mpegutils.h
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1 /***************************************************************************
2  copyright : (C) 2015 by Tsuda Kageyu
3  email : tsuda.kageyu@gmail.com
4  ***************************************************************************/
5 
6 /***************************************************************************
7  * This library is free software; you can redistribute it and/or modify *
8  * it under the terms of the GNU Lesser General Public License version *
9  * 2.1 as published by the Free Software Foundation. *
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12  * WITHOUT ANY WARRANTY; without even the implied warranty of *
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14  * Lesser General Public License for more details. *
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21  * Alternatively, this file is available under the Mozilla Public *
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25 
26 #ifndef TAGLIB_MPEGUTILS_H
27 #define TAGLIB_MPEGUTILS_H
28 
29 // THIS FILE IS NOT A PART OF THE TAGLIB API
30 
31 #ifndef DO_NOT_DOCUMENT // tell Doxygen not to document this header
32 
33 namespace TagLib
34 {
35  namespace MPEG
36  {
37  namespace
38  {
39 
48  inline bool isFrameSync(const ByteVector &bytes, unsigned int offset = 0)
49  {
50  // 0xFF in the second byte is possible in theory, but it's very unlikely.
51 
52  const unsigned char b1 = bytes[offset + 0];
53  const unsigned char b2 = bytes[offset + 1];
54  return (b1 == 0xFF && b2 != 0xFF && (b2 & 0xE0) == 0xE0);
55  }
56 
57  }
58  }
59 }
60 
61 #endif
62 
63 #endif
A namespace for all TagLib related classes and functions.
Definition: apefile.h:41