chore: import upstream snapshot with attribution

This commit is contained in:
wehub-resource-sync
2026-07-13 13:25:10 +08:00
commit c397331b1e
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import os
import numpy as np
import sys
def compute_wer(ref_file, hyp_file, cer_detail_file):
rst = {
"Wrd": 0,
"Corr": 0,
"Ins": 0,
"Del": 0,
"Sub": 0,
"Snt": 0,
"Err": 0.0,
"S.Err": 0.0,
"wrong_words": 0,
"wrong_sentences": 0,
}
hyp_dict = {}
ref_dict = {}
with open(hyp_file, "r") as hyp_reader:
for line in hyp_reader:
key = line.strip().split()[0]
value = line.strip().split()[1:]
hyp_dict[key] = value
with open(ref_file, "r") as ref_reader:
for line in ref_reader:
key = line.strip().split()[0]
value = line.strip().split()[1:]
ref_dict[key] = value
cer_detail_writer = open(cer_detail_file, "w")
for hyp_key in hyp_dict:
if hyp_key in ref_dict:
out_item = compute_wer_by_line(hyp_dict[hyp_key], ref_dict[hyp_key])
rst["Wrd"] += out_item["nwords"]
rst["Corr"] += out_item["cor"]
rst["wrong_words"] += out_item["wrong"]
rst["Ins"] += out_item["ins"]
rst["Del"] += out_item["del"]
rst["Sub"] += out_item["sub"]
rst["Snt"] += 1
if out_item["wrong"] > 0:
rst["wrong_sentences"] += 1
cer_detail_writer.write(hyp_key + print_cer_detail(out_item) + "\n")
cer_detail_writer.write("ref:" + "\t" + "".join(ref_dict[hyp_key]) + "\n")
cer_detail_writer.write("hyp:" + "\t" + "".join(hyp_dict[hyp_key]) + "\n")
if rst["Wrd"] > 0:
rst["Err"] = round(rst["wrong_words"] * 100 / rst["Wrd"], 2)
if rst["Snt"] > 0:
rst["S.Err"] = round(rst["wrong_sentences"] * 100 / rst["Snt"], 2)
cer_detail_writer.write("\n")
cer_detail_writer.write(
"%WER "
+ str(rst["Err"])
+ " [ "
+ str(rst["wrong_words"])
+ " / "
+ str(rst["Wrd"])
+ ", "
+ str(rst["Ins"])
+ " ins, "
+ str(rst["Del"])
+ " del, "
+ str(rst["Sub"])
+ " sub ]"
+ "\n"
)
cer_detail_writer.write(
"%SER "
+ str(rst["S.Err"])
+ " [ "
+ str(rst["wrong_sentences"])
+ " / "
+ str(rst["Snt"])
+ " ]"
+ "\n"
)
cer_detail_writer.write(
"Scored "
+ str(len(hyp_dict))
+ " sentences, "
+ str(len(hyp_dict) - rst["Snt"])
+ " not present in hyp."
