Forum: VirtualDJ Plugins

#include "stdafx.h"
#include "vdjDsp8.h"
#include <stdio.h>
#include <sstream>

enum
{
	LocoDog4_Param_Slider_Vol
}
;
class CLocoDog4 : public IVdjPluginDsp8
{
public:
	HRESULT VDJ_API OnLoad();
	HRESULT VDJ_API OnGetPluginInfo(TVdjPluginInfo8 *infos);
	ULONG   VDJ_API Release();
	HRESULT VDJ_API OnStart();
	HRESULT VDJ_API OnStop();
	HRESULT VDJ_API OnParameter(int id);
	HRESULT VDJ_API OnGetParameterString(int id, char *outParam, int outParamSize);
	HRESULT VDJ_API OnProcessSamples(float *buffer, int nb);
private:
	float parSliderVol;
};

HRESULT VDJ_API DllGetClassObject(const GUID &rclsid, const GUID &riid, void** ppObject)
{
	if (memcmp(&rclsid, &CLSID_VdjPlugin8, sizeof(GUID)) == 0 && memcmp(&riid, &IID_IVdjPluginDsp8, sizeof(GUID)) == 0)
		*ppObject = new CLocoDog4();
	else
		return CLASS_E_CLASSNOTAVAILABLE;
	return NO_ERROR;
}
HRESULT VDJ_API CLocoDog4::OnLoad()
{
	DeclareParameterSlider(&parSliderVol, LocoDog4_Param_Slider_Vol, "Volume", "VOL", 1.0f);
	return S_OK;
}

HRESULT VDJ_API CLocoDog4::OnGetPluginInfo(TVdjPluginInfo8 *infos)
{
	infos->Author = "Locodog";
	infos->PluginName = "Vol";
	infos->Description = "Simple volume control";
	infos->Version = "1.0";
	return S_OK;
}
ULONG VDJ_API CLocoDog4::Release()
{
	//Do any cleanup from OnLoad() here
	delete this;
	return 0;
}
HRESULT VDJ_API CLocoDog4::OnProcessSamples(float *buffer, int nb)
{
	float SampleOut_Left, SampleOut_Right;
	float SampleIn_Left, SampleIn_Right;
	int i;

	for (i = 0; i < nb; i++)
	{
		SampleIn_Left = buffer[2 * i];
		SampleIn_Right = buffer[2 * i + 1];

		SampleOut_Left = parSliderVol * SampleIn_Left;
		SampleOut_Right = parSliderVol * SampleIn_Right;

		buffer[2 * i] = SampleOut_Left;
		buffer[2 * i + 1] = SampleOut_Right;
	}
return S_OK;
}

HRESULT VDJ_API CLocoDog4::OnParameter(int id)
{
	switch (id)
	{
	case LocoDog4_Param_Slider_Vol:
		parSliderVol;
		break;

	}


	return S_OK;
}

HRESULT VDJ_API CLocoDog4::OnGetParameterString(int id, char *outParam, int outParamSize)
{
	return E_NOTIMPL;
}

HRESULT VDJ_API CLocoDog4::OnStart()
{
	return S_OK;
}

HRESULT VDJ_API CLocoDog4::OnStop()
{
	return S_OK;
}