266 lines
9.1 KiB
Python
266 lines
9.1 KiB
Python
# -*- coding:utf-8 -*-
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# 使用讯飞 语音听写（流式版） 将文件夹内音频文件转换为文本，存入json中
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#
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# author: Randall
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#
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# cffi==1.12.3
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# gevent==1.4.0
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# greenlet==0.4.15
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# pycparser==2.19
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# six==1.12.0
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# websocket==0.2.1
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# websocket-client==0.56.0
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# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
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import websocket
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import datetime
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import hashlib
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import base64
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import hmac
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import json
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from urllib.parse import urlencode
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import ssl
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from wsgiref.handlers import format_date_time
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from datetime import datetime
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from time import mktime
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import _thread as thread
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import os
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import time
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STATUS_FIRST_FRAME = 0 # 第一帧的标识
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STATUS_CONTINUE_FRAME = 1 # 中间帧标识
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STATUS_LAST_FRAME = 2 # 最后一帧的标识
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wsParam = None
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results = ''
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running = False
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class Ws_Param(object):
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# 初始化
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def __init__(self, APPID, APIKey, APISecret, AudioFile):
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self.APPID = APPID
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self.APIKey = APIKey
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self.APISecret = APISecret
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self.AudioFile = AudioFile
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# 公共参数(common)
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self.CommonArgs = {"app_id": self.APPID}
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# 业务参数(business)，更多个性化参数可在官网查看
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self.BusinessArgs = {"domain": "iat", "language": "zh_cn", "accent": "mandarin", "vinfo":1,"vad_eos":10000}
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# 生成url
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def create_url(self):
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url = 'wss://ws-api.xfyun.cn/v2/iat'
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# 生成RFC1123格式的时间戳
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now = datetime.now()
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date = format_date_time(mktime(now.timetuple()))
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# 拼接字符串
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signature_origin = "host: " + "ws-api.xfyun.cn" + "\n"
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signature_origin += "date: " + date + "\n"
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signature_origin += "GET " + "/v2/iat " + "HTTP/1.1"
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# 进行hmac-sha256进行加密
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signature_sha = hmac.new(self.APISecret.encode('utf-8'), signature_origin.encode('utf-8'),
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digestmod=hashlib.sha256).digest()
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signature_sha = base64.b64encode(signature_sha).decode(encoding='utf-8')
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authorization_origin = "api_key=\"%s\", algorithm=\"%s\", headers=\"%s\", signature=\"%s\"" % (
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self.APIKey, "hmac-sha256", "host date request-line", signature_sha)
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authorization = base64.b64encode(authorization_origin.encode('utf-8')).decode(encoding='utf-8')
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# 将请求的鉴权参数组合为字典
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v = {
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"authorization": authorization,
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"date": date,
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"host": "ws-api.xfyun.cn"
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}
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# 拼接鉴权参数，生成url
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url = url + '?' + urlencode(v)
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# print("date: ",date)
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# print("v: ",v)
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# 此处打印出建立连接时候的url,参考本demo的时候可取消上方打印的注释，比对相同参数时生成的url与自己代码生成的url是否一致
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# print('websocket url :', url)
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return url
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def is_audio_file(file_path):
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audio_extensions = ['.wav', '.mp3', '.m4a', '.flac', '.pcm', '.aac', '.opus', '.ogg', '.amr', '.speex', '.lyb', '.ac3', '.ape', '.m4r', '.mp4', '.acc', '.wma']
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return any(file_path.lower().endswith(ext) for ext in audio_extensions)
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# 收到websocket消息的处理
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def on_message(ws, message):
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try:
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code = json.loads(message)["code"]
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sid = json.loads(message)["sid"]
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if code != 0:
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errMsg = json.loads(message)["message"]
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print("sid:%s call error:%s code is:%s" % (sid, errMsg, code))
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else:
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data = json.loads(message)["data"]["result"]["ws"]
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# print(json.loads(message))
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result = ""
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for i in data:
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for w in i["cw"]:
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result += w["w"]
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print("sid:%s call success!,data is:%s" % (sid, json.dumps(data, ensure_ascii=False)))
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global results
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results += result
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except Exception as e:
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print("receive msg,but parse exception:", e)
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# 收到websocket错误的处理
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def on_error(ws, error):
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print("### websocket error:", error)
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global running
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global results
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running = False
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results += '*#本次转写失败#*，error：' + str(error)
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# 收到websocket关闭的处理
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def on_close(ws,a,b):
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print("### websocket closed ###")
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global running
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running = False
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# 收到websocket连接建立的处理
