model/multimodal_encoder/builder.py

import os
from .clip_encoder import CLIPVisionTower


def build_vision_tower(vision_tower_cfg, **kwargs):
    vision_tower = 'google/siglip-so400m-patch14-384'
    is_absolute_path_exists = os.path.exists(vision_tower)
    if is_absolute_path_exists or vision_tower.startswith("openai") or vision_tower.startswith("laion") or vision_tower.startswith("google"):
        return CLIPVisionTower(vision_tower, args=vision_tower_cfg, **kwargs)

    raise ValueError(f'Unknown vision tower: {vision_tower}')