public static (uint applBitrate, uint settingsBitrate) ApplicableBitRate(this IBitRateSettings settings, uint sourceBitrate)
{
uint settingsBitrate = settings.ReducedBitRate.UInt32();
if ((settingsBitrate == 0 || settingsBitrate >= sourceBitrate) && !settings.VariableBitRate)
{
return(0, 0);
}
uint applicableBitrate = sourceBitrate;
if (settingsBitrate != 0)
{
applicableBitrate = Math.Min(sourceBitrate, settingsBitrate);
}
return(applicableBitrate, settingsBitrate);
}
public void SetBitRate(IBitRateSettings settings, IAudioQuality audioQuality, bool anyway)
{
uint sampleRate = audioQuality.SampleRate;
uint sourceBitrate = audioQuality.AvgBitRate;
bool reducing = false;
var(applicableBitrate, settingsBitrate) = settings.ApplicableBitRate(sourceBitrate);
if (applicableBitrate == 0)
{
if (!anyway)
{
return;
}
else
{
applicableBitrate = sourceBitrate;
}
}
else
{
reducing = true;
_bitrateParam = getSampeRate(sampleRate, applicableBitrate);
}
if (settings.VariableBitRate)
{
_bitrateParam += getVariableBitrate(applicableBitrate, settings.ConvFormat == EConvFormat.mp3);
}
else
{
if (reducing)
{
Log(3, this, () => $"{ID}reduce: {sourceBitrate} -> {settingsBitrate} kb/s");
}
_bitrateParam += $"-b:a {applicableBitrate}k";
}
}
