/*
* Copyright (C) 2005-2008 by Pieter Palmers
*
* This file is part of FFADO
* FFADO = Free Firewire (pro-)audio drivers for linux
*
* FFADO is based upon FreeBoB.
*
* 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 of the License, or
* (at your option) version 3 of the License.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*
*/
#ifndef __FFADO_PACKETBUFFER__
#define __FFADO_PACKETBUFFER__
#include "../debugmodule/debugmodule.h"
#include
#include "libutil/ringbuffer.h"
namespace Streaming {
class PacketBuffer {
// note: all sizes in quadlets
public:
PacketBuffer(int headersize, int buffersize, int max_packetsize)
: m_headersize(headersize), m_buffersize(buffersize), m_max_packetsize(max_packetsize),
payload_buffer(0), header_buffer(0), len_buffer(0)
{};
virtual ~PacketBuffer();
void setVerboseLevel(int l) { setDebugLevel( l ); };
int initialize();
void flush();
int addPacket(quadlet_t *packet, int packet_len);
int getNextPacket(quadlet_t *packet, int packet_len);
int getBufferFillPackets();
int getBufferFillPayload();
protected:
int m_headersize;
int m_buffersize;
int m_max_packetsize;
ffado_ringbuffer_t *payload_buffer;
ffado_ringbuffer_t *header_buffer;
ffado_ringbuffer_t *len_buffer;
DECLARE_DEBUG_MODULE;
};
}
#endif /* __FFADO_PACKETBUFFER__ */