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
|
/*
* Copyright (C) 2003-2014 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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 2 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_PCM_LIBSAMPLERATE_RESAMPLER_HXX
#define MPD_PCM_LIBSAMPLERATE_RESAMPLER_HXX
#include "Resampler.hxx"
#include "PcmBuffer.hxx"
#include "AudioFormat.hxx"
#include "Compiler.h"
#include <samplerate.h>
/**
* A resampler using libsamplerate.
*/
class LibsampleratePcmResampler final : public PcmResampler {
unsigned src_rate, dest_rate;
unsigned channels;
SRC_STATE *state;
SRC_DATA data;
PcmBuffer buffer;
public:
virtual AudioFormat Open(AudioFormat &af, unsigned new_sample_rate,
Error &error) override;
virtual void Close() override;
virtual ConstBuffer<void> Resample(ConstBuffer<void> src,
Error &error) override;
private:
ConstBuffer<float> Resample2(ConstBuffer<float> src, Error &error);
};
bool
pcm_resample_lsr_global_init(const char *converter, Error &error);
#endif
|
