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45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
#include "netcamview.h"
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NetCamView::NetCamView(QWidget* parent)
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: QWidget(parent), displayLabel{new QLabel},
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mainLayout{new QHBoxLayout()}
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{
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setLayout(mainLayout);
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setWindowTitle("Tox video");
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setMinimumSize(320,240);
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displayLabel->setScaledContents(true);
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mainLayout->addWidget(displayLabel);
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}
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void NetCamView::updateDisplay(vpx_image frame)
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{
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int w = frame.d_w, h = frame.d_h;
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int bpl = frame.stride[VPX_PLANE_Y], cxbpl = frame.stride[VPX_PLANE_V];
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QImage img(w, h, QImage::Format_RGB32);
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uint8_t* yData = frame.planes[VPX_PLANE_Y];
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uint8_t* uData = frame.planes[VPX_PLANE_U];
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uint8_t* vData = frame.planes[VPX_PLANE_V];
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for (int i = 0; i< h; i++)
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{
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uint32_t* scanline = (uint32_t*)img.scanLine(i);
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for (int j=0; j < w; j++)
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{
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float Y = yData[i*bpl + j];
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float U = uData[i/2*cxbpl + j/2];
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float V = vData[i/2*cxbpl + j/2];
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uint8_t R = qMax(qMin((int)(Y + 1.402 * (V - 128)),255),0);
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uint8_t G = qMax(qMin((int)(Y - 0.344 * (U - 128) - 0.714 * (V - 128)),255),0);
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uint8_t B = qMax(qMin((int)(Y + 1.772 * (U - 128)),255),0);
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scanline[j] = (0xFF<<24) + (R<<16) + (G<<8) + B;
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}
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}
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lastFrame = img;
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displayLabel->setPixmap(QPixmap::fromImage(img));
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}
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