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def on_open(ws):
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def run(*args):
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frameSize = 8000 # 每一帧的音频大小
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intervel = 0.04 # 发送音频间隔(单位:s)
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status = STATUS_FIRST_FRAME # 音频的状态信息，标识音频是第一帧，还是中间帧、最后一帧
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with open(wsParam.AudioFile, "rb") as fp:
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while True:
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buf = fp.read(frameSize)
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# 文件结束
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if not buf:
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status = STATUS_LAST_FRAME
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# 第一帧处理
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# 发送第一帧音频，带business 参数
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# appid 必须带上，只需第一帧发送
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if status == STATUS_FIRST_FRAME:
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d = {"common": wsParam.CommonArgs,
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"business": wsParam.BusinessArgs,
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"data": {"status": 0, "format": "audio/L16;rate=16000",
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"audio": str(base64.b64encode(buf), 'utf-8'),
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"encoding": "raw"}}
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d = json.dumps(d)
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ws.send(d)
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status = STATUS_CONTINUE_FRAME
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# 中间帧处理
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elif status == STATUS_CONTINUE_FRAME:
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d = {"data": {"status": 1, "format": "audio/L16;rate=16000",
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"audio": str(base64.b64encode(buf), 'utf-8'),
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"encoding": "raw"}}
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ws.send(json.dumps(d))
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# 最后一帧处理
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elif status == STATUS_LAST_FRAME:
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d = {"data": {"status": 2, "format": "audio/L16;rate=16000",
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"audio": str(base64.b64encode(buf), 'utf-8'),
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"encoding": "raw"}}
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ws.send(json.dumps(d))
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time.sleep(1)
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break
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# 模拟音频采样间隔
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time.sleep(intervel)
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ws.close()
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thread.start_new_thread(run, ())
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def add_to_json_file(file_name, key, value):
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if not os.path.exists(file_name):
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with open(file_name, 'w') as f:
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json.dump({}, f)
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with open(file_name, 'r') as f:
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data = json.load(f)
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data[key] = value
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with open(file_name, 'w') as f:
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json.dump(data, f, indent=4)
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def judge_weather_in_json(file_name, key):
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if not os.path.exists(file_name):
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return False
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with open(file_name, 'r') as f:
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data = json.load(f)
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return key in data
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def main():
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folder_path = input("请输入文件夹路径: ")
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keyList = [
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{
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'appid': 'xxxxxxxx',
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'api_secret':'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
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'api_key': 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
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},
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{
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'appid': 'xxxxxxxx',
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'api_secret':'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
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'api_key': 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
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},
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]
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if not os.path.isdir(folder_path):
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print("无效的文件夹路径")
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return
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file_name_results = {}
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full_path_results = {}
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times = 0
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for root, _, files in os.walk(folder_path):
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for file in files:
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file_path = os.path.join(root, file)
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if is_audio_file(file_path):
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if judge_weather_in_json('full_path_results.json', file_path):
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continue
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global wsParam
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global running
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running = True
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print("### websocket started ###")
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appid = keyList[times % len(keyList)]['appid']
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api_secret = keyList[times % len(keyList)]['api_secret']
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api_key = keyList[times % len(keyList)]['api_key']
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times += 1
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wsParam = Ws_Param(APPID=appid, APISecret=api_secret,
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APIKey=api_key,
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AudioFile=file_path)
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websocket.enableTrace(False)
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wsUrl = wsParam.create_url()
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ws = websocket.WebSocketApp(wsUrl, on_message=on_message, on_error=on_error, on_close=on_close)
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ws.on_open = on_open
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ws.run_forever(sslopt={"cert_reqs": ssl.CERT_NONE})
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while running:
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time.sleep(1)
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global results
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file_name_results[file] = results
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full_path_results[file_path] = results
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add_to_json_file('file_name_results.json', file, results)
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add_to_json_file('full_path_results.json', file_path, results)
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results = ''
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print("转写结果:")
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for file, transcription in file_name_results.items():
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print(f"{file}: {transcription}")
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print("转写结果已保存到 file_name_results.json 和 full_path_results.json")
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if __name__ == "__main__":
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main() |