问题
I have a form where the admin can upload an mp3. Is it possible to use ffmpeg from PHP to convert that mp3 to wav when I process the form submission?
回答1:
Second google result: ffmpeg -i foo.mp3 -acodec pcm_s16le bar.wav. Wrap that with a shell_exec.
来源：https://stackoverflow.com/questions/15099921/how-to-convert-a-web-form-uploaded-mp3-to-wav-using-php-and-ffmpeg