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diffsynth/data/__init__.py

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+from .video import VideoData, save_video, save_frames

diffsynth/data/simple_text_image.py

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+import torch, os, torchvision
+from torchvision import transforms
+import pandas as pd
+from PIL import Image
+
+
+
+class TextImageDataset(torch.utils.data.Dataset):
+    def __init__(self, dataset_path, steps_per_epoch=10000, height=1024, width=1024, center_crop=True, random_flip=False):
+        self.steps_per_epoch = steps_per_epoch
+        metadata = pd.read_csv(os.path.join(dataset_path, "train/metadata.csv"))
+        self.path = [os.path.join(dataset_path, "train", file_name) for file_name in metadata["file_name"]]
+        self.text = metadata["text"].to_list()
+        self.height = height
+        self.width = width
+        self.image_processor = transforms.Compose(
+            [
+                transforms.CenterCrop((height, width)) if center_crop else transforms.RandomCrop((height, width)),
+                transforms.RandomHorizontalFlip() if random_flip else transforms.Lambda(lambda x: x),
+                transforms.ToTensor(),
+                transforms.Normalize([0.5], [0.5]),
+            ]
+        )
+
+
+    def __getitem__(self, index):
+        data_id = torch.randint(0, len(self.path), (1,))[0]
+        data_id = (data_id + index) % len(self.path) # For fixed seed.
+        text = self.text[data_id]
+        image = Image.open(self.path[data_id]).convert("RGB")
+        target_height, target_width = self.height, self.width
+        width, height = image.size
+        scale = max(target_width / width, target_height / height)
+        shape = [round(height*scale),round(width*scale)]
+        image = torchvision.transforms.functional.resize(image,shape,interpolation=transforms.InterpolationMode.BILINEAR)
+        image = self.image_processor(image)
+        return {"text": text, "image": image}
+
+
+    def __len__(self):
+        return self.steps_per_epoch

diffsynth/data/video.py

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+import imageio, os
+import numpy as np
+from PIL import Image
+from tqdm import tqdm
+
+
+class LowMemoryVideo:
+    def __init__(self, file_name):
+        self.reader = imageio.get_reader(file_name)
+    
+    def __len__(self):
+        return self.reader.count_frames()
+
+    def __getitem__(self, item):
+        return Image.fromarray(np.array(self.reader.get_data(item))).convert("RGB")
+
+    def __del__(self):
+        self.reader.close()
+
+
+def split_file_name(file_name):
+    result = []
+    number = -1
+    for i in file_name:
+        if ord(i)>=ord("0") and ord(i)<=ord("9"):
+            if number == -1:
+                number = 0
+            number = number*10 + ord(i) - ord("0")
+        else:
+            if number != -1:
+                result.append(number)
+                number = -1
+            result.append(i)
+    if number != -1:
+        result.append(number)
+    result = tuple(result)
+    return result
+
+
+def search_for_images(folder):
+    file_list = [i for i in os.listdir(folder) if i.endswith(".jpg") or i.endswith(".png")]
+    file_list = [(split_file_name(file_name), file_name) for file_name in file_list]
+    file_list = [i[1] for i in sorted(file_list)]
+    file_list = [os.path.join(folder, i) for i in file_list]
+    return file_list
+
+
+class LowMemoryImageFolder:
+    def __init__(self, folder, file_list=None):
+        if file_list is None:
+            self.file_list = search_for_images(folder)
+        else:
+            self.file_list = [os.path.join(folder, file_name) for file_name in file_list]
+    
+    def __len__(self):
+        return len(self.file_list)
+
+    def __getitem__(self, item):
+        return Image.open(self.file_list[item]).convert("RGB")
+
+    def __del__(self):
+        pass
+
+
+def crop_and_resize(image, height, width):
+    image = np.array(image)
+    image_height, image_width, _ = image.shape
+    if image_height / image_width < height / width:
+        croped_width = int(image_height / height * width)
+        left = (image_width - croped_width) // 2
+        image = image[:, left: left+croped_width]
+        image = Image.fromarray(image).resize((width, height))
+    else:
+        croped_height = int(image_width / width * height)
+        left = (image_height - croped_height) // 2
+        image = image[left: left+croped_height, :]
+        image = Image.fromarray(image).resize((width, height))
+    return image
+
+
+class VideoData:
+    def __init__(self, video_file=None, image_folder=None, height=None, width=None, **kwargs):
+        if video_file is not None:
+            self.data_type = "video"
+            self.data = LowMemoryVideo(video_file, **kwargs)
+        elif image_folder is not None:
+            self.data_type = "images"
+            self.data = LowMemoryImageFolder(image_folder, **kwargs)
+        else:
+            raise ValueError("Cannot open video or image folder")
+        self.length = None
+        self.set_shape(height, width)
+
+    def raw_data(self):
+        frames = []
+        for i in range(self.__len__()):
+            frames.append(self.__getitem__(i))
+        return frames
+
+    def set_length(self, length):
+        self.length = length
+
+    def set_shape(self, height, width):
+        self.height = height
+        self.width = width
+
+    def __len__(self):
+        if self.length is None:
+            return len(self.data)
+        else:
+            return self.length
+
+    def shape(self):
+        if self.height is not None and self.width is not None:
+            return self.height, self.width
+        else:
+            height, width, _ = self.__getitem__(0).shape
+            return height, width
+
+    def __getitem__(self, item):
+        frame = self.data.__getitem__(item)
+        width, height = frame.size
+        if self.height is not None and self.width is not None:
+            if self.height != height or self.width != width:
+                frame = crop_and_resize(frame, self.height, self.width)
+        return frame
+
+    def __del__(self):
+        pass
+
+    def save_images(self, folder):
+        os.makedirs(folder, exist_ok=True)
+        for i in tqdm(range(self.__len__()), desc="Saving images"):
+            frame = self.__getitem__(i)
+            frame.save(os.path.join(folder, f"{i}.png"))
+
+
+def save_video(frames, save_path, fps, quality=9, ffmpeg_params=None):
+    writer = imageio.get_writer(save_path, fps=fps, quality=quality, ffmpeg_params=ffmpeg_params)
+    for frame in tqdm(frames, desc="Saving video"):
+        frame = np.array(frame)
+        writer.append_data(frame)
+    writer.close()
+
+def save_frames(frames, save_path):
+    os.makedirs(save_path, exist_ok=True)
+    for i, frame in enumerate(tqdm(frames, desc="Saving images")):
+        frame.save(os.path.join(save_path, f"{i}.png"))

diffsynth/distributed/xdit_context_parallel.py

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+import torch
+from typing import Optional
+from einops import rearrange
+from xfuser.core.distributed import (get_sequence_parallel_rank,
+                                     get_sequence_parallel_world_size,
+                                     get_sp_group)
+from xfuser.core.long_ctx_attention import xFuserLongContextAttention
+
+def sinusoidal_embedding_1d(dim, position):
+    sinusoid = torch.outer(position.type(torch.float64), torch.pow(
+        10000, -torch.arange(dim//2, dtype=torch.float64, device=position.device).div(dim//2)))
+    x = torch.cat([torch.cos(sinusoid), torch.sin(sinusoid)], dim=1)
+    return x.to(position.dtype)
+
+def pad_freqs(original_tensor, target_len):
+    seq_len, s1, s2 = original_tensor.shape
+    pad_size = target_len - seq_len
+    padding_tensor = torch.ones(
+        pad_size,
+        s1,
+        s2,
+        dtype=original_tensor.dtype,
+        device=original_tensor.device)
+    padded_tensor = torch.cat([original_tensor, padding_tensor], dim=0)
+    return padded_tensor
+    
+def rope_apply(x, freqs, num_heads):
+    x = rearrange(x, "b s (n d) -> b s n d", n=num_heads)
+    s_per_rank = x.shape[1]
+
+    x_out = torch.view_as_complex(x.to(torch.float64).reshape(
+        x.shape[0], x.shape[1], x.shape[2], -1, 2))
+
+    sp_size = get_sequence_parallel_world_size()
+    sp_rank = get_sequence_parallel_rank()
+    freqs = pad_freqs(freqs, s_per_rank * sp_size)
+    freqs_rank = freqs[(sp_rank * s_per_rank):((sp_rank + 1) * s_per_rank), :, :]
+
+    x_out = torch.view_as_real(x_out * freqs_rank).flatten(2)
+    return x_out.to(x.dtype)
+
+def usp_dit_forward(self,
+            x: torch.Tensor,
+            timestep: torch.Tensor,
+            context: torch.Tensor,
+            clip_feature: Optional[torch.Tensor] = None,
+            y: Optional[torch.Tensor] = None,
+            use_gradient_checkpointing: bool = False,
+            use_gradient_checkpointing_offload: bool = False,
+            **kwargs,
+            ):
+    t = self.time_embedding(
+        sinusoidal_embedding_1d(self.freq_dim, timestep))
+    t_mod = self.time_projection(t).unflatten(1, (6, self.dim))
+    context = self.text_embedding(context)
+    
+    if self.has_image_input:
+        x = torch.cat([x, y], dim=1)  # (b, c_x + c_y, f, h, w)
+        clip_embdding = self.img_emb(clip_feature)
+        context = torch.cat([clip_embdding, context], dim=1)
+    
+    x, (f, h, w) = self.patchify(x)
+    
+    freqs = torch.cat([
+        self.freqs[0][:f].view(f, 1, 1, -1).expand(f, h, w, -1),
+        self.freqs[1][:h].view(1, h, 1, -1).expand(f, h, w, -1),
+        self.freqs[2][:w].view(1, 1, w, -1).expand(f, h, w, -1)
+    ], dim=-1).reshape(f * h * w, 1, -1).to(x.device)
+    
+    def create_custom_forward(module):
+        def custom_forward(*inputs):
+            return module(*inputs)
+        return custom_forward
+
+    # Context Parallel
+    x = torch.chunk(
+        x, get_sequence_parallel_world_size(),
+        dim=1)[get_sequence_parallel_rank()]
+
+    for block in self.blocks:
+        if self.training and use_gradient_checkpointing:
+            if use_gradient_checkpointing_offload:
+                with torch.autograd.graph.save_on_cpu():
+                    x = torch.utils.checkpoint.checkpoint(
+                        create_custom_forward(block),
+                        x, context, t_mod, freqs,
+                        use_reentrant=False,
+                    )
+            else:
+                x = torch.utils.checkpoint.checkpoint(
+                    create_custom_forward(block),
+                    x, context, t_mod, freqs,
+                    use_reentrant=False,
+                )
+        else:
+            x = block(x, context, t_mod, freqs)
+
+    x = self.head(x, t)
+
+    # Context Parallel
+    x = get_sp_group().all_gather(x, dim=1)
+
+    # unpatchify
+    x = self.unpatchify(x, (f, h, w))
+    return x
+
+
+def usp_attn_forward(self, x, freqs):
+    q = self.norm_q(self.q(x))
+    k = self.norm_k(self.k(x))
+    v = self.v(x)
+
+    q = rope_apply(q, freqs, self.num_heads)
+    k = rope_apply(k, freqs, self.num_heads)
+    q = rearrange(q, "b s (n d) -> b s n d", n=self.num_heads)
+    k = rearrange(k, "b s (n d) -> b s n d", n=self.num_heads)
+    v = rearrange(v, "b s (n d) -> b s n d", n=self.num_heads)
+
+    x = xFuserLongContextAttention()(
+        None,
+        query=q,
+        key=k,
+        value=v,
+    )
+    x = x.flatten(2)
+
+    del q, k, v
+    torch.cuda.empty_cache()
+    return self.o(x)

diffsynth/pipelines/__init__.py

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+from .sd_image import SDImagePipeline
+from .sd_video import SDVideoPipeline
+from .sdxl_image import SDXLImagePipeline
+from .sdxl_video import SDXLVideoPipeline
+from .sd3_image import SD3ImagePipeline
+from .hunyuan_image import HunyuanDiTImagePipeline
+from .svd_video import SVDVideoPipeline
+from .flux_image import FluxImagePipeline
+from .cog_video import CogVideoPipeline
+from .omnigen_image import OmnigenImagePipeline
+from .pipeline_runner import SDVideoPipelineRunner
+from .hunyuan_video import HunyuanVideoPipeline
+from .step_video import StepVideoPipeline
+from .wan_video import WanVideoPipeline, WanUniAnimateVideoPipeline, WanRepalceAnyoneVideoPipeline, WanUniAnimateLongVideoPipeline
+KolorsImagePipeline = SDXLImagePipeline

diffsynth/pipelines/cog_video.py

@@ -0,0 +1,135 @@
+from ..models import ModelManager, FluxTextEncoder2, CogDiT, CogVAEEncoder, CogVAEDecoder
+from ..prompters import CogPrompter
+from ..schedulers import EnhancedDDIMScheduler
+from .base import BasePipeline
+import torch
+from tqdm import tqdm
+from PIL import Image
+import numpy as np
+from einops import rearrange
+
+
+
+class CogVideoPipeline(BasePipeline):
+
+    def __init__(self, device="cuda", torch_dtype=torch.float16):
+        super().__init__(device=device, torch_dtype=torch_dtype, height_division_factor=16, width_division_factor=16)
+        self.scheduler = EnhancedDDIMScheduler(rescale_zero_terminal_snr=True, prediction_type="v_prediction")
+        self.prompter = CogPrompter()
+        # models
+        self.text_encoder: FluxTextEncoder2 = None
+        self.dit: CogDiT = None
+        self.vae_encoder: CogVAEEncoder = None
+        self.vae_decoder: CogVAEDecoder = None
+    
+
+    def fetch_models(self, model_manager: ModelManager, prompt_refiner_classes=[]):
+        self.text_encoder = model_manager.fetch_model("flux_text_encoder_2")
+        self.dit = model_manager.fetch_model("cog_dit")
+        self.vae_encoder = model_manager.fetch_model("cog_vae_encoder")
+        self.vae_decoder = model_manager.fetch_model("cog_vae_decoder")
+        self.prompter.fetch_models(self.text_encoder)
+        self.prompter.load_prompt_refiners(model_manager, prompt_refiner_classes)
+
+
+    @staticmethod
+    def from_model_manager(model_manager: ModelManager, prompt_refiner_classes=[]):
+        pipe = CogVideoPipeline(
+            device=model_manager.device,
+            torch_dtype=model_manager.torch_dtype
+        )
+        pipe.fetch_models(model_manager, prompt_refiner_classes)
+        return pipe
+    
+
+    def tensor2video(self, frames):
+        frames = rearrange(frames, "C T H W -> T H W C")
+        frames = ((frames.float() + 1) * 127.5).clip(0, 255).cpu().numpy().astype(np.uint8)
+        frames = [Image.fromarray(frame) for frame in frames]
+        return frames
+    
+
+    def encode_prompt(self, prompt, positive=True):
+        prompt_emb = self.prompter.encode_prompt(prompt, device=self.device, positive=positive)
+        return {"prompt_emb": prompt_emb}
+    
+
+    def prepare_extra_input(self, latents):
+        return {"image_rotary_emb": self.dit.prepare_rotary_positional_embeddings(latents.shape[3], latents.shape[4], latents.shape[2], device=self.device)}
+
+
+    @torch.no_grad()
+    def __call__(
+        self,
+        prompt,
+        negative_prompt="",
+        input_video=None,
+        cfg_scale=7.0,
+        denoising_strength=1.0,
+        num_frames=49,
+        height=480,
+        width=720,
+        num_inference_steps=20,
+        tiled=False,
+        tile_size=(60, 90),
+        tile_stride=(30, 45),
+        seed=None,
+        progress_bar_cmd=tqdm,
+        progress_bar_st=None,
+    ):
+        height, width = self.check_resize_height_width(height, width)
+        
+        # Tiler parameters
+        tiler_kwargs = {"tiled": tiled, "tile_size": tile_size, "tile_stride": tile_stride}
+
+        # Prepare scheduler
+        self.scheduler.set_timesteps(num_inference_steps, denoising_strength=denoising_strength)
+
+        # Prepare latent tensors
+        noise = self.generate_noise((1, 16, num_frames // 4 + 1, height//8, width//8), seed=seed, device="cpu", dtype=self.torch_dtype)
+        
+        if denoising_strength == 1.0:
+            latents = noise.clone()
+        else:
+            input_video = self.preprocess_images(input_video)
+            input_video = torch.stack(input_video, dim=2)
+            latents = self.vae_encoder.encode_video(input_video, **tiler_kwargs, progress_bar=progress_bar_cmd).to(dtype=self.torch_dtype)
+            latents = self.scheduler.add_noise(latents, noise, self.scheduler.timesteps[0])
+        if not tiled: latents = latents.to(self.device)
+
+        # Encode prompt
+        prompt_emb_posi = self.encode_prompt(prompt, positive=True)
+        if cfg_scale != 1.0:
+            prompt_emb_nega = self.encode_prompt(negative_prompt, positive=False)
+
+        # Extra input
+        extra_input = self.prepare_extra_input(latents)
+
+        # Denoise
+        for progress_id, timestep in enumerate(progress_bar_cmd(self.scheduler.timesteps)):
+            timestep = timestep.unsqueeze(0).to(self.device)
+
+            # Classifier-free guidance
+            noise_pred_posi = self.dit(
+                latents, timestep=timestep, **prompt_emb_posi, **tiler_kwargs, **extra_input
+            )
+            if cfg_scale != 1.0:
+                noise_pred_nega = self.dit(
+                    latents, timestep=timestep, **prompt_emb_nega, **tiler_kwargs, **extra_input
+                )
+                noise_pred = noise_pred_nega + cfg_scale * (noise_pred_posi - noise_pred_nega)
+            else:
+                noise_pred = noise_pred_posi
+
+            # DDIM
+            latents = self.scheduler.step(noise_pred, self.scheduler.timesteps[progress_id], latents)
+            
+            # Update progress bar
+            if progress_bar_st is not None:
+                progress_bar_st.progress(progress_id / len(self.scheduler.timesteps))
+
+        # Decode image
+        video = self.vae_decoder.decode_video(latents.to("cpu"), **tiler_kwargs, progress_bar=progress_bar_cmd)
+        video = self.tensor2video(video[0])
+
+        return video

