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rawdecoder.h
1 // © Copyright 2010 - 2014 BlackTopp Studios Inc.
2 /* This file is part of The Mezzanine Engine.
3 
4  The Mezzanine Engine is free software: you can redistribute it and/or modify
5  it under the terms of the GNU General Public License as published by
6  the Free Software Foundation, either version 3 of the License, or
7  (at your option) any later version.
8 
9  The Mezzanine Engine is distributed in the hope that it will be useful,
10  but WITHOUT ANY WARRANTY; without even the implied warranty of
11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  GNU General Public License for more details.
13 
14  You should have received a copy of the GNU General Public License
15  along with The Mezzanine Engine. If not, see <http://www.gnu.org/licenses/>.
16 */
17 /* The original authors have included a copy of the license specified above in the
18  'Docs' folder. See 'gpl.txt'
19 */
20 /* We welcome the use of the Mezzanine engine to anyone, including companies who wish to
21  Build professional software and charge for their product.
22 
23  However there are some practical restrictions, so if your project involves
24  any of the following you should contact us and we will try to work something
25  out:
26  - DRM or Copy Protection of any kind(except Copyrights)
27  - Software Patents You Do Not Wish to Freely License
28  - Any Kind of Linking to Non-GPL licensed Works
29  - Are Currently In Violation of Another Copyright Holder's GPL License
30  - If You want to change our code and not add a few hundred MB of stuff to
31  your distribution
32 
33  These and other limitations could cause serious legal problems if you ignore
34  them, so it is best to simply contact us or the Free Software Foundation, if
35  you have any questions.
36 
37  Joseph Toppi - toppij@gmail.com
38  John Blackwood - makoenergy02@gmail.com
39 */
40 // Copyright (c) 2008-2010 Raynaldo (Wildicv) Rivera, Joshua (Dark_Kilauea) Jones
41 // This file is part of the "cAudio Engine"
42 // For conditions of distribution and use, see copyright notice in cAudio-ZLIBLicense.txt
43 #ifndef _audiorawdecoder_h
44 #define _audiorawdecoder_h
45 
46 #ifdef ENABLE_RAW_ENCODE
47 
48 #include "Audio/decoder.h"
49 
50 namespace Mezzanine
51 {
52  namespace Audio
53  {
54  ///////////////////////////////////////////////////////////////////////////////
55  /// @brief This is a @ref iDecoder implementation for un-encoded data.
56  /// @details
57  ///////////////////////////////////////
58  class MEZZ_LIB RawDecoder : public iDecoder
59  {
60  protected:
61  /// @internal
62  /// @brief This is a shared pointer to the stream being decoded.
63  Resource::DataStreamPtr RawStream;
64  /// @internal
65  /// @brief The frequency to expect when decoding the stream.
66  UInt32 Frequency;
67  /// @internal
68  /// @brief The configuration of the samples to expect when decoding the stream.
69  Audio::BitConfig BitConfiguration;
70  public:
71  /// @brief Class constructor.
72  /// @param Stream The stream to decode.
73  /// @param Freq The frequency of the audio being decoded.
74  /// @param Config The bit configuration of the audio being decoded.
75  RawDecoder(Resource::DataStreamPtr Stream, const UInt32 Freq = 22050, const Audio::BitConfig Config = Audio::BC_16Bit_Mono);
76  /// @brief Class destructor.
77  virtual ~RawDecoder();
78 
79  ///////////////////////////////////////////////////////////////////////////////
80  // Utility
81 
82  /// @copydoc iDecoder::IsValid()
83  virtual bool IsValid();
84  /// @copydoc iDecoder::GetEncoding() const
85  virtual Audio::Encoding GetEncoding() const;
86  /// @copydoc iDecoder::IsSeekingSupported()
87  virtual bool IsSeekingSupported();
88  /// @copydoc iDecoder::GetBitConfiguration() const
89  virtual Audio::BitConfig GetBitConfiguration() const;
90  /// @copydoc iDecoder::GetFrequency() const
91  virtual UInt32 GetFrequency() const;
92  /// @copydoc iDecoder::GetStream() const
93  virtual Resource::DataStreamPtr GetStream() const;
94 
95  /// @copydoc iDecoder::SetPosition(Int32 Position, bool Relative)
96  virtual bool SetPosition(Int32 Position, bool Relative);
97  /// @copydoc iDecoder::Seek(const Real Seconds, bool Relative)
98  virtual bool Seek(const Real Seconds, bool Relative);
99 
100  /// @copydoc iDecoder::ReadAudioData(void* Output, UInt32 Amount)
101  virtual UInt32 ReadAudioData(void* Output, UInt32 Amount);
102 
103  ///////////////////////////////////////////////////////////////////////////////
104  // Stream Stats
105 
106  /// @copydoc iDecoder::GetTotalTime() const
107  virtual Real GetTotalTime() const;
108  /// @copydoc iDecoder::GetCurrentTime() const
109  virtual Real GetCurrentTime() const;
110  /// @copydoc iDecoder::GetTotalSize() const
111  virtual UInt32 GetTotalSize() const;
112  /// @copydoc iDecoder::GetCompressedSize() const
113  virtual UInt32 GetCompressedSize() const;
114  /// @copydoc iDecoder::GetCurrentPosition() const
115  virtual UInt32 GetCurrentPosition() const;
116  /// @copydoc iDecoder::GetCurrentCompressedPosition() const
117  virtual UInt32 GetCurrentCompressedPosition() const;
118  };//RawDecoder
119  }//Audio
120 }//Mezzanine
121 
122 #endif //ENABLE_RAW_ENCODE
123 
124 #endif