/usr/include/GDF/EventHeader.h is in libgdf-dev 0.1.2-2+b3.
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, Christoph Eibel
#ifndef __EVENTHEADER_H_INCLUDED__
#define __EVENTHEADER_H_INCLUDED__
#include "GDF/Types.h"
#include <vector>
#define GDF_MAXNUM_EVENTS 16777215
namespace gdf
{
struct Mode1Event
{
bool operator<( const Mode1Event &e ) const { return position < e.position; }
uint32 position;
uint16 type;
};
struct Mode3Event
{
bool operator<( const Mode3Event &e ) const { return position < e.position; }
uint32 position;
uint16 type;
uint16 channel;
union {
uint32 duration;
float32 value;
};
};
/// Class that provides access to GDF events
class EventHeader
{
public:
/// Constructor
EventHeader( );
/// Destructor
virtual ~EventHeader( );
/// Serializer
void toStream( std::ostream &stream );
/// Deserializer
void fromStream( std::istream &stream );
/// Set Event Mode
/** mode can be 1 or 3
1: (default) Events are stored as position,type pairs
3: Events are stored with position and type, associated to a channel and have a duration
or value. */
void setMode( uint8 mode );
/// Set Sampling Rate associated with event positions
/** Events are not actually sampled, but their position is stored in samples rather than seconds.
In order to convert event positions between time and sample, this sampling rate is used. */
void setSamplingRate( float32 fs );
/// returns event mode
uint8 getMode( ) { return m_mode; }
/// returns sampling rate
float32 getSamplingRate( ) { return m_efs; }
/// Number of events
uint32 getNumEvents( );
/// Returns a Mode 1 Event
void getEvent( uint32 index, Mode1Event &ev );
/// Returns all Mode 1 Events
std::vector<Mode1Event> getMode1Events () const;
/// Returns all Mode 3 Events
std::vector<Mode3Event> getMode3Events () const;
/// Returns a Mode 3 Event
void getEvent( uint32 index, Mode3Event &ev );
/// Add a Mode 1 Event
void addEvent( const Mode1Event &ev );
/// Add a Mode 3 Event
void addEvent( const Mode3Event &ev );
/// Sort Events by position
void sort( );
/// Clears all Events
void clear( );
private:
uint8 m_mode;
//uint32 m_num_ev; /// only 3 bytes are used. Maximum is 16777215
float32 m_efs; /// sampling rate associated with event positions
std::vector<Mode1Event> m_mode1;
std::vector<Mode3Event> m_mode3;
};
}
#endif // EVENTHEADER_H
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