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Ap4SyntheticSampleTable.cpp
资源名称：fullMPCcode.rar　[点击查看]
上传用户：xjjlds
上传日期：2015-12-05
资源大小：22823k
文件大小：5k
源码类别：

多媒体编程

开发平台：

Visual C++

Ap4SyntheticSampleTable.cpp：源码内容
  1. /*****************************************************************
  2. |
  3. |    AP4 - Synthetic Sample Table
  4. |
  5. |    Copyright 2003-2005 Gilles Boccon-Gibod & Julien Boeuf
  6. |
  7. |
  8. |    This file is part of Bento4/AP4 (MP4 Atom Processing Library).
  9. |
  10. |    Unless you have obtained Bento4 under a difference license,
  11. |    this version of Bento4 is Bento4|GPL.
  12. |    Bento4|GPL is free software; you can redistribute it and/or modify
  13. |    it under the terms of the GNU General Public License as published by
  14. |    the Free Software Foundation; either version 2, or (at your option)
  15. |    any later version.
  16. |
  17. |    Bento4|GPL is distributed in the hope that it will be useful,
  18. |    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19. |    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20. |    GNU General Public License for more details.
  21. |
  22. |    You should have received a copy of the GNU General Public License
  23. |    along with Bento4|GPL; see the file COPYING.  If not, write to the
  24. |    Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  25. |    02111-1307, USA.
  26. |
  27.  ****************************************************************/
  29. /*----------------------------------------------------------------------
  30. |       includes
  31. +---------------------------------------------------------------------*/
  32. #include "Ap4.h"
  33. #include "Ap4Atom.h"
  34. #include "Ap4SyntheticSampleTable.h"
  36. /*----------------------------------------------------------------------
  37. |       AP4_SyntheticSampleTable::AP4_SyntheticSampleTable()
  38. +---------------------------------------------------------------------*/
  39. AP4_SyntheticSampleTable::AP4_SyntheticSampleTable()
  40. {
  41. }
  43. /*----------------------------------------------------------------------
  44. |       AP4_SyntheticSampleTable::~AP4_SyntheticSampleTable()
  45. +---------------------------------------------------------------------*/
  46. AP4_SyntheticSampleTable::~AP4_SyntheticSampleTable()
  47. {
  48.     m_SampleDescriptions.DeleteReferences();
  49. }
  51. /*----------------------------------------------------------------------
  52. |       AP4_SyntheticSampleTable::GetSample
  53. +---------------------------------------------------------------------*/
  54. AP4_Result
  55. AP4_SyntheticSampleTable::GetSample(AP4_Ordinal index, AP4_Sample& sample)
  56. {
  57.     if (index < m_Samples.ItemCount()) {
  58.         sample = m_Samples[index];
  59.         return AP4_SUCCESS;
  60.     } else {
  61.         return AP4_ERROR_OUT_OF_RANGE;
  62.     }
  63. }
  65. /*----------------------------------------------------------------------
  66. |       AP4_SyntheticSampleTable::GetSampleCount
  67. +---------------------------------------------------------------------*/
  68. AP4_Cardinal 
  69. AP4_SyntheticSampleTable::GetSampleCount()
  70. {
  71.     return m_Samples.ItemCount();
  72. }
  74. /*----------------------------------------------------------------------
  75. |       AP4_SyntheticSampleTable::GetSampleDescriptionCount
  76. +---------------------------------------------------------------------*/
  77. AP4_Cardinal 
  78. AP4_SyntheticSampleTable::GetSampleDescriptionCount()
  79. {
  80.     return m_SampleDescriptions.ItemCount();
  81. }
  83. /*----------------------------------------------------------------------
  84. |       AP4_SyntheticSampleTable::GetSampleDescription
  85. +---------------------------------------------------------------------*/
  86. AP4_SampleDescription* 
  87. AP4_SyntheticSampleTable::GetSampleDescription(AP4_Ordinal index)
  88. {
  89.     AP4_SampleDescription* description;
  90.     if (AP4_SUCCEEDED(m_SampleDescriptions.Get(index, description))) {
  91.         return description;
  92.     } else {
  93.         return NULL;
  94.     }
  95. }
  97. /*----------------------------------------------------------------------
  98. |       AP4_SyntheticSampleTable::AddSampleDescription
  99. +---------------------------------------------------------------------*/
  100. AP4_Result 
  101. AP4_SyntheticSampleTable::AddSampleDescription(AP4_SampleDescription* description)
  102. {
  103.     return m_SampleDescriptions.Add(description);
  104. }
  106. /*----------------------------------------------------------------------
  107. |       AP4_SyntheticSampleTable::AddSample
  108. +---------------------------------------------------------------------*/
  109. AP4_Result 
  110. AP4_SyntheticSampleTable::AddSample(AP4_ByteStream& data_stream,
  111.                                     AP4_Offset      offset,
  112.                                     AP4_Size        size,
  113.                                     AP4_Ordinal     description_index,
  114.                                     AP4_TimeStamp   cts,
  115.                                     AP4_TimeStamp   dts,
  116.                                     bool            sync)
  117. {
  118.     AP4_Sample sample(data_stream, offset, size, description_index, dts, cts-dts);
  119.     return m_Samples.Append(sample);
  120. }
  122. /*----------------------------------------------------------------------
  123. |       AP4_SyntheticSampleTable::GetSample
  124. +---------------------------------------------------------------------*/
  125. AP4_Result 
  126. AP4_SyntheticSampleTable::GetSampleIndexForTimeStamp(AP4_TimeStamp ts, 
  127.                                                      AP4_Ordinal& index)
  128. {
  129.     return AP4_ERROR_NOT_SUPPORTED_YET;
  130. }