smoothieAI
commited on
Commit
·
af7ccfa
1
Parent(s):
f2e534c
Upload pipeline_animatediff_controlnet.py
Browse files- pipeline_animatediff_controlnet.py +1143 -0
pipeline_animatediff_controlnet.py
ADDED
@@ -0,0 +1,1143 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
# Copyright 2023 The HuggingFace Team. All rights reserved.
|
2 |
+
#
|
3 |
+
# Licensed under the Apache License, Version 2.0 (the "License");
|
4 |
+
# you may not use this file except in compliance with the License.
|
5 |
+
# You may obtain a copy of the License at
|
6 |
+
#
|
7 |
+
# http://www.apache.org/licenses/LICENSE-2.0
|
8 |
+
#
|
9 |
+
# Unless required by applicable law or agreed to in writing, software
|
10 |
+
# distributed under the License is distributed on an "AS IS" BASIS,
|
11 |
+
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
12 |
+
# See the License for the specific language governing permissions and
|
13 |
+
# limitations under the License.
|
14 |
+
|
15 |
+
import inspect
|
16 |
+
from dataclasses import dataclass
|
17 |
+
from typing import Any, Callable, Dict, List, Optional, Union
|
18 |
+
|
19 |
+
import numpy as np
|
20 |
+
import torch
|
21 |
+
import torch.nn.functional as F
|
22 |
+
from PIL import Image
|
23 |
+
from transformers import CLIPImageProcessor, CLIPTextModel, CLIPTokenizer, CLIPVisionModelWithProjection
|
24 |
+
|
25 |
+
from diffusers.image_processor import PipelineImageInput, VaeImageProcessor
|
26 |
+
from diffusers.loaders import IPAdapterMixin, LoraLoaderMixin, TextualInversionLoaderMixin
|
27 |
+
from diffusers.models import AutoencoderKL, ControlNetModel, UNet2DConditionModel, UNetMotionModel
|
28 |
+
from diffusers.models.lora import adjust_lora_scale_text_encoder
|
29 |
+
from diffusers.models.unet_motion_model import MotionAdapter
|
30 |
+
from diffusers.pipelines.controlnet.multicontrolnet import MultiControlNetModel
|
31 |
+
from diffusers.pipelines.pipeline_utils import DiffusionPipeline
|
32 |
+
from diffusers.schedulers import (
|
33 |
+
DDIMScheduler,
|
34 |
+
DPMSolverMultistepScheduler,
|
35 |
+
EulerAncestralDiscreteScheduler,
|
36 |
+
EulerDiscreteScheduler,
|
37 |
+
LMSDiscreteScheduler,
|
38 |
+
PNDMScheduler,
|
39 |
+
)
|
40 |
+
from diffusers.utils import USE_PEFT_BACKEND, BaseOutput, deprecate, logging, scale_lora_layers, unscale_lora_layers
|
41 |
+
from diffusers.utils.torch_utils import is_compiled_module, randn_tensor
|
42 |
+
|
43 |
+
|
44 |
+
logger = logging.get_logger(__name__) # pylint: disable=invalid-name
|
45 |
+
|
46 |
+
EXAMPLE_DOC_STRING = """
|
47 |
+
Examples:
|
48 |
+
```py
|
49 |
+
>>> import torch
|
50 |
+
>>> from diffusers import AutoencoderKL, ControlNetModel, MotionAdapter
|
51 |
+
>>> from diffusers.pipelines import DiffusionPipeline
|
52 |
+
>>> from diffusers.schedulers import DPMSolverMultistepScheduler
|
53 |
+
>>> from PIL import Image
|
54 |
+
|
55 |
+
>>> motion_id = "guoyww/animatediff-motion-adapter-v1-5-2"
|
56 |
+
>>> adapter = MotionAdapter.from_pretrained(motion_id)
|
57 |
+
>>> controlnet = ControlNetModel.from_pretrained("lllyasviel/control_v11p_sd15_openpose", torch_dtype=torch.float16)
|
58 |
+
>>> vae = AutoencoderKL.from_pretrained("stabilityai/sd-vae-ft-mse", torch_dtype=torch.float16)
|
59 |
+
|
60 |
+
>>> model_id = "SG161222/Realistic_Vision_V5.1_noVAE"
|
61 |
+
>>> pipe = DiffusionPipeline.from_pretrained(
|
62 |
+
... model_id,
|
63 |
+
... motion_adapter=adapter,
|
64 |
+
... controlnet=controlnet,
|
65 |
+
... vae=vae,
|
66 |
+
... custom_pipeline="pipeline_animatediff_controlnet",
|
67 |
+
... ).to(device="cuda", dtype=torch.float16)
|
68 |
+
>>> pipe.scheduler = DPMSolverMultistepScheduler.from_pretrained(
|
69 |
+
... model_id, subfolder="scheduler", clip_sample=False, timestep_spacing="linspace", steps_offset=1
|
70 |
+
... )
|
71 |
+
>>> pipe.enable_vae_slicing()
|
72 |
+
|
73 |
+
>>> conditioning_frames = []
|
74 |
+
>>> for i in range(1, 16 + 1):
|
75 |
+
... conditioning_frames.append(Image.open(f"frame_{i}.png"))
|
76 |
+
|
77 |
+
>>> prompt = "astronaut in space, dancing"
|
78 |
+
>>> negative_prompt = "bad quality, worst quality, jpeg artifacts, ugly"
|
79 |
+
>>> result = pipe(
|
80 |
+
... prompt=prompt,
|
81 |
+
... negative_prompt=negative_prompt,
|
82 |
+
... width=512,
|
83 |
+
... height=768,
|
84 |
+
... conditioning_frames=conditioning_frames,
|
85 |
+
... num_inference_steps=12,
|
86 |
+
... ).frames[0]
|
87 |
+
|
88 |
+
>>> from diffusers.utils import export_to_gif
|
89 |
+
>>> export_to_gif(result.frames[0], "result.gif")
|
90 |
+
```
|
91 |
+
"""
|
92 |
+
|
93 |
+
|
94 |
+
def tensor2vid(video: torch.Tensor, processor, output_type="np"):
|
95 |
+
# Based on:
|
96 |
+
# https://github.com/modelscope/modelscope/blob/1509fdb973e5871f37148a4b5e5964cafd43e64d/modelscope/pipelines/multi_modal/text_to_video_synthesis_pipeline.py#L78
|
97 |
+
|
98 |
+
batch_size, channels, num_frames, height, width = video.shape
|
99 |
+
outputs = []
|
100 |
+
for batch_idx in range(batch_size):
|
101 |
+
batch_vid = video[batch_idx].permute(1, 0, 2, 3)
|
102 |
+
batch_output = processor.postprocess(batch_vid, output_type)
|
103 |
+
|
104 |
+
outputs.append(batch_output)
|
105 |
+
|
106 |
+
return outputs
|
107 |
+
|
108 |
+
|
109 |
+
@dataclass
|
110 |
+
class AnimateDiffControlNetPipelineOutput(BaseOutput):
|
111 |
+
frames: Union[torch.Tensor, np.ndarray]
|
112 |
+
|
113 |
+
|
114 |
+
class AnimateDiffControlNetPipeline(DiffusionPipeline, TextualInversionLoaderMixin, IPAdapterMixin, LoraLoaderMixin):
|
115 |
+
r"""
|
116 |
+
Pipeline for text-to-video generation.
|
117 |
+
|
118 |
+
This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods
|
119 |
+
implemented for all pipelines (downloading, saving, running on a particular device, etc.).
|
120 |
+
|
121 |
+
The pipeline also inherits the following loading methods:
|
122 |
+
- [`~loaders.TextualInversionLoaderMixin.load_textual_inversion`] for loading textual inversion embeddings
|
123 |
+
- [`~loaders.LoraLoaderMixin.load_lora_weights`] for loading LoRA weights
|
124 |
+
- [`~loaders.LoraLoaderMixin.save_lora_weights`] for saving LoRA weights
|
125 |
+
- [`~loaders.IPAdapterMixin.load_ip_adapter`] for loading IP Adapters
|
126 |
+
|
127 |
+
Args:
|
128 |
+
vae ([`AutoencoderKL`]):
|
129 |
+
Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations.
|
130 |
+
text_encoder ([`CLIPTextModel`]):
|
131 |
+
Frozen text-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)).
|
132 |
+
tokenizer (`CLIPTokenizer`):
|
133 |
+
A [`~transformers.CLIPTokenizer`] to tokenize text.
