Add pipeline code for trust_remote_code
#3
by
kahnchana
- opened
- pipeline_fofpred.py +894 -0
pipeline_fofpred.py
ADDED
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@@ -0,0 +1,894 @@
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| 1 |
+
"""
|
| 2 |
+
FOFPred Diffusion Pipeline.
|
| 3 |
+
|
| 4 |
+
Modified from OmniGen2 Diffusion Pipeline (By OmniGen2 Team and The HuggingFace Team).
|
| 5 |
+
|
| 6 |
+
Licensed under the Apache License, Version 2.0 (the "License");
|
| 7 |
+
you may not use this file except in compliance with the License.
|
| 8 |
+
You may obtain a copy of the License at
|
| 9 |
+
|
| 10 |
+
http://www.apache.org/licenses/LICENSE-2.0
|
| 11 |
+
|
| 12 |
+
Unless required by applicable law or agreed to in writing, software
|
| 13 |
+
distributed under the License is distributed on an "AS IS" BASIS,
|
| 14 |
+
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
| 15 |
+
See the License for the specific language governing permissions and
|
| 16 |
+
limitations under the License.
|
| 17 |
+
"""
|
| 18 |
+
|
| 19 |
+
import inspect
|
| 20 |
+
from dataclasses import dataclass
|
| 21 |
+
from typing import Any, Dict, List, Optional, Tuple, Union
|
| 22 |
+
|
| 23 |
+
import numpy as np
|
| 24 |
+
import PIL.Image
|
| 25 |
+
import torch
|
| 26 |
+
import torch.nn.functional as F
|
| 27 |
+
from diffusers.models.autoencoders import AutoencoderKL
|
| 28 |
+
from diffusers.pipelines.pipeline_utils import DiffusionPipeline
|
| 29 |
+
from diffusers.schedulers import FlowMatchEulerDiscreteScheduler
|
| 30 |
+
from diffusers.utils import (
|
| 31 |
+
BaseOutput,
|
| 32 |
+
is_torch_xla_available,
|
| 33 |
+
logging,
|
| 34 |
+
)
|
| 35 |
+
from diffusers.utils.torch_utils import randn_tensor
|
| 36 |
+
from transformers import Qwen2_5_VLForConditionalGeneration
|
| 37 |
+
|
| 38 |
+
from fofpred.pipelines.image_processor import OmniGen2ImageProcessor
|
| 39 |
+
from fofpred.utils.teacache_util import TeaCacheParams
|
| 40 |
+
|
| 41 |
+
from ...models.transformers import OmniGen2Transformer3DModel
|
| 42 |
+
from ...models.transformers.repo import OmniGen2RotaryPosEmbed
|
| 43 |
+
from ..lora_pipeline import OmniGen2LoraLoaderMixin
|
| 44 |
+
|
| 45 |
+
if is_torch_xla_available():
|
| 46 |
+
XLA_AVAILABLE = True
|
| 47 |
+
else:
|
| 48 |
+
XLA_AVAILABLE = False
|
| 49 |
+
|
| 50 |
+
from ...cache_functions import cache_init
|
| 51 |
+
|
| 52 |
+
logger = logging.get_logger(__name__) # pylint: disable=invalid-name
|
| 53 |
+
|
| 54 |
+
|
| 55 |
+
@dataclass
|
| 56 |
+
class FMPipelineOutput(BaseOutput):
|
| 57 |
+
"""
|
| 58 |
+
Output class for OmniGen2 pipeline.
|
| 59 |
+
|
| 60 |
+
Args:
|
| 61 |
+
images (Union[List[PIL.Image.Image], np.ndarray]):
|
| 62 |
+
List of denoised PIL images of length `batch_size` or numpy array of shape
|
| 63 |
+
`(batch_size, height, width, num_channels)`. Contains the generated images.
|
| 64 |
+
"""
|
| 65 |
+
|
| 66 |
+
images: Union[List[PIL.Image.Image], np.ndarray]
|
| 67 |
+
|
| 68 |
+
|
| 69 |
+
# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.retrieve_timesteps
|
| 70 |
+
def retrieve_timesteps(
|
| 71 |
+
scheduler,
|
| 72 |
+
num_inference_steps: Optional[int] = None,
|
| 73 |
+
device: Optional[Union[str, torch.device]] = None,
|
| 74 |
+
timesteps: Optional[List[int]] = None,
|
| 75 |
+
**kwargs,
|
| 76 |
+
):
|
| 77 |
+
"""
|
| 78 |
+
Calls the scheduler's `set_timesteps` method and retrieves timesteps from the scheduler after the call. Handles
|
| 79 |
+
custom timesteps. Any kwargs will be supplied to `scheduler.set_timesteps`.
|
| 80 |
+
|
| 81 |
+
Args:
|
| 82 |
+
scheduler (`SchedulerMixin`):
|
| 83 |
+
The scheduler to get timesteps from.
|
| 84 |
+
num_inference_steps (`int`):
|
| 85 |
+
The number of diffusion steps used when generating samples with a pre-trained model. If used, `timesteps`
|
| 86 |
+
must be `None`.
|
| 87 |
+
device (`str` or `torch.device`, *optional*):
|
| 88 |
+
The device to which the timesteps should be moved to. If `None`, the timesteps are not moved.
|
| 89 |
+
timesteps (`List[int]`, *optional*):
|
| 90 |
+
Custom timesteps used to override the timestep spacing strategy of the scheduler. If `timesteps` is passed,
|
| 91 |
+
`num_inference_steps` and `sigmas` must be `None`.
|
| 92 |
+
sigmas (`List[float]`, *optional*):
|
| 93 |
+
Custom sigmas used to override the timestep spacing strategy of the scheduler. If `sigmas` is passed,
|
| 94 |
+
`num_inference_steps` and `timesteps` must be `None`.
|
| 95 |
+
|
| 96 |
+
Returns:
|
| 97 |
+
`Tuple[torch.Tensor, int]`: A tuple where the first element is the timestep schedule from the scheduler and the
|
| 98 |
+
second element is the number of inference steps.
