

from __future__ import annotations

from collections.abc import Iterator
from typing import Generic, TypeVar

__UpperCAmelCase    				=     TypeVar('T')





class A__    ( Generic[T] ):



 """simple docstring"""







 def __init__(		self :	Union[str, Any]     ,						A_ :	T       ):






      '''simple docstring'''




      _lowerCAmelCase   :					List[Any]        =    data
      _lowerCAmelCase   :					Node[T] | None        =    None


 def __str__(		self :	Any       ):






      '''simple docstring'''




      return F'''{self.data}'''





class A__    ( Generic[T] ):



 """simple docstring"""







 def __init__(		self :	List[Any]       ):






      '''simple docstring'''




      _lowerCAmelCase   :					Node[T] | None        =    None

 def __iter__(		self :	Optional[int]       ):






      '''simple docstring'''




      _lowerCAmelCase   :					Any        =    self.top
      while node:
           yield node.data
           _lowerCAmelCase   :					Union[str, Any]        =    node.next

 def __str__(		self :	int       ):






      '''simple docstring'''




      return "->".join([str(A_       ) for item in self]       )

 def __len__(		self :	str       ):






      '''simple docstring'''




      return len(tuple(iter(self       )       )       )

 def    __magic_name__       (		self :	Union[str, Any]       ):






      '''simple docstring'''




      return self.top is None

 def    __magic_name__       (		self :	Optional[int]     ,						A_ :	T       ):






      '''simple docstring'''




      _lowerCAmelCase   :					Any        =    Node(A_       )
      if not self.is_empty():
           _lowerCAmelCase   :					str        =    self.top
      _lowerCAmelCase   :					Optional[Any]        =    node

 def    __magic_name__       (		self :	str       ):






      '''simple docstring'''




      if self.is_empty():
           raise IndexError("pop from empty stack"       )
      assert isinstance(self.top     ,						A_       )
      _lowerCAmelCase   :					Optional[int]        =    self.top
      _lowerCAmelCase   :					Optional[Any]        =    self.top.next
      return pop_node.data

 def    __magic_name__       (		self :	List[Any]       ):






      '''simple docstring'''




      if self.is_empty():
           raise IndexError("peek from empty stack"       )

      assert self.top is not None
      return self.top.data


 def    __magic_name__       (		self :	Union[str, Any]       ):






      '''simple docstring'''




      _lowerCAmelCase   :					Tuple        =    None


if __name__ == "__main__":
  from doctest import testmod

  testmod()









import unittest

import numpy as np
import torch
from transformers import CLIPTextConfig, CLIPTextModel, CLIPTokenizer

from diffusers import (
    AutoencoderKL,
    DDIMScheduler,
    DPMSolverMultistepScheduler,
    TextToVideoSDPipeline,
    UNetaDConditionModel,
)
from diffusers.utils import is_xformers_available, load_numpy, skip_mps, slow, torch_device
from diffusers.utils.testing_utils import enable_full_determinism

from ..pipeline_params import TEXT_TO_IMAGE_BATCH_PARAMS, TEXT_TO_IMAGE_PARAMS
from ..test_pipelines_common import PipelineTesterMixin


enable_full_determinism()





@skip_mps
class A__    ( A  ,		unittest.TestCase ):



 """simple docstring"""







 _lowercase     :					str      =						TextToVideoSDPipeline
 _lowercase     :					str      =						TEXT_TO_IMAGE_PARAMS
 _lowercase     :					Dict      =						TEXT_TO_IMAGE_BATCH_PARAMS
 # No `output_type`.
 _lowercase     :					Union[str, Any]      =						frozenset(
     [
         '''num_inference_steps''',
         '''generator''',
         '''latents''',
         '''return_dict''',
         '''callback''',
         '''callback_steps''',
     ] )

 def    __magic_name__       (		self :	Any       ):






