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https://github.com/cookiengineer/audacity
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Locate and position the current Audacity source code, and clear a variety of old junk out of the way into junk-branches
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src/prefs/QualityPrefs.cpp
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247
src/prefs/QualityPrefs.cpp
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/**********************************************************************
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Audacity: A Digital Audio Editor
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QualityPrefs.cpp
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Joshua Haberman
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James Crook
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*******************************************************************//**
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\class QualityPrefs
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\brief A PrefsPanel used for setting audio quality.
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*//*******************************************************************/
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#include "../Audacity.h"
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#include <wx/defs.h>
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#include "../AudioIO.h"
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#include "../Dither.h"
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#include "../Prefs.h"
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#include "../Resample.h"
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#include "../SampleFormat.h"
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#include "../ShuttleGui.h"
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#include "QualityPrefs.h"
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#define ID_SAMPLE_RATE_CHOICE 7001
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BEGIN_EVENT_TABLE(QualityPrefs, PrefsPanel)
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EVT_CHOICE(ID_SAMPLE_RATE_CHOICE, QualityPrefs::OnSampleRateChoice)
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END_EVENT_TABLE()
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QualityPrefs::QualityPrefs(wxWindow * parent)
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: PrefsPanel(parent, _("Quality"))
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{
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Populate();
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}
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QualityPrefs::~QualityPrefs()
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{
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}
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void QualityPrefs::Populate()
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{
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// First any pre-processing for constructing the GUI.
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GetNamesAndLabels();
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gPrefs->Read(wxT("/SamplingRate/DefaultProjectSampleRate"),
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&mOtherSampleRateValue,
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44100);
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//------------------------- Main section --------------------
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// Now construct the GUI itself.
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// Use 'eIsCreatingFromPrefs' so that the GUI is
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// initialised with values from gPrefs.
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ShuttleGui S(this, eIsCreatingFromPrefs);
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PopulateOrExchange(S);
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// ----------------------- End of main section --------------
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wxCommandEvent e;
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OnSampleRateChoice(e); // Enable/disable the control.
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}
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/// Gets the lists of names and lists of labels which are
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/// used in the choice controls.
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/// The names are what the user sees in the wxChoice.
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/// The corresponding labels are what gets stored.
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void QualityPrefs::GetNamesAndLabels()
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{
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//------------ Dither Names
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mDitherNames.Add(_("None")); mDitherLabels.Add(Dither::none);
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mDitherNames.Add(_("Rectangle")); mDitherLabels.Add(Dither::rectangle);
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mDitherNames.Add(_("Triangle")); mDitherLabels.Add(Dither::triangle);
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mDitherNames.Add(_("Shaped")); mDitherLabels.Add(Dither::shaped);
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//------------ Sample Rate Names
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// JKC: I don't understand the following comment.
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// Can someone please explain or correct it?
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// XXX: This should use a previously changed, but not yet saved
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// sound card setting from the "I/O" preferences tab.
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// LLL: It means that until the user clicks "Ok" in preferences, the
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// GetSupportedSampleRates() call should use the devices they
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// may have changed on the Audio I/O page. As coded, the sample
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// rates it will return could be completely invalid as they will
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// be what's supported by the devices that were selected BEFORE
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// coming into preferences.
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//
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// GetSupportedSampleRates() allows passing in device names, but
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// how do you get at them as they are on the Audio I/O page????
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for (int i = 0; i < AudioIO::NumStandardRates; i++) {
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int iRate = AudioIO::StandardRates[i];
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mSampleRateLabels.Add(iRate);
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mSampleRateNames.Add(wxString::Format(wxT("%i Hz"), iRate));
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}
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mSampleRateNames.Add(_("Other..."));
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// The label for the 'Other...' case can be any value at all.
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mSampleRateLabels.Add(44100); // If chosen, this value will be overwritten
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//------------- Sample Format Names
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mSampleFormatNames.Add(wxT("16-bit")); mSampleFormatLabels.Add(int16Sample);
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mSampleFormatNames.Add(wxT("24-bit")); mSampleFormatLabels.Add(int24Sample);
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mSampleFormatNames.Add(wxT("32-bit float")); mSampleFormatLabels.Add(floatSample);
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//------------- Converter Names
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// We used to set and get best/fast method via Resample.cpp.
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// Need to ensure that preferences strings in Resample.cpp match.
