Is it possible to use the gstreamer sdk with c#?

[eldon wong]

Is it possible to incorporate  gstreamer SDK into a DLL that can be called from
a .NET app?

There was no problem compiling the application code along with the some of the
gstreamer DLLs
into a library.     __declspec(dllexport) was added to expose the external
calling interface
for a DLL.

    #include <stdio.h>
    #include "stdafx.h"
    #include "testProto.h"

    extern "C"
    {
        __declspec(dllexport) int Sum(int a, int b)
        {
            return CTestProto::SetVideoCaps( a, b );
        }
    }

The header file looked like this:

    #pragma once

    class CTestProto
    {
    public:
        CTestProto();

        static void TestThis();
        static int SetVideoCaps( int nWidth, int nHeight ) ;

    };

This code sample worked when called from a WPF .net application

    int CTestProto::SetVideoCaps( int nWidth, int nHeight )
    {
        GstCaps *caps;
        return nWidth + nHeight;
    }


This DID NOT!!!

When the sample was modified by adding gst_video_format_new_caps(...), failure
occurred during run-time.

void CTestProto::SetVideoCaps( int nWidth, int nHeight )
{
    GstCaps *caps;
    caps = gst_video_format_new_caps (GST_VIDEO_FORMAT_RGB, nWidth, nHeight, 0,
1, 3, 3);
}

An error appears :  BadImageFormatException was unhandled
An attempt was made to load a program with an incorrect format. ( Exception
from HRESULT: 0x8007000B )


The GUI-based code will be WPF-based, I was planning to pass the Window Handle
of the WPF application to the Gstreamer pipeline written in Native C++ code.

Is it possible to wrap the gst... calls so that the DLL can be used?

If the only option is the use of the gstreamer-sharp wrapper, I am unsure how
to proceed.
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