Update of /cvsroot/audacity/audacity-src/src/effects
In directory 23jxhf1.ch3.sourceforge.com:/tmp/cvs-serv1992
Added Files:
Contrast.cpp Contrast.h
Log Message:
New 'analyze' effect.
--- NEW FILE: Contrast.cpp ---
/**********************************************************************
Audacity: A Digital Audio Editor
Contrast.cpp
*******************************************************************//**
\class EffectContrast
\brief An effect to measure the difference between two sections of audio
*//****************************************************************//**
\class ContrastDialog
\brief Dialog used with EffectContrast
*//*******************************************************************/
#include "../Audacity.h"
#include "Contrast.h"
#include "../Envelope.h"
#include "../FFT.h"
#include "../WaveTrack.h"
#include "../Prefs.h"
#include "../Project.h"
#include "../FileNames.h"
#include <math.h>
#if defined(__WXMSW__) && !defined(__CYGWIN__)
#include <float.h>
#define finite(x) _finite(x)
#endif
// all these headers may not be needed
#include <wx/file.h>
#include <wx/ffile.h>
#include <wx/bitmap.h>
#include <wx/brush.h>
#include <wx/button.h>
#include <wx/dcmemory.h>
#include <wx/image.h>
#include <wx/intl.h>
#include <wx/msgdlg.h>
#include <wx/sizer.h>
#include <wx/statbox.h>
#include <wx/stattext.h>
#include <wx/textctrl.h>
#include <wx/valtext.h>
#include "../AudacityApp.h"
#include "../PlatformCompatibility.h"
EffectContrast::EffectContrast()
{
}
EffectContrast::~EffectContrast()
{
return;
}
bool EffectContrast::PromptUser()
{
ContrastDialog dlog(this, mParent);
dlog.TransferDataToWindow();
dlog.CentreOnParent();
dlog.ShowModal();
return false;
}
float EffectContrast::GetDB()
{
float rms = float(0.0);
TrackListIterator iter(mWaveTracks);
Track *t = iter.First();
if(mT0 >= mT1)
{ // do something 'reasonable' in this case
mT0 = (mT0 - mT1)/2 - 0.25;
mT1 = mT0 + 0.5;
}
if(mT0 < t->GetStartTime())
mT0 = t->GetStartTime();
if(mT1 > t->GetEndTime())
mT1 = t->GetEndTime();
while(t) { // this isn't quite right. What to do if more than one track
selected?
((WaveTrack *)t)->GetRMS(&rms, mT0, mT1);
t = iter.Next();
}
return 20.0*log10(fabs(rms));
}
double EffectContrast::GetStartTime()
{
return(mT0);
}
void EffectContrast::SetStartTime(double t)
{
mT0 = t;
}
double EffectContrast::GetEndTime()
{
return(mT1);
}
void EffectContrast::SetEndTime(double t)
{
mT1 = t;
}
bool EffectContrast::Process()
{
wxMessageBox(_("Hello.\n")); // you should never see this!
return true;
}
bool EffectContrast::CheckWhetherSkipEffect()
{
return true;
}
// WDR: class implementations
//----------------------------------------------------------------------------
// ContrastDialog
//----------------------------------------------------------------------------
// WDR: event table for ContrastDialog
enum {
ID_BUTTON_GETFOREGROUND = 10001,
ID_BUTTON_GETBACKGROUND,
ID_BACKGROUNDSTART_TEXT,
ID_BACKGROUNDEND_TEXT,
ID_BACKGROUNDDB_TEXT,
ID_FOREGROUNDSTART_TEXT,
ID_FOREGROUNDEND_TEXT,
ID_FOREGROUNDDB_TEXT,
ID_RESULTS_TEXT,
ID_RESULTSDB_TEXT
};
BEGIN_EVENT_TABLE(ContrastDialog,wxDialog)
EVT_BUTTON(wxID_OK, ContrastDialog::OnOK)
EVT_BUTTON(ID_BUTTON_GETFOREGROUND, ContrastDialog::OnGetForegroundDB)
EVT_BUTTON(ID_BUTTON_GETBACKGROUND, ContrastDialog::OnGetBackgroundDB)
EVT_TEXT(ID_FOREGROUNDSTART_TEXT, ContrastDialog::OnForegroundStartText)
EVT_TEXT(ID_FOREGROUNDEND_TEXT, ContrastDialog::OnForegroundEndText)
EVT_TEXT(ID_BACKGROUNDSTART_TEXT, ContrastDialog::OnBackgroundStartText)
EVT_TEXT(ID_BACKGROUNDEND_TEXT, ContrastDialog::OnBackgroundEndText)
END_EVENT_TABLE()
ContrastDialog::ContrastDialog(EffectContrast * effect,
wxWindow *parent) :
EffectDialog( parent, _("WCAG2 Contrast Analyzer"), ANALYZE_EFFECT)
{
m_pEffect = effect;
// NULL out the control members until the controls are created.