|
| 99 |
+
"""
|
| 100 |
+
if timesteps is not None:
|
| 101 |
+
accepts_timesteps = "timesteps" in set(
|
| 102 |
+
inspect.signature(scheduler.set_timesteps).parameters.keys()
|
| 103 |
+
)
|
| 104 |
+
if not accepts_timesteps:
|
| 105 |
+
raise ValueError(
|
| 106 |
+
f"The current scheduler class {scheduler.__class__}'s `set_timesteps` does not support custom"
|
| 107 |
+
f" timestep schedules. Please check whether you are using the correct scheduler."
|
| 108 |
+
)
|
| 109 |
+
scheduler.set_timesteps(timesteps=timesteps, device=device, **kwargs)
|
| 110 |
+
timesteps = scheduler.timesteps
|
| 111 |
+
num_inference_steps = len(timesteps)
|
| 112 |
+
else:
|
| 113 |
+
scheduler.set_timesteps(num_inference_steps, device=device, **kwargs)
|
| 114 |
+
timesteps = scheduler.timesteps
|
| 115 |
+
return timesteps, num_inference_steps
|
| 116 |
+
|
| 117 |
+
|
| 118 |
+
class FOFPredPipeline(DiffusionPipeline, OmniGen2LoraLoaderMixin):
|
| 119 |
+
"""
|
| 120 |
+
Pipeline for text-to-image generation using OmniGen2.
|
| 121 |
+
|
| 122 |
+
This pipeline implements a text-to-image generation model that uses:
|
| 123 |
+
- Qwen2.5-VL for text encoding
|
| 124 |
+
- A custom transformer architecture for image generation
|
| 125 |
+
- VAE for image encoding/decoding
|
| 126 |
+
- FlowMatchEulerDiscreteScheduler for noise scheduling
|
| 127 |
+
|
| 128 |
+
Args:
|
| 129 |
+
transformer (OmniGen2Transformer3DModel): The transformer model for image generation.
|
| 130 |
+
vae (AutoencoderKL): The VAE model for image encoding/decoding.
|
| 131 |
+
scheduler (FlowMatchEulerDiscreteScheduler): The scheduler for noise scheduling.
|
| 132 |
+
text_encoder (Qwen2_5_VLModel): The text encoder model.
|
| 133 |
+
tokenizer (Union[Qwen2Tokenizer, Qwen2TokenizerFast]): The tokenizer for text processing.
|
| 134 |
+
"""
|
| 135 |
+
|
| 136 |
+
model_cpu_offload_seq = "mllm->transformer->vae"
|
| 137 |
+
|
| 138 |
+
def __init__(
|
| 139 |
+
self,
|
| 140 |
+
transformer: OmniGen2Transformer3DModel,
|
| 141 |
+
vae: AutoencoderKL,
|
| 142 |
+
scheduler: FlowMatchEulerDiscreteScheduler,
|
| 143 |
+
mllm: Qwen2_5_VLForConditionalGeneration,
|
| 144 |
+
processor,
|
| 145 |
+
) -> None:
|
| 146 |
+
"""
|
| 147 |
+
Initialize the OmniGen2 pipeline.
|
| 148 |
+
|
| 149 |
+
Args:
|
| 150 |
+
transformer: The transformer model for image generation.
|
| 151 |
+
vae: The VAE model for image encoding/decoding.
|
| 152 |
+
scheduler: The scheduler for noise scheduling.
|
| 153 |
+
text_encoder: The text encoder model.
|
| 154 |
+
tokenizer: The tokenizer for text processing.
|
| 155 |
+
"""
|
| 156 |
+
super().__init__()
|
| 157 |
+
|
| 158 |
+
self.register_modules(
|
| 159 |
+
transformer=transformer,
|
| 160 |
+
vae=vae,
|
| 161 |
+
scheduler=scheduler,
|
| 162 |
+
mllm=mllm,
|
| 163 |
+
processor=processor,
|
| 164 |
+
)
|
| 165 |
+
self.vae_scale_factor = (
|
| 166 |
+
2 ** (len(self.vae.config.block_out_channels) - 1)
|
| 167 |
+
if hasattr(self, "vae") and self.vae is not None
|
| 168 |
+
else 8
|
| 169 |
+
)
|
| 170 |
+
self.image_processor = OmniGen2ImageProcessor(
|
| 171 |
+
vae_scale_factor=self.vae_scale_factor * 2, do_resize=True
|
| 172 |
+
)
|
| 173 |
+
self.default_sample_size = 128
|
| 174 |
+
|
| 175 |
+
def prepare_latents(
|
| 176 |
+
self,
|
| 177 |
+
batch_size: int,
|
| 178 |
+
num_channels_latents: int,
|
| 179 |
+
height: int,
|
| 180 |
+
width: int,
|
| 181 |
+
dtype: torch.dtype,
|
| 182 |
+
device: torch.device,
|
| 183 |
+
generator: Optional[torch.Generator],
|
| 184 |
+
latents: Optional[torch.FloatTensor] = None,
|
| 185 |
+
frame_count: int = 1,
|
| 186 |
+
) -> torch.FloatTensor:
|
| 187 |
+
"""
|
| 188 |
+
Prepare the initial latents for the diffusion process.
|
| 189 |
+
|
| 190 |
+
Args:
|
| 191 |
+
batch_size: The number of images to generate.
|
| 192 |
+
num_channels_latents: The number of channels in the latent space.
|
| 193 |
+
height: The height of the generated image.
|
| 194 |
+
width: The width of the generated image.
|
| 195 |
+
dtype: The data type of the latents.
|
| 196 |
+
device: The device to place the latents on.
|
| 197 |
+
generator: The random number generator to use.
|
| 198 |
+
latents: Optional pre-computed latents to use instead of random initialization.
|
| 199 |
+
frame_count: The number of frames to output.
|
| 200 |
+
|
| 201 |
+
Returns:
|
| 202 |
+
torch.FloatTensor: The prepared latents tensor.
|
| 203 |
+
"""
|
| 204 |
+
height = int(height) // self.vae_scale_factor
|
| 205 |
+
width = int(width) // self.vae_scale_factor
|
| 206 |
+
|
| 207 |
+
if frame_count > 1:
|
| 208 |
+
shape = (batch_size, frame_count, num_channels_latents, height, width)
|
| 209 |
+
else:
|
| 210 |
+
shape = (batch_size, num_channels_latents, height, width)
|
| 211 |
+
|
| 212 |
+
if latents is None:
|
| 213 |
+
latents = randn_tensor(
|
| 214 |
+
shape, generator=generator, device=device, dtype=dtype
|
| 215 |
+
)
|
| 216 |
+
else:
|
| 217 |
+
latents = latents.to(device)
|
| 218 |
+
return latents
|
| 219 |
+
|
| 220 |
+
def encode_vae(self, img: torch.FloatTensor) -> torch.FloatTensor:
|
| 221 |
+
"""
|
| 222 |
+
Encode an image into the VAE latent space.
