1
0
mirror of https://github.com/qTox/qTox.git synced 2024-03-22 14:00:36 +08:00
qTox/widget/netcamview.cpp

61 lines
1.9 KiB
C++
Raw Normal View History

2014-07-07 00:19:45 +08:00
/*
Copyright (C) 2014 by Project Tox <https://tox.im>
This file is part of qTox, a Qt-based graphical interface for Tox.
This program is libre software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the COPYING file for more details.
*/
#include "netcamview.h"
NetCamView::NetCamView(QWidget* parent)
: QWidget(parent), displayLabel{new QLabel},
mainLayout{new QHBoxLayout()}
{
setLayout(mainLayout);
setWindowTitle("Tox video");
setMinimumSize(320,240);
displayLabel->setScaledContents(true);
mainLayout->addWidget(displayLabel);
}
void NetCamView::updateDisplay(vpx_image frame)
{
2014-06-30 20:49:42 +08:00
int w = frame.d_w, h = frame.d_h;
int bpl = frame.stride[VPX_PLANE_Y], cxbpl = frame.stride[VPX_PLANE_V];
QImage img(w, h, QImage::Format_RGB32);
uint8_t* yData = frame.planes[VPX_PLANE_Y];
2014-07-02 02:56:27 +08:00
uint8_t* uData = frame.planes[VPX_PLANE_U];
uint8_t* vData = frame.planes[VPX_PLANE_V];
for (int i = 0; i< h; i++)
{
uint32_t* scanline = (uint32_t*)img.scanLine(i);
2014-06-30 20:49:42 +08:00
for (int j=0; j < w; j++)
{
float Y = yData[i*bpl + j];
2014-07-02 02:56:27 +08:00
float U = uData[i/2*cxbpl + j/2];
float V = vData[i/2*cxbpl + j/2];
uint8_t R = qMax(qMin((int)(Y + 1.402 * (V - 128)),255),0);
uint8_t G = qMax(qMin((int)(Y - 0.344 * (U - 128) - 0.714 * (V - 128)),255),0);
uint8_t B = qMax(qMin((int)(Y + 1.772 * (U - 128)),255),0);
scanline[j] = (0xFF<<24) + (R<<16) + (G<<8) + B;
}
}
2014-06-30 20:49:42 +08:00
lastFrame = img;
displayLabel->setPixmap(QPixmap::fromImage(img));
}