//CARRIER
// compare symbol with stored symbols to determine which wavetable should be made
void FMSet(fmsynth *x, t_symbol *s) {
if (s == sineMess)
FillSine(x);
else if (s == squareMess)
FillSquare(x);
else if (s == triMess)
FillTri(x);
else if (s == sawMess)
FillSaw(x);
else if (s == phasorMess)
FillPhasor(x);
//MODULATOR
else if (s == sineMessMod)
FillSineMod(x);
else if (s == squareMessMod)
FillSquareMod(x);
else if (s == triMessMod)
FillTriMod(x);
else if (s == sawMessMod)
FillSawMod(x);
else if (s == phasorMessMod)
FillPhasorMod(x);
}
void *FMNew (double minfreq, double maxfreq, double minModFreq, double maxModFreq, double dex, double minwin, double maxwin){
fmsynth *x;
//VARIABLE FOR CREATING THE OBJECT
x = (fmsynth *) object_alloc(myClass);
dsp_setup((t_pxobject *)x,0); //No signal inlets
floatin((t_object *) x, 6); // Inlet for max grain val
floatin((t_object *) x, 5); // Inlet for min grain val
floatin((t_object *) x, 4); // Inlet for Modulator Depth
floatin((t_object *) x, 3); // Inlet for min Modulator Freq
floatin((t_object *) x, 2); // Inlet for max Modulator Freq
floatin((t_object *) x, 1); // Inlet for Max Carrier Freq
outlet_new((t_pxobject *)x, "signal"); // Add a signal outlet
//INITIAL VALUES (A_GIMME seems to require this initialization
x->minFreq = minfreq = 220.0;
x->maxFreq = maxfreq = 300.0;
x->minModFreq = minModFreq = 0.;
x->maxModFreq = maxModFreq = 0.;
x->modIndex = dex= 1.;
x->min = minwin = 0.01;
x->max = maxwin = 0.1;
x->winFlag = 0;
// Allocate memory for wavetables:
x->waveTable = (double *)sysmem_newptr(sizeof(double) * kTableLength);
x->waveTable2 = (double *)sysmem_newptr(sizeof(double) * kTableLength);
x->window = (double *)sysmem_newptr(sizeof(double) * kTableLength);
FillSine(x); //Default waveform for Carrier is Sine
FillSineMod(x); //Default waveform for Modulator is Sine
FillWindow(x); //Default window is Hamming
return (x);
}
void SignalGenerator::startRunning()
{
IDeckLinkDisplayMode* videoDisplayMode = NULL;
BMDVideoOutputFlags videoOutputFlags = 0;
QVariant v;
// Determine the audio and video properties for the output stream
v = ui->outputSignalPopup->itemData(ui->outputSignalPopup->currentIndex());
outputSignal = (OutputSignal)v.value<int>();
v = ui->audioChannelPopup->itemData(ui->audioChannelPopup->currentIndex());
audioChannelCount = v.value<int>();
v = ui->audioSampleDepthPopup->itemData(ui->audioSampleDepthPopup->currentIndex());
audioSampleDepth = v.value<int>();
audioSampleRate = bmdAudioSampleRate48kHz;
//
// - Extract the IDeckLinkDisplayMode from the display mode popup menu (stashed in the item's tag)
v = ui->videoFormatPopup->itemData(ui->videoFormatPopup->currentIndex());
videoDisplayMode = (IDeckLinkDisplayMode *)v.value<void*>();
frameWidth = videoDisplayMode->GetWidth();
frameHeight = videoDisplayMode->GetHeight();
videoDisplayMode->GetFrameRate(&frameDuration, &frameTimescale);
// Calculate the number of frames per second, rounded up to the nearest integer. For example, for NTSC (29.97 FPS), framesPerSecond == 30.
