🐛 🎨 WIP: typer integration

spleeter/__main__.py

@@ -1,58 +1,174 @@
 #!/usr/bin/env python
 # coding: utf8
 
+""" TO DOCUMENT """
+
+from pathlib import Path
+from os.path import join
+from spleeter.separator import STFTBackend
+from tempfile import gettempdir
+from typing import List
+
+from .audio import Codec
+from .audio.adapter import AudioAdapter
+from .separator import Separator
+
+# pyright: reportMissingImports=false
+# pylint: disable=import-error
+from typer import Argument, Option, Typer
+from typer.models import OptionInfo
+# pylint: enable=import-error
+
+spleeter: Typer = Typer()
+""" """
+
+AudioOutput: OptionInfo = Option(
+    join(gettempdir(), 'separated_audio'),
+    help='Path of the output directory to write audio files in')
+
+AudioSTFTBackend: OptionInfo = Option(
+    STFTBackend.AUTO,
+    '--stft-backend',
+    '-B',
+    case_sensitive=False,
+    help=(
+        'Who should be in charge of computing the stfts. Librosa is faster '
+        'than tensorflow on CPU and uses  less memory. "auto" will use '
+        'tensorflow when GPU acceleration is available and librosa when not'))
+
+AudioAdapterDescriptor: OptionInfo = Option(
+    'spleeter.audio.ffmpeg.FFMPEGProcessAudioAdapter',
+    help='Name of the audio adapter to use for audio I/O')
+
+MWF: OptionInfo = Option(
+    False,
+    '--mwf',
+    help='Whether to use multichannel Wiener filtering for separation')
+
+ModelParameters: OptionInfo = Option(
+    'spleeter:2stems',
+    help='JSON filename that contains params')
+
+Verbose: OptionInfo = Option(
+    False,
+    '--verbose',
+    help='Enable verbose logs')
+
+
+@spleeter.command()
+def train(
+        adapter=None,
+        verbose: bool = Verbose,
+        params_filename: str = ModelParameters,
+        data: Path = Option(
+            ...,
+            exists=True,
+            dir_okay=True,
+            file_okay=False,
+            readable=True,
+            resolve_path=True,
+            help='Path of the folder containing audio data for training')
+        ) -> None:
     """
-    Python oneliner script usage.
+        Train a source separation model
-
-    USAGE: python -m spleeter {train,evaluate,separate} ...
     """
-
+    pass
-import sys
-import warnings
-
-from . import SpleeterError
-from .commands import create_argument_parser
-from .utils.configuration import load_configuration
-from .utils.logging import (
-    enable_logging,
-    enable_tensorflow_logging,
-    get_logger)
-
-__email__ = 'spleeter@deezer.com'
-__author__ = 'Deezer Research'
-__license__ = 'MIT License'
 
 
-def main(argv):
+@spleeter.command()
-    """ Spleeter runner. Parse provided command line arguments
+def evaluate(
-    and run entrypoint for required command (either train,
+        adapter: str = AudioAdapterDescriptor,
-    evaluate or separate).
+        output_path: Path = AudioOutput,
-
+        stft_backend: STFTBackend = AudioSTFTBackend,
-    :param argv: Provided command line arguments.
+        params_filename: str = ModelParameters,
+        mwf: bool = MWF,
+        verbose: bool = Verbose,
+        mus_dir: Path = Option(
+            ...,
+            '--mus_dir',
+            exists=True,
+            dir_okay=True,
+            file_okay=False,
+            readable=True,
+            resolve_path=True,
+            help='Path to musDB dataset directory')
+        ) -> None:
     """
-    try:
+        Evaluate a model on the musDB test dataset
-        parser = create_argument_parser()
+    """
-        arguments = parser.parse_args(argv[1:])
+    pass
-        enable_logging()
-        if arguments.verbose:
-            enable_tensorflow_logging()
-        if arguments.command == 'separate':
-            from .commands.separate import entrypoint
-        elif arguments.command == 'train':
-            from .commands.train import entrypoint
-        elif arguments.command == 'evaluate':
-            from .commands.evaluate import entrypoint
-        params = load_configuration(arguments.configuration)
-        entrypoint(arguments, params)
-    except SpleeterError as e:
-        get_logger().error(e)
 
