recv_loss.cpp

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#include <QtGlobal>
#if defined(Q_OS_WIN) || defined(Q_OS_MACOS)
#include <QStyleFactory>
#endif
#include "recv_loss.hpp"
#include "utils/string_view_utils.hpp"
 
RecvLossWidget::RecvLossWidget(QWidget *parent) : QProgressBar(parent){
        elapsedTimer.start();
        reset();
        QObject::connect(&timer, &QTimer::timeout, this, &RecvLossWidget::timeout);
        timer.setInterval(timeout_msec);
#if defined(Q_OS_WIN) || defined(Q_OS_MACOS)
        setStyle(QStyleFactory::create("Fusion")); //mac style progressbars have no text
#endif
}
 
void RecvLossWidget::reset(){
        timer.stop();
        setRange(0, 100);
        setValue(0);
        setFormat("Nothing received");
        setTextVisible(true);
        setToolTip("Nothing received");
 
        reports.clear();
}
 
void RecvLossWidget::parseLine(std::string_view line){
        if(!sv_is_prefix(line, "SSRC "))
                return;
 
        auto tmp = line;
        tokenize(tmp, ' '); //"SSRC"
        auto ssrc_sv = tokenize(tmp, ' '); //actual ssrc
        if(ssrc_sv.substr(0, 2) == "0x")
                ssrc_sv.remove_prefix(2);
        auto packet_counts = tokenize(tmp, ' '); //received/total
 
        auto received_sv = tokenize(packet_counts, '/');
        auto total_sv = tokenize(packet_counts, '/');
 
        int ssrc;
        int received;
        int total;
 
        if(!parse_num(received_sv, received)
                        || !parse_num(total_sv, total)
                        || !parse_num(ssrc_sv, ssrc, 16))
                return;
 
        addReport(ssrc, received, total);
        updateVal();
}
 
void RecvLossWidget::addReport(int ssrc, int received, int total){
        SSRC_report rep;
        rep.received = received;
        rep.total = total;
        reports.insert(ssrc, rep, elapsedTimer.elapsed());
}
 
void RecvLossWidget::updateVal(){
        int received = 0;
        int total = 0;
 
        reports.remove_timed_out(timeout_msec, elapsedTimer.elapsed());
 
        QString tooltip;
        for(auto& r : reports.get()){
                received += r.item.received;
                total += r.item.total;
                tooltip += QString::number(r.ssrc, 16) + ": "
                        + QString::number(r.item.received) + '/' + QString::number(r.item.total) + '\n';
        }
 
        if(tooltip.endsWith('\n'))
                tooltip.chop(1);
 
        if(total < 1)
                total = 1;
 
        float ratio = ((float) received / total) * 100.f;
        setFormat("Received %p% of packets");
        setValue(ratio);
        setToolTip(tooltip);
        timer.start();
}
 
void RecvLossWidget::timeout(){
        setValue(0);
        setFormat("Nothing received");
        setToolTip("Nothing received");
}