controlnet

examples/wanvideo/train_wan_t2v.py

@@ -14,7 +14,10 @@ import numpy as np
 class TextVideoDataset(torch.utils.data.Dataset):
     def __init__(self, base_path, metadata_path, max_num_frames=81, frame_interval=1, num_frames=81, height=480, width=832, is_i2v=False, target_fps=None):
         metadata = pd.read_csv(metadata_path)
-        self.path = [os.path.join(base_path, "train", file_name) for file_name in metadata["file_name"]]
+        if os.path.exists(os.path.join(base_path, "train")):
+            self.path = [os.path.join(base_path, "train", file_name) for file_name in metadata["file_name"]]
+        else:
+            self.path = [os.path.join(base_path, file_name) for file_name in metadata["file_name"]]
         self.text = metadata["text"].to_list()
         
         self.max_num_frames = max_num_frames
@@ -359,6 +362,12 @@ def parse_args():
         default="./",
         help="Path to save the model.",
     )
+    parser.add_argument(
+        "--metadata_path",
+        type=str,
+        default=None,
+        help="Path to metadata.csv.",
+    )
     parser.add_argument(
         "--redirected_tensor_path",
         type=str,
@@ -548,7 +557,7 @@ def parse_args():
 def data_process(args):
     dataset = TextVideoDataset(
         args.dataset_path,
-        os.path.join(args.dataset_path, "metadata.csv"),
+        os.path.join(args.dataset_path, "metadata.csv") if args.metadata_path is None else args.metadata_path,
         max_num_frames=args.num_frames,
         frame_interval=1,
         num_frames=args.num_frames,
@@ -584,7 +593,7 @@ def data_process(args):
 def train(args):
     dataset = TensorDataset(
         args.dataset_path,
-        os.path.join(args.dataset_path, "metadata.csv"),
+        os.path.join(args.dataset_path, "metadata.csv") if args.metadata_path is None else args.metadata_path,
         steps_per_epoch=args.steps_per_epoch,
         redirected_tensor_path=args.redirected_tensor_path,
     )

examples/wanvideo/train_wan_t2v_controlnet.py

@@ -0,0 +1,626 @@
+import torch, os, imageio, argparse
+from torchvision.transforms import v2
+from einops import rearrange
+import lightning as pl
+import pandas as pd
+from diffsynth import WanVideoPipeline, ModelManager, load_state_dict
+from peft import LoraConfig, inject_adapter_in_model
+import torchvision
+from PIL import Image
+import numpy as np
+from diffsynth.models.wan_video_controlnet import WanControlNetModel
+from diffsynth.pipelines.wan_video import model_fn_wan_video
+
+
+
+class TextVideoDataset(torch.utils.data.Dataset):
+    def __init__(self, base_path, metadata_path, max_num_frames=81, frame_interval=1, num_frames=81, height=480, width=832, is_i2v=False, target_fps=None):
+        metadata = pd.read_csv(metadata_path)
+        self.path = [os.path.join(base_path, "train", file_name) for file_name in metadata["file_name"]]
+        self.controlnet_path = [os.path.join(base_path, file_name) for file_name in metadata["controlnet_file_name"]]
+        self.text = metadata["text"].to_list()
+        
+        self.max_num_frames = max_num_frames
+        self.frame_interval = frame_interval
+        self.num_frames = num_frames
+        self.height = height
+        self.width = width
+        self.is_i2v = is_i2v
+        self.target_fps = target_fps
+            
+        self.frame_process = v2.Compose([
+            v2.CenterCrop(size=(height, width)),
+            v2.Resize(size=(height, width), antialias=True),
+            v2.ToTensor(),
+            v2.Normalize(mean=[0.5, 0.5, 0.5], std=[0.5, 0.5, 0.5]),
+        ])
+        
+        
+    def crop_and_resize(self, image):
+        width, height = image.size
+        scale = max(self.width / width, self.height / height)
+        image = torchvision.transforms.functional.resize(
+            image,
+            (round(height*scale), round(width*scale)),
+            interpolation=torchvision.transforms.InterpolationMode.BILINEAR
+        )
+        return image