 
-def entrypoint():
+@spleeter.commmand()
-    """ Command line entrypoint. """
+def separate(
-    warnings.filterwarnings('ignore')
+        adapter: str = AudioAdapterDescriptor,
-    main(sys.argv)
+        output_path: Path = AudioOutput,
+        stft_backend: STFTBackend = AudioSTFTBackend,
+        params_filename: str = ModelParameters,
+        mwf: bool = MWF,
+        verbose: bool = Verbose,
+        files: List[Path] = Argument(
+            ...,
+            help='List of input audio file path',
+            exists=True,
+            file_okay=True,
+            dir_okay=False,
+            readable=True,
+            resolve_path=True),
+        filename_format: str = Option(
+            '{filename}/{instrument}.{codec}',
+            help=(
+                'Template string that will be formatted to generated'
+                'output filename. Such template should be Python formattable'
+                'string, and could use {filename}, {instrument}, and {codec}'
+                'variables')),
+        duration: float = Option(
+            600.,
+            help=(
+                'Set a maximum duration for processing audio '
+                '(only separate offset + duration first seconds of '
+                'the input file)')),
+        offset: float = Option(
+            0.,
+            '--offset',
+            '-s',
+            help='Set the starting offset to separate audio from'),
+        codec: Codec = Option(
+            Codec.WAV,
+            help='Audio codec to be used for the separated output'),
+        bitrate: str = Option(
+            '128k',
+            help='Audio bitrate to be used for the separated output')
+        ) -> None:
+    """
+        Separate audio file(s)
+    """
+    # TODO: try / catch or custom decorator for function handling.
+    # TODO: enable_logging()
+    # TODO: handle MWF
+    if verbose:
+        # TODO: enable_tensorflow_logging()
+        pass
+    # PREV: params = load_configuration(arguments.configuration)
+    audio_adapter: AudioAdapter = AudioAdapter.get(adapter)
+    separator: Separator = Separator(
+        params_filename,
+        MWF=MWF,
+        stft_backend=stft_backend)
+    for filename in files:
+        separator.separate_to_file(
+            filename,
+            output_path,
+            audio_adapter=audio_adapter,
+            offset=offset,
+            duration=duration,
+            codec=codec,
+            bitrate=bitrate,
+            filename_format=filename_format,
+            synchronous=False)
+    separator.join()
 
 
 if __name__ == '__main__':
-    entrypoint()
+    # TODO: warnings.filterwarnings('ignore')
+    spleeter()

spleeter/audio/__init__.py

@@ -26,3 +26,11 @@ class Codec(str, Enum):
     M4A: str = 'm4a'
     WMA: str = 'wma'
     FLAC: str = 'flac'
+
+
+class STFTBackend(str, Enum):
+    """ Enumeration of supported STFT backend. """
+
+    AUTO: str = 'auto'
+    TENSORFLOW: str = 'tensorflow'
+    LIBROSA: str = 'librosa'

spleeter/commands/__init__.py

@@ -3,61 +3,41 @@
 
 """ This modules provides spleeter command as well as CLI parsing methods. """
 
-import json
-import logging
-from argparse import ArgumentParser
 from tempfile import gettempdir
-from os.path import exists, join
+from os.path import join
+
+from ..separator import STFTBackend
+from ..audio import Codec
+
+from typer import Argument, Option
+from typer.models import ArgumentInfo, OptionInfo
 
 __email__ = 'spleeter@deezer.com'
 __author__ = 'Deezer Research'
 __license__ = 'MIT License'
 
+AudioInput: ArgumentInfo = Argument(
+    ...,
+    help='List of input audio file path',
+    exists=True,
+    file_okay=True,
+    dir_okay=False,
+    readable=True,
+    resolve_path=True)
 
+AudioOutput: OptionInfo = Option(
+    join(gettempdir(), 'separated_audio'),
+    '--output_path',
+    '-o',
+    help='Path of the output directory to write audio files in')
 
-# -i opt specification (separate).
+AudioOffset: OptionInfo = Option(
-OPT_INPUT = {
-    'dest': 'inputs',
-    'nargs': '+',
-    'help': 'List of input audio filenames',
-    'required': True
-}
-
-# -o opt specification (evaluate and separate).
-OPT_OUTPUT = {
-    'dest': 'output_path',
-    'default': join(gettempdir(), 'separated_audio'),
-    'help': 'Path of the output directory to write audio files in'
-}
-
-# -f opt specification (separate).
-OPT_FORMAT = {
-    'dest': 'filename_format',
-    'default': '{filename}/{instrument}.{codec}',
-    'help': (
-        'Template string that will be formatted to generated'
-        'output filename. Such template should be Python formattable'
-        'string, and could use {filename}, {instrument}, and {codec}'
-        'variables.'
-    )
-}
-
-# -p opt specification (train, evaluate and separate).
-OPT_PARAMS = {
-    'dest': 'configuration',
-    'default': 'spleeter:2stems',
-    'type': str,
-    'action': 'store',
-    'help': 'JSON filename that contains params'
-}
-
-Offset: OptionInfo = Option(
     0.,
     '--offset',
     '-s',
     help='Set the starting offset to separate audio from')
 
