mirror of
https://github.com/qTox/qTox.git
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112 lines
2.8 KiB
C++
112 lines
2.8 KiB
C++
/*
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Copyright (C) 2014 by Project Tox <https://tox.im>
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This file is part of qTox, a Qt-based graphical interface for Tox.
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This program is libre software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the COPYING file for more details.
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*/
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#include "netcamview.h"
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#include "core.h"
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#include "widget.h"
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#include <QApplication>
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#include <QtConcurrent/QtConcurrent>
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static inline void fromYCbCrToRGB(
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uint8_t Y, uint8_t Cb, uint8_t Cr,
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uint8_t& R, uint8_t& G, uint8_t& B)
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{
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int r = Y + ((1436 * (Cr - 128)) >> 10),
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g = Y - ((354 * (Cb - 128) + 732 * (Cr - 128)) >> 10),
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b = Y + ((1814 * (Cb - 128)) >> 10);
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if(r < 0) {
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r = 0;
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} else if(r > 255) {
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r = 255;
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}
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if(g < 0) {
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g = 0;
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} else if(g > 255) {
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g = 255;
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}
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if(b < 0) {
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b = 0;
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} else if(b > 255) {
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b = 255;
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}
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R = static_cast<uint8_t>(r);
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G = static_cast<uint8_t>(g);
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B = static_cast<uint8_t>(b);
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}
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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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if (!frame->w || !frame->h)
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return;
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Core* core = Widget::getInstance()->getCore();
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core->increaseVideoBusyness();
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QImage img = convert(*frame);
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vpx_img_free(frame);
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displayLabel->setPixmap(QPixmap::fromImage(img));
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core->decreaseVideoBusyness();
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}
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QImage NetCamView::convert(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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uint8_t Y = yData[i*bpl + j];
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uint8_t U = uData[i/2*cxbpl + j/2];
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uint8_t V = vData[i/2*cxbpl + j/2];
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uint8_t R, G, B;
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fromYCbCrToRGB(Y, U, V, R, G, B);
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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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return img;
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}
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