python
import sys
sys.path.append('./')
from videollama2 import model_init, mm_infer
from videollama2.utils import disable_torch_init
import argparse

def inference(args):

    model_path = args.model_path
    model, processor, tokenizer = model_init(model_path)

    if args.modal_type == "a":
        model.model.vision_tower = None
    elif args.modal_type == "v":
        model.model.audio_tower = None
    elif args.modal_type == "av":
        pass
    else:
        raise NotImplementedError
    
Audio-visual Inference
    audio_video_path = "assets/00003491.mp4"
    preprocess = processor['audio' if args.modal_type == "a" else "video"]
    if args.modal_type == "a":
        audio_video_tensor = preprocess(audio_video_path)
    else:
        audio_video_tensor = preprocess(audio_video_path, va=True if args.modal_type == "av" else False)
    question = f"Please describe the video with audio information."

    
Audio Inference
    audio_video_path = "assets/bird-twitter-car.wav"
    preprocess = processor['audio' if args.modal_type == "a" else "video"]
    if args.modal_type == "a":
        audio_video_tensor = preprocess(audio_video_path)
    else:
        audio_video_tensor = preprocess(audio_video_path, va=True if args.modal_type == "av" else False)
    question = f"Please describe the audio."

    
Video Inference
    audio_video_path = "assets/output_v_1jgsRbGzCls.mp4"
    preprocess = processor['audio' if args.modal_type == "a" else "video"]
    if args.modal_type == "a":
        audio_video_tensor = preprocess(audio_video_path)
    else:
        audio_video_tensor = preprocess(audio_video_path, va=True if args.modal_type == "av" else False)
    question = f"What activity are the people practicing in the video?"

    output = mm_infer(
        audio_video_tensor,
        question,
        model=model,
        tokenizer=tokenizer,
        modal='audio' if args.modal_type == "a" else "video",
        do_sample=False,
    )

    print(output)


if __name__ == "__main__":
    parser = argparse.ArgumentParser()

    parser.add_argument('--model-path', help='', , required=False, default='DAMO-NLP-SG/VideoLLaMA2.1-7B-AV')
    parser.add_argument('--modal-type', choices=["a", "v", "av"], help='', required=True)
    args = parser.parse_args()

    inference(args)

bibtex
@article{damonlpsg2024videollama2,
  title={VideoLLaMA 2: Advancing Spatial-Temporal Modeling and Audio Understanding in Video-LLMs},
  author={Cheng, Zesen and Leng, Sicong and Zhang, Hang and Xin, Yifei and Li, Xin and Chen, Guanzheng and Zhu, Yongxin and Zhang, Wenqi and Luo, Ziyang and Zhao, Deli and Bing, Lidong},
  journal={arXiv preprint arXiv:2406.07476},
  year={2024},
  url = {https://arxiv.org/abs/2406.07476}
}

@article{damonlpsg2023videollama,
  title = {Video-LLaMA: An Instruction-tuned Audio-Visual Language Model for Video Understanding},
  author = {Zhang, Hang and Li, Xin and Bing, Lidong},
  journal = {arXiv preprint arXiv:2306.02858},
  year = {2023},
  url = {https://arxiv.org/abs/2306.02858}
}