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682 lines
17 KiB
682 lines
17 KiB
#include <windows.h>
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#include "compressp.h"
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#include "clone.h"
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STD_CREATE(Compressor)
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundCompressorDMO::QueryInterface
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//
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// Subclass can override if it wants to implement more interfaces.
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//
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STDMETHODIMP CDirectSoundCompressorDMO::NDQueryInterface(THIS_ REFIID riid, LPVOID *ppv)
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{
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IMP_DSDMO_QI(riid,ppv);
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if (riid == IID_IPersist)
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{
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return GetInterface((IPersist*)this, ppv);
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}
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else if (riid == IID_IMediaObject)
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{
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return GetInterface((IMediaObject*)this, ppv);
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}
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else if (riid == IID_IDirectSoundFXCompressor)
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{
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return GetInterface((IDirectSoundFXCompressor*)this, ppv);
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}
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else if (riid == IID_ISpecifyPropertyPages)
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{
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return GetInterface((ISpecifyPropertyPages*)this, ppv);
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}
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else if (riid == IID_IMediaParams)
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{
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return GetInterface((IMediaParams*)this, ppv);
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}
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else if (riid == IID_IMediaParamInfo)
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{
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return GetInterface((IMediaParamInfo*)this, ppv);
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}
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else
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return CComBase::NDQueryInterface(riid, ppv);
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundCompressorDMO::CDirectSoundCompressorDMO
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//
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CDirectSoundCompressorDMO::CDirectSoundCompressorDMO( IUnknown *pUnk, HRESULT *phr )
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: CComBase( pUnk, phr),
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m_fDirty(false)
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// { EAX: put init data here if any (otherwise use Discontinuity).
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// } EAX
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{
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m_EaxSamplesPerSec = 22050;
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m_LeftDelay. Init(0);
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m_RightDelay.Init(0);
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundCompressorDMO::Init()
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//
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HRESULT CDirectSoundCompressorDMO::Init()
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{
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DSFXCompressor compress;
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HRESULT hr;
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// Force recalc of all internal parameters
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//
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hr = GetAllParameters(&compress);
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if (SUCCEEDED(hr)) hr = SetAllParameters(&compress);
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if (SUCCEEDED(hr)) hr = m_LeftDelay. Init(m_EaxSamplesPerSec);
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if (SUCCEEDED(hr) && m_cChannels == 2) {
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hr = m_RightDelay.Init(m_EaxSamplesPerSec);
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}
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if (SUCCEEDED(hr)) hr = Discontinuity();
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return hr;
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}
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const MP_CAPS g_capsAll = MP_CAPS_CURVE_JUMP | MP_CAPS_CURVE_LINEAR | MP_CAPS_CURVE_SQUARE | MP_CAPS_CURVE_INVSQUARE | MP_CAPS_CURVE_SINE;
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static ParamInfo g_params[] =
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{
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// index type caps min, max, neutral, unit text, label, pwchText
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CPFP_Gain, MPT_FLOAT, g_capsAll, DSFXCOMPRESSOR_GAIN_MIN, DSFXCOMPRESSOR_GAIN_MAX, 0, L"", L"Gain", L"",
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CPFP_Attack, MPT_FLOAT, g_capsAll, DSFXCOMPRESSOR_ATTACK_MIN, DSFXCOMPRESSOR_ATTACK_MAX, 10, L"", L"Attack", L"",
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CPFP_Release, MPT_FLOAT, g_capsAll, DSFXCOMPRESSOR_RELEASE_MIN, DSFXCOMPRESSOR_RELEASE_MAX, 200, L"", L"Release", L"",
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CPFP_Threshold, MPT_FLOAT, g_capsAll, DSFXCOMPRESSOR_THRESHOLD_MIN, DSFXCOMPRESSOR_THRESHOLD_MAX, -20, L"", L"Threshold", L"",
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CPFP_Ratio, MPT_FLOAT, g_capsAll, DSFXCOMPRESSOR_RATIO_MIN, DSFXCOMPRESSOR_RATIO_MAX, 3, L"", L"Ratio", L"",
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CPFP_Predelay, MPT_FLOAT, g_capsAll, DSFXCOMPRESSOR_PREDELAY_MIN, DSFXCOMPRESSOR_PREDELAY_MAX, 4, L"", L"Predelay", L"",
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};
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HRESULT CDirectSoundCompressorDMO::InitOnCreation()
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{
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HRESULT hr = InitParams(1, &GUID_TIME_REFERENCE, 0, 0, sizeof(g_params)/sizeof(*g_params), g_params);
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return hr;
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundCompressorDMO::~CDirectSoundCompressorDMO
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//
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CDirectSoundCompressorDMO::~CDirectSoundCompressorDMO()
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{
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m_LeftDelay. Init(-1);
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m_RightDelay.Init(-1);
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundCompressorDMO::Clone
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//
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STDMETHODIMP CDirectSoundCompressorDMO::Clone(IMediaObjectInPlace **pp)
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{
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return StandardDMOClone<CDirectSoundCompressorDMO, DSFXCompressor>(this, pp);
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}
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//
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// Bump - bump the delay pointers.
