Hi Michael Smith, I have to develop parser and decoder aac also and i need to play the files in movie player. In movie player query duration is getting called frequent so if i update the duration during playing the file , total duration will be changing when bitrate changes. Thats i have a confusion like when to update the duration for VBR streams. Regards, Vijay P <div class="gmail_quote">On Wed, Nov 9, 2011 at 4:13 AM, Michael Smith <<a href="mailto:msmith@xiph.org">msmith@xiph.org</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">GStreamer already has a very well debugged and high quality mp3 parser. You should use that. If you have a reason to use a separate decoder, then that's fine - but don't rewrite the parser. Mike <div><div class="h5"> On Tue, Nov 8, 2011 at 8:44 AM, vijay <<a href="mailto:pvijaii@gmail.com">pvijaii@gmail.com</a>> wrote: > Hi, > I am writing mp3 parser and decoder plugin. > In case of VBR stream if duration is not there in id3 how to set the > duration > > Do i need to parse the file till end of the stream and to calculate the > duration using average bit rate? > > or > > Can we able to set the duration while playing by getting the bitrate for > each frame? > > Regards, > Vijay P > </div></div>> _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> > <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> > > _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </blockquote></div>