As a member of yahoo group asked about the so called non-intelligent connect .
Adding and connecting distinct filter in the filter graph manually.
Actually there are many small functions which need to be taken care, So this
may take a little longer to understand, So keep reading this series of blog entries about
connecting filter without intelligent connect in DirectShow.
Intelligent Connect
There are some intelligent algorithms behind this, Which
share the burden of the programmer. Suppose for a little time what
hassle is hidden behind it. Once the IGraphBuilder::RenderFile()
is called the Filter Graph Manager searches for the suitable source filter
which can read and understand the format of media file. Then it tries to
search for a filter which can decode or parse that data (this data is called Media Samples in the DirectShow)
which the source filter will handle to it (through transport), The media sample format which is said the Media Type in the DirectShow
must be same that both filters will understand otherwise the connection will fail,
and Filter Graph Manager will drop that filter and will search for another filter which
will handle the samples with the specified Media Type.
Then Filter Graph Manager will try to load other filters to complete the Filter Graph.
At the end it will load the default Renderer to Display the contents on the screen.
and will connect that with the entire filter graph build previously.
