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__author__ = 'Roman Solovyev (ZFTurbo): https://github.com/ZFTurbo/'
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import argparse
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import time
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import librosa
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from tqdm import tqdm
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import sys
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import os
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import glob
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import torch
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import numpy as np
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import soundfile as sf
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import torch.nn as nn
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from utils import demix_track, demix_track_demucs, get_model_from_config
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import warnings
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warnings.filterwarnings("ignore")
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def run_folder(model, args, config, device, verbose=False):
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start_time = time.time()
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model.eval()
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all_mixtures_path = glob.glob(args.input_folder + '/*.*')
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print('Total files found: {}'.format(len(all_mixtures_path)))
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instruments = config.training.instruments
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if config.training.target_instrument is not None:
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instruments = [config.training.target_instrument]
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if not os.path.isdir(args.store_dir):
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os.mkdir(args.store_dir)
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if not verbose:
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all_mixtures_path = tqdm(all_mixtures_path)
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for path in all_mixtures_path:
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if not verbose:
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all_mixtures_path.set_postfix({'track': os.path.basename(path)})
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try:
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mix, sr = librosa.load(path, sr=44100, mono=False)
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mix = mix.T
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except Exception as e:
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print('Can read track: {}'.format(path))
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print('Error message: {}'.format(str(e)))
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continue
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if len(mix.shape) == 1:
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mix = np.stack([mix, mix], axis=-1)
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mixture = torch.tensor(mix.T, dtype=torch.float32)
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if args.model_type == 'htdemucs':
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res = demix_track_demucs(config, model, mixture, device)
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else:
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res = demix_track(config, model, mixture, device)
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for instr in instruments:
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sf.write("{}/{}_{}.wav".format(args.store_dir, os.path.basename(path)[:-4], instr), res[instr].T, sr, subtype='FLOAT')
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if 'vocals' in instruments and args.extract_instrumental:
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instrum_file_name = "{}/{}_{}.wav".format(args.store_dir, os.path.basename(path)[:-4], 'instrumental')
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sf.write(instrum_file_name, mix - res['vocals'].T, sr, subtype='FLOAT')
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time.sleep(1)
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print("Elapsed time: {:.2f} sec".format(time.time() - start_time))
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def proc_folder(args):
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parser = argparse.ArgumentParser()
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parser.add_argument("--model_type", type=str, default='mdx23c', help="One of mdx23c, htdemucs, segm_models, mel_band_roformer, bs_roformer, swin_upernet, bandit")
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parser.add_argument("--config_path", type=str, help="path to config file")
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parser.add_argument("--start_check_point", type=str, default='', help="Initial checkpoint to valid weights")
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parser.add_argument("--input_folder", type=str, help="folder with mixtures to process")
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parser.add_argument("--store_dir", default="", type=str, help="path to store results as wav file")
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parser.add_argument("--device_ids", nargs='+', type=int, default=0, help='list of gpu ids')
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parser.add_argument("--extract_instrumental", action='store_true', help="invert vocals to get instrumental if provided")
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if args is None:
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args = parser.parse_args()
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else:
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args = parser.parse_args(args)
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torch.backends.cudnn.benchmark = True
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model, config = get_model_from_config(args.model_type, args.config_path)
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if args.start_check_point != '':
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print('Start from checkpoint: {}'.format(args.start_check_point))
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state_dict = torch.load(args.start_check_point)
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if args.model_type == 'htdemucs':
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if 'state' in state_dict:
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state_dict = state_dict['state']
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model.load_state_dict(state_dict)
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print("Instruments: {}".format(config.training.instruments))
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if torch.cuda.is_available():
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device_ids = args.device_ids
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if type(device_ids)==int:
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device = torch.device(f'cuda:{device_ids}')
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model = model.to(device)
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else:
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device = torch.device(f'cuda:{device_ids[0]}')
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model = nn.DataParallel(model, device_ids=device_ids).to(device)
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else:
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device = 'cpu'
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print('CUDA is not avilable. Run inference on CPU. It will be very slow...')
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model = model.to(device)
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run_folder(model, args, config, device, verbose=False)
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if __name__ == "__main__":
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proc_folder(None)
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