title: How to obtain titles and chapters information in DVD?
body: <p>I found many question about creating DVD menu using ffmpeg but i did not find any one about programmically access to DVD structure information. When i using libav (or FFmpeg) library i can open DVD image (iso file) and access to video, audio and subtitle streams. But i could not find any API.</p>
  
  <p>I can play video and found information using VLC player (and so libvlc library). But I need to do some processing on audio and subtitle stream programmically. I don't want to split VOBs using tools like SmartRipper, and only then do processing.</p>
  
  <p>Does libav(ffmpeg) contain any API for dealing with DVD menus? If not can you recommend any other library which can be used to obtain information about title(chapter) start and end time with one frame(sample, AVPacket) accuracy?</p>
  
  <p>I heard about libdvdnav library but i don't know if it right for me.
  I'm new to libav and DVD format internals.</p>