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Fix batch size calculation in Wan VACE pipeline for precomputed embeddings #386

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copybara-service merged 1 commit into from
Apr 21, 2026
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Fix batch size calculation in Wan VACE pipeline for precomputed embeddings #386

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2 changes: 1 addition & 1 deletion src/maxdiffusion/pipelines/wan/wan_vace_pipeline_2_1.py
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Original file line number Diff line number Diff line change
Expand Up @@ -562,7 +562,6 @@ def __call__(
if prompt is not None and isinstance(prompt, str):
prompt = [prompt]

batch_size = len(prompt)
if num_videos_per_prompt != 1:
raise ValueError("Generating multiple videos per prompt is not yet supported. This may be supported in the future.")

Expand All @@ -573,6 +572,7 @@ def __call__(
prompt_embeds=prompt_embeds,
negative_prompt_embeds=negative_prompt_embeds,
)
batch_size = len(prompt_embeds)

transformer_dtype = self.transformer.proj_out.bias.dtype
vace_layers = self.transformer.config.vace_layers
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