Support Multi/InfiniteTalk (#10179)

* re-init

* Update model_multitalk.py

* whitespace...

* Update model_multitalk.py

* remove print

* this is redundant

* remove import

* Restore preview functionality

* Move block_idx to transformer_options

* Remove LoopingSamplerCustomAdvanced

* Remove looping functionality, keep extension functionality

* Update model_multitalk.py

* Handle ref_attn_mask with separate patch to avoid having to always return q and k from self_attn

* Chunk attention map calculation for multiple speakers to reduce peak VRAM usage

* Update model_multitalk.py

* Add ModelPatch type back

* Fix for latest upstream

* Use DynamicCombo for cleaner node

Basically just so that single_speaker mode hides mask inputs and 2nd audio input

* Update nodes_wan.py

comfy_extras/nodes_model_patch.py

@@ -7,6 +7,7 @@ import comfy.model_management
 import comfy.ldm.common_dit
 import comfy.latent_formats
 import comfy.ldm.lumina.controlnet
+from comfy.ldm.wan.model_multitalk import WanMultiTalkAttentionBlock, MultiTalkAudioProjModel
 
 
 class BlockWiseControlBlock(torch.nn.Module):
@@ -257,6 +258,14 @@ class ModelPatchLoader:
                     if torch.count_nonzero(ref_weight) == 0:
                         config['broken'] = True
             model = comfy.ldm.lumina.controlnet.ZImage_Control(device=comfy.model_management.unet_offload_device(), dtype=dtype, operations=comfy.ops.manual_cast, **config)
+        elif "audio_proj.proj1.weight" in sd:
+            model = MultiTalkModelPatch(
+                    audio_window=5, context_tokens=32, vae_scale=4,
+                    in_dim=sd["blocks.0.audio_cross_attn.proj.weight"].shape[0],
+                    intermediate_dim=sd["audio_proj.proj1.weight"].shape[0],
+                    out_dim=sd["audio_proj.norm.weight"].shape[0],
+                    device=comfy.model_management.unet_offload_device(),
+                    operations=comfy.ops.manual_cast)
 
         model.load_state_dict(sd)
         model = comfy.model_patcher.ModelPatcher(model, load_device=comfy.model_management.get_torch_device(), offload_device=comfy.model_management.unet_offload_device())
@@ -524,6 +533,38 @@ class USOStyleReference:
         return (model_patched,)
 
 
+class MultiTalkModelPatch(torch.nn.Module):
+    def __init__(
+        self,
+        audio_window: int = 5,
+        intermediate_dim: int = 512,
+        in_dim: int = 5120,
+        out_dim: int = 768,
+        context_tokens: int = 32,
+        vae_scale: int = 4,
+        num_layers: int = 40,
+
+        device=None, dtype=None, operations=None
+    ):
+        super().__init__()
+        self.audio_proj = MultiTalkAudioProjModel(
+                seq_len=audio_window,
+                seq_len_vf=audio_window+vae_scale-1,
+                intermediate_dim=intermediate_dim,
+                out_dim=out_dim,
+                context_tokens=context_tokens,
+                device=device,
+                dtype=dtype,
+                operations=operations
+        )
+        self.blocks = torch.nn.ModuleList(
+            [
+                WanMultiTalkAttentionBlock(in_dim, out_dim, device=device, dtype=dtype, operations=operations)
+                for _ in range(num_layers)
+            ]
+        )
+
+
 NODE_CLASS_MAPPINGS = {
     "ModelPatchLoader": ModelPatchLoader,
     "QwenImageDiffsynthControlnet": QwenImageDiffsynthControlnet,