public void create(Bitstream stream0, Header header0,
SynthesisFilter filtera, SynthesisFilter filterb,
Obuffer buffer0, OutputChannels which_ch0)
{
stream = stream0;
header = header0;
filter1 = filtera;
filter2 = filterb;
buffer = buffer0;
which_channels = which_ch0;
}
public override int Read(byte[] buffer, int offset, int count)
{
decodedStream.Position = decodedStream.Length;
Header header = bitStream.readFrame();
if (header == null)
{
return(0);
}
decoder.OutputBuffer = outputBuffer;
Obuffer decoderOutput = decoder.decodeFrame(header, bitStream);
bitStream.closeFrame();
decodedStream.Position = readPos;
int bytesRead = decodedStream.Read(buffer, offset, count);
readPos += bytesRead;
return(bytesRead);
}
public virtual void decodedFrame(int frameNo, Header header, Obuffer o)
{
if (isDetail(MAX_DETAIL))
{
//UPGRADE_TODO: The equivalent in .NET for method 'java.Object.toString' may return a different value. 'ms-help://MS.VSCC.2003/commoner/redir/redirect.htm?keyword="jlca1043"'
System.String headerString = header.ToString();
pw.WriteLine("Decoded frame " + frameNo + ": " + headerString);
pw.WriteLine("Output: " + o);
}
else if (isDetail(VERBOSE_DETAIL))
{
if (frameNo == 0)
{
pw.Write("Converting.");
pw.Flush();
}
if ((frameNo % 10) == 0)
{
pw.Write('.');
pw.Flush();
}
}
}
//UPGRADE_NOTE: Synchronized keyword was removed from method 'convert'. Lock expression was added. 'ms-help://MS.VSCC.2003/commoner/redir/redirect.htm?keyword="jlca1027"'
public virtual void convert(System.IO.Stream sourceStream, System.String destName, ProgressListener progressListener, Decoder.Params decoderParams)
{
lock (this)
{
if (progressListener == null)
{
progressListener = PrintWriterProgressListener.newStdOut(PrintWriterProgressListener.NO_DETAIL);
}
try
{
if (!(sourceStream is System.IO.BufferedStream))
{
sourceStream = new System.IO.BufferedStream(sourceStream);
}
int frameCount = -1;
//UPGRADE_ISSUE: Method 'java.io.InputStream.markSupported' was not converted. 'ms-help://MS.VSCC.2003/commoner/redir/redirect.htm?keyword="jlca1000_javaioInputStreammarkSupported"'
if (sourceStream.markSupported())
{
//UPGRADE_ISSUE: Method 'java.io.InputStream.mark' was not converted. 'ms-help://MS.VSCC.2003/commoner/redir/redirect.htm?keyword="jlca1000_javaioInputStreammark_int"'
sourceStream.mark(-1);
frameCount = countFrames(sourceStream);
//UPGRADE_ISSUE: Method 'java.io.InputStream.reset' was not converted. 'ms-help://MS.VSCC.2003/commoner/redir/redirect.htm?keyword="jlca1000_javaioInputStreamreset"'
sourceStream.reset();
}
progressListener.converterUpdate(javazoom.jl.converter.Converter.ProgressListener_Fields.UPDATE_FRAME_COUNT, frameCount, 0);
Obuffer output = null;
Decoder decoder = new Decoder(decoderParams);
Bitstream stream = new Bitstream(sourceStream);
if (frameCount == -1)
{
frameCount = System.Int32.MaxValue;
}
int frame = 0;
long startTime = (System.DateTime.Now.Ticks - 621355968000000000) / 10000;
try
{
for (; frame < frameCount; frame++)
{
try
{
Header header = stream.readFrame();
if (header == null)
{
break;
}
progressListener.readFrame(frame, header);
if (output == null)
{
// REVIEW: Incorrect functionality.
// the decoder should provide decoded
// frequency and channels output as it may differ from
// the source (e.g. when downmixing stereo to mono.)
int channels = (header.mode() == Header.SINGLE_CHANNEL)?1:2;
int freq = header.frequency();
output = new WaveFileObuffer(channels, freq, destName);
decoder.OutputBuffer = output;
}
Obuffer decoderOutput = decoder.decodeFrame(header, stream);
// REVIEW: the way the output buffer is set
// on the decoder is a bit dodgy. Even though
// this exception should never happen, we test to be sure.
if (decoderOutput != output)
{
throw new System.ApplicationException("Output buffers are different.");
}
progressListener.decodedFrame(frame, header, output);
stream.closeFrame();
}
catch (System.Exception ex)
{
bool stop = !progressListener.converterException(ex);
if (stop)
{
throw new JavaLayerException(ex.Message, ex);
}
}
}
}
finally
{
if (output != null)
{
output.close();
}
}
int time = (int)((System.DateTime.Now.Ticks - 621355968000000000) / 10000 - startTime);
progressListener.converterUpdate(javazoom.jl.converter.Converter.ProgressListener_Fields.UPDATE_CONVERT_COMPLETE, time, frame);
}
catch (System.IO.IOException ex)
{
throw new JavaLayerException(ex.Message, ex);
}
}
}