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# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
# Modified from HunyuanVL configuration for BrainOCR.
from transformers import PretrainedConfig
class BrainOCRVisionConfig(PretrainedConfig):
model_type = "brain_ocr"
base_config_key = "vision_config"
def __init__(
self,
hidden_act="gelu",
hidden_size=1152,
intermediate_size=4304,
interpolate_mode="bilinear",
rms_norm_eps=1e-05,
learnable_mlp_pooling_size=0,
num_attention_heads=16,
num_key_value_heads=None,
num_channels=3,
num_hidden_layers=27,
out_hidden_size=4096,
patch_size=16,
remove_prenorm=True,
spatial_merge_size=2,
temporal_patch_size=1,
resize_resolution=2048,
img_max_token_num=4096,
max_image_size=2048,
video_max_image_size=768,
video_min_image_size=256,
min_image_size=512,
anyres_vit_max_image_size=2048,
max_vit_seq_len=16384,
text_hidden_size=3072,
**kwargs,
):
super().__init__(**kwargs)
self.hidden_act = hidden_act
self.hidden_size = hidden_size
self.intermediate_size = intermediate_size
self.interpolate_mode = interpolate_mode
self.learnable_mlp_pooling_size = learnable_mlp_pooling_size
self.num_attention_heads = num_attention_heads
if not num_key_value_heads:
self.num_key_value_heads = num_attention_heads
else:
self.num_key_value_heads = num_key_value_heads
self.num_channels = num_channels
self.num_hidden_layers = num_hidden_layers
self.out_hidden_size = out_hidden_size
self.patch_size = patch_size
self.remove_prenorm = remove_prenorm
self.spatial_merge_size = spatial_merge_size
self.temporal_patch_size = temporal_patch_size
self.rms_norm_eps = rms_norm_eps
self.resize_resolution = resize_resolution
self.img_max_token_num = img_max_token_num
self.max_image_size = max_image_size
self.min_image_size = min_image_size
self.video_max_image_size = video_max_image_size
self.video_min_image_size = video_min_image_size
self.anyres_vit_max_image_size = anyres_vit_max_image_size
self.max_vit_seq_len = max_vit_seq_len
self.text_hidden_size = text_hidden_size
class BrainOCRTextConfig(PretrainedConfig):
r"""
Configuration class for BrainOCR text model.
Args:
vocab_size (`int`, *optional*, defaults to 290943):
Vocabulary size of the model.
hidden_size (`int`, *optional*, defaults to 4096):
Dimension of the hidden representations.
intermediate_size (`int`, *optional*, defaults to 11008):
Dimension of the MLP representations.
num_hidden_layers (`int`, *optional*, defaults to 32):
Number of hidden layers in the Transformer decoder.
num_attention_heads (`int`, *optional*, defaults to 32):
Number of attention heads for each attention layer.
num_key_value_heads (`int`, *optional*):
Number of key_value heads for Grouped Query Attention.
hidden_act (`str` or `function`, *optional*, defaults to `"silu"`):
The non-linear activation function in the decoder.
max_position_embeddings (`int`, *optional*, defaults to 2048):
The maximum sequence length.
rms_norm_eps (`float`, *optional*, defaults to 1e-05):
The epsilon used by the rms normalization layers.
rope_theta (`float`, *optional*, defaults to 10000.0):
The base period of the RoPE embeddings.
head_dim (`int`, *optional*, defaults to 128):
The attention head dimension.
