/// <summary>
/// Creates an opus decoder and reads from the ogg stream until a data packet is encountered,
/// queuing it up for future decoding. Tags are also parsed if they are encountered.
/// </summary>
/// <returns>True if the stream is valid and ready to be decoded</returns>
private bool Initialize()
{
try
{
var oggContainerReader = new OggContainerReader(_stream, true);
if (!oggContainerReader.Init())
{
LastError = "Could not initialize stream";
return(false);
}
if (oggContainerReader.StreamSerials.Length == 0)
{
LastError = "Initialization failed: No elementary streams found in input file";
return(false);
}
int firstStreamSerial = oggContainerReader.StreamSerials[0];
_packetProvider = oggContainerReader.GetStream(firstStreamSerial);
if (CanSeek)
{
GranuleCount = _packetProvider.GetGranuleCount();
PageCount = _packetProvider.GetTotalPageCount();
}
QueueNextPacket();
return(true);
}
catch (Exception e)
{
LastError = "Unknown initialization error: " + e.Message;
return(false);
}
}
internal long GetLastGranulePos()
{
return(_packetProvider.GetGranuleCount());
}