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
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* Copyright 2003-2021 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.
*/
#include "ConfiguredResampler.hxx"
#include "FallbackResampler.hxx"
#include "config/Data.hxx"
#include "config/Option.hxx"
#include "config/Block.hxx"
#include "config/Param.hxx"
#include "util/RuntimeError.hxx"
#include "config.h"
#ifdef ENABLE_LIBSAMPLERATE
#include "LibsamplerateResampler.hxx"
#endif
#ifdef ENABLE_SOXR
#include "SoxrResampler.hxx"
#endif
#include <cassert>
#include <string.h>
enum class SelectedResampler {
FALLBACK,
#ifdef ENABLE_LIBSAMPLERATE
LIBSAMPLERATE,
#endif
#ifdef ENABLE_SOXR
SOXR,
#endif
};
static SelectedResampler selected_resampler = SelectedResampler::FALLBACK;
static const ConfigBlock *
MakeResamplerDefaultConfig(ConfigBlock &block) noexcept
{
assert(block.IsEmpty());
#ifdef ENABLE_LIBSAMPLERATE
block.AddBlockParam("plugin", "libsamplerate");
#elif defined(ENABLE_SOXR)
block.AddBlockParam("plugin", "soxr");
#else
block.AddBlockParam("plugin", "internal");
#endif
return █
}
/**
* Convert the old "samplerate_converter" setting to a new-style
* "resampler" block.
*/
static const ConfigBlock *
MigrateResamplerConfig(const ConfigParam ¶m, ConfigBlock &block) noexcept
{
assert(block.IsEmpty());
block.line = param.line;
const char *converter = param.value.c_str();
if (*converter == 0 || strcmp(converter, "internal") == 0) {
block.AddBlockParam("plugin", "internal");
return █
}
#ifdef ENABLE_SOXR
if (strcmp(converter, "soxr") == 0) {
block.AddBlockParam("plugin", "soxr");
return █
}
if (memcmp(converter, "soxr ", 5) == 0) {
block.AddBlockParam("plugin", "soxr");
block.AddBlockParam("quality", converter + 5);
return █
}
#endif
block.AddBlockParam("plugin", "libsamplerate");
block.AddBlockParam("type", converter);
return █
}
static const ConfigBlock *
MigrateResamplerConfig(const ConfigParam *param, ConfigBlock &buffer) noexcept
{
assert(buffer.IsEmpty());
return param == nullptr
? MakeResamplerDefaultConfig(buffer)
: MigrateResamplerConfig(*param, buffer);
}
static const ConfigBlock *
GetResamplerConfig(const ConfigData &config, ConfigBlock &buffer)
{
const auto *old_param =
config.GetParam(ConfigOption::SAMPLERATE_CONVERTER);
const auto *block = config.GetBlock(ConfigBlockOption::RESAMPLER);
if (block == nullptr)
return MigrateResamplerConfig(old_param, buffer);
if (old_param != nullptr)
throw FormatRuntimeError("Cannot use both 'resampler' (line %d) and 'samplerate_converter' (line %d)",
block->line, old_param->line);
block->SetUsed();
return block;
}
void
pcm_resampler_global_init(const ConfigData &config)
{
ConfigBlock buffer;
const auto *block = GetResamplerConfig(config, buffer);
const char *plugin_name = block->GetBlockValue("plugin");
if (plugin_name == nullptr)
throw FormatRuntimeError("'plugin' missing in line %d",
block->line);
if (strcmp(plugin_name, "internal") == 0) {
selected_resampler = SelectedResampler::FALLBACK;
#ifdef ENABLE_SOXR
} else if (strcmp(plugin_name, "soxr") == 0) {
selected_resampler = SelectedResampler::SOXR;
pcm_resample_soxr_global_init(*block);
#endif
#ifdef ENABLE_LIBSAMPLERATE
} else if (strcmp(plugin_name, "libsamplerate") == 0) {
selected_resampler = SelectedResampler::LIBSAMPLERATE;
pcm_resample_lsr_global_init(*block);
#endif
} else {
throw FormatRuntimeError("No such resampler plugin: %s",
plugin_name);
}
}
PcmResampler *
pcm_resampler_create()
{
switch (selected_resampler) {
case SelectedResampler::FALLBACK:
return new FallbackPcmResampler();
#ifdef ENABLE_LIBSAMPLERATE
case SelectedResampler::LIBSAMPLERATE:
return new LibsampleratePcmResampler();
#endif
#ifdef ENABLE_SOXR
case SelectedResampler::SOXR:
return new SoxrPcmResampler();
#endif
}
gcc_unreachable();
}
|
