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cd458ae | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 | # Copyright 2026 The HuggingFace Team. All rights reserved.
#
# 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.
from ...loaders import HeliosLoraLoaderMixin
from ...utils import logging
from ..modular_pipeline import ModularPipeline
logger = logging.get_logger(__name__) # pylint: disable=invalid-name
class HeliosModularPipeline(
ModularPipeline,
HeliosLoraLoaderMixin,
):
"""
A ModularPipeline for Helios text-to-video generation.
> [!WARNING] > This is an experimental feature and is likely to change in the future.
"""
default_blocks_name = "HeliosAutoBlocks"
@property
def vae_scale_factor_spatial(self):
vae_scale_factor = 8
if hasattr(self, "vae") and self.vae is not None:
vae_scale_factor = self.vae.config.scale_factor_spatial
return vae_scale_factor
@property
def vae_scale_factor_temporal(self):
vae_scale_factor = 4
if hasattr(self, "vae") and self.vae is not None:
vae_scale_factor = self.vae.config.scale_factor_temporal
return vae_scale_factor
@property
def num_channels_latents(self):
# YiYi TODO: find out default value
num_channels_latents = 16
if hasattr(self, "transformer") and self.transformer is not None:
num_channels_latents = self.transformer.config.in_channels
return num_channels_latents
@property
def requires_unconditional_embeds(self):
requires_unconditional_embeds = False
if hasattr(self, "guider") and self.guider is not None:
requires_unconditional_embeds = self.guider._enabled and self.guider.num_conditions > 1
return requires_unconditional_embeds
class HeliosPyramidModularPipeline(HeliosModularPipeline):
"""
A ModularPipeline for Helios pyramid (progressive resolution) video generation.
> [!WARNING] > This is an experimental feature and is likely to change in the future.
"""
default_blocks_name = "HeliosPyramidAutoBlocks"
class HeliosPyramidDistilledModularPipeline(HeliosModularPipeline):
"""
A ModularPipeline for Helios distilled pyramid video generation using DMD scheduler.
Uses guidance_scale=1.0 (no CFG) and supports is_amplify_first_chunk for the DMD scheduler.
> [!WARNING] > This is an experimental feature and is likely to change in the future.
"""
default_blocks_name = "HeliosPyramidDistilledAutoBlocks"
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