|
134 |
+
unet ([`UNet2DConditionModel`]):
|
135 |
+
A [`UNet2DConditionModel`] used to create a UNetMotionModel to denoise the encoded video latents.
|
136 |
+
motion_adapter ([`MotionAdapter`]):
|
137 |
+
A [`MotionAdapter`] to be used in combination with `unet` to denoise the encoded video latents.
|
138 |
+
scheduler ([`SchedulerMixin`]):
|
139 |
+
A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of
|
140 |
+
[`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`].
|
141 |
+
"""
|
142 |
+
|
143 |
+
model_cpu_offload_seq = "text_encoder->unet->vae"
|
144 |
+
_optional_components = ["feature_extractor", "image_encoder"]
|
145 |
+
_callback_tensor_inputs = ["latents", "prompt_embeds", "negative_prompt_embeds"]
|
146 |
+
|
147 |
+
def __init__(
|
148 |
+
self,
|
149 |
+
vae: AutoencoderKL,
|
150 |
+
text_encoder: CLIPTextModel,
|
151 |
+
tokenizer: CLIPTokenizer,
|
152 |
+
unet: UNet2DConditionModel,
|
153 |
+
motion_adapter: MotionAdapter,
|
154 |
+
controlnet: Union[ControlNetModel, MultiControlNetModel],
|
155 |
+
scheduler: Union[
|
156 |
+
DDIMScheduler,
|
157 |
+
PNDMScheduler,
|
158 |
+
LMSDiscreteScheduler,
|
159 |
+
EulerDiscreteScheduler,
|
160 |
+
EulerAncestralDiscreteScheduler,
|
161 |
+
DPMSolverMultistepScheduler,
|
162 |
+
],
|
163 |
+
feature_extractor: Optional[CLIPImageProcessor] = None,
|
164 |
+
image_encoder: Optional[CLIPVisionModelWithProjection] = None,
|
165 |
+
):
|
166 |
+
super().__init__()
|
167 |
+
unet = UNetMotionModel.from_unet2d(unet, motion_adapter)
|
168 |
+
|
169 |
+
self.register_modules(
|
170 |
+
vae=vae,
|
171 |
+
text_encoder=text_encoder,
|
172 |
+
tokenizer=tokenizer,
|
173 |
+
unet=unet,
|
174 |
+
motion_adapter=motion_adapter,
|
175 |
+
controlnet=controlnet,
|
176 |
+
scheduler=scheduler,
|
177 |
+
feature_extractor=feature_extractor,
|
178 |
+
image_encoder=image_encoder,
|
179 |
+
)
|
180 |
+
self.vae_scale_factor = 2 ** (len(self.vae.config.block_out_channels) - 1)
|
181 |
+
self.image_processor = VaeImageProcessor(vae_scale_factor=self.vae_scale_factor)
|
182 |
+
self.control_image_processor = VaeImageProcessor(
|
183 |
+
vae_scale_factor=self.vae_scale_factor, do_convert_rgb=True, do_normalize=False
|
184 |
+
)
|
185 |
+
|
186 |
+
# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_prompt with num_images_per_prompt -> num_videos_per_prompt
|
187 |
+
def encode_prompt(
|
188 |
+
self,
|
189 |
+
prompt,
|
190 |
+
device,
|
191 |
+
num_images_per_prompt,
|
192 |
+
do_classifier_free_guidance,
|
193 |
+
negative_prompt=None,
|
194 |
+
prompt_embeds: Optional[torch.FloatTensor] = None,
|
195 |
+
negative_prompt_embeds: Optional[torch.FloatTensor] = None,
|
196 |
+
lora_scale: Optional[float] = None,
|
197 |
+
clip_skip: Optional[int] = None,
|
198 |
+
):
|
199 |
+
r"""
|
200 |
+
Encodes the prompt into text encoder hidden states.
|
201 |
+
|
202 |
+
Args:
|
203 |
+
prompt (`str` or `List[str]`, *optional*):
|
204 |
+
prompt to be encoded
|
205 |
+
device: (`torch.device`):
|
206 |
+
torch device
|
207 |
+
num_images_per_prompt (`int`):
|
208 |
+
number of images that should be generated per prompt
|
209 |
+
do_classifier_free_guidance (`bool`):
|
210 |
+
whether to use classifier free guidance or not
|
211 |
+
negative_prompt (`str` or `List[str]`, *optional*):
|
212 |
+
The prompt or prompts not to guide the image generation. If not defined, one has to pass
|
213 |
+
`negative_prompt_embeds` instead. Ignored when not using guidance (i.e., ignored if `guidance_scale` is
|
214 |
+
less than `1`).
|
215 |
+
prompt_embeds (`torch.FloatTensor`, *optional*):
|
216 |
+
Pre-generated text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt weighting. If not
|
217 |
+
provided, text embeddings will be generated from `prompt` input argument.
|
218 |
+
negative_prompt_embeds (`torch.FloatTensor`, *optional*):
|
219 |
+
Pre-generated negative text embeddings. Can be used to easily tweak text inputs, *e.g.* prompt
|
220 |
+
weighting. If not provided, negative_prompt_embeds will be generated from `negative_prompt` input
|
221 |
+
argument.
|
222 |
+
lora_scale (`float`, *optional*):
|
223 |
+
A LoRA scale that will be applied to all LoRA layers of the text encoder if LoRA layers are loaded.
|
224 |
+
clip_skip (`int`, *optional*):
|
225 |
+
Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that
|
226 |
+
the output of the pre-final layer will be used for computing the prompt embeddings.
|
227 |
+
"""
|
228 |
+
# set lora scale so that monkey patched LoRA
|
229 |
+
# function of text encoder can correctly access it
|
230 |
+
if lora_scale is not None and isinstance(self, LoraLoaderMixin):
|
231 |
+
self._lora_scale = lora_scale
|
232 |
+
|
233 |
+
# dynamically adjust the LoRA scale
|
234 |
+
if not USE_PEFT_BACKEND:
|
235 |
+
adjust_lora_scale_text_encoder(self.text_encoder, lora_scale)
|
236 |
+
else:
|
237 |
+
scale_lora_layers(self.text_encoder, lora_scale)
|
238 |
+
|
239 |
+
if prompt is not None and isinstance(prompt, str):
|
240 |
+
batch_size = 1
|
241 |
+
elif prompt is not None and isinstance(prompt, list):
|
242 |
+
batch_size = len(prompt)
|
243 |
+
else:
|
244 |
+
batch_size = prompt_embeds.shape[0]
|
245 |
+
|
246 |
+
if prompt_embeds is None:
|
247 |
+
# textual inversion: procecss multi-vector tokens if necessary
|
248 |
+
if isinstance(self, TextualInversionLoaderMixin):
|
249 |
+
prompt = self.maybe_convert_prompt(prompt, self.tokenizer)
|
250 |
+
|
251 |
+
text_inputs = self.tokenizer(
|
252 |
+
prompt,
|
253 |
+
padding="max_length",
|
254 |
+
max_length=self.tokenizer.model_max_length,
|
255 |
+
truncation=True,
|
256 |
+
return_tensors="pt",
|
257 |
+
)
|
258 |
+
text_input_ids = text_inputs.input_ids
|
259 |
+
untruncated_ids = self.tokenizer(prompt, padding="longest", return_tensors="pt").input_ids
|
260 |
+
|
261 |
+
if untruncated_ids.shape[-1] >= text_input_ids.shape[-1] and not torch.equal(
|
262 |
+
text_input_ids, untruncated_ids
|
263 |
+
):
|
264 |
+
removed_text = self.tokenizer.batch_decode(
|
265 |
+
untruncated_ids[:, self.tokenizer.model_max_length - 1 : -1]
|
266 |
+
)
|
267 |
+
logger.warning(
|
268 |
+
"The following part of your input was truncated because CLIP can only handle sequences up to"
|
269 |
+
f" {self.tokenizer.model_max_length} tokens: {removed_text}"
|
270 |
+
)
|
271 |
+
|
272 |
+
if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask:
|
273 |
+
attention_mask = text_inputs.attention_mask.to(device)
|
274 |
+
else:
|
275 |
+
attention_mask = None
|
276 |
+
|
277 |
+
if clip_skip is None:
|
278 |
+
prompt_embeds = self.text_encoder(text_input_ids.to(device), attention_mask=attention_mask)
|
279 |
+
prompt_embeds = prompt_embeds[0]
|
280 |
+
else:
|
281 |
+
prompt_embeds = self.text_encoder(
|
282 |
+
text_input_ids.to(device), attention_mask=attention_mask, output_hidden_states=True
|
283 |
+
)
