#include "fft.h"
#include "ardour_ui.h"
+#include "gui_thread.h"
#include <ardour/audio_buffer.h>
#include <ardour/data_type.h>
#include <gtkmm/checkbutton.h>
#include <iostream>
-
+#include <cmath>
PluginEqGui::PluginEqGui(boost::shared_ptr<ARDOUR::PluginInsert> pluginInsert)
: _min_dB(-12.0),
_max_dB(+12.0),
_step_dB(3.0),
- _impulse_fft(0)
+ _impulse_fft(0),
+ _signal_input_fft(0),
+ _signal_output_fft(0),
+ _plugin_insert(pluginInsert)
{
+ _signal_analysis_running = false;
_samplerate = ARDOUR_UI::instance()->the_session()->frame_rate();
- _plugin = pluginInsert->get_impulse_analysis_plugin();
+ _plugin = _plugin_insert->get_impulse_analysis_plugin();
_plugin->activate();
- set_buffer_size(4096);
+ set_buffer_size(4096, 16384);
+ //set_buffer_size(4096, 4096);
_log_coeff = (1.0 - 2.0 * (1000.0/(_samplerate/2.0))) / powf(1000.0/(_samplerate/2.0), 2.0);
_log_max = log10f(1 + _log_coeff);
ADD_DB_ROW(-12, +12, 3, "-12dB .. +12dB");
ADD_DB_ROW(-24, +24, 5, "-24dB .. +24dB");
ADD_DB_ROW(-36, +36, 6, "-36dB .. +36dB");
+ ADD_DB_ROW(-64, +64,12, "-64dB .. +64dB");
#undef ADD_DB_ROW
attach( *manage(_analysis_area), 1, 3, 1, 2);
attach( *manage(dBSelectBin), 1, 2, 2, 3, Gtk::SHRINK, Gtk::SHRINK);
attach( *manage(_phase_button), 2, 3, 2, 3, Gtk::SHRINK, Gtk::SHRINK);
+
+
+ // Connect the realtime signal collection callback
+ _plugin_insert->AnalysisDataGathered.connect( sigc::mem_fun(*this, &PluginEqGui::signal_collect_callback ));
}
PluginEqGui::~PluginEqGui()
}
delete _impulse_fft;
+ delete _signal_input_fft;
+ delete _signal_output_fft;
+
_plugin->deactivate();
// all gui objects are *manage'd by the inherited Table object
}
_analysis_area->queue_draw();
+
+ // TODO: Add graph legend!
}
void
-PluginEqGui::set_buffer_size(uint32_t size)
+PluginEqGui::set_buffer_size(uint32_t size, uint32_t signal_size)
{
- if (_buffer_size == size)
+ if (_buffer_size == size && _signal_buffer_size == signal_size)
return;
- _buffer_size = size;
- if (_impulse_fft) {
- delete _impulse_fft;
- _impulse_fft = 0;
+ FFT *tmp1 = _impulse_fft;
+ FFT *tmp2 = _signal_input_fft;
+ FFT *tmp3 = _signal_output_fft;
+
+ try {
+ _impulse_fft = new FFT(size);
+ _signal_input_fft = new FFT(signal_size);
+ _signal_output_fft = new FFT(signal_size);
+ } catch( ... ) {
+ // Don't care about lost memory, we're screwed anyhow
+ _impulse_fft = tmp1;
+ _signal_input_fft = tmp2;
+ _signal_output_fft = tmp3;
+ throw;
}
- _impulse_fft = new FFT(_buffer_size);
+ delete tmp1;
+ delete tmp2;
+ delete tmp3;
+
+ _buffer_size = size;
+ _signal_buffer_size = signal_size;
+ // These are for impulse analysis only, the signal analysis uses the actual
+ // number of I/O's for the plugininsert
uint32_t inputs = _plugin->get_info()->n_inputs.n_audio();