|
| 223 |
+
|
| 224 |
+
Args:
|
| 225 |
+
img: The input image tensor to encode.
|
| 226 |
+
|
| 227 |
+
Returns:
|
| 228 |
+
torch.FloatTensor: The encoded latent representation.
|
| 229 |
+
"""
|
| 230 |
+
z0 = self.vae.encode(img.to(dtype=self.vae.dtype)).latent_dist.sample()
|
| 231 |
+
if self.vae.config.shift_factor is not None:
|
| 232 |
+
z0 = z0 - self.vae.config.shift_factor
|
| 233 |
+
if self.vae.config.scaling_factor is not None:
|
| 234 |
+
z0 = z0 * self.vae.config.scaling_factor
|
| 235 |
+
z0 = z0.to(dtype=self.vae.dtype)
|
| 236 |
+
return z0
|
| 237 |
+
|
| 238 |
+
def prepare_image(
|
| 239 |
+
self,
|
| 240 |
+
images: Union[List[PIL.Image.Image], PIL.Image.Image],
|
| 241 |
+
batch_size: int,
|
| 242 |
+
num_images_per_prompt: int,
|
| 243 |
+
max_pixels: int,
|
| 244 |
+
max_side_length: int,
|
| 245 |
+
device: torch.device,
|
| 246 |
+
dtype: torch.dtype,
|
| 247 |
+
) -> List[Optional[torch.FloatTensor]]:
|
| 248 |
+
"""
|
| 249 |
+
Prepare input images for processing by encoding them into the VAE latent space.
|
| 250 |
+
|
| 251 |
+
Args:
|
| 252 |
+
images: Single image or list of images to process.
|
| 253 |
+
batch_size: The number of images to generate per prompt.
|
| 254 |
+
num_images_per_prompt: The number of images to generate for each prompt.
|
| 255 |
+
device: The device to place the encoded latents on.
|
| 256 |
+
dtype: The data type of the encoded latents.
|
| 257 |
+
|
| 258 |
+
Returns:
|
| 259 |
+
List[Optional[torch.FloatTensor]]: List of encoded latent representations for each image.
|
| 260 |
+
"""
|
| 261 |
+
if batch_size == 1:
|
| 262 |
+
images = [images]
|
| 263 |
+
latents = []
|
| 264 |
+
for i, img in enumerate(images):
|
| 265 |
+
if img is not None and len(img) > 0:
|
| 266 |
+
ref_latents = []
|
| 267 |
+
for j, img_j in enumerate(img):
|
| 268 |
+
img_j = self.image_processor.preprocess(
|
| 269 |
+
img_j, max_pixels=max_pixels, max_side_length=max_side_length
|
| 270 |
+
)
|
| 271 |
+
ref_latents.append(
|
| 272 |
+
self.encode_vae(img_j.to(device=device)).squeeze(0)
|
| 273 |
+
)
|
| 274 |
+
else:
|
| 275 |
+
ref_latents = None
|
| 276 |
+
for _ in range(num_images_per_prompt):
|
| 277 |
+
latents.append(ref_latents)
|
| 278 |
+
|
| 279 |
+
return latents
|
| 280 |
+
|
| 281 |
+
def _get_qwen2_prompt_embeds(
|
| 282 |
+
self,
|
| 283 |
+
prompt: Union[str, List[str]],
|
| 284 |
+
device: Optional[torch.device] = None,
|
| 285 |
+
max_sequence_length: int = 256,
|
| 286 |
+
) -> Tuple[torch.Tensor, torch.Tensor]:
|
| 287 |
+
"""
|
| 288 |
+
Get prompt embeddings from the Qwen2 text encoder.
|
| 289 |
+
|
| 290 |
+
Args:
|
| 291 |
+
prompt: The prompt or list of prompts to encode.
|
| 292 |
+
device: The device to place the embeddings on. If None, uses the pipeline's device.
|
| 293 |
+
max_sequence_length: Maximum sequence length for tokenization.
|
| 294 |
+
|
| 295 |
+
Returns:
|
| 296 |
+
Tuple[torch.Tensor, torch.Tensor]: A tuple containing:
|
| 297 |
+
- The prompt embeddings tensor
|
| 298 |
+
- The attention mask tensor
|
| 299 |
+
|
| 300 |
+
Raises:
|
| 301 |
+
Warning: If the input text is truncated due to sequence length limitations.
