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# coding=utf-8
# Copyright 2024 HuggingFace Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import unittest
import torch
from diffusers import AutoencoderKLLTXVideo
from diffusers.utils.testing_utils import (
enable_full_determinism,
floats_tensor,
torch_device,
)
from ..test_modeling_common import ModelTesterMixin, UNetTesterMixin
enable_full_determinism()
class AutoencoderKLLTXVideo090Tests(ModelTesterMixin, UNetTesterMixin, unittest.TestCase):
model_class = AutoencoderKLLTXVideo
main_input_name = "sample"
base_precision = 1e-2
def get_autoencoder_kl_ltx_video_config(self):
return {
"in_channels": 3,
"out_channels": 3,
"latent_channels": 8,
"block_out_channels": (8, 8, 8, 8),
"decoder_block_out_channels": (8, 8, 8, 8),
"layers_per_block": (1, 1, 1, 1, 1),
"decoder_layers_per_block": (1, 1, 1, 1, 1),
"spatio_temporal_scaling": (True, True, False, False),
"decoder_spatio_temporal_scaling": (True, True, False, False),
"decoder_inject_noise": (False, False, False, False, False),
"upsample_residual": (False, False, False, False),
"upsample_factor": (1, 1, 1, 1),
"timestep_conditioning": False,
"patch_size": 1,
"patch_size_t": 1,
"encoder_causal": True,
"decoder_causal": False,
}
@property
def dummy_input(self):
batch_size = 2
num_frames = 9
num_channels = 3
sizes = (16, 16)
image = floats_tensor((batch_size, num_channels, num_frames) + sizes).to(torch_device)
return {"sample": image}
@property
def input_shape(self):
return (3, 9, 16, 16)
@property
def output_shape(self):
return (3, 9, 16, 16)
def prepare_init_args_and_inputs_for_common(self):
init_dict = self.get_autoencoder_kl_ltx_video_config()
inputs_dict = self.dummy_input
return init_dict, inputs_dict
def test_gradient_checkpointing_is_applied(self):
expected_set = {
"LTXVideoEncoder3d",
"LTXVideoDecoder3d",
"LTXVideoDownBlock3D",
"LTXVideoMidBlock3d",
"LTXVideoUpBlock3d",
}
super().test_gradient_checkpointing_is_applied(expected_set=expected_set)
@unittest.skip("Unsupported test.")
def test_outputs_equivalence(self):
pass
@unittest.skip("AutoencoderKLLTXVideo does not support `norm_num_groups` because it does not use GroupNorm.")
def test_forward_with_norm_groups(self):
pass
class AutoencoderKLLTXVideo091Tests(ModelTesterMixin, UNetTesterMixin, unittest.TestCase):
model_class = AutoencoderKLLTXVideo
main_input_name = "sample"
base_precision = 1e-2
def get_autoencoder_kl_ltx_video_config(self):
return {
"in_channels": 3,
"out_channels": 3,
"latent_channels": 8,
"block_out_channels": (8, 8, 8, 8),
"decoder_block_out_channels": (16, 32, 64),
"layers_per_block": (1, 1, 1, 1),
"decoder_layers_per_block": (1, 1, 1, 1),
"spatio_temporal_scaling": (True, True, True, False),
"decoder_spatio_temporal_scaling": (True, True, True),
"decoder_inject_noise": (True, True, True, False),
"upsample_residual": (True, True, True),
"upsample_factor": (2, 2, 2),
"timestep_conditioning": True,
"patch_size": 1,
"patch_size_t": 1,
"encoder_causal": True,
"decoder_causal": False,
}
@property
def dummy_input(self):
batch_size = 2
num_frames = 9
num_channels = 3
sizes = (16, 16)
image = floats_tensor((batch_size, num_channels, num_frames) + sizes).to(torch_device)
timestep = torch.tensor([0.05] * batch_size, device=torch_device)
return {"sample": image, "temb": timestep}
@property
def input_shape(self):
return (3, 9, 16, 16)
@property
def output_shape(self):
return (3, 9, 16, 16)
def prepare_init_args_and_inputs_for_common(self):
init_dict = self.get_autoencoder_kl_ltx_video_config()
inputs_dict = self.dummy_input
return init_dict, inputs_dict
def test_gradient_checkpointing_is_applied(self):
expected_set = {
"LTXVideoEncoder3d",
"LTXVideoDecoder3d",
"LTXVideoDownBlock3D",
"LTXVideoMidBlock3d",
"LTXVideoUpBlock3d",
}
super().test_gradient_checkpointing_is_applied(expected_set=expected_set)
@unittest.skip("Unsupported test.")
def test_outputs_equivalence(self):
pass
@unittest.skip("AutoencoderKLLTXVideo does not support `norm_num_groups` because it does not use GroupNorm.")
def test_forward_with_norm_groups(self):
pass
def test_enable_disable_tiling(self):
init_dict, inputs_dict = self.prepare_init_args_and_inputs_for_common()
torch.manual_seed(0)
model = self.model_class(**init_dict).to(torch_device)
inputs_dict.update({"return_dict": False})
torch.manual_seed(0)
output_without_tiling = model(**inputs_dict, generator=torch.manual_seed(0))[0]
torch.manual_seed(0)
model.enable_tiling()
output_with_tiling = model(**inputs_dict, generator=torch.manual_seed(0))[0]
self.assertLess(
(output_without_tiling.detach().cpu().numpy() - output_with_tiling.detach().cpu().numpy()).max(),
0.5,
"VAE tiling should not affect the inference results",
)
torch.manual_seed(0)
model.disable_tiling()
output_without_tiling_2 = model(**inputs_dict, generator=torch.manual_seed(0))[0]
self.assertEqual(
output_without_tiling.detach().cpu().numpy().all(),
output_without_tiling_2.detach().cpu().numpy().all(),
"Without tiling outputs should match with the outputs when tiling is manually disabled.",
)
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