/// <summary>
/// Generates a set of qualities from a given DefaultQuality level.
/// </summary>
/// <param name="q"></param>
/// <param name="preset"></param>
/// <returns></returns>
public static IEnumerable <IQuality> GenerateDefaultQualities(DefaultQuality q, H264Preset preset)
{
switch (q)
{
case DefaultQuality.potato:
return(new List <Quality>()
{
new Quality(1280, 720, 1600, preset),
new Quality(854, 480, 800, preset),
new Quality(640, 360, 500, preset)
});
case DefaultQuality.low:
return(new List <Quality>()
{
new Quality(1280, 720, 2400, preset),
new Quality(1280, 720, 1600, preset),
new Quality(640, 360, 700, preset),
});
case DefaultQuality.high:
return(new List <Quality>()
{
new Quality(1920, 1080, 6000, preset),
new Quality(1920, 1080, 4000, preset),
new Quality(1280, 720, 2000, preset),
});
case DefaultQuality.ultra:
return(new List <Quality>()
{
new Quality(1920, 1080, 8000, preset),
new Quality(1920, 1080, 6000, preset),
new Quality(1280, 720, 2000, preset),
});
default:
break;
}
// Medium/default
return(new List <Quality>()
{
new Quality(1920, 1080, 3400, preset),
new Quality(1280, 720, 1800, preset),
new Quality(640, 360, 800, preset),
});
}
public Quality Create(string name)
{
Quality quality;
if (name == AgedBrie)
{
quality = new AgedBrieQuality();
}
else if (name == BackstagePass)
{
quality = new BackStagePassQuality();
}
else if (name == Sulfuras)
{
quality = new SulfurasQuality();
}
else
{
quality = new DefaultQuality();
}
return(quality);
}
private TwitchVideoQuality GetSelectedQuality(List <TwitchVideoQuality> qualities, DefaultQuality defaultQuality)
{
TwitchVideoQuality sourceQuality = qualities.Find(q => q.IsSource);
if (defaultQuality.IsSource)
{
return(sourceQuality);
}
if (defaultQuality.IsAudioOnly)
{
TwitchVideoQuality audioOnlyQuality = qualities.FirstOrDefault(q => q.IsAudioOnly);
if (audioOnlyQuality != null)
{
return(audioOnlyQuality);
}
else
{
return(sourceQuality);
}
}
IEnumerable <TwitchVideoQuality> visualQualities = qualities.Where(q => !q.IsAudioOnly);
int defaultRes = defaultQuality.VerticalResolution;
TwitchVideoQuality selectedQuality = null;
foreach (TwitchVideoQuality quality in visualQualities)
{
if (quality.VerticalResolution <= defaultRes && (selectedQuality == null || selectedQuality.VerticalResolution < quality.VerticalResolution))
{
selectedQuality = quality;
}
}
if (selectedQuality != null)
{
return(selectedQuality);
}
foreach (TwitchVideoQuality quality in visualQualities)
{
if (quality.VerticalResolution >= defaultRes && (selectedQuality == null || selectedQuality.VerticalResolution > quality.VerticalResolution))
{
selectedQuality = quality;
}
}
if (selectedQuality != null)
{
return(selectedQuality);
}
return(sourceQuality);
}