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update timestamp func for libtorch

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shixian.shi 2023-03-20 19:16:46 +08:00
parent a9683afbb2
commit 70d6be45ed
1 changed files with 8 additions and 7 deletions
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15
funasr/runtime/python/libtorch/torch_paraformer/utils/timestamp_utils.py
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@ -1,11 +1,11 @@
import numpy as np
def time_stamp_lfr6_onnx(us_cif_peak, char_list, begin_time=0.0):
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 = 14
MAX_TOKEN_DURATION = 30
TIME_RATE = 10.0 * 6 / 1000 / 3 # 3 times upsampled
cif_peak = us_cif_peak.reshape(-1)
num_frames = cif_peak.shape[-1]
@ -16,7 +16,7 @@ def time_stamp_lfr6_onnx(us_cif_peak, char_list, begin_time=0.0):
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] - 1.5 # np format
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
@ -27,7 +27,7 @@ def time_stamp_lfr6_onnx(us_cif_peak, char_list, begin_time=0.0):
# tokens timestamp
for i in range(len(fire_place)-1):
new_char_list.append(char_list[i])
if MAX_TOKEN_DURATION < 0 or fire_place[i+1] - fire_place[i] < MAX_TOKEN_DURATION:
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
@ -48,11 +48,12 @@ def time_stamp_lfr6_onnx(us_cif_peak, char_list, begin_time=0.0):
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_total = []
res_str = ""
for char, timestamp in zip(new_char_list, timestamp_list):
res_total.append([char, timestamp[0], timestamp[1]]) # += "{} {} {};".format(char, timestamp[0], timestamp[1])
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, res_total
return res_str, res