193 lines
6.3 KiB
Python
193 lines
6.3 KiB
Python
# -*- coding: utf-8 -*-
|
||
"""
|
||
Spyder Editor
|
||
|
||
This is a temporary script file.
|
||
"""
|
||
from __future__ import print_function
|
||
from builtins import range
|
||
import os
|
||
import wave
|
||
import struct
|
||
import time
|
||
import re
|
||
import subprocess
|
||
import binascii
|
||
|
||
# bh6bao 2021.03.05
|
||
|
||
from pydub import AudioSegment
|
||
filePath = './'
|
||
|
||
# 操作函数
|
||
def get_wav_make(dataDir):
|
||
sound= AudioSegment.from_wav(dataDir)
|
||
duration = sound.duration_seconds * 1000 # 音频时长（ms）
|
||
begin = 0
|
||
end = 10000
|
||
cut_wav = sound[begin:end] #以毫秒为单位截取[begin, end]区间的音频
|
||
cut_wav.export(filePath+ 'fhm_onechannel_8k_10.wav', format='wav') #存储新的wav文件
|
||
|
||
# wav文件转PCM数组
|
||
def get_wave_array_str(filename, target_bits):
|
||
wave_read = wave.open(filename, "r")
|
||
array_str = "// start\n\t"
|
||
nchannels, sampwidth, framerate, nframes, comptype, compname = wave_read.getparams()
|
||
sampwidth *= 8
|
||
for i in range(wave_read.getnframes()):
|
||
val, = struct.unpack("<H", wave_read.readframes(1))
|
||
scale_val = (1 << target_bits) - 1
|
||
cur_lim = (1 << sampwidth) - 1
|
||
# scale current data to 8-bit data
|
||
val = val * scale_val / cur_lim
|
||
val = int(val + ((scale_val + 1) // 2)) & scale_val
|
||
array_str += "0x%02x, " % (val)
|
||
if (i + 1) % 16 == 0:
|
||
array_str += "\n\t"
|
||
return array_str
|
||
|
||
|
||
# PCM 数组合并
|
||
def gen_wave_table(wav_file_list, target_file_name, scale_bits=8):
|
||
with open(target_file_name, "w") as audio_table:
|
||
print('#include <stdio.h>', file=audio_table)
|
||
print("// time:{}".format(time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time()))), file=audio_table)
|
||
print('const unsigned char audio_table[] = {', file=audio_table)
|
||
for wav in wav_file_list:
|
||
print("processing: {}".format(wav))
|
||
print('//name:{}\n'.format(wav), file=audio_table)
|
||
print(get_wave_array_str(filename=wav, target_bits=scale_bits), file=audio_table)
|
||
print('};\n', file=audio_table)
|
||
print("Done...")
|
||
|
||
|
||
# 获取wav文件信息
|
||
def get_wave_info(filename):
|
||
wave_read = wave.open(filename, "r")
|
||
nchannels, sampwidth, framerate, nframes, comptype, compname = wave_read.getparams()
|
||
|
||
print('nchannels:{}'.format(nchannels))
|
||
print('sampwidth:{}'.format(sampwidth))
|
||
print('framerate:{}Hz'.format(framerate))
|
||
print('nframes:{}'.format(nframes))
|
||
print('comptype:{}'.format(comptype))
|
||
print('compname:{}'.format(compname))
|
||
return framerate
|
||
|
||
|
||
# 二进制文件转数组
|
||
def file2array(filename,h_filename=None):
|
||
path, name = os.path.split(filename)
|
||
if h_filename is None:
|
||
h_filename = os.path.join(path, name.split('.')[0] +'.h')
|
||
|
||
array_str = '\n//total len:{} bytes\n'.format(os.path.getsize(filename))
|
||
array_str += 'const unsigned char '+name.split('.')[0]+'[]={\n\t'
|
||
# print(array_str)
|
||
|
||
h_file = open(h_filename, "w")
|
||
file = open(filename, 'rb')
|
||
try:
|
||
while True:
|
||
chunk = file.read(16*32)
|
||
if not chunk:
|
||
break
|
||
|
||
for i in range(len(chunk)):
|
||
array_str += "0x%02x, " % (chunk[i])
|
||
if (i + 1) % 16 == 0:
|
||
array_str += "\n\t"
|
||
# print('get:{}'.format(binascii.b2a_hex(chunk)))
|
||
except:
|
||
print('read ERR')
|
||
finally:
|
||
print('read file done!')
