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
|
/*
* Copyright (C) 2022 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2022 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-dsp-units
* Created on: 30 окт. 2022 г.
*
* lsp-dsp-units is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-dsp-units 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-dsp-units. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_DSP_UNITS_SAMPLING_INSAMPLESTREAM_H_
#define LSP_PLUG_IN_DSP_UNITS_SAMPLING_INSAMPLESTREAM_H_
#include <lsp-plug.in/dsp-units/version.h>
#include <lsp-plug.in/dsp-units/sampling/Sample.h>
#include <lsp-plug.in/mm/IInAudioStream.h>
namespace lsp
{
namespace dspu
{
/**
* Input audio stream that allows to wrap a sample and perform streaming reads from it.
*/
class InSampleStream: public mm::IInAudioStream
{
private:
InSampleStream(const InSampleStream &);
InSampleStream & operator = (const InSampleStream &);
protected:
const Sample *pSample;
bool bDelete;
protected:
void do_close();
protected:
virtual ssize_t direct_read(void *dst, size_t nframes, size_t fmt) override;
virtual size_t select_format(size_t fmt) override;
public:
InSampleStream();
InSampleStream(const Sample *s, bool drop = false);
virtual ~InSampleStream() override;
public:
status_t wrap(const dspu::Sample *s, bool drop = false);
public:
virtual status_t info(mm::audio_stream_t *dst) const override;
virtual size_t sample_rate() const override;
virtual size_t channels() const override;
virtual wssize_t length() const override;
virtual size_t format() const override;
virtual status_t close() override;
virtual wssize_t skip(wsize_t nframes) override;
virtual wssize_t seek(wsize_t nframes) override;
};
} /* namespace dspu */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_DSP_UNITS_SAMPLING_INSAMPLESTREAM_H_ */
|