+ "\n"
)
def compute_wer_by_line(hyp, ref):
hyp = list(map(lambda x: x.lower(), hyp))
ref = list(map(lambda x: x.lower(), ref))
len_hyp = len(hyp)
len_ref = len(ref)
cost_matrix = np.zeros((len_hyp + 1, len_ref + 1), dtype=np.int16)
ops_matrix = np.zeros((len_hyp + 1, len_ref + 1), dtype=np.int8)
for i in range(len_hyp + 1):
cost_matrix[i][0] = i
for j in range(len_ref + 1):
cost_matrix[0][j] = j
for i in range(1, len_hyp + 1):
for j in range(1, len_ref + 1):
if hyp[i - 1] == ref[j - 1]:
cost_matrix[i][j] = cost_matrix[i - 1][j - 1]
else:
substitution = cost_matrix[i - 1][j - 1] + 1
insertion = cost_matrix[i - 1][j] + 1
deletion = cost_matrix[i][j - 1] + 1
compare_val = [substitution, insertion, deletion]
min_val = min(compare_val)
operation_idx = compare_val.index(min_val) + 1
cost_matrix[i][j] = min_val
ops_matrix[i][j] = operation_idx
match_idx = []
i = len_hyp
j = len_ref
rst = {"nwords": len_ref, "cor": 0, "wrong": 0, "ins": 0, "del": 0, "sub": 0}
while i >= 0 or j >= 0:
i_idx = max(0, i)
j_idx = max(0, j)
if ops_matrix[i_idx][j_idx] == 0: # correct
if i - 1 >= 0 and j - 1 >= 0:
match_idx.append((j - 1, i - 1))
rst["cor"] += 1
i -= 1
j -= 1
elif ops_matrix[i_idx][j_idx] == 2: # insert
i -= 1
rst["ins"] += 1
elif ops_matrix[i_idx][j_idx] == 3: # delete
j -= 1
rst["del"] += 1
elif ops_matrix[i_idx][j_idx] == 1: # substitute
i -= 1
j -= 1
rst["sub"] += 1
if i < 0 and j >= 0:
rst["del"] += 1
elif j < 0 and i >= 0:
rst["ins"] += 1
match_idx.reverse()
wrong_cnt = cost_matrix[len_hyp][len_ref]
rst["wrong"] = wrong_cnt
return rst
def print_cer_detail(rst):
return (
"("
+ "nwords="
+ str(rst["nwords"])
+ ",cor="
+ str(rst["cor"])
+ ",ins="
+ str(rst["ins"])
+ ",del="
+ str(rst["del"])
+ ",sub="
+ str(rst["sub"])
+ ") corr:"
+ "{:.2%}".format(rst["cor"] / rst["nwords"])
+ ",cer:"
+ "{:.2%}".format(rst["wrong"] / rst["nwords"])
)
if __name__ == "__main__":
if len(sys.argv) != 4:
print("usage : python compute-wer.py test.ref test.hyp test.wer")
sys.exit(0)
ref_file = sys.argv[1]
hyp_file = sys.argv[2]
cer_detail_file = sys.argv[3]
compute_wer(ref_file, hyp_file, cer_detail_file)
@@ -0,0 +1,193 @@
# -*- encoding: utf-8 -*-
from pathlib import Path
from typing import Any, Dict, Iterable, List, NamedTuple, Set, Tuple, Union
import numpy as np
import kaldi_native_fbank as knf
root_dir = Path(__file__).resolve().parent
logger_initialized = {}
class WavFrontend:
"""Conventional frontend structure for ASR."""
def __init__(
self,
cmvn_file: str = None,
fs: int = 16000,
window: str = "hamming",
n_mels: int = 80,
frame_length: int = 25,
frame_shift: int = 10,
lfr_m: int = 1,
lfr_n: int = 1,
dither: float = 1.0,
**kwargs,
) -> None:
opts = knf.FbankOptions()
opts.frame_opts.samp_freq = fs
opts.frame_opts.dither = dither
opts.frame_opts.window_type = window
opts.frame_opts.frame_shift_ms = float(frame_shift)
opts.frame_opts.frame_length_ms = float(frame_length)
opts.mel_opts.num_bins = n_mels
opts.energy_floor = 0
opts.frame_opts.snip_edges = True
opts.mel_opts.debug_mel = False
self.opts = opts
self.lfr_m = lfr_m
self.lfr_n = lfr_n
self.cmvn_file = cmvn_file
if self.cmvn_file:
self.cmvn = self.load_cmvn()
