prep code from waterfall/spectrum setData
This commit is contained in:
Charles J. Cliffe
parent
10bc0c8ec5
commit
52e6de5f9d
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@ -10051,8 +10051,8 @@ void RtApi :: convertBuffer( char *outBuffer, char *inBuffer, ConvertInfo &info
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void RtApi :: byteSwapBuffer( char *buffer, unsigned int samples, RtAudioFormat format )
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{
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register char val;
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register char *ptr;
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char val;
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char *ptr;
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ptr = buffer;
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if ( format == RTAUDIO_SINT16 ) {
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@ -5,6 +5,81 @@
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class SpectrumVisualProcessor : public VisualProcessor {
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protected:
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virtual void process() {
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/*
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std::vector<liquid_float_complex> *data = &input->data;
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if (data && data->size()) {
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if (fft_size != data->size()) {
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setup(data->size());
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}
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if (spectrum_points.size() < fft_size * 2) {
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if (spectrum_points.capacity() < fft_size * 2) {
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spectrum_points.reserve(fft_size * 2);
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}
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spectrum_points.resize(fft_size * 2);
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}
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for (int i = 0; i < fft_size; i++) {
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in[i][0] = (*data)[i].real;
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in[i][1] = (*data)[i].imag;
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}
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fftwf_execute(plan);
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float fft_ceil = 0, fft_floor = 1;
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if (fft_result.size() != fft_size) {
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if (fft_result.capacity() < fft_size) {
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fft_result.reserve(fft_size);
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fft_result_ma.reserve(fft_size);
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fft_result_maa.reserve(fft_size);
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}
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fft_result.resize(fft_size);
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fft_result_ma.resize(fft_size);
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fft_result_maa.resize(fft_size);
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}
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int n;
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for (int i = 0, iMax = fft_size / 2; i < iMax; i++) {
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float a = out[i][0];
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float b = out[i][1];
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float c = sqrt(a * a + b * b);
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float x = out[fft_size / 2 + i][0];
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float y = out[fft_size / 2 + i][1];
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float z = sqrt(x * x + y * y);
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fft_result[i] = (z);
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fft_result[fft_size / 2 + i] = (c);
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}
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for (int i = 0, iMax = fft_size; i < iMax; i++) {
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fft_result_maa[i] += (fft_result_ma[i] - fft_result_maa[i]) * 0.65;
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fft_result_ma[i] += (fft_result[i] - fft_result_ma[i]) * 0.65;
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if (fft_result_maa[i] > fft_ceil) {
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fft_ceil = fft_result_maa[i];
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}
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if (fft_result_maa[i] < fft_floor) {
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fft_floor = fft_result_maa[i];
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}
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}
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fft_ceil += 1;
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fft_floor -= 1;
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fft_ceil_ma = fft_ceil_ma + (fft_ceil - fft_ceil_ma) * 0.01;
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fft_ceil_maa = fft_ceil_maa + (fft_ceil_ma - fft_ceil_maa) * 0.01;
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fft_floor_ma = fft_floor_ma + (fft_floor - fft_floor_ma) * 0.01;
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fft_floor_maa = fft_floor_maa + (fft_floor_ma - fft_floor_maa) * 0.01;
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for (int i = 0, iMax = fft_size; i < iMax; i++) {
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float v = (log10(fft_result_maa[i] - fft_floor_maa) / log10(fft_ceil_maa - fft_floor_maa));
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spectrum_points[i * 2] = ((float) i / (float) iMax);
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spectrum_points[i * 2 + 1] = v;
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}
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}
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*/
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}
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};
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@ -6,6 +6,276 @@
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class WaterfallVisualProcessor : public VisualProcessor {
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protected:
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virtual void process() {
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/*
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long double currentZoom = zoom;
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if (mouseZoom != 1) {
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currentZoom = mouseZoom;
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mouseZoom = mouseZoom + (1.0 - mouseZoom) * 0.2;
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if (fabs(mouseZoom-1.0)<0.01) {
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mouseZoom = 1;
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}
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}
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long long bw;
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if (currentZoom != 1) {
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long long freq = wxGetApp().getFrequency();
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if (currentZoom < 1) {
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centerFreq = getCenterFrequency();
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bw = getBandwidth();
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bw = (long long) ceil((long double) bw * currentZoom);
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if (bw < 100000) {
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bw = 100000;
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}
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if (mouseTracker.mouseInView()) {
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long long mfreqA = getFrequencyAt(mouseTracker.getMouseX());
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setBandwidth(bw);
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long long mfreqB = getFrequencyAt(mouseTracker.getMouseX());
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centerFreq += mfreqA - mfreqB;
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}
