Run method runs the filter.
This method has no parameters.
Returns S_OK if successful, or an HRESULT value indicating the cause of the error.
This method overrides the CBaseFilter::Run method. It performs the following actions:
- Calls the CBaseFilter::Run method.
- Commits the allocator. (See IMemAllocator::Commit.)
- If the previous state was stopped, the filter releases any sample it is holding. (The sample is no longer valid.)
- Calls the CBaseRenderer::StartStreaming method and returns the result. If a sample is pending, the StartStreaming method schedules it for rendering.
If the filter is not connected, it posts an EC_COMPLETE event immediately.