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
|
/*
Copyright (c) 2005-2009, John Hurst
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*! \file Wav.h
\version $Id: Wav.h,v 1.5 2009/04/09 19:24:14 msheby Exp $
\brief Wave file common elements
*/
#ifndef _WAV_H_
#define _WAV_H_
#include <KM_fileio.h>
#include <AS_DCP.h>
namespace ASDCP
{
//
class fourcc
{
private:
byte_t data[4];
public:
inline fourcc() { memset( data, 0, 4 ); }
inline fourcc( const char* v ) { memcpy( this->data, v, 4 ); }
inline fourcc( const byte_t* v ) { memcpy( this->data, v, 4 ); }
inline fourcc& operator=(const fourcc & s) { memcpy( this->data, s.data, 4); return *this; }
inline bool operator==(const fourcc &rhs) { return memcmp(data, rhs.data, 4) == 0 ? true : false; }
inline bool operator!=(const fourcc &rhs) { return memcmp(data, rhs.data, 4) != 0 ? true : false; }
};
namespace AIFF
{
const fourcc FCC_FORM("FORM");
const fourcc FCC_AIFF("AIFF");
const fourcc FCC_COMM("COMM");
const fourcc FCC_SSND("SSND");
class SimpleAIFFHeader
{
public:
ui16_t numChannels;
ui32_t numSampleFrames;
ui16_t sampleSize;
byte_t sampleRate[10]; // 80-bit IEEE 754 float
ui32_t data_len;
SimpleAIFFHeader() :
numChannels(0), numSampleFrames(0), sampleSize(0), data_len(0) {
memset(sampleRate, 0, 10);
}
Result_t ReadFromBuffer(const byte_t* buf, ui32_t buf_len, ui32_t* data_start);
Result_t ReadFromFile(const Kumu::FileReader& InFile, ui32_t* data_start);
void FillADesc(ASDCP::PCM::AudioDescriptor& ADesc, Rational PictureRate) const;
};
} // namespace AIFF
namespace Wav
{
const ui32_t MaxWavHeader = 1024*32; // must find "data" within this space or no happy
const fourcc FCC_RIFF("RIFF");
const fourcc FCC_WAVE("WAVE");
const fourcc FCC_fmt_("fmt ");
const fourcc FCC_data("data");
const ui16_t WAVE_FORMAT_PCM = 1;
const ui16_t WAVE_FORMAT_EXTENSIBLE = 65534;
//
class SimpleWaveHeader
{
public:
ui16_t format;
ui16_t nchannels;
ui32_t samplespersec;
ui32_t avgbps;
ui16_t blockalign;
ui16_t bitspersample;
ui16_t cbsize;
ui32_t data_len;
SimpleWaveHeader() :
format(0), nchannels(0), samplespersec(0), avgbps(0),
blockalign(0), bitspersample(0), cbsize(0), data_len(0) {}
SimpleWaveHeader(ASDCP::PCM::AudioDescriptor& ADesc);
Result_t ReadFromBuffer(const byte_t* buf, ui32_t buf_len, ui32_t* data_start);
Result_t ReadFromFile(const Kumu::FileReader& InFile, ui32_t* data_start);
Result_t WriteToFile(Kumu::FileWriter& OutFile) const;
void FillADesc(ASDCP::PCM::AudioDescriptor& ADesc, Rational PictureRate) const;
};
} // namespace Wav
} // namespace ASDCP
#endif // _WAV_H_
//
// end Wav.h
//
|