framesPerSecond = (frameTimescale + (frameDuration-1)) / frameDuration;
if (videoDisplayMode->GetDisplayMode() == bmdModeNTSC ||
videoDisplayMode->GetDisplayMode() == bmdModeNTSC2398 ||
videoDisplayMode->GetDisplayMode() == bmdModePAL)
{
timeCodeFormat = bmdTimecodeVITC;
videoOutputFlags |= bmdVideoOutputVITC;
}
else
{
timeCodeFormat = bmdTimecodeRP188Any;
videoOutputFlags |= bmdVideoOutputRP188;
}
if (timeCode)
delete timeCode;
timeCode = new Timecode(framesPerSecond);
// Set the video output mode
if (deckLinkOutput->EnableVideoOutput(videoDisplayMode->GetDisplayMode(), videoOutputFlags) != S_OK)
goto bail;
// Set the audio output mode
if (deckLinkOutput->EnableAudioOutput(bmdAudioSampleRate48kHz, audioSampleDepth, audioChannelCount, bmdAudioOutputStreamTimestamped) != S_OK)
goto bail;
// Generate one second of audio tone
audioSamplesPerFrame = ((audioSampleRate * frameDuration) / frameTimescale);
audioBufferSampleLength = (framesPerSecond * audioSampleRate * frameDuration) / frameTimescale;
audioBuffer = malloc(audioBufferSampleLength * audioChannelCount * (audioSampleDepth / 8));
if (audioBuffer == NULL)
goto bail;
FillSine(audioBuffer, audioBufferSampleLength, audioChannelCount, audioSampleDepth);
// Generate a frame of black
if (deckLinkOutput->CreateVideoFrame(frameWidth, frameHeight, frameWidth*2, bmdFormat8BitYUV, bmdFrameFlagDefault, &videoFrameBlack) != S_OK)
goto bail;
FillBlack(videoFrameBlack);
// Generate a frame of colour bars
if (deckLinkOutput->CreateVideoFrame(frameWidth, frameHeight, frameWidth*2, bmdFormat8BitYUV, bmdFrameFlagDefault, &videoFrameBars) != S_OK)
goto bail;
FillColourBars(videoFrameBars);
// Begin video preroll by scheduling a second of frames in hardware
totalFramesScheduled = 0;
for (unsigned int i = 0; i < framesPerSecond; i++)
scheduleNextFrame(true);
// Begin audio preroll. This will begin calling our audio callback, which will start the DeckLink output stream.
totalAudioSecondsScheduled = 0;
if (deckLinkOutput->BeginAudioPreroll() != S_OK)
goto bail;
// Success; update the UI
running = true;
ui->startButton->setText("Stop");
// Disable the user interface while running (prevent the user from making changes to the output signal)
enableInterface(false);
return;
bail:
QMessageBox::critical(this, "Failed to start output", "Failed to start output");
// *** Error-handling code. Cleanup any resources that were allocated. *** //
stopRunning();
}
void CSignalGeneratorDlg::StartRunning ()
{
IDeckLinkDisplayMode* videoDisplayMode = NULL;
BMDVideoOutputFlags videoOutputFlags = bmdVideoOutputFlagDefault;
int curSelection;
CString videoFormatName;
curSelection = m_videoFormatCombo.GetCurSel();
m_videoFormatCombo.GetLBText(curSelection, videoFormatName);
if (videoFormatName.Find(_T(" 3D"), 0) != -1)
videoOutputFlags = bmdVideoOutputDualStream3D;
// Determine the audio and video properties for the output stream
m_outputSignal = (OutputSignal)m_outputSignalCombo.GetCurSel();
m_audioChannelCount = m_audioChannelCombo.GetItemData(m_audioChannelCombo.GetCurSel());
m_audioSampleDepth = (BMDAudioSampleType)m_audioSampleDepthCombo.GetItemData(m_audioSampleDepthCombo.GetCurSel());
m_audioSampleRate = bmdAudioSampleRate48kHz;
//
// - Extract the IDeckLinkDisplayMode from the display mode popup menu (stashed in the item's tag)
videoDisplayMode = (IDeckLinkDisplayMode*)m_videoFormatCombo.GetItemDataPtr(m_videoFormatCombo.GetCurSel());
m_frameWidth = videoDisplayMode->GetWidth();
m_frameHeight = videoDisplayMode->GetHeight();
videoDisplayMode->GetFrameRate(&m_frameDuration, &m_frameTimescale);
// Calculate the number of frames per second, rounded up to the nearest integer. For example, for NTSC (29.97 FPS), framesPerSecond == 30.
m_framesPerSecond = (unsigned long)((m_frameTimescale + (m_frameDuration-1)) / m_frameDuration);
// Set the video output mode
if (m_deckLinkOutput->EnableVideoOutput(videoDisplayMode->GetDisplayMode(), videoOutputFlags) != S_OK)
goto bail;
// Set the audio output mode
if (m_deckLinkOutput->EnableAudioOutput(bmdAudioSampleRate48kHz, m_audioSampleDepth, m_audioChannelCount, bmdAudioOutputStreamTimestamped) != S_OK)
goto bail;
// Generate one second of audio tone
m_audioSamplesPerFrame = (unsigned long)((m_audioSampleRate * m_frameDuration) / m_frameTimescale);
m_audioBufferSampleLength = (unsigned long)((m_framesPerSecond * m_audioSampleRate * m_frameDuration) / m_frameTimescale);
m_audioBuffer = HeapAlloc(GetProcessHeap(), 0, (m_audioBufferSampleLength * m_audioChannelCount * (m_audioSampleDepth / 8)));
if (m_audioBuffer == NULL)
goto bail;
FillSine(m_audioBuffer, m_audioBufferSampleLength, m_audioChannelCount, m_audioSampleDepth);
// Generate a frame of black
m_videoFrameBlack = CreateBlackFrame();
if (! m_videoFrameBlack)
goto bail;
// Generate a frame of colour bars
m_videoFrameBars = CreateBarsFrame();
if (! m_videoFrameBars)
goto bail;
// Begin video preroll by scheduling a second of frames in hardware
m_totalFramesScheduled = 0;
for (unsigned i = 0; i < m_framesPerSecond; i++)
ScheduleNextFrame(true);
// Begin audio preroll. This will begin calling our audio callback, which will start the DeckLink output stream.