-Duration: OptionInfo = Option(
+AudioDuration: OptionInfo = Option(
     600.,
     '--duration',
     '-d',
@@ -66,16 +46,25 @@ Duration: OptionInfo = Option(
         '(only separate offset + duration first seconds of '
         'the input file)'))
 
+FilenameFormat: OptionInfo = Option(
+    '{filename}/{instrument}.{codec}',
+    '--filename_format',
+    '-f',
+    help=(
+        'Template string that will be formatted to generated'
+        'output filename. Such template should be Python formattable'
+        'string, and could use {filename}, {instrument}, and {codec}'
+        'variables'))
 
-class STFTBackendEnum(Enum, str):
+ModelParameters: OptionInfo = Option(
-
+    'spleeter:2stems',
-    AUTO: str
+    '--params_filename',
-    TENSORFLOW: str
+    '-p',
-    LIBROSA: str
+    help='JSON filename that contains params')
 
 
-STFTBackend: OptionInfo = Option(
+AudioSTFTBackend: OptionInfo = Option(
-    STFTBackendEnum.AUTO,
+    STFTBackend.AUTO,
     '--stft-backend',
     '-B',
     case_sensitive=False,
@@ -84,67 +73,54 @@ STFTBackend: OptionInfo = Option(
         'than tensorflow on CPU and uses  less memory. "auto" will use '
         'tensorflow when GPU acceleration is available and librosa when not'))
 
+AudioCodec: OptionInfo = Option(
+    Codec.WAV,
+    '--codec',
+    '-c',
+    help='Audio codec to be used for the separated output')
 
-# -c opt specification (separate).
+AudioBitrate: OptionInfo = Option(
-OPT_CODEC = {
+    '128k',
-    'dest': 'codec',
+    '--bitrate',
-    'choices': ('wav', 'mp3', 'ogg', 'm4a', 'wma', 'flac'),
+    '-b',
-    'default': 'wav',
+    help='Audio bitrate to be used for the separated output')
-    'help': 'Audio codec to be used for the separated output'
-}
 
-# -b opt specification (separate).
+MWF: OptionInfo = Option(
-OPT_BITRATE = {
+    False,
-    'dest': 'bitrate',
+    '--mwf',
-    'default': '128k',
+    help='Whether to use multichannel Wiener filtering for separation')
-    'help': 'Audio bitrate to be used for the separated output'
-}
-
-# -m opt specification (evaluate and separate).
-OPT_MWF = {
-    'dest': 'MWF',
-    'action': 'store_const',
-    'const': True,
-    'default': False,
-    'help': 'Whether to use multichannel Wiener filtering for separation',
-}
-
-# --mus_dir opt specification (evaluate).
-OPT_MUSDB = {
-    'dest': 'mus_dir',
-    'type': str,
-    'required': True,
-    'help': 'Path to folder with musDB'
-}
-
-# -d opt specification (train).
-OPT_DATA = {
-    'dest': 'audio_path',
-    'type': str,
-    'required': True,
-    'help': 'Path of the folder containing audio data for training'
-}
-
-# -a opt specification (train, evaluate and separate).
-OPT_ADAPTER = {
-    'dest': 'audio_adapter',
-    'type': str,
-    'help': 'Name of the audio adapter to use for audio I/O'
-}
 
+MUSDBDirectory: OptionInfo = Option(
+    ...,
+    '--mus_dir',
+    exists=True,
+    dir_okay=True,
+    file_okay=False,
+    readable=True,
+    resolve_path=True,
+    help='Path to musDB dataset directory')
 
+TrainingDataDirectory: OptionInfo = Option(
+    ...,
+    '--data',
+    '-d',
+    exists=True,
+    dir_okay=True,
+    file_okay=False,
+    readable=True,
+    resolve_path=True,
+    help='Path of the folder containing audio data for training')
 
 AudioAdapter: OptionInfo = Option(
     'spleeter.audio.ffmpeg.FFMPEGProcessAudioAdapter',
     '--adapter',
+    '-a',
     help='Name of the audio adapter to use for audio I/O')
 
-
+Verbose: OptionInfo = Option(
-# -a opt specification (train, evaluate and separate).
+    False,
-OPT_VERBOSE = {
+    '--verbose',
-    'action': 'store_true',
+    help='Enable verbose logs')
-    'help': 'Shows verbose logs'
-}
 
 
 def _add_common_options(parser):

spleeter/separator.py

@@ -16,6 +16,8 @@ import atexit
 import os
 import logging
 
+from enum import Enum
+
 from multiprocessing import Pool
 from os.path import basename, join, splitext, dirname
 from time import time