"""
model_type = "brain_ocr_text"
keys_to_ignore_at_inference = ["past_key_values"]
def __init__(
self,
vocab_size=290943,
hidden_size=4096,
intermediate_size: int = 11008,
num_hidden_layers=32,
num_attention_heads=32,
num_key_value_heads=None,
hidden_act="silu",
max_position_embeddings=2048,
initializer_range=0.02,
rms_norm_eps=1e-5,
use_cache=True,
pad_token_id=0,
bos_token_id=1,
eos_token_id=2,
eod_token_id=3,
pretraining_tp=1,
tie_word_embeddings=False,
rope_theta=10000.0,
rope_scaling=None,
attention_bias=False,
attention_dropout=0.0,
head_dim=None,
**kwargs,
):
self.vocab_size = vocab_size
self.max_position_embeddings = max_position_embeddings
self.hidden_size = hidden_size
self.intermediate_size = intermediate_size
self.num_hidden_layers = num_hidden_layers
self.num_attention_heads = num_attention_heads
self.head_dim = head_dim
if num_key_value_heads is None:
num_key_value_heads = num_attention_heads
self.num_key_value_heads = num_key_value_heads
self.hidden_act = hidden_act
self.initializer_range = initializer_range
self.rms_norm_eps = rms_norm_eps
self.pretraining_tp = pretraining_tp
self.use_cache = use_cache
self.rope_theta = rope_theta
self.rope_scaling = rope_scaling
self.attention_bias = attention_bias
self.attention_dropout = attention_dropout
super().__init__(
pad_token_id=pad_token_id,
bos_token_id=bos_token_id,
eos_token_id=eos_token_id,
tie_word_embeddings=tie_word_embeddings,
**kwargs,
)
def _rope_scaling_validation(self):
"""Validate the `rope_scaling` configuration."""
if self.rope_scaling is None:
return
if not isinstance(self.rope_scaling, dict) or len(self.rope_scaling) != 2:
raise ValueError(
"`rope_scaling` must be a dictionary with two fields, `type` and "
f"`factor` or `type` and `alpha`, got {self.rope_scaling}"
)
rope_scaling_type = self.rope_scaling.get("type", None)
rope_scaling_factor = self.rope_scaling.get("factor", None)
rope_scaling_alpha = self.rope_scaling.get("alpha", None)
if rope_scaling_type is None or rope_scaling_type not in ["linear", "dynamic"]:
raise ValueError(
"`rope_scaling`'s type field must be one of ['linear', 'dynamic'], "
f"got {rope_scaling_type}"
)
if rope_scaling_factor is None and rope_scaling_alpha is None:
raise ValueError(
"`rope_scaling`'s factor or alpha field must be have one, "
"got both of none"
)
if rope_scaling_factor is not None and (
not isinstance(rope_scaling_factor, float) or rope_scaling_factor <= 1.0
):
raise ValueError(
"`rope_scaling`'s factor field must be a float > 1.0, "
f"got {rope_scaling_factor}"
)
if rope_scaling_alpha is not None and (
not isinstance(rope_scaling_alpha, float) or rope_scaling_alpha <= 1.0
):
raise ValueError(
"`rope_scaling`'s alpha field must be a float > 1.0, "
f"got {rope_scaling_alpha}"
)
class BrainOCRConfig(PretrainedConfig):
model_type = "brain_ocr"
sub_configs = {
"vision_config": BrainOCRVisionConfig,
"text_config": BrainOCRTextConfig,
}
keys_to_ignore_at_inference = ["past_key_values"]
def __init__(
self,
text_config=None,
vision_config=None,
im_start_id=120118,
im_end_id=120119,
image_token_id=120120,
im_newline_id=120121,
video_start_id=120122,
video_end_id=120123,
**kwargs,
):
super().__init__(**kwargs)
if isinstance(vision_config, dict):
self.vision_config = self.sub_configs["vision_config"](**vision_config)
elif vision_config is None:
self.vision_config = self.sub_configs["vision_config"]()
if isinstance(text_config, dict):
self.text_config = self.sub_configs["text_config"](**text_config)
elif text_config is None:
self.text_config = self.sub_configs["text_config"](**kwargs)
self.image_token_id = image_token_id
self.im_start_id = im_start_id
self.im_end_id = im_end_id
self.im_newline_id = im_newline_id
self.video_start_id = video_start_id
self.video_end_id = video_end_id
self.vision_config.text_hidden_size = self.text_config.hidden_size
self._attn_implementation = kwargs.pop("attn_implementation", None)
def __setattr__(self, key, value):
if (
(text_config := super().__getattribute__("__dict__").get("text_config"))
is not None
and key not in ["dtype", "_attn_implementation_internal"]
and key in text_config.__dict__
):
setattr(text_config, key, value)
else:
super().__setattr__(key, value)
def __getattribute__(self, key):
if "text_config" in super().__getattribute__("__dict__") and key not in [
"_name_or_path",
"model_type",
"dtype",
"_attn_implementation_internal",
]:
text_config = super().__getattribute__("text_config")
if key in text_config.__dict__:
return getattr(text_config, key)
return super().__getattribute__(key)
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