uint32_t outputs = _plugin->get_info()->n_outputs.n_audio();
+ // buffers for the signal analysis are ensured inside PluginInsert
uint32_t n_chans = std::max(inputs, outputs);
_bufferset.ensure_buffers(ARDOUR::DataType::AUDIO, n_chans, _buffer_size);
bool
PluginEqGui::timeout_callback()
{
- run_analysis();
+ if (!_signal_analysis_running) {
+ _signal_analysis_running = true;
+ _plugin_insert -> collect_signal_for_analysis(_signal_buffer_size);
+ }
+ run_impulse_analysis();
return true;
}
void
-PluginEqGui::run_analysis()
+PluginEqGui::signal_collect_callback(ARDOUR::BufferSet *in, ARDOUR::BufferSet *out)
+{
+ ENSURE_GUI_THREAD(bind (mem_fun (*this, &PluginEqGui::signal_collect_callback), in, out));
+
+ _signal_input_fft ->reset();
+ _signal_output_fft->reset();
+
+ for (uint32_t i = 0; i < _plugin_insert->input_streams().n_audio(); ++i) {
+ _signal_input_fft ->analyze(in ->get_audio(i).data(_signal_buffer_size, 0), FFT::HANN);
+ }
+
+ for (uint32_t i = 0; i < _plugin_insert->output_streams().n_audio(); ++i) {
+ _signal_output_fft->analyze(out->get_audio(i).data(_signal_buffer_size, 0), FFT::HANN);
+ }
+
+ _signal_input_fft ->calculate();
+ _signal_output_fft->calculate();
+
+ _signal_analysis_running = false;
+
+ // This signals calls expose_analysis_area()
+ _analysis_area->queue_draw();
+}
+
+void
+PluginEqGui::run_impulse_analysis()
{
uint32_t inputs = _plugin->get_info()->n_inputs.n_audio();
uint32_t outputs = _plugin->get_info()->n_outputs.n_audio();
cairo_paint(cr);
if (_phase_button->get_active()) {
- plot_phase(_analysis_area, cr);
+ plot_impulse_phase(_analysis_area, cr);
}
- plot_amplitude(_analysis_area, cr);
+ plot_impulse_amplitude(_analysis_area, cr);
+ // TODO: make this optional
+ plot_signal_amplitude_difference(_analysis_area, cr);
cairo_destroy(cr);
}
-#define PHASE_PROPORTION 0.6
+#define PHASE_PROPORTION 0.5
void
PluginEqGui::draw_scales_phase(Gtk::Widget *w, cairo_t *cr)
}
void
-PluginEqGui::plot_phase(Gtk::Widget *w, cairo_t *cr)
+PluginEqGui::plot_impulse_phase(Gtk::Widget *w, cairo_t *cr)
{
float x,y;
float avgY = 0.0;
int avgNum = 0;
+ // float width = w->get_width();
+ float height = w->get_height();
+
cairo_set_source_rgba(cr, 0.95, 0.3, 0.2, 1.0);
for (uint32_t i = 0; i < _impulse_fft->bins()-1; i++) {
// x coordinate of bin i
avgY = 0;
avgNum = 0;
} else if (rint(x) > prevX || i == _impulse_fft->bins()-1 ) {
- cairo_line_to(cr, prevX, avgY/(float)avgNum);
+ avgY = avgY/(float)avgNum;
+ if (avgY > (height * 10.0) ) avgY = height * 10.0;
+ if (avgY < (-height * 10.0) ) avgY = -height * 10.0;
+ cairo_line_to(cr, prevX, avgY);
+ //cairo_line_to(cr, prevX, avgY/(float)avgNum);
avgY = 0;
avgNum = 0;
cairo_font_extents_t extents;
cairo_font_extents(cr, &extents);
- float fontXOffset = extents.descent + 1.0;
