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 by right clicking on the filter and entering the bitrate value.

Is it possible to do the same through code?

Please give me valuable suggestions and if possible with code.

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