self.fbank_fn = None
self.fbank_beg_idx = 0
self.reset_status()
def fbank(self, waveform: np.ndarray) -> Tuple[np.ndarray, np.ndarray]:
waveform = waveform * (1 << 15)
self.fbank_fn = knf.OnlineFbank(self.opts)
self.fbank_fn.accept_waveform(self.opts.frame_opts.samp_freq, waveform.tolist())
frames = self.fbank_fn.num_frames_ready
mat = np.empty([frames, self.opts.mel_opts.num_bins])
for i in range(frames):
mat[i, :] = self.fbank_fn.get_frame(i)
feat = mat.astype(np.float32)
feat_len = np.array(mat.shape[0]).astype(np.int32)
return feat, feat_len
def fbank_online(self, waveform: np.ndarray) -> Tuple[np.ndarray, np.ndarray]:
waveform = waveform * (1 << 15)
# self.fbank_fn = knf.OnlineFbank(self.opts)
self.fbank_fn.accept_waveform(self.opts.frame_opts.samp_freq, waveform.tolist())
frames = self.fbank_fn.num_frames_ready
mat = np.empty([frames, self.opts.mel_opts.num_bins])
for i in range(self.fbank_beg_idx, frames):
mat[i, :] = self.fbank_fn.get_frame(i)
# self.fbank_beg_idx += (frames-self.fbank_beg_idx)
feat = mat.astype(np.float32)
feat_len = np.array(mat.shape[0]).astype(np.int32)
return feat, feat_len
def reset_status(self):
self.fbank_fn = knf.OnlineFbank(self.opts)
self.fbank_beg_idx = 0
def lfr_cmvn(self, feat: np.ndarray) -> Tuple[np.ndarray, np.ndarray]:
if self.lfr_m != 1 or self.lfr_n != 1:
feat = self.apply_lfr(feat, self.lfr_m, self.lfr_n)
if self.cmvn_file:
feat = self.apply_cmvn(feat)
feat_len = np.array(feat.shape[0]).astype(np.int32)
return feat, feat_len
@staticmethod
def apply_lfr(inputs: np.ndarray, lfr_m: int, lfr_n: int) -> np.ndarray:
LFR_inputs = []
T = inputs.shape[0]
T_lfr = int(np.ceil(T / lfr_n))
left_padding = np.tile(inputs[0], ((lfr_m - 1) // 2, 1))
inputs = np.vstack((left_padding, inputs))
T = T + (lfr_m - 1) // 2
for i in range(T_lfr):
if lfr_m <= T - i * lfr_n:
LFR_inputs.append((inputs[i * lfr_n : i * lfr_n + lfr_m]).reshape(1, -1))
else:
# process last LFR frame
num_padding = lfr_m - (T - i * lfr_n)
frame = inputs[i * lfr_n :].reshape(-1)
for _ in range(num_padding):
frame = np.hstack((frame, inputs[-1]))
LFR_inputs.append(frame)
LFR_outputs = np.vstack(LFR_inputs).astype(np.float32)
return LFR_outputs
def apply_cmvn(self, inputs: np.ndarray) -> np.ndarray:
"""
Apply CMVN with mvn data
"""
frame, dim = inputs.shape
means = np.tile(self.cmvn[0:1, :dim], (frame, 1))
vars = np.tile(self.cmvn[1:2, :dim], (frame, 1))
inputs = (inputs + means) * vars
return inputs
def load_cmvn(
self,
) -> np.ndarray:
with open(self.cmvn_file, "r", encoding="utf-8") as f:
lines = f.readlines()
means_list = []
vars_list = []
for i in range(len(lines)):
line_item = lines[i].split()
if line_item[0] == "<AddShift>":
line_item = lines[i + 1].split()
if line_item[0] == "<LearnRateCoef>":
add_shift_line = line_item[3 : (len(line_item) - 1)]
means_list = list(add_shift_line)
continue
elif line_item[0] == "<Rescale>":
line_item = lines[i + 1].split()
if line_item[0] == "<LearnRateCoef>":
rescale_line = line_item[3 : (len(line_item) - 1)]
vars_list = list(rescale_line)
continue
means = np.array(means_list).astype(np.float64)
vars = np.array(vars_list).astype(np.float64)
cmvn = np.array([means, vars])