|
284 |
+
# Access the `hidden_states` first, that contains a tuple of
|
285 |
+
# all the hidden states from the encoder layers. Then index into
|
286 |
+
# the tuple to access the hidden states from the desired layer.
|
287 |
+
prompt_embeds = prompt_embeds[-1][-(clip_skip + 1)]
|
288 |
+
# We also need to apply the final LayerNorm here to not mess with the
|
289 |
+
# representations. The `last_hidden_states` that we typically use for
|
290 |
+
# obtaining the final prompt representations passes through the LayerNorm
|
291 |
+
# layer.
|
292 |
+
prompt_embeds = self.text_encoder.text_model.final_layer_norm(prompt_embeds)
|
293 |
+
|
294 |
+
if self.text_encoder is not None:
|
295 |
+
prompt_embeds_dtype = self.text_encoder.dtype
|
296 |
+
elif self.unet is not None:
|
297 |
+
prompt_embeds_dtype = self.unet.dtype
|
298 |
+
else:
|
299 |
+
prompt_embeds_dtype = prompt_embeds.dtype
|
300 |
+
|
301 |
+
prompt_embeds = prompt_embeds.to(dtype=prompt_embeds_dtype, device=device)
|
302 |
+
|
303 |
+
bs_embed, seq_len, _ = prompt_embeds.shape
|
304 |
+
# duplicate text embeddings for each generation per prompt, using mps friendly method
|
305 |
+
prompt_embeds = prompt_embeds.repeat(1, num_images_per_prompt, 1)
|
306 |
+
prompt_embeds = prompt_embeds.view(bs_embed * num_images_per_prompt, seq_len, -1)
|
307 |
+
|
308 |
+
# get unconditional embeddings for classifier free guidance
|
309 |
+
if do_classifier_free_guidance and negative_prompt_embeds is None:
|
310 |
+
uncond_tokens: List[str]
|
311 |
+
if negative_prompt is None:
|
312 |
+
uncond_tokens = [""] * batch_size
|
313 |
+
elif prompt is not None and type(prompt) is not type(negative_prompt):
|
314 |
+
raise TypeError(
|
315 |
+
f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !="
|
316 |
+
f" {type(prompt)}."
|
317 |
+
)
|
318 |
+
elif isinstance(negative_prompt, str):
|
319 |
+
uncond_tokens = [negative_prompt]
|
320 |
+
elif batch_size != len(negative_prompt):
|
321 |
+
raise ValueError(
|
322 |
+
f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:"
|
323 |
+
f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches"
|
324 |
+
" the batch size of `prompt`."
|
325 |
+
)
|
326 |
+
else:
|
327 |
+
uncond_tokens = negative_prompt
|
328 |
+
|
329 |
+
# textual inversion: procecss multi-vector tokens if necessary
|
330 |
+
if isinstance(self, TextualInversionLoaderMixin):
|
331 |
+
uncond_tokens = self.maybe_convert_prompt(uncond_tokens, self.tokenizer)
|
332 |
+
|
333 |
+
max_length = prompt_embeds.shape[1]
|
334 |
+
uncond_input = self.tokenizer(
|
335 |
+
uncond_tokens,
|
336 |
+
padding="max_length",
|
337 |
+
max_length=max_length,
|
338 |
+
truncation=True,
|
339 |
+
return_tensors="pt",
|
340 |
+
)
|
341 |
+
|
342 |
+
if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask:
|
343 |
+
attention_mask = uncond_input.attention_mask.to(device)
|
344 |
+
else:
|
345 |
+
attention_mask = None
|
346 |
+
|
347 |
+
negative_prompt_embeds = self.text_encoder(
|
348 |
+
uncond_input.input_ids.to(device),
|
349 |
+
attention_mask=attention_mask,
|
350 |
+
)
|
351 |
+
negative_prompt_embeds = negative_prompt_embeds[0]
|
352 |
+
|
353 |
+
if do_classifier_free_guidance:
|
354 |
+
# duplicate unconditional embeddings for each generation per prompt, using mps friendly method
|
355 |
+
seq_len = negative_prompt_embeds.shape[1]
|
356 |
+
|
357 |
+
negative_prompt_embeds = negative_prompt_embeds.to(dtype=prompt_embeds_dtype, device=device)
|
358 |
+
|
359 |
+
negative_prompt_embeds = negative_prompt_embeds.repeat(1, num_images_per_prompt, 1)
|
360 |
+
negative_prompt_embeds = negative_prompt_embeds.view(batch_size * num_images_per_prompt, seq_len, -1)
|
361 |
+
|
362 |
+
if isinstance(self, LoraLoaderMixin) and USE_PEFT_BACKEND:
|
363 |
+
# Retrieve the original scale by scaling back the LoRA layers
|
364 |
+
unscale_lora_layers(self.text_encoder, lora_scale)
|
365 |
+
|
366 |
+
return prompt_embeds, negative_prompt_embeds
|
367 |
+
|
368 |
+
# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.encode_image
|
369 |
+
def encode_image(self, image, device, num_images_per_prompt):
|
370 |
+
dtype = next(self.image_encoder.parameters()).dtype
|
371 |
+
|
372 |
+
if not isinstance(image, torch.Tensor):
|
373 |
+
image = self.feature_extractor(image, return_tensors="pt").pixel_values
|
374 |
+
|
375 |
+
image = image.to(device=device, dtype=dtype)
|
376 |
+
image_embeds = self.image_encoder(image).image_embeds
|
377 |
+
image_embeds = image_embeds.repeat_interleave(num_images_per_prompt, dim=0)
|
378 |
+
|
379 |
+
uncond_image_embeds = torch.zeros_like(image_embeds)
|
380 |
+
return image_embeds, uncond_image_embeds
|
381 |
+
|
382 |
+
# Copied from diffusers.pipelines.text_to_video_synthesis/pipeline_text_to_video_synth.TextToVideoSDPipeline.decode_latents
|
383 |
+
def decode_latents(self, latents):
|
384 |
+
latents = 1 / self.vae.config.scaling_factor * latents
|
385 |
+
|
386 |
+
batch_size, channels, num_frames, height, width = latents.shape
|
387 |
+
latents = latents.permute(0, 2, 1, 3, 4).reshape(batch_size * num_frames, channels, height, width)
|
388 |
+
|
389 |
+
image = self.vae.decode(latents).sample
|
390 |
+
video = (
|
391 |
+
image[None, :]
|
392 |
+
.reshape(
|
393 |
+
(
|
394 |
+
batch_size,
|
395 |
+
num_frames,
|
396 |
+
-1,
|
397 |
+
)
|
398 |
+
+ image.shape[2:]
|
399 |
+
)
|
400 |
+
.permute(0, 2, 1, 3, 4)
|
401 |
+
)
|
402 |
+
# we always cast to float32 as this does not cause significant overhead and is compatible with bfloat16
|
403 |
+
video = video.float()
|
404 |
+
return video
|
405 |
+
|
406 |
+
# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.enable_vae_slicing
|
407 |
+
def enable_vae_slicing(self):
|
408 |
+
r"""
|
409 |
+
Enable sliced VAE decoding. When this option is enabled, the VAE will split the input tensor in slices to
|
410 |
+
compute decoding in several steps. This is useful to save some memory and allow larger batch sizes.
|
411 |
+
"""
|
412 |
+
self.vae.enable_slicing()
|
413 |
+
|
414 |
+
# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.disable_vae_slicing
|
415 |
+
def disable_vae_slicing(self):
|
416 |
+
r"""
|
417 |
+
Disable sliced VAE decoding. If `enable_vae_slicing` was previously enabled, this method will go back to
|
418 |
+
computing decoding in one step.
|
419 |
+
"""
|
420 |
+
self.vae.disable_slicing()
|
421 |
+
|
422 |
+
# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.enable_vae_tiling
|
423 |
+
def enable_vae_tiling(self):
|
424 |
+
r"""
|
425 |
+
Enable tiled VAE decoding. When this option is enabled, the VAE will split the input tensor into tiles to
|
426 |
+
compute decoding and encoding in several steps. This is useful for saving a large amount of memory and to allow
|
427 |
+
processing larger images.