diffsynth/pipelines/dancer.py

@@ -0,0 +1,236 @@
+import torch
+from ..models import SDUNet, SDMotionModel, SDXLUNet, SDXLMotionModel
+from ..models.sd_unet import PushBlock, PopBlock
+from ..controlnets import MultiControlNetManager
+
+
+def lets_dance(
+    unet: SDUNet,
+    motion_modules: SDMotionModel = None,
+    controlnet: MultiControlNetManager = None,
+    sample = None,
+    timestep = None,
+    encoder_hidden_states = None,
+    ipadapter_kwargs_list = {},
+    controlnet_frames = None,
+    unet_batch_size = 1,
+    controlnet_batch_size = 1,
+    cross_frame_attention = False,
+    tiled=False,
+    tile_size=64,
+    tile_stride=32,
+    device = "cuda",
+    vram_limit_level = 0,
+):
+    # 0. Text embedding alignment (only for video processing)
+    if encoder_hidden_states.shape[0] != sample.shape[0]:
+        encoder_hidden_states = encoder_hidden_states.repeat(sample.shape[0], 1, 1, 1)
+
+    # 1. ControlNet
+    #     This part will be repeated on overlapping frames if animatediff_batch_size > animatediff_stride.
+    #     I leave it here because I intend to do something interesting on the ControlNets.
+    controlnet_insert_block_id = 30
+    if controlnet is not None and controlnet_frames is not None:
+        res_stacks = []
+        # process controlnet frames with batch
+        for batch_id in range(0, sample.shape[0], controlnet_batch_size):
+            batch_id_ = min(batch_id + controlnet_batch_size, sample.shape[0])
+            res_stack = controlnet(
+                sample[batch_id: batch_id_],
+                timestep,
+                encoder_hidden_states[batch_id: batch_id_],
+                controlnet_frames[:, batch_id: batch_id_],
+                tiled=tiled, tile_size=tile_size, tile_stride=tile_stride
+            )
+            if vram_limit_level >= 1:
+                res_stack = [res.cpu() for res in res_stack]
+            res_stacks.append(res_stack)
+        # concat the residual
+        additional_res_stack = []
+        for i in range(len(res_stacks[0])):
+            res = torch.concat([res_stack[i] for res_stack in res_stacks], dim=0)
+            additional_res_stack.append(res)
+    else:
+        additional_res_stack = None
+
+    # 2. time
+    time_emb = unet.time_proj(timestep).to(sample.dtype)
+    time_emb = unet.time_embedding(time_emb)
+
+    # 3. pre-process
+    height, width = sample.shape[2], sample.shape[3]
+    hidden_states = unet.conv_in(sample)
+    text_emb = encoder_hidden_states
+    res_stack = [hidden_states.cpu() if vram_limit_level>=1 else hidden_states]
+
+    # 4. blocks
+    for block_id, block in enumerate(unet.blocks):
+        # 4.1 UNet
+        if isinstance(block, PushBlock):
+            hidden_states, time_emb, text_emb, res_stack = block(hidden_states, time_emb, text_emb, res_stack)
+            if vram_limit_level>=1:
+                res_stack[-1] = res_stack[-1].cpu()
+        elif isinstance(block, PopBlock):
+            if vram_limit_level>=1:
+                res_stack[-1] = res_stack[-1].to(device)
+            hidden_states, time_emb, text_emb, res_stack = block(hidden_states, time_emb, text_emb, res_stack)
+        else:
+            hidden_states_input = hidden_states
+            hidden_states_output = []
+            for batch_id in range(0, sample.shape[0], unet_batch_size):
+                batch_id_ = min(batch_id + unet_batch_size, sample.shape[0])
+                hidden_states, _, _, _ = block(
+                    hidden_states_input[batch_id: batch_id_],
+                    time_emb,
+                    text_emb[batch_id: batch_id_],
+                    res_stack,
+                    cross_frame_attention=cross_frame_attention,
+                    ipadapter_kwargs_list=ipadapter_kwargs_list.get(block_id, {}),
+                    tiled=tiled, tile_size=tile_size, tile_stride=tile_stride
+                )
+                hidden_states_output.append(hidden_states)
+            hidden_states = torch.concat(hidden_states_output, dim=0)
+        # 4.2 AnimateDiff
+        if motion_modules is not None:
+            if block_id in motion_modules.call_block_id:
+                motion_module_id = motion_modules.call_block_id[block_id]
+                hidden_states, time_emb, text_emb, res_stack = motion_modules.motion_modules[motion_module_id](
+                    hidden_states, time_emb, text_emb, res_stack,
+                    batch_size=1
+                )
+        # 4.3 ControlNet
+        if block_id == controlnet_insert_block_id and additional_res_stack is not None:
+            hidden_states += additional_res_stack.pop().to(device)
+            if vram_limit_level>=1:
+                res_stack = [(res.to(device) + additional_res.to(device)).cpu() for res, additional_res in zip(res_stack, additional_res_stack)]
+            else:
+                res_stack = [res + additional_res for res, additional_res in zip(res_stack, additional_res_stack)]
+    
+    # 5. output
+    hidden_states = unet.conv_norm_out(hidden_states)
+    hidden_states = unet.conv_act(hidden_states)
+    hidden_states = unet.conv_out(hidden_states)
+
+    return hidden_states
+
+
+
+
+def lets_dance_xl(
+    unet: SDXLUNet,
+    motion_modules: SDXLMotionModel = None,
+    controlnet: MultiControlNetManager = None,
+    sample = None,
+    add_time_id = None,
+    add_text_embeds = None,
+    timestep = None,
+    encoder_hidden_states = None,
+    ipadapter_kwargs_list = {},
+    controlnet_frames = None,
+    unet_batch_size = 1,
+    controlnet_batch_size = 1,
+    cross_frame_attention = False,
+    tiled=False,
+    tile_size=64,
+    tile_stride=32,
+    device = "cuda",
+    vram_limit_level = 0,
+):
+    # 0. Text embedding alignment (only for video processing)
+    if encoder_hidden_states.shape[0] != sample.shape[0]:
+        encoder_hidden_states = encoder_hidden_states.repeat(sample.shape[0], 1, 1, 1)
+    if add_text_embeds.shape[0] != sample.shape[0]:
+        add_text_embeds = add_text_embeds.repeat(sample.shape[0], 1)
+    
+    # 1. ControlNet
+    controlnet_insert_block_id = 22
+    if controlnet is not None and controlnet_frames is not None:
+        res_stacks = []
+        # process controlnet frames with batch
+        for batch_id in range(0, sample.shape[0], controlnet_batch_size):
+            batch_id_ = min(batch_id + controlnet_batch_size, sample.shape[0])
+            res_stack = controlnet(
+                sample[batch_id: batch_id_],
+                timestep,
+                encoder_hidden_states[batch_id: batch_id_],
+                controlnet_frames[:, batch_id: batch_id_],
+                add_time_id=add_time_id,
+                add_text_embeds=add_text_embeds,
+                tiled=tiled, tile_size=tile_size, tile_stride=tile_stride,
+                unet=unet, # for Kolors, some modules in ControlNets will be replaced.
+            )
+            if vram_limit_level >= 1:
+                res_stack = [res.cpu() for res in res_stack]
+            res_stacks.append(res_stack)
+        # concat the residual
+        additional_res_stack = []
+        for i in range(len(res_stacks[0])):
+            res = torch.concat([res_stack[i] for res_stack in res_stacks], dim=0)
+            additional_res_stack.append(res)
+    else:
+        additional_res_stack = None
+
+    # 2. time
+    t_emb = unet.time_proj(timestep).to(sample.dtype)
+    t_emb = unet.time_embedding(t_emb)
+
+    time_embeds = unet.add_time_proj(add_time_id)
+    time_embeds = time_embeds.reshape((add_text_embeds.shape[0], -1))
+    add_embeds = torch.concat([add_text_embeds, time_embeds], dim=-1)
+    add_embeds = add_embeds.to(sample.dtype)
+    add_embeds = unet.add_time_embedding(add_embeds)
+
+    time_emb = t_emb + add_embeds
+
+    # 3. pre-process
+    height, width = sample.shape[2], sample.shape[3]
+    hidden_states = unet.conv_in(sample)
+    text_emb = encoder_hidden_states if unet.text_intermediate_proj is None else unet.text_intermediate_proj(encoder_hidden_states)
+    res_stack = [hidden_states]
+
+    # 4. blocks
+    for block_id, block in enumerate(unet.blocks):
+        # 4.1 UNet
+        if isinstance(block, PushBlock):
+            hidden_states, time_emb, text_emb, res_stack = block(hidden_states, time_emb, text_emb, res_stack)
+            if vram_limit_level>=1:
+                res_stack[-1] = res_stack[-1].cpu()
+        elif isinstance(block, PopBlock):
+            if vram_limit_level>=1:
+                res_stack[-1] = res_stack[-1].to(device)
+            hidden_states, time_emb, text_emb, res_stack = block(hidden_states, time_emb, text_emb, res_stack)
+        else:
+            hidden_states_input = hidden_states
+            hidden_states_output = []
+            for batch_id in range(0, sample.shape[0], unet_batch_size):
+                batch_id_ = min(batch_id + unet_batch_size, sample.shape[0])
+                hidden_states, _, _, _ = block(
+                    hidden_states_input[batch_id: batch_id_],
+                    time_emb[batch_id: batch_id_],
+                    text_emb[batch_id: batch_id_],
+                    res_stack,
+                    cross_frame_attention=cross_frame_attention,
+                    ipadapter_kwargs_list=ipadapter_kwargs_list.get(block_id, {}),
+                    tiled=tiled, tile_size=tile_size, tile_stride=tile_stride,
+                )
+                hidden_states_output.append(hidden_states)
+            hidden_states = torch.concat(hidden_states_output, dim=0)
+        # 4.2 AnimateDiff
+        if motion_modules is not None:
+            if block_id in motion_modules.call_block_id:
+                motion_module_id = motion_modules.call_block_id[block_id]
+                hidden_states, time_emb, text_emb, res_stack = motion_modules.motion_modules[motion_module_id](
+                    hidden_states, time_emb, text_emb, res_stack,
+                    batch_size=1
+                )
+        # 4.3 ControlNet
+        if block_id == controlnet_insert_block_id and additional_res_stack is not None:
+            hidden_states += additional_res_stack.pop().to(device)
+            res_stack = [res + additional_res for res, additional_res in zip(res_stack, additional_res_stack)]
+
+    # 5. output
+    hidden_states = unet.conv_norm_out(hidden_states)
+    hidden_states = unet.conv_act(hidden_states)
+    hidden_states = unet.conv_out(hidden_states)
+
+    return hidden_states

diffsynth/pipelines/flux_image.py

@@ -0,0 +1,646 @@
+from ..models import ModelManager, FluxDiT, SD3TextEncoder1, FluxTextEncoder2, FluxVAEDecoder, FluxVAEEncoder, FluxIpAdapter
+from ..controlnets import FluxMultiControlNetManager, ControlNetUnit, ControlNetConfigUnit, Annotator
+from ..prompters import FluxPrompter
+from ..schedulers import FlowMatchScheduler
+from .base import BasePipeline
+from typing import List
+import torch
+from tqdm import tqdm
+import numpy as np
+from PIL import Image
+from ..models.tiler import FastTileWorker
+from transformers import SiglipVisionModel
+from copy import deepcopy
+from transformers.models.t5.modeling_t5 import T5LayerNorm, T5DenseActDense, T5DenseGatedActDense
+from ..models.flux_dit import RMSNorm
+from ..vram_management import enable_vram_management, AutoWrappedModule, AutoWrappedLinear
+
+
+class FluxImagePipeline(BasePipeline):
+
+    def __init__(self, device="cuda", torch_dtype=torch.float16):
+        super().__init__(device=device, torch_dtype=torch_dtype, height_division_factor=16, width_division_factor=16)
+        self.scheduler = FlowMatchScheduler()
+        self.prompter = FluxPrompter()
+        # models
+        self.text_encoder_1: SD3TextEncoder1 = None
+        self.text_encoder_2: FluxTextEncoder2 = None
+        self.dit: FluxDiT = None
+        self.vae_decoder: FluxVAEDecoder = None
+        self.vae_encoder: FluxVAEEncoder = None
+        self.controlnet: FluxMultiControlNetManager = None
+        self.ipadapter: FluxIpAdapter = None
+        self.ipadapter_image_encoder: SiglipVisionModel = None
+        self.model_names = ['text_encoder_1', 'text_encoder_2', 'dit', 'vae_decoder', 'vae_encoder', 'controlnet', 'ipadapter', 'ipadapter_image_encoder']
+
+
+    def enable_vram_management(self, num_persistent_param_in_dit=None):
+        dtype = next(iter(self.text_encoder_1.parameters())).dtype
+        enable_vram_management(
+            self.text_encoder_1,
+            module_map = {
+                torch.nn.Linear: AutoWrappedLinear,
+                torch.nn.Embedding: AutoWrappedModule,
+                torch.nn.LayerNorm: AutoWrappedModule,
+            },
+            module_config = dict(
+                offload_dtype=dtype,
+                offload_device="cpu",
+                onload_dtype=dtype,
+                onload_device="cpu",
+                computation_dtype=self.torch_dtype,
+                computation_device=self.device,
+            ),
+        )
+        dtype = next(iter(self.text_encoder_2.parameters())).dtype
+        enable_vram_management(
+            self.text_encoder_2,
+            module_map = {
+                torch.nn.Linear: AutoWrappedLinear,
+                torch.nn.Embedding: AutoWrappedModule,
+                T5LayerNorm: AutoWrappedModule,
+                T5DenseActDense: AutoWrappedModule,
+                T5DenseGatedActDense: AutoWrappedModule,
+            },
+            module_config = dict(
+                offload_dtype=dtype,
+                offload_device="cpu",
+                onload_dtype=dtype,
+                onload_device="cpu",
+                computation_dtype=self.torch_dtype,
+                computation_device=self.device,
+            ),
+        )
+        dtype = next(iter(self.dit.parameters())).dtype
+        enable_vram_management(
+            self.dit,
+            module_map = {
+                RMSNorm: AutoWrappedModule,
+                torch.nn.Linear: AutoWrappedLinear,
+            },
+            module_config = dict(
+                offload_dtype=dtype,
+                offload_device="cpu",
+                onload_dtype=dtype,
+                onload_device="cuda",
+                computation_dtype=self.torch_dtype,
+                computation_device=self.device,
+            ),
+            max_num_param=num_persistent_param_in_dit,
+            overflow_module_config = dict(
+                offload_dtype=dtype,
+                offload_device="cpu",
+                onload_dtype=dtype,
+                onload_device="cpu",
+                computation_dtype=self.torch_dtype,
+                computation_device=self.device,
+            ),
+        )
+        dtype = next(iter(self.vae_decoder.parameters())).dtype
+        enable_vram_management(
+            self.vae_decoder,
+            module_map = {
+                torch.nn.Linear: AutoWrappedLinear,
+                torch.nn.Conv2d: AutoWrappedModule,
+                torch.nn.GroupNorm: AutoWrappedModule,
+            },
+            module_config = dict(
+                offload_dtype=dtype,
+                offload_device="cpu",
+                onload_dtype=dtype,
+                onload_device="cpu",
+                computation_dtype=self.torch_dtype,
+                computation_device=self.device,
+            ),
+        )
+        dtype = next(iter(self.vae_encoder.parameters())).dtype
+        enable_vram_management(
+            self.vae_encoder,
+            module_map = {
+                torch.nn.Linear: AutoWrappedLinear,
+                torch.nn.Conv2d: AutoWrappedModule,
+                torch.nn.GroupNorm: AutoWrappedModule,
+            },
+            module_config = dict(
+                offload_dtype=dtype,
+                offload_device="cpu",
+                onload_dtype=dtype,
+                onload_device="cpu",
+                computation_dtype=self.torch_dtype,
+                computation_device=self.device,
+            ),
+        )
+        self.enable_cpu_offload()
+
+
+    def denoising_model(self):
+        return self.dit
+
+
+    def fetch_models(self, model_manager: ModelManager, controlnet_config_units: List[ControlNetConfigUnit]=[], prompt_refiner_classes=[], prompt_extender_classes=[]):
+        self.text_encoder_1 = model_manager.fetch_model("sd3_text_encoder_1")
+        self.text_encoder_2 = model_manager.fetch_model("flux_text_encoder_2")
+        self.dit = model_manager.fetch_model("flux_dit")
+        self.vae_decoder = model_manager.fetch_model("flux_vae_decoder")
+        self.vae_encoder = model_manager.fetch_model("flux_vae_encoder")
+        self.prompter.fetch_models(self.text_encoder_1, self.text_encoder_2)
+        self.prompter.load_prompt_refiners(model_manager, prompt_refiner_classes)
+        self.prompter.load_prompt_extenders(model_manager, prompt_extender_classes)
+
+        # ControlNets
+        controlnet_units = []
+        for config in controlnet_config_units:
+            controlnet_unit = ControlNetUnit(
+                Annotator(config.processor_id, device=self.device, skip_processor=config.skip_processor),
+                model_manager.fetch_model("flux_controlnet", config.model_path),
+                config.scale
+            )
+            controlnet_units.append(controlnet_unit)
+        self.controlnet = FluxMultiControlNetManager(controlnet_units)
+
+        # IP-Adapters
+        self.ipadapter = model_manager.fetch_model("flux_ipadapter")
+        self.ipadapter_image_encoder = model_manager.fetch_model("siglip_vision_model")
+
+
+    @staticmethod
+    def from_model_manager(model_manager: ModelManager, controlnet_config_units: List[ControlNetConfigUnit]=[], prompt_refiner_classes=[], prompt_extender_classes=[], device=None, torch_dtype=None):
+        pipe = FluxImagePipeline(
+            device=model_manager.device if device is None else device,
+            torch_dtype=model_manager.torch_dtype if torch_dtype is None else torch_dtype,
+        )
+        pipe.fetch_models(model_manager, controlnet_config_units, prompt_refiner_classes, prompt_extender_classes)
+        return pipe
+    
+
+    def encode_image(self, image, tiled=False, tile_size=64, tile_stride=32):
+        latents = self.vae_encoder(image, tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+        return latents
+    
+
+    def decode_image(self, latent, tiled=False, tile_size=64, tile_stride=32):
+        image = self.vae_decoder(latent.to(self.device), tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+        image = self.vae_output_to_image(image)
+        return image
+    
+
+    def encode_prompt(self, prompt, positive=True, t5_sequence_length=512):
+        prompt_emb, pooled_prompt_emb, text_ids = self.prompter.encode_prompt(
+            prompt, device=self.device, positive=positive, t5_sequence_length=t5_sequence_length
+        )
+        return {"prompt_emb": prompt_emb, "pooled_prompt_emb": pooled_prompt_emb, "text_ids": text_ids}
+    
+
+    def prepare_extra_input(self, latents=None, guidance=1.0):
+        latent_image_ids = self.dit.prepare_image_ids(latents)
+        guidance = torch.Tensor([guidance] * latents.shape[0]).to(device=latents.device, dtype=latents.dtype)
+        return {"image_ids": latent_image_ids, "guidance": guidance}
+    
+
+    def apply_controlnet_mask_on_latents(self, latents, mask):
+        mask = (self.preprocess_image(mask) + 1) / 2
+        mask = mask.mean(dim=1, keepdim=True)
+        mask = mask.to(dtype=self.torch_dtype, device=self.device)
+        mask = 1 - torch.nn.functional.interpolate(mask, size=latents.shape[-2:])
+        latents = torch.concat([latents, mask], dim=1)
+        return latents
+    
+
+    def apply_controlnet_mask_on_image(self, image, mask):
+        mask = mask.resize(image.size)
+        mask = self.preprocess_image(mask).mean(dim=[0, 1])
+        image = np.array(image)
+        image[mask > 0] = 0
+        image = Image.fromarray(image)
+        return image
+    
+
+    def prepare_controlnet_input(self, controlnet_image, controlnet_inpaint_mask, tiler_kwargs):
+        if isinstance(controlnet_image, Image.Image):
+            controlnet_image = [controlnet_image] * len(self.controlnet.processors)
+
+        controlnet_frames = []
+        for i in range(len(self.controlnet.processors)):
+            # image annotator
+            image = self.controlnet.process_image(controlnet_image[i], processor_id=i)[0]
+            if controlnet_inpaint_mask is not None and self.controlnet.processors[i].processor_id == "inpaint":
+                image = self.apply_controlnet_mask_on_image(image, controlnet_inpaint_mask)
+
+            # image to tensor
+            image = self.preprocess_image(image).to(device=self.device, dtype=self.torch_dtype)
+
+            # vae encoder
+            image = self.encode_image(image, **tiler_kwargs)
+            if controlnet_inpaint_mask is not None and self.controlnet.processors[i].processor_id == "inpaint":
+                image = self.apply_controlnet_mask_on_latents(image, controlnet_inpaint_mask)
+            
+            # store it
+            controlnet_frames.append(image)
+        return controlnet_frames
+
+
+    def prepare_ipadapter_inputs(self, images, height=384, width=384):
+        images = [image.convert("RGB").resize((width, height), resample=3) for image in images]
+        images = [self.preprocess_image(image).to(device=self.device, dtype=self.torch_dtype) for image in images]
+        return torch.cat(images, dim=0)
+
+
+    def inpaint_fusion(self, latents, inpaint_latents, pred_noise, fg_mask, bg_mask, progress_id, background_weight=0.):
+        # inpaint noise
+        inpaint_noise = (latents - inpaint_latents) / self.scheduler.sigmas[progress_id]
+        # merge noise
+        weight = torch.ones_like(inpaint_noise)
+        inpaint_noise[fg_mask] = pred_noise[fg_mask]
+        inpaint_noise[bg_mask] += pred_noise[bg_mask] * background_weight
+        weight[bg_mask] += background_weight
+        inpaint_noise /= weight
+        return inpaint_noise
+
+
+    def preprocess_masks(self, masks, height, width, dim):
+        out_masks = []
+        for mask in masks:
+            mask = self.preprocess_image(mask.resize((width, height), resample=Image.NEAREST)).mean(dim=1, keepdim=True) > 0
+            mask = mask.repeat(1, dim, 1, 1).to(device=self.device, dtype=self.torch_dtype)
+            out_masks.append(mask)
+        return out_masks
+
+
+    def prepare_entity_inputs(self, entity_prompts, entity_masks, width, height, t5_sequence_length=512, enable_eligen_inpaint=False):
+        fg_mask, bg_mask = None, None
+        if enable_eligen_inpaint:
+            masks_ = deepcopy(entity_masks)
+            fg_masks = torch.cat([self.preprocess_image(mask.resize((width//8, height//8))).mean(dim=1, keepdim=True) for mask in masks_])
+            fg_masks = (fg_masks > 0).float()
+            fg_mask = fg_masks.sum(dim=0, keepdim=True).repeat(1, 16, 1, 1) > 0
+            bg_mask = ~fg_mask
+        entity_masks = self.preprocess_masks(entity_masks, height//8, width//8, 1)
+        entity_masks = torch.cat(entity_masks, dim=0).unsqueeze(0) # b, n_mask, c, h, w
+        entity_prompts = self.encode_prompt(entity_prompts, t5_sequence_length=t5_sequence_length)['prompt_emb'].unsqueeze(0)
+        return entity_prompts, entity_masks, fg_mask, bg_mask
+
+
+    def prepare_latents(self, input_image, height, width, seed, tiled, tile_size, tile_stride):
+        if input_image is not None:
+            self.load_models_to_device(['vae_encoder'])
+            image = self.preprocess_image(input_image).to(device=self.device, dtype=self.torch_dtype)
+            input_latents = self.encode_image(image, tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+            noise = self.generate_noise((1, 16, height//8, width//8), seed=seed, device=self.device, dtype=self.torch_dtype)
+            latents = self.scheduler.add_noise(input_latents, noise, timestep=self.scheduler.timesteps[0])
+        else:
+            latents = self.generate_noise((1, 16, height//8, width//8), seed=seed, device=self.device, dtype=self.torch_dtype)
+            input_latents = None
+        return latents, input_latents
+
+
+    def prepare_ipadapter(self, ipadapter_images, ipadapter_scale):
+        if ipadapter_images is not None:
+            self.load_models_to_device(['ipadapter_image_encoder'])
+            ipadapter_images = self.prepare_ipadapter_inputs(ipadapter_images)
+            ipadapter_image_encoding = self.ipadapter_image_encoder(ipadapter_images).pooler_output
+            self.load_models_to_device(['ipadapter'])
+            ipadapter_kwargs_list_posi = {"ipadapter_kwargs_list": self.ipadapter(ipadapter_image_encoding, scale=ipadapter_scale)}
+            ipadapter_kwargs_list_nega = {"ipadapter_kwargs_list": self.ipadapter(torch.zeros_like(ipadapter_image_encoding))}
+        else:
+            ipadapter_kwargs_list_posi, ipadapter_kwargs_list_nega = {"ipadapter_kwargs_list": {}}, {"ipadapter_kwargs_list": {}}
+        return ipadapter_kwargs_list_posi, ipadapter_kwargs_list_nega
+
+
+    def prepare_controlnet(self, controlnet_image, masks, controlnet_inpaint_mask, tiler_kwargs, enable_controlnet_on_negative):
+        if controlnet_image is not None:
+            self.load_models_to_device(['vae_encoder'])
+            controlnet_kwargs_posi = {"controlnet_frames": self.prepare_controlnet_input(controlnet_image, controlnet_inpaint_mask, tiler_kwargs)}
+            if len(masks) > 0 and controlnet_inpaint_mask is not None:
+                print("The controlnet_inpaint_mask will be overridden by masks.")
+                local_controlnet_kwargs = [{"controlnet_frames": self.prepare_controlnet_input(controlnet_image, mask, tiler_kwargs)} for mask in masks]
+            else:
+                local_controlnet_kwargs = None
+        else:
+            controlnet_kwargs_posi, local_controlnet_kwargs = {"controlnet_frames": None}, [{}] * len(masks)
+        controlnet_kwargs_nega = controlnet_kwargs_posi if enable_controlnet_on_negative else {}
+        return controlnet_kwargs_posi, controlnet_kwargs_nega, local_controlnet_kwargs
+
+
+    def prepare_eligen(self, prompt_emb_nega, eligen_entity_prompts, eligen_entity_masks, width, height, t5_sequence_length, enable_eligen_inpaint, enable_eligen_on_negative, cfg_scale):
+        if eligen_entity_masks is not None:
+            entity_prompt_emb_posi, entity_masks_posi, fg_mask, bg_mask = self.prepare_entity_inputs(eligen_entity_prompts, eligen_entity_masks, width, height, t5_sequence_length, enable_eligen_inpaint)
+            if enable_eligen_on_negative and cfg_scale != 1.0:
+                entity_prompt_emb_nega = prompt_emb_nega['prompt_emb'].unsqueeze(1).repeat(1, entity_masks_posi.shape[1], 1, 1)
+                entity_masks_nega = entity_masks_posi
+            else:
+                entity_prompt_emb_nega, entity_masks_nega = None, None
+        else:
+            entity_prompt_emb_posi, entity_masks_posi, entity_prompt_emb_nega, entity_masks_nega = None, None, None, None
+            fg_mask, bg_mask = None, None
+        eligen_kwargs_posi = {"entity_prompt_emb": entity_prompt_emb_posi, "entity_masks": entity_masks_posi}
+        eligen_kwargs_nega = {"entity_prompt_emb": entity_prompt_emb_nega, "entity_masks": entity_masks_nega}
+        return eligen_kwargs_posi, eligen_kwargs_nega, fg_mask, bg_mask
+
+
+    def prepare_prompts(self, prompt, local_prompts, masks, mask_scales, t5_sequence_length, negative_prompt, cfg_scale):
+        # Extend prompt
+        self.load_models_to_device(['text_encoder_1', 'text_encoder_2'])
+        prompt, local_prompts, masks, mask_scales = self.extend_prompt(prompt, local_prompts, masks, mask_scales)
+
+        # Encode prompts
+        prompt_emb_posi = self.encode_prompt(prompt, t5_sequence_length=t5_sequence_length)
+        prompt_emb_nega = self.encode_prompt(negative_prompt, positive=False, t5_sequence_length=t5_sequence_length) if cfg_scale != 1.0 else None
+        prompt_emb_locals = [self.encode_prompt(prompt_local, t5_sequence_length=t5_sequence_length) for prompt_local in local_prompts]
+        return prompt_emb_posi, prompt_emb_nega, prompt_emb_locals
+
+
+    @torch.no_grad()
+    def __call__(
+        self,
+        # Prompt
+        prompt,
+        negative_prompt="",
+        cfg_scale=1.0,
+        embedded_guidance=3.5,
+        t5_sequence_length=512,
+        # Image
+        input_image=None,
+        denoising_strength=1.0,
+        height=1024,
+        width=1024,
+        seed=None,
+        # Steps
+        num_inference_steps=30,
+        # local prompts
+        local_prompts=(),
+        masks=(),
+        mask_scales=(),
+        # ControlNet
+        controlnet_image=None,
+        controlnet_inpaint_mask=None,
+        enable_controlnet_on_negative=False,
+        # IP-Adapter
+        ipadapter_images=None,
+        ipadapter_scale=1.0,
+        # EliGen
+        eligen_entity_prompts=None,
+        eligen_entity_masks=None,
+        enable_eligen_on_negative=False,
+        enable_eligen_inpaint=False,
+        # TeaCache
+        tea_cache_l1_thresh=None,
+        # Tile
+        tiled=False,
+        tile_size=128,
+        tile_stride=64,
+        # Progress bar
+        progress_bar_cmd=tqdm,
+        progress_bar_st=None,
+    ):
+        height, width = self.check_resize_height_width(height, width)
+
+        # Tiler parameters
+        tiler_kwargs = {"tiled": tiled, "tile_size": tile_size, "tile_stride": tile_stride}
+
+        # Prepare scheduler
+        self.scheduler.set_timesteps(num_inference_steps, denoising_strength)
+
+        # Prepare latent tensors
+        latents, input_latents = self.prepare_latents(input_image, height, width, seed, tiled, tile_size, tile_stride)
+
+        # Prompt
+        prompt_emb_posi, prompt_emb_nega, prompt_emb_locals = self.prepare_prompts(prompt, local_prompts, masks, mask_scales, t5_sequence_length, negative_prompt, cfg_scale)
+
+        # Extra input
+        extra_input = self.prepare_extra_input(latents, guidance=embedded_guidance)
+
+        # Entity control
+        eligen_kwargs_posi, eligen_kwargs_nega, fg_mask, bg_mask = self.prepare_eligen(prompt_emb_nega, eligen_entity_prompts, eligen_entity_masks, width, height, t5_sequence_length, enable_eligen_inpaint, enable_eligen_on_negative, cfg_scale)
+
+        # IP-Adapter
+        ipadapter_kwargs_list_posi, ipadapter_kwargs_list_nega = self.prepare_ipadapter(ipadapter_images, ipadapter_scale)
+
+        # ControlNets
+        controlnet_kwargs_posi, controlnet_kwargs_nega, local_controlnet_kwargs = self.prepare_controlnet(controlnet_image, masks, controlnet_inpaint_mask, tiler_kwargs, enable_controlnet_on_negative)
+
+        # TeaCache
+        tea_cache_kwargs = {"tea_cache": TeaCache(num_inference_steps, rel_l1_thresh=tea_cache_l1_thresh) if tea_cache_l1_thresh is not None else None}
+
+        # Denoise
+        self.load_models_to_device(['dit', 'controlnet'])
+        for progress_id, timestep in enumerate(progress_bar_cmd(self.scheduler.timesteps)):
+            timestep = timestep.unsqueeze(0).to(self.device)
+
+            # Positive side
+            inference_callback = lambda prompt_emb_posi, controlnet_kwargs: lets_dance_flux(
+                dit=self.dit, controlnet=self.controlnet,
+                hidden_states=latents, timestep=timestep,
+                **prompt_emb_posi, **tiler_kwargs, **extra_input, **controlnet_kwargs, **ipadapter_kwargs_list_posi, **eligen_kwargs_posi, **tea_cache_kwargs,
+            )
+            noise_pred_posi = self.control_noise_via_local_prompts(
+                prompt_emb_posi, prompt_emb_locals, masks, mask_scales, inference_callback,
+                special_kwargs=controlnet_kwargs_posi, special_local_kwargs_list=local_controlnet_kwargs
+            )
+
+            # Inpaint
+            if enable_eligen_inpaint:
+                noise_pred_posi = self.inpaint_fusion(latents, input_latents, noise_pred_posi, fg_mask, bg_mask, progress_id)
+            
+            # Classifier-free guidance
+            if cfg_scale != 1.0:
+                # Negative side
+                noise_pred_nega = lets_dance_flux(
+                    dit=self.dit, controlnet=self.controlnet,
+                    hidden_states=latents, timestep=timestep,
+                    **prompt_emb_nega, **tiler_kwargs, **extra_input, **controlnet_kwargs_nega, **ipadapter_kwargs_list_nega, **eligen_kwargs_nega,
+                )
+                noise_pred = noise_pred_nega + cfg_scale * (noise_pred_posi - noise_pred_nega)
+            else:
+                noise_pred = noise_pred_posi
+
+            # Iterate
+            latents = self.scheduler.step(noise_pred, self.scheduler.timesteps[progress_id], latents)
+
+            # UI
+            if progress_bar_st is not None:
+                progress_bar_st.progress(progress_id / len(self.scheduler.timesteps))
+        
+        # Decode image
+        self.load_models_to_device(['vae_decoder'])
+        image = self.decode_image(latents, **tiler_kwargs)
+
+        # Offload all models
+        self.load_models_to_device([])
+        return image
+
+
+class TeaCache:
+    def __init__(self, num_inference_steps, rel_l1_thresh):
+        self.num_inference_steps = num_inference_steps
+        self.step = 0
+        self.accumulated_rel_l1_distance = 0
+        self.previous_modulated_input = None
+        self.rel_l1_thresh = rel_l1_thresh
+        self.previous_residual = None
+        self.previous_hidden_states = None
+
+    def check(self, dit: FluxDiT, hidden_states, conditioning):
+        inp = hidden_states.clone()
+        temb_ = conditioning.clone()
+        modulated_inp, _, _, _, _ = dit.blocks[0].norm1_a(inp, emb=temb_)
+        if self.step == 0 or self.step == self.num_inference_steps - 1:
+            should_calc = True
+            self.accumulated_rel_l1_distance = 0
+        else: 
+            coefficients = [4.98651651e+02, -2.83781631e+02,  5.58554382e+01, -3.82021401e+00, 2.64230861e-01]
+            rescale_func = np.poly1d(coefficients)
+            self.accumulated_rel_l1_distance += rescale_func(((modulated_inp-self.previous_modulated_input).abs().mean() / self.previous_modulated_input.abs().mean()).cpu().item())
+            if self.accumulated_rel_l1_distance < self.rel_l1_thresh:
+                should_calc = False
+            else:
+                should_calc = True
+                self.accumulated_rel_l1_distance = 0
+        self.previous_modulated_input = modulated_inp 
+        self.step += 1
+        if self.step == self.num_inference_steps:
+            self.step = 0
+        if should_calc:
+            self.previous_hidden_states = hidden_states.clone()
+        return not should_calc
+    
+    def store(self, hidden_states):
+        self.previous_residual = hidden_states - self.previous_hidden_states
+        self.previous_hidden_states = None
+
+    def update(self, hidden_states):
+        hidden_states = hidden_states + self.previous_residual
+        return hidden_states
+
+
+def lets_dance_flux(
+    dit: FluxDiT,
+    controlnet: FluxMultiControlNetManager = None,
+    hidden_states=None,
+    timestep=None,
+    prompt_emb=None,
+    pooled_prompt_emb=None,
+    guidance=None,
+    text_ids=None,
+    image_ids=None,
+    controlnet_frames=None,
+    tiled=False,
+    tile_size=128,
+    tile_stride=64,
+    entity_prompt_emb=None,
+    entity_masks=None,
+    ipadapter_kwargs_list={},
+    tea_cache: TeaCache = None,
+    **kwargs
+):
+    if tiled:
+        def flux_forward_fn(hl, hr, wl, wr):
+            tiled_controlnet_frames = [f[:, :, hl: hr, wl: wr] for f in controlnet_frames] if controlnet_frames is not None else None
+            return lets_dance_flux(
+                dit=dit,
+                controlnet=controlnet,
+                hidden_states=hidden_states[:, :, hl: hr, wl: wr],
+                timestep=timestep,
+                prompt_emb=prompt_emb,
+                pooled_prompt_emb=pooled_prompt_emb,
+                guidance=guidance,
+                text_ids=text_ids,
+                image_ids=None,
+                controlnet_frames=tiled_controlnet_frames,
+                tiled=False,
+                **kwargs
+            )
+        return FastTileWorker().tiled_forward(
+            flux_forward_fn,
+            hidden_states,
+            tile_size=tile_size,
+            tile_stride=tile_stride,
+            tile_device=hidden_states.device,
+            tile_dtype=hidden_states.dtype
+        )
+
+
+    # ControlNet
+    if controlnet is not None and controlnet_frames is not None:
+        controlnet_extra_kwargs = {
+            "hidden_states": hidden_states,
+            "timestep": timestep,
+            "prompt_emb": prompt_emb,
+            "pooled_prompt_emb": pooled_prompt_emb,
+            "guidance": guidance,
+            "text_ids": text_ids,
+            "image_ids": image_ids,
+            "tiled": tiled,
+            "tile_size": tile_size,
+            "tile_stride": tile_stride,
+        }
+        controlnet_res_stack, controlnet_single_res_stack = controlnet(
+            controlnet_frames, **controlnet_extra_kwargs
+        )
+
+    if image_ids is None:
+        image_ids = dit.prepare_image_ids(hidden_states)
+    
+    conditioning = dit.time_embedder(timestep, hidden_states.dtype) + dit.pooled_text_embedder(pooled_prompt_emb)
+    if dit.guidance_embedder is not None:
+        guidance = guidance * 1000
+        conditioning = conditioning + dit.guidance_embedder(guidance, hidden_states.dtype)
+
+    height, width = hidden_states.shape[-2:]
+    hidden_states = dit.patchify(hidden_states)
+    hidden_states = dit.x_embedder(hidden_states)
+
+    if entity_prompt_emb is not None and entity_masks is not None:
+        prompt_emb, image_rotary_emb, attention_mask = dit.process_entity_masks(hidden_states, prompt_emb, entity_prompt_emb, entity_masks, text_ids, image_ids)
+    else:
+        prompt_emb = dit.context_embedder(prompt_emb)
+        image_rotary_emb = dit.pos_embedder(torch.cat((text_ids, image_ids), dim=1))
+        attention_mask = None
+
+    # TeaCache
+    if tea_cache is not None:
+        tea_cache_update = tea_cache.check(dit, hidden_states, conditioning)
+    else:
+        tea_cache_update = False
+
+    if tea_cache_update:
+        hidden_states = tea_cache.update(hidden_states)
+    else:
+        # Joint Blocks
+        for block_id, block in enumerate(dit.blocks):
+            hidden_states, prompt_emb = block(
+                hidden_states,
+                prompt_emb,
+                conditioning,
+                image_rotary_emb,
+                attention_mask,
+                ipadapter_kwargs_list=ipadapter_kwargs_list.get(block_id, None)
+            )
+            # ControlNet
+            if controlnet is not None and controlnet_frames is not None:
+                hidden_states = hidden_states + controlnet_res_stack[block_id]
+
+        # Single Blocks
+        hidden_states = torch.cat([prompt_emb, hidden_states], dim=1)
+        num_joint_blocks = len(dit.blocks)
+        for block_id, block in enumerate(dit.single_blocks):
+            hidden_states, prompt_emb = block(
+                hidden_states,
+                prompt_emb,
+                conditioning,
+                image_rotary_emb,
+                attention_mask,
+                ipadapter_kwargs_list=ipadapter_kwargs_list.get(block_id + num_joint_blocks, None)
+            )
+            # ControlNet
+            if controlnet is not None and controlnet_frames is not None:
+                hidden_states[:, prompt_emb.shape[1]:] = hidden_states[:, prompt_emb.shape[1]:] + controlnet_single_res_stack[block_id]
+        hidden_states = hidden_states[:, prompt_emb.shape[1]:]
+
+        if tea_cache is not None:
+            tea_cache.store(hidden_states)
+
+    hidden_states = dit.final_norm_out(hidden_states, conditioning)
+    hidden_states = dit.final_proj_out(hidden_states)
+    hidden_states = dit.unpatchify(hidden_states, height, width)
+
+    return hidden_states