      '''simple docstring'''




      torch.manual_seed(0       )
      _lowerCAmelCase   :					Union[str, Any]        =    UNetaDConditionModel(
          block_out_channels=(3_2, 6_4, 6_4, 6_4)     ,						layers_per_block=2     ,						sample_size=3_2     ,						in_channels=4     ,						out_channels=4     ,						down_block_types=("CrossAttnDownBlock3D", "CrossAttnDownBlock3D", "CrossAttnDownBlock3D", "DownBlock3D")     ,						up_block_types=("UpBlock3D", "CrossAttnUpBlock3D", "CrossAttnUpBlock3D", "CrossAttnUpBlock3D")     ,						cross_attention_dim=3_2     ,						attention_head_dim=4     ,						)
      _lowerCAmelCase   :					Any        =    DDIMScheduler(
          beta_start=0.00085     ,						beta_end=0.012     ,						beta_schedule="scaled_linear"     ,						clip_sample=A_     ,						set_alpha_to_one=A_     ,						)
      torch.manual_seed(0       )
      _lowerCAmelCase   :					Dict        =    AutoencoderKL(
          block_out_channels=[3_2, 6_4]     ,						in_channels=3     ,						out_channels=3     ,						down_block_types=["DownEncoderBlock2D", "DownEncoderBlock2D"]     ,						up_block_types=["UpDecoderBlock2D", "UpDecoderBlock2D"]     ,						latent_channels=4     ,						sample_size=1_2_8     ,						)
      torch.manual_seed(0       )
      _lowerCAmelCase   :					Union[str, Any]        =    CLIPTextConfig(
          bos_token_id=0     ,						eos_token_id=2     ,						hidden_size=3_2     ,						intermediate_size=3_7     ,						layer_norm_eps=1E-05     ,						num_attention_heads=4     ,						num_hidden_layers=5     ,						pad_token_id=1     ,						vocab_size=1_0_0_0     ,						hidden_act="gelu"     ,						projection_dim=5_1_2     ,						)
      _lowerCAmelCase   :					Any        =    CLIPTextModel(A_       )
      _lowerCAmelCase   :					Union[str, Any]        =    CLIPTokenizer.from_pretrained("hf-internal-testing/tiny-random-clip"       )

      _lowerCAmelCase   :					Dict        =    {
          "unet": unet,
          "scheduler": scheduler,
          "vae": vae,
          "text_encoder": text_encoder,
          "tokenizer": tokenizer,
      }
      return components

 def    __magic_name__       (		self :	str     ,						A_ :	Union[str, Any]     ,						A_ :	List[str]=0       ):






      '''simple docstring'''




      if str(A_       ).startswith("mps"       ):
           _lowerCAmelCase   :					Any        =    torch.manual_seed(A_       )
      else:
           _lowerCAmelCase   :					Optional[int]        =    torch.Generator(device=A_       ).manual_seed(A_       )
      _lowerCAmelCase   :					List[str]        =    {
          "prompt": "A painting of a squirrel eating a burger",
          "generator": generator,
          "num_inference_steps": 2,
          "guidance_scale": 6.0,
          "output_type": "pt",
      }
      return inputs

 def    __magic_name__       (		self :	List[str]       ):






      '''simple docstring'''




      _lowerCAmelCase   :					Tuple        =    "cpu"  # ensure determinism for the device-dependent torch.Generator
      _lowerCAmelCase   :					Dict        =    self.get_dummy_components()
      _lowerCAmelCase   :					int        =    TextToVideoSDPipeline(**A_       )
      _lowerCAmelCase   :					Dict        =    sd_pipe.to(A_       )
      sd_pipe.set_progress_bar_config(disable=A_       )