|
428 |
+
"""
|
429 |
+
self.vae.enable_tiling()
|
430 |
+
|
431 |
+
# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.disable_vae_tiling
|
432 |
+
def disable_vae_tiling(self):
|
433 |
+
r"""
|
434 |
+
Disable tiled VAE decoding. If `enable_vae_tiling` was previously enabled, this method will go back to
|
435 |
+
computing decoding in one step.
|
436 |
+
"""
|
437 |
+
self.vae.disable_tiling()
|
438 |
+
|
439 |
+
# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.enable_freeu
|
440 |
+
def enable_freeu(self, s1: float, s2: float, b1: float, b2: float):
|
441 |
+
r"""Enables the FreeU mechanism as in https://arxiv.org/abs/2309.11497.
|
442 |
+
|
443 |
+
The suffixes after the scaling factors represent the stages where they are being applied.
|
444 |
+
|
445 |
+
Please refer to the [official repository](https://github.com/ChenyangSi/FreeU) for combinations of the values
|
446 |
+
that are known to work well for different pipelines such as Stable Diffusion v1, v2, and Stable Diffusion XL.
|
447 |
+
|
448 |
+
Args:
|
449 |
+
s1 (`float`):
|
450 |
+
Scaling factor for stage 1 to attenuate the contributions of the skip features. This is done to
|
451 |
+
mitigate "oversmoothing effect" in the enhanced denoising process.
|
452 |
+
s2 (`float`):
|
453 |
+
Scaling factor for stage 2 to attenuate the contributions of the skip features. This is done to
|
454 |
+
mitigate "oversmoothing effect" in the enhanced denoising process.
|
455 |
+
b1 (`float`): Scaling factor for stage 1 to amplify the contributions of backbone features.
|
456 |
+
b2 (`float`): Scaling factor for stage 2 to amplify the contributions of backbone features.
|
457 |
+
"""
|
458 |
+
if not hasattr(self, "unet"):
|
459 |
+
raise ValueError("The pipeline must have `unet` for using FreeU.")
|
460 |
+
self.unet.enable_freeu(s1=s1, s2=s2, b1=b1, b2=b2)
|
461 |
+
|
462 |
+
# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.disable_freeu
|
463 |
+
def disable_freeu(self):
|
464 |
+
"""Disables the FreeU mechanism if enabled."""
|
465 |
+
self.unet.disable_freeu()
|
466 |
+
|
467 |
+
# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.prepare_extra_step_kwargs
|
468 |
+
def prepare_extra_step_kwargs(self, generator, eta):
|
469 |
+
# prepare extra kwargs for the scheduler step, since not all schedulers have the same signature
|
470 |
+
# eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers.
|
471 |
+
# eta corresponds to η in DDIM paper: https://arxiv.org/abs/2010.02502
|
472 |
+
# and should be between [0, 1]
|
473 |
+
|
474 |
+
accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys())
|
475 |
+
extra_step_kwargs = {}
|
476 |
+
if accepts_eta:
|
477 |
+
extra_step_kwargs["eta"] = eta
|
478 |
+
|
479 |
+
# check if the scheduler accepts generator
|
480 |
+
accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys())
|
481 |
+
if accepts_generator:
|
482 |
+
extra_step_kwargs["generator"] = generator
|
483 |
+
return extra_step_kwargs
|
484 |
+
|
485 |
+
# Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.check_inputs
|
486 |
+
def check_inputs(
|
487 |
+
self,
|
488 |
+
prompt,
|
489 |
+
height,
|
490 |
+
width,
|
491 |
+
callback_steps,
|
492 |
+
negative_prompt=None,
|
493 |
+
prompt_embeds=None,
|
494 |
+
negative_prompt_embeds=None,
|
495 |
+
callback_on_step_end_tensor_inputs=None,
|
496 |
+
image=None,
|
497 |
+
controlnet_conditioning_scale=1.0,
|
498 |
+
control_guidance_start=0.0,
|
499 |
+
control_guidance_end=1.0,
|
500 |
+
):
|
501 |
+
if height % 8 != 0 or width % 8 != 0:
|
502 |
+
raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.")
|
503 |
+
|
504 |
+
if callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0):
|
505 |
+
raise ValueError(
|
506 |
+
f"`callback_steps` has to be a positive integer but is {callback_steps} of type"
|
507 |
+
f" {type(callback_steps)}."
|
508 |
+
)
|
509 |
+
if callback_on_step_end_tensor_inputs is not None and not all(
|
510 |
+
k in self._callback_tensor_inputs for k in callback_on_step_end_tensor_inputs
|
511 |
+
):
|
512 |
+
raise ValueError(
|
513 |
+
f"`callback_on_step_end_tensor_inputs` has to be in {self._callback_tensor_inputs}, but found {[k for k in callback_on_step_end_tensor_inputs if k not in self._callback_tensor_inputs]}"
|
514 |
+
)
|
515 |
+
|
516 |
+
if prompt is not None and prompt_embeds is not None:
|
517 |
+
raise ValueError(
|
518 |
+
f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to"
|
519 |
+
" only forward one of the two."
|
520 |
+
)
|
521 |
+
elif prompt is None and prompt_embeds is None:
|
522 |
+
raise ValueError(
|
523 |
+
"Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined."
|
524 |
+
)
|
525 |
+
elif prompt is not None and (not isinstance(prompt, str) and not isinstance(prompt, list)):
|
526 |
+
raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}")
|
527 |
+
|
528 |
+
if negative_prompt is not None and negative_prompt_embeds is not None:
|
529 |
+
raise ValueError(
|
530 |
+
f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:"
|
531 |
+
f" {negative_prompt_embeds}. Please make sure to only forward one of the two."
|
532 |
+
)
|
533 |
+
|
534 |
+
if prompt_embeds is not None and negative_prompt_embeds is not None:
|
535 |
+
if prompt_embeds.shape != negative_prompt_embeds.shape:
|
536 |
+
raise ValueError(
|
537 |
+
"`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but"
|
538 |
+
f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`"
|
539 |
+
f" {negative_prompt_embeds.shape}."
|
540 |
+
)
|
541 |
+
|
542 |
+
# `prompt` needs more sophisticated handling when there are multiple
|
543 |
+
# conditionings.
|
544 |
+
if isinstance(self.controlnet, MultiControlNetModel):
|
545 |
+
if isinstance(prompt, list):
|
546 |
+
logger.warning(
|
547 |
+
f"You have {len(self.controlnet.nets)} ControlNets and you have passed {len(prompt)}"
|
548 |
+
" prompts. The conditionings will be fixed across the prompts."
|
549 |
+
)
|
550 |
+
|
551 |
+
# Check `image`
|
552 |
+
is_compiled = hasattr(F, "scaled_dot_product_attention") and isinstance(
|
553 |
+
self.controlnet, torch._dynamo.eval_frame.OptimizedModule
|
554 |
+
)
|
555 |
+
if (
|
556 |
+
isinstance(self.controlnet, ControlNetModel)
|
557 |
+
or is_compiled
|
558 |
+
and isinstance(self.controlnet._orig_mod, ControlNetModel)
|
559 |
+
):
|
560 |
+
if isinstance(image, list):
|
561 |
+
for image_ in image:
|
562 |
+
self.check_image(image_, prompt, prompt_embeds)
|
563 |
+
else:
|
564 |
+
self.check_image(image, prompt, prompt_embeds)
|
565 |
+
elif (
|
566 |
+
isinstance(self.controlnet, MultiControlNetModel)
|
567 |
+
or is_compiled
|
568 |
+
and isinstance(self.controlnet._orig_mod, MultiControlNetModel)
|
569 |
+
):
|
570 |
+
if not isinstance(image, list):
|
571 |
+
raise TypeError("For multiple controlnets: `image` must be type `list`")
|
572 |
+
|
573 |
+
# When `image` is a nested list:
|
574 |
+
# (e.g. [[canny_image_1, pose_image_1], [canny_image_2, pose_image_2]])
|
575 |
+
elif any(isinstance(i, list) for i in image):
|
576 |
+
raise ValueError("A single batch of multiple conditionings are supported at the moment.")
|
577 |
+
elif len(image) != len(self.controlnet.nets):
|
578 |
+
raise ValueError(
|
579 |
+
f"For multiple controlnets: `image` must have the same length as the number of controlnets, but got {len(image)} images and {len(self.controlnet.nets)} ControlNets."
