Hi<br><div class="gmail_quote"></div><div class="gmail_quote"><br><div class="gmail_quote"><div class="im">On Mon, Nov 9, 2009 at 10:02 PM, Easwar Hariharan <span dir="ltr"><<a href="mailto:meindian523@gmail.com" target="_blank">meindian523@gmail.com</a>></span> wrote:<br> <blockquote class="gmail_quote" style="border-left:1px solid rgb(204, 204, 204);margin:0pt 0pt 0pt 0.8ex;padding-left:1ex"> 2009/11/9 Mallikarjun <<a href="mailto:mallik.v.arjun@gmail.com" target="_blank">mallik.v.arjun@gmail.com</a>>:<br> <div>> Dear friends,<br> > I have problem figuring out which library to install for ffmpeg to work<br> > with mp4 files,<br> > I can convert flv to avi, mp3 and all I wanted but not to/from mp4.<br> > I was able to do this in previous versions, and did a fresh install<br> > recently.</div></blockquote><div></div><div>mp4 is only a container format, the codec used to encode the video is what matters, container could be any of the available ones. Perhaps you do not have the right codecs. Usually mencoder can do all this very well, but ffmpeg is also very good as well. Checkout <a href="http://en.wikipedia.org/wiki/Mp4">http://en.wikipedia.org/wiki/Mp4</a> for the format.</div> <div></div><div>Moz </div></div></div></div>