| | import argparse
|
| | import torch
|
| |
|
| | from llava.constants import IMAGE_TOKEN_INDEX, DEFAULT_IMAGE_TOKEN, DEFAULT_IM_START_TOKEN, DEFAULT_IM_END_TOKEN
|
| | from llava.conversation import conv_templates, SeparatorStyle
|
| | from llava.model.builder import load_pretrained_model
|
| | from llava.utils import disable_torch_init
|
| | from llava.mm_utils import process_images, tokenizer_image_token, get_model_name_from_path, KeywordsStoppingCriteria
|
| |
|
| | from PIL import Image
|
| |
|
| | import requests
|
| | from PIL import Image
|
| | from io import BytesIO
|
| | from transformers import TextStreamer
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| |
|
| |
|
| | def load_image(image_file):
|
| | if image_file.startswith('http://') or image_file.startswith('https://'):
|
| | response = requests.get(image_file)
|
| | image = Image.open(BytesIO(response.content)).convert('RGB')
|
| | else:
|
| | image = Image.open(image_file).convert('RGB')
|
| | return image
|
| |
|
| |
|
| | def main(args):
|
| |
|
| | disable_torch_init()
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| |
|
| | model_name = get_model_name_from_path(args.model_path)
|
| | tokenizer, model, image_processor, context_len = load_pretrained_model(args.model_path, args.model_base, model_name, args.load_8bit, args.load_4bit, device=args.device)
|
| |
|
| | if 'llama-2' in model_name.lower():
|
| | conv_mode = "llava_llama_2"
|
| | elif "v1" in model_name.lower():
|
| | conv_mode = "llava_v1"
|
| | elif "mpt" in model_name.lower():
|
| | conv_mode = "mpt"
|
| | else:
|
| | conv_mode = "llava_v0"
|
| |
|
| | if args.conv_mode is not None and conv_mode != args.conv_mode:
|
| | print('[WARNING] the auto inferred conversation mode is {}, while `--conv-mode` is {}, using {}'.format(conv_mode, args.conv_mode, args.conv_mode))
|
| | else:
|
| | args.conv_mode = conv_mode
|
| |
|
| | conv = conv_templates[args.conv_mode].copy()
|
| | if "mpt" in model_name.lower():
|
| | roles = ('user', 'assistant')
|
| | else:
|
| | roles = conv.roles
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| |
|
| | image = load_image(args.image_file)
|
| |
|
| | image_tensor = process_images([image], image_processor, args)
|
| | if type(image_tensor) is list:
|
| | image_tensor = [image.to(model.device, dtype=torch.float16) for image in image_tensor]
|
| | else:
|
| | image_tensor = image_tensor.to(model.device, dtype=torch.float16)
|
| |
|
| | while True:
|
| | try:
|
| | inp = input(f"{roles[0]}: ")
|
| | except EOFError:
|
| | inp = ""
|
| | if not inp:
|
| | print("exit...")
|
| | break
|
| |
|
| | print(f"{roles[1]}: ", end="")
|
| |
|
| | if image is not None:
|
| |
|
| | if model.config.mm_use_im_start_end:
|
| | inp = DEFAULT_IM_START_TOKEN + DEFAULT_IMAGE_TOKEN + DEFAULT_IM_END_TOKEN + '\n' + inp
|
| | else:
|
| | inp = DEFAULT_IMAGE_TOKEN + '\n' + inp
|
| | conv.append_message(conv.roles[0], inp)
|
| | image = None
|
| | else:
|
| |
|
| | conv.append_message(conv.roles[0], inp)
|
| | conv.append_message(conv.roles[1], None)
|
| | prompt = conv.get_prompt()
|
| |
|
| | input_ids = tokenizer_image_token(prompt, tokenizer, IMAGE_TOKEN_INDEX, return_tensors='pt').unsqueeze(0).cuda()
|
| | stop_str = conv.sep if conv.sep_style != SeparatorStyle.TWO else conv.sep2
|
| | keywords = [stop_str]
|
| | stopping_criteria = KeywordsStoppingCriteria(keywords, tokenizer, input_ids)
|
| | streamer = TextStreamer(tokenizer, skip_prompt=True, skip_special_tokens=True)
|
| |
|
| | with torch.inference_mode():
|
| | output_ids = model.generate(
|
| | input_ids,
|
| | images=image_tensor,
|
| | do_sample=True,
|
| | temperature=args.temperature,
|
| | max_new_tokens=args.max_new_tokens,
|
| | streamer=streamer,
|
| | use_cache=True,
|
| | stopping_criteria=[stopping_criteria])
|
| |
|
| | outputs = tokenizer.decode(output_ids[0, input_ids.shape[1]:]).strip()
|
| | conv.messages[-1][-1] = outputs
|
| |
|
| | if args.debug:
|
| | print("\n", {"prompt": prompt, "outputs": outputs}, "\n")
|
| |
|
| |
|
| | if __name__ == "__main__":
|
| | parser = argparse.ArgumentParser()
|
| | parser.add_argument("--model-path", type=str, default="facebook/opt-350m")
|
| | parser.add_argument("--model-base", type=str, default=None)
|
| | parser.add_argument("--image-file", type=str, required=True)
|
| | parser.add_argument("--device", type=str, default="cuda")
|
| | parser.add_argument("--conv-mode", type=str, default=None)
|
| | parser.add_argument("--temperature", type=float, default=0.2)
|
| | parser.add_argument("--max-new-tokens", type=int, default=512)
|
| | parser.add_argument("--load-8bit", action="store_true")
|
| | parser.add_argument("--load-4bit", action="store_true")
|
| | parser.add_argument("--debug", action="store_true")
|
| | parser.add_argument("--image-aspect-ratio", type=str, default='pad')
|
| | args = parser.parse_args()
|
| | main(args)
|
| |
|
