mirror of
https://github.com/qTox/qTox.git
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82 lines
2.4 KiB
C++
82 lines
2.4 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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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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QFuture<QImage> future = QtConcurrent::run(convert,*frame);
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qApp->processEvents();
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QImage img = future.result();
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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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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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return img;
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}
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