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import os
from typing import Optional
from modules.paths import *
DEFAULT_MODEL_TYPE = "sam2_hiera_large"
AVAILABLE_MODELS = {
"sam2_hiera_tiny": ["sam2_hiera_tiny.pt", "https://dl.fbaipublicfiles.com/segment_anything_2/072824/sam2_hiera_tiny.pt"],
"sam2_hiera_small": ["sam2_hiera_small.pt", "https://dl.fbaipublicfiles.com/segment_anything_2/072824/sam2_hiera_small.pt"],
"sam2_hiera_base_plus": ["sam2_hiera_base_plus.pt", "https://dl.fbaipublicfiles.com/segment_anything_2/072824/sam2_hiera_base_plus.pt"],
"sam2_hiera_large": ["sam2_hiera_large.pt", "https://dl.fbaipublicfiles.com/segment_anything_2/072824/sam2_hiera_large.pt"],
}
def download_sam_model_url(model_type: str,
model_dir: str = MODELS_DIR):
filename, url = AVAILABLE_MODELS[model_type]
load_file_from_url(url=url, model_dir=model_dir)
def load_file_from_url(
url: str,
*,
model_dir: str,
progress: bool = True,
filename: Optional[str] = None,
) -> str:
from urllib.parse import urlparse
"""
Download a file from `url` into `model_dir`, using the file present if possible.
Returns the path to the downloaded file.
"""
os.makedirs(model_dir, exist_ok=True)
if not filename:
parts = urlparse(url)
filename = os.path.basename(parts.path)
cached_file = os.path.abspath(os.path.join(model_dir, filename))
if not os.path.exists(cached_file):
print(f'Downloading: "{url}" to {cached_file}\n')
from torch.hub import download_url_to_file
download_url_to_file(url, cached_file, progress=progress)
return cached_file
def is_sam_exist(
model_type: str,
model_dir: Optional[str] = None
):
if model_dir is None:
model_dir = MODELS_DIR
filename, url = AVAILABLE_MODELS[model_type]
model_path = os.path.join(model_dir, filename)
return os.path.exists(model_path)
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