<div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi Aurelin and All </blockquote><div> Thanks for your reply. I am replying on behalf of Pawan The output of gst-launch is as below. balakrishnan@bglldtw126:~/Bala/Work$ gst-launch-0.10 filesrc location=test_h264_aac.avi ! avidemux name=demux { qtmux name=mux ! filesink location=output.mp4 } { demux. ! queue ! audiopass ! mux. } { demux. ! queue ! videopass ! mux. } (gst-launch-0.10:18379): GLib-GObject-WARNING **: cannot register existing type `GstSignalProcessor' (gst-launch-0.10:18379): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed (gst-launch-0.10:18379): GLib-GObject-WARNING **: cannot retrieve class for invalid (unclassed) type `<invalid>' Setting pipeline to PAUSED ... Pipeline is PREROLLING ... Setting CapsSetting CapsPipeline is PREROLLED ... Setting pipeline to PLAYING ... New clock: GstSystemClock </div><div> So the pipeline goes into playing mode and is stuck in there. So at this instant the output.mp4 is 0 bytes in size However when i forcefully (ctrl C) terminate the pipeline the output.mp4 ( find attached with the mail) is 317 bytes in size which is of course not playable. I have attached the logs with the following option GST_DEBUG=qtmux:5,filesink:5,queue:5 Looking att that i feel the pipeline is somewhere stuck in the queue. the avidmux continuously runs with out any problems so have not taken the same. I have also attached the sources for audiopass and the videopass elements mentioned below. Please see the same and do let me know your observations Thanks Bala </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> ------------------------------ Message: 3 Date: Thu, 17 Sep 2009 09:27:59 +0200 From: Aurelien Grimaud <<a href="mailto:gstelzz@yahoo.fr">gstelzz@yahoo.fr</a>> Subject: Re: [gst-devel] Gstreamer pipeline to convert from avi to mp4 format !! To: Discussion of the development of GStreamer <<a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a>> Message-ID: <<a href="mailto:4AB1E4FF.3070909@yahoo.fr">4AB1E4FF.3070909@yahoo.fr</a>> Content-Type: text/plain; charset="iso-8859-1" Hi, Could you post the output of your gst-launch ? What does "does not write out any data" means ? Stuck in preroll ?, not negotiated ? Did you try to GST_DEBUG it ? Should give hints on what happens ... Aurelien Kumar, Pawan a ?crit : > > Hi All, > > I am looking for a Gstreamer pipeline to convert from avi to mp4 > format. Here mp4 should contain the same the elementary Audio and > Video streams as stored in avi. > > test_h264_aac.avi : (Video.h264, Audio.aac) -----------> > output_h264_aac.mp4 : (Video.h264, Audio.aac) > > So I do not want to decode the elementary streams and again encode > it back before mux-ing with the MP4 > > I tried with the below pipeline. > > gst-launch-0.10 filesrc location=test_h264_aac.avi ! avidemux > name=demux { qtmux name=mux ! filesink location=output.mp4 } { demux. > ! queue ! audiopass ! mux. } { demux. ! queue ! videopass ! mux. } > > Here audiopass, and videopass are gstreamer plugins, which pass > through the audio and video elementary streams as it. These elements > are used only for caps negotiation of the audio and video src pads of > AVI demuxer with the audio and video sink pads of the MP4 muxer. > > This pipeline does not write out any Data. > > Can somebody please suggest me a pipeline to do the conversion > mentioned above ? > > > Thanks, > /Pawan > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------------ > Come build with us! The BlackBerry&reg; Developer Conference in SF, CA > is the only developer event you need to attend this year. Jumpstart your > developing skills, take BlackBerry mobile applications to market and stay > ahead of the curve. Join us from November 9&#45;12, 2009. Register now&#33; > <a href="http://p.sf.net/sfu/devconf" target="_blank">http://p.sf.net/sfu/devconf</a> > ------------------------------------------------------------------------ > > _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> > <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> > -------------- next part -------------- An HTML attachment was scrubbed... </blockquote></div> -- - bala