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| import os | |
| import gradio as gr | |
| from scipy.io.wavfile import write | |
| import subprocess | |
| import argparse | |
| from concurrent.futures import ProcessPoolExecutor | |
| import time | |
| import typing as tp | |
| import warnings | |
| from pathlib import Path | |
| import torch | |
| import gradio as gr | |
| from audiocraft.data.audio_utils import convert_audio | |
| from audiocraft.data.audio import audio_write | |
| from audiocraft.models import MusicGen | |
| MODEL = None # Last used model | |
| IS_BATCHED = "facebook/MusicGen" in os.environ.get('SPACE_ID', '') | |
| MAX_BATCH_SIZE = 6 | |
| BATCHED_DURATION = 15 | |
| INTERRUPTING = False | |
| def interrupt(): | |
| global INTERRUPTING | |
| INTERRUPTING = True | |
| class FileCleaner: | |
| def __init__(self, file_lifetime: float = 3600): | |
| self.file_lifetime = file_lifetime | |
| self.files = [] | |
| def add(self, path: tp.Union[str, Path]): | |
| self._cleanup() | |
| self.files.append((time.time(), Path(path))) | |
| def _cleanup(self): | |
| now = time.time() | |
| for time_added, path in list(self.files): | |
| if now - time_added > self.file_lifetime: | |
| if path.exists(): | |
| path.unlink() | |
| self.files.pop(0) | |
| else: | |
| break | |
| file_cleaner = FileCleaner() | |
| def make_waveform(*args, **kwargs): | |
| be = time.time() | |
| with warnings.catch_warnings(): | |
| warnings.simplefilter('ignore') | |
| out = gr.make_waveform(*args, **kwargs) | |
| print("Make a video took", time.time() - be) | |
| return out | |
| def load_model(version='melody'): | |
| global MODEL | |
| print("Loading model", version) | |
| if MODEL is None or MODEL.name != version: | |
| MODEL = MusicGen.get_pretrained(version) | |
| def _do_predictions(texts, melodies, duration, progress=False, **gen_kwargs): | |
| MODEL.set_generation_params(duration=duration, **gen_kwargs) | |
| print("new batch", len(texts), texts, [None if m is None else (m[0], m[1].shape) for m in melodies]) | |
| be = time.time() | |
| processed_melodies = [] | |
| target_sr = 32000 | |
| target_ac = 1 | |
| for melody in melodies: | |
| if melody is None: | |
| processed_melodies.append(None) | |
| else: | |
| sr, melody = melody[0], torch.from_numpy(melody[1]).to(MODEL.device).float().t() | |
| if melody.dim() == 1: | |
| melody = melody[None] | |
| melody = melody[..., :int(sr * duration)] | |
| melody = convert_audio(melody, sr, target_sr, target_ac) | |
| processed_melodies.append(melody) | |
| if any(m is not None for m in processed_melodies): | |
| outputs = MODEL.generate_with_chroma( | |
| descriptions=texts, | |
| melody_wavs=processed_melodies, | |
| melody_sample_rate=target_sr, | |
| progress=progress, | |
| ) | |
| else: | |
| outputs = MODEL.generate(texts, progress=progress) | |
| outputs = outputs.detach().cpu().float() | |
| out_files = [] | |
| for output in outputs: | |
| with NamedTemporaryFile("wb", suffix=".wav", delete=False) as file: | |
| audio_write( | |
| file.name, output, MODEL.sample_rate, strategy="loudness", | |
| loudness_headroom_db=16, loudness_compressor=True, add_suffix=False) | |
| out_files.append(pool.submit(make_waveform, file.name)) | |
| file_cleaner.add(file.name) | |
| res = [out_file.result() for out_file in out_files] | |
| for file in res: | |
| file_cleaner.add(file) | |
| print("batch finished", len(texts), time.time() - be) | |
| print("Tempfiles currently stored: ", len(file_cleaner.files)) | |
| return res | |
| def predict_batched(texts, melodies): | |
| max_text_length = 512 | |
| texts = [text[:max_text_length] for text in texts] | |
| load_model('melody') | |
| res = _do_predictions(texts, melodies, BATCHED_DURATION) | |
| return [res] | |
| def predict_full(model, text, melody, duration, topk, topp, temperature, cfg_coef, progress=gr.Progress()): | |
| global INTERRUPTING | |
| INTERRUPTING = False | |
| if temperature < 0: | |
| raise gr.Error("Temperature must be >= 0.") | |
| if topk < 0: | |
| raise gr.Error("Topk must be non-negative.") | |
| if topp < 0: | |
| raise gr.Error("Topp must be non-negative.") | |
| topk = int(topk) | |
| load_model(model) | |
| def _progress(generated, to_generate): | |
| progress((generated, to_generate)) | |
| if INTERRUPTING: | |
| raise gr.Error("Interrupted.") | |