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// int converterHQ = Resample::GetBestMethod();
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// int converter = Resample::GetFastMethod();
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int numConverters = Resample::GetNumMethods();
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for (int i = 0; i < numConverters; i++) {
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mConverterNames.Add(Resample::GetMethodName(i));
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mConverterLabels.Add(i);
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}
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}
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void QualityPrefs::PopulateOrExchange(ShuttleGui & S)
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{
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S.SetBorder(2);
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S.StartStatic(_("Sampling"));
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{
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S.StartMultiColumn(2);
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{
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S.AddPrompt(_("Default Sample &Rate:"));
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S.StartMultiColumn(2);
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{
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// If the value in Prefs isn't in the list, then we want
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// the last item, 'Other...' to be shown.
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S.SetNoMatchSelector(mSampleRateNames.GetCount() - 1);
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// First the choice...
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// We make sure it uses the ID we want, so that we get changes
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S.Id(ID_SAMPLE_RATE_CHOICE);
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// We make sure we have a pointer to it, so that we can drive it.
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mSampleRates = S.TieChoice(wxT(""),
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wxT("/SamplingRate/DefaultProjectSampleRate"),
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AudioIO::GetOptimalSupportedSampleRate(),
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mSampleRateNames,
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mSampleRateLabels);
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S.SetSizeHints(mSampleRateNames);
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// Now do the edit box...
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mOtherSampleRate = S.TieTextBox(wxT(""),
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mOtherSampleRateValue,
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15);
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}
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S.EndHorizontalLay();
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S.TieChoice(_("Default Sample &Format:"),
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wxT("/SamplingRate/DefaultProjectSampleFormat"),
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floatSample,
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mSampleFormatNames,
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mSampleFormatLabels);
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S.SetSizeHints(mSampleFormatNames);
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}
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S.EndMultiColumn();
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}
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S.EndStatic();
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S.StartStatic(_("Real-time Conversion"));
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{
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S.StartMultiColumn(2, wxEXPAND);
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{
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S.SetStretchyCol(2);
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S.TieChoice(_("Sample Rate Con&verter:"),
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Resample::GetFastMethodKey(),
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Resample::GetFastMethodDefault(),
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mConverterNames,
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mConverterLabels),
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S.SetSizeHints(mConverterNames);
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S.TieChoice(_("&Dither:"),
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wxT("/Quality/DitherAlgorithm"),
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Dither::none,
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mDitherNames,
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mDitherLabels);
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S.SetSizeHints(mDitherNames);
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}
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S.EndMultiColumn();
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}
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S.EndStatic();
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S.StartStatic(_("High-quality Conversion"));
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{
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S.StartMultiColumn(2);
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{
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S.TieChoice(_("Sample Rate Conver&ter:"),
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Resample::GetBestMethodKey(),
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Resample::GetBestMethodDefault(),
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mConverterNames,
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mConverterLabels),
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S.SetSizeHints(mConverterNames);
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S.TieChoice(_("Dit&her:"),
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wxT("/Quality/HQDitherAlgorithm"),
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Dither::shaped,
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mDitherNames,
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mDitherLabels);
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S.SetSizeHints(mDitherNames);
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}
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S.EndMultiColumn();
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}
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S.EndStatic();
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}
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/// Enables or disables the Edit box depending on
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/// whether we selected 'Other...' or not.
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void QualityPrefs::OnSampleRateChoice(wxCommandEvent & e)
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{
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int sel = mSampleRates->GetSelection();
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mOtherSampleRate->Enable(sel == (int)mSampleRates->GetCount() - 1);
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}
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bool QualityPrefs::Apply()
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{
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ShuttleGui S(this, eIsSavingToPrefs);
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PopulateOrExchange(S);
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// The complex compound control may have value 'other' in which case the
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// value in prefs comes from the second field.
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if (mOtherSampleRate->IsEnabled()) {
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gPrefs->Write(wxT("/SamplingRate/DefaultProjectSampleRate"), mOtherSampleRateValue);
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}
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// Tell CopySamples() to use these ditherers now
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InitDitherers();
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return true;
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}
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// Indentation settings for Vim and Emacs and unique identifier for Arch, a
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// version control system. Please do not modify past this point.
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//
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// Local Variables:
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// c-basic-offset: 3
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// indent-tabs-mode: nil
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// End:
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//
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// vim: et sts=3 sw=3
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// arch-tag: 135e3a62-5d8a-472d-ab66-462a5157e6b8
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