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
|
# -*- coding: utf-8 -*-
import argparse
import sys
import os
import math
import sounddevice as sd
import logging
class Config:
pass
def path():
if getattr(sys, 'frozen', False):
return sys._MEIPASS + "/"
else:
path = os.path.dirname(os.path.realpath(__file__))
return path + "/../"
def parse_args():
argv = sys.argv[1 :]
sys.argv = sys.argv[: 1]
if "--" in argv:
index = argv.index("--")
kivy_args = argv[index+1 :]
argv = argv[: index]
sys.argv.extend(kivy_args)
parser = argparse.ArgumentParser(
description="A Music Sampler application.",
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument("-c", "--config",
default="config.yml",
required=False,
help="Config file to load")
parser.add_argument("-p", "--music-path",
default=".",
required=False,
help="Folder in which to find the music files")
parser.add_argument("-d", "--debug",
nargs=0,
action=DebugModeAction,
help="Print messages in console")
parser.add_argument("-m", "--builtin-mixing",
action="store_true",
help="Make the mixing of sounds manually\
(do it if the system cannot handle it correctly)")
parser.add_argument("-l", "--latency",
default="high",
required=False,
help="Latency: low, high or number of seconds")
parser.add_argument("-b", "--blocksize",
default=0,
type=int,
required=False,
help="Blocksize: If not 0, the number of frames to take\
at each step for the mixer")
parser.add_argument("-f", "--frame-rate",
default=44100,
type=int,
required=False,
help="Frame rate to play the musics")
parser.add_argument("-x", "--channels",
default=2,
type=int,
required=False,
help="Number of channels to use")
parser.add_argument("-s", "--sample-width",
default=2,
type=int,
required=False,
help="Sample width (number of bytes for each frame)")
parser.add_argument("-V", "--version",
action="version",
help="Displays the current version and exits. Only use\
in bundled package",
version=show_version())
parser.add_argument("--device",
action=SelectDeviceAction,
help="Select this sound device"
)
parser.add_argument("--list-devices",
nargs=0,
action=ListDevicesAction,
help="List available sound devices"
)
parser.add_argument('--',
dest="args",
help="Kivy arguments. All arguments after this are interpreted\
by Kivy. Pass \"-- --help\" to get Kivy's usage.")
from kivy.logger import Logger
Logger.setLevel(logging.WARN)
args = parser.parse_args(argv)
Config.yml_file = args.config
Config.latency = args.latency
Config.blocksize = args.blocksize
Config.frame_rate = args.frame_rate
Config.channels = args.channels
Config.sample_width = args.sample_width
Config.builtin_mixing = args.builtin_mixing
if args.music_path.endswith("/"):
Config.music_path = args.music_path
else:
Config.music_path = args.music_path + "/"
class DebugModeAction(argparse.Action):
def __call__(self, parser, namespace, values, option_string=None):
from kivy.logger import Logger
Logger.setLevel(logging.DEBUG)
class SelectDeviceAction(argparse.Action):
def __call__(self, parser, namespace, values, option_string=None):
sd.default.device = values
class ListDevicesAction(argparse.Action):
nargs = 0
def __call__(self, parser, namespace, values, option_string=None):
print(sd.query_devices())
sys.exit()
def show_version():
if getattr(sys, 'frozen', False):
with open(path() + ".pyinstaller_commit", "r") as f:
return f.read()
else:
return "option '-v' can only be used in bundled package"
def duration_to_min_sec(duration):
minutes = int(duration / 60)
seconds = int(duration) % 60
if minutes < 100:
return "{:2}:{:0>2}".format(minutes, seconds)
else:
return "{}:{:0>2}".format(minutes, seconds)
def gain(volume, old_volume=None):
if old_volume is None:
return 20 * math.log10(max(volume, 0.1) / 100)
else:
return [
20 * math.log10(max(volume, 0.1) / max(old_volume, 0.1)),
max(volume, 0)]
def debug_print(message, with_trace=False):
from kivy.logger import Logger
Logger.debug('MusicSampler: ' + message, exc_info=with_trace)
def error_print(message, with_trace=False):
from kivy.logger import Logger
Logger.error('MusicSampler: ' + message, exc_info=with_trace)
def warn_print(message, with_trace=False):
from kivy.logger import Logger
Logger.warn('MusicSampler: ' + message, exc_info=with_trace)
|