diffsynth/pipelines/hunyuan_image.py

@@ -0,0 +1,288 @@
+from ..models.hunyuan_dit import HunyuanDiT
+from ..models.hunyuan_dit_text_encoder import HunyuanDiTCLIPTextEncoder, HunyuanDiTT5TextEncoder
+from ..models.sdxl_vae_encoder import SDXLVAEEncoder
+from ..models.sdxl_vae_decoder import SDXLVAEDecoder
+from ..models import ModelManager
+from ..prompters import HunyuanDiTPrompter
+from ..schedulers import EnhancedDDIMScheduler
+from .base import BasePipeline
+import torch
+from tqdm import tqdm
+import numpy as np
+
+
+
+class ImageSizeManager:
+    def __init__(self):
+        pass
+
+
+    def _to_tuple(self, x):
+        if isinstance(x, int):
+            return x, x
+        else:
+            return x
+
+
+    def get_fill_resize_and_crop(self, src, tgt):
+        th, tw = self._to_tuple(tgt)
+        h, w = self._to_tuple(src)
+
+        tr = th / tw        # base 分辨率
+        r = h / w           # 目标分辨率
+
+        # resize
+        if r > tr:
+            resize_height = th
+            resize_width = int(round(th / h * w))
+        else:
+            resize_width = tw
+            resize_height = int(round(tw / w * h))    # 根据base分辨率，将目标分辨率resize下来
+
+        crop_top = int(round((th - resize_height) / 2.0))
+        crop_left = int(round((tw - resize_width) / 2.0))
+
+        return (crop_top, crop_left), (crop_top + resize_height, crop_left + resize_width)
+
+
+    def get_meshgrid(self, start, *args):
+        if len(args) == 0:
+            # start is grid_size
+            num = self._to_tuple(start)
+            start = (0, 0)
+            stop = num
+        elif len(args) == 1:
+            # start is start, args[0] is stop, step is 1
+            start = self._to_tuple(start)
+            stop = self._to_tuple(args[0])
+            num = (stop[0] - start[0], stop[1] - start[1])
+        elif len(args) == 2:
+            # start is start, args[0] is stop, args[1] is num
+            start = self._to_tuple(start)       # 左上角   eg: 12,0
+            stop = self._to_tuple(args[0])      # 右下角   eg: 20,32
+            num = self._to_tuple(args[1])       # 目标大小  eg: 32,124
+        else:
+            raise ValueError(f"len(args) should be 0, 1 or 2, but got {len(args)}")
+
+        grid_h = np.linspace(start[0], stop[0], num[0], endpoint=False, dtype=np.float32) # 12-20 中间差值32份   0-32 中间差值124份
+        grid_w = np.linspace(start[1], stop[1], num[1], endpoint=False, dtype=np.float32)
+        grid = np.meshgrid(grid_w, grid_h)  # here w goes first
+        grid = np.stack(grid, axis=0)   # [2, W, H]
+        return grid
+
+
+    def get_2d_rotary_pos_embed(self, embed_dim, start, *args, use_real=True):
+        grid = self.get_meshgrid(start, *args)   # [2, H, w]
+        grid = grid.reshape([2, 1, *grid.shape[1:]])   # 返回一个采样矩阵  分辨率与目标分辨率一致
+        pos_embed = self.get_2d_rotary_pos_embed_from_grid(embed_dim, grid, use_real=use_real)
+        return pos_embed
+
+
+    def get_2d_rotary_pos_embed_from_grid(self, embed_dim, grid, use_real=False):
+        assert embed_dim % 4 == 0
+
+        # use half of dimensions to encode grid_h
+        emb_h = self.get_1d_rotary_pos_embed(embed_dim // 2, grid[0].reshape(-1), use_real=use_real)  # (H*W, D/4)
+        emb_w = self.get_1d_rotary_pos_embed(embed_dim // 2, grid[1].reshape(-1), use_real=use_real)  # (H*W, D/4)
+
+        if use_real:
+            cos = torch.cat([emb_h[0], emb_w[0]], dim=1)    # (H*W, D/2)
+            sin = torch.cat([emb_h[1], emb_w[1]], dim=1)    # (H*W, D/2)
+            return cos, sin
+        else:
+            emb = torch.cat([emb_h, emb_w], dim=1)    # (H*W, D/2)
+            return emb
+
+
+    def get_1d_rotary_pos_embed(self, dim: int, pos, theta: float = 10000.0, use_real=False):
+        if isinstance(pos, int):
+            pos = np.arange(pos)
+        freqs = 1.0 / (theta ** (torch.arange(0, dim, 2)[: (dim // 2)].float() / dim))  # [D/2]
+        t = torch.from_numpy(pos).to(freqs.device)  # type: ignore  # [S]
+        freqs = torch.outer(t, freqs).float()  # type: ignore   # [S, D/2]
+        if use_real:
+            freqs_cos = freqs.cos().repeat_interleave(2, dim=1)  # [S, D]
+            freqs_sin = freqs.sin().repeat_interleave(2, dim=1)  # [S, D]
+            return freqs_cos, freqs_sin
+        else:
+            freqs_cis = torch.polar(torch.ones_like(freqs), freqs)  # complex64     # [S, D/2]
+            return freqs_cis
+        
+
+    def calc_rope(self, height, width):
+        patch_size = 2
+        head_size = 88
+        th = height // 8 // patch_size
+        tw = width // 8 // patch_size
+        base_size = 512 // 8 // patch_size
+        start, stop = self.get_fill_resize_and_crop((th, tw), base_size)
+        sub_args = [start, stop, (th, tw)]
+        rope = self.get_2d_rotary_pos_embed(head_size, *sub_args)
+        return rope
+
+
+
+class HunyuanDiTImagePipeline(BasePipeline):
+
+    def __init__(self, device="cuda", torch_dtype=torch.float16):
+        super().__init__(device=device, torch_dtype=torch_dtype, height_division_factor=16, width_division_factor=16)
+        self.scheduler = EnhancedDDIMScheduler(prediction_type="v_prediction", beta_start=0.00085, beta_end=0.03)
+        self.prompter = HunyuanDiTPrompter()
+        self.image_size_manager = ImageSizeManager()
+        # models
+        self.text_encoder: HunyuanDiTCLIPTextEncoder = None
+        self.text_encoder_t5: HunyuanDiTT5TextEncoder = None
+        self.dit: HunyuanDiT = None
+        self.vae_decoder: SDXLVAEDecoder = None
+        self.vae_encoder: SDXLVAEEncoder = None
+        self.model_names = ['text_encoder', 'text_encoder_t5', 'dit', 'vae_decoder', 'vae_encoder']
+
+
+    def denoising_model(self):
+        return self.dit
+
+
+    def fetch_models(self, model_manager: ModelManager, prompt_refiner_classes=[]):
+        # Main models
+        self.text_encoder = model_manager.fetch_model("hunyuan_dit_clip_text_encoder")
+        self.text_encoder_t5 = model_manager.fetch_model("hunyuan_dit_t5_text_encoder")
+        self.dit = model_manager.fetch_model("hunyuan_dit")
+        self.vae_decoder = model_manager.fetch_model("sdxl_vae_decoder")
+        self.vae_encoder = model_manager.fetch_model("sdxl_vae_encoder")
+        self.prompter.fetch_models(self.text_encoder, self.text_encoder_t5)
+        self.prompter.load_prompt_refiners(model_manager, prompt_refiner_classes)
+
+
+    @staticmethod
+    def from_model_manager(model_manager: ModelManager, prompt_refiner_classes=[], device=None):
+        pipe = HunyuanDiTImagePipeline(
+            device=model_manager.device if device is None else device,
+            torch_dtype=model_manager.torch_dtype,
+        )
+        pipe.fetch_models(model_manager, prompt_refiner_classes)
+        return pipe
+    
+
+    def encode_image(self, image, tiled=False, tile_size=64, tile_stride=32):
+        latents = self.vae_encoder(image, tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+        return latents
+    
+
+    def decode_image(self, latent, tiled=False, tile_size=64, tile_stride=32):
+        image = self.vae_decoder(latent.to(self.device), tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+        image = self.vae_output_to_image(image)
+        return image
+    
+
+    def encode_prompt(self, prompt, clip_skip=1, clip_skip_2=1, positive=True):
+        text_emb, text_emb_mask, text_emb_t5, text_emb_mask_t5 = self.prompter.encode_prompt(
+            prompt,
+            clip_skip=clip_skip,
+            clip_skip_2=clip_skip_2,
+            positive=positive,
+            device=self.device
+        )
+        return {
+            "text_emb": text_emb,
+            "text_emb_mask": text_emb_mask,
+            "text_emb_t5": text_emb_t5,
+            "text_emb_mask_t5": text_emb_mask_t5
+        }
+    
+
+    def prepare_extra_input(self, latents=None, tiled=False, tile_size=64, tile_stride=32):
+        batch_size, height, width = latents.shape[0], latents.shape[2] * 8, latents.shape[3] * 8
+        if tiled:
+            height, width = tile_size * 16, tile_size * 16
+        image_meta_size = torch.as_tensor([width, height, width, height, 0, 0]).to(device=self.device)
+        freqs_cis_img = self.image_size_manager.calc_rope(height, width)
+        image_meta_size = torch.stack([image_meta_size] * batch_size)
+        return {
+            "size_emb": image_meta_size,
+            "freq_cis_img": (freqs_cis_img[0].to(dtype=self.torch_dtype, device=self.device), freqs_cis_img[1].to(dtype=self.torch_dtype, device=self.device)),
+            "tiled": tiled,
+            "tile_size": tile_size,
+            "tile_stride": tile_stride
+        }
+    
+
+    @torch.no_grad()
+    def __call__(
+        self,
+        prompt,
+        local_prompts=[],
+        masks=[],
+        mask_scales=[],
+        negative_prompt="",
+        cfg_scale=7.5,
+        clip_skip=1,
+        clip_skip_2=1,
+        input_image=None,
+        reference_strengths=[0.4],
+        denoising_strength=1.0,
+        height=1024,
+        width=1024,
+        num_inference_steps=20,
+        tiled=False,
+        tile_size=64,
+        tile_stride=32,
+        seed=None,
+        progress_bar_cmd=tqdm,
+        progress_bar_st=None,
+    ):
+        height, width = self.check_resize_height_width(height, width)
+        
+        # Prepare scheduler
+        self.scheduler.set_timesteps(num_inference_steps, denoising_strength)
+
+        # Prepare latent tensors
+        noise = self.generate_noise((1, 4, height//8, width//8), seed=seed, device=self.device, dtype=self.torch_dtype)
+        if input_image is not None:
+            self.load_models_to_device(['vae_encoder'])
+            image = self.preprocess_image(input_image).to(device=self.device, dtype=torch.float32)
+            latents = self.vae_encoder(image, tiled=tiled, tile_size=tile_size, tile_stride=tile_stride).to(self.torch_dtype)
+            latents = self.scheduler.add_noise(latents, noise, timestep=self.scheduler.timesteps[0])
+        else:
+            latents = noise.clone()
+
+        # Encode prompts
+        self.load_models_to_device(['text_encoder', 'text_encoder_t5'])
+        prompt_emb_posi = self.encode_prompt(prompt, clip_skip=clip_skip, clip_skip_2=clip_skip_2, positive=True)
+        if cfg_scale != 1.0:
+            prompt_emb_nega = self.encode_prompt(negative_prompt, clip_skip=clip_skip, clip_skip_2=clip_skip_2, positive=True)
+        prompt_emb_locals = [self.encode_prompt(prompt_local, clip_skip=clip_skip, clip_skip_2=clip_skip_2, positive=True) for prompt_local in local_prompts]
+
+        # Prepare positional id
+        extra_input = self.prepare_extra_input(latents, tiled, tile_size)
+
+        # Denoise
+        self.load_models_to_device(['dit'])
+        for progress_id, timestep in enumerate(progress_bar_cmd(self.scheduler.timesteps)):
+            timestep = torch.tensor([timestep]).to(dtype=self.torch_dtype, device=self.device)
+
+            # Positive side
+            inference_callback = lambda prompt_emb_posi: self.dit(latents, timestep=timestep, **prompt_emb_posi, **extra_input)
+            noise_pred_posi = self.control_noise_via_local_prompts(prompt_emb_posi, prompt_emb_locals, masks, mask_scales, inference_callback)
+            
+            if cfg_scale != 1.0:
+                # Negative side
+                noise_pred_nega = self.dit(
+                    latents, timestep=timestep, **prompt_emb_nega, **extra_input,
+                )
+                # Classifier-free guidance
+                noise_pred = noise_pred_nega + cfg_scale * (noise_pred_posi - noise_pred_nega)
+            else:
+                noise_pred = noise_pred_posi
+
+            latents = self.scheduler.step(noise_pred, self.scheduler.timesteps[progress_id], latents)
+
+            if progress_bar_st is not None:
+                progress_bar_st.progress(progress_id / len(self.scheduler.timesteps))
+        
+        # Decode image
+        self.load_models_to_device(['vae_decoder'])
+        image = self.decode_image(latents.to(torch.float32), tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+
+        # Offload all models
+        self.load_models_to_device([])
+        return image