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//
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void CDirectSoundCompressorDMO::Bump(void)
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{
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// EAX {
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m_LeftDelay.Bump();
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m_RightDelay.Bump();
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// }
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}
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HRESULT CDirectSoundCompressorDMO::Discontinuity()
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{
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// { EAX
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m_LeftDelay.ZeroBuffer();
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if (m_cChannels == 2) {
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m_RightDelay.ZeroBuffer();
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}
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m_Envelope = m_CompGain = 0;
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// } EAX
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return S_OK;
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}
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//////////////////////////////////////////////////////////////////////////////
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float myexp( float finput, unsigned long maxexponent)
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{
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unsigned long mantissa, exponent, exponentwidth ;
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long sign;
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long input;
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#ifdef DONTUSEi386
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_asm {
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fld finput
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fistp input
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}
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#else
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input = (int)(finput);
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#endif
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mantissa = input & 0x7FFFFFFFL ;
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sign = input & 0x80000000L ; /* Preserve sign */
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exponentwidth = 5;
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if ((0x80000000L & input) != 0) { /* Take absolute value of input */
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input = -input ;
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}
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/* Left-justify the mantissa and right-justify the exponent to separate */
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mantissa = input << exponentwidth ;
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exponent = input >> ( 31-exponentwidth ) ;
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/*
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* Insert the implied '1' at the mantissa MSB if not a zero exponent and
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* adjust it.
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*/
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if( exponent != 0 ) {
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mantissa = mantissa | 0x80000000L ;
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exponent-- ;
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}
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mantissa = mantissa >> ( maxexponent-exponent ) ;
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if( sign != 0 )
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mantissa = ~mantissa ;
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float x = (float)mantissa;
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return(x);
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}
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__forceinline void CDirectSoundCompressorDMO::DoOneSampleMono(int *l)
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{
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int Pos0, PosX;
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float inPortL = (float)*l;
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float outPortL;
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float temp1, temp2;
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temp1 = inPortL;
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// left_delay[] = temp1;
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Pos0 = m_LeftDelay.Pos(0);
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m_LeftDelay[Pos0] = temp1;
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temp1 = (float)fabs(temp1);
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// Take the log
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#define LOG(x,y) mylog(x,y)
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temp1 = (float)fabs(LOG(temp1 * 0x8000,31));
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temp1 /= 0x80000000;
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// Sidechain level meter
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#ifndef MAX
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#define MAX(x,y) ((x > y) ? x : y)
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#endif
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m_EaxCompInputPeak = MAX(temp1, m_EaxCompInputPeak);
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// Envelope follower
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temp2 = temp1 >= m_Envelope ? m_EaxAttackCoef : -m_EaxAttackCoef;
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temp2 = temp2 <= 0 ? m_EaxReleaseCoef : temp2;
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// m_Envelope = temp2 : temp1 < m_Envelope;
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m_Envelope = Interpolate(temp1, m_Envelope, temp2);
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m_CompGain = MAX(m_Envelope, m_EaxCompThresh);
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// Log Difference between signal level and threshold level
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m_CompGain = m_EaxCompThresh - m_CompGain;
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#define cPOSFSCALE (float)0.9999999