|
580 |
+
)
|
581 |
+
|
582 |
+
for control_ in image:
|
583 |
+
for image_ in control_:
|
584 |
+
self.check_image(image_, prompt, prompt_embeds)
|
585 |
+
else:
|
586 |
+
assert False
|
587 |
+
|
588 |
+
# Check `controlnet_conditioning_scale`
|
589 |
+
if (
|
590 |
+
isinstance(self.controlnet, ControlNetModel)
|
591 |
+
or is_compiled
|
592 |
+
and isinstance(self.controlnet._orig_mod, ControlNetModel)
|
593 |
+
):
|
594 |
+
if not isinstance(controlnet_conditioning_scale, float):
|
595 |
+
raise TypeError("For single controlnet: `controlnet_conditioning_scale` must be type `float`.")
|
596 |
+
elif (
|
597 |
+
isinstance(self.controlnet, MultiControlNetModel)
|
598 |
+
or is_compiled
|
599 |
+
and isinstance(self.controlnet._orig_mod, MultiControlNetModel)
|
600 |
+
):
|
601 |
+
if isinstance(controlnet_conditioning_scale, list):
|
602 |
+
if any(isinstance(i, list) for i in controlnet_conditioning_scale):
|
603 |
+
raise ValueError("A single batch of multiple conditionings are supported at the moment.")
|
604 |
+
elif isinstance(controlnet_conditioning_scale, list) and len(controlnet_conditioning_scale) != len(
|
605 |
+
self.controlnet.nets
|
606 |
+
):
|
607 |
+
raise ValueError(
|
608 |
+
"For multiple controlnets: When `controlnet_conditioning_scale` is specified as `list`, it must have"
|
609 |
+
" the same length as the number of controlnets"
|
610 |
+
)
|
611 |
+
else:
|
612 |
+
assert False
|
613 |
+
|
614 |
+
if not isinstance(control_guidance_start, (tuple, list)):
|
615 |
+
control_guidance_start = [control_guidance_start]
|
616 |
+
|
617 |
+
if not isinstance(control_guidance_end, (tuple, list)):
|
618 |
+
control_guidance_end = [control_guidance_end]
|
619 |
+
|
620 |
+
if len(control_guidance_start) != len(control_guidance_end):
|
621 |
+
raise ValueError(
|
622 |
+
f"`control_guidance_start` has {len(control_guidance_start)} elements, but `control_guidance_end` has {len(control_guidance_end)} elements. Make sure to provide the same number of elements to each list."
|
623 |
+
)
|
624 |
+
|
625 |
+
if isinstance(self.controlnet, MultiControlNetModel):
|
626 |
+
if len(control_guidance_start) != len(self.controlnet.nets):
|
627 |
+
raise ValueError(
|
628 |
+
f"`control_guidance_start`: {control_guidance_start} has {len(control_guidance_start)} elements but there are {len(self.controlnet.nets)} controlnets available. Make sure to provide {len(self.controlnet.nets)}."
|
629 |
+
)
|
630 |
+
|
631 |
+
for start, end in zip(control_guidance_start, control_guidance_end):
|
632 |
+
if start >= end:
|
633 |
+
raise ValueError(
|
634 |
+
f"control guidance start: {start} cannot be larger or equal to control guidance end: {end}."
|
635 |
+
)
|
636 |
+
if start < 0.0:
|
637 |
+
raise ValueError(f"control guidance start: {start} can't be smaller than 0.")
|
638 |
+
if end > 1.0:
|
639 |
+
raise ValueError(f"control guidance end: {end} can't be larger than 1.0.")
|
640 |
+
|
641 |
+
# Copied from diffusers.pipelines.controlnet.pipeline_controlnet.StableDiffusionControlNetPipeline.check_image
|
642 |
+
def check_image(self, image, prompt, prompt_embeds):
|
643 |
+
image_is_pil = isinstance(image, Image.Image)
|
644 |
+
image_is_tensor = isinstance(image, torch.Tensor)
|
645 |
+
image_is_np = isinstance(image, np.ndarray)
|
646 |
+
image_is_pil_list = isinstance(image, list) and isinstance(image[0], Image.Image)
|
647 |
+
image_is_tensor_list = isinstance(image, list) and isinstance(image[0], torch.Tensor)
|
648 |
+
image_is_np_list = isinstance(image, list) and isinstance(image[0], np.ndarray)
|
649 |
+
|
650 |
+
if (
|
651 |
+
not image_is_pil
|
652 |
+
and not image_is_tensor
|
653 |
+
and not image_is_np
|
654 |
+
and not image_is_pil_list
|
655 |
+
and not image_is_tensor_list
|
656 |
+
and not image_is_np_list
|
657 |
+
):
|
658 |
+
raise TypeError(
|
659 |
+
f"image must be passed and be one of PIL image, numpy array, torch tensor, list of PIL images, list of numpy arrays or list of torch tensors, but is {type(image)}"
|
660 |
+
)
|
661 |
+
|
662 |
+
if image_is_pil:
|
663 |
+
image_batch_size = 1
|
664 |
+
else:
|
665 |
+
image_batch_size = len(image)
|
666 |
+
|
667 |
+
if prompt is not None and isinstance(prompt, str):
|
668 |
+
prompt_batch_size = 1
|
669 |
+
elif prompt is not None and isinstance(prompt, list):
|
670 |
+
prompt_batch_size = len(prompt)
|
671 |
+
elif prompt_embeds is not None:
|
672 |
+
prompt_batch_size = prompt_embeds.shape[0]
|
673 |
+
|
674 |
+
if image_batch_size != 1 and image_batch_size != prompt_batch_size:
|
675 |
+
raise ValueError(
|
676 |
+
f"If image batch size is not 1, image batch size must be same as prompt batch size. image batch size: {image_batch_size}, prompt batch size: {prompt_batch_size}"
|
677 |
+
)
|
678 |
+
|
679 |
+
# Copied from diffusers.pipelines.text_to_video_synthesis.pipeline_text_to_video_synth.TextToVideoSDPipeline.prepare_latents
|
680 |
+
def prepare_latents(
|
681 |
+
self, batch_size, num_channels_latents, num_frames, height, width, dtype, device, generator, latents=None
|
682 |
+
):
|
683 |
+
shape = (
|
684 |
+
batch_size,
|
685 |
+
num_channels_latents,
|
686 |
+
num_frames,
|
687 |
+
height // self.vae_scale_factor,
|
688 |
+
width // self.vae_scale_factor,
|
689 |
+
)
|
690 |
+
if isinstance(generator, list) and len(generator) != batch_size:
|
691 |
+
raise ValueError(
|
692 |
+
f"You have passed a list of generators of length {len(generator)}, but requested an effective batch"
|
693 |
+
f" size of {batch_size}. Make sure the batch size matches the length of the generators."
|
694 |
+
)
|
695 |
+
|
696 |
+
if latents is None:
|
697 |
+
latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype)
|
698 |
+
else:
|
699 |
+
latents = latents.to(device)
|
700 |
+
|
701 |
+
# scale the initial noise by the standard deviation required by the scheduler
|
702 |
+
latents = latents * self.scheduler.init_noise_sigma
|
703 |
+
return latents
|
704 |
+
|
705 |
+
# Copied from diffusers.pipelines.controlnet.pipeline_controlnet.StableDiffusionControlNetPipeline.prepare_image
|
706 |
+
def prepare_image(
|
707 |
+
self,
|
708 |
+
image,
|
709 |
+
width,
|
710 |
+
height,
|
711 |
+
batch_size,
|
712 |
+
num_images_per_prompt,
|
713 |
+
device,
|
714 |
+
dtype,
|
715 |
+
do_classifier_free_guidance=False,
|
716 |
+
guess_mode=False,
|
717 |
+
):
|
718 |
+
image = self.control_image_processor.preprocess(image, height=height, width=width).to(dtype=torch.float32)
|
719 |
+
image_batch_size = image.shape[0]
|
720 |
+
|
721 |
+
if image_batch_size == 1:
|
722 |
+
repeat_by = batch_size
|
723 |
+
else:
|
724 |
+
# image batch size is the same as prompt batch size
|
725 |
+
repeat_by = num_images_per_prompt
|
726 |
+
|
727 |
+
image = image.repeat_interleave(repeat_by, dim=0)
|
728 |
+
|
729 |
+
image = image.to(device=device, dtype=dtype)
|
730 |
+
|
731 |
+
if do_classifier_free_guidance and not guess_mode:
|
732 |
+
image = torch.cat([image] * 2)
|
733 |
+
|
734 |
+
return image
|
735 |
+
|
736 |
+
@property
|
737 |
+
def guidance_scale(self):
|
738 |
+
return self._guidance_scale
|
739 |
+
|
740 |
+
@property
|
741 |
+
def clip_skip(self):
