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import os |
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import sys |
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sys.path.append('./codeclm/tokenizer') |
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sys.path.append('./codeclm/tokenizer/Flow1dVAE') |
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sys.path.append('.') |
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import torch |
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import json |
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import numpy as np |
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from omegaconf import OmegaConf |
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from codeclm.trainer.codec_song_pl import CodecLM_PL |
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from codeclm.models import CodecLM |
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from separator import Separator |
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class LeVoInference(torch.nn.Module): |
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def __init__(self, ckpt_path): |
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super().__init__() |
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torch.backends.cudnn.enabled = False |
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OmegaConf.register_new_resolver("eval", lambda x: eval(x)) |
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OmegaConf.register_new_resolver("concat", lambda *x: [xxx for xx in x for xxx in xx]) |
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OmegaConf.register_new_resolver("get_fname", lambda: 'default') |
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OmegaConf.register_new_resolver("load_yaml", lambda x: list(OmegaConf.load(x))) |
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cfg_path = os.path.join(ckpt_path, 'config.yaml') |
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pt_path = os.path.join(ckpt_path, 'model.pt') |
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self.cfg = OmegaConf.load(cfg_path) |
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self.cfg.mode = 'inference' |
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self.max_duration = self.cfg.max_dur |
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model_light = CodecLM_PL(self.cfg, pt_path) |
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model_light = model_light.eval().cuda() |
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model_light.audiolm.cfg = self.cfg |
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self.model_lm = model_light.audiolm |
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self.model_audio_tokenizer = model_light.audio_tokenizer |
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self.model_seperate_tokenizer = model_light.seperate_tokenizer |
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self.model = CodecLM(name = "tmp", |
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lm = self.model_lm, |
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audiotokenizer = self.model_audio_tokenizer, |
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max_duration = self.max_duration, |
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seperate_tokenizer = self.model_seperate_tokenizer, |
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) |
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self.separator = Separator() |
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self.default_params = dict( |
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cfg_coef = 1.5, |
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temperature = 1.0, |
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top_k = 50, |
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top_p = 0.0, |
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record_tokens = True, |
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record_window = 50, |
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extend_stride = 5, |
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duration = self.max_duration, |
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) |
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self.model.set_generation_params(**self.default_params) |
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def forward(self, lyric: str, description: str = None, prompt_audio_path: os.PathLike = None, genre: str = None, auto_prompt_path: os.PathLike = None, params = dict()): |
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params = {**self.default_params, **params} |
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self.model.set_generation_params(**params) |
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if prompt_audio_path is not None and os.path.exists(prompt_audio_path): |
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pmt_wav, vocal_wav, bgm_wav = self.separator.run(prompt_audio_path) |
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melody_is_wav = True |
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elif genre is not None and auto_prompt_path is not None: |
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auto_prompt = torch.load(auto_prompt_path) |
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merge_prompt = [item for sublist in auto_prompt.values() for item in sublist] |
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if genre == "Auto": |
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prompt_token = merge_prompt[np.random.randint(0, len(merge_prompt))] |
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else: |
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prompt_token = auto_prompt[genre][np.random.randint(0, len(auto_prompt[genre]))] |
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pmt_wav = prompt_token[:,[0],:] |
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vocal_wav = prompt_token[:,[1],:] |
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bgm_wav = prompt_token[:,[2],:] |
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melody_is_wav = False |
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else: |
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pmt_wav = None |
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vocal_wav = None |
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bgm_wav = None |
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melody_is_wav = True |
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generate_inp = { |
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'lyrics': [lyric.replace(" ", " ")], |
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'descriptions': [description], |
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'melody_wavs': pmt_wav, |
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'vocal_wavs': vocal_wav, |
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'bgm_wavs': bgm_wav, |
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'melody_is_wav': melody_is_wav, |
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} |
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with torch.autocast(device_type="cuda", dtype=torch.float16): |
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tokens = self.model.generate(**generate_inp, return_tokens=True) |
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if tokens.shape[-1] > 3000: |
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tokens = tokens[..., :3000] |
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with torch.no_grad(): |
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if melody_is_wav: |
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wav_seperate = self.model.generate_audio(tokens, pmt_wav, vocal_wav, bgm_wav) |
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else: |
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wav_seperate = self.model.generate_audio(tokens) |
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return wav_seperate[0] |
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