      _lowerCAmelCase   :					Optional[Any]        =    self.get_dummy_inputs(A_       )
      _lowerCAmelCase   :					Any        =    "np"
      _lowerCAmelCase   :					List[str]        =    sd_pipe(**A_       ).frames
      _lowerCAmelCase   :					Optional[int]        =    frames[0][-3:, -3:, -1]

      assert frames[0].shape == (6_4, 6_4, 3)
      _lowerCAmelCase   :					str        =    np.array([158.0, 160.0, 153.0, 125.0, 100.0, 121.0, 111.0, 93.0, 113.0]       )

      assert np.abs(image_slice.flatten() - expected_slice       ).max() < 1E-2

 def    __magic_name__       (		self :	List[Any]       ):






      '''simple docstring'''




      self._test_attention_slicing_forward_pass(test_mean_pixel_difference=A_     ,						expected_max_diff=3E-3       )

 @unittest.skipIf(
     torch_device != "cuda" or not is_xformers_available()     ,						reason="XFormers attention is only available with CUDA and `xformers` installed"     ,						)
 def    __magic_name__       (		self :	Tuple       ):






      '''simple docstring'''




      self._test_xformers_attention_forwardGenerator_pass(test_mean_pixel_difference=A_     ,						expected_max_diff=1E-2       )

 @unittest.skip(reason="Batching needs to be properly figured out first for this pipeline."       )
 def    __magic_name__       (		self :	List[str]       ):






      '''simple docstring'''




      pass

 @unittest.skip(reason="Batching needs to be properly figured out first for this pipeline."       )
 def    __magic_name__       (		self :	int       ):






      '''simple docstring'''




      pass

 @unittest.skip(reason="`num_images_per_prompt` argument is not supported for this pipeline."       )
 def    __magic_name__       (		self :	str       ):






      '''simple docstring'''




      pass


 def    __magic_name__       (		self :	Optional[Any]       ):






      '''simple docstring'''




      return super().test_progress_bar()





@slow
@skip_mps
class A__    ( unittest.TestCase ):



 """simple docstring"""







 def    __magic_name__       (		self :	Tuple       ):






      '''simple docstring'''




      _lowerCAmelCase   :					Optional[Any]        =    load_numpy(
          "https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main/text_to_video/video.npy"       )

      _lowerCAmelCase   :					Dict        =    TextToVideoSDPipeline.from_pretrained("damo-vilab/text-to-video-ms-1.7b"       )
      _lowerCAmelCase   :					Optional[Any]        =    DPMSolverMultistepScheduler.from_config(pipe.scheduler.config       )
      _lowerCAmelCase   :					Optional[Any]        =    pipe.to("cuda"       )

      _lowerCAmelCase   :					Union[str, Any]        =    "Spiderman is surfing"
      _lowerCAmelCase   :					Any        =    torch.Generator(device="cpu"       ).manual_seed(0       )

      _lowerCAmelCase   :					Union[str, Any]        =    pipe(A_     ,						generator=A_     ,						num_inference_steps=2_5     ,						output_type="pt"       ).frames
      _lowerCAmelCase   :					Optional[Any]        =    video_frames.cpu().numpy()

      assert np.abs(expected_video - video       ).mean() < 5E-2


 def    __magic_name__       (		self :	Union[str, Any]       ):






      '''simple docstring'''




      _lowerCAmelCase   :					Dict        =    load_numpy(
          "https://huggingface.co/datasets/hf-internal-testing/diffusers-images/resolve/main/text_to_video/video_2step.npy"       )

      _lowerCAmelCase   :					Optional[Any]        =    TextToVideoSDPipeline.from_pretrained("damo-vilab/text-to-video-ms-1.7b"       )
      _lowerCAmelCase   :					Optional[int]        =    pipe.to("cuda"       )

      _lowerCAmelCase   :					List[Any]        =    "Spiderman is surfing"
      _lowerCAmelCase   :					List[str]        =    torch.Generator(device="cpu"       ).manual_seed(0       )

      _lowerCAmelCase   :					List[Any]        =    pipe(A_     ,						generator=A_     ,						num_inference_steps=2     ,						output_type="pt"       ).frames
      _lowerCAmelCase   :					str        =    video_frames.cpu().numpy()

      assert np.abs(expected_video - video       ).mean() < 5E-2






