/// <summary>
/// Converts specified sample's buffer size to a sample's duration.
/// </summary>
/// <param name="bufferSize">Sample's buffer size.</param>
/// <returns>Sample's duration.</returns>
/// <exception cref="EndOfStreamException">This stream contains no data.</exception>
public double GetDurationFromBufferSize(uint bufferSize)
{
FlacMediaStreamInfo streamInfo = this.GetStreamInfo();
if (streamInfo.BytesPerSecond == 0)
{
return(0);
}
return((double)bufferSize / streamInfo.BytesPerSecond);
}
private void MetadataCallback(object sender, StreamDecoderMetadataEventArgs e)
{
if (e.Metadata.Type == MetadataType.StreamInfo && e.Metadata.StreamInfo != null)
{
uint blockAlign = e.Metadata.StreamInfo.Channels * (e.Metadata.StreamInfo.BitsPerSample / 8);
uint avgBytesPerSec = e.Metadata.StreamInfo.SampleRate * blockAlign;
double duration = (double)e.Metadata.StreamInfo.TotalSamples / e.Metadata.StreamInfo.SampleRate;
this._streamInfo = new FlacMediaStreamInfo(
duration, avgBytesPerSec,
e.Metadata.StreamInfo.BitsPerSample,
e.Metadata.StreamInfo.SampleRate,
e.Metadata.StreamInfo.Channels);
}
}
/// <summary>
/// Converts specified sample's duration to a sample's buffer size.
/// </summary>
/// <param name="duration">Sample's duration.</param>
/// <returns>Sample's buffer size.</returns>
/// <exception cref="System.IO.EndOfStreamException">This stream contains no data.</exception>
public uint GetBufferSizeFromDuration(double duration)
{
FlacMediaStreamInfo streamInfo = this.GetStreamInfo();
return((uint)(duration * streamInfo.BytesPerSecond));
}
private void MetadataCallback(object sender, StreamDecoderMetadataEventArgs e)
{
if (e.Metadata.Type == MetadataType.StreamInfo && e.Metadata.StreamInfo != null)
{
uint blockAlign = e.Metadata.StreamInfo.Channels*(e.Metadata.StreamInfo.BitsPerSample/8);
uint avgBytesPerSec = e.Metadata.StreamInfo.SampleRate*blockAlign;
double duration = (double) e.Metadata.StreamInfo.TotalSamples/e.Metadata.StreamInfo.SampleRate;
this._streamInfo = new FlacMediaStreamInfo(
duration, avgBytesPerSec,
e.Metadata.StreamInfo.BitsPerSample,
e.Metadata.StreamInfo.SampleRate,
e.Metadata.StreamInfo.Channels);
}
}