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m_CompGain = cPOSFSCALE + m_CompGain * m_EaxCompressionRatio;
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// Compressor gain reduction meter
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#ifndef MIN
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#define MIN(x,y) ((x < y) ? x : y)
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#endif
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#define EXP(x,y) myexp(x,y)
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m_EaxCompGainMin= MIN(m_CompGain, m_EaxCompGainMin);
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m_CompGain = (float)EXP(m_CompGain * 0x80000000, 31);
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m_CompGain /= 0x80000000;
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// outPortL = left_point[@] * compGain;
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PosX = m_LeftDelay.LastPos((int)m_EaxLeftPoint);
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outPortL = m_LeftDelay[PosX] * m_CompGain;
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temp1 = outPortL * m_EaxGainBiasIP;
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outPortL = temp1 + outPortL * m_EaxGainBiasFP;
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*l = Saturate(outPortL);
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//Bump();
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m_LeftDelay.Bump();
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}
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__forceinline void CDirectSoundCompressorDMO::DoOneSample(int *l, int *r)
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{
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int Pos0, PosX;
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float inPortL = (float)*l;
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float inPortR = (float)*r;
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float outPortL, outPortR;
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float temp1, temp2;
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temp1 = inPortL;
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temp2 = inPortR;
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// left_delay[] = temp1;
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Pos0 = m_LeftDelay.Pos(0);
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m_LeftDelay[Pos0] = temp1;
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// right_delay[] = temp2;
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Pos0 = m_RightDelay.Pos(0);
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m_RightDelay[Pos0] = temp2;
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//Take the magnitude
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temp1 = (float)fabs(temp1);
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temp2 = (float)fabs(temp2);
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// Take the average
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// temp1 = 0.5 : temp1 < temp2;
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temp1 = (temp1 + temp2) / 2;
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// Take the log
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#define LOG(x,y) mylog(x,y)
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temp1 = (float)fabs(LOG(temp1 * 0x8000,31));
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temp1 /= 0x80000000;
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// Sidechain level meter
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#ifndef MAX
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#define MAX(x,y) ((x > y) ? x : y)
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#endif
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m_EaxCompInputPeak = MAX(temp1, m_EaxCompInputPeak);
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// Envelope follower
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temp2 = temp1 >= m_Envelope ? m_EaxAttackCoef : -m_EaxAttackCoef;
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temp2 = temp2 <= 0 ? m_EaxReleaseCoef : temp2;
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// m_Envelope = temp2 : temp1 < m_Envelope;
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m_Envelope = Interpolate(temp1, m_Envelope, temp2);
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m_CompGain = MAX(m_Envelope, m_EaxCompThresh);
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// Log Difference between signal level and threshold level
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m_CompGain = m_EaxCompThresh - m_CompGain;
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#define cPOSFSCALE (float)0.9999999
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m_CompGain = cPOSFSCALE + m_CompGain * m_EaxCompressionRatio;
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// Compressor gain reduction meter
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#ifndef MIN
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#define MIN(x,y) ((x < y) ? x : y)
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#endif
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#define EXP(x,y) myexp(x,y)
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m_EaxCompGainMin= MIN(m_CompGain, m_EaxCompGainMin);
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m_CompGain = (float)EXP(m_CompGain * 0x80000000, 31);
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m_CompGain /= 0x80000000;
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// outPortL = left_point[@] * compGain;
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PosX = m_LeftDelay.LastPos((int)m_EaxLeftPoint);
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outPortL = m_LeftDelay[PosX] * m_CompGain;
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// outPortR = right_point[@] * compGain;
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PosX = m_RightDelay.LastPos((int)m_EaxRightPoint);
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outPortR = m_RightDelay[PosX] * m_CompGain;
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temp1 = outPortL * m_EaxGainBiasIP;
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outPortL = temp1 + outPortL * m_EaxGainBiasFP;
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temp1 = outPortR * m_EaxGainBiasIP;
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outPortR = temp1 + outPortR * m_EaxGainBiasFP;
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*l = Saturate(outPortL);
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*r = Saturate(outPortR);
