moonlight-qt/app/settings/streamingpreferences.cpp

#include "streamingpreferences.h"

#include <QSettings>

#define SER_STREAMSETTINGS "streamsettings"
#define SER_WIDTH "width"
#define SER_HEIGHT "height"
#define SER_FPS "fps"
#define SER_BITRATE "bitrate"
#define SER_FULLSCREEN "fullscreen"
#define SER_GAMEOPTS "gameopts"
#define SER_HOSTAUDIO "hostaudio"
#define SER_MULTICONT "multicontroller"
#define SER_AUDIOCFG "audiocfg"
#define SER_VIDEOCFG "videocfg"

StreamingPreferences::StreamingPreferences()
{
    reload();
}

void StreamingPreferences::reload()
{
    QSettings settings;

    width = settings.value(SER_WIDTH, 1280).toInt();
    height = settings.value(SER_HEIGHT, 720).toInt();
    fps = settings.value(SER_FPS, 60).toInt();
    bitrateKbps = settings.value(SER_BITRATE, getDefaultBitrate(width, height, fps)).toInt();
    fullScreen = settings.value(SER_FULLSCREEN, true).toBool();
    enableGameOptimizations = settings.value(SER_GAMEOPTS, true).toBool();
    playAudioOnHost = settings.value(SER_HOSTAUDIO, false).toBool();
    multiController = settings.value(SER_MULTICONT, true).toBool();
    audioConfig = static_cast<AudioConfig>(settings.value(SER_AUDIOCFG,
                                                  static_cast<int>(AudioConfig::AC_AUTO)).toInt());
    videoCodecConfig = static_cast<VideoCodecConfig>(settings.value(SER_VIDEOCFG,
                                                  static_cast<int>(VideoCodecConfig::VCC_AUTO)).toInt());
}

void StreamingPreferences::save()
{
    QSettings settings;

    settings.setValue(SER_WIDTH, width);
    settings.setValue(SER_HEIGHT, height);
    settings.setValue(SER_FPS, fps);
    settings.setValue(SER_BITRATE, bitrateKbps);
    settings.setValue(SER_FULLSCREEN, fullScreen);
    settings.setValue(SER_GAMEOPTS, enableGameOptimizations);
    settings.setValue(SER_HOSTAUDIO, playAudioOnHost);
    settings.setValue(SER_MULTICONT, multiController);
    settings.setValue(SER_AUDIOCFG, static_cast<int>(audioConfig));
    settings.setValue(SER_VIDEOCFG, static_cast<int>(videoCodecConfig));
}

int StreamingPreferences::getDefaultBitrate(int width, int height, int fps)
{
    if (width * height * fps <=  1280 * 720 * 30) {
        return 5000;
    }
    else if (width * height * fps <= 1280 * 720 * 60) {
        return 10000;
    }
    else if (width * height * fps <= 1920 * 1080 * 30) {
        return 10000;
    }
    else if (width * height * fps <= 1920 * 1080 * 60) {
        return 20000;
    }
    else if (width * height * fps <= 3840 * 2160 * 30) {
        return 40000;
    }
    else /* if (width * height * fps <= 3840 * 2160 * 60) */ {
        return 80000;
    }
}