/// <summary>
/// Takes a specified amount of time from the source stream
/// </summary>
/// <param name="sampleProvider">Source sample provider</param>
/// <param name="take">Duration to take</param>
/// <returns>A sample provider that reads up to the specified amount of time</returns>
public static ISampleProvider TakeWithFade(this ISampleProvider sampleProvider, TimeSpan take, TimeSpan fadeIn, TimeSpan fadeOut, TimeSpan skip)
{
var offset = new OffsetSampleProvider(sampleProvider)
{
SkipOver = skip, Take = take
};
if (fadeIn == TimeSpan.Zero && fadeOut == TimeSpan.Zero)
{
return(offset);
}
var fade = new TimedFadeInOutSampleProvider(offset, fadeIn != TimeSpan.Zero);
if (fadeIn != TimeSpan.Zero)
{
fade.AddFadeIn(TimeSpan.Zero, fadeIn);
}
if (fadeOut != TimeSpan.Zero)
{
fade.AddFadeOut(take - fadeOut, fadeOut);
}
return(fade);
}
private static ISampleProvider GetProvider(ISampleProvider source, TimeSpan take, TimeSpan fadeIn, TimeSpan fadeOut, TimeSpan skip, float volume)
{
var offset = new OffsetSampleProvider(source)
{
SkipOver = skip, Take = take
};
var mono = offset.ToMono(volume, volume);
if (fadeIn == TimeSpan.Zero && fadeOut == TimeSpan.Zero)
{
return(mono);
}
var fade = new TimedFadeInOutSampleProvider(mono, fadeIn != TimeSpan.Zero);
if (fadeIn != TimeSpan.Zero)
{
fade.AddFadeIn(TimeSpan.Zero, fadeIn);
}
if (fadeOut != TimeSpan.Zero)
{
fade.AddFadeOut(take - fadeOut, fadeOut);
}
return(fade);
}