Initial community commit

Src/vlb/VlbDecoder.cpp

@@ -0,0 +1,79 @@
+#include "VLBDecoder.h"
+VLBDecoder::VLBDecoder()
+{
+	decoder = 0;
+}
+
+VLBDecoder::~VLBDecoder()
+{
+	delete decoder;
+}
+
+int VLBDecoder::Open(DataIOControl *paacInput)
+{
+	if (decoder)
+		return 1;
+
+	decoder = new CAacDecoderApi(paacInput);
+	return 0;
+}
+
+void VLBDecoder::Close()
+{
+	delete decoder;
+	decoder=0;
+}
+
+long VLBDecoder::Synchronize(AACStreamParameters *paacStreamParameters)
+{
+	if (decoder)
+	{
+		long status = decoder->Synchronize(paacStreamParameters);
+		if (status == 0)
+		{
+			info.ucNChannels = (unsigned char) paacStreamParameters->num_channels;
+			info.uiSampleRate = paacStreamParameters->sampling_frequency;
+
+			dataout.SetFormatInfo(&info);
+		}
+		return status;
+	}
+	else
+		return ERR_SYNC_ERROR;
+}
+
+long VLBDecoder::DecodeFrame(AACStreamParameters *paacStreamParameters)
+{
+	if (decoder)
+		return decoder->DecodeFrame(&dataout, paacStreamParameters);
+	else
+		return ERR_INVALID_BITSTREAM;
+}
+
+void VLBDecoder::Flush()
+{
+	dataout.Empty();
+}
+
+size_t VLBDecoder::Read(void *buffer, size_t bufferlen)
+{
+	if (dataout.BytesAvail() > 0)
+	{
+		size_t l = dataout.BytesAvail();
+		if (l > bufferlen)
+			l = bufferlen;
+		dataout.PullBytes((unsigned char *)buffer, (int)l);
+		return l;
+	}
+	return 0;
+}
+
+#define CBCLASS VLBDecoder
+START_DISPATCH;
+CB(OBJ_VLBDECODER_OPEN, Open)
+VCB(OBJ_VLBDECODER_CLOSE, Close)
+CB(OBJ_VLBDECODER_SYNCHRONIZE, Synchronize)
+CB(OBJ_VLBDECODER_DECODEFRAME, DecodeFrame)
+VCB(OBJ_VLBDECODER_FLUSH, Flush)
+CB(OBJ_VLBDECODER_READ, Read)
+END_DISPATCH;