+
+
+    def load_frames_using_imageio(self, file_path, max_num_frames, start_frame_id, interval, num_frames, frame_process):
+        reader = imageio.get_reader(file_path)
+        if reader.count_frames() < max_num_frames or reader.count_frames() - 1 < start_frame_id + (num_frames - 1) * interval:
+            reader.close()
+            return None
+        
+        frames = []
+        first_frame = None
+        for frame_id in range(num_frames):
+            frame = reader.get_data(start_frame_id + frame_id * interval)
+            frame = Image.fromarray(frame)
+            frame = self.crop_and_resize(frame)
+            if first_frame is None:
+                first_frame = np.array(frame)
+            frame = frame_process(frame)
+            frames.append(frame)
+        reader.close()
+
+        frames = torch.stack(frames, dim=0)
+        frames = rearrange(frames, "T C H W -> C T H W")
+
+        if self.is_i2v:
+            return frames, first_frame
+        else:
+            return frames
+
+
+    def load_video(self, file_path):
+        start_frame_id = 0
+        if self.target_fps is None:
+            frame_interval = self.frame_interval
+        else:
+            reader = imageio.get_reader(file_path)
+            fps = reader.get_meta_data()["fps"]
+            reader.close()
+            frame_interval = max(round(fps / self.target_fps), 1)
+        frames = self.load_frames_using_imageio(file_path, self.max_num_frames, start_frame_id, frame_interval, self.num_frames, self.frame_process)
+        return frames
+    
+    
+    def is_image(self, file_path):
+        file_ext_name = file_path.split(".")[-1]
+        if file_ext_name.lower() in ["jpg", "jpeg", "png", "webp"]:
+            return True
+        return False
+    
+    
+    def load_image(self, file_path):
+        frame = Image.open(file_path).convert("RGB")
+        frame = self.crop_and_resize(frame)
+        frame = self.frame_process(frame)
+        frame = rearrange(frame, "C H W -> C 1 H W")
+        return frame
+
+
+    def __getitem__(self, data_id):
+        text = self.text[data_id]
+        path = self.path[data_id]
+        controlnet_path = self.controlnet_path[data_id]
+        try:
+            if self.is_image(path):
+                if self.is_i2v:
+                    raise ValueError(f"{path} is not a video. I2V model doesn't support image-to-image training.")
+                video = self.load_image(path)
+            else:
+                video = self.load_video(path)
+                controlnet_frames = self.load_video(controlnet_path)
+            if self.is_i2v:
+                video, first_frame = video
+                data = {"text": text, "video": video, "path": path, "first_frame": first_frame}
+            else:
+                data = {"text": text, "video": video, "path": path, "controlnet_frames": controlnet_frames}
+        except:
+            data = None
+        return data
+    
+
+    def __len__(self):
+        return len(self.path)
+
+
+
+class LightningModelForDataProcess(pl.LightningModule):
+    def __init__(self, text_encoder_path, vae_path, image_encoder_path=None, tiled=False, tile_size=(34, 34), tile_stride=(18, 16), redirected_tensor_path=None):
+        super().__init__()
+        model_path = [text_encoder_path, vae_path]
+        if image_encoder_path is not None:
+            model_path.append(image_encoder_path)
+        model_manager = ModelManager(torch_dtype=torch.bfloat16, device="cpu")
+        model_manager.load_models(model_path)
+        self.pipe = WanVideoPipeline.from_model_manager(model_manager)
+
+        self.tiler_kwargs = {"tiled": tiled, "tile_size": tile_size, "tile_stride": tile_stride}
+        self.redirected_tensor_path = redirected_tensor_path
+        
+    def test_step(self, batch, batch_idx):
+        data = batch[0]
+        if data is None or data["video"] is None:
+            return
+        text, video, path = data["text"], data["video"].unsqueeze(0), data["path"]