|
| 302 |
+
"""
|
| 303 |
+
device = device or self._execution_device
|
| 304 |
+
prompt = [prompt] if isinstance(prompt, str) else prompt
|
| 305 |
+
# text_inputs = self.processor.tokenizer(
|
| 306 |
+
# prompt,
|
| 307 |
+
# padding="max_length",
|
| 308 |
+
# max_length=max_sequence_length,
|
| 309 |
+
# truncation=True,
|
| 310 |
+
# return_tensors="pt",
|
| 311 |
+
# )
|
| 312 |
+
text_inputs = self.processor.tokenizer(
|
| 313 |
+
prompt,
|
| 314 |
+
padding="longest",
|
| 315 |
+
max_length=max_sequence_length,
|
| 316 |
+
truncation=True,
|
| 317 |
+
return_tensors="pt",
|
| 318 |
+
)
|
| 319 |
+
|
| 320 |
+
text_input_ids = text_inputs.input_ids.to(device)
|
| 321 |
+
untruncated_ids = self.processor.tokenizer(
|
| 322 |
+
prompt, padding="longest", return_tensors="pt"
|
| 323 |
+
).input_ids.to(device)
|
| 324 |
+
|
| 325 |
+
if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal(
|
| 326 |
+
text_input_ids, untruncated_ids
|
| 327 |
+
):
|
| 328 |
+
removed_text = self.processor.tokenizer.batch_decode(
|
| 329 |
+
untruncated_ids[:, max_sequence_length - 1 : -1]
|
| 330 |
+
)
|
| 331 |
+
logger.warning(
|
| 332 |
+
"The following part of your input was truncated because Gemma can only handle sequences up to"
|
| 333 |
+
f" {max_sequence_length} tokens: {removed_text}"
|
| 334 |
+
)
|
| 335 |
+
|
| 336 |
+
prompt_attention_mask = text_inputs.attention_mask.to(device)
|
| 337 |
+
prompt_embeds = self.mllm(
|
| 338 |
+
text_input_ids,
|
| 339 |
+
attention_mask=prompt_attention_mask,
|
| 340 |
+
output_hidden_states=True,
|
| 341 |
+
).hidden_states[-1]
|
| 342 |
+
|
| 343 |
+
if self.mllm is not None:
|
| 344 |
+
dtype = self.mllm.dtype
|
| 345 |
+
elif self.transformer is not None:
|
| 346 |
+
dtype = self.transformer.dtype
|
| 347 |
+
else:
|
| 348 |
+
dtype = None
|
| 349 |
+
|
| 350 |
+
prompt_embeds = prompt_embeds.to(dtype=dtype, device=device)
|
| 351 |
+
|
| 352 |
+
return prompt_embeds, prompt_attention_mask
|
| 353 |
+
|
| 354 |
+
def _apply_chat_template(self, prompt: str):
|
| 355 |
+
prompt = [
|
| 356 |
+
{
|
| 357 |
+
"role": "system",
|
| 358 |
+
"content": "You are a helpful assistant that generates high-quality images based on user instructions.",
|
| 359 |
+
},
|
| 360 |
+
{"role": "user", "content": prompt},
|
| 361 |
+
]
|
| 362 |
+
prompt = self.processor.tokenizer.apply_chat_template(
|
| 363 |
+
prompt, tokenize=False, add_generation_prompt=False
|
| 364 |
+
)
|
| 365 |
+
return prompt
|
| 366 |
+
|
| 367 |
+
def encode_prompt(
|
| 368 |
+
self,
|
| 369 |
+
prompt: Union[str, List[str]],
|
| 370 |
+
do_classifier_free_guidance: bool = True,
|
| 371 |
+
negative_prompt: Optional[Union[str, List[str]]] = None,
|
| 372 |
+
num_images_per_prompt: int = 1,
|
| 373 |
+
device: Optional[torch.device] = None,
|
| 374 |
+
prompt_embeds: Optional[torch.Tensor] = None,
|
| 375 |
+
negative_prompt_embeds: Optional[torch.Tensor] = None,
|
| 376 |
+
prompt_attention_mask: Optional[torch.Tensor] = None,
|
| 377 |
+
negative_prompt_attention_mask: Optional[torch.Tensor] = None,
|
| 378 |
+
max_sequence_length: int = 256,
|
| 379 |
+
) -> Tuple[torch.Tensor, torch.Tensor, torch.Tensor, torch.Tensor]:
|
| 380 |
+
r"""
|
| 381 |
+
Encodes the prompt into text encoder hidden states.
|
| 382 |
+
|
| 383 |
+
Args:
|
| 384 |
+
prompt (`str` or `List[str]`, *optional*):
|
| 385 |
+
prompt to be encoded
|
| 386 |
+
negative_prompt (`str` or `List[str]`, *optional*):
|
| 387 |
+
The prompt not to guide the image generation. If not defined, one has to pass `negative_prompt_embeds`
|
| 388 |
+
instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is less than `1`). For
|
| 389 |
+
Lumina-T2I, this should be "".
|
| 390 |
+
do_classifier_free_guidance (`bool`, *optional*, defaults to `True`):
|
| 391 |
+
whether to use classifier free guidance or not
|
| 392 |
+
num_images_per_prompt (`int`, *optional*, defaults to 1):
|
| 393 |
+
number of images that should be generated per prompt
|
| 394 |
+
device: (`torch.device`, *optional*):
|
| 395 |
+
torch device to place the resulting embeddings on
|
| 396 |
+
prompt_embeds (`torch.Tensor`, *optional*):
|
| 397 |
+
Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not
|
| 398 |
+
provided, text embeddings will be generated from `prompt` input argument.
|
| 399 |
+
negative_prompt_embeds (`torch.Tensor`, *optional*):
|
| 400 |
+
Pre-generated negative text embeddings. For Lumina-T2I, it's should be the embeddings of the "" string.
|
| 401 |
+
max_sequence_length (`int`, defaults to `256`):
|
| 402 |
+
Maximum sequence length to use for the prompt.
|
| 403 |
+
"""
|
| 404 |
+
device = device or self._execution_device
|
| 405 |
+
|
| 406 |
+
prompt = [prompt] if isinstance(prompt, str) else prompt
|
| 407 |
+
prompt = [self._apply_chat_template(_prompt) for _prompt in prompt]
|
| 408 |
+
|
| 409 |
+
if prompt is not None:
|
| 410 |
+
batch_size = len(prompt)
|
| 411 |
+
else:
|
| 412 |
+
batch_size = prompt_embeds.shape[0]
|
| 413 |
+
if prompt_embeds is None:
|
| 414 |
+
prompt_embeds, prompt_attention_mask = self._get_qwen2_prompt_embeds(
|
| 415 |
+
prompt=prompt, device=device, max_sequence_length=max_sequence_length
|
| 416 |
+
)
|
| 417 |
+
|
| 418 |
+
batch_size, seq_len, _ = prompt_embeds.shape
|
| 419 |
+
# duplicate text embeddings and attention mask for each generation per prompt, using mps friendly method
|
| 420 |
+
prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1)
|
| 421 |
+
prompt_embeds = prompt_embeds.view(
|
| 422 |
+
batch_size * num_images_per_prompt, seq_len, -1
|
| 423 |
+
)
|
| 424 |
+
prompt_attention_mask = prompt_attention_mask.repeat(num_images_per_prompt, 1)
|
| 425 |
+
prompt_attention_mask = prompt_attention_mask.view(
|
| 426 |
+
batch_size * num_images_per_prompt, -1
|
| 427 |
+
)
|
| 428 |
+
|
| 429 |
+
# Get negative embeddings for classifier free guidance
|
| 430 |
+
if do_classifier_free_guidance and negative_prompt_embeds is None:
|
| 431 |
+
negative_prompt = negative_prompt if negative_prompt is not None else ""
|
| 432 |
+
|
| 433 |
+
# Normalize str to list
|
| 434 |
+
negative_prompt = (
|
| 435 |
+
batch_size * [negative_prompt]
|
| 436 |
+
if isinstance(negative_prompt, str)
|
| 437 |
+
else negative_prompt
|
| 438 |
+
)
|
| 439 |
+
negative_prompt = [
|
| 440 |
+
self._apply_chat_template(_negative_prompt)
|
| 441 |
+
for _negative_prompt in negative_prompt
|
| 442 |
+
]
|
| 443 |
+
|
| 444 |
+
if prompt is not None and type(prompt) is not type(negative_prompt):
|
| 445 |
+
raise TypeError(
|
| 446 |
+
f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !="
|
| 447 |
+
f" {type(prompt)}."