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Bump();
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundCompressorDMO::FBRProcess
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//
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HRESULT CDirectSoundCompressorDMO::FBRProcess(DWORD cCompressors, BYTE *pIn, BYTE *pOut)
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{
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// { EAX
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#define cb cCompressors
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#define pin pIn
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#define pout pOut
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if (m_cChannels == 1) {
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if (m_b8bit) {
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for (;cb > 0; --cb) {
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int i, j;
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i = *(pin+0)-128;
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i *=256;
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// j = i;
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DoOneSampleMono(&i);
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// i += j;
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// i /= 2;
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i /= 256;
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*(pout+0) = (unsigned char)(i + 128);
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pin += sizeof(unsigned char);
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pout += sizeof(unsigned char);
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}
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}
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else if (!m_b8bit) {
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for (;cb > 0; --cb) { // for (;cb > 0; cb -= sizeof(short)) {
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short int *psi = (short int *)pin;
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short int *pso = (short int *)pout;
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int i, j;
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i = *psi;
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// j = i;
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DoOneSampleMono(&i);
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// i += j;
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// i /= 2;
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*pso = (short)i;
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pin += sizeof(short);
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pout += sizeof(short);
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}
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}
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}
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else if (m_cChannels == 2) {
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if (m_b8bit) {
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for (;cb > 0; --cb) { // for (;cb > 0; cb -= 2 * sizeof(unsigned char)) {
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int i, j;
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i = *(pin+0)-128;
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j = *(pin+1)-128;
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i *=256; j *=256;
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DoOneSample(&i, &j);
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i /= 256; j /= 256;
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*(pout+0) = (unsigned char)(i + 128);
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*(pout+1) = (unsigned char)(j + 128);
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pin += 2 * sizeof(unsigned char);
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pout += 2 * sizeof(unsigned char);
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}
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}
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else if (!m_b8bit) {
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for (;cb > 0; --cb) { // for (;cb > 0; cb -= 2 * sizeof(short)) {
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short int *psi = (short int *)pin;
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short int *pso = (short int *)pout;
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int i, j;
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i = *(psi+0);
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j = *(psi+1);
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DoOneSample(&i, &j);
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*(pso+0) = (short)i;
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*(pso+1) = (short)j;
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pin += 2 * sizeof(short);
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pout += 2 * sizeof(short);
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}
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}
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}
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// } EAX
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return S_OK;
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundCompressorDMO::ProcessInPlace
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//
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HRESULT CDirectSoundCompressorDMO::ProcessInPlace(ULONG ulQuanta, LPBYTE pcbData, REFERENCE_TIME rtStart, DWORD dwFlags)
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{
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// Update parameter values from any curves that may be in effect.
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this->UpdateActiveParams(rtStart, *this);
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return FBRProcess(ulQuanta, pcbData, pcbData);
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// CDirectSoundCompressorDMO::SetParam
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//
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// { EAX
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// }
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HRESULT CDirectSoundCompressorDMO::SetParamInternal(DWORD dwParamIndex, MP_DATA value, bool fSkipPasssingToParamManager)
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{
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float fVal;
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if (!m_EaxSamplesPerSec) return DMO_E_TYPE_NOT_ACCEPTED; // NO TYPE!
