custom convolution1d_vulkan layer - bottom_shapes and top_shapes

[magicse]

I created a custom convolution1d_vulkan layer for fp32 and it works great .
But I have one question.
In the create_pipeline function, I try to check the bottom_shapes and top_shapes variables, but I always get an empty variables.
Is it correct?
And what case these variables will have values?

int Convolution1D_vulkan::create_pipeline(const Option& _opt)
{
     std::cout << "=== Create Pipeline: ===" << std::endl;
     if (dynamic_weight)
     {
         support_vulkan=false;
         support_image_storage = false;
         return 0;
     }

     // Create a convolution pipeline using Vulkan
     Optionopt = _opt;
     const Mat& shape = bottom_shapes.empty() ? Mat() : bottom_shapes[0];
     const Mat& out_shape = top_shapes.empty() ? Mat() : top_shapes[0];
     std::cout << "=== Create Pipeline: ===" << std::endl;
     std::cout << "=== Create Pipeline: New shape from bottom_shapes WxHxC x Dims ===" << shape.w << " " << shape.h << " " << shape.c << " " << shape.dims <<std::endl;
     std::cout << "=== Create Pipeline: New out_shape from top_shapes WxHxC x Dims ===" << out_shape.w << " " << out_shape.h << " " << out_shape.c << " " << out_shape.dims << std::endl;

Output

=== Create Pipeline: ===
=== Create Pipeline: New shape from bottom_shapes WxHxC x Dims ===0 0 0 0
=== Create Pipeline: New out_shape from top_shapes WxHxC x Dims ===0 0 0 0