|
| 448 |
+
)
|
| 449 |
+
elif isinstance(negative_prompt, str):
|
| 450 |
+
negative_prompt = [negative_prompt]
|
| 451 |
+
elif batch_size != len(negative_prompt):
|
| 452 |
+
raise ValueError(
|
| 453 |
+
f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:"
|
| 454 |
+
f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches"
|
| 455 |
+
" the batch size of `prompt`."
|
| 456 |
+
)
|
| 457 |
+
negative_prompt_embeds, negative_prompt_attention_mask = (
|
| 458 |
+
self._get_qwen2_prompt_embeds(
|
| 459 |
+
prompt=negative_prompt,
|
| 460 |
+
device=device,
|
| 461 |
+
max_sequence_length=max_sequence_length,
|
| 462 |
+
)
|
| 463 |
+
)
|
| 464 |
+
|
| 465 |
+
batch_size, seq_len, _ = negative_prompt_embeds.shape
|
| 466 |
+
# duplicate text embeddings and attention mask for each generation per prompt, using mps friendly method
|
| 467 |
+
negative_prompt_embeds = negative_prompt_embeds.repeat(
|
| 468 |
+
1, num_images_per_prompt, 1
|
| 469 |
+
)
|
| 470 |
+
negative_prompt_embeds = negative_prompt_embeds.view(
|
| 471 |
+
batch_size * num_images_per_prompt, seq_len, -1
|
| 472 |
+
)
|
| 473 |
+
negative_prompt_attention_mask = negative_prompt_attention_mask.repeat(
|
| 474 |
+
num_images_per_prompt, 1
|
| 475 |
+
)
|
| 476 |
+
negative_prompt_attention_mask = negative_prompt_attention_mask.view(
|
| 477 |
+
batch_size * num_images_per_prompt, -1
|
| 478 |
+
)
|
| 479 |
+
|
| 480 |
+
return (
|
| 481 |
+
prompt_embeds,
|
| 482 |
+
prompt_attention_mask,
|
| 483 |
+
negative_prompt_embeds,
|
| 484 |
+
negative_prompt_attention_mask,
|
| 485 |
+
)
|
| 486 |
+
|
| 487 |
+
@property
|
| 488 |
+
def num_timesteps(self):
|
| 489 |
+
return self._num_timesteps
|
| 490 |
+
|
| 491 |
+
@property
|
| 492 |
+
def text_guidance_scale(self):
|
| 493 |
+
return self._text_guidance_scale
|
| 494 |
+
|
| 495 |
+
@property
|
| 496 |
+
def image_guidance_scale(self):
|
| 497 |
+
return self._image_guidance_scale
|
| 498 |
+
|
| 499 |
+
@property
|
| 500 |
+
def cfg_range(self):
|
| 501 |
+
return self._cfg_range
|
| 502 |
+
|
| 503 |
+
@torch.no_grad()
|
| 504 |
+
def __call__(
|
| 505 |
+
self,
|
| 506 |
+
prompt: Optional[Union[str, List[str]]] = None,
|
| 507 |
+
negative_prompt: Optional[Union[str, List[str]]] = None,
|
| 508 |
+
prompt_embeds: Optional[torch.FloatTensor] = None,
|
| 509 |
+
negative_prompt_embeds: Optional[torch.FloatTensor] = None,
|
| 510 |
+
prompt_attention_mask: Optional[torch.LongTensor] = None,
|
| 511 |
+
negative_prompt_attention_mask: Optional[torch.LongTensor] = None,
|
| 512 |
+
max_sequence_length: Optional[int] = None,
|
| 513 |
+
callback_on_step_end_tensor_inputs: Optional[List[str]] = None,
|
| 514 |
+
input_images: Optional[List[PIL.Image.Image]] = None,
|
| 515 |
+
num_images_per_prompt: int = 1,
|
| 516 |
+
height: Optional[int] = None,
|
| 517 |
+
width: Optional[int] = None,
|
| 518 |
+
max_pixels: int = 1024 * 1024,
|
| 519 |
+
max_input_image_side_length: int = 1024,
|
| 520 |
+
align_res: bool = True,
|
| 521 |
+
num_inference_steps: int = 28,
|
| 522 |
+
text_guidance_scale: float = 4.0,
|
| 523 |
+
image_guidance_scale: float = 1.0,
|
| 524 |
+
cfg_range: Tuple[float, float] = (0.0, 1.0),
|
| 525 |
+
attention_kwargs: Optional[Dict[str, Any]] = None,
|
| 526 |
+
timesteps: List[int] = None,
|
| 527 |
+
generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None,
|
| 528 |
+
latents: Optional[torch.FloatTensor] = None,
|
| 529 |
+
frame_count: int = 1,
|
| 530 |
+
output_type: Optional[str] = "pil",
|
| 531 |
+
return_dict: bool = True,
|
| 532 |
+
verbose: bool = False,
|
| 533 |
+
step_func=None,
|
| 534 |
+
get_latents_text_embeds=False,
|
| 535 |
+
):
|
| 536 |
+
height = height or self.default_sample_size * self.vae_scale_factor
|
| 537 |
+
width = width or self.default_sample_size * self.vae_scale_factor
|
| 538 |
+
|
| 539 |
+
self._text_guidance_scale = text_guidance_scale
|
| 540 |
+
self._image_guidance_scale = image_guidance_scale
|
| 541 |
+
self._cfg_range = cfg_range
|
| 542 |
+
self._attention_kwargs = attention_kwargs
|
| 543 |
+
|
| 544 |
+
# 2. Define call parameters
|
| 545 |
+
if prompt is not None and isinstance(prompt, str):
|
| 546 |
+
batch_size = 1
|
| 547 |
+
elif prompt is not None and isinstance(prompt, list):