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switch (dwParamIndex)
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{
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// { EAX
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case CPFP_Gain : {
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CHECK_PARAM(DSFXCOMPRESSOR_GAIN_MIN, DSFXCOMPRESSOR_GAIN_MAX);
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fVal = (float)pow(10, value/20); //Convert from dB to linear
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float _gainBiasIP, _gainBiasFP;
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double d;
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_gainBiasFP = (float)modf((double)fVal, &d);
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_gainBiasIP = (float)d;
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INTERPOLATE (GainBiasFP, TOFRACTION(_gainBiasFP));
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PUT_EAX_FVAL(GainBiasIP, TOFRACTION(_gainBiasIP));
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break;
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}
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case CPFP_Attack :
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CHECK_PARAM(DSFXCOMPRESSOR_ATTACK_MIN, DSFXCOMPRESSOR_ATTACK_MAX);
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m_EaxAttackCoef = (float)pow(10, -1/(value*m_EaxSamplesPerSec/1000));
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PUT_EAX_FVAL(AttackCoef, TOFRACTION(m_EaxAttackCoef));
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break;
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case CPFP_Release :
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CHECK_PARAM(DSFXCOMPRESSOR_RELEASE_MIN, DSFXCOMPRESSOR_RELEASE_MAX);
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m_EaxReleaseCoef = (float)pow(10, -1/(value*m_EaxSamplesPerSec/1000));
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break;
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case CPFP_Threshold : {
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CHECK_PARAM(DSFXCOMPRESSOR_THRESHOLD_MIN, DSFXCOMPRESSOR_THRESHOLD_MAX);
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fVal = (float)pow(10, value/20); //Convert from dB to linear
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float _compThresh;
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float a, b;
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a = (float)(pow(2, 26) * log(fVal * pow(2, 31))/log(2) + pow(2, 26));
|
|
b = (float)(pow(2, 31) - 1.0);
|
|
_compThresh = a < b ? a : b;
|
|
|
|
_compThresh /= (float)0x80000000;
|
|
|
|
PUT_EAX_FVAL(CompThresh, _compThresh);
|
|
break;
|
|
}
|
|
case CPFP_Ratio :
|
|
CHECK_PARAM(DSFXCOMPRESSOR_RATIO_MIN, DSFXCOMPRESSOR_RATIO_MAX);
|
|
|
|
m_EaxCompressionRatio = (float)(1.0 - 1.0/value);
|
|
|
|
PUT_EAX_FVAL(CompressionRatio, TOFRACTION(m_EaxCompressionRatio));
|
|
break;
|
|
|
|
case CPFP_Predelay : {
|
|
CHECK_PARAM(DSFXCOMPRESSOR_PREDELAY_MIN, DSFXCOMPRESSOR_PREDELAY_MAX);
|
|
|
|
float _length = (float)(value * m_EaxSamplesPerSec/1000.0);
|
|
|
|
PUT_EAX_LVAL(LeftPoint, _length + 2);
|
|
PUT_EAX_LVAL(RightPoint, _length + 2);
|
|
break;
|
|
}
|
|
/*
|
|
** Removed from PropertySet, Processing code left behind so we can resurrect later
|
|
**
|
|
case CPFP_CompMeterReset : {
|
|
CHECK_PARAM(DSFXCOMPRESSOR_COMPMETERRESET_MIN, DSFXCOMPRESSOR_COMPMETERRESET_MAX);
|
|
|
|
if(!value)
|
|
break; // return E_FAIL;
|
|
|
|
|
|
float InputPeak = m_EaxCompInputPeak;
|
|
float GainMin = m_EaxCompGainMin;
|
|
|
|
PUT_EAX_FVAL(CompInputPeak, 0);
|
|
PUT_EAX_FVAL(CompGainMin, 0.999999999);
|
|
|
|
InputPeak = (float)(186.0 * (InputPeak - 0.999999999)/0.999999999);
|
|
GainMin = - (float)(186.0 * (GainMin - 0.999999999)/0.999999999);
|
|
|
|
CParamsManager::SetParam(CPFP_CompMeterReset , 0);
|
|
|
|
if (!fSkipPasssingToParamManager)
|
|
CParamsManager::SetParam(CPFP_CompInputMeter , InputPeak);
|
|
|
|
if (!fSkipPasssingToParamManager)
|
|
CParamsManager::SetParam(CPFP_CompGainMeter , GainMin);
|
|
|
|
break;
|
|
}
|
|
*/
|
|
|
|
/* These values can't be set, only queried.
