How to change Directshow filter properties C++

Question

How to change Filter Properties programmatically?

I am using a filter AAC encoder, and I can manually change its bitrate in graphedit

Answer 1

You do this via private filter-specific interface. You need to refer to filter documentation or SDK to get details on this (VSS Tech Support). Sometimes you can obtain the necessary information from type library.

See:

• Controlling variables in filter remotely
• with out property page, How can I input a value through codes?
• Define a Mechanism for Setting the Property on MSDN