Added the JXS functionality again into the core library.

1 files changed, 156 insertions, 0 deletions

diff --git a/src/JXS.cpp b/src/JXS.cpp
new file mode 100644
index 0000000..0cb6eed
--- /dev/null
+++ b/src/JXS.cpp
@@ -0,0 +1,156 @@
+/*
+Copyright (c) 2004-2013, John Hurst,
+Copyright (c) 2020, Thomas Richter Fraunhofer IIS,
+Copyright (c) 2020, Christian Minuth Fraunhofer IIS,
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. The name of the author may not be used to endorse or promote products
+   derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+/* !\file    JXS.h
+\version $Id$
+\brief   JPEG XS parser implementation
+
+This is not a complete enumeration of all things JXS.There is just enough here to
+support parsing picture metadata from a codestream header.
+*/
+
+#include "JXS.h"
+#include <KM_log.h>
+using Kumu::DefaultLogSink;
+
+//
+ASDCP::Result_t
+ASDCP::JXS::GetNextMarker(const byte_t** buf, JXS::Marker& Marker)
+{
+	assert((buf != 0) && (*buf != 0));
+
+	if (*(*buf)++ != 0xff)
+		return ASDCP::RESULT_FAIL;
+
+	Marker.m_Type = (Marker_t)(0xff00 | *(*buf)++);
+	Marker.m_IsSegment = Marker.m_Type != MRK_SOC && Marker.m_Type != MRK_SLH && Marker.m_Type != MRK_EOC;
+
+	if (Marker.m_IsSegment)
+	{
+		Marker.m_DataSize = *(*buf)++ << 8;
+		Marker.m_DataSize |= *(*buf)++;
+		Marker.m_DataSize -= 2;
+		Marker.m_Data = *buf;
+		*buf += Marker.m_DataSize;
+	}
+
+	return ASDCP::RESULT_OK;
+}
+
+//
+const char*
+ASDCP::JXS::GetMarkerString(Marker_t m)
+{
+	switch (m)
+	{
+	case MRK_NIL: return "NIL"; break;
+	case MRK_SOC: return "SOC: Start of codestream"; break;
+	case MRK_EOC: return "SOT: End of codestream"; break;
+	case MRK_PIH: return "PIH: Picture header"; break;
+	case MRK_CDT: return "CDT: Component table"; break;
+	case MRK_WGT: return "WGT: Weights table"; break;
+	case MRK_COM: return "COM: Extension marker"; break;
+	case MRK_NLT: return "NLT: Nonlinearity marker"; break;
+	case MRK_CWD: return "CWD: Component dependent wavelet decomposition marker"; break;
+	case MRK_CTS: return "CTS: Colour transformation specification marker"; break;
+	case MRK_CRG: return "CRG: Component registration marker"; break;
+	case MRK_SLH: return "SLH: Slice header"; break;
+	case MRK_CAP: return "CAP: Capabilities marker"; break;
+	}
+
+	return "Unknown marker code";
+}
+
+//TODO: Dump functions for markers
+
+//
+void
+ASDCP::JXS::Accessor::CAP::Dump(FILE* stream) const
+{
+	if (stream == 0)
+		stream = stderr;
+
+	fprintf(stream, "CAP: \n");
+	fprintf(stream, "  Size: %hu\n", Size());
+	Kumu::hexdump(m_MarkerData, m_DataSize, stream);
+}
+
+//
+void
+ASDCP::JXS::Accessor::NLT::Dump(FILE* stream) const
+{
+	if (stream == 0)
+		stream = stderr;
+
+	fprintf(stream, "SLZ: \n");
+	fprintf(stream, "  Size: %hu\n", Size());
+}
+
+//
+void
+ASDCP::JXS::Accessor::PIH::Dump(FILE* stream) const
+{
+	if (stream == 0)
+		stream = stderr;
+
+	fprintf(stream, "PIH: \n");
+	fprintf(stream, "  LpihSize: %hu\n", LpihSize());
+	fprintf(stream, "  LcodSize: %hu\n", LcodSize());
+	fprintf(stream, "  Ppih: %hu\n", Ppih());
+	fprintf(stream, "  Plev: %hu\n", Plev());
+	fprintf(stream, "  Wf: %hu\n", Wf());
+	fprintf(stream, "  Hf: %hu\n", Hf());
+	fprintf(stream, "  Cw: %hu\n", Cw());
+	fprintf(stream, "  Hsl: %hu\n", Hsl());
+	fprintf(stream, "  Nc: %hu\n", Nc());
+	fprintf(stream, "  Ng: %hu\n", Ng());
+	fprintf(stream, "  Ss: %hu\n", Ss());
+	fprintf(stream, "  Cpih: %hu\n", Cpih());
+	fprintf(stream, "  Nlx: %hu\n", Nlx());
+	fprintf(stream, "  Nly: %hu\n", Nly());
+	Kumu::hexdump(m_MarkerData, m_DataSize, stream);
+}
+
+//
+void
+ASDCP::JXS::Accessor::CDT::Dump(FILE* stream) const
+{
+	if (stream == 0)
+		stream = stderr;
+
+	fprintf(stream, "CDT: \n");
+
+	for (ui32_t i = 0; i < 3; i++) {
+	  fprintf(stream, " Component %u Bc: %hu\n", i,Bc(i));
+	  fprintf(stream, " Component %u Sx: %hu\n", i,Sx(i));
+	  fprintf(stream, " Component %u Sy: %hu\n", i,Sy(i));
+	}
+}
+//
+// end JXS.cpp
+//