return cmvn
def load_bytes(input):
middle_data = np.frombuffer(input, dtype=np.int16)
middle_data = np.asarray(middle_data)
if middle_data.dtype.kind not in "iu":
raise TypeError("'middle_data' must be an array of integers")
dtype = np.dtype("float32")
if dtype.kind != "f":
raise TypeError("'dtype' must be a floating point type")
i = np.iinfo(middle_data.dtype)
abs_max = 2 ** (i.bits - 1)
offset = i.min + abs_max
array = np.frombuffer((middle_data.astype(dtype) - offset) / abs_max, dtype=np.float32)
return array
def test():
path = "/nfs/zhifu.gzf/export/damo/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-pytorch/example/asr_example.wav"
import librosa
cmvn_file = "/nfs/zhifu.gzf/export/damo/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-pytorch/am.mvn"
config_file = "/nfs/zhifu.gzf/export/damo/speech_paraformer-large_asr_nat-zh-cn-16k-common-vocab8404-pytorch/config.yaml"
from funasr.runtime.python.onnxruntime.rapid_paraformer.utils.utils import read_yaml
config = read_yaml(config_file)
waveform, _ = librosa.load(path, sr=None)
frontend = WavFrontend(
cmvn_file=cmvn_file,
**config["frontend_conf"],
)
speech, _ = frontend.fbank_online(waveform) # 1d, (sample,), numpy
feat, feat_len = frontend.lfr_cmvn(
speech
) # 2d, (frame, 450), np.float32 -> torch, torch.from_numpy(), dtype, (1, frame, 450)
frontend.reset_status() # clear cache
return feat, feat_len
if __name__ == "__main__":
test()
@@ -0,0 +1,364 @@
# Copyright (c) Alibaba, Inc. and its affiliates.
import string
import logging
from typing import Any, List, Union
def isChinese(ch: str):
if "\u4e00" <= ch <= "\u9fff" or "\u0030" <= ch <= "\u0039":
return True
return False
def isAllChinese(word: Union[List[Any], str]):
word_lists = []
for i in word:
cur = i.replace(" ", "")
cur = cur.replace("</s>", "")
cur = cur.replace("<s>", "")
word_lists.append(cur)
if len(word_lists) == 0:
return False
for ch in word_lists:
if isChinese(ch) is False:
return False
return True
def isAllAlpha(word: Union[List[Any], str]):
word_lists = []
for i in word:
cur = i.replace(" ", "")
cur = cur.replace("</s>", "")
cur = cur.replace("<s>", "")
word_lists.append(cur)
if len(word_lists) == 0:
return False
for ch in word_lists:
if ch.isalpha() is False and ch != "'":
return False
elif ch.isalpha() is True and isChinese(ch) is True:
return False
return True
# def abbr_dispose(words: List[Any]) -> List[Any]:
def abbr_dispose(words: List[Any], time_stamp: List[List] = None) -> List[Any]:
words_size = len(words)
word_lists = []
abbr_begin = []
abbr_end = []
last_num = -1
ts_lists = []
ts_nums = []
ts_index = 0
for num in range(words_size):
if num <= last_num:
continue
if len(words[num]) == 1 and words[num].encode("utf-8").isalpha():
if (
num + 1 < words_size
and words[num + 1] == " "
and num + 2 < words_size
and len(words[num + 2]) == 1
and words[num + 2].encode("utf-8").isalpha()
):
# found the begin of abbr
abbr_begin.append(num)
num += 2
abbr_end.append(num)
# to find the end of abbr
while True:
num += 1
if num < words_size and words[num] == " ":
num += 1
if (
num < words_size
and len(words[num]) == 1
and words[num].encode("utf-8").isalpha()
):
abbr_end.pop()