|
| 548 |
+
batch_size = len(prompt)
|
| 549 |
+
else:
|
| 550 |
+
batch_size = prompt_embeds.shape[0]
|
| 551 |
+
|
| 552 |
+
device = self._execution_device
|
| 553 |
+
|
| 554 |
+
# 3. Encode input prompt
|
| 555 |
+
(
|
| 556 |
+
prompt_embeds,
|
| 557 |
+
prompt_attention_mask,
|
| 558 |
+
negative_prompt_embeds,
|
| 559 |
+
negative_prompt_attention_mask,
|
| 560 |
+
) = self.encode_prompt(
|
| 561 |
+
prompt,
|
| 562 |
+
self.text_guidance_scale > 1.0,
|
| 563 |
+
negative_prompt=negative_prompt,
|
| 564 |
+
num_images_per_prompt=num_images_per_prompt,
|
| 565 |
+
device=device,
|
| 566 |
+
prompt_embeds=prompt_embeds,
|
| 567 |
+
negative_prompt_embeds=negative_prompt_embeds,
|
| 568 |
+
prompt_attention_mask=prompt_attention_mask,
|
| 569 |
+
negative_prompt_attention_mask=negative_prompt_attention_mask,
|
| 570 |
+
max_sequence_length=max_sequence_length,
|
| 571 |
+
)
|
| 572 |
+
|
| 573 |
+
dtype = self.vae.dtype
|
| 574 |
+
# 3. Prepare control image
|
| 575 |
+
ref_latents = self.prepare_image(
|
| 576 |
+
images=input_images,
|
| 577 |
+
batch_size=batch_size,
|
| 578 |
+
num_images_per_prompt=num_images_per_prompt,
|
| 579 |
+
max_pixels=max_pixels,
|
| 580 |
+
max_side_length=max_input_image_side_length,
|
| 581 |
+
device=device,
|
| 582 |
+
dtype=dtype,
|
| 583 |
+
)
|
| 584 |
+
|
| 585 |
+
if input_images is None:
|
| 586 |
+
input_images = []
|
| 587 |
+
|
| 588 |
+
if len(input_images) == 1 and align_res:
|
| 589 |
+
width, height = (
|
| 590 |
+
ref_latents[0][0].shape[-1] * self.vae_scale_factor,
|
| 591 |
+
ref_latents[0][0].shape[-2] * self.vae_scale_factor,
|
| 592 |
+
)
|
| 593 |
+
ori_width, ori_height = width, height
|
| 594 |
+
else:
|
| 595 |
+
ori_width, ori_height = width, height
|
| 596 |
+
|
| 597 |
+
cur_pixels = height * width
|
| 598 |
+
ratio = (max_pixels / cur_pixels) ** 0.5
|
| 599 |
+
ratio = min(ratio, 1.0)
|
| 600 |
+
|
| 601 |
+
height, width = (
|
| 602 |
+
int(height * ratio) // 16 * 16,
|
| 603 |
+
int(width * ratio) // 16 * 16,
|
| 604 |
+
)
|
| 605 |
+
|
| 606 |
+
if len(input_images) == 0:
|
| 607 |
+
self._image_guidance_scale = 1
|
| 608 |
+
|
| 609 |
+
# 4. Prepare latents.
|
| 610 |
+
latent_channels = self.transformer.config.in_channels
|
| 611 |
+
latents = self.prepare_latents(
|
| 612 |
+
batch_size * num_images_per_prompt,
|
| 613 |
+
latent_channels,
|
| 614 |
+
height,
|
| 615 |
+
width,
|
| 616 |
+
prompt_embeds.dtype,
|
| 617 |
+
device,
|
| 618 |
+
generator,
|
| 619 |
+
latents,
|
| 620 |
+
frame_count,
|
| 621 |
+
)
|
| 622 |
+
|
| 623 |
+
freqs_cis = OmniGen2RotaryPosEmbed.get_freqs_cis(
|
| 624 |
+
self.transformer.config.axes_dim_rope,
|
| 625 |
+
self.transformer.config.axes_lens,
|
| 626 |
+
theta=10000,
|
| 627 |
+
)
|
| 628 |
+
|
| 629 |
+
image = self.processing(
|
| 630 |
+
latents=latents,
|
| 631 |
+
ref_latents=ref_latents,
|
| 632 |
+
prompt_embeds=prompt_embeds,
|
| 633 |
+
freqs_cis=freqs_cis,
|
| 634 |
+
negative_prompt_embeds=negative_prompt_embeds,
|
| 635 |
+
prompt_attention_mask=prompt_attention_mask,
|
| 636 |
+
negative_prompt_attention_mask=negative_prompt_attention_mask,
|
| 637 |
+
num_inference_steps=num_inference_steps,
|
| 638 |
+
timesteps=timesteps,
|
| 639 |
+
device=device,
|
| 640 |
+
dtype=dtype,
|
| 641 |
+
verbose=verbose,
|
| 642 |
+
step_func=step_func,
|
| 643 |
+
get_latents_text_embeds=get_latents_text_embeds,
|
| 644 |
+
)
|
| 645 |
+
|
| 646 |
+
if get_latents_text_embeds:
|
| 647 |
+
return image, prompt_embeds
|
| 648 |
+
|
| 649 |
+
if len(image.shape) == 4:
|
| 650 |
+
image = F.interpolate(image, size=(ori_height, ori_width), mode="bilinear")
|
| 651 |
+
image = self.image_processor.postprocess(image, output_type=output_type)
|
| 652 |
+
else:
|
| 653 |
+
image = [
|
| 654 |
+
F.interpolate(
|
| 655 |
+
image[:, i], size=(ori_height, ori_width), mode="bilinear"
|
| 656 |
+
)
|
| 657 |
+
for i in range(image.shape[1])
|
| 658 |
+
]
|
| 659 |
+
image = [
|
| 660 |
+
self.image_processor.postprocess(x, output_type=output_type)
|
| 661 |
+
for x in image
|
| 662 |
+
]
|
| 663 |
+
image = torch.stack(image, dim=1)
|
| 664 |
+
|
| 665 |
+
# Offload all models
|
| 666 |
+
self.maybe_free_model_hooks()
|
| 667 |
+
|
| 668 |
+
if not return_dict:
|