diffsynth/pipelines/hunyuan_video.py

@@ -0,0 +1,395 @@
+from ..models import ModelManager, SD3TextEncoder1, HunyuanVideoVAEDecoder, HunyuanVideoVAEEncoder
+from ..models.hunyuan_video_dit import HunyuanVideoDiT
+from ..models.hunyuan_video_text_encoder import HunyuanVideoLLMEncoder
+from ..schedulers.flow_match import FlowMatchScheduler
+from .base import BasePipeline
+from ..prompters import HunyuanVideoPrompter
+import torch
+import torchvision.transforms as transforms
+from einops import rearrange
+import numpy as np
+from PIL import Image
+from tqdm import tqdm
+
+
+class HunyuanVideoPipeline(BasePipeline):
+
+    def __init__(self, device="cuda", torch_dtype=torch.float16):
+        super().__init__(device=device, torch_dtype=torch_dtype)
+        self.scheduler = FlowMatchScheduler(shift=7.0, sigma_min=0.0, extra_one_step=True)
+        self.prompter = HunyuanVideoPrompter()
+        self.text_encoder_1: SD3TextEncoder1 = None
+        self.text_encoder_2: HunyuanVideoLLMEncoder = None
+        self.dit: HunyuanVideoDiT = None
+        self.vae_decoder: HunyuanVideoVAEDecoder = None
+        self.vae_encoder: HunyuanVideoVAEEncoder = None
+        self.model_names = ['text_encoder_1', 'text_encoder_2', 'dit', 'vae_decoder', 'vae_encoder']
+        self.vram_management = False
+
+
+    def enable_vram_management(self):
+        self.vram_management = True
+        self.enable_cpu_offload()
+        self.text_encoder_2.enable_auto_offload(dtype=self.torch_dtype, device=self.device)
+        self.dit.enable_auto_offload(dtype=self.torch_dtype, device=self.device)
+
+
+    def fetch_models(self, model_manager: ModelManager):
+        self.text_encoder_1 = model_manager.fetch_model("sd3_text_encoder_1")
+        self.text_encoder_2 = model_manager.fetch_model("hunyuan_video_text_encoder_2")
+        self.dit = model_manager.fetch_model("hunyuan_video_dit")
+        self.vae_decoder = model_manager.fetch_model("hunyuan_video_vae_decoder")
+        self.vae_encoder = model_manager.fetch_model("hunyuan_video_vae_encoder")
+        self.prompter.fetch_models(self.text_encoder_1, self.text_encoder_2)
+
+
+    @staticmethod
+    def from_model_manager(model_manager: ModelManager, torch_dtype=None, device=None, enable_vram_management=True):
+        if device is None: device = model_manager.device
+        if torch_dtype is None: torch_dtype = model_manager.torch_dtype
+        pipe = HunyuanVideoPipeline(device=device, torch_dtype=torch_dtype)
+        pipe.fetch_models(model_manager)
+        if enable_vram_management:
+            pipe.enable_vram_management()
+        return pipe
+
+    def generate_crop_size_list(self, base_size=256, patch_size=32, max_ratio=4.0):
+        num_patches = round((base_size / patch_size)**2)
+        assert max_ratio >= 1.0
+        crop_size_list = []
+        wp, hp = num_patches, 1
+        while wp > 0:
+            if max(wp, hp) / min(wp, hp) <= max_ratio:
+                crop_size_list.append((wp * patch_size, hp * patch_size))
+            if (hp + 1) * wp <= num_patches:
+                hp += 1
+            else:
+                wp -= 1
+        return crop_size_list
+
+
+    def get_closest_ratio(self, height: float, width: float, ratios: list, buckets: list):
+        aspect_ratio = float(height) / float(width)
+        closest_ratio_id = np.abs(ratios - aspect_ratio).argmin()
+        closest_ratio = min(ratios, key=lambda ratio: abs(float(ratio) - aspect_ratio))
+        return buckets[closest_ratio_id], float(closest_ratio)
+
+
+    def prepare_vae_images_inputs(self, semantic_images, i2v_resolution="720p"):
+        if i2v_resolution == "720p":
+            bucket_hw_base_size = 960
+        elif i2v_resolution == "540p":
+            bucket_hw_base_size = 720
+        elif i2v_resolution == "360p":
+            bucket_hw_base_size = 480
+        else:
+            raise ValueError(f"i2v_resolution: {i2v_resolution} must be in [360p, 540p, 720p]")
+        origin_size = semantic_images[0].size
+
+        crop_size_list = self.generate_crop_size_list(bucket_hw_base_size, 32)
+        aspect_ratios = np.array([round(float(h) / float(w), 5) for h, w in crop_size_list])
+        closest_size, closest_ratio = self.get_closest_ratio(origin_size[1], origin_size[0], aspect_ratios, crop_size_list)
+        ref_image_transform = transforms.Compose([
+            transforms.Resize(closest_size),
+            transforms.CenterCrop(closest_size),
+            transforms.ToTensor(),
+            transforms.Normalize([0.5], [0.5])
+        ])
+
+        semantic_image_pixel_values = [ref_image_transform(semantic_image) for semantic_image in semantic_images]
+        semantic_image_pixel_values = torch.cat(semantic_image_pixel_values).unsqueeze(0).unsqueeze(2).to(self.device)
+        target_height, target_width = closest_size
+        return semantic_image_pixel_values, target_height, target_width
+
+
+    def encode_prompt(self, prompt, positive=True, clip_sequence_length=77, llm_sequence_length=256, input_images=None):
+        prompt_emb, pooled_prompt_emb, text_mask = self.prompter.encode_prompt(
+            prompt, device=self.device, positive=positive, clip_sequence_length=clip_sequence_length, llm_sequence_length=llm_sequence_length, images=input_images
+        )
+        return {"prompt_emb": prompt_emb, "pooled_prompt_emb": pooled_prompt_emb, "text_mask": text_mask}
+
+
+    def prepare_extra_input(self, latents=None, guidance=1.0):
+        freqs_cos, freqs_sin = self.dit.prepare_freqs(latents)
+        guidance = torch.Tensor([guidance] * latents.shape[0]).to(device=latents.device, dtype=latents.dtype)
+        return {"freqs_cos": freqs_cos, "freqs_sin": freqs_sin, "guidance": guidance}
+
+
+    def tensor2video(self, frames):
+        frames = rearrange(frames, "C T H W -> T H W C")
+        frames = ((frames.float() + 1) * 127.5).clip(0, 255).cpu().numpy().astype(np.uint8)
+        frames = [Image.fromarray(frame) for frame in frames]
+        return frames
+
+
+    def encode_video(self, frames, tile_size=(17, 30, 30), tile_stride=(12, 20, 20)):
+        tile_size = ((tile_size[0] - 1) * 4 + 1, tile_size[1] * 8, tile_size[2] * 8)
+        tile_stride = (tile_stride[0] * 4, tile_stride[1] * 8, tile_stride[2] * 8)
+        latents = self.vae_encoder.encode_video(frames, tile_size=tile_size, tile_stride=tile_stride)
+        return latents
+
+
+    @torch.no_grad()
+    def __call__(
+        self,
+        prompt,
+        negative_prompt="",
+        input_video=None,
+        input_images=None,
+        i2v_resolution="720p",
+        i2v_stability=True,
+        denoising_strength=1.0,
+        seed=None,
+        rand_device=None,
+        height=720,
+        width=1280,
+        num_frames=129,
+        embedded_guidance=6.0,
+        cfg_scale=1.0,
+        num_inference_steps=30,
+        tea_cache_l1_thresh=None,
+        tile_size=(17, 30, 30),
+        tile_stride=(12, 20, 20),
+        step_processor=None,
+        progress_bar_cmd=lambda x: x,
+        progress_bar_st=None,
+    ):
+        # Tiler parameters
+        tiler_kwargs = {"tile_size": tile_size, "tile_stride": tile_stride}
+
+        # Scheduler
+        self.scheduler.set_timesteps(num_inference_steps, denoising_strength)
+
+        # encoder input images
+        if input_images is not None:
+            self.load_models_to_device(['vae_encoder'])
+            image_pixel_values, height, width = self.prepare_vae_images_inputs(input_images, i2v_resolution=i2v_resolution)
+            with torch.autocast(device_type=self.device, dtype=torch.float16, enabled=True):
+                image_latents = self.vae_encoder(image_pixel_values)
+
+        # Initialize noise
+        rand_device = self.device if rand_device is None else rand_device
+        noise = self.generate_noise((1, 16, (num_frames - 1) // 4 + 1, height//8, width//8), seed=seed, device=rand_device, dtype=self.torch_dtype).to(self.device)
+        if input_video is not None:
+            self.load_models_to_device(['vae_encoder'])
+            input_video = self.preprocess_images(input_video)
+            input_video = torch.stack(input_video, dim=2)
+            latents = self.encode_video(input_video, **tiler_kwargs).to(dtype=self.torch_dtype, device=self.device)
+            latents = self.scheduler.add_noise(latents, noise, timestep=self.scheduler.timesteps[0])
+        elif input_images is not None and i2v_stability:
+            noise = self.generate_noise((1, 16, (num_frames - 1) // 4 + 1, height//8, width//8), seed=seed, device=rand_device, dtype=image_latents.dtype).to(self.device)
+            t = torch.tensor([0.999]).to(device=self.device)
+            latents = noise * t + image_latents.repeat(1, 1, (num_frames - 1) // 4 + 1, 1, 1) * (1 - t)
+            latents = latents.to(dtype=image_latents.dtype)
+        else:
+            latents = noise
+
+        # Encode prompts
+        # current mllm does not support vram_management
+        self.load_models_to_device(["text_encoder_1"] if self.vram_management and input_images is None else ["text_encoder_1", "text_encoder_2"])
+        prompt_emb_posi = self.encode_prompt(prompt, positive=True, input_images=input_images)
+        if cfg_scale != 1.0:
+            prompt_emb_nega = self.encode_prompt(negative_prompt, positive=False)
+
+        # Extra input
+        extra_input = self.prepare_extra_input(latents, guidance=embedded_guidance)
+
+        # TeaCache
+        tea_cache_kwargs = {"tea_cache": TeaCache(num_inference_steps, rel_l1_thresh=tea_cache_l1_thresh) if tea_cache_l1_thresh is not None else None}
+
+        # Denoise
+        self.load_models_to_device([] if self.vram_management else ["dit"])
+        for progress_id, timestep in enumerate(progress_bar_cmd(self.scheduler.timesteps)):
+            timestep = timestep.unsqueeze(0).to(self.device)
+            print(f"Step {progress_id + 1} / {len(self.scheduler.timesteps)}")
+
+            forward_func = lets_dance_hunyuan_video
+            if input_images is not None:
+                latents = torch.concat([image_latents, latents[:, :, 1:, :, :]], dim=2)
+                forward_func = lets_dance_hunyuan_video_i2v
+
+            # Inference
+            with torch.autocast(device_type=self.device, dtype=self.torch_dtype):
+                noise_pred_posi = forward_func(self.dit, latents, timestep, **prompt_emb_posi, **extra_input, **tea_cache_kwargs)
+                if cfg_scale != 1.0:
+                    noise_pred_nega = forward_func(self.dit, latents, timestep, **prompt_emb_nega, **extra_input)
+                    noise_pred = noise_pred_nega + cfg_scale * (noise_pred_posi - noise_pred_nega)
+                else:
+                    noise_pred = noise_pred_posi
+
+            # (Experimental feature, may be removed in the future)
+            if step_processor is not None:
+                self.load_models_to_device(['vae_decoder'])
+                rendered_frames = self.scheduler.step(noise_pred, self.scheduler.timesteps[progress_id], latents, to_final=True)
+                rendered_frames = self.vae_decoder.decode_video(rendered_frames, **tiler_kwargs)
+                rendered_frames = self.tensor2video(rendered_frames[0])
+                rendered_frames = step_processor(rendered_frames, original_frames=input_video)
+                self.load_models_to_device(['vae_encoder'])
+                rendered_frames = self.preprocess_images(rendered_frames)
+                rendered_frames = torch.stack(rendered_frames, dim=2)
+                target_latents = self.encode_video(rendered_frames).to(dtype=self.torch_dtype, device=self.device)
+                noise_pred = self.scheduler.return_to_timestep(self.scheduler.timesteps[progress_id], latents, target_latents)
+                self.load_models_to_device([] if self.vram_management else ["dit"])
+
+            # Scheduler
+            if input_images is not None:
+                latents = self.scheduler.step(noise_pred[:, :, 1:, :, :], self.scheduler.timesteps[progress_id], latents[:, :, 1:, :, :])
+                latents = torch.concat([image_latents, latents], dim=2)
+            else:
+                latents = self.scheduler.step(noise_pred, self.scheduler.timesteps[progress_id], latents)
+
+        # Decode
+        self.load_models_to_device(['vae_decoder'])
+        frames = self.vae_decoder.decode_video(latents, **tiler_kwargs)
+        self.load_models_to_device([])
+        frames = self.tensor2video(frames[0])
+
+        return frames
+
+
+
+class TeaCache:
+    def __init__(self, num_inference_steps, rel_l1_thresh):
+        self.num_inference_steps = num_inference_steps
+        self.step = 0
+        self.accumulated_rel_l1_distance = 0
+        self.previous_modulated_input = None
+        self.rel_l1_thresh = rel_l1_thresh
+        self.previous_residual = None
+        self.previous_hidden_states = None
+
+    def check(self, dit: HunyuanVideoDiT, img, vec):
+        img_ = img.clone()
+        vec_ = vec.clone()
+        img_mod1_shift, img_mod1_scale, _, _, _, _ = dit.double_blocks[0].component_a.mod(vec_).chunk(6, dim=-1)
+        normed_inp = dit.double_blocks[0].component_a.norm1(img_)
+        modulated_inp = normed_inp * (1 + img_mod1_scale.unsqueeze(1)) + img_mod1_shift.unsqueeze(1)
+        if self.step == 0 or self.step == self.num_inference_steps - 1:
+            should_calc = True
+            self.accumulated_rel_l1_distance = 0
+        else:
+            coefficients = [7.33226126e+02, -4.01131952e+02,  6.75869174e+01, -3.14987800e+00, 9.61237896e-02]
+            rescale_func = np.poly1d(coefficients)
+            self.accumulated_rel_l1_distance += rescale_func(((modulated_inp-self.previous_modulated_input).abs().mean() / self.previous_modulated_input.abs().mean()).cpu().item())
+            if self.accumulated_rel_l1_distance < self.rel_l1_thresh:
+                should_calc = False
+            else:
+                should_calc = True
+                self.accumulated_rel_l1_distance = 0
+        self.previous_modulated_input = modulated_inp
+        self.step += 1
+        if self.step == self.num_inference_steps:
+            self.step = 0
+        if should_calc:
+            self.previous_hidden_states = img.clone()
+        return not should_calc
+
+    def store(self, hidden_states):
+        self.previous_residual = hidden_states - self.previous_hidden_states
+        self.previous_hidden_states = None
+
+    def update(self, hidden_states):
+        hidden_states = hidden_states + self.previous_residual
+        return hidden_states
+
+
+
+def lets_dance_hunyuan_video(
+    dit: HunyuanVideoDiT,
+    x: torch.Tensor,
+    t: torch.Tensor,
+    prompt_emb: torch.Tensor = None,
+    text_mask: torch.Tensor = None,
+    pooled_prompt_emb: torch.Tensor = None,
+    freqs_cos: torch.Tensor = None,
+    freqs_sin: torch.Tensor = None,
+    guidance: torch.Tensor = None,
+    tea_cache: TeaCache = None,
+    **kwargs
+):
+    B, C, T, H, W = x.shape
+
+    vec = dit.time_in(t, dtype=torch.float32) + dit.vector_in(pooled_prompt_emb) + dit.guidance_in(guidance * 1000, dtype=torch.float32)
+    img = dit.img_in(x)
+    txt = dit.txt_in(prompt_emb, t, text_mask)
+
+    # TeaCache
+    if tea_cache is not None:
+        tea_cache_update = tea_cache.check(dit, img, vec)
+    else:
+        tea_cache_update = False
+
+    if tea_cache_update:
+        print("TeaCache skip forward.")
+        img = tea_cache.update(img)
+    else:
+        split_token = int(text_mask.sum(dim=1))
+        txt_len = int(txt.shape[1])
+        for block in tqdm(dit.double_blocks, desc="Double stream blocks"):
+            img, txt = block(img, txt, vec, (freqs_cos, freqs_sin), split_token=split_token)
+
+        x = torch.concat([img, txt], dim=1)
+        for block in tqdm(dit.single_blocks, desc="Single stream blocks"):
+            x = block(x, vec, (freqs_cos, freqs_sin), txt_len=txt_len, split_token=split_token)
+        img = x[:, :-txt_len]
+
+        if tea_cache is not None:
+            tea_cache.store(img)
+    img = dit.final_layer(img, vec)
+    img = dit.unpatchify(img, T=T//1, H=H//2, W=W//2)
+    return img
+
+
+def lets_dance_hunyuan_video_i2v(
+    dit: HunyuanVideoDiT,
+    x: torch.Tensor,
+    t: torch.Tensor,
+    prompt_emb: torch.Tensor = None,
+    text_mask: torch.Tensor = None,
+    pooled_prompt_emb: torch.Tensor = None,
+    freqs_cos: torch.Tensor = None,
+    freqs_sin: torch.Tensor = None,
+    guidance: torch.Tensor = None,
+    tea_cache: TeaCache = None,
+    **kwargs
+):
+    B, C, T, H, W = x.shape
+    # Uncomment below to keep same as official implementation
+    # guidance = guidance.to(dtype=torch.float32).to(torch.bfloat16)
+    vec = dit.time_in(t, dtype=torch.bfloat16)
+    vec_2 = dit.vector_in(pooled_prompt_emb)
+    vec = vec + vec_2
+    vec = vec + dit.guidance_in(guidance * 1000., dtype=torch.bfloat16)
+
+    token_replace_vec = dit.time_in(torch.zeros_like(t), dtype=torch.bfloat16)
+    tr_token = (H // 2) * (W // 2)
+    token_replace_vec = token_replace_vec + vec_2
+
+    img = dit.img_in(x)
+    txt = dit.txt_in(prompt_emb, t, text_mask)
+
+    # TeaCache
+    if tea_cache is not None:
+        tea_cache_update = tea_cache.check(dit, img, vec)
+    else:
+        tea_cache_update = False
+
+    if tea_cache_update:
+        print("TeaCache skip forward.")
+        img = tea_cache.update(img)
+    else:
+        split_token = int(text_mask.sum(dim=1))
+        txt_len = int(txt.shape[1])
+        for block in tqdm(dit.double_blocks, desc="Double stream blocks"):
+            img, txt = block(img, txt, vec, (freqs_cos, freqs_sin), token_replace_vec, tr_token, split_token)
+
+        x = torch.concat([img, txt], dim=1)
+        for block in tqdm(dit.single_blocks, desc="Single stream blocks"):
+            x = block(x, vec, (freqs_cos, freqs_sin), txt_len, token_replace_vec, tr_token, split_token)
+        img = x[:, :-txt_len]
+
+        if tea_cache is not None:
+            tea_cache.store(img)
+    img = dit.final_layer(img, vec)
+    img = dit.unpatchify(img, T=T//1, H=H//2, W=W//2)
+    return img

