# -*- coding: utf-8 -*-
-import threading
-from .music_file import *
-from .mapping import *
+import argparse
+import sys
+import os
+import math
+import sounddevice as sd
+import logging
-draw_lock = threading.RLock()
+class Config:
+ pass
-def parse_config(mapping):
- import yaml
- stream = open("config.yml", "r")
- config = yaml.load(stream)
- stream.close()
+def path():
+ if getattr(sys, 'frozen', False):
+ return sys._MEIPASS + "/"
+ else:
+ path = os.path.dirname(os.path.realpath(__file__))
+ return path + "/../"
- aliases = config['aliases']
- seen_files = {}
+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]
- file_lock = threading.RLock()
+ sys.argv.extend(kivy_args)
- for mapped_key in config['keys']:
- key = mapping.find_by_unicode(mapped_key)
- if key is None:
- continue
+ 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("-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.")
- for action in config['keys'][mapped_key]:
- action_name = list(action)[0]
- action_args = {}
- if action[action_name] is None:
- action[action_name] = []
+ from kivy.logger import Logger
+ Logger.setLevel(logging.ERROR)
- if 'include' in action[action_name]:
- included = action[action_name]['include']
- del(action[action_name]['include'])
+ args = parser.parse_args(argv)
- if isinstance(included, str):
- action[action_name].update(aliases[included], **action[action_name])
- else:
- for included_ in included:
- action[action_name].update(aliases[included_], **action[action_name])
+ Config.yml_file = args.config
- for argument in action[action_name]:
- if argument == 'file':
- filename = action[action_name]['file']
- if filename not in seen_files:
- seen_files[filename] = MusicFile(filename, file_lock)
+ 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
- action_args['music'] = seen_files[filename]
+class DebugModeAction(argparse.Action):
+ def __call__(self, parser, namespace, values, option_string=None):
+ from kivy.logger import Logger
+ Logger.setLevel(logging.DEBUG)
- else:
- action_args[argument] = action[action_name][argument]
+class SelectDeviceAction(argparse.Action):
+ def __call__(self, parser, namespace, values, option_string=None):
+ sd.default.device = values
- key.add_action(action_name, **action_args)
+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):
+ from kivy.logger import Logger
+ Logger.debug('MusicSampler: ' + message)
+
+def error_print(message):
+ from kivy.logger import Logger
+ Logger.error('MusicSampler: ' + message)