# -*- coding: utf-8 -*-
import argparse
import sys
import os
import math
import sounddevice as sd
import logging
Logger = logging.getLogger("kivy")
from . import sysfont
class Config:
pass
def find_font(name, style=sysfont.STYLE_NONE):
if getattr(sys, 'frozen', False):
font = sys._MEIPASS + "/fonts/{}_{}.ttf".format(name, style)
else:
font = sysfont.get_font(name, style=style)
if font is not None:
font = font[4]
return font
def register_fonts():
from kivy.core.text import LabelBase
ubuntu_regular = find_font("Ubuntu", style=sysfont.STYLE_NORMAL)
ubuntu_bold = find_font("Ubuntu", style=sysfont.STYLE_BOLD)
symbola = find_font("Symbola")
if ubuntu_regular is None:
error_print("Font Ubuntu regular could not be found, "
"please install it.", exit=True)
if symbola is None:
error_print("Font Symbola could not be found, please install it.",
exit=True)
if ubuntu_bold is None:
warn_print("Font Ubuntu Bold could not be found.")
LabelBase.register(name="Ubuntu",
fn_regular=ubuntu_regular,
fn_bold=ubuntu_bold)
LabelBase.register(name="Symbola",
fn_regular=symbola)
def path():
if getattr(sys, 'frozen', False):
return sys._MEIPASS + "/"
else:
return os.path.dirname(os.path.realpath(__file__))
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)
os.environ["KIVY_NO_CONFIG"] = 'true'
sys.argv.extend(["-c", "kivy:log_level:warning"])
sys.argv.extend(["-c", "kivy:log_dir:/tmp"])
sys.argv.extend(["-c", "kivy:log_name:/tmp/music_sampler_%_.txt"])
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.")
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):
sys.argv.extend(["-c", "kivy:log_level: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=None):
if with_trace is None:
with_trace = (Logger.getEffectiveLevel() < logging.WARN)
with_trace &= (sys.exc_info()[0] is not None)
Logger.debug('MusicSampler: ' + message, exc_info=with_trace)
def error_print(message, exit=False, with_trace=None):
if with_trace is None:
with_trace = (Logger.getEffectiveLevel() < logging.WARN)
with_trace &= (sys.exc_info()[0] is not None)
# FIXME: handle it correctly when in a thread
if exit:
Logger.critical('MusicSampler: ' + message, exc_info=with_trace)
sys.exit(1)
else:
Logger.error('MusicSampler: ' + message, exc_info=with_trace)
def warn_print(message, with_trace=None):
if with_trace is None:
with_trace = (Logger.getEffectiveLevel() < logging.WARN)
with_trace &= (sys.exc_info()[0] is not None)
Logger.warn('MusicSampler: ' + message, exc_info=with_trace)
