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# -*- coding:utf-8 -*-
import websocket
import datetime
import hashlib
import base64
import hmac
import json
from urllib.parse import urlencode
import time
import ssl
from wsgiref.handlers import format_date_time
from datetime import datetime
from time import mktime
import _thread as thread
import os
import shutil
import ffmpeg
import sys
wsParam = None
class Const() :
PCM_FOLDER = './pcm'
class Ws_Param(object):
# 初始化
def __init__(self, APPID, APIKey, APISecret, Text):
self.APPID = APPID
self.APIKey = APIKey
self.APISecret = APISecret
self.Text = Text
# 公共参数(common)
self.CommonArgs = {"app_id": self.APPID}
# 业务参数(business)，更多个性化参数可在官网查看
self.BusinessArgs = {"aue": "raw", "auf": "audio/L16;rate=16000", "vcn": "aisjiuxu", "volume":80, "pitch":25, "tte":"utf8"}
self.Data = {"status": 2, "text": str(base64.b64encode(self.Text.encode('utf-8')), "UTF8")}
#使用小语种须使用以下方式，此处的unicode指的是 utf16小端的编码方式，即"UTF-16LE"”
#self.Data = {"status": 2, "text": str(base64.b64encode(self.Text.encode('utf-16')), "UTF8")}
# 生成url
def create_url(self):
url = 'wss://tts-api.xfyun.cn/v2/tts'
# 生成RFC1123格式的时间戳
now = datetime.now()
date = format_date_time(mktime(now.timetuple()))
# 拼接字符串
signature_origin = "host: " + "ws-api.xfyun.cn" + "\n"
signature_origin += "date: " + date + "\n"
signature_origin += "GET " + "/v2/tts " + "HTTP/1.1"
# 进行hmac-sha256进行加密
signature_sha = hmac.new(self.APISecret.encode('utf-8'), signature_origin.encode('utf-8'),
digestmod=hashlib.sha256).digest()
signature_sha = base64.b64encode(signature_sha).decode(encoding='utf-8')
authorization_origin = "api_key=\"%s\", algorithm=\"%s\", headers=\"%s\", signature=\"%s\"" % (
self.APIKey, "hmac-sha256", "host date request-line", signature_sha)
authorization = base64.b64encode(authorization_origin.encode('utf-8')).decode(encoding='utf-8')
# 将请求的鉴权参数组合为字典
v = {
"authorization": authorization,
"date": date,
"host": "ws-api.xfyun.cn"
}
# 拼接鉴权参数，生成url
url = url + '?' + urlencode(v)
# print("date: ",date)
# print("v: ",v)
# 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
# print('websocket url :', url)
return url
def on_message(ws, message):
try:
message =json.loads(message)
code = message["code"]
sid = message["sid"]
audio = message["data"]["audio"]
audio = base64.b64decode(audio)
status = message["data"]["status"]
ced = message["data"]["ced"]
print(message)
if status == 2:
print("ws is closed")
ws.close()
if code != 0:
errMsg = message["message"]
print("sid:%s call error:%s code is:%s" % (sid, errMsg, code))
else:
with open(Const.PCM_FOLDER + '/v_'+ ced.zfill(8) +'.pcm', 'ab') as f:
f.write(audio)
with open(Const.PCM_FOLDER + '/all.pcm', 'ab') as fa:
fa.write(audio)
except Exception as e:
print("receive msg,but parse exception:", e)
def on_error(ws, error):
print("### error:", error)
def on_close(ws):
print("### closed ###")
def on_open(ws):
def run(*args):
d = {"common": wsParam.CommonArgs,
"business": wsParam.BusinessArgs,
"data": wsParam.Data,
}
d = json.dumps(d)
print("------>开始发送文本数据")
ws.send(d)
thread.start_new_thread(run, ())
def read_text() :
with open('content.txt','r',encoding='utf-8') as f:
content = f.read()
return content
def pcm_duration(filename):
fsize = os.path.getsize(filename)
duration = fsize / 16000 / 2
print(duration)
return float(duration)
def format_mtime(mtime) :
hh = int(mtime / 3600000)
mm = int((mtime % 3600000) / 60000)
ss = int((mtime % 60000) / 1000)
sss = int(mtime % 1000)
text = ('%02d' % hh) + ':' + ('%02d' % mm) + ':' + ('%02d' % ss) + ',' + ('%03d' % sss)
return(text)
def init():
global wsParam
if os.path.exists(Const.PCM_FOLDER):
shutil.rmtree(Const.PCM_FOLDER)
time.sleep(1)
os.makedirs(Const.PCM_FOLDER)
time.sleep(1)
text = read_text()
print(text)
wsParam = Ws_Param(APPID='XXXXX', APISecret='XXXXXXXXXXXXXXXXXXXXXXXXXX',
APIKey='XXXXXXXXXXXXXXXXXXXXXXXXXXXX',
Text=text)
def create_pcm():
global wsParam
websocket.enableTrace(False)
wsUrl = wsParam.create_url()
ws = websocket.WebSocketApp(wsUrl, on_message=on_message, on_error=on_error, on_close=on_close)
ws.on_open = on_open
ws.run_forever(sslopt={"cert_reqs": ssl.CERT_NONE})
def create_srt() :
global wsParam
prevId = 1
prevCed = '0'
prevDuration = 0
text = read_text()
print(text)
for file in os.listdir(Const.PCM_FOLDER):
if (not os.path.isdir(file)) and (file.startswith('v_')) and (file.endswith('.pcm')):
print('process file ' + file)
duration = pcm_duration(Const.PCM_FOLDER + '/' + file)
ced = file[2:-4]
print('ced=' + ced)
if duration > 0.5 :
with open('content.srt', 'a') as fb:
line1 = str(prevId)
line2 = format_mtime(int(round(prevDuration * 1000))) + ' --> ' + format_mtime(int(round((prevDuration + duration) * 1000)))
line3 = text.encode('utf-8')[int(prevCed):int(ced)].decode('utf-8')
print(line1)
print(line2)
print(line3)
fb.write(line1 + '\n')
fb.write(line2 + '\n')
fb.write(line3 + '\n')
fb.write('\n')
prevId += 1
prevDuration += duration
prevCed = ced
print('prevDuration=' + str(prevDuration))
def convert_mp3():
cmd='ffmpeg -y -f s16le -ac 1 -ar 16000 -acodec pcm_s16le -i ' + Const.PCM_FOLDER + '/all.pcm all.mp3'
os.system(cmd)
if __name__ == "__main__":
init()
create_pcm()
create_srt()
convert_mp3()
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