<div dir="ltr"><div><div>Thank you Sebastian, </div>Your pipeline worked as expected. I have a bad feeling it might be an error in my 'need-data' signal from appsrc. I have filed a bug like you suggested : <a href="https://bugzilla.gnome.org/show_bug.cgi?id=712134">https://bugzilla.gnome.org/show_bug.cgi?id=712134</a> </div>For completeness I have attached my python script that reproduces the error if you are interested here. </div><div class="gmail_extra"> <div class="gmail_quote">On Mon, Nov 11, 2013 at 7:03 PM, Sebastian Dröge <<a href="mailto:sebastian@centricular.com" target="_blank">sebastian@centricular.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">On Mo, 2013-11-11 at 18:22 +1000, Dylan Broome wrote: > Hello, > > I am trying to port my application over to gstreamer 1.0, and rewriting it > in python using GObject Introspection. I have done this with success > however there is something that has changed that I just, simply, have no > idea where to start looking for the solution and I hope that someone here > can point me in the right direction. > > I am encoding video stream (from a rtspsrc) and a subtitle stream > (generated on the fly with appsrc) into a matroska container. I am using > the following launch line : > > matroskamux name=mux ! filesink name=sink rtspsrc name=videosrc ! queue > name=videoqueue ! rtph264depay name=depay ! h264parse name=decode ! mux. > appsrc name=appsrc caps=text/x-raw,format=utf8 stream-type=0 format=3 > is-live=true ! queue name=appqueue ! kateenc category=subtitles > name=kateenc ! mux. > > The problem is when I play this video back using my 0.10 application, the > subtitles were displayed. Two streams are encoded in the .mkv, a H-264 > video and subtitle/x-kate stream. When I play back the .mkv file using my > Gst 1.0 (1.2.0 to be specific) The subtitles are not displayed (Video is) > Upon inspection, vlc reports 2 steams, video and subtitle, and that the > codec for the subtitle stream has a codec of 'Undef'. Files generated by my > 0.10 application report the codec correctly as subtitle/x-kate. > > Ive tried setting caps between kateenc and matroskamux to no avail. > > Could this be something im missing with the new way Buffers (and the memory > within) are created? Maybe some meta-data? > > Any help would be greatly appreciated, Thank you. </div></div>I'm not aware of anything that has changed in that regard, I would consider this a bug. Can you report that at <a href="http://bugzilla.gnome.org" target="_blank">http://bugzilla.gnome.org</a> against GStreamer and include sample files? A file I created here with a test pipeline seems to work just fine (in GStreamer and VLC). This is the pipeline I used: > gst-launch-1.0 videotestsrc num-buffers=1000 ! x264enc ! h264parse ! matroskamux name=mux ! filesink location=test.mkv filesrc location=/some/test/subtitle/file ! subparse ! kateenc category=SUB ! mux. -- Sebastian Dröge <<a href="mailto:sebastian@centricular.com">sebastian@centricular.com</a>> Centricular Ltd - <a href="http://www.centricular.com" target="_blank">http://www.centricular.com</a> Expertise, Straight from the Source _______________________________________________ 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> </div>