使用python和ffmpeg制作的音频文件分割程序

import subprocess import sys import os import ffmpeg from PyQt5.QtCore import * from PyQt5.QtGui import * from PyQt5.QtWidgets import * from qss_read import QssRead class mm_win(QWidget): def __init__(self): super().__init__() self.initUI() def initUI(self): """初始化UI""" self.qssfile1="M03_musicconvert_pro2023/qss_main_style_audiosplit.qss" self.qss1=QssRead.readQSS(self.qssfile1) self.btn1=QPushButton('载入音频',self) self.btn1.setGeometry(40,40,80,40) self.btn1.clicked.connect(self.audio_load) self.lbl10=QLabel(self) self.lbl10.setGeometry(160,20,80,20) self.lbl10.setText('源音频路径：') self.lbl1=QLabel(self) self.lbl1.setGeometry(160,40,200,20) self.lbl1.setText('') self.lbl2=QLabel(self) self.lbl2.setGeometry(40,100,80,20) self.lbl2.setText("源音频信息：") self.src_music_list=QListWidget(self) self.src_music_list.setGeometry(40,130,200,120) self.lbl3=QLabel(self) self.lbl3.setGeometry(300,80,60,20) self.lbl3.setText("开始时间") self.qlt1=QLineEdit(self) self.qlt1.setGeometry(300,120,60,20) self.lbl5=QLabel(self) self.lbl5.setGeometry(362,120,15,20) self.lbl5.setText('秒') self.lbl4=QLabel(self) self.lbl4.setGeometry(400,80,60,20) self.lbl4.setText("持续时间") self.qlt2=QLineEdit(self) self.qlt2.setGeometry(400,120,60,20) self.lbl6=QLabel(self) self.lbl6.setGeometry(462,120,15,20) self.lbl6.setText('秒') self.btn2=QPushButton('开始分割',self) self.btn2.setGeometry(400,160,60,40) self.btn2.clicked.connect(self.audio_split) self.lbl11=QLabel(self) self.lbl11.setGeometry(400,210,80,20) self.lbl11.setText('目标音频路径：') self.lbl7=QLabel(self) self.lbl7.setGeometry(400,230,200,20) self.lbl7.setText('') self.setWindowTitle('音频格式转换') self.setGeometry(100,100,700,400) self.setWindowIcon(QIcon('M03_musicconvert_pro2023\\CoDeSys.ico')) self.setStyleSheet(self.qss1) self.show() def audio_load(self): """音频载入""" self.filename1,_=QFileDialog.getOpenFileName(self,'选择文件','C:/',"Allfile(*);;txt(*.txt)") #self.filepath1=os.path.dirname(self.filename1) self.filepath1="C:/Users/rongjv/Desktop/" print(self.filepath1) if self.filename1: self.lbl1.setText(self.filename1) self.audio_info(self.filename1) else: QMessageBox.about(self,'tip','文件不存在') def audio_info(self,filename): """获取音频信息""" probe=ffmpeg.probe(filename) print(probe) format=probe['format'] stream=probe['streams'][0] #print(format) audio_time=format['duration'] audio_byte=str(int(format['size'])/1024/1024) audio_rate=stream['bit_rate'] audio_rate2=float(audio_rate)/1000 audio_name=format['filename'] audio_geshi=format['format_name'] name1=audio_name.split('/') name2=name1[len(name1)-1] name3='曲名：%s'%name2 self.musciname=name2.split('.')[0] geshi1='格式：%s'%audio_geshi self.geshi2=audio_geshi dura=float(audio_time) dura2='时长：%6.6s 秒'%dura size1='大小: %5.4s MB'%audio_byte rate1='比特率: %s kb'%audio_rate2 #添加到列表显示 self.src_music_list.clear() self.src_music_list.addItems([name3,geshi1,dura2,size1,rate1]) def audio_split(self): """音频分割""" src_audio_name=self.filename1 start_time=self.qlt1.text() dura_time=self.qlt2.text() des_audio_name=self.filepath1+start_time+'_'+dura_time+'.'+self.geshi2 self.des_filepath1=des_audio_name cmdtxt=['ffmpeg','-i',src_audio_name,'-vn','-acodec','copy','-ss',start_time,'-t',dura_time,des_audio_name] self.ffmpeg_cmd_exec(cmdtxt) def ffmpeg_cmd_exec(self,cmdtxt): """ffmpeg指令执行""" pp=subprocess.Popen(cmdtxt,shell=True,stdout=subprocess.PIPE,stderr=subprocess.STDOUT,encoding='utf-8',text=True) for line in pp.stdout: print(line) QMessageBox.about(self,'tip','分割完成') self.lbl7.setText(self.des_filepath1) if __name__ =='__main__': app=QApplication(sys.argv) mw1=mm_win() sys.exit(app.exec_())