diffsynth/pipelines/omnigen_image.py

@@ -0,0 +1,289 @@
+from ..models.omnigen import OmniGenTransformer
+from ..models.sdxl_vae_encoder import SDXLVAEEncoder
+from ..models.sdxl_vae_decoder import SDXLVAEDecoder
+from ..models.model_manager import ModelManager
+from ..prompters.omnigen_prompter import OmniGenPrompter
+from ..schedulers import FlowMatchScheduler
+from .base import BasePipeline
+from typing import Optional, Dict, Any, Tuple, List
+from transformers.cache_utils import DynamicCache
+import torch, os
+from tqdm import tqdm
+
+
+
+class OmniGenCache(DynamicCache):
+    def __init__(self, 
+                    num_tokens_for_img: int, offload_kv_cache: bool=False) -> None:
+        if not torch.cuda.is_available():
+            print("No available GPU, offload_kv_cache will be set to False, which will result in large memory usage and time cost when input multiple images!!!")
+            offload_kv_cache = False
+            raise RuntimeError("OffloadedCache can only be used with a GPU")
+        super().__init__()
+        self.original_device = []
+        self.prefetch_stream = torch.cuda.Stream()
+        self.num_tokens_for_img = num_tokens_for_img
+        self.offload_kv_cache = offload_kv_cache
+
+    def prefetch_layer(self, layer_idx: int):
+        "Starts prefetching the next layer cache"
+        if layer_idx < len(self):
+            with torch.cuda.stream(self.prefetch_stream):
+                # Prefetch next layer tensors to GPU
+                device = self.original_device[layer_idx]
+                self.key_cache[layer_idx] = self.key_cache[layer_idx].to(device, non_blocking=True)
+                self.value_cache[layer_idx] = self.value_cache[layer_idx].to(device, non_blocking=True)
+
+    
+    def evict_previous_layer(self, layer_idx: int):
+        "Moves the previous layer cache to the CPU"
+        if len(self) > 2:
+            # We do it on the default stream so it occurs after all earlier computations on these tensors are done
+            if layer_idx == 0: 
+                prev_layer_idx = -1
+            else:
+                prev_layer_idx = (layer_idx - 1) % len(self)
+            self.key_cache[prev_layer_idx] = self.key_cache[prev_layer_idx].to("cpu", non_blocking=True)
+            self.value_cache[prev_layer_idx] = self.value_cache[prev_layer_idx].to("cpu", non_blocking=True)
+
+
+    def __getitem__(self, layer_idx: int) -> List[Tuple[torch.Tensor]]:
+        "Gets the cache for this layer to the device. Prefetches the next and evicts the previous layer."
+        if layer_idx < len(self):
+            if self.offload_kv_cache:
+                # Evict the previous layer if necessary
+                torch.cuda.current_stream().synchronize()
+                self.evict_previous_layer(layer_idx)
+                # Load current layer cache to its original device if not already there
+                original_device = self.original_device[layer_idx]
+                # self.prefetch_stream.synchronize(original_device)
+                torch.cuda.synchronize(self.prefetch_stream)
+                key_tensor = self.key_cache[layer_idx]
+                value_tensor = self.value_cache[layer_idx]
+                
+                # Prefetch the next layer
+                self.prefetch_layer((layer_idx + 1) % len(self))
+            else:
+                key_tensor = self.key_cache[layer_idx]
+                value_tensor = self.value_cache[layer_idx]
+            return (key_tensor, value_tensor)
+        else:
+            raise KeyError(f"Cache only has {len(self)} layers, attempted to access layer with index {layer_idx}")
+        
+       
+    def update(
+        self,
+        key_states: torch.Tensor, 
+        value_states: torch.Tensor,
+        layer_idx: int,
+        cache_kwargs: Optional[Dict[str, Any]] = None,
+    ) -> Tuple[torch.Tensor, torch.Tensor]:
+        """
+        Updates the cache with the new `key_states` and `value_states` for the layer `layer_idx`.
+        Parameters:
+            key_states (`torch.Tensor`):
+                The new key states to cache.
+            value_states (`torch.Tensor`):
+                The new value states to cache.
+            layer_idx (`int`):
+                The index of the layer to cache the states for.
+            cache_kwargs (`Dict[str, Any]`, `optional`):
+                Additional arguments for the cache subclass. No additional arguments are used in `OffloadedCache`.
+        Return:
+            A tuple containing the updated key and value states.
+        """
+        # Update the cache
+        if len(self.key_cache) < layer_idx:
+            raise ValueError("OffloadedCache does not support model usage where layers are skipped. Use DynamicCache.")
+        elif len(self.key_cache) == layer_idx:
+            # only cache the states for condition tokens
+            key_states = key_states[..., :-(self.num_tokens_for_img+1), :]
+            value_states = value_states[..., :-(self.num_tokens_for_img+1), :]
+
+             # Update the number of seen tokens
+            if layer_idx == 0:
+                self._seen_tokens += key_states.shape[-2]
+                
+            self.key_cache.append(key_states)
+            self.value_cache.append(value_states)
+            self.original_device.append(key_states.device)
+            if self.offload_kv_cache:
+                self.evict_previous_layer(layer_idx)
+            return self.key_cache[layer_idx], self.value_cache[layer_idx]
+        else:
+            # only cache the states for condition tokens
+            key_tensor, value_tensor = self[layer_idx]
+            k = torch.cat([key_tensor, key_states], dim=-2)
+            v = torch.cat([value_tensor, value_states], dim=-2)
+            return k, v
+
+
+
+class OmnigenImagePipeline(BasePipeline):
+
+    def __init__(self, device="cuda", torch_dtype=torch.float16):
+        super().__init__(device=device, torch_dtype=torch_dtype)
+        self.scheduler = FlowMatchScheduler(num_train_timesteps=1, shift=1, inverse_timesteps=True, sigma_min=0, sigma_max=1)
+        # models
+        self.vae_decoder: SDXLVAEDecoder = None
+        self.vae_encoder: SDXLVAEEncoder = None
+        self.transformer: OmniGenTransformer = None
+        self.prompter: OmniGenPrompter = None
+        self.model_names = ['transformer', 'vae_decoder', 'vae_encoder']
+
+
+    def denoising_model(self):
+        return self.transformer
+
+
+    def fetch_models(self, model_manager: ModelManager, prompt_refiner_classes=[]):
+        # Main models
+        self.transformer, model_path = model_manager.fetch_model("omnigen_transformer", require_model_path=True)
+        self.vae_decoder = model_manager.fetch_model("sdxl_vae_decoder")
+        self.vae_encoder = model_manager.fetch_model("sdxl_vae_encoder")
+        self.prompter = OmniGenPrompter.from_pretrained(os.path.dirname(model_path))
+
+
+    @staticmethod
+    def from_model_manager(model_manager: ModelManager, prompt_refiner_classes=[], device=None):
+        pipe = OmnigenImagePipeline(
+            device=model_manager.device if device is None else device,
+            torch_dtype=model_manager.torch_dtype,
+        )
+        pipe.fetch_models(model_manager, prompt_refiner_classes=[])
+        return pipe
+    
+
+    def encode_image(self, image, tiled=False, tile_size=64, tile_stride=32):
+        latents = self.vae_encoder(image, tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+        return latents
+
+    
+    def encode_images(self, images, tiled=False, tile_size=64, tile_stride=32):
+        latents = [self.encode_image(image.to(device=self.device), tiled, tile_size, tile_stride).to(self.torch_dtype) for image in images]
+        return latents
+    
+
+    def decode_image(self, latent, tiled=False, tile_size=64, tile_stride=32):
+        image = self.vae_decoder(latent.to(self.device), tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+        image = self.vae_output_to_image(image)
+        return image
+    
+
+    def encode_prompt(self, prompt, clip_skip=1, positive=True):
+        prompt_emb = self.prompter.encode_prompt(prompt, clip_skip=clip_skip, device=self.device, positive=positive)
+        return {"encoder_hidden_states": prompt_emb}
+    
+
+    def prepare_extra_input(self, latents=None):
+        return {}
+    
+
+    def crop_position_ids_for_cache(self, position_ids, num_tokens_for_img):
+        if isinstance(position_ids, list):
+            for i in range(len(position_ids)):
+                position_ids[i] = position_ids[i][:, -(num_tokens_for_img+1):]
+        else:
+            position_ids = position_ids[:, -(num_tokens_for_img+1):]
+        return position_ids
+    
+    
+    def crop_attention_mask_for_cache(self, attention_mask, num_tokens_for_img):
+        if isinstance(attention_mask, list):
+            return [x[..., -(num_tokens_for_img+1):, :] for x in attention_mask]
+        return attention_mask[..., -(num_tokens_for_img+1):, :]
+    
+
+    @torch.no_grad()
+    def __call__(
+        self,
+        prompt,
+        reference_images=[],
+        cfg_scale=2.0,
+        image_cfg_scale=2.0,
+        use_kv_cache=True,
+        offload_kv_cache=True,
+        input_image=None,
+        denoising_strength=1.0,
+        height=1024,
+        width=1024,
+        num_inference_steps=20,
+        tiled=False,
+        tile_size=64,
+        tile_stride=32,
+        seed=None,
+        progress_bar_cmd=tqdm,
+        progress_bar_st=None,
+    ):
+        height, width = self.check_resize_height_width(height, width)
+        
+        # Tiler parameters
+        tiler_kwargs = {"tiled": tiled, "tile_size": tile_size, "tile_stride": tile_stride}
+
+        # Prepare scheduler
+        self.scheduler.set_timesteps(num_inference_steps, denoising_strength)
+
+        # Prepare latent tensors
+        if input_image is not None:
+            self.load_models_to_device(['vae_encoder'])
+            image = self.preprocess_image(input_image).to(device=self.device, dtype=self.torch_dtype)
+            latents = self.encode_image(image, **tiler_kwargs)
+            noise = self.generate_noise((1, 4, height//8, width//8), seed=seed, device=self.device, dtype=self.torch_dtype)
+            latents = self.scheduler.add_noise(latents, noise, timestep=self.scheduler.timesteps[0])
+        else:
+            latents = self.generate_noise((1, 4, height//8, width//8), seed=seed, device=self.device, dtype=self.torch_dtype)
+        latents = latents.repeat(3, 1, 1, 1)
+
+        # Encode prompts
+        input_data = self.prompter(prompt, reference_images, height=height, width=width, use_img_cfg=True, separate_cfg_input=True, use_input_image_size_as_output=False)
+
+        # Encode images
+        reference_latents = [self.encode_images(images, **tiler_kwargs) for images in input_data['input_pixel_values']]
+        
+        # Pack all parameters
+        model_kwargs = dict(input_ids=[input_ids.to(self.device) for input_ids in input_data['input_ids']], 
+            input_img_latents=reference_latents, 
+            input_image_sizes=input_data['input_image_sizes'], 
+            attention_mask=[attention_mask.to(self.device) for attention_mask in input_data["attention_mask"]], 
+            position_ids=[position_ids.to(self.device) for position_ids in input_data["position_ids"]], 
+            cfg_scale=cfg_scale,
+            img_cfg_scale=image_cfg_scale,
+            use_img_cfg=True,
+            use_kv_cache=use_kv_cache,
+            offload_model=False,
+        )
+        
+        # Denoise
+        self.load_models_to_device(['transformer'])
+        cache = [OmniGenCache(latents.size(-1)*latents.size(-2) // 4, offload_kv_cache) for _ in range(len(model_kwargs['input_ids']))] if use_kv_cache else None
+        for progress_id, timestep in enumerate(progress_bar_cmd(self.scheduler.timesteps)):
+            timestep = timestep.unsqueeze(0).repeat(latents.shape[0]).to(self.device)
+
+            # Forward
+            noise_pred, cache = self.transformer.forward_with_separate_cfg(latents, timestep, past_key_values=cache, **model_kwargs)
+
+            # Scheduler
+            latents = self.scheduler.step(noise_pred, self.scheduler.timesteps[progress_id], latents)
+
+            # Update KV cache
+            if progress_id == 0 and use_kv_cache:
+                num_tokens_for_img = latents.size(-1)*latents.size(-2) // 4
+                if isinstance(cache, list):
+                    model_kwargs['input_ids'] = [None] * len(cache)
+                else:
+                    model_kwargs['input_ids'] = None
+                model_kwargs['position_ids'] = self.crop_position_ids_for_cache(model_kwargs['position_ids'], num_tokens_for_img)
+                model_kwargs['attention_mask'] = self.crop_attention_mask_for_cache(model_kwargs['attention_mask'], num_tokens_for_img)
+
+            # UI
+            if progress_bar_st is not None:
+                progress_bar_st.progress(progress_id / len(self.scheduler.timesteps))
+        
+        # Decode image
+        del cache
+        self.load_models_to_device(['vae_decoder'])
+        image = self.decode_image(latents, tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+
+        # offload all models
+        self.load_models_to_device([])
+        return image

diffsynth/pipelines/pipeline_runner.py

@@ -0,0 +1,105 @@
+import os, torch, json
+from .sd_video import ModelManager, SDVideoPipeline, ControlNetConfigUnit
+from ..processors.sequencial_processor import SequencialProcessor
+from ..data import VideoData, save_frames, save_video
+
+
+
+class SDVideoPipelineRunner:
+    def __init__(self, in_streamlit=False):
+        self.in_streamlit = in_streamlit
+
+
+    def load_pipeline(self, model_list, textual_inversion_folder, device, lora_alphas, controlnet_units):
+        # Load models
+        model_manager = ModelManager(torch_dtype=torch.float16, device=device)
+        model_manager.load_models(model_list)
+        pipe = SDVideoPipeline.from_model_manager(
+            model_manager,
+            [
+                ControlNetConfigUnit(
+                    processor_id=unit["processor_id"],
+                    model_path=unit["model_path"],
+                    scale=unit["scale"]
+                ) for unit in controlnet_units
+            ]
+        )
+        textual_inversion_paths = []
+        for file_name in os.listdir(textual_inversion_folder):
+            if file_name.endswith(".pt") or file_name.endswith(".bin") or file_name.endswith(".pth") or file_name.endswith(".safetensors"):
+                textual_inversion_paths.append(os.path.join(textual_inversion_folder, file_name))
+        pipe.prompter.load_textual_inversions(textual_inversion_paths)
+        return model_manager, pipe
+    
+
+    def load_smoother(self, model_manager, smoother_configs):
+        smoother = SequencialProcessor.from_model_manager(model_manager, smoother_configs)
+        return smoother
+
+
+    def synthesize_video(self, model_manager, pipe, seed, smoother, **pipeline_inputs):
+        torch.manual_seed(seed)
+        if self.in_streamlit:
+            import streamlit as st
+            progress_bar_st = st.progress(0.0)
+            output_video = pipe(**pipeline_inputs, smoother=smoother, progress_bar_st=progress_bar_st)
+            progress_bar_st.progress(1.0)
+        else:
+            output_video = pipe(**pipeline_inputs, smoother=smoother)
+        model_manager.to("cpu")
+        return output_video
+
+
+    def load_video(self, video_file, image_folder, height, width, start_frame_id, end_frame_id):
+        video = VideoData(video_file=video_file, image_folder=image_folder, height=height, width=width)
+        if start_frame_id is None:
+            start_frame_id = 0
+        if end_frame_id is None:
+            end_frame_id = len(video)
+        frames = [video[i] for i in range(start_frame_id, end_frame_id)]
+        return frames
+
+
+    def add_data_to_pipeline_inputs(self, data, pipeline_inputs):
+        pipeline_inputs["input_frames"] = self.load_video(**data["input_frames"])
+        pipeline_inputs["num_frames"] = len(pipeline_inputs["input_frames"])
+        pipeline_inputs["width"], pipeline_inputs["height"] = pipeline_inputs["input_frames"][0].size
+        if len(data["controlnet_frames"]) > 0:
+            pipeline_inputs["controlnet_frames"] = [self.load_video(**unit) for unit in data["controlnet_frames"]]
+        return pipeline_inputs
+
+
+    def save_output(self, video, output_folder, fps, config):
+        os.makedirs(output_folder, exist_ok=True)
+        save_frames(video, os.path.join(output_folder, "frames"))
+        save_video(video, os.path.join(output_folder, "video.mp4"), fps=fps)
+        config["pipeline"]["pipeline_inputs"]["input_frames"] = []
+        config["pipeline"]["pipeline_inputs"]["controlnet_frames"] = []
+        with open(os.path.join(output_folder, "config.json"), 'w') as file:
+            json.dump(config, file, indent=4)
+
+
+    def run(self, config):
+        if self.in_streamlit:
+            import streamlit as st
+        if self.in_streamlit: st.markdown("Loading videos ...")
+        config["pipeline"]["pipeline_inputs"] = self.add_data_to_pipeline_inputs(config["data"], config["pipeline"]["pipeline_inputs"])
+        if self.in_streamlit: st.markdown("Loading videos ... done!")
+        if self.in_streamlit: st.markdown("Loading models ...")
+        model_manager, pipe = self.load_pipeline(**config["models"])
+        if self.in_streamlit: st.markdown("Loading models ... done!")
+        if "smoother_configs" in config:
+            if self.in_streamlit: st.markdown("Loading smoother ...")
+            smoother = self.load_smoother(model_manager, config["smoother_configs"])
+            if self.in_streamlit: st.markdown("Loading smoother ... done!")
+        else:
+            smoother = None
+        if self.in_streamlit: st.markdown("Synthesizing videos ...")
+        output_video = self.synthesize_video(model_manager, pipe, config["pipeline"]["seed"], smoother, **config["pipeline"]["pipeline_inputs"])
+        if self.in_streamlit: st.markdown("Synthesizing videos ... done!")
+        if self.in_streamlit: st.markdown("Saving videos ...")
+        self.save_output(output_video, config["data"]["output_folder"], config["data"]["fps"], config)
+        if self.in_streamlit: st.markdown("Saving videos ... done!")
+        if self.in_streamlit: st.markdown("Finished!")
+        video_file = open(os.path.join(os.path.join(config["data"]["output_folder"], "video.mp4")), 'rb')
+        if self.in_streamlit: st.video(video_file.read())

diffsynth/pipelines/sd3_image.py

@@ -0,0 +1,147 @@
+from ..models import ModelManager, SD3TextEncoder1, SD3TextEncoder2, SD3TextEncoder3, SD3DiT, SD3VAEDecoder, SD3VAEEncoder
+from ..prompters import SD3Prompter
+from ..schedulers import FlowMatchScheduler
+from .base import BasePipeline
+import torch
+from tqdm import tqdm
+
+
+
+class SD3ImagePipeline(BasePipeline):
+
+    def __init__(self, device="cuda", torch_dtype=torch.float16):
+        super().__init__(device=device, torch_dtype=torch_dtype, height_division_factor=16, width_division_factor=16)
+        self.scheduler = FlowMatchScheduler()
+        self.prompter = SD3Prompter()
+        # models
+        self.text_encoder_1: SD3TextEncoder1 = None
+        self.text_encoder_2: SD3TextEncoder2 = None
+        self.text_encoder_3: SD3TextEncoder3 = None
+        self.dit: SD3DiT = None
+        self.vae_decoder: SD3VAEDecoder = None
+        self.vae_encoder: SD3VAEEncoder = None
+        self.model_names = ['text_encoder_1', 'text_encoder_2', 'text_encoder_3', 'dit', 'vae_decoder', 'vae_encoder']
+
+
+    def denoising_model(self):
+        return self.dit
+
+
+    def fetch_models(self, model_manager: ModelManager, prompt_refiner_classes=[]):
+        self.text_encoder_1 = model_manager.fetch_model("sd3_text_encoder_1")
+        self.text_encoder_2 = model_manager.fetch_model("sd3_text_encoder_2")
+        self.text_encoder_3 = model_manager.fetch_model("sd3_text_encoder_3")
+        self.dit = model_manager.fetch_model("sd3_dit")
+        self.vae_decoder = model_manager.fetch_model("sd3_vae_decoder")
+        self.vae_encoder = model_manager.fetch_model("sd3_vae_encoder")
+        self.prompter.fetch_models(self.text_encoder_1, self.text_encoder_2, self.text_encoder_3)
+        self.prompter.load_prompt_refiners(model_manager, prompt_refiner_classes)
+
+
+    @staticmethod
+    def from_model_manager(model_manager: ModelManager, prompt_refiner_classes=[], device=None):
+        pipe = SD3ImagePipeline(
+            device=model_manager.device if device is None else device,
+            torch_dtype=model_manager.torch_dtype,
+        )
+        pipe.fetch_models(model_manager, prompt_refiner_classes)
+        return pipe
+    
+
+    def encode_image(self, image, tiled=False, tile_size=64, tile_stride=32):
+        latents = self.vae_encoder(image, tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+        return latents
+    
+
+    def decode_image(self, latent, tiled=False, tile_size=64, tile_stride=32):
+        image = self.vae_decoder(latent.to(self.device), tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+        image = self.vae_output_to_image(image)
+        return image
+    
+
+    def encode_prompt(self, prompt, positive=True, t5_sequence_length=77):
+        prompt_emb, pooled_prompt_emb = self.prompter.encode_prompt(
+            prompt, device=self.device, positive=positive, t5_sequence_length=t5_sequence_length
+        )
+        return {"prompt_emb": prompt_emb, "pooled_prompt_emb": pooled_prompt_emb}
+    
+
+    def prepare_extra_input(self, latents=None):
+        return {}
+    
+
+    @torch.no_grad()
+    def __call__(
+        self,
+        prompt,
+        local_prompts=[],
+        masks=[],
+        mask_scales=[],
+        negative_prompt="",
+        cfg_scale=7.5,
+        input_image=None,
+        denoising_strength=1.0,
+        height=1024,
+        width=1024,
+        num_inference_steps=20,
+        t5_sequence_length=77,
+        tiled=False,
+        tile_size=128,
+        tile_stride=64,
+        seed=None,
+        progress_bar_cmd=tqdm,
+        progress_bar_st=None,
+    ):
+        height, width = self.check_resize_height_width(height, width)
+        
+        # Tiler parameters
+        tiler_kwargs = {"tiled": tiled, "tile_size": tile_size, "tile_stride": tile_stride}
+
+        # Prepare scheduler
+        self.scheduler.set_timesteps(num_inference_steps, denoising_strength)
+
+        # Prepare latent tensors
+        if input_image is not None:
+            self.load_models_to_device(['vae_encoder'])
+            image = self.preprocess_image(input_image).to(device=self.device, dtype=self.torch_dtype)
+            latents = self.encode_image(image, **tiler_kwargs)
+            noise = self.generate_noise((1, 16, height//8, width//8), seed=seed, device=self.device, dtype=self.torch_dtype)
+            latents = self.scheduler.add_noise(latents, noise, timestep=self.scheduler.timesteps[0])
+        else:
+            latents = self.generate_noise((1, 16, height//8, width//8), seed=seed, device=self.device, dtype=self.torch_dtype)
+
+        # Encode prompts
+        self.load_models_to_device(['text_encoder_1', 'text_encoder_2', 'text_encoder_3'])
+        prompt_emb_posi = self.encode_prompt(prompt, positive=True, t5_sequence_length=t5_sequence_length)
+        prompt_emb_nega = self.encode_prompt(negative_prompt, positive=False, t5_sequence_length=t5_sequence_length)
+        prompt_emb_locals = [self.encode_prompt(prompt_local, t5_sequence_length=t5_sequence_length) for prompt_local in local_prompts]
+
+        # Denoise
+        self.load_models_to_device(['dit'])
+        for progress_id, timestep in enumerate(progress_bar_cmd(self.scheduler.timesteps)):
+            timestep = timestep.unsqueeze(0).to(self.device)
+
+            # Classifier-free guidance
+            inference_callback = lambda prompt_emb_posi: self.dit(
+                latents, timestep=timestep, **prompt_emb_posi, **tiler_kwargs,
+            )
+            noise_pred_posi = self.control_noise_via_local_prompts(prompt_emb_posi, prompt_emb_locals, masks, mask_scales, inference_callback)
+            noise_pred_nega = self.dit(
+                latents, timestep=timestep, **prompt_emb_nega, **tiler_kwargs,
+            )
+            noise_pred = noise_pred_nega + cfg_scale * (noise_pred_posi - noise_pred_nega)
+
+            # DDIM
+            latents = self.scheduler.step(noise_pred, self.scheduler.timesteps[progress_id], latents)
+
+            # UI
+            if progress_bar_st is not None:
+                progress_bar_st.progress(progress_id / len(self.scheduler.timesteps))
+        
+        # Decode image
+        self.load_models_to_device(['vae_decoder'])
+        image = self.decode_image(latents, tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+
+        # offload all models
+        self.load_models_to_device([])
+        return image