abbr_end.append(num)
last_num = num
else:
break
else:
break
for num in range(words_size):
if words[num] == " ":
ts_nums.append(ts_index)
else:
ts_nums.append(ts_index)
ts_index += 1
last_num = -1
for num in range(words_size):
if num <= last_num:
continue
if num in abbr_begin:
if time_stamp is not None:
begin = time_stamp[ts_nums[num]][0]
word_lists.append(words[num].upper())
num += 1
while num < words_size:
if num in abbr_end:
word_lists.append(words[num].upper())
last_num = num
break
else:
if words[num].encode("utf-8").isalpha():
word_lists.append(words[num].upper())
num += 1
if time_stamp is not None:
end = time_stamp[ts_nums[num]][1]
ts_lists.append([begin, end])
else:
word_lists.append(words[num])
if time_stamp is not None and words[num] != " ":
begin = time_stamp[ts_nums[num]][0]
end = time_stamp[ts_nums[num]][1]
ts_lists.append([begin, end])
begin = end
if time_stamp is not None:
return word_lists, ts_lists
else:
return word_lists
def sentence_postprocess(words: List[Any], time_stamp: List[List] = None):
middle_lists = []
word_lists = []
word_item = ""
ts_lists = []
# wash words lists
for i in words:
word = ""
if isinstance(i, str):
word = i
else:
word = i.decode("utf-8")
if word in ["<s>", "</s>", "<unk>"]:
continue
else:
middle_lists.append(word)
# all chinese characters
if isAllChinese(middle_lists):
for i, ch in enumerate(middle_lists):
word_lists.append(ch.replace(" ", ""))
if time_stamp is not None:
ts_lists = time_stamp
# all alpha characters
elif isAllAlpha(middle_lists):
ts_flag = True
for i, ch in enumerate(middle_lists):
if ts_flag and time_stamp is not None:
begin = time_stamp[i][0]
end = time_stamp[i][1]
word = ""
if "@@" in ch:
word = ch.replace("@@", "")
word_item += word
if time_stamp is not None:
ts_flag = False
end = time_stamp[i][1]
else:
word_item += ch
word_lists.append(word_item)
word_lists.append(" ")
word_item = ""
if time_stamp is not None:
ts_flag = True
end = time_stamp[i][1]
ts_lists.append([begin, end])
begin = end
# mix characters
else:
alpha_blank = False
ts_flag = True
begin = -1
end = -1
for i, ch in enumerate(middle_lists):
if ts_flag and time_stamp is not None:
begin = time_stamp[i][0]
end = time_stamp[i][1]
word = ""
if isAllChinese(ch):
if alpha_blank is True:
word_lists.pop()
word_lists.append(ch)
alpha_blank = False
if time_stamp is not None:
ts_flag = True
ts_lists.append([begin, end])
begin = end
elif "@@" in ch:
word = ch.replace("@@", "")
word_item += word
alpha_blank = False
if time_stamp is not None:
ts_flag = False
end = time_stamp[i][1]
elif isAllAlpha(ch):
word_item += ch
word_lists.append(word_item)
word_lists.append(" ")
word_item = ""
alpha_blank = True
if time_stamp is not None:
ts_flag = True
end = time_stamp[i][1]
ts_lists.append([begin, end])
begin = end
else:
raise ValueError("invalid character: {}".format(ch))
if time_stamp is not None:
word_lists, ts_lists = abbr_dispose(word_lists, ts_lists)
real_word_lists = []
for ch in word_lists:
if ch != " ":
real_word_lists.append(ch)
sentence = " ".join(real_word_lists).strip()
return sentence, ts_lists, real_word_lists
else:
word_lists = abbr_dispose(word_lists)
real_word_lists = []