m_totalAudioSecondsScheduled = 0;
if (m_deckLinkOutput->BeginAudioPreroll() != S_OK)
goto bail;
// Success; update the UI
m_running = true;
m_startButton.SetWindowText(_T("Stop"));
// Disable the user interface while running (prevent the user from making changes to the output signal)
EnableInterface(FALSE);
return;
bail:
// *** Error-handling code. Cleanup any resources that were allocated. *** //
StopRunning();
}
void TestPattern::StartRunning()
{
HRESULT result;
unsigned long audioSamplesPerFrame;
IDeckLinkVideoFrame* rightFrame;
VideoFrame3D* frame3D;
m_frameWidth = m_displayMode->GetWidth();
m_frameHeight = m_displayMode->GetHeight();
m_displayMode->GetFrameRate(&m_frameDuration, &m_frameTimescale);
// Calculate the number of frames per second, rounded up to the nearest integer. For example, for NTSC (29.97 FPS), framesPerSecond == 30.
m_framesPerSecond = (unsigned long)((m_frameTimescale + (m_frameDuration-1)) / m_frameDuration);
// Set the video output mode
result = m_deckLinkOutput->EnableVideoOutput(m_displayMode->GetDisplayMode(), m_config->m_outputFlags);
if (result != S_OK)
{
fprintf(stderr, "Failed to enable video output. Is another application using the card?\n");
goto bail;
}
// Set the audio output mode
result = m_deckLinkOutput->EnableAudioOutput(bmdAudioSampleRate48kHz, m_config->m_audioSampleDepth, m_config->m_audioChannels, bmdAudioOutputStreamContinuous);
if (result != S_OK)
{
fprintf(stderr, "Failed to enable audio output\n");
goto bail;
}
// Generate one second of audio
m_audioBufferSampleLength = (unsigned long)((m_framesPerSecond * m_audioSampleRate * m_frameDuration) / m_frameTimescale);
m_audioBuffer = valloc(m_audioBufferSampleLength * m_config->m_audioChannels * (m_config->m_audioSampleDepth / 8));
if (m_audioBuffer == NULL)
{
fprintf(stderr, "Failed to allocate audio buffer memory\n");
goto bail;
}
// Zero the buffer (interpreted as audio silence)
memset(m_audioBuffer, 0x0, (m_audioBufferSampleLength * m_config->m_audioChannels * m_config->m_audioSampleDepth / 8));
audioSamplesPerFrame = (unsigned long)((m_audioSampleRate * m_frameDuration) / m_frameTimescale);
if (m_outputSignal == kOutputSignalPip)
FillSine(m_audioBuffer, audioSamplesPerFrame, m_config->m_audioChannels, m_config->m_audioSampleDepth);
else
FillSine((void*)((unsigned long)m_audioBuffer + (audioSamplesPerFrame * m_config->m_audioChannels * m_config->m_audioSampleDepth / 8)), (m_audioBufferSampleLength - audioSamplesPerFrame), m_config->m_audioChannels, m_config->m_audioSampleDepth);
// Generate a frame of black
if (CreateFrame(&m_videoFrameBlack, FillBlack) != S_OK)
goto bail;
if (m_config->m_outputFlags & bmdVideoOutputDualStream3D)
{
frame3D = new VideoFrame3D(m_videoFrameBlack);
m_videoFrameBlack->Release();
m_videoFrameBlack = frame3D;
frame3D = NULL;
}
// Generate a frame of colour bars
if (CreateFrame(&m_videoFrameBars, FillForwardColourBars) != S_OK)
goto bail;
if (m_config->m_outputFlags & bmdVideoOutputDualStream3D)
{
if (CreateFrame(&rightFrame, FillReverseColourBars) != S_OK)
goto bail;
frame3D = new VideoFrame3D(m_videoFrameBars, rightFrame);
m_videoFrameBars->Release();
rightFrame->Release();
m_videoFrameBars = frame3D;
frame3D = NULL;
}
// Begin video preroll by scheduling a second of frames in hardware
m_totalFramesScheduled = 0;
m_totalFramesDropped = 0;
m_totalFramesCompleted = 0;
for (unsigned i = 0; i < m_framesPerSecond; i++)
ScheduleNextFrame(true);
// Begin audio preroll. This will begin calling our audio callback, which will start the DeckLink output stream.
m_audioBufferOffset = 0;
if (m_deckLinkOutput->BeginAudioPreroll() != S_OK)
{
fprintf(stderr, "Failed to begin audio preroll\n");
goto bail;
}
m_running = true;
return;
bail:
// *** Error-handling code. Cleanup any resources that were allocated. *** //
StopRunning();
}
