which stage to train for videos?

I only have videos with description and I want to ado video understanding. can I directly start fine tuning from stage 3? if yes where will we get the weights till stage 2? with this particular command, no weights are downloaded..only some files are downloaded.
python scripts/convert_hf_checkpoint.py --model_path DAMO-NLP-SG/VideoLLaMA3-7B --save_path weights/videollama3_7b_local

Start by reading scripts/convert_hf_checkpoint.py and checking the DAMO-NLP-SG/VideoLLaMA3-7B checkpoint referenced in the command. Determine which files the conversion downloads and how they relate to the stage 2 and stage 3 training prerequisites. Done means the required weights and the correct training stage are documented or the missing-weight behavior is reproducible.

Written by the indexing model from the issue text.