root/branches/streaming-rework/src/libstreaming/PacketBuffer.h

Revision 201, 1.9 kB (checked in by pieterpalmers, 18 years ago)

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1 /* $Id$ */
2
3 /*
4  *   FreeBob Streaming API
5  *   FreeBob = Firewire (pro-)audio for linux
6  *
7  *   http://freebob.sf.net
8  *
9  *   Copyright (C) 2005,2006 Pieter Palmers <pieterpalmers@users.sourceforge.net>
10  *
11  *   This program is free software {} you can redistribute it and/or modify
12  *   it under the terms of the GNU General Public License as published by
13  *   the Free Software Foundation {} either version 2 of the License, or
14  *   (at your option) any later version.
15  *
16  *   This program is distributed in the hope that it will be useful,
17  *   but WITHOUT ANY WARRANTY {} without even the implied warranty of
18  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  *   GNU General Public License for more details.
20  *
21  *   You should have received a copy of the GNU General Public License
22  *   along with this program {} if not, write to the Free Software
23  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24  *
25  *
26  *
27  */
28 #ifndef __FREEBOB_PACKETBUFFER__
29 #define __FREEBOB_PACKETBUFFER__
30
31 #include "../debugmodule/debugmodule.h"
32 #include <libraw1394/raw1394.h>
33 #include "ringbuffer.h"
34
35 namespace FreebobStreaming {
36
37 class PacketBuffer {
38 // note: all sizes in quadlets
39 public:
40
41         PacketBuffer(int headersize, int buffersize, int max_packetsize)
42            : m_headersize(headersize), m_buffersize(buffersize), m_max_packetsize(max_packetsize),
43              payload_buffer(0), header_buffer(0), len_buffer(0)
44         {};
45
46         virtual ~PacketBuffer();
47         void setVerboseLevel(int l) { setDebugLevel( l ); };
48
49         int initialize();
50
51         void flush();
52
53         int addPacket(quadlet_t *packet, int packet_len);
54
55         int getNextPacket(quadlet_t *packet, int packet_len);
56         int getBufferFillPackets();
57         int getBufferFillPayload();
58
59 protected:
60         int m_headersize;
61         int m_buffersize;
62         int m_max_packetsize;
63
64         freebob_ringbuffer_t *payload_buffer;
65         freebob_ringbuffer_t *header_buffer;
66         freebob_ringbuffer_t *len_buffer;
67        
68     DECLARE_DEBUG_MODULE;
69
70 };
71
72 }
73
74 #endif /* __FREEBOB_PACKETBUFFER__ */
75
76
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