How to use ltmmProcessors object to register a 3rd-party DirectShow filter as a video processor (C)
The following function for C shows how to use the ltmmProcessors object from the ltmmPlayControl object to register a 3rd-party video processor.
void EnableMyVideoProcessor()
{
IltmmProcessors *pVideoProcessors = NULL;
IltmmPlay_get_VideoProcessors(pPlayCtrl, &pVideoProcessors);
if(NULL != pVideoProcessors)
{
// Register the external filter by class id
IltmmProcessors_RegisterExternalProcessor(pVideoProcessors, L"{AFF289A6-ABF1-4d68-9A51-634BF7077CFC}", VARIANT_TRUE);
IUnknown_Release(pVideoProcessors);
}
}