/// <summary>
/// Возвращает продолжительность трека в секундах
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public static ulong GetSoundLength(string fileName)
{
try {
var reader = new WaveFileReader(fileName);
var contents = new WaveFile();
contents.maindata = reader.ReadMainFileHeader();
contents.maindata.FileName = fileName;
while (reader.GetPosition() < (long)contents.maindata.dwFileLength)
{
var chunkName = reader.GetChunkName();
if (chunkName == "fmt ")
{
contents.format = reader.ReadFormatHeader();
if (reader.GetPosition() + contents.format.dwChunkSize == contents.maindata.dwFileLength)
{
break;
}
}
else if (chunkName == "fact")
{
contents.fact = reader.ReadFactHeader();
if (reader.GetPosition() + contents.fact.dwChunkSize == contents.maindata.dwFileLength)
{
break;
}
}
else if (chunkName.Equals("data"))
{
contents.data = reader.ReadDataHeader();
return(Convert.ToUInt64(contents.data.dSecLength));
}
else
{
reader.AdvanceToNext();
}
}
if (contents.maindata != null && contents.format != null)
{
return(contents.maindata.dwFileLength / contents.format.dwAvgBytesPerSec);
}
}
catch (Exception) {
}
return(0);
}