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from typing import Optional
import torch
from transformers import CLIPTokenizer, CLIPTextModel
def unify_input_ids(tokenizer: CLIPTokenizer, input_ids: list[list[int]]):
return tokenizer.pad(
{"input_ids": input_ids},
padding=True,
pad_to_multiple_of=tokenizer.model_max_length,
return_tensors="pt"
)
def get_extended_embeddings(
text_encoder: CLIPTextModel,
input_ids: torch.LongTensor,
position_ids: Optional[torch.LongTensor] = None,
attention_mask=None
):
model_max_length = text_encoder.config.max_position_embeddings
prompts = input_ids.shape[0]
input_ids = input_ids.view((-1, model_max_length)).to(text_encoder.device)
if position_ids is not None:
position_ids = position_ids.view((-1, model_max_length)).to(text_encoder.device)
if attention_mask is not None:
attention_mask = attention_mask.view((-1, model_max_length)).to(text_encoder.device)
text_embeddings = text_encoder(input_ids, position_ids=position_ids, attention_mask=attention_mask)[0]
text_embeddings = text_embeddings.view((prompts, -1, text_embeddings.shape[2]))
return text_embeddings
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