on tuner card?

Windows Server 2k3 Enterprise. PCI tuner card (Philips 7134 chipset). I can make everything look beautiful in AmCap, but can't get the same settings in Windows Media Encoder 9!? In AmCap, I go to Options, Video Crossbar. Set the input to Composite ...

Message posted on the January 11th, 2009 - 2:38 AM ET

How to build a capture graph with CC and VMR7?

Hi, I'm struggling with building a preview graph that would display closed captioned text on top of video using VMR7 as a renderer. Is this possible? I'm not quite clear on how you properly build a graph like that. AmCap example looks quite simple ...

Message posted on the April 8th, 2010 - 3:18 PM ET

Adobe Premiere and WDM capture

Hi, I've written a WDM Directshow Avstream driver for my video frame grabber. Works fine in the usual applications (GraphEDt, VirtualDub, AmCap) but doesn't show up in Adobe Premiere CS4. From tracing I can see that my driver does get loaded, and ...

Message posted on the January 29th, 2010 - 2:53 PM ET

Programming an Analog TV and FM Radio Tuner Card.

Hi All! I have an analog TV Tuner Card, which has an FM radio built-in as well. I started learning DirectShow, but I am stuck at the begining. There are so many Interfaces and methods. It seems too confusing. I have the following questions (I am ...

Message posted on the January 2nd, 2010 - 6:28 AM ET

Image Tearing in video capturing, VSync in directshow??

Hi, I am developing an application to capture images from the analog video source. I am using Directshow apis to capture the analog video. The application is based on msdn sample amcap (first creates graph the adds video capture filter and finally ...

Message posted on the December 9th, 2009 - 1:47 PM ET