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
|
/*
* Copyright (C) 2003-2013 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.
*/
/*
* This program is a command line interface to MPD's PCM conversion
* library (pcm_convert.c).
*
*/
#include "config.h"
#include "AudioParser.hxx"
#include "AudioFormat.hxx"
#include "pcm/PcmConvert.hxx"
#include "ConfigGlobal.hxx"
#include "util/FifoBuffer.hxx"
#include "util/Error.hxx"
#include "stdbin.h"
#include <glib.h>
#include <assert.h>
#include <stddef.h>
#include <unistd.h>
static void
my_log_func(const gchar *log_domain, gcc_unused GLogLevelFlags log_level,
const gchar *message, gcc_unused gpointer user_data)
{
if (log_domain != NULL)
g_printerr("%s: %s\n", log_domain, message);
else
g_printerr("%s\n", message);
}
const char *
config_get_string(gcc_unused enum ConfigOption option,
const char *default_value)
{
return default_value;
}
int main(int argc, char **argv)
{
AudioFormat in_audio_format, out_audio_format;
const void *output;
if (argc != 3) {
g_printerr("Usage: run_convert IN_FORMAT OUT_FORMAT <IN >OUT\n");
return 1;
}
g_log_set_default_handler(my_log_func, NULL);
Error error;
if (!audio_format_parse(in_audio_format, argv[1],
false, error)) {
g_printerr("Failed to parse audio format: %s\n",
error.GetMessage());
return 1;
}
AudioFormat out_audio_format_mask;
if (!audio_format_parse(out_audio_format_mask, argv[2],
true, error)) {
g_printerr("Failed to parse audio format: %s\n",
error.GetMessage());
return 1;
}
out_audio_format = in_audio_format;
out_audio_format.ApplyMask(out_audio_format_mask);
const size_t in_frame_size = in_audio_format.GetFrameSize();
PcmConvert state;
FifoBuffer<uint8_t, 4096> buffer;
while (true) {
{
const auto dest = buffer.Write();
assert(!dest.IsEmpty());
ssize_t nbytes = read(0, dest.data, dest.size);
if (nbytes <= 0)
break;
buffer.Append(nbytes);
}
auto src = buffer.Read();
assert(!src.IsEmpty());
src.size -= src.size % in_frame_size;
if (src.IsEmpty())
continue;
buffer.Consume(src.size);
size_t length;
output = state.Convert(in_audio_format, src.data, src.size,
out_audio_format, &length, error);
if (output == NULL) {
g_printerr("Failed to convert: %s\n", error.GetMessage());
return 2;
}
gcc_unused ssize_t ignored = write(1, output, length);
}
return EXIT_SUCCESS;
}
|