diffsynth/pipelines/sd_image.py

@@ -0,0 +1,191 @@
+from ..models import SDTextEncoder, SDUNet, SDVAEDecoder, SDVAEEncoder, SDIpAdapter, IpAdapterCLIPImageEmbedder
+from ..models.model_manager import ModelManager
+from ..controlnets import MultiControlNetManager, ControlNetUnit, ControlNetConfigUnit, Annotator
+from ..prompters import SDPrompter
+from ..schedulers import EnhancedDDIMScheduler
+from .base import BasePipeline
+from .dancer import lets_dance
+from typing import List
+import torch
+from tqdm import tqdm
+
+
+
+class SDImagePipeline(BasePipeline):
+
+    def __init__(self, device="cuda", torch_dtype=torch.float16):
+        super().__init__(device=device, torch_dtype=torch_dtype)
+        self.scheduler = EnhancedDDIMScheduler()
+        self.prompter = SDPrompter()
+        # models
+        self.text_encoder: SDTextEncoder = None
+        self.unet: SDUNet = None
+        self.vae_decoder: SDVAEDecoder = None
+        self.vae_encoder: SDVAEEncoder = None
+        self.controlnet: MultiControlNetManager = None
+        self.ipadapter_image_encoder: IpAdapterCLIPImageEmbedder = None
+        self.ipadapter: SDIpAdapter = None
+        self.model_names = ['text_encoder', 'unet', 'vae_decoder', 'vae_encoder', 'controlnet', 'ipadapter_image_encoder', 'ipadapter']
+
+
+    def denoising_model(self):
+        return self.unet
+
+
+    def fetch_models(self, model_manager: ModelManager, controlnet_config_units: List[ControlNetConfigUnit]=[], prompt_refiner_classes=[]):
+        # Main models
+        self.text_encoder = model_manager.fetch_model("sd_text_encoder")
+        self.unet = model_manager.fetch_model("sd_unet")
+        self.vae_decoder = model_manager.fetch_model("sd_vae_decoder")
+        self.vae_encoder = model_manager.fetch_model("sd_vae_encoder")
+        self.prompter.fetch_models(self.text_encoder)
+        self.prompter.load_prompt_refiners(model_manager, prompt_refiner_classes)
+
+        # ControlNets
+        controlnet_units = []
+        for config in controlnet_config_units:
+            controlnet_unit = ControlNetUnit(
+                Annotator(config.processor_id, device=self.device),
+                model_manager.fetch_model("sd_controlnet", config.model_path),
+                config.scale
+            )
+            controlnet_units.append(controlnet_unit)
+        self.controlnet = MultiControlNetManager(controlnet_units)
+
+        # IP-Adapters
+        self.ipadapter = model_manager.fetch_model("sd_ipadapter")
+        self.ipadapter_image_encoder = model_manager.fetch_model("sd_ipadapter_clip_image_encoder")
+
+
+    @staticmethod
+    def from_model_manager(model_manager: ModelManager, controlnet_config_units: List[ControlNetConfigUnit]=[], prompt_refiner_classes=[], device=None):
+        pipe = SDImagePipeline(
+            device=model_manager.device if device is None else device,
+            torch_dtype=model_manager.torch_dtype,
+        )
+        pipe.fetch_models(model_manager, controlnet_config_units, prompt_refiner_classes=[])
+        return pipe
+    
+
+    def encode_image(self, image, tiled=False, tile_size=64, tile_stride=32):
+        latents = self.vae_encoder(image, tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+        return latents
+    
+
+    def decode_image(self, latent, tiled=False, tile_size=64, tile_stride=32):
+        image = self.vae_decoder(latent.to(self.device), tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+        image = self.vae_output_to_image(image)
+        return image
+    
+
+    def encode_prompt(self, prompt, clip_skip=1, positive=True):
+        prompt_emb = self.prompter.encode_prompt(prompt, clip_skip=clip_skip, device=self.device, positive=positive)
+        return {"encoder_hidden_states": prompt_emb}
+    
+
+    def prepare_extra_input(self, latents=None):
+        return {}
+    
+
+    @torch.no_grad()
+    def __call__(
+        self,
+        prompt,
+        local_prompts=[],
+        masks=[],
+        mask_scales=[],
+        negative_prompt="",
+        cfg_scale=7.5,
+        clip_skip=1,
+        input_image=None,
+        ipadapter_images=None,
+        ipadapter_scale=1.0,
+        controlnet_image=None,
+        denoising_strength=1.0,
+        height=512,
+        width=512,
+        num_inference_steps=20,
+        tiled=False,
+        tile_size=64,
+        tile_stride=32,
+        seed=None,
+        progress_bar_cmd=tqdm,
+        progress_bar_st=None,
+    ):
+        height, width = self.check_resize_height_width(height, width)
+        
+        # Tiler parameters
+        tiler_kwargs = {"tiled": tiled, "tile_size": tile_size, "tile_stride": tile_stride}
+
+        # Prepare scheduler
+        self.scheduler.set_timesteps(num_inference_steps, denoising_strength)
+
+        # Prepare latent tensors
+        if input_image is not None:
+            self.load_models_to_device(['vae_encoder'])
+            image = self.preprocess_image(input_image).to(device=self.device, dtype=self.torch_dtype)
+            latents = self.encode_image(image, **tiler_kwargs)
+            noise = self.generate_noise((1, 4, height//8, width//8), seed=seed, device=self.device, dtype=self.torch_dtype)
+            latents = self.scheduler.add_noise(latents, noise, timestep=self.scheduler.timesteps[0])
+        else:
+            latents = self.generate_noise((1, 4, height//8, width//8), seed=seed, device=self.device, dtype=self.torch_dtype)
+
+        # Encode prompts
+        self.load_models_to_device(['text_encoder'])
+        prompt_emb_posi = self.encode_prompt(prompt, clip_skip=clip_skip, positive=True)
+        prompt_emb_nega = self.encode_prompt(negative_prompt, clip_skip=clip_skip, positive=False)
+        prompt_emb_locals = [self.encode_prompt(prompt_local, clip_skip=clip_skip, positive=True) for prompt_local in local_prompts]
+
+        # IP-Adapter
+        if ipadapter_images is not None:
+            self.load_models_to_device(['ipadapter_image_encoder'])
+            ipadapter_image_encoding = self.ipadapter_image_encoder(ipadapter_images)
+            self.load_models_to_device(['ipadapter'])
+            ipadapter_kwargs_list_posi = {"ipadapter_kwargs_list": self.ipadapter(ipadapter_image_encoding, scale=ipadapter_scale)}
+            ipadapter_kwargs_list_nega = {"ipadapter_kwargs_list": self.ipadapter(torch.zeros_like(ipadapter_image_encoding))}
+        else:
+            ipadapter_kwargs_list_posi, ipadapter_kwargs_list_nega = {"ipadapter_kwargs_list": {}}, {"ipadapter_kwargs_list": {}}
+
+        # Prepare ControlNets
+        if controlnet_image is not None:
+            self.load_models_to_device(['controlnet'])
+            controlnet_image = self.controlnet.process_image(controlnet_image).to(device=self.device, dtype=self.torch_dtype)
+            controlnet_image = controlnet_image.unsqueeze(1)
+            controlnet_kwargs = {"controlnet_frames": controlnet_image}
+        else:
+            controlnet_kwargs = {"controlnet_frames": None}
+        
+        # Denoise
+        self.load_models_to_device(['controlnet', 'unet'])
+        for progress_id, timestep in enumerate(progress_bar_cmd(self.scheduler.timesteps)):
+            timestep = timestep.unsqueeze(0).to(self.device)
+
+            # Classifier-free guidance
+            inference_callback = lambda prompt_emb_posi: lets_dance(
+                self.unet, motion_modules=None, controlnet=self.controlnet,
+                sample=latents, timestep=timestep, 
+                **prompt_emb_posi, **controlnet_kwargs, **tiler_kwargs, **ipadapter_kwargs_list_posi,
+                device=self.device,
+            )
+            noise_pred_posi = self.control_noise_via_local_prompts(prompt_emb_posi, prompt_emb_locals, masks, mask_scales, inference_callback)
+            noise_pred_nega = lets_dance(
+                self.unet, motion_modules=None, controlnet=self.controlnet,
+                sample=latents, timestep=timestep, **prompt_emb_nega, **controlnet_kwargs, **tiler_kwargs, **ipadapter_kwargs_list_nega,
+                device=self.device,
+            )
+            noise_pred = noise_pred_nega + cfg_scale * (noise_pred_posi - noise_pred_nega)
+
+            # DDIM
+            latents = self.scheduler.step(noise_pred, timestep, latents)
+
+            # UI
+            if progress_bar_st is not None:
+                progress_bar_st.progress(progress_id / len(self.scheduler.timesteps))
+        
+        # Decode image
+        self.load_models_to_device(['vae_decoder'])
+        image = self.decode_image(latents, tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+
+        # offload all models
+        self.load_models_to_device([])
+        return image

diffsynth/pipelines/sd_video.py

@@ -0,0 +1,269 @@
+from ..models import SDTextEncoder, SDUNet, SDVAEDecoder, SDVAEEncoder, SDIpAdapter, IpAdapterCLIPImageEmbedder, SDMotionModel
+from ..models.model_manager import ModelManager
+from ..controlnets import MultiControlNetManager, ControlNetUnit, ControlNetConfigUnit, Annotator
+from ..prompters import SDPrompter
+from ..schedulers import EnhancedDDIMScheduler
+from .sd_image import SDImagePipeline
+from .dancer import lets_dance
+from typing import List
+import torch
+from tqdm import tqdm
+
+
+
+def lets_dance_with_long_video(
+    unet: SDUNet,
+    motion_modules: SDMotionModel = None,
+    controlnet: MultiControlNetManager = None,
+    sample = None,
+    timestep = None,
+    encoder_hidden_states = None,
+    ipadapter_kwargs_list = {},
+    controlnet_frames = None,
+    unet_batch_size = 1,
+    controlnet_batch_size = 1,
+    cross_frame_attention = False,
+    tiled=False,
+    tile_size=64,
+    tile_stride=32,
+    device="cuda",
+    animatediff_batch_size=16,
+    animatediff_stride=8,
+):
+    num_frames = sample.shape[0]
+    hidden_states_output = [(torch.zeros(sample[0].shape, dtype=sample[0].dtype), 0) for i in range(num_frames)]
+
+    for batch_id in range(0, num_frames, animatediff_stride):
+        batch_id_ = min(batch_id + animatediff_batch_size, num_frames)
+
+        # process this batch
+        hidden_states_batch = lets_dance(
+            unet, motion_modules, controlnet,
+            sample[batch_id: batch_id_].to(device),
+            timestep,
+            encoder_hidden_states,
+            ipadapter_kwargs_list=ipadapter_kwargs_list,
+            controlnet_frames=controlnet_frames[:, batch_id: batch_id_].to(device) if controlnet_frames is not None else None,
+            unet_batch_size=unet_batch_size, controlnet_batch_size=controlnet_batch_size,
+            cross_frame_attention=cross_frame_attention,
+            tiled=tiled, tile_size=tile_size, tile_stride=tile_stride, device=device
+        ).cpu()
+
+        # update hidden_states
+        for i, hidden_states_updated in zip(range(batch_id, batch_id_), hidden_states_batch):
+            bias = max(1 - abs(i - (batch_id + batch_id_ - 1) / 2) / ((batch_id_ - batch_id - 1 + 1e-2) / 2), 1e-2)
+            hidden_states, num = hidden_states_output[i]
+            hidden_states = hidden_states * (num / (num + bias)) + hidden_states_updated * (bias / (num + bias))
+            hidden_states_output[i] = (hidden_states, num + bias)
+
+        if batch_id_ == num_frames:
+            break
+
+    # output
+    hidden_states = torch.stack([h for h, _ in hidden_states_output])
+    return hidden_states
+
+
+
+class SDVideoPipeline(SDImagePipeline):
+
+    def __init__(self, device="cuda", torch_dtype=torch.float16, use_original_animatediff=True):
+        super().__init__(device=device, torch_dtype=torch_dtype)
+        self.scheduler = EnhancedDDIMScheduler(beta_schedule="linear" if use_original_animatediff else "scaled_linear")
+        self.prompter = SDPrompter()
+        # models
+        self.text_encoder: SDTextEncoder = None
+        self.unet: SDUNet = None
+        self.vae_decoder: SDVAEDecoder = None
+        self.vae_encoder: SDVAEEncoder = None
+        self.controlnet: MultiControlNetManager = None
+        self.ipadapter_image_encoder: IpAdapterCLIPImageEmbedder = None
+        self.ipadapter: SDIpAdapter = None
+        self.motion_modules: SDMotionModel = None
+
+
+    def fetch_models(self, model_manager: ModelManager, controlnet_config_units: List[ControlNetConfigUnit]=[], prompt_refiner_classes=[]):
+        # Main models
+        self.text_encoder = model_manager.fetch_model("sd_text_encoder")
+        self.unet = model_manager.fetch_model("sd_unet")
+        self.vae_decoder = model_manager.fetch_model("sd_vae_decoder")
+        self.vae_encoder = model_manager.fetch_model("sd_vae_encoder")
+        self.prompter.fetch_models(self.text_encoder)
+        self.prompter.load_prompt_refiners(model_manager, prompt_refiner_classes)
+
+        # ControlNets
+        controlnet_units = []
+        for config in controlnet_config_units:
+            controlnet_unit = ControlNetUnit(
+                Annotator(config.processor_id, device=self.device),
+                model_manager.fetch_model("sd_controlnet", config.model_path),
+                config.scale
+            )
+            controlnet_units.append(controlnet_unit)
+        self.controlnet = MultiControlNetManager(controlnet_units)
+
+        # IP-Adapters
+        self.ipadapter = model_manager.fetch_model("sd_ipadapter")
+        self.ipadapter_image_encoder = model_manager.fetch_model("sd_ipadapter_clip_image_encoder")
+
+        # Motion Modules
+        self.motion_modules = model_manager.fetch_model("sd_motion_modules")
+        if self.motion_modules is None:
+            self.scheduler = EnhancedDDIMScheduler(beta_schedule="scaled_linear")
+
+
+    @staticmethod
+    def from_model_manager(model_manager: ModelManager, controlnet_config_units: List[ControlNetConfigUnit]=[], prompt_refiner_classes=[]):
+        pipe = SDVideoPipeline(
+            device=model_manager.device,
+            torch_dtype=model_manager.torch_dtype,
+        )
+        pipe.fetch_models(model_manager, controlnet_config_units, prompt_refiner_classes)
+        return pipe
+    
+
+    def decode_video(self, latents, tiled=False, tile_size=64, tile_stride=32):
+        images = [
+            self.decode_image(latents[frame_id: frame_id+1], tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+            for frame_id in range(latents.shape[0])
+        ]
+        return images
+    
+
+    def encode_video(self, processed_images, tiled=False, tile_size=64, tile_stride=32):
+        latents = []
+        for image in processed_images:
+            image = self.preprocess_image(image).to(device=self.device, dtype=self.torch_dtype)
+            latent = self.encode_image(image, tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+            latents.append(latent.cpu())
+        latents = torch.concat(latents, dim=0)
+        return latents
+    
+
+    @torch.no_grad()
+    def __call__(
+        self,
+        prompt,
+        negative_prompt="",
+        cfg_scale=7.5,
+        clip_skip=1,
+        num_frames=None,
+        input_frames=None,
+        ipadapter_images=None,
+        ipadapter_scale=1.0,
+        controlnet_frames=None,
+        denoising_strength=1.0,
+        height=512,
+        width=512,
+        num_inference_steps=20,
+        animatediff_batch_size = 16,
+        animatediff_stride = 8,
+        unet_batch_size = 1,
+        controlnet_batch_size = 1,
+        cross_frame_attention = False,
+        smoother=None,
+        smoother_progress_ids=[],
+        tiled=False,
+        tile_size=64,
+        tile_stride=32,
+        seed=None,
+        progress_bar_cmd=tqdm,
+        progress_bar_st=None,
+    ):
+        height, width = self.check_resize_height_width(height, width)
+        
+        # Tiler parameters, batch size ...
+        tiler_kwargs = {"tiled": tiled, "tile_size": tile_size, "tile_stride": tile_stride}
+        other_kwargs = {
+            "animatediff_batch_size": animatediff_batch_size, "animatediff_stride": animatediff_stride,
+            "unet_batch_size": unet_batch_size, "controlnet_batch_size": controlnet_batch_size,
+            "cross_frame_attention": cross_frame_attention,
+        }
+
+        # Prepare scheduler
+        self.scheduler.set_timesteps(num_inference_steps, denoising_strength)
+
+        # Prepare latent tensors
+        if self.motion_modules is None:
+            noise = self.generate_noise((1, 4, height//8, width//8), seed=seed, device="cpu", dtype=self.torch_dtype).repeat(num_frames, 1, 1, 1)
+        else:
+            noise = self.generate_noise((num_frames, 4, height//8, width//8), seed=seed, device="cpu", dtype=self.torch_dtype)
+        if input_frames is None or denoising_strength == 1.0:
+            latents = noise
+        else:
+            latents = self.encode_video(input_frames, **tiler_kwargs)
+            latents = self.scheduler.add_noise(latents, noise, timestep=self.scheduler.timesteps[0])
+
+        # Encode prompts
+        prompt_emb_posi = self.encode_prompt(prompt, clip_skip=clip_skip, positive=True)
+        prompt_emb_nega = self.encode_prompt(negative_prompt, clip_skip=clip_skip, positive=False)
+
+        # IP-Adapter
+        if ipadapter_images is not None:
+            ipadapter_image_encoding = self.ipadapter_image_encoder(ipadapter_images)
+            ipadapter_kwargs_list_posi = {"ipadapter_kwargs_list": self.ipadapter(ipadapter_image_encoding, scale=ipadapter_scale)}
+            ipadapter_kwargs_list_nega = {"ipadapter_kwargs_list": self.ipadapter(torch.zeros_like(ipadapter_image_encoding))}
+        else:
+            ipadapter_kwargs_list_posi, ipadapter_kwargs_list_nega = {"ipadapter_kwargs_list": {}}, {"ipadapter_kwargs_list": {}}
+
+        # Prepare ControlNets
+        if controlnet_frames is not None:
+            if isinstance(controlnet_frames[0], list):
+                controlnet_frames_ = []
+                for processor_id in range(len(controlnet_frames)):
+                    controlnet_frames_.append(
+                        torch.stack([
+                            self.controlnet.process_image(controlnet_frame, processor_id=processor_id).to(self.torch_dtype)
+                            for controlnet_frame in progress_bar_cmd(controlnet_frames[processor_id])
+                        ], dim=1)
+                    )
+                controlnet_frames = torch.concat(controlnet_frames_, dim=0)
+            else:
+                controlnet_frames = torch.stack([
+                    self.controlnet.process_image(controlnet_frame).to(self.torch_dtype)
+                    for controlnet_frame in progress_bar_cmd(controlnet_frames)
+                ], dim=1)
+            controlnet_kwargs = {"controlnet_frames": controlnet_frames}
+        else:
+            controlnet_kwargs = {"controlnet_frames": None}
+        
+        # Denoise
+        for progress_id, timestep in enumerate(progress_bar_cmd(self.scheduler.timesteps)):
+            timestep = timestep.unsqueeze(0).to(self.device)
+
+            # Classifier-free guidance
+            noise_pred_posi = lets_dance_with_long_video(
+                self.unet, motion_modules=self.motion_modules, controlnet=self.controlnet,
+                sample=latents, timestep=timestep,
+                **prompt_emb_posi, **controlnet_kwargs, **ipadapter_kwargs_list_posi, **other_kwargs, **tiler_kwargs,
+                device=self.device,
+            )
+            noise_pred_nega = lets_dance_with_long_video(
+                self.unet, motion_modules=self.motion_modules, controlnet=self.controlnet,
+                sample=latents, timestep=timestep,
+                **prompt_emb_nega, **controlnet_kwargs, **ipadapter_kwargs_list_nega, **other_kwargs, **tiler_kwargs,
+                device=self.device,
+            )
+            noise_pred = noise_pred_nega + cfg_scale * (noise_pred_posi - noise_pred_nega)
+
+            # DDIM and smoother
+            if smoother is not None and progress_id in smoother_progress_ids:
+                rendered_frames = self.scheduler.step(noise_pred, timestep, latents, to_final=True)
+                rendered_frames = self.decode_video(rendered_frames)
+                rendered_frames = smoother(rendered_frames, original_frames=input_frames)
+                target_latents = self.encode_video(rendered_frames)
+                noise_pred = self.scheduler.return_to_timestep(timestep, latents, target_latents)
+            latents = self.scheduler.step(noise_pred, timestep, latents)
+
+            # UI
+            if progress_bar_st is not None:
+                progress_bar_st.progress(progress_id / len(self.scheduler.timesteps))
+        
+        # Decode image
+        output_frames = self.decode_video(latents, **tiler_kwargs)
+
+        # Post-process
+        if smoother is not None and (num_inference_steps in smoother_progress_ids or -1 in smoother_progress_ids):
+            output_frames = smoother(output_frames, original_frames=input_frames)
+
+        return output_frames

