source: 3DVCSoftware/trunk/source/Lib/TLibCommon/SEI.h @ 42

Last change on this file since 42 was 42, checked in by tech, 12 years ago

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1/* The copyright in this software is being made available under the BSD
2 * License, included below. This software may be subject to other third party
3 * and contributor rights, including patent rights, and no such rights are
4 * granted under this license.
5 *
6 * Copyright (c) 2010-2011, ISO/IEC
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
11 *
12 *  * Redistributions of source code must retain the above copyright notice,
13 *    this list of conditions and the following disclaimer.
14 *  * Redistributions in binary form must reproduce the above copyright notice,
15 *    this list of conditions and the following disclaimer in the documentation
16 *    and/or other materials provided with the distribution.
17 *  * Neither the name of the ISO/IEC nor the names of its contributors may
18 *    be used to endorse or promote products derived from this software without
19 *    specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31 * THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34
35
36#pragma once
37
38/**
39 * Abstract class representing an SEI message with lightweight RTTI.
40 */
41class SEI
42{
43#if BITSTREAM_EXTRACTION
44protected:
45  UInt m_uiLayerId;
46#endif
47
48public:
49  enum PayloadType {
50    USER_DATA_UNREGISTERED = 5,
51    PICTURE_DIGEST = 256,
52  };
53 
54  SEI() {}
55  virtual ~SEI() {}
56 
57  virtual PayloadType payloadType() const = 0;
58
59#if BITSTREAM_EXTRACTION
60  Void      setLayerId              ( UInt u )       { m_uiLayerId = u; }
61  UInt      getLayerId              ()         const { return m_uiLayerId; }
62#endif
63};
64
65class SEIuserDataUnregistered : public SEI
66{
67public:
68  PayloadType payloadType() const { return USER_DATA_UNREGISTERED; }
69
70  SEIuserDataUnregistered()
71    : userData(0)
72    {}
73
74  virtual ~SEIuserDataUnregistered()
75  {
76    delete userData;
77  }
78
79  unsigned char uuid_iso_iec_11578[16];
80  unsigned userDataLength;
81  unsigned char *userData;
82};
83
84class SEIpictureDigest : public SEI
85{
86public:
87  PayloadType payloadType() const { return PICTURE_DIGEST; }
88
89  SEIpictureDigest() {}
90  virtual ~SEIpictureDigest() {}
91 
92  enum Method {
93    MD5,
94    RESERVED,
95  } method;
96
97  unsigned char digest[16];
98};
99
100/**
101 * A structure to collate all SEI messages.  This ought to be replaced
102 * with a list of std::list<SEI*>.  However, since there is only one
103 * user of the SEI framework, this will do initially */
104class SEImessages
105{
106public:
107  SEImessages()
108    : user_data_unregistered(0)
109    , picture_digest(0)
110    {}
111
112  ~SEImessages()
113  {
114    delete user_data_unregistered;
115    delete picture_digest;
116  }
117
118  SEIuserDataUnregistered* user_data_unregistered;
119  SEIpictureDigest* picture_digest;
120};
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