libcapsclient/libs/gempa/caps/mseed/encoder.h

/*****************************************************************************
 * encoder.h
 *
 * Abstract Encoder interface
 *
 * (c) 2000 Andres Heinloo, GFZ Potsdam
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any later
 * version. For more information, see http://www.gnu.org/
 *
 * ================
 * Change log
 * ===============
 *
 * 01.01.2013 Adapted code to CAPS client library requirements (gempa GmbH)
 *****************************************************************************/

#ifndef CAPS_MSEED_ENCODER_H
#define CAPS_MSEED_ENCODER_H

#include "packet.h"
#include "spclock.h"

#include <gempa/caps/datetime.h>
#include <gempa/caps/pluginpacket.h>

#include <list>
#include <sys/types.h>


namespace Gempa {
namespace CAPS {

class Encoder {
	public:
		Encoder(int freqn, int freqd) : _clk(freqn, freqd),
		    _sampleCount(0), _timingQuality(-1) {}
		virtual ~Encoder() {}

		virtual void push(void *sample) = 0;
		virtual void flush() = 0;
		virtual void reset() { _sampleCount = 0; }
		virtual int type() const = 0;

		const SPClock &clk() { return _clk; }

		void setStartTime(const Time &time) { _clk.syncTime(time); }
		const Time currentTime() const { return _clk.getTime(0); }

		int timingQuality() { return _timingQuality; }
		void setTimingQuality(int quality) { _timingQuality = quality; }

		PacketPtr pop() {
			if ( _packetQueue.empty() ) return PacketPtr();

			PacketPtr rec = _packetQueue.front();
			_packetQueue.pop_front(); 
			return rec;
		}

	protected:
		typedef std::list<PacketPtr>  PacketQueue;
		SPClock      _clk;
		int          _sampleCount;
		PacketQueue  _packetQueue;
		int          _timingQuality;
};

}
}

#endif // __ENCODER_H__