diffsynth/pipelines/sdxl_video.py

@@ -0,0 +1,226 @@
+from ..models import SDXLTextEncoder, SDXLTextEncoder2, SDXLUNet, SDXLVAEDecoder, SDXLVAEEncoder, SDXLIpAdapter, IpAdapterXLCLIPImageEmbedder, SDXLMotionModel
+from ..models.kolors_text_encoder import ChatGLMModel
+from ..models.model_manager import ModelManager
+from ..controlnets import MultiControlNetManager, ControlNetUnit, ControlNetConfigUnit, Annotator
+from ..prompters import SDXLPrompter, KolorsPrompter
+from ..schedulers import EnhancedDDIMScheduler
+from .sdxl_image import SDXLImagePipeline
+from .dancer import lets_dance_xl
+from typing import List
+import torch
+from tqdm import tqdm
+
+
+
+class SDXLVideoPipeline(SDXLImagePipeline):
+
+    def __init__(self, device="cuda", torch_dtype=torch.float16, use_original_animatediff=True):
+        super().__init__(device=device, torch_dtype=torch_dtype)
+        self.scheduler = EnhancedDDIMScheduler(beta_schedule="linear" if use_original_animatediff else "scaled_linear")
+        self.prompter = SDXLPrompter()
+        # models
+        self.text_encoder: SDXLTextEncoder = None
+        self.text_encoder_2: SDXLTextEncoder2 = None
+        self.text_encoder_kolors: ChatGLMModel = None
+        self.unet: SDXLUNet = None
+        self.vae_decoder: SDXLVAEDecoder = None
+        self.vae_encoder: SDXLVAEEncoder = None
+        # self.controlnet: MultiControlNetManager = None (TODO)
+        self.ipadapter_image_encoder: IpAdapterXLCLIPImageEmbedder = None
+        self.ipadapter: SDXLIpAdapter = None
+        self.motion_modules: SDXLMotionModel = None
+
+
+    def fetch_models(self, model_manager: ModelManager, controlnet_config_units: List[ControlNetConfigUnit]=[], prompt_refiner_classes=[]):
+        # Main models
+        self.text_encoder = model_manager.fetch_model("sdxl_text_encoder")
+        self.text_encoder_2 = model_manager.fetch_model("sdxl_text_encoder_2")
+        self.text_encoder_kolors = model_manager.fetch_model("kolors_text_encoder")
+        self.unet = model_manager.fetch_model("sdxl_unet")
+        self.vae_decoder = model_manager.fetch_model("sdxl_vae_decoder")
+        self.vae_encoder = model_manager.fetch_model("sdxl_vae_encoder")
+        self.prompter.fetch_models(self.text_encoder)
+        self.prompter.load_prompt_refiners(model_manager, prompt_refiner_classes)
+
+        # ControlNets (TODO)
+
+        # IP-Adapters
+        self.ipadapter = model_manager.fetch_model("sdxl_ipadapter")
+        self.ipadapter_image_encoder = model_manager.fetch_model("sdxl_ipadapter_clip_image_encoder")
+
+        # Motion Modules
+        self.motion_modules = model_manager.fetch_model("sdxl_motion_modules")
+        if self.motion_modules is None:
+            self.scheduler = EnhancedDDIMScheduler(beta_schedule="scaled_linear")
+
+        # Kolors
+        if self.text_encoder_kolors is not None:
+            print("Switch to Kolors. The prompter will be replaced.")
+            self.prompter = KolorsPrompter()
+            self.prompter.fetch_models(self.text_encoder_kolors)
+            # The schedulers of AniamteDiff and Kolors are incompatible. We align it with AniamteDiff.
+            if self.motion_modules is None:
+                self.scheduler = EnhancedDDIMScheduler(beta_end=0.014, num_train_timesteps=1100)
+        else:
+            self.prompter.fetch_models(self.text_encoder, self.text_encoder_2)
+
+
+    @staticmethod
+    def from_model_manager(model_manager: ModelManager, controlnet_config_units: List[ControlNetConfigUnit]=[], prompt_refiner_classes=[]):
+        pipe = SDXLVideoPipeline(
+            device=model_manager.device,
+            torch_dtype=model_manager.torch_dtype,
+        )
+        pipe.fetch_models(model_manager, controlnet_config_units, prompt_refiner_classes)
+        return pipe
+    
+
+    def decode_video(self, latents, tiled=False, tile_size=64, tile_stride=32):
+        images = [
+            self.decode_image(latents[frame_id: frame_id+1], tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+            for frame_id in range(latents.shape[0])
+        ]
+        return images
+    
+
+    def encode_video(self, processed_images, tiled=False, tile_size=64, tile_stride=32):
+        latents = []
+        for image in processed_images:
+            image = self.preprocess_image(image).to(device=self.device, dtype=self.torch_dtype)
+            latent = self.encode_image(image, tiled=tiled, tile_size=tile_size, tile_stride=tile_stride)
+            latents.append(latent.cpu())
+        latents = torch.concat(latents, dim=0)
+        return latents
+    
+
+    @torch.no_grad()
+    def __call__(
+        self,
+        prompt,
+        negative_prompt="",
+        cfg_scale=7.5,
+        clip_skip=1,
+        num_frames=None,
+        input_frames=None,
+        ipadapter_images=None,
+        ipadapter_scale=1.0,
+        ipadapter_use_instant_style=False,
+        controlnet_frames=None,
+        denoising_strength=1.0,
+        height=512,
+        width=512,
+        num_inference_steps=20,
+        animatediff_batch_size = 16,
+        animatediff_stride = 8,
+        unet_batch_size = 1,
+        controlnet_batch_size = 1,
+        cross_frame_attention = False,
+        smoother=None,
+        smoother_progress_ids=[],
+        tiled=False,
+        tile_size=64,
+        tile_stride=32,
+        seed=None,
+        progress_bar_cmd=tqdm,
+        progress_bar_st=None,
+    ):
+        height, width = self.check_resize_height_width(height, width)
+        
+        # Tiler parameters, batch size ...
+        tiler_kwargs = {"tiled": tiled, "tile_size": tile_size, "tile_stride": tile_stride}
+
+        # Prepare scheduler
+        self.scheduler.set_timesteps(num_inference_steps, denoising_strength)
+
+        # Prepare latent tensors
+        if self.motion_modules is None:
+            noise = self.generate_noise((1, 4, height//8, width//8), seed=seed, device="cpu", dtype=self.torch_dtype).repeat(num_frames, 1, 1, 1)
+        else:
+            noise = self.generate_noise((num_frames, 4, height//8, width//8), seed=seed, device="cpu", dtype=self.torch_dtype)
+        if input_frames is None or denoising_strength == 1.0:
+            latents = noise
+        else:
+            latents = self.encode_video(input_frames, **tiler_kwargs)
+            latents = self.scheduler.add_noise(latents, noise, timestep=self.scheduler.timesteps[0])
+        latents = latents.to(self.device) # will be deleted for supporting long videos
+
+        # Encode prompts
+        prompt_emb_posi = self.encode_prompt(prompt, clip_skip=clip_skip, positive=True)
+        prompt_emb_nega = self.encode_prompt(negative_prompt, clip_skip=clip_skip, positive=False)
+
+        # IP-Adapter
+        if ipadapter_images is not None:
+            if ipadapter_use_instant_style:
+                self.ipadapter.set_less_adapter()
+            else:
+                self.ipadapter.set_full_adapter()
+            ipadapter_image_encoding = self.ipadapter_image_encoder(ipadapter_images)
+            ipadapter_kwargs_list_posi = {"ipadapter_kwargs_list": self.ipadapter(ipadapter_image_encoding, scale=ipadapter_scale)}
+            ipadapter_kwargs_list_nega = {"ipadapter_kwargs_list": self.ipadapter(torch.zeros_like(ipadapter_image_encoding))}
+        else:
+            ipadapter_kwargs_list_posi, ipadapter_kwargs_list_nega = {"ipadapter_kwargs_list": {}}, {"ipadapter_kwargs_list": {}}
+
+        # Prepare ControlNets
+        if controlnet_frames is not None:
+            if isinstance(controlnet_frames[0], list):
+                controlnet_frames_ = []
+                for processor_id in range(len(controlnet_frames)):
+                    controlnet_frames_.append(
+                        torch.stack([
+                            self.controlnet.process_image(controlnet_frame, processor_id=processor_id).to(self.torch_dtype)
+                            for controlnet_frame in progress_bar_cmd(controlnet_frames[processor_id])
+                        ], dim=1)
+                    )
+                controlnet_frames = torch.concat(controlnet_frames_, dim=0)
+            else:
+                controlnet_frames = torch.stack([
+                    self.controlnet.process_image(controlnet_frame).to(self.torch_dtype)
+                    for controlnet_frame in progress_bar_cmd(controlnet_frames)
+                ], dim=1)
+            controlnet_kwargs = {"controlnet_frames": controlnet_frames}
+        else:
+            controlnet_kwargs = {"controlnet_frames": None}
+
+        # Prepare extra input
+        extra_input = self.prepare_extra_input(latents)
+        
+        # Denoise
+        for progress_id, timestep in enumerate(progress_bar_cmd(self.scheduler.timesteps)):
+            timestep = timestep.unsqueeze(0).to(self.device)
+
+            # Classifier-free guidance
+            noise_pred_posi = lets_dance_xl(
+                self.unet, motion_modules=self.motion_modules, controlnet=None,
+                sample=latents, timestep=timestep,
+                **prompt_emb_posi, **controlnet_kwargs, **ipadapter_kwargs_list_posi, **extra_input, **tiler_kwargs,
+                device=self.device,
+            )
+            noise_pred_nega = lets_dance_xl(
+                self.unet, motion_modules=self.motion_modules, controlnet=None,
+                sample=latents, timestep=timestep,
+                **prompt_emb_nega, **controlnet_kwargs, **ipadapter_kwargs_list_nega, **extra_input, **tiler_kwargs,
+                device=self.device,
+            )
+            noise_pred = noise_pred_nega + cfg_scale * (noise_pred_posi - noise_pred_nega)
+
+            # DDIM and smoother
+            if smoother is not None and progress_id in smoother_progress_ids:
+                rendered_frames = self.scheduler.step(noise_pred, timestep, latents, to_final=True)
+                rendered_frames = self.decode_video(rendered_frames)
+                rendered_frames = smoother(rendered_frames, original_frames=input_frames)
+                target_latents = self.encode_video(rendered_frames)
+                noise_pred = self.scheduler.return_to_timestep(timestep, latents, target_latents)
+            latents = self.scheduler.step(noise_pred, timestep, latents)
+
+            # UI
+            if progress_bar_st is not None:
+                progress_bar_st.progress(progress_id / len(self.scheduler.timesteps))
+        
+        # Decode image
+        output_frames = self.decode_video(latents, **tiler_kwargs)
+
+        # Post-process
+        if smoother is not None and (num_inference_steps in smoother_progress_ids or -1 in smoother_progress_ids):
+            output_frames = smoother(output_frames, original_frames=input_frames)
+
+        return output_frames

diffsynth/pipelines/step_video.py

@@ -0,0 +1,209 @@
+from ..models import ModelManager
+from ..models.hunyuan_dit_text_encoder import HunyuanDiTCLIPTextEncoder
+from ..models.stepvideo_text_encoder import STEP1TextEncoder
+from ..models.stepvideo_dit import StepVideoModel
+from ..models.stepvideo_vae import StepVideoVAE
+from ..schedulers.flow_match import FlowMatchScheduler
+from .base import BasePipeline
+from ..prompters import StepVideoPrompter
+import torch
+from einops import rearrange
+import numpy as np
+from PIL import Image
+from ..vram_management import enable_vram_management, AutoWrappedModule, AutoWrappedLinear
+from transformers.models.bert.modeling_bert import BertEmbeddings
+from ..models.stepvideo_dit import RMSNorm
+from ..models.stepvideo_vae import CausalConv, CausalConvAfterNorm, Upsample2D, BaseGroupNorm
+
+
+
+class StepVideoPipeline(BasePipeline):
+
+    def __init__(self, device="cuda", torch_dtype=torch.float16):
+        super().__init__(device=device, torch_dtype=torch_dtype)
+        self.scheduler = FlowMatchScheduler(sigma_min=0.0, extra_one_step=True, shift=13.0, reverse_sigmas=True, num_train_timesteps=1)
+        self.prompter = StepVideoPrompter()
+        self.text_encoder_1: HunyuanDiTCLIPTextEncoder = None
+        self.text_encoder_2: STEP1TextEncoder = None
+        self.dit: StepVideoModel = None
+        self.vae: StepVideoVAE = None
+        self.model_names = ['text_encoder_1', 'text_encoder_2', 'dit', 'vae']
+
+
+    def enable_vram_management(self, num_persistent_param_in_dit=None):
+        dtype = next(iter(self.text_encoder_1.parameters())).dtype
+        enable_vram_management(
+            self.text_encoder_1,
+            module_map = {
+                torch.nn.Linear: AutoWrappedLinear,
+                BertEmbeddings: AutoWrappedModule,
+                torch.nn.LayerNorm: AutoWrappedModule,
+            },
+            module_config = dict(
+                offload_dtype=dtype,
+                offload_device="cpu",
+                onload_dtype=dtype,
+                onload_device="cpu",
+                computation_dtype=torch.float32,
+                computation_device=self.device,
+            ),
+        )
+        dtype = next(iter(self.text_encoder_2.parameters())).dtype
+        enable_vram_management(
+            self.text_encoder_2,
+            module_map = {
+                torch.nn.Linear: AutoWrappedLinear,
+                RMSNorm: AutoWrappedModule,
+                torch.nn.Embedding: AutoWrappedModule,
+            },
+            module_config = dict(
+                offload_dtype=dtype,
+                offload_device="cpu",
+                onload_dtype=dtype,
+                onload_device="cpu",
+                computation_dtype=self.torch_dtype,
+                computation_device=self.device,
+            ),
+        )
+        dtype = next(iter(self.dit.parameters())).dtype
+        enable_vram_management(
+            self.dit,
+            module_map = {
+                torch.nn.Linear: AutoWrappedLinear,
+                torch.nn.Conv2d: AutoWrappedModule,
+                torch.nn.LayerNorm: AutoWrappedModule,
+                RMSNorm: AutoWrappedModule,
+            },
+            module_config = dict(
+                offload_dtype=dtype,
+                offload_device="cpu",
+                onload_dtype=dtype,
+                onload_device=self.device,
+                computation_dtype=self.torch_dtype,
+                computation_device=self.device,
+            ),
+            max_num_param=num_persistent_param_in_dit,
+            overflow_module_config = dict(
+                offload_dtype=dtype,
+                offload_device="cpu",
+                onload_dtype=dtype,
+                onload_device="cpu",
+                computation_dtype=self.torch_dtype,
+                computation_device=self.device,
+            ),
+        )
+        dtype = next(iter(self.vae.parameters())).dtype
+        enable_vram_management(
+            self.vae,
+            module_map = {
+                torch.nn.Linear: AutoWrappedLinear,
+                torch.nn.Conv3d: AutoWrappedModule,
+                CausalConv: AutoWrappedModule,
+                CausalConvAfterNorm: AutoWrappedModule,
+                Upsample2D: AutoWrappedModule,
+                BaseGroupNorm: AutoWrappedModule,
+            },
+            module_config = dict(
+                offload_dtype=dtype,
+                offload_device="cpu",
+                onload_dtype=dtype,
+                onload_device="cpu",
+                computation_dtype=self.torch_dtype,
+                computation_device=self.device,
+            ),
+        )
+        self.enable_cpu_offload()
+
+
+    def fetch_models(self, model_manager: ModelManager):
+        self.text_encoder_1 = model_manager.fetch_model("hunyuan_dit_clip_text_encoder")
+        self.text_encoder_2 = model_manager.fetch_model("stepvideo_text_encoder_2")
+        self.dit = model_manager.fetch_model("stepvideo_dit")
+        self.vae = model_manager.fetch_model("stepvideo_vae")
+        self.prompter.fetch_models(self.text_encoder_1, self.text_encoder_2)
+
+
+    @staticmethod
+    def from_model_manager(model_manager: ModelManager, torch_dtype=None, device=None):
+        if device is None: device = model_manager.device
+        if torch_dtype is None: torch_dtype = model_manager.torch_dtype
+        pipe = StepVideoPipeline(device=device, torch_dtype=torch_dtype)
+        pipe.fetch_models(model_manager)
+        return pipe
+
+
+    def encode_prompt(self, prompt, positive=True):
+        clip_embeds, llm_embeds, llm_mask = self.prompter.encode_prompt(prompt, device=self.device, positive=positive)
+        clip_embeds = clip_embeds.to(dtype=self.torch_dtype, device=self.device)
+        llm_embeds = llm_embeds.to(dtype=self.torch_dtype, device=self.device)
+        llm_mask = llm_mask.to(dtype=self.torch_dtype, device=self.device)
+        return {"encoder_hidden_states_2": clip_embeds, "encoder_hidden_states": llm_embeds, "encoder_attention_mask": llm_mask}
+
+
+    def tensor2video(self, frames):
+        frames = rearrange(frames, "C T H W -> T H W C")
+        frames = ((frames.float() + 1) * 127.5).clip(0, 255).cpu().numpy().astype(np.uint8)
+        frames = [Image.fromarray(frame) for frame in frames]
+        return frames
+
+
+    @torch.no_grad()
+    def __call__(
+        self,
+        prompt,
+        negative_prompt="",
+        input_video=None,
+        denoising_strength=1.0,
+        seed=None,
+        rand_device="cpu",
+        height=544,
+        width=992,
+        num_frames=204,
+        cfg_scale=9.0,
+        num_inference_steps=30,
+        tiled=True,
+        tile_size=(34, 34),
+        tile_stride=(16, 16),
+        smooth_scale=0.6,
+        progress_bar_cmd=lambda x: x,
+        progress_bar_st=None,
+    ):
+        # Tiler parameters
+        tiler_kwargs = {"tiled": tiled, "tile_size": tile_size, "tile_stride": tile_stride}
+
+        # Scheduler
+        self.scheduler.set_timesteps(num_inference_steps, denoising_strength)
+
+        # Initialize noise
+        latents = self.generate_noise((1, max(num_frames//17*3, 1), 64, height//16, width//16), seed=seed, device=rand_device, dtype=self.torch_dtype).to(self.device)
+        
+        # Encode prompts
+        self.load_models_to_device(["text_encoder_1", "text_encoder_2"])
+        prompt_emb_posi = self.encode_prompt(prompt, positive=True)
+        if cfg_scale != 1.0:
+            prompt_emb_nega = self.encode_prompt(negative_prompt, positive=False)
+
+        # Denoise
+        self.load_models_to_device(["dit"])
+        for progress_id, timestep in enumerate(progress_bar_cmd(self.scheduler.timesteps)):
+            timestep = timestep.unsqueeze(0).to(dtype=self.torch_dtype, device=self.device)
+            print(f"Step {progress_id + 1} / {len(self.scheduler.timesteps)}")
+
+            # Inference
+            noise_pred_posi = self.dit(latents, timestep=timestep, **prompt_emb_posi)
+            if cfg_scale != 1.0:
+                noise_pred_nega = self.dit(latents, timestep=timestep, **prompt_emb_nega)
+                noise_pred = noise_pred_nega + cfg_scale * (noise_pred_posi - noise_pred_nega)
+            else:
+                noise_pred = noise_pred_posi
+
+            # Scheduler
+            latents = self.scheduler.step(noise_pred, self.scheduler.timesteps[progress_id], latents)
+
+        # Decode
+        self.load_models_to_device(['vae'])
+        frames = self.vae.decode(latents, device=self.device, smooth_scale=smooth_scale, **tiler_kwargs)
+        self.load_models_to_device([])
+        frames = self.tensor2video(frames[0])
+
+        return frames

