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Running
on
Zero
File size: 5,611 Bytes
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import argparse
import torch
from videollama2.constants import IMAGE_TOKEN_INDEX, DEFAULT_IMAGE_TOKEN, DEFAULT_IM_START_TOKEN, DEFAULT_IM_END_TOKEN, NUM_FRAMES
from videollama2.conversation import conv_templates, SeparatorStyle
from videollama2.model.builder import load_pretrained_model
from videollama2.utils import disable_torch_init
from videollama2.mm_utils import process_images, tokenizer_image_token, get_model_name_from_path, tokenizer_MMODAL_token
from PIL import Image
from decord import VideoReader, cpu
import requests
from io import BytesIO
from transformers import TextStreamer
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 load_video(video_file):
decord_vr = VideoReader(uri=video_file, ctx=cpu(0))
duration = len(decord_vr)
frame_id_list = np.linspace(0, duration-1, NUM_FRAMES, dtype=int)
video = decord_vr.get_batch(frame_id_list)
return video
def load_image_or_video(image_or_video_file):
if file_path.endswith(('.jpg', '.jpeg', '.png', '.bmp')):
return load_image(image_file=image_or_video_file)
elif file_path.endswith(('.mp4', '.avi', '.mov')):
return load_video(video_file=image_or_video_file)
else:
raise Exception(f"File type of {image_or_video_file} not supported!!!")
def main(args):
# Model
disable_torch_init()
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 "mistral" in model_name.lower():
# conv_mode = "mistral_instruct"
# elif "v1.6-34b" in model_name.lower():
# conv_mode = "chatml_direct"
# elif "v1" in model_name.lower():
# conv_mode = "llava_v1"
# elif "mpt" in model_name.lower():
# conv_mode = "mpt"
# else:
# conv_mode = "llava_v0"
conv_mode = "llava_v1" # fix conversation mode for now
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
image = load_image(args.image_file)
image_size = image.size
# Similar operation in model_worker.py
image_tensor = process_images([image], image_processor, model.config)
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:
# first message
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:
# later messages
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).to(model.device)
stop_str = conv.sep if conv.sep_style != SeparatorStyle.TWO else conv.sep2
keywords = [stop_str]
streamer = TextStreamer(tokenizer, skip_prompt=True, skip_special_tokens=True)
with torch.inference_mode():
output_ids = model.generate(
input_ids,
images=image_tensor,
image_sizes=[image_size],
do_sample=True if args.temperature > 0 else False,
temperature=args.temperature,
max_new_tokens=args.max_new_tokens,
streamer=streamer,
use_cache=True)
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")
args = parser.parse_args()
main(args)
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