|
742 |
+
return self._clip_skip
|
743 |
+
|
744 |
+
# here `guidance_scale` is defined analog to the guidance weight `w` of equation (2)
|
745 |
+
# of the Imagen paper: https://arxiv.org/pdf/2205.11487.pdf . `guidance_scale = 1`
|
746 |
+
# corresponds to doing no classifier free guidance.
|
747 |
+
@property
|
748 |
+
def do_classifier_free_guidance(self):
|
749 |
+
return self._guidance_scale > 1
|
750 |
+
|
751 |
+
@property
|
752 |
+
def cross_attention_kwargs(self):
|
753 |
+
return self._cross_attention_kwargs
|
754 |
+
|
755 |
+
@property
|
756 |
+
def num_timesteps(self):
|
757 |
+
return self._num_timesteps
|
758 |
+
|
759 |
+
@torch.no_grad()
|
760 |
+
def __call__(
|
761 |
+
self,
|
762 |
+
prompt: Union[str, List[str]] = None,
|
763 |
+
num_frames: Optional[int] = 16,
|
764 |
+
height: Optional[int] = None,
|
765 |
+
width: Optional[int] = None,
|
766 |
+
num_inference_steps: int = 50,
|
767 |
+
guidance_scale: float = 7.5,
|
768 |
+
negative_prompt: Optional[Union[str, List[str]]] = None,
|
769 |
+
num_videos_per_prompt: Optional[int] = 1,
|
770 |
+
eta: float = 0.0,
|
771 |
+
generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None,
|
772 |
+
latents: Optional[torch.FloatTensor] = None,
|
773 |
+
prompt_embeds: Optional[torch.FloatTensor] = None,
|
774 |
+
negative_prompt_embeds: Optional[torch.FloatTensor] = None,
|
775 |
+
ip_adapter_image: Optional[PipelineImageInput] = None,
|
776 |
+
conditioning_frames: Optional[List[PipelineImageInput]] = None,
|
777 |
+
output_type: Optional[str] = "pil",
|
778 |
+
return_dict: bool = True,
|
779 |
+
cross_attention_kwargs: Optional[Dict[str, Any]] = None,
|
780 |
+
controlnet_conditioning_scale: Union[float, List[float]] = 1.0,
|
781 |
+
guess_mode: bool = False,
|
782 |
+
control_guidance_start: Union[float, List[float]] = 0.0,
|
783 |
+
control_guidance_end: Union[float, List[float]] = 1.0,
|
784 |
+
clip_skip: Optional[int] = None,
|
785 |
+
callback_on_step_end: Optional[Callable[[int, int, Dict], None]] = None,
|
786 |
+
callback_on_step_end_tensor_inputs: List[str] = ["latents"],
|
787 |
+
**kwargs,
|
788 |
+
):
|
789 |
+
r"""
|
790 |
+
The call function to the pipeline for generation.
|
791 |
+
|
792 |
+
Args:
|
793 |
+
prompt (`str` or `List[str]`, *optional*):
|
794 |
+
The prompt or prompts to guide image generation. If not defined, you need to pass `prompt_embeds`.
|
795 |
+
height (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`):
|
796 |
+
The height in pixels of the generated video.
|
797 |
+
width (`int`, *optional*, defaults to `self.unet.config.sample_size * self.vae_scale_factor`):
|
798 |
+
The width in pixels of the generated video.
|
799 |
+
num_frames (`int`, *optional*, defaults to 16):
|
800 |
+
The number of video frames that are generated. Defaults to 16 frames which at 8 frames per seconds
|
801 |
+
amounts to 2 seconds of video.
|
802 |
+
num_inference_steps (`int`, *optional*, defaults to 50):
|
803 |
+
The number of denoising steps. More denoising steps usually lead to a higher quality videos at the
|
804 |
+
expense of slower inference.
|
805 |
+
guidance_scale (`float`, *optional*, defaults to 7.5):
|
806 |
+
A higher guidance scale value encourages the model to generate images closely linked to the text
|
807 |
+
`prompt` at the expense of lower image quality. Guidance scale is enabled when `guidance_scale > 1`.
|
808 |
+
negative_prompt (`str` or `List[str]`, *optional*):
|
809 |
+
The prompt or prompts to guide what to not include in image generation. If not defined, you need to
|
810 |
+
pass `negative_prompt_embeds` instead. Ignored when not using guidance (`guidance_scale < 1`).
|
811 |
+
eta (`float`, *optional*, defaults to 0.0):
|
812 |
+
Corresponds to parameter eta (η) from the [DDIM](https://arxiv.org/abs/2010.02502) paper. Only applies
|
813 |
+
to the [`~schedulers.DDIMScheduler`], and is ignored in other schedulers.
|
814 |
+
generator (`torch.Generator` or `List[torch.Generator]`, *optional*):
|
815 |
+
A [`torch.Generator`](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make
|
816 |
+
generation deterministic.
|
817 |
+
latents (`torch.FloatTensor`, *optional*):
|
818 |
+
Pre-generated noisy latents sampled from a Gaussian distribution, to be used as inputs for video
|
819 |
+
generation. Can be used to tweak the same generation with different prompts. If not provided, a latents
|
820 |
+
tensor is generated by sampling using the supplied random `generator`. Latents should be of shape
|
821 |
+
`(batch_size, num_channel, num_frames, height, width)`.
|
822 |
+
prompt_embeds (`torch.FloatTensor`, *optional*):
|
823 |
+
Pre-generated text embeddings. Can be used to easily tweak text inputs (prompt weighting). If not
|
824 |
+
provided, text embeddings are generated from the `prompt` input argument.
|
825 |
+
negative_prompt_embeds (`torch.FloatTensor`, *optional*):
|
826 |
+
Pre-generated negative text embeddings. Can be used to easily tweak text inputs (prompt weighting). If
|
827 |
+
not provided, `negative_prompt_embeds` are generated from the `negative_prompt` input argument.
|
828 |
+
ip_adapter_image (`PipelineImageInput`, *optional*):
|
829 |
+
Optional image input to work with IP Adapters.
|
830 |
+
conditioning_frames (`List[PipelineImageInput]`, *optional*):
|
831 |
+
The ControlNet input condition to provide guidance to the `unet` for generation. If multiple ControlNets
|
832 |
+
are specified, images must be passed as a list such that each element of the list can be correctly
|
833 |
+
batched for input to a single ControlNet.
|
834 |
+
output_type (`str`, *optional*, defaults to `"pil"`):
|
835 |
+
The output format of the generated video. Choose between `torch.FloatTensor`, `PIL.Image` or
|
836 |
+
`np.array`.
|
837 |
+
return_dict (`bool`, *optional*, defaults to `True`):
|
838 |
+
Whether or not to return a [`~pipelines.text_to_video_synthesis.TextToVideoSDPipelineOutput`] instead
|
839 |
+
of a plain tuple.
|
840 |
+
cross_attention_kwargs (`dict`, *optional*):
|
841 |
+
A kwargs dictionary that if specified is passed along to the [`AttentionProcessor`] as defined in
|
842 |
+
[`self.processor`](https://github.com/huggingface/diffusers/blob/main/src/diffusers/models/attention_processor.py).
|
843 |
+
controlnet_conditioning_scale (`float` or `List[float]`, *optional*, defaults to 1.0):
|
844 |
+
The outputs of the ControlNet are multiplied by `controlnet_conditioning_scale` before they are added
|
845 |
+
to the residual in the original `unet`. If multiple ControlNets are specified in `init`, you can set
|
846 |
+
the corresponding scale as a list.
|
847 |
+
guess_mode (`bool`, *optional*, defaults to `False`):
|
848 |
+
The ControlNet encoder tries to recognize the content of the input image even if you remove all
|
849 |
+
prompts. A `guidance_scale` value between 3.0 and 5.0 is recommended.
|
850 |
+
control_guidance_start (`float` or `List[float]`, *optional*, defaults to 0.0):
|
851 |
+
The percentage of total steps at which the ControlNet starts applying.
|
852 |
+
control_guidance_end (`float` or `List[float]`, *optional*, defaults to 1.0):
|
853 |
+
The percentage of total steps at which the ControlNet stops applying.