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setView(centerFreq, bw);
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if (spectrumCanvas) {
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spectrumCanvas->setView(centerFreq, bw);
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}
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} else {
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if (isView) {
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bw = getBandwidth();
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bw = (long long) ceil((long double) bw * currentZoom);
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if (bw >= wxGetApp().getSampleRate()) {
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disableView();
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if (spectrumCanvas) {
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spectrumCanvas->disableView();
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}
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} else {
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if (mouseTracker.mouseInView()) {
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long long mfreqA = getFrequencyAt(mouseTracker.getMouseX());
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setBandwidth(bw);
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long long mfreqB = getFrequencyAt(mouseTracker.getMouseX());
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centerFreq += mfreqA - mfreqB;
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}
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setView(getCenterFrequency(), bw);
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if (spectrumCanvas) {
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spectrumCanvas->setView(centerFreq, bw);
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}
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}
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}
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}
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if (centerFreq < freq && (centerFreq - bandwidth / 2) < (freq - wxGetApp().getSampleRate() / 2)) {
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centerFreq = (freq - wxGetApp().getSampleRate() / 2) + bandwidth / 2;
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}
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if (centerFreq > freq && (centerFreq + bandwidth / 2) > (freq + wxGetApp().getSampleRate() / 2)) {
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centerFreq = (freq + wxGetApp().getSampleRate() / 2) - bandwidth / 2;
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}
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}
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std::vector<liquid_float_complex> *data = &input->data;
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if (data && data->size()) {
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// if (fft_size != data->size() && !isView) {
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// Setup(data->size(), waterfall_lines);
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// }
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// if (last_bandwidth != bandwidth && !isView) {
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// Setup(bandwidth, waterfall_lines);
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// }
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if (spectrum_points.size() < fft_size * 2) {
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spectrum_points.resize(fft_size * 2);
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}
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unsigned int num_written;
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if (isView) {
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if (!input->frequency || !input->sampleRate) {
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return;
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}
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resamplerRatio = (double) (bandwidth) / (double) input->sampleRate;
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int desired_input_size = fft_size / resamplerRatio;
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if (input->data.size() < desired_input_size) {
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// std::cout << "fft underflow, desired: " << desired_input_size << " actual:" << input->data.size() << std::endl;
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desired_input_size = input->data.size();
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}
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if (centerFreq != input->frequency) {
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if ((centerFreq - input->frequency) != shiftFrequency || lastInputBandwidth != input->sampleRate) {
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if (abs(input->frequency - centerFreq) < (wxGetApp().getSampleRate() / 2)) {
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shiftFrequency = centerFreq - input->frequency;
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nco_crcf_reset(freqShifter);
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nco_crcf_set_frequency(freqShifter, (2.0 * M_PI) * (((double) abs(shiftFrequency)) / ((double) input->sampleRate)));
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}
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}
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if (shiftBuffer.size() != desired_input_size) {
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if (shiftBuffer.capacity() < desired_input_size) {
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shiftBuffer.reserve(desired_input_size);
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}
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shiftBuffer.resize(desired_input_size);
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}
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if (shiftFrequency < 0) {
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nco_crcf_mix_block_up(freqShifter, &input->data[0], &shiftBuffer[0], desired_input_size);
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} else {
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nco_crcf_mix_block_down(freqShifter, &input->data[0], &shiftBuffer[0], desired_input_size);
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}
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} else {
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shiftBuffer.assign(input->data.begin(), input->data.end());
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}
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if (!resampler || bandwidth != lastBandwidth || lastInputBandwidth != input->sampleRate) {
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float As = 60.0f;
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if (resampler) {
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msresamp_crcf_destroy(resampler);
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}
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resampler = msresamp_crcf_create(resamplerRatio, As);
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lastBandwidth = bandwidth;
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lastInputBandwidth = input->sampleRate;
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}
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int out_size = ceil((double) (desired_input_size) * resamplerRatio) + 512;
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if (resampleBuffer.size() != out_size) {
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if (resampleBuffer.capacity() < out_size) {
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resampleBuffer.reserve(out_size);
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}
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resampleBuffer.resize(out_size);
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}
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msresamp_crcf_execute(resampler, &shiftBuffer[0], desired_input_size, &resampleBuffer[0], &num_written);
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resampleBuffer.resize(fft_size);
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if (num_written < fft_size) {
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for (int i = 0; i < num_written; i++) {
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fft_in_data[i][0] = resampleBuffer[i].real;
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fft_in_data[i][1] = resampleBuffer[i].imag;
