import argparse, os, sys, glob import pathlib directory = pathlib.Path(os.getcwd()) print(directory) sys.path.append(str(directory)) import torch import numpy as np from omegaconf import OmegaConf from PIL import Image from tqdm import tqdm, trange from ldm.util import instantiate_from_config from ldm.models.diffusion.scheduling_lcm import LCMSampler from ldm.models.diffusion.plms import PLMSSampler import pandas as pd from torch.utils.data import DataLoader from tqdm import tqdm from icecream import ic from pathlib import Path import soundfile as sf import yaml import datetime from vocoder.bigvgan.models import VocoderBigVGAN import soundfile # from pytorch_memlab import LineProfiler,profile def load_model_from_config(config, ckpt = None, verbose=True): model = instantiate_from_config(config.model) if ckpt: print(f"Loading model from {ckpt}") pl_sd = torch.load(ckpt, map_location="cpu") sd = pl_sd["state_dict"] m, u = model.load_state_dict(sd, strict=False) if len(m) > 0 and verbose: print("missing keys:") print(m) if len(u) > 0 and verbose: print("unexpected keys:") print(u) else: print(f"Note chat no ckpt is loaded !!!") model.cuda() model.eval() return model class GenSamples: def __init__(self,sampler,model,outpath,vocoder = None,save_mel = True,save_wav = True, original_inference_steps=None) -> None: self.sampler = sampler self.model = model self.outpath = outpath if save_wav: assert vocoder is not None self.vocoder = vocoder self.save_mel = save_mel self.save_wav = save_wav self.channel_dim = self.model.channels self.original_inference_steps = original_inference_steps def gen_test_sample(self,prompt,mel_name = None,wav_name = None):# prompt is {'ori_caption':’xxx‘,'struct_caption':'xxx'} uc = None record_dicts = [] # if os.path.exists(os.path.join(self.outpath,mel_name+f'_0.npy')): # return record_dicts emptycap = {'ori_caption':1*[""],'struct_caption':1*[""]} uc = self.model.get_learned_conditioning(emptycap) for n in range(1):# trange(self.opt.n_iter, desc="Sampling"): for k,v in prompt.items(): prompt[k] = 1 * [v] c = self.model.get_learned_conditioning(prompt)# shape:[1,77,1280],即还没有变成句子embedding,仍是每个单词的embedding if self.channel_dim>0: shape = [self.channel_dim, 20, 312] # (z_dim, 80//2^x, 848//2^x) else: shape = [20, 312] samples_ddim, _ = self.sampler.sample(S=2, conditioning=c, batch_size=1, shape=shape, verbose=False, guidance_scale=5, original_inference_steps=self.original_inference_steps ) x_samples_ddim = self.model.decode_first_stage(samples_ddim) for idx,spec in enumerate(x_samples_ddim): spec = spec.squeeze(0).cpu().numpy() record_dict = {'caption':prompt['ori_caption'][0]} if self.save_mel: mel_path = os.path.join(self.outpath,mel_name+f'_{idx}.npy') np.save(mel_path,spec) record_dict['mel_path'] = mel_path if self.save_wav: wav = self.vocoder.vocode(spec) wav_path = os.path.join(self.outpath,wav_name+f'_{idx}.wav') soundfile.write(wav_path, wav, 16000) record_dict['audio_path'] = wav_path record_dicts.append(record_dict) return record_dicts prompt = 'I am a good man' config = OmegaConf.load("configs/audiolcm.yaml") # print("-------quick debug no load ckpt---------") # model = instantiate_from_config(config['model'])# for quick debug model = load_model_from_config(config, "../logs/2024-04-21T14-50-11_text2music-audioset-nonoverlap/epoch=000184.ckpt") device = torch.device("cuda") if torch.cuda.is_available() else torch.device("cpu") model = model.to(device) sampler = LCMSampler(model) os.makedirs("results/test", exist_ok=True) vocoder = VocoderBigVGAN("../vocoder/logs/bigvnat16k93.5w",device) generator = GenSamples(sampler,model,"results/test",vocoder,save_mel = False,save_wav = True, original_inference_steps=config.model.params.num_ddim_timesteps) csv_dicts = [] with torch.no_grad(): with model.ema_scope(): wav_name = f'{prompt.strip().replace(" ", "-")}' generator.gen_test_sample(prompt,wav_name=wav_name) print(f"Your samples are ready and waiting four you here: \nresults/test \nEnjoy.")