m_pButton_GetForeground = NULL;
m_pButton_GetBackground = NULL;
// gPrefs->Read(wxT("/Contrast/foregrounddB"), &foregrounddB, 0.0);
gPrefs->Read(wxT("/Contrast/startTimeF"), &startTimeF, 0.0);
gPrefs->Read(wxT("/Contrast/endTimeF"), &endTimeF, 0.0);
// gPrefs->Read(wxT("/Contrast/backgrounddB"), &backgrounddB, 0.0);
gPrefs->Read(wxT("/Contrast/startTimeB"), &startTimeB, 0.0);
gPrefs->Read(wxT("/Contrast/endTimeB"), &endTimeB, 0.0);
m_pEffect->SetStartTime(startTimeF);
m_pEffect->SetEndTime(endTimeF);
foregrounddB = m_pEffect->GetDB();
m_pEffect->SetStartTime(startTimeB);
m_pEffect->SetEndTime(endTimeB);
backgrounddB = m_pEffect->GetDB();
Init();
}
void ContrastDialog::OnGetForegroundDB( wxCommandEvent &event )
{
m_pEffect->SetStartTime(startTimeF);
m_pEffect->SetEndTime(endTimeF);
foregrounddB = m_pEffect->GetDB();
mForegroundRMSText->SetLabel(wxString::Format(_("%.1f dB"), foregrounddB));
results();
}
void ContrastDialog::OnGetBackgroundDB( wxCommandEvent &event )
{
m_pEffect->SetStartTime(startTimeB);
m_pEffect->SetEndTime(endTimeB);
backgrounddB = m_pEffect->GetDB();
mBackgroundRMSText->SetLabel(wxString::Format(_("%.1f dB"), backgrounddB));
results();
}
void ContrastDialog::OnOK(wxCommandEvent &event)
{
gPrefs->Write(wxT("/Contrast/startTimeF"), startTimeF);
gPrefs->Write(wxT("/Contrast/endTimeF"), endTimeF);
gPrefs->Write(wxT("/Contrast/startTimeB"), startTimeB);
gPrefs->Write(wxT("/Contrast/endTimeB"), endTimeB);
EndModal(0);
}
void ContrastDialog::PopulateOrExchange(ShuttleGui & S)
{
wxTextValidator vld(wxFILTER_NUMERIC);
wxString number;
/* wxString step1Label;
wxString step1Prompt;
wxString step2Label;
wxString step2Prompt;
step1Label = _("Step 1");
step1Prompt = _("Select the dialogue (foreground) then click Measure
Foreground:");
step2Label = _("Step 2");
step2Prompt = _("Select the background noise to measure, then click Measure
Background:");*/
S.StartHorizontalLay(wxCENTER, false);
{
S.AddTitle(_("Contrast Analyzer"));
}
S.EndHorizontalLay();
/* S.StartStatic(step1Label);
{
S.AddVariableText(step1Prompt);
m_pButton_GetBackground = S.Id(ID_BUTTON_GETFOREGROUND).
AddButton(_("Measure Foreground"));
}
S.EndStatic();
S.StartStatic(step2Label);
{
S.AddVariableText(step2Prompt);
m_pButton_GetForeground = S.Id(ID_BUTTON_GETBACKGROUND).
