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/* |
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* Copyright (C) 2005-2008 by Pieter Palmers |
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* |
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* This file is part of FFADO |
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* FFADO = Free Firewire (pro-)audio drivers for linux |
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* |
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* FFADO is based upon FreeBoB. |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 2 of the License, or |
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* (at your option) version 3 of the License. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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#ifndef __FFADO_PACKETBUFFER__ |
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#define __FFADO_PACKETBUFFER__ |
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#include "../debugmodule/debugmodule.h" |
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#include <libraw1394/raw1394.h> |
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#include "libutil/ringbuffer.h" |
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namespace Streaming { |
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class PacketBuffer { |
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// note: all sizes in quadlets |
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public: |
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PacketBuffer(int headersize, int buffersize, int max_packetsize) |
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: m_headersize(headersize), m_buffersize(buffersize), m_max_packetsize(max_packetsize), |
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payload_buffer(0), header_buffer(0), len_buffer(0) |
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{}; |
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virtual ~PacketBuffer(); |
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void setVerboseLevel(int l) { setDebugLevel( l ); }; |
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int initialize(); |
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void flush(); |
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int addPacket(quadlet_t *packet, int packet_len); |
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int getNextPacket(quadlet_t *packet, int packet_len); |
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int getBufferFillPackets(); |
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int getBufferFillPayload(); |
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protected: |
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int m_headersize; |
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int m_buffersize; |
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int m_max_packetsize; |
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ffado_ringbuffer_t *payload_buffer; |
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ffado_ringbuffer_t *header_buffer; |
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ffado_ringbuffer_t *len_buffer; |
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DECLARE_DEBUG_MODULE; |
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}; |
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} |
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#endif /* __FFADO_PACKETBUFFER__ */ |
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