Include implementation of MViTV2-B and MViTV2-L models

[jsilter]

🚀 The feature, motivation and pitch

Currently Pytorch includes an implementation of MViTV2-S, showing that the model is useful. MViTV2-B and MViTV2-L are even more powerful. Weights are publicly available at https://github.com/facebookresearch/SlowFast/blob/main/projects/mvitv2/README.md.

Alternatives

The SlowFast library has an implementation but it's hard to use outside of the slowfast library. Would be much much easier to have something built in to pytorch.

Additional context

No response

[colesbury]

I think this might be more appropriate for https://github.com/pytorch/vision

[NicolasHug]

Hi @jsilter , thanks for the feature request. We're not planning on adding more models to torchvision at this time, sorry.