Change FPS in FFDShow Avisynth filter

[ImAhNoBoDy]

I'm trying to change the fps for any/all videos that I play in WMP by using Avisynth filter in FFDShow. I tried using AssumeFPS and ChangeFPS, but the video does not speed up/slow down. If I create a avs script with AssumeFPS, the video speeds up/slow down. Is there any way to just use the Avisynth filter in FFDShow to change the FPS of a video?

If there is another post, please direct me to it. I did a search, but I couldn't find a post for this. Thanks.

[Gavino]

You cannot change the video duration using the Avisynth filter within ffdshow.
However ChangeFPS() can be used to change the number of frames displayed in that duration.
AssumeFPS() has no effect.

See this post, and post #43 in the same thread.

[hello_hello]

Can you use Reclock instead? What's the purpose of changing the frame rate?