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/* ***** BEGIN LICENSE BLOCK *****
*
* $Id: transform_byteio.cpp,v 1.10 2008/01/31 11:25:15 tjdwave Exp $ $Name: $
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
*
* The Original Code is BBC Research and Development code.
*
* The Initial Developer of the Original Code is the British Broadcasting
* Corporation.
* Portions created by the Initial Developer are Copyright (C) 2004.
* All Rights Reserved.
*
* Contributor(s): Anuradha Suraparaju (Original Author)
* Andrew Kennedy
*
* Alternatively, the contents of this file may be used under the terms of
* the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser
* Public License Version 2.1 (the "LGPL"), in which case the provisions of
* the GPL or the LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the either
* the GPL or LGPL and not to allow others to use your version of this file
* under the MPL, indicate your decision by deleting the provisions above
* and replace them with the notice and other provisions required by the GPL
* or LGPL. If you do not delete the provisions above, a recipient may use
* your version of this file under the terms of any one of the MPL, the GPL
* or the LGPL.
* ***** END LICENSE BLOCK ***** */
#include <libdirac_byteio/transform_byteio.h>
#include <libdirac_common/dirac_exception.h>
using namespace dirac;
TransformByteIO::TransformByteIO(PictureParams& fparams,
CodecParams& cparams):
ByteIO(),
m_fparams(fparams),
m_cparams(cparams),
m_default_cparams(cparams.GetVideoFormat(), fparams.GetPictureType(), fparams.Refs().size(), true)
{
}
TransformByteIO::TransformByteIO(ByteIO &byte_io,
PictureParams& fparams,
CodecParams& cparams):
ByteIO(byte_io),
m_fparams(fparams),
m_cparams(cparams),
m_default_cparams(cparams.GetVideoFormat(), fparams.GetPictureType(), fparams.Refs().size(), true)
{
}
TransformByteIO::~TransformByteIO()
{
for(size_t index = 0; index < m_component_list.size(); ++index)
delete m_component_list[index];
}
void TransformByteIO::CollateByteStats(DiracByteStats& dirac_byte_stats)
{
// set number of component bytes
for(size_t index = 0; index < m_component_list.size(); ++index)
m_component_list[index]->CollateByteStats(dirac_byte_stats);
}
int TransformByteIO::GetSize() const
{
//std::cerr << "Transform Size=" << ByteIO::GetSize() << std::endl;
int size = 0;
for(size_t index = 0; index < m_component_list.size(); ++index)
size += m_component_list[index]->GetSize();
return ByteIO::GetSize() + size;
}
const std::string TransformByteIO::GetBytes()
{
std::string bytes;
for(size_t index = 0; index < m_component_list.size(); ++index)
bytes += m_component_list[index]->GetBytes();
return ByteIO::GetBytes() + bytes;
}
void TransformByteIO::Output()
{
// Zero Transform flag - applies only to inter frames
if(m_fparams.PicSort().IsInter())
WriteBit(false);
// Wavelet index
WriteUint(m_cparams.TransformFilter());
// Wavelet Depth
WriteUint(m_cparams.TransformDepth());
// Spatial Partition flag
WriteBit(m_cparams.SpatialPartition());
if(m_cparams.SpatialPartition())
{
for(unsigned int i = 0; i <= m_cparams.TransformDepth(); ++i)
{
const CodeBlocks &cb = m_cparams.GetCodeBlocks(i);
// Number of Horizontal code blocks for level i
WriteUint(cb.HorizontalCodeBlocks());
// Number of Vertical code block for level i
WriteUint(cb.VerticalCodeBlocks());
}
// Code block mode index
WriteUint(m_cparams.GetCodeBlockMode());
}
// Flush output for bend alignment
ByteAlignOutput();
}
void TransformByteIO::Input()
{
// Byte Alignment
ByteAlignInput();
m_cparams.SetZeroTransform(false);
// Zero transform flag - applies only for inter frames
if(m_fparams.PicSort().IsInter())
m_cparams.SetZeroTransform(ReadBool());
if(m_cparams.ZeroTransform())
return;
// Transform filter
m_cparams.SetTransformFilter(ReadUint());
// transform depth
m_cparams.SetTransformDepth(ReadUint());
// Spatial partition flag
m_cparams.SetSpatialPartition(ReadBool());
if(m_cparams.SpatialPartition())
{
// Input number of code blocks for each level
for(unsigned int i = 0; i <= m_cparams.TransformDepth(); ++i)
{
// number of horizontal code blocks for level i
unsigned int hblocks = ReadUint();
// number of vertical code blocks for level i
unsigned int vblocks = ReadUint();
m_cparams.SetCodeBlocks(i, hblocks, vblocks);
}
// Code block mode index
m_cparams.SetCodeBlockMode(ReadUint());
}
// Byte Alignment
ByteAlignInput();
}
void TransformByteIO::AddComponent(ComponentByteIO* component_byteio)
{
m_component_list.push_back(component_byteio);
}
//-------------private---------------------------------------------------------------
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