/// <summary>
/// Reads the MP3 stream as PCM-encoded bytes. Decodes a portion of the stream if necessary.
/// Returns the number of bytes read.
/// </summary>
public override int Read(byte[] buffer, int offset, int count)
{
// Copy from queue buffers, reading new ones as necessary,
// until we can't read more or we have read "count" bytes
int bytesRead = 0;
while (true)
{
if (QueueOBuffer.bytesLeft <= 0)
{
if (!ReadFrame()) // out of frames or end of stream?
{
break;
}
}
// Copy as much as we can from the current buffer:
bytesRead += QueueOBuffer.Read(buffer,
offset + bytesRead,
count - bytesRead);
if (bytesRead >= count)
{
break;
}
}
return(bytesRead);
}
/// <summary>
/// Reads the MP3 stream as PCM-encoded bytes. Decodes a portion of the stream if necessary.
/// </summary>
public override int Read(byte[] buffer, int offset, int count)
{
bool aFrameWasRead = true;
while (QueueOBuffer.QueuedByteCount < count && aFrameWasRead)
{
aFrameWasRead = ReadFrame();
}
int bytesToReturn = Math.Min(QueueOBuffer.QueuedByteCount, count);
int bytesRead = 0;
switch (Format)
{
case SoundFormat.Pcm16BitMono:
bytesRead = QueueOBuffer.DequeueAs16BitPcmMono(buffer, offset, bytesToReturn);
break;
case SoundFormat.Pcm16BitStereo:
bytesRead = QueueOBuffer.DequeueAs16BitPcmStereo(buffer, offset, bytesToReturn);
break;
default:
throw new ApplicationException("Unknown sound format in Mp3Stream Read call: " + Format);
}
return(bytesRead);
}
/// <summary>
/// Creates a new stream instance using the provided stream as a source.
/// </summary>
public Mp3Stream(Stream sourceStream, int chunkSize)
{
SourceStream = sourceStream;
JZBitStream = new javazoom.jl.decoder.Bitstream(new javazoom.jl.decoder.BackStream(SourceStream, chunkSize));
QueueOBuffer = new QueueOBuffer();
JZDecoder.OutputBuffer = QueueOBuffer;
}
/// <summary>
/// Reads the MP3 stream as PCM-encoded bytes. Decodes a portion of the stream if necessary.
/// Returns the number of bytes read.
/// </summary>
public override int Read(byte[] buffer, int offset, int count)
{
////System.Diagnostics.Trace.WriteLine("Mp3Stream - Read");
// Copy from queue buffers, reading new ones as necessary,
// until we can't read more or we have read "count" bytes
int bytesRead = 0;
//int attempts = 0;
while (true)//&& attempts < 1000
{
////System.Diagnostics.Trace.WriteLine("Mp3Stream - While Start attempts=" + attempts.ToString());
if (QueueOBuffer.bytesLeft <= 0)
{
////System.Diagnostics.Trace.WriteLine("Mp3Stream - ReadFrame start");
if (!ReadFrame()) // out of frames or end of stream?
{
break;
}
////System.Diagnostics.Trace.WriteLine("Mp3Stream - ReadFrame end");
}
////System.Diagnostics.Trace.WriteLine("Mp3Stream - QueueOBuffer.Read");
// Copy as much as we can from the current buffer:
bytesRead += QueueOBuffer.Read(buffer,
offset + bytesRead,
count - bytesRead);
if (bytesRead >= count)
{
break;
}
////System.Diagnostics.Trace.WriteLine("Mp3Stream - QueueOBuffer.Read - end");
//attempts++;
}
//System.Diagnostics.Trace.WriteLine("Mp3Stream - Finished reading " + bytesRead.ToString() + " bytes");
return(bytesRead);
}
/// <summary>
/// Creates a new stream instance using the provided stream as a source.
/// </summary>
public Mp3Stream(Stream sourceStream, int chunkSize)
{
SourceStream = sourceStream;
JZBitStream = new javazoom.jl.decoder.Bitstream(new javazoom.jl.decoder.BackStream(SourceStream, chunkSize));
QueueOBuffer = new QueueOBuffer();
JZDecoder.OutputBuffer = QueueOBuffer;
}
