Using IP Video Source programmatically as a standalone DirectShow Video Source Filter for JPEG and M-JPEG IP Cameras

Recent IP Video Source class/module is not limited to use via registration as a video input/capture/source device. The filter is also registered as a regular filter and can be used programmatically in a regular way: CoCreateInstance, AddFilter etc.

A C++ code snippet below shows how to import interface definition, create an instance of the filter, set it up and start video from a camera:

#include <dshow.h>
#pragma comment(lib, "strmiids.lib")

#import "libid:BDCE8B49-8895-4605-8278-E9A1FBC889AC" no_namespace raw_interfaces_only raw_dispinterfaces named_guids // IpVideoSource

// [...]

inline VOID ATLENSURE_INLINE_SUCCEEDED(HRESULT nResult)
{
    ATLENSURE_SUCCEEDED(nResult);
}

// [...]

CComPtr<IBaseFilter> pBaseFilter;
ATLENSURE_INLINE_SUCCEEDED(pBaseFilter.CoCreateInstance(CLSID_JpegVideoSourceFilter));
CComQIPtr<IJpegVideoSourceFilter> pJpegVideoSourceFilter = pBaseFilter;
ATLENSURE_THROW(pJpegVideoSourceFilter, E_NOINTERFACE);
ATLENSURE_INLINE_SUCCEEDED(pFilterGraph->AddFilter(pBaseFilter, L"Source"));

ATLENSURE_INLINE_SUCCEEDED(pJpegVideoSourceFilter->put_Location(CComBSTR(_T("http://p.viewnetcam.com:60001/nphMotionJpeg?Resolution=640x480&Quality=Standard"))));
ATLENSURE_INLINE_SUCCEEDED(pJpegVideoSourceFilter->put_Width(640));
ATLENSURE_INLINE_SUCCEEDED(pJpegVideoSourceFilter->put_Height(480));

#pragma region Render Output Pin
CComPtr<IEnumPins> pEnumPins;
ATLENSURE_INLINE_SUCCEEDED(pBaseFilter->EnumPins(&pEnumPins));
CComPtr<IPin> pPin;
ATLENSURE_THROW(pEnumPins->Next(1, &pPin, NULL) == S_OK, E_FAIL);
ATLASSERT(pPin);
ATLENSURE_INLINE_SUCCEEDED(pFilterGraph->Render(pPin));
#pragma endregion

This starts M-JPEG video from Panasonic BB-HCM381A camera available to public online at http://p.viewnetcam.com:60001/nphMotionJpeg?Resolution=640×480&Quality=Standard

UPDATE: ATLENSURE_SUCCEEDED macro in the snippet replaced with ATLENSURE_INLINE_SUCCEEDED – see additional post on this.

C#.NET code snippet will look like this (using DirectShowLib):

using DirectShowLib;
using AlaxInfoIpVideoSource;

// [...]

FilterGraph filterGraph = new FilterGraph();
IJpegVideoSourceFilter sourceFilter = Activator.CreateInstance(Type.GetTypeFromCLSID(new Guid("{A8DA2ECB-DEF6-414D-8CE2-E651640DBA4F}"))) as IJpegVideoSourceFilter;
IBaseFilter sourceBaseFilter = sourceFilter as IBaseFilter;
(filterGraph as IFilterGraph2).AddFilter(sourceBaseFilter, "Source");
sourceFilter.Location = @"http://p.viewnetcam.com:60001/nphMotionJpeg?Resolution=640x480&Quality=Standard";
sourceFilter.Width = 640;
sourceFilter.Height = 480;
IPin pin = DsFindPin.ByDirection(sourceBaseFilter, PinDirection.Output, 0);
(filterGraph as IFilterGraph2).Render(pin);
(filterGraph as IMediaControl).Run();
EventCode eventCode;
(filterGraph as IMediaEvent).WaitForCompletion(-1, out eventCode);