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
|
/*
* Copyright (C) 2018-2020 Stefan Westerfeld
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef AUDIOWMARK_RAW_INPUT_STREAM_HH
#define AUDIOWMARK_RAW_INPUT_STREAM_HH
#include <string>
#include <memory>
#include <sndfile.h>
#include "audiostream.hh"
class RawFormat
{
public:
enum Endian {
LITTLE,
BIG
};
private:
int m_n_channels = 2;
int m_sample_rate = 0;
int m_bit_depth = 16;
Endian m_endian = LITTLE;
Encoding m_encoding = Encoding::SIGNED;
public:
RawFormat();
RawFormat (int n_channels, int sample_rate, int bit_depth);
int n_channels() const { return m_n_channels; }
int sample_rate() const { return m_sample_rate; }
int bit_depth() const { return m_bit_depth; }
Endian endian() const { return m_endian; }
Encoding encoding() const { return m_encoding; }
void set_channels (int channels);
void set_sample_rate (int rate);
void set_bit_depth (int bits);
void set_endian (Endian endian);
void set_encoding (Encoding encoding);
};
class RawConverter;
class RawInputStream : public AudioInputStream
{
enum class State {
NEW,
OPEN,
CLOSED
};
State m_state = State::NEW;
RawFormat m_format;
FILE *m_input_file = nullptr;
bool m_close_file = false;
std::unique_ptr<RawConverter> m_raw_converter;
public:
~RawInputStream();
Error open (const std::string& filename, const RawFormat& format);
Error read_frames (std::vector<float>& samples, size_t count) override;
void close();
int bit_depth() const override;
int sample_rate() const override;
size_t n_frames() const override;
int n_channels() const override;
Encoding encoding() const override;
};
#endif /* AUDIOWMARK_RAW_INPUT_STREAM_HH */
|
