ot provided, negative_prompt_embeds are generated from the negative_prompt input argument.
ip_adapter_image — (PipelineImageInput, optional):
Optional image input to work with IP Adapters.   output_type (str, optional, defaults to "pil") —
The output format of the generated video. Choose between torch.FloatTensor, PIL.Image or
np.array.   return_dict (bool, optional, defaults to True) —
Whether or not to return a TextToVideoSDPipelineOutput ins