|
854 |
+
clip_skip (`int`, *optional*):
|
855 |
+
Number of layers to be skipped from CLIP while computing the prompt embeddings. A value of 1 means that
|
856 |
+
the output of the pre-final layer will be used for computing the prompt embeddings.
|
857 |
+
allback_on_step_end (`Callable`, *optional*):
|
858 |
+
A function that calls at the end of each denoising steps during the inference. The function is called
|
859 |
+
with the following arguments: `callback_on_step_end(self: DiffusionPipeline, step: int, timestep: int,
|
860 |
+
callback_kwargs: Dict)`. `callback_kwargs` will include a list of all tensors as specified by
|
861 |
+
`callback_on_step_end_tensor_inputs`.
|
862 |
+
callback_on_step_end_tensor_inputs (`List`, *optional*):
|
863 |
+
The list of tensor inputs for the `callback_on_step_end` function. The tensors specified in the list
|
864 |
+
will be passed as `callback_kwargs` argument. You will only be able to include variables listed in the
|
865 |
+
`._callback_tensor_inputs` attribute of your pipeine class.
|
866 |
+
|
867 |
+
Examples:
|
868 |
+
|
869 |
+
Returns:
|
870 |
+
[`~pipelines.text_to_video_synthesis.TextToVideoSDPipelineOutput`] or `tuple`:
|
871 |
+
If `return_dict` is `True`, [`~pipelines.text_to_video_synthesis.TextToVideoSDPipelineOutput`] is
|
872 |
+
returned, otherwise a `tuple` is returned where the first element is a list with the generated frames.
|
873 |
+
"""
|
874 |
+
|
875 |
+
callback = kwargs.pop("callback", None)
|
876 |
+
callback_steps = kwargs.pop("callback_steps", None)
|
877 |
+
|
878 |
+
if callback is not None:
|
879 |
+
deprecate(
|
880 |
+
"callback",
|
881 |
+
"1.0.0",
|
882 |
+
"Passing `callback` as an input argument to `__call__` is deprecated, consider using `callback_on_step_end`",
|
883 |
+
)
|
884 |
+
if callback_steps is not None:
|
885 |
+
deprecate(
|
886 |
+
"callback_steps",
|
887 |
+
"1.0.0",
|
888 |
+
"Passing `callback_steps` as an input argument to `__call__` is deprecated, consider using `callback_on_step_end`",
|
889 |
+
)
|
890 |
+
|
891 |
+
controlnet = self.controlnet._orig_mod if is_compiled_module(self.controlnet) else self.controlnet
|
892 |
+
|
893 |
+
# align format for control guidance
|
894 |
+
if not isinstance(control_guidance_start, list) and isinstance(control_guidance_end, list):
|
895 |
+
control_guidance_start = len(control_guidance_end) * [control_guidance_start]
|
896 |
+
elif not isinstance(control_guidance_end, list) and isinstance(control_guidance_start, list):
|
897 |
+
control_guidance_end = len(control_guidance_start) * [control_guidance_end]
|
898 |
+
elif not isinstance(control_guidance_start, list) and not isinstance(control_guidance_end, list):
|
899 |
+
mult = len(controlnet.nets) if isinstance(controlnet, MultiControlNetModel) else 1
|
900 |
+
control_guidance_start, control_guidance_end = (
|
901 |
+
mult * [control_guidance_start],
|
902 |
+
mult * [control_guidance_end],
|
903 |
+
)
|
904 |
+
|
905 |
+
# 0. Default height and width to unet
|
906 |
+
height = height or self.unet.config.sample_size * self.vae_scale_factor
|
907 |
+
width = width or self.unet.config.sample_size * self.vae_scale_factor
|
908 |
+
|
909 |
+
num_videos_per_prompt = 1
|
910 |
+
|
911 |
+
# 1. Check inputs. Raise error if not correct
|
912 |
+
self.check_inputs(
|
913 |
+
prompt=prompt,
|
914 |
+
height=height,
|
915 |
+
width=width,
|
916 |
+
callback_steps=callback_steps,
|
917 |
+
negative_prompt=negative_prompt,
|
918 |
+
callback_on_step_end_tensor_inputs=callback_on_step_end_tensor_inputs,
|
919 |
+
prompt_embeds=prompt_embeds,
|
920 |
+
negative_prompt_embeds=negative_prompt_embeds,
|
921 |
+
image=conditioning_frames,
|
922 |
+
controlnet_conditioning_scale=controlnet_conditioning_scale,
|
923 |
+
control_guidance_start=control_guidance_start,
|
924 |
+
control_guidance_end=control_guidance_end,
|
925 |
+
)
|
926 |
+
|
927 |
+
self._guidance_scale = guidance_scale
|
928 |
+
self._clip_skip = clip_skip
|
929 |
+
self._cross_attention_kwargs = cross_attention_kwargs
|
930 |
+
|
931 |
+
# 2. Define call parameters
|
932 |
+
if prompt is not None and isinstance(prompt, str):
|
933 |
+
batch_size = 1
|
934 |
+
elif prompt is not None and isinstance(prompt, list):
|
935 |
+
batch_size = len(prompt)
|
936 |
+
else:
|
937 |
+
batch_size = prompt_embeds.shape[0]
|
938 |
+
|
939 |
+
device = self._execution_device
|
940 |
+
|
941 |
+
if isinstance(controlnet, MultiControlNetModel) and isinstance(controlnet_conditioning_scale, float):
|
942 |
+
controlnet_conditioning_scale = [controlnet_conditioning_scale] * len(controlnet.nets)
|
943 |
+
|
944 |
+
global_pool_conditions = (
|
945 |
+
controlnet.config.global_pool_conditions
|
946 |
+
if isinstance(controlnet, ControlNetModel)
|
947 |
+
else controlnet.nets[0].config.global_pool_conditions
|
948 |
+
)
|
949 |
+
guess_mode = guess_mode or global_pool_conditions
|
950 |
+
|
951 |
+
# 3. Encode input prompt
|
952 |
+
text_encoder_lora_scale = (
|
953 |
+
cross_attention_kwargs.get("scale", None) if cross_attention_kwargs is not None else None
|
954 |
+
)
|
955 |
+
prompt_embeds, negative_prompt_embeds = self.encode_prompt(
|
956 |
+
prompt,
|
957 |
+
device,
|
958 |
+
num_videos_per_prompt,
|
959 |
+
self.do_classifier_free_guidance,
|
960 |
+
negative_prompt,
|
961 |
+
prompt_embeds=prompt_embeds,
|
962 |
+
negative_prompt_embeds=negative_prompt_embeds,
|
963 |
+
lora_scale=text_encoder_lora_scale,
|
964 |
+
clip_skip=self.clip_skip,
|
965 |
+
)