+        controlnet_frames = data["controlnet_frames"].unsqueeze(0)
+        
+        self.pipe.device = self.device
+        if video is not None:
+            # prompt
+            prompt_emb = self.pipe.encode_prompt(text)
+            # video
+            video = video.to(dtype=self.pipe.torch_dtype, device=self.pipe.device)
+            latents = self.pipe.encode_video(video, **self.tiler_kwargs)[0]
+            # ControlNet video
+            controlnet_frames = controlnet_frames.to(dtype=self.pipe.torch_dtype, device=self.pipe.device)
+            controlnet_kwargs = self.pipe.prepare_controlnet(controlnet_frames, **self.tiler_kwargs)
+            controlnet_kwargs["controlnet_conditioning"] = controlnet_kwargs["controlnet_conditioning"][0]
+            # image
+            if "first_frame" in batch:
+                first_frame = Image.fromarray(batch["first_frame"][0].cpu().numpy())
+                _, _, num_frames, height, width = video.shape
+                image_emb = self.pipe.encode_image(first_frame, num_frames, height, width)
+            else:
+                image_emb = {}
+            data = {"latents": latents, "prompt_emb": prompt_emb, "image_emb": image_emb, "controlnet_kwargs": controlnet_kwargs}
+            if self.redirected_tensor_path is not None:
+                path = path.replace("/", "_").replace("\\", "_")
+                path = os.path.join(self.redirected_tensor_path, path)
+            torch.save(data, path + ".tensors.pth")
+
+
+
+class TensorDataset(torch.utils.data.Dataset):
+    def __init__(self, base_path, metadata_path=None, steps_per_epoch=1000, redirected_tensor_path=None):
+        if os.path.exists(metadata_path):
+            metadata = pd.read_csv(metadata_path)
+            self.path = [os.path.join(base_path, "train", file_name) for file_name in metadata["file_name"]]
+            print(len(self.path), "videos in metadata.")
+            if redirected_tensor_path is None:
+                self.path = [i + ".tensors.pth" for i in self.path if os.path.exists(i + ".tensors.pth")]
+            else:
+                cached_path = []
+                for path in self.path:
+                    path = path.replace("/", "_").replace("\\", "_")
+                    path = os.path.join(redirected_tensor_path, path)
+                    if os.path.exists(path + ".tensors.pth"):
+                        cached_path.append(path + ".tensors.pth")
+                self.path = cached_path
+        else:
+            print("Cannot find metadata.csv. Trying to search for tensor files.")
+            self.path = [os.path.join(base_path, i) for i in os.listdir(base_path) if i.endswith(".tensors.pth")]
+        print(len(self.path), "tensors cached in metadata.")
+        assert len(self.path) > 0
+        
+        self.steps_per_epoch = steps_per_epoch
+        self.redirected_tensor_path = redirected_tensor_path
+
+
+    def __getitem__(self, index):
+        while True:
+            try:
+                data_id = torch.randint(0, len(self.path), (1,))[0]
+                data_id = (data_id + index) % len(self.path) # For fixed seed.
+                path = self.path[data_id]
+                data = torch.load(path, weights_only=True, map_location="cpu")
+                return data
+            except:
+                continue
+    
+
+    def __len__(self):
+        return self.steps_per_epoch
+
+
+
+class LightningModelForTrain(pl.LightningModule):
+    def __init__(
+        self,
+        dit_path,
+        learning_rate=1e-5,
+        lora_rank=4, lora_alpha=4, train_architecture="lora", lora_target_modules="q,k,v,o,ffn.0,ffn.2", init_lora_weights="kaiming",
+        use_gradient_checkpointing=True, use_gradient_checkpointing_offload=False,
+        pretrained_lora_path=None
+    ):
+        super().__init__()
+        model_manager = ModelManager(torch_dtype=torch.bfloat16, device="cpu")
+        if os.path.isfile(dit_path):