for ch in word_lists:
if ch != " ":
real_word_lists.append(ch)
sentence = "".join(word_lists).strip()
return sentence, real_word_lists
emo_dict = {
"<|HAPPY|>": "😊",
"<|SAD|>": "😔",
"<|ANGRY|>": "😡",
"<|NEUTRAL|>": "",
"<|FEARFUL|>": "😰",
"<|DISGUSTED|>": "🤢",
"<|SURPRISED|>": "😮",
}
event_dict = {
"<|BGM|>": "🎼",
"<|Speech|>": "",
"<|Applause|>": "👏",
"<|Laughter|>": "😀",
"<|Cry|>": "😭",
"<|Sneeze|>": "🤧",
"<|Breath|>": "",
"<|Cough|>": "🤧",
}
lang_dict = {
"<|zh|>": "<|lang|>",
"<|en|>": "<|lang|>",
"<|yue|>": "<|lang|>",
"<|ja|>": "<|lang|>",
"<|ko|>": "<|lang|>",
"<|nospeech|>": "<|lang|>",
}
emoji_dict = {
"<|nospeech|><|Event_UNK|>": "",
"<|zh|>": "",
"<|en|>": "",
"<|yue|>": "",
"<|ja|>": "",
"<|ko|>": "",
"<|nospeech|>": "",
"<|HAPPY|>": "😊",
"<|SAD|>": "😔",
"<|ANGRY|>": "😡",
"<|NEUTRAL|>": "",
"<|BGM|>": "🎼",
"<|Speech|>": "",
"<|Applause|>": "👏",
"<|Laughter|>": "😀",
"<|FEARFUL|>": "😰",
"<|DISGUSTED|>": "🤢",
"<|SURPRISED|>": "😮",
"<|Cry|>": "😭",
"<|EMO_UNKNOWN|>": "",
"<|Sneeze|>": "🤧",
"<|Breath|>": "",
"<|Cough|>": "😷",
"<|Sing|>": "",
"<|Speech_Noise|>": "",
"<|withitn|>": "",
"<|woitn|>": "",
"<|GBG|>": "",
"<|Event_UNK|>": "",
}
emo_set = {"😊", "😔", "😡", "😰", "🤢", "😮"}
event_set = {
"🎼",
"👏",
"😀",
"😭",
"🤧",
"😷",
}
def format_str_v2(s):
sptk_dict = {}
for sptk in emoji_dict:
sptk_dict[sptk] = s.count(sptk)
s = s.replace(sptk, "")
emo = "<|NEUTRAL|>"
for e in emo_dict:
if sptk_dict[e] > sptk_dict[emo]:
emo = e
for e in event_dict:
if sptk_dict[e] > 0:
s = event_dict[e] + s
s = s + emo_dict[emo]
for emoji in emo_set.union(event_set):
s = s.replace(" " + emoji, emoji)
s = s.replace(emoji + " ", emoji)
return s.strip()
def rich_transcription_postprocess(s):
def get_emo(s):
return s[-1] if s[-1] in emo_set else None
def get_event(s):
return s[0] if s[0] in event_set else None
s = s.replace("<|nospeech|><|Event_UNK|>", "")
for lang in lang_dict:
s = s.replace(lang, "<|lang|>")
s_list = [format_str_v2(s_i).strip(" ") for s_i in s.split("<|lang|>")]
new_s = " " + s_list[0]
cur_ent_event = get_event(new_s)
for i in range(1, len(s_list)):
if len(s_list[i]) == 0:
continue
if get_event(s_list[i]) == cur_ent_event and get_event(s_list[i]) != None:
s_list[i] = s_list[i][1:]
# else:
cur_ent_event = get_event(s_list[i])
if get_emo(s_list[i]) != None and get_emo(s_list[i]) == get_emo(new_s):
new_s = new_s[:-1]
new_s += s_list[i].strip().lstrip()
new_s = new_s.replace("The.", " ")
return new_s.strip()
@@ -0,0 +1,53 @@
from pathlib import Path
from typing import Iterable
from typing import List
from typing import Union
import sentencepiece as spm
class SentencepiecesTokenizer:
def __init__(self, bpemodel: Union[Path, str], **kwargs):
super().__init__(**kwargs)
self.bpemodel = str(bpemodel)
# NOTE(kamo):
# Don't build SentencePieceProcessor in __init__()
# because it's not picklable and it may cause following error,
# "TypeError: can't pickle SwigPyObject objects",
# when giving it as argument of "multiprocessing.Process()".
self.sp = None
self._build_sentence_piece_processor()
def __repr__(self):
return f'{self.__class__.__name__}(model="{self.bpemodel}")'
def _build_sentence_piece_processor(self):
