title: How can I analyze file and detect if the file is in H.264 video format?
body: <p>I write software C/C++ to recover deleted files, and I need to identify files according to their binary content, so my question is there a simple way to know if a particular file is H.264 format video? is H.264 has an signature?</p>
  
  <p>I saw the code of FFMPEG <a href="https://github.com/FFmpeg/FFmpeg/blob/master/libavformat/avc.c#L27" rel="nofollow">here</a>, but can it help me, how?</p>