| 669 |
+
return image
|
| 670 |
+
else:
|
| 671 |
+
return FMPipelineOutput(images=image)
|
| 672 |
+
|
| 673 |
+
def processing(
|
| 674 |
+
self,
|
| 675 |
+
latents,
|
| 676 |
+
ref_latents,
|
| 677 |
+
prompt_embeds,
|
| 678 |
+
freqs_cis,
|
| 679 |
+
negative_prompt_embeds,
|
| 680 |
+
prompt_attention_mask,
|
| 681 |
+
negative_prompt_attention_mask,
|
| 682 |
+
num_inference_steps,
|
| 683 |
+
timesteps,
|
| 684 |
+
device,
|
| 685 |
+
dtype,
|
| 686 |
+
verbose,
|
| 687 |
+
step_func=None,
|
| 688 |
+
get_latents_text_embeds=False,
|
| 689 |
+
):
|
| 690 |
+
batch_size = latents.shape[0]
|
| 691 |
+
|
| 692 |
+
timesteps, num_inference_steps = retrieve_timesteps(
|
| 693 |
+
self.scheduler,
|
| 694 |
+
num_inference_steps,
|
| 695 |
+
device,
|
| 696 |
+
timesteps,
|
| 697 |
+
num_tokens=latents.shape[-2] * latents.shape[-1],
|
| 698 |
+
)
|
| 699 |
+
num_warmup_steps = max(
|
| 700 |
+
len(timesteps) - num_inference_steps * self.scheduler.order, 0
|
| 701 |
+
)
|
| 702 |
+
self._num_timesteps = len(timesteps)
|
| 703 |
+
|
| 704 |
+
enable_taylorseer = getattr(self, "enable_taylorseer", False)
|
| 705 |
+
if enable_taylorseer:
|
| 706 |
+
model_pred_cache_dic, model_pred_current = cache_init(
|
| 707 |
+
self, num_inference_steps
|
| 708 |
+
)
|
| 709 |
+
model_pred_ref_cache_dic, model_pred_ref_current = cache_init(
|
| 710 |
+
self, num_inference_steps
|
| 711 |
+
)
|
| 712 |
+
model_pred_uncond_cache_dic, model_pred_uncond_current = cache_init(
|
| 713 |
+
self, num_inference_steps
|
| 714 |
+
)
|
| 715 |
+
self.transformer.enable_taylorseer = True
|
| 716 |
+
elif self.transformer.enable_teacache:
|
| 717 |
+
# Use different TeaCacheParams for different conditions
|
| 718 |
+
teacache_params = TeaCacheParams()
|
| 719 |
+
teacache_params_uncond = TeaCacheParams()
|
| 720 |
+
teacache_params_ref = TeaCacheParams()
|
| 721 |
+
|
| 722 |
+
with self.progress_bar(total=num_inference_steps) as progress_bar:
|
| 723 |
+
for i, t in enumerate(timesteps):
|
| 724 |
+
if enable_taylorseer:
|
| 725 |
+
self.transformer.cache_dic = model_pred_cache_dic
|
| 726 |
+
self.transformer.current = model_pred_current
|
| 727 |
+
elif self.transformer.enable_teacache:
|
| 728 |
+
teacache_params.is_first_or_last_step = (
|
| 729 |
+
i == 0 or i == len(timesteps) - 1
|
| 730 |
+
)
|
| 731 |
+
self.transformer.teacache_params = teacache_params
|
| 732 |
+
|
| 733 |
+
model_pred = self.predict(
|
| 734 |
+
t=t,
|
| 735 |
+
latents=latents,
|
| 736 |
+
prompt_embeds=prompt_embeds,
|
| 737 |
+
freqs_cis=freqs_cis,
|
| 738 |
+
prompt_attention_mask=prompt_attention_mask,
|
| 739 |
+
ref_image_hidden_states=ref_latents,
|
| 740 |
+
)
|
| 741 |
+
text_guidance_scale = (
|
| 742 |
+
self.text_guidance_scale
|
| 743 |
+
if self.cfg_range[0] <= i / len(timesteps) <= self.cfg_range[1]
|
| 744 |
+
else 1.0
|
| 745 |
+
)
|
| 746 |
+
image_guidance_scale = (
|
| 747 |
+
self.image_guidance_scale
|
| 748 |
+
if self.cfg_range[0] <= i / len(timesteps) <= self.cfg_range[1]
|
| 749 |
+
else 1.0
|
| 750 |
+
)
|
| 751 |
+
|
| 752 |
+
if text_guidance_scale > 1.0 and image_guidance_scale > 1.0:
|
| 753 |
+
if enable_taylorseer:
|
| 754 |
+
self.transformer.cache_dic = model_pred_ref_cache_dic
|
| 755 |
+
self.transformer.current = model_pred_ref_current
|
| 756 |
+
elif self.transformer.enable_teacache:
|
| 757 |
+
teacache_params_ref.is_first_or_last_step = (
|
| 758 |
+
i == 0 or i == len(timesteps) - 1
|
| 759 |
+
)
|
| 760 |
+
self.transformer.teacache_params = teacache_params_ref
|
| 761 |
+
|
| 762 |
+
model_pred_ref = self.predict(
|
| 763 |
+
t=t,
|
| 764 |
+
latents=latents,
|
| 765 |
+
prompt_embeds=negative_prompt_embeds,
|
| 766 |
+
freqs_cis=freqs_cis,
|
| 767 |
+
prompt_attention_mask=negative_prompt_attention_mask,
|
| 768 |
+
ref_image_hidden_states=ref_latents,
|
| 769 |
+
)
|
| 770 |
+
|
| 771 |
+
if enable_taylorseer:
|
| 772 |
+
self.transformer.cache_dic = model_pred_uncond_cache_dic
|
| 773 |
+
self.transformer.current = model_pred_uncond_current
|
| 774 |
+
elif self.transformer.enable_teacache:
|
| 775 |
+
teacache_params_uncond.is_first_or_last_step = (
|
| 776 |
+
i == 0 or i == len(timesteps) - 1
|
| 777 |
+
)
|
| 778 |
+
self.transformer.teacache_params = teacache_params_uncond
