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| # -*- coding: utf-8 -*- | |
| # Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. (MPG) is | |
| # holder of all proprietary rights on this computer program. | |
| # You can only use this computer program if you have closed | |
| # a license agreement with MPG or you get the right to use the computer | |
| # program from someone who is authorized to grant you that right. | |
| # Any use of the computer program without a valid license is prohibited and | |
| # liable to prosecution. | |
| # | |
| # Copyright©2020 Max-Planck-Gesellschaft zur Förderung | |
| # der Wissenschaften e.V. (MPG). acting on behalf of its Max Planck Institute | |
| # for Intelligent Systems. All rights reserved. | |
| # | |
| # Contact: ps-license@tuebingen.mpg.de | |
| from typing import Optional | |
| from torch import Tensor | |
| from .base import Datastruct, dataclass, Transform | |
| from ..tools import collate_tensor_with_padding | |
| from .joints2jfeats import Joints2Jfeats | |
| class XYZTransform(Transform): | |
| def __init__(self, joints2jfeats: Joints2Jfeats, **kwargs): | |
| self.joints2jfeats = joints2jfeats | |
| def Datastruct(self, **kwargs): | |
| return XYZDatastruct(_joints2jfeats=self.joints2jfeats, | |
| transforms=self, | |
| **kwargs) | |
| def __repr__(self): | |
| return "XYZTransform()" | |
| class XYZDatastruct(Datastruct): | |
| transforms: XYZTransform | |
| _joints2jfeats: Joints2Jfeats | |
| features: Optional[Tensor] = None | |
| joints_: Optional[Tensor] = None | |
| jfeats_: Optional[Tensor] = None | |
| def __post_init__(self): | |
| self.datakeys = ["features", "joints_", "jfeats_"] | |
| # starting point | |
| if self.features is not None and self.jfeats_ is None: | |
| self.jfeats_ = self.features | |
| def joints(self): | |
| # Cached value | |
| if self.joints_ is not None: | |
| return self.joints_ | |
| # self.jfeats_ should be defined | |
| assert self.jfeats_ is not None | |
| self._joints2jfeats.to(self.jfeats.device) | |
| self.joints_ = self._joints2jfeats.inverse(self.jfeats) | |
| return self.joints_ | |
| def jfeats(self): | |
| # Cached value | |
| if self.jfeats_ is not None: | |
| return self.jfeats_ | |
| # self.joints_ should be defined | |
| assert self.joints_ is not None | |
| self._joints2jfeats.to(self.joints.device) | |
| self.jfeats_ = self._joints2jfeats(self.joints) | |
| return self.jfeats_ | |
| def __len__(self): | |
| return len(self.jfeats) | |