# Build SentencePieceProcessor lazily.
if self.sp is None:
self.sp = spm.SentencePieceProcessor()
self.sp.load(self.bpemodel)
def text2tokens(self, line: str) -> List[str]:
self._build_sentence_piece_processor()
return self.sp.EncodeAsPieces(line)
def tokens2text(self, tokens: Iterable[str]) -> str:
self._build_sentence_piece_processor()
return self.sp.DecodePieces(list(tokens))
def encode(self, line: str, **kwargs) -> List[int]:
self._build_sentence_piece_processor()
return self.sp.EncodeAsIds(line)
def decode(self, line: List[int], **kwargs):
self._build_sentence_piece_processor()
return self.sp.DecodeIds(line)
def get_vocab_size(self):
return self.sp.GetPieceSize()
def ids2tokens(self, *args, **kwargs):
return self.decode(*args, **kwargs)
def tokens2ids(self, *args, **kwargs):
return self.encode(*args, **kwargs)
@@ -0,0 +1,62 @@
import numpy as np
def time_stamp_lfr6_onnx(us_cif_peak, char_list, begin_time=0.0, total_offset=-1.5):
if not len(char_list):
return "", []
START_END_THRESHOLD = 5
MAX_TOKEN_DURATION = 30
TIME_RATE = 10.0 * 6 / 1000 / 3 # 3 times upsampled
cif_peak = us_cif_peak.reshape(-1).cpu()
num_frames = cif_peak.shape[-1]
if char_list[-1] == "</s>":
char_list = char_list[:-1]
# char_list = [i for i in text]
timestamp_list = []
new_char_list = []
# for bicif model trained with large data, cif2 actually fires when a character starts
# so treat the frames between two peaks as the duration of the former token
fire_place = np.where(cif_peak > 1.0 - 1e-4)[0] + total_offset # np format
num_peak = len(fire_place)
assert num_peak == len(char_list) + 1 # number of peaks is supposed to be number of tokens + 1
# begin silence
if fire_place[0] > START_END_THRESHOLD:
# char_list.insert(0, '<sil>')
timestamp_list.append([0.0, fire_place[0] * TIME_RATE])
new_char_list.append("<sil>")
# tokens timestamp
for i in range(len(fire_place) - 1):
new_char_list.append(char_list[i])
if (
i == len(fire_place) - 2
or MAX_TOKEN_DURATION < 0
or fire_place[i + 1] - fire_place[i] < MAX_TOKEN_DURATION
):
timestamp_list.append([fire_place[i] * TIME_RATE, fire_place[i + 1] * TIME_RATE])
else:
# cut the duration to token and sil of the 0-weight frames last long
_split = fire_place[i] + MAX_TOKEN_DURATION
timestamp_list.append([fire_place[i] * TIME_RATE, _split * TIME_RATE])
timestamp_list.append([_split * TIME_RATE, fire_place[i + 1] * TIME_RATE])
new_char_list.append("<sil>")
# tail token and end silence
if num_frames - fire_place[-1] > START_END_THRESHOLD:
_end = (num_frames + fire_place[-1]) / 2
timestamp_list[-1][1] = _end * TIME_RATE
timestamp_list.append([_end * TIME_RATE, num_frames * TIME_RATE])
new_char_list.append("<sil>")
else:
timestamp_list[-1][1] = num_frames * TIME_RATE
if begin_time: # add offset time in model with vad
for i in range(len(timestamp_list)):
timestamp_list[i][0] = timestamp_list[i][0] + begin_time / 1000.0
timestamp_list[i][1] = timestamp_list[i][1] + begin_time / 1000.0
assert len(new_char_list) == len(timestamp_list)
res_str = ""
for char, timestamp in zip(new_char_list, timestamp_list):
res_str += "{} {} {};".format(char, timestamp[0], timestamp[1])
res = []
for char, timestamp in zip(new_char_list, timestamp_list):
if char != "<sil>":
res.append([int(timestamp[0] * 1000), int(timestamp[1] * 1000)])
return res_str, res
@@ -0,0 +1,161 @@
# -*- encoding: utf-8 -*-
import yaml
import logging
import functools
import numpy as np
from pathlib import Path
from typing import Any, Dict, Iterable, List, NamedTuple, Set, Tuple, Union
root_dir = Path(__file__).resolve().parent
logger_initialized = {}
def pad_list(xs, pad_value, max_len=None):
n_batch = len(xs)
if max_len is None:
max_len = max(x.size(0) for x in xs)