+            model_manager.load_models([dit_path])
+        else:
+            dit_path = dit_path.split(",")
+            model_manager.load_models([dit_path])
+        
+        self.pipe = WanVideoPipeline.from_model_manager(model_manager)
+        self.pipe.scheduler.set_timesteps(1000, training=True)
+        self.freeze_parameters()
+        
+        state_dict = load_state_dict(dit_path, torch_dtype=torch.bfloat16)
+        state_dict, config = WanControlNetModel.state_dict_converter().from_base_model(state_dict)
+        self.pipe.controlnet = WanControlNetModel(**config).to(torch.bfloat16)
+        self.pipe.controlnet.load_state_dict(state_dict)
+        self.pipe.controlnet.train()
+        self.pipe.controlnet.requires_grad_(True)
+        
+        self.learning_rate = learning_rate
+        self.use_gradient_checkpointing = use_gradient_checkpointing
+        self.use_gradient_checkpointing_offload = use_gradient_checkpointing_offload
+        
+        
+    def freeze_parameters(self):
+        # Freeze parameters
+        self.pipe.requires_grad_(False)
+        self.pipe.eval()
+        self.pipe.denoising_model().train()
+
+
+    def training_step(self, batch, batch_idx):
+        # Data
+        latents = batch["latents"].to(self.device)
+        controlnet_kwargs = batch["controlnet_kwargs"]
+        controlnet_kwargs["controlnet_conditioning"] = controlnet_kwargs["controlnet_conditioning"].to(self.device)
+        prompt_emb = batch["prompt_emb"]
+        prompt_emb["context"] = prompt_emb["context"][0].to(self.device)
+        image_emb = batch["image_emb"]
+        if "clip_feature" in image_emb:
+            image_emb["clip_feature"] = image_emb["clip_feature"][0].to(self.device)
+        if "y" in image_emb:
+            image_emb["y"] = image_emb["y"][0].to(self.device)
+
+        # Loss
+        self.pipe.device = self.device
+        noise = torch.randn_like(latents)
+        timestep_id = torch.randint(0, self.pipe.scheduler.num_train_timesteps, (1,))
+        timestep = self.pipe.scheduler.timesteps[timestep_id].to(dtype=self.pipe.torch_dtype, device=self.pipe.device)
+        extra_input = self.pipe.prepare_extra_input(latents)
+        noisy_latents = self.pipe.scheduler.add_noise(latents, noise, timestep)
+        training_target = self.pipe.scheduler.training_target(latents, noise, timestep)
+
+        # Compute loss
+        noise_pred = model_fn_wan_video(
+            dit=self.pipe.dit, controlnet=self.pipe.controlnet,
+            x=noisy_latents, timestep=timestep, **prompt_emb, **extra_input, **image_emb, **controlnet_kwargs,
+            use_gradient_checkpointing=self.use_gradient_checkpointing,
+            use_gradient_checkpointing_offload=self.use_gradient_checkpointing_offload
+        )
+        loss = torch.nn.functional.mse_loss(noise_pred.float(), training_target.float())
+        loss = loss * self.pipe.scheduler.training_weight(timestep)
+
+        # Record log
+        self.log("train_loss", loss, prog_bar=True)
+        return loss
+
+
+    def configure_optimizers(self):
+        trainable_modules = filter(lambda p: p.requires_grad, self.pipe.controlnet.parameters())
+        optimizer = torch.optim.AdamW(trainable_modules, lr=self.learning_rate)
+        return optimizer
+    
+
+    def on_save_checkpoint(self, checkpoint):
+        checkpoint.clear()
+        trainable_param_names = list(filter(lambda named_param: named_param[1].requires_grad, self.pipe.controlnet.named_parameters()))
+        trainable_param_names = set([named_param[0] for named_param in trainable_param_names])
+        state_dict = self.pipe.controlnet.state_dict()
+        lora_state_dict = {}
+        for name, param in state_dict.items():
+            if name in trainable_param_names:
+                lora_state_dict[name] = param
+        checkpoint.update(lora_state_dict)
+
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(description="Simple example of a training script.")