|
|
*/
|
|
|
|
/*
|
|
case CPFP_CompInputMeter :
|
|
CHECK_PARAM(DSFXCOMPRESSOR_COMPINPUTMETER_MIN, DSFXCOMPRESSOR_COMPINPUTMETER_MAX);
|
|
return E_FAIL;
|
|
|
|
case CPFP_CompGainMeter :
|
|
CHECK_PARAM(DSFXCOMPRESSOR_COMPGAINMETER_MIN, DSFXCOMPRESSOR_COMPGAINMETER_MAX);
|
|
return E_FAIL;
|
|
// } EAX
|
|
*/
|
|
default:
|
|
return E_FAIL;
|
|
}
|
|
|
|
// Let base class set this so it can handle all the rest of the param calls.
|
|
// Skip the base class if fSkipPasssingToParamManager. This indicates that we're calling the function
|
|
// internally using valuds that came from the base class -- thus there's no need to tell it values it
|
|
// already knows.
|
|
return fSkipPasssingToParamManager ? S_OK : CParamsManager::SetParam(dwParamIndex, value);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// CDirectSoundCompressorDMO::SetAllParameters
|
|
//
|
|
STDMETHODIMP CDirectSoundCompressorDMO::SetAllParameters(LPCDSFXCompressor pComp)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
|
|
// Check that the pointer is not NULL
|
|
if (pComp == NULL)
|
|
{
|
|
Trace(1,"ERROR: pComp is NULL\n");
|
|
hr = E_POINTER;
|
|
}
|
|
|
|
// Set the parameters
|
|
if (SUCCEEDED(hr)) hr = SetParam(CPFP_Gain, pComp->fGain);
|
|
if (SUCCEEDED(hr)) hr = SetParam(CPFP_Attack, pComp->fAttack);
|
|
if (SUCCEEDED(hr)) hr = SetParam(CPFP_Release, pComp->fRelease);
|
|
if (SUCCEEDED(hr)) hr = SetParam(CPFP_Threshold, pComp->fThreshold);
|
|
if (SUCCEEDED(hr)) hr = SetParam(CPFP_Ratio, pComp->fRatio);
|
|
if (SUCCEEDED(hr)) hr = SetParam(CPFP_Predelay, pComp->fPredelay);
|
|
|
|
/* These values can only be queried, not set. CPFP_CompMeterReset fills
|
|
* the values.
|
|
*/
|
|
// if (SUCCEEDED(hr)) hr = SetParam(CPFP_CompInputMeter, pComp->fCompInputMeter);
|
|
// if (SUCCEEDED(hr)) hr = SetParam(CPFP_CompGainMeter, pComp->fCompGainMeter);
|
|
|
|
m_fDirty = true;
|
|
return hr;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// CDirectSoundCompressorDMO::GetAllParameters
|
|
//
|
|
STDMETHODIMP CDirectSoundCompressorDMO::GetAllParameters(LPDSFXCompressor pCompressor)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
MP_DATA mpd;
|
|
|
|
if (pCompressor == NULL) return E_POINTER;
|
|
|
|
#define GET_PARAM(x,y) \
|
|
if (SUCCEEDED(hr)) { \
|
|
hr = GetParam(x, &mpd); \
|
|
if (SUCCEEDED(hr)) pCompressor->y = mpd; \
|
|
}
|
|
|
|
GET_PARAM(CPFP_Attack, fAttack);
|
|
GET_PARAM(CPFP_Release, fRelease);
|
|
GET_PARAM(CPFP_Threshold, fThreshold);
|
|
GET_PARAM(CPFP_Ratio, fRatio);
|
|
GET_PARAM(CPFP_Gain, fGain);
|
|
GET_PARAM(CPFP_Predelay, fPredelay);
|
|
|
|
return hr;
|
|
}
|
|
|
|
// GetClassID
|
|
//
|
|
// Part of the persistent file support. We must supply our class id
|
|
// which can be saved in a graph file and used on loading a graph with
|
|
// this fx in it to instantiate this filter via CoCreateInstance.
|
|
//
|
|
HRESULT CDirectSoundCompressorDMO::GetClassID(CLSID *pClsid)
|
|
{
|
|
if (pClsid==NULL) {
|
|
return E_POINTER;
|
|
}
|
|
*pClsid = GUID_DSFX_STANDARD_COMPRESSOR;
|
|
return NOERROR;
|
|
|
|
} // GetClassID
|
|
|