|
||
array_str += '\n};\r\n'
|
||
# print('array='+array_str)
|
||
print(array_str, file=h_file)
|
||
|
||
h_file.close()
|
||
file.close()
|
||
return 0
|
||
|
||
|
||
|
||
# ffmpeg路径
|
||
ffpeg_path = 'D:/BouffaloLabWS/script_py/ffmpeg_4.3.2_full_build/bin'
|
||
|
||
# amr文件转MP3
|
||
def amr2mp3(amr_path,mp3_path=None):
|
||
path, name = os.path.split(amr_path)
|
||
if name.split('.')[-1]!='amr':
|
||
print('not a amr file')
|
||
return 0
|
||
if mp3_path is None or mp3_path.split('.')[-1]!='mp3':
|
||
mp3_path = os.path.join(path, name.split('.')[0] +'.mp3')
|
||
error = subprocess.run(['./ffmpeg.exe','-i',amr_path,mp3_path])
|
||
print('ERR:'+error)
|
||
if error:
|
||
return 0
|
||
print ('success')
|
||
return mp3_path
|
||
|
||
# wav文件转amr,wav必须为8000Hz
|
||
def wave2amr(wave_path,amr_path=None):
|
||
path, name = os.path.split(wave_path)
|
||
if name.split('.')[-1]!='wav':
|
||
print ('not a wave file')
|
||
return 0
|
||
if amr_path is None or amr_path.split('.')[-1]!='amr':
|
||
amr_path = os.path.join(path, name.split('.')[0] +'.amr')
|
||
error = subprocess.run(['ffmpeg','-i',wave_path,'-y',amr_path])
|
||
print('ERR:{}'.format(error))
|
||
if error:
|
||
return 0
|
||
print ('amr success')
|
||
return amr_path
|
||
|
||
# wav 格式化为8000Hz
|
||
def wave2Hz8000(wave_path,out_path=None):
|
||
path, name = os.path.split(wave_path)
|
||
if name.split('.')[-1]!='wav':
|
||
print ('not a wave file')
|
||
return 0
|
||
if out_path is None or wave_path.split('.')[-1]!='wav':
|
||
out_path = os.path.join(path, name.split('.')[0] +'_8k.wav')
|
||
error = subprocess.run(['ffmpeg.exe','-i',wave_path,'-ar','8000','-y',out_path])
|
||
#error = subprocess.run(ffpeg_path+'ffmpeg.exe'+' -i '+wave_path+' -ar 8000 -y '+out_path)
|
||
print('ERR:{}'.format(error))
|
||
if error:
|
||
return 0
|
||
print ('wav success')
|
||
print (out_path)
|
||
return out_path
|
||
|
||
# 将目录下所有wav文件转为amr，并转为对应的数组文件
|
||
if __name__ == '__main__':
|
||
print("Generating audio array...")
|
||
# wav_list = []
|
||
# for filename in os.listdir("./"):
|
||
# # print(os.getcwd())
|
||
# if filename.endswith(".wav"):
|
||
# print('src_name:',filename)
|
||
# framerate = get_wave_info(filename)
|
||
# if framerate != 8000:
|
||
# print('to 8000Hz')
|
||
# filename = wave2Hz8000(filename)
|
||
# print(filename)
|
||
|
||
# amr_file = wave2amr('fhm_onechannel_8k.wav')
|
||
# if amr_file!=0:
|
||
|
||
get_wav_make('fhm_onechannel_8k.wav')
|
||
wave2amr('fhm_onechannel_8k_10.wav')
|
||
file2array('fhm_onechannel_8k_10.wav')
|
||
|
||
# dst_name = "0_"+filename
|
||
# print('dst_name:',filename)
|
||
# os.rename(filename, dst_name)
|
||
# wav_list.append(filename)
|
||
# gen_wave_table(wav_file_list=wav_list, target_file_name="audio_example_file.h")
|
||
|
||
|