utils/trans_utils.py

#!/usr/bin/env python3
# -*- encoding: utf-8 -*-
# Copyright FunASR (https://github.com/alibaba-damo-academy/FunClip). All Rights Reserved.
#  MIT License  (https://opensource.org/licenses/MIT)

import os
import re
import numpy as np  

PUNC_LIST = ['，', '。', '！', '？', '、', ',', '.', '?', '!']

def pre_proc(text):
    res = ''
    for i in range(len(text)):
        if text[i] in PUNC_LIST:
            continue
        if '\u4e00' <= text[i] <= '\u9fff':
            if len(res) and res[-1] != " ":
                res += ' ' + text[i]+' '
            else:
                res += text[i]+' '
        else:
            res += text[i]
    if res[-1] == ' ':
        res = res[:-1]
    return res

def proc(raw_text, timestamp, dest_text, lang='zh'):
    # simple matching
    ld = len(dest_text.split())
    mi, ts = [], []
    offset = 0
    while True:
        fi = raw_text.find(dest_text, offset, len(raw_text))
        ti = raw_text[:fi].count(' ')
        if fi == -1:
            break
        offset = fi + ld
        mi.append(fi)
        ts.append([timestamp[ti][0]*16, timestamp[ti+ld-1][1]*16])
    return ts
            

def proc_spk(dest_spk, sd_sentences):
    ts = []
    for d in sd_sentences:
        d_start = d['timestamp'][0][0]
        d_end = d['timestamp'][-1][1]
        spkid=dest_spk[3:]
        if str(d['spk']) == spkid and d_end-d_start>999:
            ts.append([d_start*16, d_end*16])
    return ts

def generate_vad_data(data, sd_sentences, sr=16000):
    assert len(data.shape) == 1
    vad_data = []
    for d in sd_sentences:
        d_start = round(d['ts_list'][0][0]/1000, 2)
        d_end = round(d['ts_list'][-1][1]/1000, 2)
        vad_data.append([d_start, d_end, data[int(d_start * sr):int(d_end * sr)]])
    return vad_data

def write_state(output_dir, state):
    for key in ['/recog_res_raw', '/timestamp', '/sentences']:#, '/sd_sentences']:
        with open(output_dir+key, 'w') as fout:
            fout.write(str(state[key[1:]]))
    if 'sd_sentences' in state:
        with open(output_dir+'/sd_sentences', 'w') as fout:
            fout.write(str(state['sd_sentences']))

def load_state(output_dir):
    state = {}
    with open(output_dir+'/recog_res_raw') as fin:
        line = fin.read()
        state['recog_res_raw'] = line
    with open(output_dir+'/timestamp') as fin:
        line = fin.read()
        state['timestamp'] = eval(line)
    with open(output_dir+'/sentences') as fin:
        line = fin.read()
        state['sentences'] = eval(line)
    if os.path.exists(output_dir+'/sd_sentences'):
        with open(output_dir+'/sd_sentences') as fin:
            line = fin.read()
            state['sd_sentences'] = eval(line)
    return state

def convert_pcm_to_float(data):
    if data.dtype == np.float64:
        return data
    elif data.dtype == np.float32:
        return data.astype(np.float64)
    elif data.dtype == np.int16:
        bit_depth = 16
    elif data.dtype == np.int32:
        bit_depth = 32
    elif data.dtype == np.int8:
        bit_depth = 8
    else:
        raise ValueError("Unsupported audio data type")

    # Now handle the integer types
    max_int_value = float(2 ** (bit_depth - 1))
    if bit_depth == 8:
        data = data - 128
    return (data.astype(np.float64) / max_int_value)

def convert_time_to_millis(time_str):
    # 格式: [小时:分钟:秒,毫秒]
    hours, minutes, seconds, milliseconds = map(int, re.split('[:,]', time_str))
    return (hours * 3600 + minutes * 60 + seconds) * 1000 + milliseconds

def extract_timestamps(input_text):
    # 使用正则表达式查找所有时间戳
    timestamps = re.findall(r'\[(\d{2}:\d{2}:\d{2},\d{2,3})\s*-\s*(\d{2}:\d{2}:\d{2},\d{2,3})\]', input_text)
    times_list = []
    print(timestamps)
    # 循环遍历找到的所有时间戳，并转换为毫秒
    for start_time, end_time in timestamps:
        start_millis = convert_time_to_millis(start_time)
        end_millis = convert_time_to_millis(end_time)
        times_list.append([start_millis, end_millis])
    
    return times_list


if __name__ == '__main__':
    text = ("1. [00:00:00,500-00:00:05,850] 在我们的设计普惠当中，有一个我经常津津乐道的项目叫寻找远方的美好。"
    "2. [00:00:07,120-00:00:12,940] 啊，在这样一个我们叫寻美在这样的一个项目当中，我们把它跟乡村振兴去结合起来，利用我们的设计的能力。"
    "3. [00:00:13,240-00:00:25,620] 问我们自身员工的设设计能力，我们设计生态伙伴的能力，帮助乡村振兴当中，要希望把他的产品推向市场，把他的农产品把他加工产品推向市场的这样的伙伴做一件事情，")

    print(extract_timestamps(text))