| from transformers import PretrainedConfig | |
| from transformers import CONFIG_MAPPING | |
| from transformers import AutoConfig | |
| IGNORE_INDEX = -100 | |
| IMAGE_TOKEN_INDEX = -200 | |
| DEFAULT_IMAGE_TOKEN = "<image>" | |
| class TinyLlavaConfig(PretrainedConfig): | |
| model_type = "tinyllava" | |
| def __init__( | |
| self, | |
| llm_model_name_or_path = '', | |
| tokenizer_name_or_path = None, | |
| vision_model_name_or_path = '', | |
| vision_model_name_or_path2 = '', | |
| connector_type = None, | |
| text_config=None, | |
| hidden_size=2048, | |
| vocab_size=32000, | |
| ignore_index=-100, | |
| image_token_index=32000, | |
| pad_token = None, | |
| pad_token_id = None, | |
| tokenizer_padding_side = 'right', | |
| tokenizer_model_max_length = 2048, | |
| vision_config = None, | |
| vision_hidden_size = None, | |
| vision_feature_layer = -2, | |
| vision_feature_select_strategy = 'patch', | |
| image_aspect_ratio = 'square', | |
| resampler_hidden_size = None, | |
| num_queries = None, | |
| num_resampler_layers = None, | |
| use_cache = False, | |
| cache_dir = None, | |
| tokenizer_use_fast = False, | |
| tune_type_llm = 'frozen', | |
| tune_type_connector = 'frozen', | |
| tune_type_vision_tower = 'frozen', | |
| tune_vision_tower_from_layer = -1, | |
| **kwargs | |
| ): | |
| self.llm_model_name_or_path = llm_model_name_or_path | |
| self.tokenizer_name_or_path = tokenizer_name_or_path or self.llm_model_name_or_path | |
| self.vision_model_name_or_path = vision_model_name_or_path | |
| self.vision_model_name_or_path2 = vision_model_name_or_path2 | |
| self.connector_type = connector_type | |
| self.tune_type_llm = tune_type_llm | |
| self.tune_type_connector = tune_type_connector | |
| self.tune_type_vision_tower = tune_type_vision_tower | |
| self.tune_vision_tower_from_layer = tune_vision_tower_from_layer | |
| self.ignore_index = IGNORE_INDEX | |
| self.image_token_index = IMAGE_TOKEN_INDEX | |
| self.pad_token = pad_token | |
| self.pad_token_id = pad_token_id | |
| self.tokenizer_padding_side = tokenizer_padding_side | |
| self.tokenizer_model_max_length = tokenizer_model_max_length | |
| self.vision_feature_layer = vision_feature_layer | |
| self.vision_feature_select_strategy = vision_feature_select_strategy | |
| self.image_aspect_ratio = image_aspect_ratio | |
| self.resampler_hidden_size = resampler_hidden_size | |
| self.num_queries = num_queries | |
| self.num_resampler_layers = num_resampler_layers | |
| self.use_cache = use_cache | |
| self.cache_dir = cache_dir | |
| self.tokenizer_use_fast = tokenizer_use_fast | |
| self._load_text_config(text_config) | |
| self._load_vision_config(vision_config) | |
| super().__init__(**kwargs) | |
| def _load_text_config(self, text_config=None): | |
| if self.llm_model_name_or_path is None or self.llm_model_name_or_path == '': | |
| self.text_config = CONFIG_MAPPING['llama']() | |
| else: | |
| self.text_config = AutoConfig.from_pretrained(self.llm_model_name_or_path, trust_remote_code=True) | |
| if text_config is not None: | |
| self.text_config = self.text_config.from_dict(text_config) | |
| self.hidden_size = getattr(self.text_config, 'hidden_size', getattr(self.text_config, 'model_dim', None)) | |
| self.vocab_size = getattr(self.text_config, 'vocab_size', None) | |
| def _load_vision_config(self, vision_config=None): | |
| if self.vision_model_name_or_path is None or self.vision_model_name_or_path == '': | |
| self.vision_config = CONFIG_MAPPING['clip_vision_model']( | |
| intermediate_size=4096, | |
| hidden_size=1024, | |
| patch_size=14, | |
| image_size=336, | |
| num_hidden_layers=24, | |
| num_attention_heads=16, | |
| vocab_size=32000, | |
| projection_dim=768, | |
| ) | |
| else: | |
| self.vision_config = AutoConfig.from_pretrained(self.vision_model_name_or_path.split(':')[-1]) | |
| self.vision_config = getattr(self.vision_config, 'vision_config', self.vision_config) | |
| if vision_config is not None: | |
| self.vision_config = self.vision_config.from_dict(vision_config) | |
| self.vision_config.model_name_or_path = self.vision_model_name_or_path.split(':')[-1] | |
| self.vision_config.model_name_or_path2 = self.vision_model_name_or_path2.split(':')[-1] | |
| self.vision_hidden_size = getattr(self.vision_config, 'hidden_size', None) | |