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}
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for (int i = num_written; i < fft_size; i++) {
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fft_in_data[i][0] = 0;
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fft_in_data[i][1] = 0;
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}
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} else {
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for (int i = 0; i < fft_size; i++) {
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fft_in_data[i][0] = resampleBuffer[i].real;
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fft_in_data[i][1] = resampleBuffer[i].imag;
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}
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}
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} else {
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num_written = data->size();
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if (data->size() < fft_size) {
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for (int i = 0, iMax = data->size(); i < iMax; i++) {
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fft_in_data[i][0] = (*data)[i].real;
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fft_in_data[i][1] = (*data)[i].imag;
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}
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for (int i = data->size(); i < fft_size; i++) {
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fft_in_data[i][0] = 0;
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fft_in_data[i][1] = 0;
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}
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} else {
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for (int i = 0; i < fft_size; i++) {
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fft_in_data[i][0] = (*data)[i].real;
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fft_in_data[i][1] = (*data)[i].imag;
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}
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}
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}
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bool execute = false;
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if (num_written >= fft_size) {
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execute = true;
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memcpy(in, fft_in_data, fft_size * sizeof(fftwf_complex));
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memcpy(fft_last_data, in, fft_size * sizeof(fftwf_complex));
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} else {
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if (last_data_size + num_written < fft_size) { // priming
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unsigned int num_copy = fft_size - last_data_size;
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if (num_written > num_copy) {
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num_copy = num_written;
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}
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memcpy(fft_last_data, fft_in_data, num_copy * sizeof(fftwf_complex));
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last_data_size += num_copy;
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} else {
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unsigned int num_last = (fft_size - num_written);
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memcpy(in, fft_last_data + (last_data_size - num_last), num_last * sizeof(fftwf_complex));
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memcpy(in + num_last, fft_in_data, num_written * sizeof(fftwf_complex));
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memcpy(fft_last_data, in, fft_size * sizeof(fftwf_complex));
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execute = true;
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}
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}
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if (execute) {
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fftwf_execute(plan);
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float fft_ceil = 0, fft_floor = 1;
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if (fft_result.size() < fft_size) {
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fft_result.resize(fft_size);
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fft_result_ma.resize(fft_size);
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fft_result_maa.resize(fft_size);
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}
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int n;
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for (int i = 0, iMax = fft_size / 2; i < iMax; i++) {
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float a = out[i][0];
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float b = out[i][1];
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float c = sqrt(a * a + b * b);
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float x = out[fft_size / 2 + i][0];
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float y = out[fft_size / 2 + i][1];
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float z = sqrt(x * x + y * y);
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fft_result[i] = (z);
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fft_result[fft_size / 2 + i] = (c);
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}
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for (int i = 0, iMax = fft_size; i < iMax; i++) {
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if (isView) {
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fft_result_maa[i] += (fft_result_ma[i] - fft_result_maa[i]) * 0.65;
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fft_result_ma[i] += (fft_result[i] - fft_result_ma[i]) * 0.65;
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} else {
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fft_result_maa[i] += (fft_result_ma[i] - fft_result_maa[i]) * 0.65;
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fft_result_ma[i] += (fft_result[i] - fft_result_ma[i]) * 0.65;
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}
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if (fft_result_maa[i] > fft_ceil) {
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fft_ceil = fft_result_maa[i];
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}
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if (fft_result_maa[i] < fft_floor) {
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fft_floor = fft_result_maa[i];
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}
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}
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fft_ceil += 0.25;
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fft_floor -= 1;
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fft_ceil_ma = fft_ceil_ma + (fft_ceil - fft_ceil_ma) * 0.05;
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fft_ceil_maa = fft_ceil_maa + (fft_ceil_ma - fft_ceil_maa) * 0.05;
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fft_floor_ma = fft_floor_ma + (fft_floor - fft_floor_ma) * 0.05;
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fft_floor_maa = fft_floor_maa + (fft_floor_ma - fft_floor_maa) * 0.05;
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for (int i = 0, iMax = fft_size; i < iMax; i++) {
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float v = (log10(fft_result_maa[i] - fft_floor_maa) / log10(fft_ceil_maa - fft_floor_maa));
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spectrum_points[i * 2] = ((float) i / (float) iMax);
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spectrum_points[i * 2 + 1] = v;
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}
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if (spectrumCanvas) {
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spectrumCanvas->spectrum_points.assign(spectrum_points.begin(), spectrum_points.end());
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spectrumCanvas->getSpectrumContext()->setCeilValue(fft_ceil_maa);
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spectrumCanvas->getSpectrumContext()->setFloorValue(fft_floor_maa);
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}
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}
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}
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*/
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}
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};
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