|
| 779 |
+
|
| 780 |
+
model_pred_uncond = self.predict(
|
| 781 |
+
t=t,
|
| 782 |
+
latents=latents,
|
| 783 |
+
prompt_embeds=negative_prompt_embeds,
|
| 784 |
+
freqs_cis=freqs_cis,
|
| 785 |
+
prompt_attention_mask=negative_prompt_attention_mask,
|
| 786 |
+
ref_image_hidden_states=None,
|
| 787 |
+
)
|
| 788 |
+
|
| 789 |
+
model_pred = (
|
| 790 |
+
model_pred_uncond
|
| 791 |
+
+ image_guidance_scale * (model_pred_ref - model_pred_uncond)
|
| 792 |
+
+ text_guidance_scale * (model_pred - model_pred_ref)
|
| 793 |
+
)
|
| 794 |
+
elif text_guidance_scale > 1.0:
|
| 795 |
+
if enable_taylorseer:
|
| 796 |
+
self.transformer.cache_dic = model_pred_uncond_cache_dic
|
| 797 |
+
self.transformer.current = model_pred_uncond_current
|
| 798 |
+
elif self.transformer.enable_teacache:
|
| 799 |
+
teacache_params_uncond.is_first_or_last_step = (
|
| 800 |
+
i == 0 or i == len(timesteps) - 1
|
| 801 |
+
)
|
| 802 |
+
self.transformer.teacache_params = teacache_params_uncond
|
| 803 |
+
|
| 804 |
+
model_pred_uncond = self.predict(
|
| 805 |
+
t=t,
|
| 806 |
+
latents=latents,
|
| 807 |
+
prompt_embeds=negative_prompt_embeds,
|
| 808 |
+
freqs_cis=freqs_cis,
|
| 809 |
+
prompt_attention_mask=negative_prompt_attention_mask,
|
| 810 |
+
ref_image_hidden_states=None,
|
| 811 |
+
)
|
| 812 |
+
model_pred = model_pred_uncond + text_guidance_scale * (
|
| 813 |
+
model_pred - model_pred_uncond
|
| 814 |
+
)
|
| 815 |
+
|
| 816 |
+
latents = self.scheduler.step(
|
| 817 |
+
model_pred, t, latents, return_dict=False
|
| 818 |
+
)[0]
|
| 819 |
+
|
| 820 |
+
latents = latents.to(dtype=dtype)
|
| 821 |
+
|
| 822 |
+
if i == len(timesteps) - 1 or (
|
| 823 |
+
(i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0
|
| 824 |
+
):
|
| 825 |
+
progress_bar.update()
|
| 826 |
+
|
| 827 |
+
if step_func is not None:
|
| 828 |
+
step_func(i, self._num_timesteps)
|
| 829 |
+
|
| 830 |
+
if enable_taylorseer:
|
| 831 |
+
del (
|
| 832 |
+
model_pred_cache_dic,
|
| 833 |
+
model_pred_ref_cache_dic,
|
| 834 |
+
model_pred_uncond_cache_dic,
|
| 835 |
+
)
|
| 836 |
+
del model_pred_current, model_pred_ref_current, model_pred_uncond_current
|
| 837 |
+
|
| 838 |
+
latents = latents.to(dtype=dtype)
|
| 839 |
+
if get_latents_text_embeds:
|
| 840 |
+
return latents
|
| 841 |
+
|
| 842 |
+
if self.vae.config.scaling_factor is not None:
|
| 843 |
+
latents = latents / self.vae.config.scaling_factor
|
| 844 |
+
if self.vae.config.shift_factor is not None:
|
| 845 |
+
latents = latents + self.vae.config.shift_factor
|
| 846 |
+
if len(latents.shape) == 4:
|
| 847 |
+
image = self.vae.decode(latents, return_dict=False)[0]
|
| 848 |
+
else:
|
| 849 |
+
image = [
|
| 850 |
+
self.vae.decode(latents[:, i], return_dict=False)[0]
|
| 851 |
+
for i in range(latents.shape[1])
|
| 852 |
+
]
|
| 853 |
+
image = torch.stack(image, dim=1)
|
| 854 |
+
|
| 855 |
+
return image
|
| 856 |
+
|
| 857 |
+
def predict(
|
| 858 |
+
self,
|
| 859 |
+
t,
|
| 860 |
+
latents,
|
| 861 |
+
prompt_embeds,
|
| 862 |
+
freqs_cis,
|
| 863 |
+
prompt_attention_mask,
|
| 864 |
+
ref_image_hidden_states,
|
| 865 |
+
):
|
| 866 |
+
# broadcast to batch dimension in a way that's compatible with ONNX/Core ML
|
| 867 |
+
timestep = t.expand(latents.shape[0]).to(latents.dtype)
|
| 868 |
+
|
| 869 |
+
if len(latents.shape) == 4:
|
| 870 |
+
batch_size, num_channels_latents, height, width = latents.shape
|
| 871 |
+
is_temporal = False
|
| 872 |
+
else:
|
| 873 |
+
batch_size, num_frames, num_channels_latents, height, width = latents.shape
|
| 874 |
+
latents = [_latents for _latents in latents]
|
| 875 |
+
is_temporal = True
|
| 876 |
+
|
| 877 |
+
optional_kwargs = {}
|
| 878 |
+
if "ref_image_hidden_states" in set(
|
| 879 |
+
inspect.signature(self.transformer.forward).parameters.keys()
|
| 880 |
+
):
|
| 881 |
+
optional_kwargs["ref_image_hidden_states"] = ref_image_hidden_states
|
| 882 |
+
|
| 883 |
+
model_pred = self.transformer(
|
| 884 |
+
latents,
|
| 885 |
+
timestep,
|
| 886 |
+
prompt_embeds,
|
| 887 |
+
freqs_cis,
|
| 888 |
+
prompt_attention_mask,
|
| 889 |
+
**optional_kwargs,
|
| 890 |
+
)
|
| 891 |
+
|
| 892 |
+
if is_temporal:
|
| 893 |
+
model_pred = torch.stack(model_pred)
|
| 894 |
+
return model_pred
|