How to know which directshow filters are being used for audio and video decoding?

[orion44]

Is there a way to know which directshow filters are being used for decoding audio/video files?

For example, if I play mp4 or aac files with Windows Media Player, how do I know which directshow
filters are being used for decoding?

[Midzuki]

"DirectShow Filter Graph Spy"

http://alax.info/blog/777

[raffriff42]

Perhaps a more user-friendly introduction:
http://avisynth.nl/index.php/GraphEdit
http://avisynth.nl/images/thumb/GraphStudioNext-example.png/420px-GraphStudioNext-example.png (http://avisynth.nl/index.php/GraphEdit)

Suggest you try it: get GraphStudioNext,
https://github.com/cplussharp/graph-studio-next
(one of several filter-graph programs that all work basically the same)

Run the program, drag a video on the program window,
and the program will build a "filter graph" (chain of filters)
that duplicates what Windows Media Player would do.

It's easier once you've seen it in operation.
Once you load and play a file, there are many more features to be explored.

[orion44]

Perhaps a more user-friendly introduction:
http://avisynth.nl/index.php/GraphEdit
http://avisynth.nl/images/thumb/GraphStudioNext-example.png/420px-GraphStudioNext-example.png (http://avisynth.nl/index.php/GraphEdit)

Suggest you try it: get GraphStudioNext,
https://github.com/cplussharp/graph-studio-next
(one of several filter-graph programs that all work basically the same)

Run the program, drag a video on the program window,
and the program will build a "filter graph" (chain of filters)
that duplicates what Windows Media Player would do.

It's easier once you've seen it in operation.
Once you load and play a file, there are many more features to be explored.

Thanks. This is just what I was looking for.