strcpy(temp_filename,filename[*pSessNum]);
strtok(temp_filename,".");
strcpy(filename_sent[*pSessNum],temp_filename);
strcat(filename_sent[*pSessNum],"_sent.txt");
sigle_fp[*pSessNum]=fopen(filename_sent[*pSessNum],"wt");
//****system ffmpeg
//printf("I am enter here %s\n",filename_sent[*pSessNum]);
// printf("I am enter here %s\n",temp_filename);
strcpy(transfer_wav[*pSessNum],temp_filename);
//sprintf(transfer_wav[*pSessNum],"%s",temp_filename);
//printf("I am enter here %s\n",temp_filename);
strcat(transfer_wav[*pSessNum],"_mp4.wav");
//printf("I am enter here %s\n",temp_filename);
//sprintf(buffer, "del D:\\%s", filename);
//printf("I am enter here %s\n",transfer_wav[*pSessNum]);
sprintf(buffer,"ffmpeg.exe -i %s -vn -ar 16000 -ac 1 -ab 128 -y -f wav %s" ,filename[*pSessNum],transfer_wav[*pSessNum]);
// printf("I am enter here %s\n",buffer);
system(buffer); //这里要从d盘的目录删除输入的文件名
//****system ffmpeg
strtok(temp_filename,".");
strcpy(filename_sent[*pSessNum],temp_filename);
strcat(filename_sent[*pSessNum],"_sent.txt");
sigle_fp[*pSessNum]=fopen(filename_sent[*pSessNum],"wt");
//****system ffmpeg
//printf("I am enter here %s\n",filename_sent[*pSessNum]);
// printf("I am enter here %s\n",temp_filename);
strcpy(transfer_wav[*pSessNum],temp_filename);
//sprintf(transfer_wav[*pSessNum],"%s",temp_filename);
//printf("I am enter here %s\n",temp_filename);
strcat(transfer_wav[*pSessNum],"_mp4.wav");
//printf("I am enter here %s\n",temp_filename);
//sprintf(buffer, "del D:\\%s", filename);
//printf("I am enter here %s\n",transfer_wav[*pSessNum]);
sprintf(buffer,"ffmpeg.exe -i %s -vn -ar 16000 -ac 1 -ab 128 -y -f wav %s" ,filename[*pSessNum],transfer_wav[*pSessNum]);
// printf("I am enter here %s\n",buffer);
system(buffer); //这里要从d盘的目录删除输入的文件名
//****system ffmpeg