# pad = xs[0].new(n_batch, max_len, *xs[0].size()[1:]).fill_(pad_value)
# numpy format
pad = (np.zeros((n_batch, max_len)) + pad_value).astype(np.int32)
for i in range(n_batch):
pad[i, : xs[i].shape[0]] = xs[i]
return pad
class TokenIDConverter:
def __init__(
self,
token_list: Union[List, str],
):
self.token_list = token_list
self.unk_symbol = token_list[-1]
self.token2id = {v: i for i, v in enumerate(self.token_list)}
self.unk_id = self.token2id[self.unk_symbol]
def get_num_vocabulary_size(self) -> int:
return len(self.token_list)
def ids2tokens(self, integers: Union[np.ndarray, Iterable[int]]) -> List[str]:
if isinstance(integers, np.ndarray) and integers.ndim != 1:
raise TokenIDConverterError(f"Must be 1 dim ndarray, but got {integers.ndim}")
return [self.token_list[i] for i in integers]
def tokens2ids(self, tokens: Iterable[str]) -> List[int]:
return [self.token2id.get(i, self.unk_id) for i in tokens]
class CharTokenizer:
def __init__(
self,
symbol_value: Union[Path, str, Iterable[str]] = None,
space_symbol: str = "<space>",
remove_non_linguistic_symbols: bool = False,
):
self.space_symbol = space_symbol
self.non_linguistic_symbols = self.load_symbols(symbol_value)
self.remove_non_linguistic_symbols = remove_non_linguistic_symbols
@staticmethod
def load_symbols(value: Union[Path, str, Iterable[str]] = None) -> Set:
if value is None:
return set()
if isinstance(value, Iterable[str]):
return set(value)
file_path = Path(value)
if not file_path.exists():
logging.warning("%s doesn't exist.", file_path)
return set()
with file_path.open("r", encoding="utf-8") as f:
return set(line.rstrip() for line in f)
def text2tokens(self, line: Union[str, list]) -> List[str]:
tokens = []
while len(line) != 0:
for w in self.non_linguistic_symbols:
if line.startswith(w):
if not self.remove_non_linguistic_symbols:
tokens.append(line[: len(w)])
line = line[len(w) :]
break
else:
t = line[0]
if t == " ":
t = "<space>"
tokens.append(t)
line = line[1:]
return tokens
def tokens2text(self, tokens: Iterable[str]) -> str:
tokens = [t if t != self.space_symbol else " " for t in tokens]
return "".join(tokens)
def __repr__(self):
return (
f"{self.__class__.__name__}("
f'space_symbol="{self.space_symbol}"'
f'non_linguistic_symbols="{self.non_linguistic_symbols}"'
f")"
)
class Hypothesis(NamedTuple):
"""Hypothesis data type."""
yseq: np.ndarray
score: Union[float, np.ndarray] = 0
scores: Dict[str, Union[float, np.ndarray]] = dict()
states: Dict[str, Any] = dict()
def asdict(self) -> dict:
"""Convert data to JSON-friendly dict."""
return self._replace(
yseq=self.yseq.tolist(),
score=float(self.score),
scores={k: float(v) for k, v in self.scores.items()},
)._asdict()
def read_yaml(yaml_path: Union[str, Path]) -> Dict:
if not Path(yaml_path).exists():
raise FileExistsError(f"The {yaml_path} does not exist.")
with open(str(yaml_path), "rb") as f:
data = yaml.load(f, Loader=yaml.Loader)
return data
@functools.lru_cache()
def get_logger(name="funasr_torch"):
"""Initialize and get a logger by name.
If the logger has not been initialized, this method will initialize the
logger by adding one or two handlers, otherwise the initialized logger will
be directly returned. During initialization, a StreamHandler will always be
added.
Args:
name (str): Logger name.
Returns:
logging.Logger: The expected logger.
"""
logger = logging.getLogger(name)
if name in logger_initialized:
return logger
for logger_name in logger_initialized:
if name.startswith(logger_name):
return logger
formatter = logging.Formatter(
"[%(asctime)s] %(name)s %(levelname)s: %(message)s", datefmt="%Y/%m/%d %H:%M:%S"
)
sh = logging.StreamHandler()
sh.setFormatter(formatter)
logger.addHandler(sh)
logger_initialized[name] = True
logger.propagate = False
return logger