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Transcoding audio file from one format to another format using FFmpeg

  • Hello all,
    I want to trans code audio file from one format (mp4) to other format like (mp3). I am using ffmpeg open source library. i build the library for Qt and it get plugged with qt. i am able to access all its function.
    can someone tell me about transcending methods can someone tell me any example for this.
    i found something on net

    But i want to conversion from a particular format to a particular format. i also found some command line tools like ffmpeg.exe, but i dont want to use this . i want to write c++ code to do this task.
    can any one suggest me the best way.
    ffmpeg -i abc.mp4 -acodec mp3 output.mp3

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