/// <summary>
/// Reads a frame from the MP3 stream. Returns whether the operation was successful. If it wasn't,
/// the source stream is probably at its end.
/// </summary>
private bool ReadFrame()
{
// Read a frame from the bitstream.
javazoom.jl.decoder.Header header = JZBitStream.readFrame();
if (header == null)
{
return(false);
}
// Set the channel count and frequency values for the stream.
ChannelCountRep = (header.mode() == javazoom.jl.decoder.Header.SINGLE_CHANNEL)?(short)1:(short)2;
FrequencyRep = header.frequency();
// Decode the frame.
javazoom.jl.decoder.Obuffer decoderOutput = JZDecoder.decodeFrame(header, JZBitStream);
// Apparently, the way JavaZoom sets the output buffer
// on the decoder is a bit dodgy. Even though
// this exception should never happen, we test to be sure.
if (decoderOutput != QueueOBuffer)
{
throw new System.ApplicationException("Output buffers are different.");
}
// And we're done.
JZBitStream.closeFrame();
return(true);
}
/// <summary>
/// Reads a frame from the MP3 stream. Returns whether the operation was successful. If it wasn't,
/// the source stream is probably at its end.
/// </summary>
private bool ReadFrame()
{
javazoom.jl.decoder.Header header;
try
{
////System.Diagnostics.Trace.WriteLine("ReadFrame -BitStream read frame");
// Read a frame from the bitstream.
header = JZBitStream.readFrame();
if (header == null)
{
return(false);
}
////System.Diagnostics.Trace.WriteLine("ReadFrame -BitStream read frame - done");
}
catch (Exception e)
{
return(false);
}
try
{
////System.Diagnostics.Trace.WriteLine("ReadFrame -BitStream sort out ChannelCountRep");
// Set the channel count and frequency values for the stream.
if (header.mode() == javazoom.jl.decoder.Header.SINGLE_CHANNEL)
{
ChannelCountRep = (short)1;
}
else
{
ChannelCountRep = (short)2;
}
////System.Diagnostics.Trace.WriteLine("ReadFrame - get frequency");
FrequencyRep = header.frequency();
////System.Diagnostics.Trace.WriteLine("ReadFrame - decode frame");
// Decode the frame.
javazoom.jl.decoder.Obuffer decoderOutput = JZDecoder.decodeFrame(header, JZBitStream);
// Apparently, the way JavaZoom sets the output buffer
// on the decoder is a bit dodgy. Even though
// this exception should never happen, we test to be sure.
////System.Diagnostics.Trace.WriteLine("ReadFrame - check to see if out buffers are different");
if (decoderOutput != QueueOBuffer)
{
throw new System.ApplicationException("Output buffers are different.");
}
// And we're done.
}
finally
{
////System.Diagnostics.Trace.WriteLine("ReadFrame - close the frame");
// No resource leaks please!
if (JZBitStream != null)
{
JZBitStream.closeFrame();
}
}
////System.Diagnostics.Trace.WriteLine("ReadFrame - end");
return(true);
}
