1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2023 Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
// you must not claim that you wrote the original software.
// If you use this software in a product, an acknowledgment
// in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
// and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////
#ifndef SFML_SOUNDFILEREADERMP3_HPP
#define SFML_SOUNDFILEREADERMP3_HPP
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#ifndef NOMINMAX
#define NOMINMAX // To avoid windows.h and std::min issue
#endif
#define MINIMP3_NO_STDIO // Minimp3 control define, eliminate file manipulation code which is useless here
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4242 4244 4267 4456 4706)
#endif
#include <minimp3_ex.h>
#ifdef _MSC_VER
#pragma warning(pop)
#endif
#undef NOMINMAX
#undef MINIMP3_NO_STDIO
#include <SFML/Audio/SoundFileReader.hpp>
#include <vector>
namespace sf
{
namespace priv
{
////////////////////////////////////////////////////////////
/// \brief Implementation of sound file reader that handles MP3 files
///
////////////////////////////////////////////////////////////
class SoundFileReaderMp3 : public SoundFileReader
{
public:
////////////////////////////////////////////////////////////
/// \brief Check if this reader can handle a file given by an input stream
///
/// \param stream Source stream to check
///
/// \return True if the file is supported by this reader
///
////////////////////////////////////////////////////////////
static bool check(InputStream& stream);
public:
////////////////////////////////////////////////////////////
/// \brief Default constructor
///
////////////////////////////////////////////////////////////
SoundFileReaderMp3();
////////////////////////////////////////////////////////////
/// \brief Destructor
///
////////////////////////////////////////////////////////////
~SoundFileReaderMp3();
////////////////////////////////////////////////////////////
/// \brief Open a sound file for reading
///
/// \param stream Source stream to read from
/// \param info Structure to fill with the properties of the loaded sound
///
/// \return True if the file was successfully opened
///
////////////////////////////////////////////////////////////
virtual bool open(InputStream& stream, Info& info);
////////////////////////////////////////////////////////////
/// \brief Change the current read position to the given sample offset
///
/// The sample offset takes the channels into account.
/// If you have a time offset instead, you can easily find
/// the corresponding sample offset with the following formula:
/// `timeInSeconds * sampleRate * channelCount`
/// If the given offset exceeds to total number of samples,
/// this function must jump to the end of the file.
///
/// \param sampleOffset Index of the sample to jump to, relative to the beginning
///
////////////////////////////////////////////////////////////
virtual void seek(Uint64 sampleOffset);
////////////////////////////////////////////////////////////
/// \brief Read audio samples from the open file
///
/// \param samples Pointer to the sample array to fill
/// \param maxCount Maximum number of samples to read
///
/// \return Number of samples actually read (may be less than \a maxCount)
///
////////////////////////////////////////////////////////////
virtual Uint64 read(Int16* samples, Uint64 maxCount);
private:
////////////////////////////////////////////////////////////
// Member data
////////////////////////////////////////////////////////////
mp3dec_io_t m_io;
mp3dec_ex_t m_decoder;
Uint64 m_numSamples; // Decompressed audio storage size
Uint64 m_position; // Position in decompressed audio buffer
};
} // namespace priv
} // namespace sf
#endif // SFML_SOUNDFILEREADERMP3_HPP
|
