2 Copyright (c) 2018-2019 Intel Corporation
4 Licensed under the Apache License, Version 2.0 (the "License");
5 you may not use this file except in compliance with the License.
6 You may obtain a copy of the License at
8 http://www.apache.org/licenses/LICENSE-2.0
10 Unless required by applicable law or agreed to in writing, software
11 distributed under the License is distributed on an "AS IS" BASIS,
12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 See the License for the specific language governing permissions and
14 limitations under the License.
21 from mo.front.kaldi.loader.utils import read_placeholder, read_binary_integer32_token, read_blob, read_token_value, find_next_tag
22 from mo.utils.error import Error
25 def read_binary_matrix(file_desc: io.BufferedReader, read_token: bool = True):
27 read_placeholder(file_desc)
28 rows_number = read_binary_integer32_token(file_desc)
29 cols_number = read_binary_integer32_token(file_desc)
30 # to compare: ((float *)a->buffer())[10]
31 return read_blob(file_desc, rows_number * cols_number), (rows_number, cols_number)
34 def read_binary_vector(file_desc: io.BufferedReader, read_token: bool = True, dtype=np.float32):
36 read_placeholder(file_desc)
37 elements_number = read_binary_integer32_token(file_desc)
38 return read_blob(file_desc, elements_number, dtype)
41 def read_learning_info(pb: io.BufferedReader):
43 read_placeholder(pb, 1)
44 first_char = pb.read(1)
45 pb.seek(-2, os.SEEK_CUR)
47 if first_char == b'L':
49 token = find_next_tag(pb)
51 if token in ['<LearnRateCoef>', '<LearningRate>']:
52 token = bytes(token, 'ascii')
54 log.debug('Unexpected tag: {}'.format(token))
56 elif first_char == b'B':
57 token = b'<BiasLearnRateCoef>'
58 elif first_char == b'M':
60 elif first_char == b'!': # token = b'<EndOfComponent>'
65 read_token_value(pb, token)