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fix on blip_caption.py: prepare prompt for beam search, aovid tensor … #251

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fix on blip_caption.py: prepare prompt for beam search, aovid tensor … #251

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4 changes: 4 additions & 0 deletions lavis/models/blip_models/blip_caption.py
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Original file line number Diff line number Diff line change
Expand Up @@ -183,6 +183,10 @@ def generate(
prompt = self.tokenizer(prompt, return_tensors="pt").to(self.device)
prompt.input_ids[:, 0] = self.tokenizer.bos_token_id
prompt.input_ids = prompt.input_ids[:, :-1]

# prepare prompt for beam search
if not use_nucleus_sampling:
prompt.input_ids = torch.repeat_interleave(prompt.input_ids, num_beams, dim=0)

# get decoded text
decoder_out = self.text_decoder.generate_from_encoder(
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