Learning basics of Directshow and questions

1. Please correct me if the understanding wrong...

Each type of Directshow filters has its own Standard interfaces, plus its
custom interfaces.

The questions are

a. A specific filter may not implement all the standard interfaces.
b. A specific filter may not implement any custom interface at all. If
it does, is there a way to find out what they are without documentation but
the .ax file only? (At least find its interface and method names?)


2. What is .acm files like lameACM.acm? How are they related to
filters/graph in Directshow? How to make use of such files in Directshow?


3. Is it correct to say that codecs such as those .dll files in System32
folder are used by filters or wrapper filters in Directshow? Or what's the
exact relationship between codecs and filters in such situation? How they're
related to function together?



.

Relevant Pages

  • Thoughts on Managed Directshow (and why it doesnt exist) Comments?
    ... I've written several directshow filters in C++ and the obvious ... The who Microsoft media platform is based on these filters. ... REDESIGNED from scratch and from ground zero with managed interfaces. ... How do you redesign all of those filters? ...
    (microsoft.public.win32.programmer.directx.managed)
  • Crap: Really no programmatically filter control in DirectShow??
    ... I try to use several MPEG2-Decoders in my DirectShow application. ... Besides the quality and performance issues among all the filters you can get ... If I have to know what interfaces a COM object can use (I can only ... So I can only control these filters, where .h header files exist from the ...
    (microsoft.public.win32.programmer.directx.video)
  • Re: NDIS_MINIPORT_CHARACTERISTICS
    ... I am referring to NDIS-hooking filters that wrap the NDIS interfaces. ... kernel security if unsigned drivers and components can so easily ...
    (microsoft.public.development.device.drivers)
  • XDS Codec - any experiences
    ... We have been implementing a number of filters in WME9, ... except the XDS_Codec filter and interfaces ... In the documentation, there are several vague points which we ...
    (microsoft.public.windowsmedia.sdk)
  • Looking for more docs on PfCreateInterface
    ... My main goal is to add filters to the WAN ips on the server boxes so that I ... Are the filter interfaces created via PfCreateInterface persisted on the ... without modifying the settings? ...
    (microsoft.public.win32.programmer.networks)
Loading