+    parser.add_argument(
+        "--task",
+        type=str,
+        default="data_process",
+        required=True,
+        choices=["data_process", "train"],
+        help="Task. `data_process` or `train`.",
+    )
+    parser.add_argument(
+        "--dataset_path",
+        type=str,
+        default=None,
+        required=True,
+        help="The path of the Dataset.",
+    )
+    parser.add_argument(
+        "--output_path",
+        type=str,
+        default="./",
+        help="Path to save the model.",
+    )
+    parser.add_argument(
+        "--metadata_path",
+        type=str,
+        default=None,
+        help="Path to metadata.csv.",
+    )
+    parser.add_argument(
+        "--redirected_tensor_path",
+        type=str,
+        default=None,
+        help="Path to save cached tensors.",
+    )
+    parser.add_argument(
+        "--text_encoder_path",
+        type=str,
+        default=None,
+        help="Path of text encoder.",
+    )
+    parser.add_argument(
+        "--image_encoder_path",
+        type=str,
+        default=None,
+        help="Path of image encoder.",
+    )
+    parser.add_argument(
+        "--vae_path",
+        type=str,
+        default=None,
+        help="Path of VAE.",
+    )
+    parser.add_argument(
+        "--dit_path",
+        type=str,
+        default=None,
+        help="Path of DiT.",
+    )
+    parser.add_argument(
+        "--tiled",
+        default=False,
+        action="store_true",
+        help="Whether enable tile encode in VAE. This option can reduce VRAM required.",
+    )
+    parser.add_argument(
+        "--tile_size_height",
+        type=int,
+        default=34,
+        help="Tile size (height) in VAE.",
+    )
+    parser.add_argument(
+        "--tile_size_width",
+        type=int,
+        default=34,
+        help="Tile size (width) in VAE.",
+    )
+    parser.add_argument(
+        "--tile_stride_height",
+        type=int,
+        default=18,
+        help="Tile stride (height) in VAE.",
+    )
+    parser.add_argument(
+        "--tile_stride_width",
+        type=int,
+        default=16,
+        help="Tile stride (width) in VAE.",
+    )
+    parser.add_argument(
+        "--steps_per_epoch",
+        type=int,
+        default=500,
+        help="Number of steps per epoch.",
+    )
+    parser.add_argument(
+        "--num_frames",
+        type=int,
+        default=81,
+        help="Number of frames.",
+    )
+    parser.add_argument(
+        "--target_fps",
+        type=int,
+        default=None,
+        help="Expected FPS for sampling frames.",
+    )
+    parser.add_argument(
+        "--height",
+        type=int,
+        default=480,
+        help="Image height.",
+    )
+    parser.add_argument(
+        "--width",
+        type=int,
+        default=832,
+        help="Image width.",
+    )
+    parser.add_argument(
+        "--dataloader_num_workers",
+        type=int,
+        default=1,
+        help="Number of subprocesses to use for data loading. 0 means that the data will be loaded in the main process.",
+    )
+    parser.add_argument(
+        "--learning_rate",
+        type=float,
+        default=1e-5,
+        help="Learning rate.",
+    )
+    parser.add_argument(
+        "--accumulate_grad_batches",
+        type=int,
+        default=1,
+        help="The number of batches in gradient accumulation.",
+    )
+    parser.add_argument(
+        "--max_epochs",
+        type=int,
+        default=1,
+        help="Number of epochs.",
+    )
+    parser.add_argument(
+        "--lora_target_modules",
+        type=str,
+        default="q,k,v,o,ffn.0,ffn.2",
+        help="Layers with LoRA modules.",
+    )
+    parser.add_argument(
+        "--init_lora_weights",
+        type=str,
+        default="kaiming",
+        choices=["gaussian", "kaiming"],
+        help="The initializing method of LoRA weight.",
+    )
+    parser.add_argument(
+        "--training_strategy",
+        type=str,
+        default="auto",
+        choices=["auto", "deepspeed_stage_1", "deepspeed_stage_2", "deepspeed_stage_3"],
+        help="Training strategy",
+    )
+    parser.add_argument(
+        "--lora_rank",
+        type=int,
+        default=4,
+        help="The dimension of the LoRA update matrices.",
+    )
+    parser.add_argument(
+        "--lora_alpha",
+        type=float,
+        default=4.0,
+        help="The weight of the LoRA update matrices.",
+    )
+    parser.add_argument(
