<html> <head> <style> P { margin:0px; padding:0px } body { FONT-SIZE: 10pt; FONT-FAMILY:Tahoma } </style> </head> <body> Thanks for all that info, that is VERY helpful!!!  I think I'm starting to understand the whole type-find thing now.. I'm making steady progress. Have a great week! ..ed.. > Date: Sun, 10 Jun 2007 10:36:29 +0200 > From: bilboed@gmail.com > To: edaverill@hotmail.com > Subject: Re: [gst-devel] pad_probe question > CC: gstreamer-devel@lists.sourceforge.net > > Hi, > > you might want to run gst-typefind-0.10 on that file to see what > kind of MIME type typefind thinks it is. decodebin will try to find a > demuxer,parser or decoder that can handle that MIME type and so forth. > You might also want to make sure, using "GST_DEBUG=decodebin:5 > gst-launch...", that decodebin is really using the elements you're > expecting it to use. > > On 6/8/07, Edward Averill <edaverill@hotmail.com> wrote: > > > > Ok, I'm terminally frustrated. > > > > I have an element that's trying to play nice with decodebin (yes, I posted a > > similar question before, but I have more details now). The element is a > > demuxer.. typefind works, the element loads, I parse the input file and then > > generate a NEWSEGMENT event to push out. Immediately on sending the > > NEWSEGMENT I see: > > > > decodebin gstdecodebin.c:664:pad_probe:<d> [00m Pad probe on pad > > <mydecoder0:src> but pad <mydecoder0:src> still needs data. > > That is normal. > > > > > The command line is: > > > > gst-launch filesrc location=/mytestfiles/test001.vid ! > > decodebin name=d d. ! myoverlaysink > > > > The pipeline proceeds to play, I don't see any error messages or warnings > > anywhere, yet the playback is garbled. > > If the playback is garbled, it means data is reaching your sink but > didn't go through the elements you expected. > > > > > Not using decodebin and specifying the pipeline explicitly, thus, works > > without garbled playback: > > > > gst-launch filesrc location=/mytestfiles/test001.vid ! > > mydemux name=q q. ! queue ! mydecoder ! myoverlaysink q. ! myaudiosink > > > > Does this possibly have something to do with the MIME type I'm returning > > from my demuxers typefind function? > > Yes, see the top of this mail. > > > I notice that qtdemux does NOT have a > > typefind, so past this point it's kind of useless as a template. > > If you want to see examples of typefinding, you can have a look at > gst-plugins-base/gst/typefind/gsttypefindfunctions.c or > gst-plugins-base/gst/subparse/gstsubparse.c . > Typefind functions are not part of elements, they're provided by > plugins. The reason why there isn't one in qtdemux is because most > typefind functions are contained in gsttypefindfunctions.c > > > > > All assistance appreciated before I tear out what's left of my hair. > > Gstreamer shall not be held responsible for any kind of hair loss :) > > Edward > > > > > ..ed.. > > > > > > ------------------------------------------------------------------------- > > This SF.net email is sponsored by DB2 Express > > Download DB2 Express C - the FREE version of DB2 express and take > > control of your XML. No limits. Just data. Click to get it now. > > http://sourceforge.net/powerbar/db2/ > > _______________________________________________ > > gstreamer-devel mailing list > > gstreamer-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel > > > > > > > -- > Edward Hervey > Multimedia editing developer / Fluendo S.A. > http://www.pitivi.org/ </body> </html>