+ // float fontXOffset = extents.descent + 1.0;
char buf[256];
cairo_set_source_rgb(cr, 0.4, 0.4, 0.4);
- cairo_move_to(cr, x + fontXOffset, 3.0);
+ //cairo_move_to(cr, x + fontXOffset, 3.0);
+ cairo_move_to(cr, x - extents.height, 3.0);
cairo_rotate(cr, M_PI / 2.0);
cairo_show_text(cr, buf);
}
void
-PluginEqGui::plot_amplitude(Gtk::Widget *w, cairo_t *cr)
+PluginEqGui::plot_impulse_amplitude(Gtk::Widget *w, cairo_t *cr)
{
float x,y;
float avgY = 0.0;
int avgNum = 0;
+ // float width = w->get_width();
+ float height = w->get_height();
+
cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
cairo_set_line_width (cr, 2.5);
avgY = 0;
avgNum = 0;
} else if (rint(x) > prevX || i == _impulse_fft->bins()-1 ) {
- cairo_line_to(cr, prevX, avgY/(float)avgNum);
+ avgY = avgY/(float)avgNum;
+ if (avgY > (height * 10.0) ) avgY = height * 10.0;
+ if (avgY < (-height * 10.0) ) avgY = -height * 10.0;
+ cairo_line_to(cr, prevX, avgY);
+ //cairo_line_to(cr, prevX, avgY/(float)avgNum);
avgY = 0;
avgNum = 0;
cairo_stroke(cr);
}
+void
+PluginEqGui::plot_signal_amplitude_difference(Gtk::Widget *w, cairo_t *cr)
+{
+ float x,y;
+
+ int prevX = 0;
+ float avgY = 0.0;
+ int avgNum = 0;
+
+ // float width = w->get_width();
+ float height = w->get_height();
+
+ cairo_set_source_rgb(cr, 0.0, 1.0, 0.0);
+ cairo_set_line_width (cr, 2.5);
+
+ for (uint32_t i = 0; i < _signal_input_fft->bins()-1; i++) {
+ // x coordinate of bin i
+ x = log10f(1.0 + (float)i / (float)_signal_input_fft->bins() * _log_coeff) / _log_max;
+ x *= _analysis_width;
+
+ float power_out = power_to_dB(_signal_output_fft->power_at_bin(i));
+ float power_in = power_to_dB(_signal_input_fft ->power_at_bin(i));
+ float power = power_out - power_in;
+
+ // for SaBer
+ /*
+ double p = 10.0 * log10( 1.0 + (double)_signal_output_fft->power_at_bin(i) - (double)
+ - _signal_input_fft ->power_at_bin(i));
+ //p *= 1000000.0;
+ float power = (float)p;
+
+ if ( (i % 1000) == 0) {
+ std::cerr << i << ": " << power << std::endl;
+ }
+ */
+
+ if (std::isinf(power)) {
+ if (power < 0) {
+ power = _min_dB - 1.0;
+ } else {
+ power = _max_dB - 1.0;
+ }
+ } else if (std::isnan(power)) {
+ power = _min_dB - 1.0;
+ }
+
+ float yCoeff = ( power - _min_dB) / (_max_dB - _min_dB);
+
+ y = _analysis_height - _analysis_height*yCoeff;
+
+ if ( i == 0 ) {
+ cairo_move_to(cr, x, y);
+
+ avgY = 0;
+ avgNum = 0;
+ } else if (rint(x) > prevX || i == _impulse_fft->bins()-1 ) {
+ avgY = avgY/(float)avgNum;
+ if (avgY > (height * 10.0) ) avgY = height * 10.0;
+ if (avgY < (-height * 10.0) ) avgY = -height * 10.0;
+ cairo_line_to(cr, prevX, avgY);
+
+ avgY = 0;
+ avgNum = 0;
+
+ }
+
+ prevX = rint(x);
+ avgY += y;
+ avgNum++;
+ }
+
+ cairo_stroke(cr);
+
+
+}
projects / ardour.git / blobdiff