Windows System Software -- Consulting, Training, Development -- Unique Expertise, Guaranteed Results

Home NTDEV

More Info on Driver Writing and Debugging


The free OSR Learning Library has more than 50 articles on a wide variety of topics about writing and debugging device drivers and Minifilters. From introductory level to advanced. All the articles have been recently reviewed and updated, and are written using the clear and definitive style you've come to expect from OSR over the years.


Check out The OSR Learning Library at: https://www.osr.com/osr-learning-library/


Before Posting...

Please check out the Community Guidelines in the Announcements and Administration Category.

Expose Directshow transform filter as video capture device

minhptaminhpta Member Posts: 23

I want to implement an on top filter for webcam to be used in third-parties streaming app such as Skype, Facebook Messenger.
My idea is creating a Drectshow transform filter and introduce it to the world as a video capture device.
When applications connect to my video capture device which actually is a transform filter, the filter will connect itself to the real webcam's video source using IFilterGraph.

Is my approach correct?
I would be very grateful if you give me some ideas to do that.

Comments

  • Tim_RobertsTim_Roberts Member - All Emails Posts: 14,163

    Sort of. You CAN create a DirectShow source filter that reads from a web camera, does some manipulations, and offers it as a separate video source. However, some video-consuming applications (Skype chiefly among them) will only connect to camera devices backed by a kernel driver. So, the concept works in most circumstances, but not 100%.

    The same is not true of audio.

    Tim Roberts, [email protected]
    Providenza & Boekelheide, Inc.

Sign In or Register to comment.

Howdy, Stranger!

It looks like you're new here. Sign in or register to get started.

Upcoming OSR Seminars
OSR has suspended in-person seminars due to the Covid-19 outbreak. But, don't miss your training! Attend via the internet instead!
Writing WDF Drivers 24 January 2022 Live, Online
Internals & Software Drivers 7 February 2022 Live, Online
Kernel Debugging 21 March 2022 Live, Online
Developing Minifilters 23 May 2022 Live, Online