+++ /dev/null
-/*
-Copyright (c) 2005-2009, John Hurst
-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 JP2K.cpp
- \version $Id: JP2K.cpp,v 1.8 2010/06/17 03:33:17 jhurst Exp $
- \brief JPEG 2000 parser implementation
-
- This is not a complete implementation of all things JP2K. There is just enough here to
- support parsing picture metadata from a codestream header.
-*/
-
-#include <JP2K.h>
-#include <KM_log.h>
-using Kumu::DefaultLogSink;
-
-
-// when indexed with the second byte of a marker code, this table will procuce one of
-// two values:
-// 0 - the marker is a standalone marker
-// 1 - the marker designates a marker segment
-//
-const byte_t MarkerSegmentMap[] =
- {
- /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
- /* 0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0
- /* 1 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 1
- /* 2 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 2
- /* 3 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 3
- /* 4 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 4
- /* 5 */ 0, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, // 5
- /* 6 */ 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 6
- /* 7 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 7
- /* 8 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 8
- /* 9 */ 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 9
- /* a */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // a
- /* b */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // b
- /* c */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // c
- /* d */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // d
- /* e */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // e
- /* f */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // f
- /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
- };
-
-
-//
-ASDCP::Result_t
-ASDCP::JP2K::GetNextMarker(const byte_t** buf, JP2K::Marker& Marker)
-{
- assert((buf != 0) && (*buf != 0 ));
-
- if ( **buf != 0xff )
- return ASDCP::RESULT_FAIL;
-
- Marker.m_IsSegment = (MarkerSegmentMap[*(++(*buf))] == 1);
- Marker.m_Type = (Marker_t)(0xff00 | *(*buf)++);
-
- 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;
- }
-
-
- if ( Marker.m_DataSize != 0 && Marker.m_DataSize < 3 )
- {
- DefaultLogSink().Error("Illegal data size: %u\n", Marker.m_DataSize);
- return ASDCP::RESULT_FAIL;
- }
-
- return ASDCP::RESULT_OK;
-}
-
-
-//-------------------------------------------------------------------------------------------------------
-//
-
-//
-void
-ASDCP::JP2K::Accessor::SIZ::ReadComponent(ui32_t index, ASDCP::JP2K::ImageComponent_t& IC)
-{
- assert ( index < Csize() );
- const byte_t* p = m_MarkerData + 36 + (index * 3);
- IC.Ssize = *p++;
- IC.XRsize = *p++;
- IC.YRsize = *p;
-}
-
-//
-void
-ASDCP::JP2K::Accessor::SIZ::Dump(FILE* stream)
-{
- if ( stream == 0 )
- stream = stderr;
-
- fprintf(stream, "SIZ: \n");
- fprintf(stream, " Rsize: %hu\n", Rsize());
- fprintf(stream, " Xsize: %u\n", Xsize());
- fprintf(stream, " Ysize: %u\n", Ysize());
- fprintf(stream, " XOsize: %u\n", XOsize());
- fprintf(stream, " YOsize: %u\n", YOsize());
- fprintf(stream, " XTsize: %u\n", XTsize());
- fprintf(stream, " YTsize: %u\n", YTsize());
- fprintf(stream, "XTOsize: %u\n", XTOsize());
- fprintf(stream, "YTOsize: %u\n", YTOsize());
- fprintf(stream, " Csize: %u\n", Csize());
-
- if ( Csize() > 0 )
- {
- fprintf(stream, "Components\n");
-
- for ( ui32_t i = 0; i < Csize(); i++ )
- {
- ImageComponent_t TmpComp;
- ReadComponent(i, TmpComp);
- fprintf(stream, "%u: ", i);
- fprintf(stream, "%u, %u, %u\n", TmpComp.Ssize, TmpComp.XRsize, TmpComp.YRsize);
- }
- }
-}
-
-//
-void
-ASDCP::JP2K::Accessor::COM::Dump(FILE* stream)
-{
- if ( stream == 0 )
- stream = stderr;
-
- if ( IsText() )
- {
- char* t_str = (char*)malloc(CommentSize() + 1);
- assert( t_str != 0 );
- ui32_t cs = CommentSize();
- memcpy(t_str, CommentData(), cs);
- t_str[cs] = 0;
- fprintf(stream, "COM:%s\n", t_str);
- }
- else
- {
- fprintf(stream, "COM:\n");
- Kumu::hexdump(CommentData(), CommentSize(), stream);
- }
-}
-
-
-//-------------------------------------------------------------------------------------------------------
-//
-
-
-//
-void
-ASDCP::JP2K::Marker::Dump(FILE* stream) const
-{
- if ( stream == 0 )
- stream = stderr;
-
- fprintf(stream, "Marker%s 0x%04x: %s", (m_IsSegment ? " segment" : ""), m_Type, GetMarkerString(m_Type));
-
- if ( m_IsSegment )
- fprintf(stream, ", 0x%0x bytes", m_DataSize);
-
- fputc('\n', stream);
-}
-
-//
-const char*
-ASDCP::JP2K::GetMarkerString(Marker_t m)
-{
- switch ( m )
- {
- case MRK_NIL: return "NIL"; break;
- case MRK_SOC: return "SOC: Start of codestream"; break;
- case MRK_SOT: return "SOT: Start of tile-part"; break;
- case MRK_SOD: return "SOD: Start of data"; break;
- case MRK_EOC: return "EOC: End of codestream"; break;
- case MRK_SIZ: return "SIZ: Image and tile size"; break;
- case MRK_COD: return "COD: Coding style default"; break;
- case MRK_COC: return "COC: Coding style component"; break;
- case MRK_RGN: return "RGN: Region of interest"; break;
- case MRK_QCD: return "QCD: Quantization default"; break;
- case MRK_QCC: return "QCC: Quantization component"; break;
- case MRK_POC: return "POC: Progression order change"; break;
- case MRK_TLM: return "TLM: Tile-part lengths"; break;
- case MRK_PLM: return "PLM: Packet length, main header"; break;
- case MRK_PLT: return "PLT: Packet length, tile-part header"; break;
- case MRK_PPM: return "PPM: Packed packet headers, main header"; break;
- case MRK_PPT: return "PPT: Packed packet headers, tile-part header"; break;
- case MRK_SOP: return "SOP: Start of packet"; break;
- case MRK_EPH: return "EPH: End of packet header"; break;
- case MRK_CRG: return "CRG: Component registration"; break;
- case MRK_COM: return "COM: Comment"; break;
- }
-
- return "Unknown marker code";
-}
-
-//
-// end JP2K.cpp
-//
projects / libdcp.git / blobdiff