ffmpeg給出0大小的輸出文件

Question

我正在使用ffmpeg進行音頻轉換。我試圖將錄製的音頻轉換爲mp3格式。我得到了文件，但有0大小。任何人都可以幫我解決這個問題嗎？

這裏是我的代碼：

 Process ffmpegProcess; 
     string strInputFile; 
     string strOutputFile; 
     strInputFile = Page.MapPath("audio.wav"); 
     strOutputFile = Page.MapPath("audio.mp3"); 
     ffmpegProcess = new Process(); 

     string fileargs = " -i "; 
     fileargs += "\"" + strInputFile + "\""; 
     fileargs += " \"" + strOutputFile + "\""; 
     ffmpegProcess.StartInfo.Arguments = fileargs; 
     ffmpegProcess.StartInfo.FileName = Page.MapPath("ffmpeg.exe"); 
     ffmpegProcess.Start(); 

Answer 1

試試這個：

Process ffmpegProcess; 
    string strInputFile; 
    string strOutputFile; 
    strInputFile = Page.MapPath("audio.wav"); 
    strOutputFile = Page.MapPath("audio.mp3"); 
    ffmpegProcess = new Process(); 

    string fileargs = " -i "; 
    fileargs += "\"" + strInputFile + "\""; 
    fileargs += "-ab 192 -f mp3"; 
    fileargs += " \"" + strOutputFile + "\""; 
    ffmpegProcess.StartInfo.Arguments = fileargs; 
    ffmpegProcess.StartInfo.FileName = Page.MapPath("ffmpeg.exe"); 
    ffmpegProcess.Start();