50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
#include "ScopeVisualProcessor.h"
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void ScopeVisualProcessor::process() {
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if (!isOutputEmpty()) {
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return;
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}
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if (!input->empty()) {
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AudioThreadInput *audioInputData;
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input->pop(audioInputData);
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if (!audioInputData) {
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return;
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}
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int iMax = audioInputData->data.size();
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if (!iMax) {
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audioInputData->decRefCount();
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return;
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}
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ScopeRenderData *renderData = outputBuffers.getBuffer();
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renderData->channels = audioInputData->channels;
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if (renderData->waveform_points.size() != iMax * 2) {
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renderData->waveform_points.resize(iMax * 2);
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}
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float peak = 1.0f;
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for (int i = 0; i < iMax; i++) {
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float p = fabs(audioInputData->data[i]);
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if (p > peak) {
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peak = p;
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}
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}
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if (audioInputData->channels == 2) {
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for (int i = 0; i < iMax; i++) {
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renderData->waveform_points[i * 2] = (((double) (i % (iMax/2)) / (double) iMax) * 2.0 - 0.5) * 2.0;
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renderData->waveform_points[i * 2 + 1] = audioInputData->data[i] / peak;
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}
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} else {
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for (int i = 0; i < iMax; i++) {
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renderData->waveform_points[i * 2] = (((double) i / (double) iMax) - 0.5) * 2.0;
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renderData->waveform_points[i * 2 + 1] = audioInputData->data[i] / peak;
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}
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}
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distribute(renderData);
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}
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}
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