|
966 |
+
# For classifier free guidance, we need to do two forward passes.
|
967 |
+
# Here we concatenate the unconditional and text embeddings into a single batch
|
968 |
+
# to avoid doing two forward passes
|
969 |
+
if self.do_classifier_free_guidance:
|
970 |
+
prompt_embeds = torch.cat([negative_prompt_embeds, prompt_embeds])
|
971 |
+
|
972 |
+
if ip_adapter_image is not None:
|
973 |
+
image_embeds, negative_image_embeds = self.encode_image(ip_adapter_image, device, num_videos_per_prompt)
|
974 |
+
if self.do_classifier_free_guidance:
|
975 |
+
image_embeds = torch.cat([negative_image_embeds, image_embeds])
|
976 |
+
|
977 |
+
if isinstance(controlnet, ControlNetModel):
|
978 |
+
conditioning_frames = self.prepare_image(
|
979 |
+
image=conditioning_frames,
|
980 |
+
width=width,
|
981 |
+
height=height,
|
982 |
+
batch_size=batch_size * num_videos_per_prompt * num_frames,
|
983 |
+
num_images_per_prompt=num_videos_per_prompt,
|
984 |
+
device=device,
|
985 |
+
dtype=controlnet.dtype,
|
986 |
+
do_classifier_free_guidance=self.do_classifier_free_guidance,
|
987 |
+
guess_mode=guess_mode,
|
988 |
+
)
|
989 |
+
elif isinstance(controlnet, MultiControlNetModel):
|
990 |
+
cond_prepared_frames = []
|
991 |
+
for frame_ in conditioning_frames:
|
992 |
+
prepared_frame = self.prepare_image(
|
993 |
+
image=frame_,
|
994 |
+
width=width,
|
995 |
+
height=height,
|
996 |
+
batch_size=batch_size * num_videos_per_prompt * num_frames,
|
997 |
+
num_images_per_prompt=num_videos_per_prompt,
|
998 |
+
device=device,
|
999 |
+
dtype=controlnet.dtype,
|
1000 |
+
do_classifier_free_guidance=self.do_classifier_free_guidance,
|
1001 |
+
guess_mode=guess_mode,
|
1002 |
+
)
|
1003 |
+
|
1004 |
+
cond_prepared_frames.append(prepared_frame)
|
1005 |
+
|
1006 |
+
conditioning_frames = cond_prepared_frames
|
1007 |
+
else:
|
1008 |
+
assert False
|
1009 |
+
|
1010 |
+
# 4. Prepare timesteps
|
1011 |
+
self.scheduler.set_timesteps(num_inference_steps, device=device)
|
1012 |
+
timesteps = self.scheduler.timesteps
|
1013 |
+
self._num_timesteps = len(timesteps)
|
1014 |
+
|
1015 |
+
# 5. Prepare latent variables
|
1016 |
+
num_channels_latents = self.unet.config.in_channels
|
1017 |
+
latents = self.prepare_latents(
|
1018 |
+
batch_size * num_videos_per_prompt,
|
1019 |
+
num_channels_latents,
|
1020 |
+
num_frames,
|
1021 |
+
height,
|
1022 |
+
width,
|
1023 |
+
prompt_embeds.dtype,
|
1024 |
+
device,
|
1025 |
+
generator,
|
1026 |
+
latents,
|
1027 |
+
)
|
1028 |
+
|
1029 |
+
# 6. Prepare extra step kwargs. TODO: Logic should ideally just be moved out of the pipeline
|
1030 |
+
extra_step_kwargs = self.prepare_extra_step_kwargs(generator, eta)
|
1031 |
+
|
1032 |
+
# 7. Add image embeds for IP-Adapter
|
1033 |
+
added_cond_kwargs = {"image_embeds": image_embeds} if ip_adapter_image is not None else None
|
1034 |
+
|
1035 |
+
# 7.1 Create tensor stating which controlnets to keep
|
1036 |
+
controlnet_keep = []
|
1037 |
+
for i in range(len(timesteps)):
|
1038 |
+
keeps = [
|
1039 |
+
1.0 - float(i / len(timesteps) < s or (i + 1) / len(timesteps) > e)
|
1040 |
+
for s, e in zip(control_guidance_start, control_guidance_end)
|
1041 |
+
]
|
1042 |
+
controlnet_keep.append(keeps[0] if isinstance(controlnet, ControlNetModel) else keeps)
|
1043 |
+
|
1044 |
+
print("############ START ANIMATEDIFF CONTZROLNET PIPELINE #############")
|
1045 |
+
# Denoising loop
|
1046 |
+
num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order
|
1047 |
+
with self.progress_bar(total=num_inference_steps) as progress_bar:
|
1048 |
+
for i, t in enumerate(timesteps):
|
1049 |
+
# expand the latents if we are doing classifier free guidance
|
1050 |
+
latent_model_input = torch.cat([latents] * 2) if self.do_classifier_free_guidance else latents
|
1051 |
+
latent_model_input = self.scheduler.scale_model_input(latent_model_input, t)
|
1052 |
+
|
1053 |
+
if guess_mode and self.do_classifier_free_guidance:
|
1054 |
+
# Infer ControlNet only for the conditional batch.
|
1055 |
+
control_model_input = latents
|
1056 |
+
control_model_input = self.scheduler.scale_model_input(control_model_input, t)
|
1057 |
+
controlnet_prompt_embeds = prompt_embeds.chunk(2)[1]
|
1058 |
+
else:
|
1059 |
+
control_model_input = latent_model_input
|
1060 |
+
controlnet_prompt_embeds = prompt_embeds
|
1061 |
+
controlnet_prompt_embeds = controlnet_prompt_embeds.repeat_interleave(num_frames, dim=0)
|
1062 |
+
|
1063 |
+
if isinstance(controlnet_keep[i], list):
|
1064 |
+
cond_scale = [c * s for c, s in zip(controlnet_conditioning_scale, controlnet_keep[i])]
|
1065 |
+
else:
|
1066 |
+
controlnet_cond_scale = controlnet_conditioning_scale
|
1067 |
+
if isinstance(controlnet_cond_scale, list):
|
1068 |
+
controlnet_cond_scale = controlnet_cond_scale[0]
|
1069 |
+
cond_scale = controlnet_cond_scale * controlnet_keep[i]
|
1070 |
+
|
1071 |
+
print("-----------------------")
|
1072 |
+
print("control_model_input.shape", control_model_input.shape)
|
1073 |
+
|
1074 |
+
control_model_input = torch.transpose(control_model_input, 1, 2)
|
1075 |
+
control_model_input = control_model_input.reshape(
|
1076 |
+
(-1, control_model_input.shape[2], control_model_input.shape[3], control_model_input.shape[4])
|
1077 |
+
)
|
1078 |
+
|
1079 |
+
print("control_model_input.shape", control_model_input.shape)
|
1080 |
+
|
1081 |
+
down_block_res_samples, mid_block_res_sample = self.controlnet(
|
1082 |
+
control_model_input,
|
1083 |
+
t,
|
1084 |
+
encoder_hidden_states=controlnet_prompt_embeds,
|
1085 |
+
controlnet_cond=conditioning_frames,
|
1086 |
+
conditioning_scale=cond_scale,
|
1087 |
+
guess_mode=guess_mode,
|
1088 |
+
return_dict=False,
|
1089 |
+
)
|
1090 |
+
|
1091 |
+
# predict the noise residual
|
1092 |
+
noise_pred = self.unet(
|
1093 |
+
latent_model_input,
|
1094 |
+
t,
|
1095 |
+
encoder_hidden_states=prompt_embeds,
|
1096 |
+
cross_attention_kwargs=self.cross_attention_kwargs,
|
1097 |
+
added_cond_kwargs=added_cond_kwargs,
|
1098 |
+
down_block_additional_residuals=down_block_res_samples,
|
1099 |
+
mid_block_additional_residual=mid_block_res_sample,
|
1100 |
+
).sample
|
1101 |
+
|
1102 |
+
# perform guidance
|
1103 |
+
if self.do_classifier_free_guidance:
|
1104 |
+
noise_pred_uncond, noise_pred_text = noise_pred.chunk(2)
|
1105 |
+
noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond)
|
1106 |
+
|
1107 |
+
# compute the previous noisy sample x_t -> x_t-1
|
1108 |
+
latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample
|
1109 |
+
|
1110 |
+
if callback_on_step_end is not None:
|
1111 |
+
callback_kwargs = {}
|
1112 |
+
for k in callback_on_step_end_tensor_inputs:
|
1113 |
+
callback_kwargs[k] = locals()[k]
|
1114 |
+
callback_outputs = callback_on_step_end(self, i, t, callback_kwargs)
|
1115 |
+
|
1116 |
+
latents = callback_outputs.pop("latents", latents)
|
1117 |
+
prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds)
|
1118 |
+
negative_prompt_embeds = callback_outputs.pop("negative_prompt_embeds", negative_prompt_embeds)
|
1119 |
+
|
1120 |
+
# call the callback, if provided
|
1121 |
+
if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0):
|
1122 |
+
progress_bar.update()
|
1123 |
+
if callback is not None and i % callback_steps == 0:
|
1124 |
+
callback(i, t, latents)
|
1125 |
+
|
1126 |
+
if output_type == "latent":
|
1127 |
+
return AnimateDiffControlNetPipelineOutput(frames=latents)
|
1128 |
+
|
1129 |
+
# Post-processing
|
1130 |
+
video_tensor = self.decode_latents(latents)
|
1131 |
+
|
1132 |
+
if output_type == "pt":
|
1133 |
+
video = video_tensor
|
1134 |
+
else:
|
1135 |
+
video = tensor2vid(video_tensor, self.image_processor, output_type=output_type)
|
1136 |
+
|
1137 |
+
# Offload all models
|
1138 |
+
self.maybe_free_model_hooks()
|
1139 |
+
|
1140 |
+
if not return_dict:
|
1141 |
+
return (video,)
|
1142 |
+
|
1143 |
+
return AnimateDiffControlNetPipelineOutput(frames=video)
|