| MODEL.set_custom_progress_callback(_progress) | |
| outs = _do_predictions( | |
| [text], [melody], duration, progress=True, | |
| top_k=topk, top_p=topp, temperature=temperature, cfg_coef=cfg_coef) | |
| return outs[0] | |
| def toggle_audio_src(choice): | |
| if choice == "mic": | |
| return gr.update(source="microphone", value=None, label="Microphone") | |
| else: | |
| return gr.update(source="upload", value=None, label="File") | |
| def ui_full(launch_kwargs): | |
| with gr.Blocks() as interface: | |
| gr.Markdown( | |
| """ | |
| # MusicGen and Demucs Combination | |
| This is a combined demo of MusicGen and Demucs. | |
| MusicGen is a model for music generation based on text prompts, | |
| and Demucs is a model for music source separation. | |
| """ | |
| ) | |
| with gr.Row(): | |
| with gr.Column(): | |
| with gr.Row(): | |
| text = gr.Text(label="Input Text", interactive=True) | |
| with gr.Column(): | |
| radio = gr.Radio(["file", "mic"], value="file", | |
| label="Condition on a Melody (optional) File or Mic") | |
| melody = gr.Audio(source="upload", type="numpy", label="Melody File", | |
| interactive=True, elem_id="melody-input") | |
| with gr.Row(): | |
| submit = gr.Button("Generate Music") | |
| with gr.Row(): | |
| audio_output = gr.Audio(type="numpy", label="Generated Music") | |
| vocals_output = gr.Audio(type="filepath", label="Vocals") | |
| bass_output = gr.Audio(type="filepath", label="Bass") | |
| drums_output = gr.Audio(type="filepath", label="Drums") | |
| other_output = gr.Audio(type="filepath", label="Other") | |
| submit.click(predict_full, | |
| inputs=[text, melody, 10, 250, 0, 1.0, 3.0], | |
| outputs=[audio_output, vocals_output, bass_output, drums_output, other_output]) | |
| radio.change(toggle_audio_src, radio, [melody], queue=False, show_progress=False) | |
| gr.Examples( | |
| fn=predict_full, | |
| examples=[ | |
| [ | |
| "An 80s driving pop song with heavy drums and synth pads in the background", | |
| "./assets/bach.mp3", | |
| ], | |
| [ | |
| "A cheerful country song with acoustic guitars", | |
| "./assets/bolero_ravel.mp3", | |
| ], | |
| [ | |
| "90s rock song with electric guitar and heavy drums", | |
| None, | |
| ], | |
| [ | |
| "a light and cheerly EDM track, with syncopated drums, aery pads, and strong emotions", | |
| "./assets/bach.mp3", | |
| ], | |
| [ | |
| "lofi slow bpm electro chill with organic samples", | |
| None, | |
| ], | |
| ], | |
| inputs=[text, melody], | |
| outputs=[audio_output, vocals_output, bass_output, drums_output, other_output] | |
| ) | |
| gr.Interface( | |
| fn=inference, | |
| inputs=gr.inputs.Audio(type="numpy", label="Input Audio"), | |
| outputs=[ | |
| gr.outputs.Audio(type="filepath", label="Vocals"), | |
| gr.outputs.Audio(type="filepath", label="Bass"), | |
| gr.outputs.Audio(type="filepath", label="Drums"), | |
| gr.outputs.Audio(type="filepath", label="Other"), | |
| ], | |
| title="MusicGen and Demucs Combination", | |
| description="A combined demo of MusicGen and Demucs", | |
| article="", | |
| ).launch(enable_queue=True) | |
| if __name__ == "__main__": | |
| parser = argparse.ArgumentParser() | |
| parser.add_argument( | |
| '--listen', | |
| type=str, | |
| default='0.0.0.0' if 'SPACE_ID' in os.environ else '127.0.0.1', | |
| help='IP to listen on for connections to Gradio', | |
| ) | |
| parser.add_argument( | |
| '--username', type=str, default='', help='Username for authentication' | |
| ) | |
| parser.add_argument( | |
| '--password', type=str, default='', help='Password for authentication' | |
| ) | |
| parser.add_argument( | |
| '--server_port', | |
| type=int, | |
| default=0, | |
| help='Port to run the server listener on', | |
| ) | |
| parser.add_argument( | |
| '--inbrowser', action='store_true', help='Open in browser' | |
| ) | |
| parser.add_argument( | |
| '--share', action='store_true', help='Share the gradio UI' | |
| ) | |
| args = parser.parse_args() | |
| launch_kwargs = {} | |
| launch_kwargs['server_name'] = args.listen | |
| if args.username and args.password: | |
| launch_kwargs['auth'] = (args.username, args.password) | |
| if args.server_port: | |
| launch_kwargs['server_port'] = args.server_port | |
| if args.inbrowser: | |
| launch_kwargs['inbrowser'] = args.inbrowser | |
| if args.share: | |
| launch_kwargs['share'] = args.share | |
| ui_full(launch_kwargs) |