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from typing import Union, List
import logging
import h5py
import numpy as np
from .emb import MediaMapEmb
logger = logging.getLogger(__name__) # pylint: disable=invalid-name
__all__ = ["H5pyMediaMapEmb", "save_value_with_h5py"]
def save_value_with_h5py(
path: str,
value: Union[np.ndarray, None],
key: str,
idx: Union[int, List[int]] = None,
dtype=None,
shape=None,
overwrite: bool = False,
):
with h5py.File(path, "a") as f:
if dtype is None:
dtype = value.dtype
if shape is None:
shape = value.shape
del_key = False
if key in f:
if overwrite:
del_key = True
if f[key].dtype != h5py.special_dtype(vlen=str):
if f[key].shape != value.shape:
del_key = True
if del_key:
del f[key]
if key not in f:
f.create_dataset(key, shape=shape, dtype=dtype)
if idx is None:
f[key][...] = value
else:
f[key][idx] = value
class H5pyMediaMapEmb(MediaMapEmb):
def __init__(self, path: str) -> None:
"""
OfflineEmb = {
"overall_algo": Emb, # 整个文件的Emb
# 整个文件的多维度 Emb
"theme": np.array, # 主题，
"emotion_algo": np.array, # 情绪，
"semantic_algo": np.array, # 语义
"clips_overall_algo": np.array, n_clip x clip_emb
"clips_emotion_algo": np.array, n_clip x clip_emb
"clips_semantic_algo": np.array, n_clip x clip_emb
"clips_theme_algo": np.array, n_clip x clip_emb
"scenes_overall_algo": np.array, n_scenes x scene_emb
"scenes_emotion_algo": np.array, n_scenes x scene_emb
"scenes_semantic_algo": np.array, n_scenes x scene_emb
"scenes_theme_algo": E np.arraymb, n_scenes x scene_emb
# 片段可以是转场切分、MusicStage等, clips目前属于转场切分片段
# 若后续需要新增段落分割，可以和clips同级新增 stage字段。
"frames_overall_algo": np.array, n_frames x frame_emb
"frames_emotion_algo": np.array, n_frames x frame_emb
"frames_semantic_algo": np.array, n_frames x frame_emb
"frames_theme_algo": np.array, n_frames x frame_emb
"frames_objs_algo": {
"frame_id_algo": { #
"overall_algo": np.array, n_objs x obj_emb
"emotion_algo": np.array, n_objs x obj_emb
"semantic_algo": np.array, n_objs x obj_emb
"theme_algo": np.array, n_objs x obj_emb
}
}
"roles_algo": {
"roleid": np.array, n x obj_emb
}
}
Args:
path (str): hdf5 存储路径
"""
super().__init__(path)
# 待优化支持 with open 的方式来读写
self.f = h5py.File(path, "a")
def _keys_index(self, key):
if not isinstance(key, list):
key = [key]
key = "/".join([str(x) for x in key if x is not None])
return key
def get_value(self, key, idx=None):
new_key = self._keys_index(key)
if idx is None:
data = np.array(self.f[new_key])
else:
data = np.array(self.f[new_key][idx])
return data
def set_value(self, key, value, idx=None):
new_key = self._keys_index(key)
if new_key not in self.f:
self.f.create_dataset(new_key, shape=value.shape, dtype=value.dtype)
if idx is None:
self.f[new_key][...] = value
else:
self.f[new_key][idx] = value
def close(self):
self.f.close()
class H5pyMediaMapEmbProxy(H5pyMediaMapEmb):
pass
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