AddButton(_("Measure Background"));
}
S.EndStatic();*/
S.StartStatic( _("Parameters") );
{
S.StartMultiColumn(5, wxEXPAND);
{
// Headings
S.AddFixedText(_(" "), false);
S.AddFixedText(_("Start"), false);
S.AddFixedText(_("End"), false);
S.AddFixedText(_(""), false); // spacer
S.AddFixedText(_("Volume"), false);
//Foreground
S.AddFixedText(_("Foreground:"), false);
S.StartMultiColumn(2, wxCENTER);
{
mForegroundStartText =
S.Id(ID_FOREGROUNDSTART_TEXT).AddTextBox(_(""), wxT(""), 12);
mForegroundStartText->SetValidator(vld);
number = wxString::Format(wxT("%.2f"), startTimeF);
mForegroundStartText->ChangeValue(number);
}
S.EndMultiColumn();
S.StartMultiColumn(3, wxCENTER);
{
mForegroundEndText = S.Id(ID_FOREGROUNDEND_TEXT).AddTextBox(_(""),
wxT(""), 12);
mForegroundEndText->SetValidator(vld);
number = wxString::Format(wxT("%.2f"), endTimeF);
mForegroundEndText->ChangeValue(number);
S.AddFixedText(_("seconds"), false);
}
S.EndMultiColumn();
m_pButton_GetForeground =
S.Id(ID_BUTTON_GETFOREGROUND).AddButton(_("Measure"));
mForegroundRMSText=S.Id(ID_FOREGROUNDDB_TEXT).AddVariableText(wxString::Format(wxT("%.1f
dB"), foregrounddB));
//Background
S.AddFixedText(_("Background:"));
S.StartMultiColumn(2, wxCENTER);
{
mBackgroundStartText =
S.Id(ID_BACKGROUNDSTART_TEXT).AddTextBox(_(""), wxT(""), 12);
mBackgroundStartText->SetValidator(vld);
number = wxString::Format(wxT("%.2f"), startTimeB);
mBackgroundStartText->ChangeValue(number);
}
S.EndMultiColumn();
S.StartMultiColumn(3, wxCENTER);
{
mBackgroundEndText = S.Id(ID_BACKGROUNDEND_TEXT).AddTextBox(_(""),
wxT(""), 12);
mBackgroundEndText->SetValidator(vld);
number = wxString::Format(wxT("%.2f"), endTimeB);
mBackgroundEndText->ChangeValue(number);
S.AddFixedText(_("seconds"));
}
S.EndMultiColumn();
m_pButton_GetBackground =
S.Id(ID_BUTTON_GETBACKGROUND).AddButton(_("Measure"));
mBackgroundRMSText=S.Id(ID_BACKGROUNDDB_TEXT).AddVariableText(wxString::Format(wxT("%.1f
dB"), backgrounddB));
}
S.EndMultiColumn();
}
S.EndStatic();
//Result
S.StartStatic( _("Result") );
{
S.StartMultiColumn(2, wxCENTER);
{
S.AddFixedText(_("Contrast Result:"));
mPassFailText =
S.Id(ID_RESULTS_TEXT).AddVariableText(wxString::Format(wxT("%s"), _("Fail")));
S.AddFixedText(_("Difference:"));
mDiffText =
S.Id(ID_RESULTSDB_TEXT).AddVariableText(wxString::Format(wxT("%.1f Average
RMS"), foregrounddB - backgrounddB));
}
S.EndMultiColumn();
}
S.EndStatic();
results();
}
void ContrastDialog::OnForegroundStartText(wxCommandEvent & event)
{
wxString val = mForegroundStartText->GetValue();
val.ToDouble(&startTimeF);
}
void ContrastDialog::OnForegroundEndText(wxCommandEvent & event)
{
wxString val = mForegroundEndText->GetValue();
val.ToDouble(&endTimeF);
}
void ContrastDialog::OnBackgroundStartText(wxCommandEvent & event)
{
wxString val = mBackgroundStartText->GetValue();
val.ToDouble(&startTimeB);
}
void ContrastDialog::OnBackgroundEndText(wxCommandEvent & event)
{
wxString val = mBackgroundEndText->GetValue();
val.ToDouble(&endTimeB);
}
void ContrastDialog::results()
{
if(foregrounddB - backgrounddB > 20)
mPassFailText->SetLabel(_("WCAG2 Pass"));
else
mPassFailText->SetLabel(_("WCAG2 Fail"));
mDiffText->SetLabel(wxString::Format(wxT("%.1f dB Average RMS"),
foregrounddB - backgrounddB));
}
// Indentation settings for Vim and Emacs and unique identifier for Arch, a
// version control system. Please do not modify past this point.