diffsynth/pipelines/svd_video.py

@@ -0,0 +1,300 @@
+from ..models import ModelManager, SVDImageEncoder, SVDUNet, SVDVAEEncoder, SVDVAEDecoder
+from ..schedulers import ContinuousODEScheduler
+from .base import BasePipeline
+import torch
+from tqdm import tqdm
+from PIL import Image
+import numpy as np
+from einops import rearrange, repeat
+
+
+
+class SVDVideoPipeline(BasePipeline):
+
+    def __init__(self, device="cuda", torch_dtype=torch.float16):
+        super().__init__(device=device, torch_dtype=torch_dtype)
+        self.scheduler = ContinuousODEScheduler()
+        # models
+        self.image_encoder: SVDImageEncoder = None
+        self.unet: SVDUNet = None
+        self.vae_encoder: SVDVAEEncoder = None
+        self.vae_decoder: SVDVAEDecoder = None
+    
+
+    def fetch_models(self, model_manager: ModelManager):
+        self.image_encoder = model_manager.fetch_model("svd_image_encoder")
+        self.unet = model_manager.fetch_model("svd_unet")
+        self.vae_encoder = model_manager.fetch_model("svd_vae_encoder")
+        self.vae_decoder = model_manager.fetch_model("svd_vae_decoder")
+
+
+    @staticmethod
+    def from_model_manager(model_manager: ModelManager, **kwargs):
+        pipe = SVDVideoPipeline(
+            device=model_manager.device,
+            torch_dtype=model_manager.torch_dtype
+        )
+        pipe.fetch_models(model_manager)
+        return pipe
+    
+
+    def encode_image_with_clip(self, image):
+        image = self.preprocess_image(image).to(device=self.device, dtype=self.torch_dtype)
+        image = SVDCLIPImageProcessor().resize_with_antialiasing(image, (224, 224))
+        image = (image + 1.0) / 2.0
+        mean = torch.tensor([0.48145466, 0.4578275, 0.40821073]).reshape(1, 3, 1, 1).to(device=self.device, dtype=self.torch_dtype)
+        std = torch.tensor([0.26862954, 0.26130258, 0.27577711]).reshape(1, 3, 1, 1).to(device=self.device, dtype=self.torch_dtype)
+        image = (image - mean) / std
+        image_emb = self.image_encoder(image)
+        return image_emb
+    
+
+    def encode_image_with_vae(self, image, noise_aug_strength, seed=None):
+        image = self.preprocess_image(image).to(device=self.device, dtype=self.torch_dtype)
+        noise = self.generate_noise(image.shape, seed=seed, device=self.device, dtype=self.torch_dtype)
+        image = image + noise_aug_strength * noise
+        image_emb = self.vae_encoder(image) / self.vae_encoder.scaling_factor
+        return image_emb
+    
+
+    def encode_video_with_vae(self, video):
+        video = torch.concat([self.preprocess_image(frame) for frame in video], dim=0)
+        video = rearrange(video, "T C H W -> 1 C T H W")
+        video = video.to(device=self.device, dtype=self.torch_dtype)
+        latents = self.vae_encoder.encode_video(video)
+        latents = rearrange(latents[0], "C T H W -> T C H W")
+        return latents
+    
+
+    def tensor2video(self, frames):
+        frames = rearrange(frames, "C T H W -> T H W C")
+        frames = ((frames.float() + 1) * 127.5).clip(0, 255).cpu().numpy().astype(np.uint8)
+        frames = [Image.fromarray(frame) for frame in frames]
+        return frames
+    
+
+    def calculate_noise_pred(
+        self,
+        latents,
+        timestep,
+        add_time_id,
+        cfg_scales,
+        image_emb_vae_posi, image_emb_clip_posi,
+        image_emb_vae_nega, image_emb_clip_nega
+    ):
+        # Positive side
+        noise_pred_posi = self.unet(
+            torch.cat([latents, image_emb_vae_posi], dim=1),
+            timestep, image_emb_clip_posi, add_time_id
+        )
+        # Negative side
+        noise_pred_nega = self.unet(
+            torch.cat([latents, image_emb_vae_nega], dim=1),
+            timestep, image_emb_clip_nega, add_time_id
+        )
+
+        # Classifier-free guidance
+        noise_pred = noise_pred_nega + cfg_scales * (noise_pred_posi - noise_pred_nega)
+
+        return noise_pred
+    
+
+    def post_process_latents(self, latents, post_normalize=True, contrast_enhance_scale=1.0):
+        if post_normalize:
+            mean, std = latents.mean(), latents.std()
+            latents = (latents - latents.mean(dim=[1, 2, 3], keepdim=True)) / latents.std(dim=[1, 2, 3], keepdim=True) * std + mean
+        latents = latents * contrast_enhance_scale
+        return latents
+
+
+    @torch.no_grad()
+    def __call__(
+        self,
+        input_image=None,
+        input_video=None,
+        mask_frames=[],
+        mask_frame_ids=[],
+        min_cfg_scale=1.0,
+        max_cfg_scale=3.0,
+        denoising_strength=1.0,
+        num_frames=25,
+        height=576,
+        width=1024,
+        fps=7,
+        motion_bucket_id=127,
+        noise_aug_strength=0.02,
+        num_inference_steps=20,
+        post_normalize=True,
+        contrast_enhance_scale=1.2,
+        seed=None,
+        progress_bar_cmd=tqdm,
+        progress_bar_st=None,
+    ):
+        height, width = self.check_resize_height_width(height, width)
+        
+        # Prepare scheduler
+        self.scheduler.set_timesteps(num_inference_steps, denoising_strength=denoising_strength)
+
+        # Prepare latent tensors
+        noise = self.generate_noise((num_frames, 4, height//8, width//8), seed=seed, device=self.device, dtype=self.torch_dtype)
+        if denoising_strength == 1.0:
+            latents = noise.clone()
+        else:
+            latents = self.encode_video_with_vae(input_video)
+            latents = self.scheduler.add_noise(latents, noise, self.scheduler.timesteps[0])
+
+        # Prepare mask frames
+        if len(mask_frames) > 0:
+            mask_latents = self.encode_video_with_vae(mask_frames)
+
+        # Encode image
+        image_emb_clip_posi = self.encode_image_with_clip(input_image)
+        image_emb_clip_nega = torch.zeros_like(image_emb_clip_posi)
+        image_emb_vae_posi = repeat(self.encode_image_with_vae(input_image, noise_aug_strength, seed=seed), "B C H W -> (B T) C H W", T=num_frames)
+        image_emb_vae_nega = torch.zeros_like(image_emb_vae_posi)
+
+        # Prepare classifier-free guidance
+        cfg_scales = torch.linspace(min_cfg_scale, max_cfg_scale, num_frames)
+        cfg_scales = cfg_scales.reshape(num_frames, 1, 1, 1).to(device=self.device, dtype=self.torch_dtype)
+        
+        # Prepare positional id
+        add_time_id = torch.tensor([[fps-1, motion_bucket_id, noise_aug_strength]], device=self.device)
+
+        # Denoise
+        for progress_id, timestep in enumerate(progress_bar_cmd(self.scheduler.timesteps)):
+
+            # Mask frames
+            for frame_id, mask_frame_id in enumerate(mask_frame_ids):
+                latents[mask_frame_id] = self.scheduler.add_noise(mask_latents[frame_id], noise[mask_frame_id], timestep)
+
+            # Fetch model output
+            noise_pred = self.calculate_noise_pred(
+                latents, timestep, add_time_id, cfg_scales,
+                image_emb_vae_posi, image_emb_clip_posi, image_emb_vae_nega, image_emb_clip_nega
+            )
+
+            # Forward Euler
+            latents = self.scheduler.step(noise_pred, timestep, latents)
+            
+            # Update progress bar
+            if progress_bar_st is not None:
+                progress_bar_st.progress(progress_id / len(self.scheduler.timesteps))
+
+        # Decode image
+        latents = self.post_process_latents(latents, post_normalize=post_normalize, contrast_enhance_scale=contrast_enhance_scale)
+        video = self.vae_decoder.decode_video(latents, progress_bar=progress_bar_cmd)
+        video = self.tensor2video(video)
+
+        return video
+
+
+
+class SVDCLIPImageProcessor:
+    def __init__(self):
+        pass
+
+    def resize_with_antialiasing(self, input, size, interpolation="bicubic", align_corners=True):
+        h, w = input.shape[-2:]
+        factors = (h / size[0], w / size[1])
+
+        # First, we have to determine sigma
+        # Taken from skimage: https://github.com/scikit-image/scikit-image/blob/v0.19.2/skimage/transform/_warps.py#L171
+        sigmas = (
+            max((factors[0] - 1.0) / 2.0, 0.001),
+            max((factors[1] - 1.0) / 2.0, 0.001),
+        )
+
+        # Now kernel size. Good results are for 3 sigma, but that is kind of slow. Pillow uses 1 sigma
+        # https://github.com/python-pillow/Pillow/blob/master/src/libImaging/Resample.c#L206
+        # But they do it in the 2 passes, which gives better results. Let's try 2 sigmas for now
+        ks = int(max(2.0 * 2 * sigmas[0], 3)), int(max(2.0 * 2 * sigmas[1], 3))
+
+        # Make sure it is odd
+        if (ks[0] % 2) == 0:
+            ks = ks[0] + 1, ks[1]
+
+        if (ks[1] % 2) == 0:
+            ks = ks[0], ks[1] + 1
+
+        input = self._gaussian_blur2d(input, ks, sigmas)
+
+        output = torch.nn.functional.interpolate(input, size=size, mode=interpolation, align_corners=align_corners)
+        return output
+
+
+    def _compute_padding(self, kernel_size):
+        """Compute padding tuple."""
+        # 4 or 6 ints:  (padding_left, padding_right,padding_top,padding_bottom)
+        # https://pytorch.org/docs/stable/nn.html#torch.nn.functional.pad
+        if len(kernel_size) < 2:
+            raise AssertionError(kernel_size)
+        computed = [k - 1 for k in kernel_size]
+
+        # for even kernels we need to do asymmetric padding :(
+        out_padding = 2 * len(kernel_size) * [0]
+
+        for i in range(len(kernel_size)):
+            computed_tmp = computed[-(i + 1)]
+
+            pad_front = computed_tmp // 2
+            pad_rear = computed_tmp - pad_front
+
+            out_padding[2 * i + 0] = pad_front
+            out_padding[2 * i + 1] = pad_rear
+
+        return out_padding
+
+
+    def _filter2d(self, input, kernel):
+        # prepare kernel
+        b, c, h, w = input.shape
+        tmp_kernel = kernel[:, None, ...].to(device=input.device, dtype=input.dtype)
+
+        tmp_kernel = tmp_kernel.expand(-1, c, -1, -1)
+
+        height, width = tmp_kernel.shape[-2:]
+
+        padding_shape: list[int] = self._compute_padding([height, width])
+        input = torch.nn.functional.pad(input, padding_shape, mode="reflect")
+
+        # kernel and input tensor reshape to align element-wise or batch-wise params
+        tmp_kernel = tmp_kernel.reshape(-1, 1, height, width)
+        input = input.view(-1, tmp_kernel.size(0), input.size(-2), input.size(-1))
+
+        # convolve the tensor with the kernel.
+        output = torch.nn.functional.conv2d(input, tmp_kernel, groups=tmp_kernel.size(0), padding=0, stride=1)
+
+        out = output.view(b, c, h, w)
+        return out
+
+
+    def _gaussian(self, window_size: int, sigma):
+        if isinstance(sigma, float):
+            sigma = torch.tensor([[sigma]])
+
+        batch_size = sigma.shape[0]
+
+        x = (torch.arange(window_size, device=sigma.device, dtype=sigma.dtype) - window_size // 2).expand(batch_size, -1)
+
+        if window_size % 2 == 0:
+            x = x + 0.5
+
+        gauss = torch.exp(-x.pow(2.0) / (2 * sigma.pow(2.0)))
+
+        return gauss / gauss.sum(-1, keepdim=True)
+
+
+    def _gaussian_blur2d(self, input, kernel_size, sigma):
+        if isinstance(sigma, tuple):
+            sigma = torch.tensor([sigma], dtype=input.dtype)
+        else:
+            sigma = sigma.to(dtype=input.dtype)
+
+        ky, kx = int(kernel_size[0]), int(kernel_size[1])
+        bs = sigma.shape[0]
+        kernel_x = self._gaussian(kx, sigma[:, 1].view(bs, 1))
+        kernel_y = self._gaussian(ky, sigma[:, 0].view(bs, 1))
+        out_x = self._filter2d(input, kernel_x[..., None, :])
+        out = self._filter2d(out_x, kernel_y[..., None])
+
+        return out

diffsynth/processors/FastBlend.py

@@ -0,0 +1,142 @@
+from PIL import Image
+import cupy as cp
+import numpy as np
+from tqdm import tqdm
+from ..extensions.FastBlend.patch_match import PyramidPatchMatcher
+from ..extensions.FastBlend.runners.fast import TableManager
+from .base import VideoProcessor
+
+
+class FastBlendSmoother(VideoProcessor):
+    def __init__(
+        self,
+        inference_mode="fast", batch_size=8, window_size=60,
+        minimum_patch_size=5, threads_per_block=8, num_iter=5, gpu_id=0, guide_weight=10.0, initialize="identity", tracking_window_size=0
+    ):
+        self.inference_mode = inference_mode
+        self.batch_size = batch_size
+        self.window_size = window_size
+        self.ebsynth_config = {
+            "minimum_patch_size": minimum_patch_size,
+            "threads_per_block": threads_per_block,
+            "num_iter": num_iter,
+            "gpu_id": gpu_id,
+            "guide_weight": guide_weight,
+            "initialize": initialize,
+            "tracking_window_size": tracking_window_size
+        }
+
+    @staticmethod
+    def from_model_manager(model_manager, **kwargs):
+        # TODO: fetch GPU ID from model_manager
+        return FastBlendSmoother(**kwargs)
+
+    def inference_fast(self, frames_guide, frames_style):
+        table_manager = TableManager()
+        patch_match_engine = PyramidPatchMatcher(
+            image_height=frames_style[0].shape[0],
+            image_width=frames_style[0].shape[1],
+            channel=3,
+            **self.ebsynth_config
+        )
+        # left part
+        table_l = table_manager.build_remapping_table(frames_guide, frames_style, patch_match_engine, self.batch_size, desc="Fast Mode Step 1/4")
+        table_l = table_manager.remapping_table_to_blending_table(table_l)
+        table_l = table_manager.process_window_sum(frames_guide, table_l, patch_match_engine, self.window_size, self.batch_size, desc="Fast Mode Step 2/4")
+        # right part
+        table_r = table_manager.build_remapping_table(frames_guide[::-1], frames_style[::-1], patch_match_engine, self.batch_size, desc="Fast Mode Step 3/4")
+        table_r = table_manager.remapping_table_to_blending_table(table_r)
+        table_r = table_manager.process_window_sum(frames_guide[::-1], table_r, patch_match_engine, self.window_size, self.batch_size, desc="Fast Mode Step 4/4")[::-1]
+        # merge
+        frames = []
+        for (frame_l, weight_l), frame_m, (frame_r, weight_r) in zip(table_l, frames_style, table_r):
+            weight_m = -1
+            weight = weight_l + weight_m + weight_r
+            frame = frame_l * (weight_l / weight) + frame_m * (weight_m / weight) + frame_r * (weight_r / weight)
+            frames.append(frame)
+        frames = [frame.clip(0, 255).astype("uint8") for frame in frames]
+        frames = [Image.fromarray(frame) for frame in frames]
+        return frames
+    
+    def inference_balanced(self, frames_guide, frames_style):
+        patch_match_engine = PyramidPatchMatcher(
+            image_height=frames_style[0].shape[0],
+            image_width=frames_style[0].shape[1],
+            channel=3,
+            **self.ebsynth_config
+        )
+        output_frames = []
+        # tasks
+        n = len(frames_style)
+        tasks = []
+        for target in range(n):
+            for source in range(target - self.window_size, target + self.window_size + 1):
+                if source >= 0 and source < n and source != target:
+                    tasks.append((source, target))
+        # run
+        frames = [(None, 1) for i in range(n)]
+        for batch_id in tqdm(range(0, len(tasks), self.batch_size), desc="Balanced Mode"):
+            tasks_batch = tasks[batch_id: min(batch_id+self.batch_size, len(tasks))]
+            source_guide = np.stack([frames_guide[source] for source, target in tasks_batch])
+            target_guide = np.stack([frames_guide[target] for source, target in tasks_batch])
+            source_style = np.stack([frames_style[source] for source, target in tasks_batch])
+            _, target_style = patch_match_engine.estimate_nnf(source_guide, target_guide, source_style)
+            for (source, target), result in zip(tasks_batch, target_style):
+                frame, weight = frames[target]
+                if frame is None:
+                    frame = frames_style[target]
+                frames[target] = (
+                    frame * (weight / (weight + 1)) + result / (weight + 1),
+                    weight + 1
+                )
+                if weight + 1 == min(n, target + self.window_size + 1) - max(0, target - self.window_size):
+                    frame = frame.clip(0, 255).astype("uint8")
+                    output_frames.append(Image.fromarray(frame))
+                    frames[target] = (None, 1)
+        return output_frames
+    
+    def inference_accurate(self, frames_guide, frames_style):
+        patch_match_engine = PyramidPatchMatcher(
+            image_height=frames_style[0].shape[0],
+            image_width=frames_style[0].shape[1],
+            channel=3,
+            use_mean_target_style=True,
+            **self.ebsynth_config
+        )
+        output_frames = []
+        # run
+        n = len(frames_style)
+        for target in tqdm(range(n), desc="Accurate Mode"):
+            l, r = max(target - self.window_size, 0), min(target + self.window_size + 1, n)
+            remapped_frames = []
+            for i in range(l, r, self.batch_size):
+                j = min(i + self.batch_size, r)
+                source_guide = np.stack([frames_guide[source] for source in range(i, j)])
+                target_guide = np.stack([frames_guide[target]] * (j - i))
+                source_style = np.stack([frames_style[source] for source in range(i, j)])
+                _, target_style = patch_match_engine.estimate_nnf(source_guide, target_guide, source_style)
+                remapped_frames.append(target_style)
+            frame = np.concatenate(remapped_frames, axis=0).mean(axis=0)
+            frame = frame.clip(0, 255).astype("uint8")
+            output_frames.append(Image.fromarray(frame))
+        return output_frames
+    
+    def release_vram(self):
+        mempool = cp.get_default_memory_pool()
+        pinned_mempool = cp.get_default_pinned_memory_pool()
+        mempool.free_all_blocks()
+        pinned_mempool.free_all_blocks()
+    
+    def __call__(self, rendered_frames, original_frames=None, **kwargs):
+        rendered_frames = [np.array(frame) for frame in rendered_frames]
+        original_frames = [np.array(frame) for frame in original_frames]
+        if self.inference_mode == "fast":
+            output_frames = self.inference_fast(original_frames, rendered_frames)
+        elif self.inference_mode == "balanced":
+            output_frames = self.inference_balanced(original_frames, rendered_frames)
+        elif self.inference_mode == "accurate":
+            output_frames = self.inference_accurate(original_frames, rendered_frames)
+        else:
+            raise ValueError("inference_mode must be fast, balanced or accurate")
+        self.release_vram()
+        return output_frames

diffsynth/processors/PILEditor.py

@@ -0,0 +1,28 @@
+from PIL import ImageEnhance
+from .base import VideoProcessor
+
+
+class ContrastEditor(VideoProcessor):
+    def __init__(self, rate=1.5):
+        self.rate = rate
+
+    @staticmethod
+    def from_model_manager(model_manager, **kwargs):
+        return ContrastEditor(**kwargs)
+    
+    def __call__(self, rendered_frames, **kwargs):
+        rendered_frames = [ImageEnhance.Contrast(i).enhance(self.rate) for i in rendered_frames]
+        return rendered_frames
+
+
+class SharpnessEditor(VideoProcessor):
+    def __init__(self, rate=1.5):
+        self.rate = rate
+
+    @staticmethod
+    def from_model_manager(model_manager, **kwargs):
+        return SharpnessEditor(**kwargs)
+    
+    def __call__(self, rendered_frames, **kwargs):
+        rendered_frames = [ImageEnhance.Sharpness(i).enhance(self.rate) for i in rendered_frames]
+        return rendered_frames

diffsynth/processors/RIFE.py

@@ -0,0 +1,77 @@
+import torch
+import numpy as np
+from PIL import Image
+from .base import VideoProcessor
+
+
+class RIFESmoother(VideoProcessor):
+    def __init__(self, model, device="cuda", scale=1.0, batch_size=4, interpolate=True):
+        self.model = model
+        self.device = device
+
+        # IFNet only does not support float16
+        self.torch_dtype = torch.float32
+
+        # Other parameters
+        self.scale = scale
+        self.batch_size = batch_size
+        self.interpolate = interpolate
+
+    @staticmethod
+    def from_model_manager(model_manager, **kwargs):
+        return RIFESmoother(model_manager.RIFE, device=model_manager.device, **kwargs)
+    
+    def process_image(self, image):
+        width, height = image.size
+        if width % 32 != 0 or height % 32 != 0:
+            width = (width + 31) // 32
+            height = (height + 31) // 32
+            image = image.resize((width, height))
+        image = torch.Tensor(np.array(image, dtype=np.float32)[:, :, [2,1,0]] / 255).permute(2, 0, 1)
+        return image
+    
+    def process_images(self, images):
+        images = [self.process_image(image) for image in images]
+        images = torch.stack(images)
+        return images
+    
+    def decode_images(self, images):
+        images = (images[:, [2,1,0]].permute(0, 2, 3, 1) * 255).clip(0, 255).numpy().astype(np.uint8)
+        images = [Image.fromarray(image) for image in images]
+        return images
+    
+    def process_tensors(self, input_tensor, scale=1.0, batch_size=4):
+        output_tensor = []
+        for batch_id in range(0, input_tensor.shape[0], batch_size):
+            batch_id_ = min(batch_id + batch_size, input_tensor.shape[0])
+            batch_input_tensor = input_tensor[batch_id: batch_id_]
+            batch_input_tensor = batch_input_tensor.to(device=self.device, dtype=self.torch_dtype)
+            flow, mask, merged = self.model(batch_input_tensor, [4/scale, 2/scale, 1/scale])
+            output_tensor.append(merged[2].cpu())
+        output_tensor = torch.concat(output_tensor, dim=0)
+        return output_tensor
+
+    @torch.no_grad()
+    def __call__(self, rendered_frames, **kwargs):
+        # Preprocess
+        processed_images = self.process_images(rendered_frames)
+
+        # Input
+        input_tensor = torch.cat((processed_images[:-2], processed_images[2:]), dim=1)
+
+        # Interpolate
+        output_tensor = self.process_tensors(input_tensor, scale=self.scale, batch_size=self.batch_size)
+        
+        if self.interpolate:
+            # Blend
+            input_tensor = torch.cat((processed_images[1:-1], output_tensor), dim=1)
+            output_tensor = self.process_tensors(input_tensor, scale=self.scale, batch_size=self.batch_size)
+            processed_images[1:-1] = output_tensor
+        else:
+            processed_images[1:-1] = (processed_images[1:-1] + output_tensor) / 2
+
+        # To images
+        output_images = self.decode_images(processed_images)
+        if output_images[0].size != rendered_frames[0].size:
+            output_images = [image.resize(rendered_frames[0].size) for image in output_images]
+        return output_images

diffsynth/processors/base.py

@@ -0,0 +1,6 @@
+class VideoProcessor:
+    def __init__(self):
+        pass
+
+    def __call__(self):
+        raise NotImplementedError

diffsynth/processors/sequencial_processor.py

@@ -0,0 +1,41 @@
+from .base import VideoProcessor
+
+
+class AutoVideoProcessor(VideoProcessor):
+    def __init__(self):
+        pass
+
+    @staticmethod
+    def from_model_manager(model_manager, processor_type, **kwargs):
+        if processor_type == "FastBlend":
+            from .FastBlend import FastBlendSmoother
+            return FastBlendSmoother.from_model_manager(model_manager, **kwargs)
+        elif processor_type == "Contrast":
+            from .PILEditor import ContrastEditor
+            return ContrastEditor.from_model_manager(model_manager, **kwargs)
+        elif processor_type == "Sharpness":
+            from .PILEditor import SharpnessEditor
+            return SharpnessEditor.from_model_manager(model_manager, **kwargs)
+        elif processor_type == "RIFE":
+            from .RIFE import RIFESmoother
+            return RIFESmoother.from_model_manager(model_manager, **kwargs)
+        else:
+            raise ValueError(f"invalid processor_type: {processor_type}")
+
+
+class SequencialProcessor(VideoProcessor):
+    def __init__(self, processors=[]):
+        self.processors = processors
+
+    @staticmethod
+    def from_model_manager(model_manager, configs):
+        processors = [
+            AutoVideoProcessor.from_model_manager(model_manager, config["processor_type"], **config["config"])
+            for config in configs
+        ]
+        return SequencialProcessor(processors)
+    
+    def __call__(self, rendered_frames, **kwargs):
+        for processor in self.processors:
+            rendered_frames = processor(rendered_frames, **kwargs)
+        return rendered_frames