/usr/include/GDF/ChannelData.h is in libgdf-dev 0.1.2-2build3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// This file is part of libGDF.
//
// libGDF 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.
//
// libGDF 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 libGDF. If not, see <http://www.gnu.org/licenses/>.
//
// Copyright 2010 Martin Billinger
#ifndef __CHANNELDATA_H_INCLUDED
#define __CHANNELDATA_H_INCLUDED
#include "ChannelDataBase.h"
#include <vector>
#include <stddef.h>
#include <assert.h>
//#include <iostream>
namespace gdf
{
/// Contains data samples for a channel of given type and length
/** Only access functions of type T are reimplemented from ChannelDataBase. Calling addSample(), blitSamples() or fill() with
the wrong data type throws an exception.
*/
template<typename T>
class ChannelData : public ChannelDataBase
{
public:
/// Constructor
ChannelData( size_t length )
{
m_data.resize( length );
m_writepos = 0;
}
/// Copy Constructor
ChannelData( ChannelDataBase *base )
{
ChannelData<T>* other = reinterpret_cast<ChannelData<T>*>( base );
m_data.resize( other->m_data.size( ) );
size_t N = m_data.size();
for( size_t i=0; i<N; i++)
m_data[i] = other->m_data[i];
m_writepos = other->m_writepos;
}
/// Destructor
virtual ~ChannelData( )
{
//std::cout << "~ChannelData( )" << std::endl;
}
/// Add a single sample to the channel. Channel must not be full.
void addSample( const T value )
{
assert( getFree( ) > 0 );
m_data[m_writepos++] = value;
}
/// Blit a given number of samples into channel. That number of samples must be free.
void blitSamples( const T *values, const size_t num )
{
assert( getFree( ) >= num );
for( size_t i=0; i<num; i++ )
m_data[m_writepos++] = values[i];
}
/// Fills a given number of samples with value. That number of samples must be free.
void fill( const T value, const size_t num )
{
assert( getFree( ) >= num );
for( size_t i=0; i<num; i++ )
m_data[m_writepos++] = value;
}
/// set sapmle value
void setSample( size_t pos, T rawval )
{
m_data[pos] = rawval;
}
/// get sapmle value
T getSample( size_t pos, T /*dummy*/ )
{
return m_data[pos];
}
/// Reset read and write positions
virtual void clear( )
{
m_writepos = 0;
}
/// Get number of free samples
size_t getFree( )
{
return m_data.size( ) - m_writepos;
}
/// Get number of written samples.
virtual size_t getWritten( )
{
return m_writepos;
}
/// Serializer
void tostream( std::ostream &out )
{
//std::cout << "Channel -> Stream" << std::endl;
//out.write( reinterpret_cast<char*>(&m_data[0]), sizeof(T)*m_data.size() );
for( size_t i=0; i<m_data.size(); i++ )
{
writeLittleEndian( out, m_data[i] );
}
}
/// Deserializer
void fromstream( std::istream &in )
{
//std::cout << "Stream -> Channel" << std::endl;
//in.read( reinterpret_cast<char*>(&m_data[0]), sizeof(T)*m_data.size() );
for( size_t i=0; i<m_data.size(); i++ )
{
readLittleEndian( in, m_data[i] );
}
//char *charbuf = new char[sizeof(T)*m_data.size()];
/*in.read( charbuf, sizeof(T)*m_data.size() );
for( size_t i=0; i<m_data.size(); i++ )
std::cout << ((T*)charbuf)[i] << " ";*/
/*for( size_t i=0; i<m_data.size(); i++ )
std::cout << m_data[i] << " ";*/
}
protected:
/// Get reference to data
std::vector<T> &getData( ) { return m_data; }
/// Get pointer to data
std::vector<T> *getDataPtr( ) { return &m_data; }
private:
std::vector<T> m_data;
size_t m_writepos;
};
}
#endif
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