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/****************************************************************************
* *
* OpenNI 1.x Alpha *
* Copyright (C) 2011 PrimeSense Ltd. *
* *
* This file is part of OpenNI. *
* *
* OpenNI 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. *
* *
* OpenNI 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 OpenNI. If not, see <http://www.gnu.org/licenses/>. *
* *
****************************************************************************/
#include "XnJpegCodec.h"
#include <XnCodecIDs.h>
#include <XnLog.h>
/***************/
/* XnJpegCodec */
/***************/
XnJpegCodec::XnJpegCodec() :
m_bRGB(FALSE),
m_nXRes(0),
m_nYRes(0),
m_nQuality(0),
m_bValid(FALSE),
m_hOutputModeCallback(NULL),
m_hCroppingCallback(NULL),
m_image(NULL),
m_context(NULL)
{
m_strNodeName[0] = '\0';
xnOSMemSet(&m_CompJPEGContext, 0, sizeof(m_CompJPEGContext));
xnOSMemSet(&m_UncompJPEGContext, 0, sizeof(m_UncompJPEGContext));
}
XnJpegCodec::~XnJpegCodec()
{
XnStreamFreeCompressImageJ(&m_CompJPEGContext);
XnStreamFreeUncompressImageJ(&m_UncompJPEGContext);
// we can assume context still exists, but we'll have to check node still exists
ImageGenerator imageGen;
if (XN_STATUS_OK == m_context.GetProductionNodeByName(m_strNodeName, imageGen))
{
if (m_hOutputModeCallback)
{
imageGen.UnregisterFromMapOutputModeChange(m_hOutputModeCallback);
}
if (m_hCroppingCallback)
{
imageGen.GetCroppingCap().UnregisterFromCroppingChange(m_hCroppingCallback);
}
}
}
XnCodecID XnJpegCodec::GetCodecID() const
{
return XN_CODEC_JPEG;
}
XnStatus XnJpegCodec::Init(const ProductionNode& node)
{
XnStatus nRetVal = XN_STATUS_OK;
nRetVal = XnCodec::Init(node);
XN_IS_STATUS_OK(nRetVal);
if (node.GetInfo().GetDescription().Type != XN_NODE_TYPE_IMAGE)
{
XN_LOG_ERROR_RETURN(XN_STATUS_BAD_PARAM, XN_MASK_OPEN_NI, "Codec JPEG requires an image node!");
}
strcpy(m_strNodeName, node.GetName());
ImageGenerator image(node);
image.GetContext(m_context);
// register for changes in resolution or cropping
nRetVal = image.RegisterToMapOutputModeChange(NodeConfigurationChangedCallback, this, m_hOutputModeCallback);
XN_IS_STATUS_OK_LOG_ERROR("Register to map output mode change", nRetVal);
if (image.IsCapabilitySupported(XN_CAPABILITY_CROPPING))
{
nRetVal = image.GetCroppingCap().RegisterToCroppingChange(NodeConfigurationChangedCallback, this, m_hCroppingCallback);
XN_IS_STATUS_OK_LOG_ERROR("Register to cropping change", nRetVal);
}
// now init
nRetVal = XnStreamInitCompressImageJ(&m_CompJPEGContext);
XN_IS_STATUS_OK_LOG_ERROR("Init image compressor", nRetVal);
nRetVal = XnStreamInitUncompressImageJ(&m_UncompJPEGContext);
if (nRetVal != XN_STATUS_OK)
{
xnLogError(XN_MASK_OPEN_NI, "Init image uncompressor");
XnStreamFreeCompressImageJ(&m_CompJPEGContext);
return (nRetVal);
}
m_image = image;
nRetVal = OnNodeConfigurationChanged();
XN_IS_STATUS_OK_LOG_ERROR("Handle node configuration change", nRetVal);
m_bValid = TRUE;
return (XN_STATUS_OK);
}
XnFloat XnJpegCodec::GetWorseCompressionRatio() const
{
return XN_STREAM_COMPRESSION_IMAGEJ_WORSE_RATIO;
}
XnUInt32 XnJpegCodec::GetOverheadSize() const
{
return 0;
}
XnStatus XnJpegCodec::CompressImpl(const XnUChar* pData, XnUInt32 /*nDataSize*/, XnUChar* pCompressedData, XnUInt32* pnCompressedDataSize) const
{
if (!m_bValid)
{
xnLogError(XN_MASK_OPEN_NI, "Codec is not valid");
return XN_STATUS_ERROR;
}
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);
}
}
XnStatus XnJpegCodec::DecompressImpl(const XnUChar* pCompressedData, XnUInt32 nCompressedDataSize, XnUChar* pData, XnUInt32* pnDataSize) const
{
if (!m_bValid)
{
return XN_STATUS_ERROR;
}
return XnStreamUncompressImageJ(&m_UncompJPEGContext, pCompressedData, nCompressedDataSize, pData, pnDataSize);
}
XnStatus XnJpegCodec::OnNodeConfigurationChanged()
{
XnStatus nRetVal = XN_STATUS_OK;
m_bValid = FALSE;
XnMapOutputMode outputMode;
nRetVal = m_image.GetMapOutputMode(outputMode);
XN_IS_STATUS_OK_LOG_ERROR("Get map output mode", nRetVal);
m_nXRes = outputMode.nXRes;
m_nYRes = outputMode.nYRes;
if (m_image.IsCapabilitySupported(XN_CAPABILITY_CROPPING))
{
XnCropping cropping;
nRetVal = m_image.GetCroppingCap().GetCropping(cropping);
XN_IS_STATUS_OK_LOG_ERROR("Get cropping", nRetVal);
if (cropping.bEnabled)
{
m_nXRes = cropping.nXSize;
m_nYRes = cropping.nYSize;
}
}
XnPixelFormat pixelFormat = m_image.GetPixelFormat();
switch (pixelFormat)
{
case XN_PIXEL_FORMAT_RGB24:
m_bRGB = TRUE;
break;
case XN_PIXEL_FORMAT_GRAYSCALE_8_BIT:
m_bRGB = FALSE;
break;
case XN_PIXEL_FORMAT_YUV422:
case XN_PIXEL_FORMAT_GRAYSCALE_16_BIT:
default:
XN_LOG_ERROR_RETURN(XN_STATUS_ERROR, XN_MASK_OPEN_NI, "Jpeg currently supports only RGB24 and Grayscale8 pixel formats!");
}
m_nQuality = XN_STREAM_COMPRESSION_JPEG_DEFAULT_QUALITY;
m_bValid = TRUE;
return (XN_STATUS_OK);
}
void XN_CALLBACK_TYPE XnJpegCodec::NodeConfigurationChangedCallback(ProductionNode& /*node*/, void* pCookie)
{
XnJpegCodec* pThis = (XnJpegCodec*)pCookie;
pThis->OnNodeConfigurationChanged();
}
/*********************/
/* ExportedJpegCodec */
/*********************/
ExportedJpegCodec::ExportedJpegCodec() : ExportedCodec(XN_CODEC_JPEG)
{
}
XnCodec* ExportedJpegCodec::CreateCodec()
{
return XN_NEW(XnJpegCodec);
}
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