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摘要： 我在用php执行一段JAVA代码时，发现执行不了。I have just installed ffmpeg on ubuntu using this guide http://ubuntuforums.org/showthread.php?t=786095, when I execute the ffmpeg command shown below, it works fine in terminal and it works when I execute the php file I am using through the terminal by using the 'php 阅读全文