//
// Local Variables:
// c-basic-offset: 3
// indent-tabs-mode: nil
// End:
//
// vim: et sts=3 sw=3
// arch-tag: 685e0d8c-89eb-427b-8933-af606cf33c2b
--- NEW FILE: Contrast.h ---
/**********************************************************************
Audacity: A Digital Audio Editor
Contrast.h
**********************************************************************/
#ifndef __AUDACITY_EFFECT_CONTRAST__
#define __AUDACITY_EFFECT_CONTRAST__
#include "Effect.h"
#include <wx/dialog.h>
#include <wx/slider.h>
class wxButton;
class wxSizer;
class wxString;
class Envelope;
class WaveTrack;
class EffectContrast: public Effect {
public:
EffectContrast();
virtual ~EffectContrast();
virtual wxString GetEffectName() {
return wxString(_("Contrast..."));
}
virtual int GetEffectFlags() {
return BUILTIN_EFFECT | ANALYZE_EFFECT;
}
virtual std::set<wxString> GetEffectCategories() {
std::set<wxString> result;
result.insert(wxT("http://audacityteam.org/namespace#Contrast";));
return result;
}
virtual wxString GetEffectIdentifier() {
return wxString(wxT("Contrast"));
}
virtual wxString GetEffectAction() {
if (mDoBackground)
return wxString(_("Measuring background"));
else
return wxString(_("Measuring foreground"));
}
virtual bool PromptUser();
virtual bool CheckWhetherSkipEffect();
virtual bool Process();
private:
bool mDoBackground;
float GetDB();
double GetStartTime();
void SetStartTime(double);
double GetEndTime();
void SetEndTime(double);
friend class ContrastDialog;
};
// WDR: class declarations
//----------------------------------------------------------------------------
// ContrastDialog
//----------------------------------------------------------------------------
// Declare window functions
class ContrastDialog: public EffectDialog
{
public:
// constructors and destructors
ContrastDialog(EffectContrast * effect,
wxWindow *parent);
wxSizer *MakeContrastDialog(bool call_fit = true,
bool set_sizer = true);
void PopulateOrExchange(ShuttleGui & S);
void UpdateDisplay();
private:
// handlers
void OnGetForegroundDB( wxCommandEvent &event );
void OnGetBackgroundDB( wxCommandEvent &event );
void OnForegroundStartText(wxCommandEvent & event);
void OnForegroundEndText(wxCommandEvent & event);
void OnBackgroundStartText(wxCommandEvent & event);
void OnBackgroundEndText(wxCommandEvent & event);
void results();
void OnOK( wxCommandEvent &event );
wxStaticText *mForegroundRMSText;
wxTextCtrl *mForegroundStartText;
wxTextCtrl *mForegroundEndText;
wxStaticText *mBackgroundRMSText;
wxTextCtrl *mBackgroundStartText;
wxTextCtrl *mBackgroundEndText;
wxStaticText *mPassFailText;
wxStaticText *mDiffText;
double foregrounddB;
double startTimeF;
double endTimeF;
double backgrounddB;
double startTimeB;
double endTimeB;
public:
EffectContrast * m_pEffect;
wxButton * m_pButton_GetBackground;
wxButton * m_pButton_GetForeground;
private:
DECLARE_EVENT_TABLE()
};
#endif
// Indentation settings for Vim and Emacs and unique identifier for Arch, a
// version control system. Please do not modify past this point.
//
// Local Variables:
// c-basic-offset: 3
// indent-tabs-mode: nil
// End:
//
// vim: et sts=3 sw=3
// arch-tag: c42ae8d9-7625-4bf9-a719-e5d082430ed5
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