o
    ߥi$                     @   s8   d Z ddlZddlmZ dddZG dd dejZdS )	z C3D Model Architecture.    N   c                 C   s   t j| |d|ddS )N   r   )kernel_sizestridepadding)nnConv3d)	in_planes
out_planesr    r   c/home/ubuntu/.local/lib/python3.10/site-packages/modelscope/models/cv/cmdssl_video_embedding/c3d.py	conv3x3x3   s   
r   c                       s0   e Zd Z					d
 fdd	Zdd	 Z  ZS )C3D        ?r   NTc                    sD  t t|   |d u rtj}|s|d urtdt|d| _|d| _tj	dd| _
tjddd| _tdd| _|d| _tj	dd| _tjddd| _tdd	| _|d	| _tj	dd| _td	d	| _|d	| _tj	dd| _tjddd| _td	d
| _|d
| _tj	dd| _td
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| _#tj	dd| _$|rt%dnd | _&|d u rd | _'d | _(nt)|| _'t*d
|| _(d
| _+| , D ].}t-|tj.rtj/j0|j1ddd qt-|tjtj2frtj/3|j1d tj/3|j4d qd S )Nz/num_classes should be None when last_pool=False@   T)inplace)r      r   )r   r      )r   r   r      i   )r   r   r   fan_outrelu)modenonlinearityr   r   )5superr   __init__r   BatchNorm3d
ValueErrorr   conv1bn1ReLUrelu1	MaxPool3dpool1conv2bn2relu2pool2conv3abn3arelu3aconv3bbn3brelu3bpool3conv4abn4arelu4aconv4bbn4brelu4bpool4conv5abn5arelu5aconv5bbn5brelu5bAdaptiveAvgPool3dpool5dropoutfcDropoutLinearr
   modules
isinstancer   initkaiming_normal_weight	GroupNorm	constant_bias)selfnum_classesr>   inplanes
norm_layer	last_poolm	__class__r   r   r      sd   

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
zC3D.__init__c                 C   sX  |  |}| |}| |}| |}| |}| |}| |}| |}| |}| 	|}| 
|}| |}| |}| |}| |}| |}| |}| |}| |}| |}| |}| |}| |}| |}| |}| |}| |}| |}| jr| |}t|d}| jr| j r| |}|  |}|S )Nr   )!r   r   r!   r#   r$   r%   r&   r'   r(   r)   r*   r+   r,   r-   r.   r/   r0   r1   r2   r3   r4   r5   r6   r7   r8   r9   r:   r;   r=   torchflattenr>   r?   )rJ   xr   r   r   forwardU   sF   
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zC3D.forward)r   r   r   NT)__name__
__module____qualname__r   rU   __classcell__r   r   rP   r   r      s    Ar   )r   )__doc__rR   torch.nnr   r   Moduler   r   r   r   r   <module>   s
   
