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/****************************************************************************
* *
* PrimeSense Sensor 5.x Alpha *
* Copyright (C) 2011 PrimeSense Ltd. *
* *
* This file is part of PrimeSense Sensor. *
* *
* PrimeSense Sensor is free software: you can redistribute it and/or modify*
* it under the terms of the GNU Lesser General Public License as published *
* by the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* PrimeSense Sensor is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with PrimeSense Sensor. If not, see <http://www.gnu.org/licenses/>.*
* *
****************************************************************************/
#ifndef __XN_JPEG_CODEC_H__
#define __XN_JPEG_CODEC_H__
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include "XnCodecBase.h"
#include <XnFormats/XnStreamCompression.h>
//---------------------------------------------------------------------------
// Types
//---------------------------------------------------------------------------
class XN_FORMATS_CPP_API XnJpegCodec : public XnCodecBase
{
public:
XnJpegCodec(XnBool bRGB, XnUInt32 nXRes, XnUInt32 nYRes, XnUInt32 nQuality = XN_STREAM_COMPRESSION_JPEG_DEFAULT_QUALITY) :
m_bRGB(bRGB), m_nXRes(nXRes), m_nYRes(nYRes), m_nQuality(nQuality)
{}
~XnJpegCodec()
{
XnStreamFreeCompressImageJ(&m_CompJPEGContext);
XnStreamFreeUncompressImageJ(&m_UncompJPEGContext);
}
XnStatus Init()
{
XnStatus nRetVal = XN_STATUS_OK;
nRetVal = XnStreamInitCompressImageJ(&m_CompJPEGContext);
XN_IS_STATUS_OK(nRetVal);
nRetVal = XnStreamInitUncompressImageJ(&m_UncompJPEGContext);
if (nRetVal != XN_STATUS_OK)
{
XnStreamFreeCompressImageJ(&m_CompJPEGContext);
return (nRetVal);
}
return (XN_STATUS_OK);
}
virtual XnCompressionFormats GetCompressionFormat() const { return XN_COMPRESSION_JPEG; }
virtual XnFloat GetWorseCompressionRatio() const { return XN_STREAM_COMPRESSION_IMAGEJ_WORSE_RATIO; }
virtual XnUInt32 GetOverheadSize() const { return 0; }
protected:
XN_DISABLE_COPY_AND_ASSIGN(XnJpegCodec);
virtual XnStatus CompressImpl(const XnUChar* pData, XnUInt32 /*nDataSize*/, XnUChar* pCompressedData, XnUInt32* pnCompressedDataSize)
{
if (m_bRGB)
{
return XnStreamCompressImage24J(&m_CompJPEGContext, pData, pCompressedData, pnCompressedDataSize, m_nXRes, m_nYRes, m_nQuality);
}
else
{
return XnStreamCompressImage8J(&m_CompJPEGContext, pData, pCompressedData, pnCompressedDataSize, m_nXRes, m_nYRes, m_nQuality);
}
}
virtual XnStatus DecompressImpl(const XnUChar* pCompressedData, XnUInt32 nCompressedDataSize, XnUChar* pData, XnUInt32* pnDataSize)
{
return XnStreamUncompressImageJ(&m_UncompJPEGContext, pCompressedData, nCompressedDataSize, pData, pnDataSize);
}
private:
const XnBool m_bRGB;
const XnUInt32 m_nXRes;
const XnUInt32 m_nYRes;
const XnUInt32 m_nQuality;
XnStreamCompJPEGContext m_CompJPEGContext;
XnStreamUncompJPEGContext m_UncompJPEGContext;
};
#endif //__XN_JPEG_CODEC_H__
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