+        "--use_gradient_checkpointing",
+        default=False,
+        action="store_true",
+        help="Whether to use gradient checkpointing.",
+    )
+    parser.add_argument(
+        "--use_gradient_checkpointing_offload",
+        default=False,
+        action="store_true",
+        help="Whether to use gradient checkpointing offload.",
+    )
+    parser.add_argument(
+        "--train_architecture",
+        type=str,
+        default="lora",
+        choices=["lora", "full"],
+        help="Model structure to train. LoRA training or full training.",
+    )
+    parser.add_argument(
+        "--pretrained_lora_path",
+        type=str,
+        default=None,
+        help="Pretrained LoRA path. Required if the training is resumed.",
+    )
+    parser.add_argument(
+        "--use_swanlab",
+        default=False,
+        action="store_true",
+        help="Whether to use SwanLab logger.",
+    )
+    parser.add_argument(
+        "--swanlab_mode",
+        default=None,
+        help="SwanLab mode (cloud or local).",
+    )
+    args = parser.parse_args()
+    return args
+
+
+def data_process(args):
+    dataset = TextVideoDataset(
+        args.dataset_path,
+        os.path.join(args.dataset_path, "metadata.csv") if args.metadata_path is None else args.metadata_path,
+        max_num_frames=args.num_frames,
+        frame_interval=1,
+        num_frames=args.num_frames,
+        height=args.height,
+        width=args.width,
+        is_i2v=args.image_encoder_path is not None,
+        target_fps=args.target_fps,
+    )
+    dataloader = torch.utils.data.DataLoader(
+        dataset,
+        shuffle=False,
+        batch_size=1,
+        num_workers=args.dataloader_num_workers,
+        collate_fn=lambda x: x,
+    )
+    model = LightningModelForDataProcess(
+        text_encoder_path=args.text_encoder_path,
+        image_encoder_path=args.image_encoder_path,
+        vae_path=args.vae_path,
+        tiled=args.tiled,
+        tile_size=(args.tile_size_height, args.tile_size_width),
+        tile_stride=(args.tile_stride_height, args.tile_stride_width),
+        redirected_tensor_path=args.redirected_tensor_path,
+    )
+    trainer = pl.Trainer(
+        accelerator="gpu",
+        devices="auto",
+        default_root_dir=args.output_path,
+    )
+    trainer.test(model, dataloader)
+    
+    
+def train(args):
+    dataset = TensorDataset(
+        args.dataset_path,
+        os.path.join(args.dataset_path, "metadata.csv") if args.metadata_path is None else args.metadata_path,
+        steps_per_epoch=args.steps_per_epoch,
+        redirected_tensor_path=args.redirected_tensor_path,
+    )
+    dataloader = torch.utils.data.DataLoader(
+        dataset,
+        shuffle=True,
+        batch_size=1,
+        num_workers=args.dataloader_num_workers
+    )
+    model = LightningModelForTrain(
+        dit_path=args.dit_path,
+        learning_rate=args.learning_rate,
+        train_architecture=args.train_architecture,
+        lora_rank=args.lora_rank,
+        lora_alpha=args.lora_alpha,
+        lora_target_modules=args.lora_target_modules,
+        init_lora_weights=args.init_lora_weights,
+        use_gradient_checkpointing=args.use_gradient_checkpointing,
+        use_gradient_checkpointing_offload=args.use_gradient_checkpointing_offload,
+        pretrained_lora_path=args.pretrained_lora_path,
+    )
+    if args.use_swanlab:
+        from swanlab.integration.pytorch_lightning import SwanLabLogger
+        swanlab_config = {"UPPERFRAMEWORK": "DiffSynth-Studio"}
+        swanlab_config.update(vars(args))
+        swanlab_logger = SwanLabLogger(
+            project="wan", 
+            name="wan",
+            config=swanlab_config,
+            mode=args.swanlab_mode,
+            logdir=os.path.join(args.output_path, "swanlog"),
+        )
+        logger = [swanlab_logger]
+    else:
+        logger = None
+    trainer = pl.Trainer(
+        max_epochs=args.max_epochs,
+        accelerator="gpu",
+        devices="auto",
+        precision="bf16",
+        strategy=args.training_strategy,
+        default_root_dir=args.output_path,
+        accumulate_grad_batches=args.accumulate_grad_batches,
+        callbacks=[pl.pytorch.callbacks.ModelCheckpoint(save_top_k=-1)],
+        logger=logger,
+    )
+    trainer.fit(model, dataloader)
+
+
+if __name__ == '__main__':
+    args = parse_args()
+    if args.task == "data_process":
+        data_process(args)
+    elif args.task == "train":
+        train(args)