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| import sys | |
| import os | |
| import torch | |
| import librosa | |
| from open_clip import create_model | |
| from training.data import get_audio_features | |
| from training.data import int16_to_float32, float32_to_int16 | |
| from transformers import RobertaTokenizer | |
| tokenize = RobertaTokenizer.from_pretrained("roberta-base") | |
| def tokenizer(text): | |
| result = tokenize( | |
| text, | |
| padding="max_length", | |
| truncation=True, | |
| max_length=77, | |
| return_tensors="pt", | |
| ) | |
| return {k: v.squeeze(0) for k, v in result.items()} | |
| PRETRAINED_PATH = "/mnt/fast/nobackup/users/hl01486/projects/contrastive_pretraining/CLAP/assets/checkpoints/epoch_top_0_audioset_no_fusion.pt" | |
| WAVE_48k_PATH = "/mnt/fast/nobackup/users/hl01486/projects/contrastive_pretraining/CLAP/assets/audio/machine.wav" | |
| def infer_text(): | |
| device = "cuda:0" if torch.cuda.is_available() else "cpu" | |
| precision = "fp32" | |
| amodel = "HTSAT-tiny" # or 'PANN-14' | |
| tmodel = "roberta" # the best text encoder in our training | |
| enable_fusion = False # False if you do not want to use the fusion model | |
| fusion_type = "aff_2d" | |
| pretrained = PRETRAINED_PATH | |
| model, model_cfg = create_model( | |
| amodel, | |
| tmodel, | |
| pretrained, | |
| precision=precision, | |
| device=device, | |
| enable_fusion=enable_fusion, | |
| fusion_type=fusion_type, | |
| ) | |
| # load the text, can be a list (i.e. batch size) | |
| text_data = ["I love the contrastive learning", "I love the pretrain model"] | |
| # tokenize for roberta, if you want to tokenize for another text encoder, please refer to data.py#L43-90 | |
| text_data = tokenizer(text_data) | |
| text_embed = model.get_text_embedding(text_data) | |
| print(text_embed.size()) | |
| def infer_audio(): | |
| device = "cuda:0" if torch.cuda.is_available() else "cpu" | |
| precision = "fp32" | |
| amodel = "HTSAT-tiny" # or 'PANN-14' | |
| tmodel = "roberta" # the best text encoder in our training | |
| enable_fusion = False # False if you do not want to use the fusion model | |
| fusion_type = "aff_2d" | |
| pretrained = PRETRAINED_PATH | |
| model, model_cfg = create_model( | |
| amodel, | |
| tmodel, | |
| pretrained, | |
| precision=precision, | |
| device=device, | |
| enable_fusion=enable_fusion, | |
| fusion_type=fusion_type, | |
| ) | |
| # load the waveform of the shape (T,), should resample to 48000 | |
| audio_waveform, sr = librosa.load(WAVE_48k_PATH, sr=48000) | |
| # quantize | |
| audio_waveform = int16_to_float32(float32_to_int16(audio_waveform)) | |
| audio_waveform = torch.from_numpy(audio_waveform).float() | |
| audio_dict = {} | |
| # the 'fusion' truncate mode can be changed to 'rand_trunc' if run in unfusion mode | |
| import ipdb | |
| ipdb.set_trace() | |
| audio_dict = get_audio_features( | |
| audio_dict, | |
| audio_waveform, | |
| 480000, | |
| data_truncating="fusion", | |
| data_filling="repeatpad", | |
| audio_cfg=model_cfg["audio_cfg"], | |
| ) | |
| # can send a list to the model, to process many audio tracks in one time (i.e. batch size) | |
| audio_embed = model.get_audio_embedding([audio_dict]) | |
| print(audio_embed.size()) | |
| import ipdb | |
| ipdb.set_trace() | |
| if __name__ == "__main__": | |
| infer_text() | |
| infer_audio() | |