Autopluggable Decryptor Element

[Sebastian Dröge]

On Do, 2014-02-13 at 01:41 -0800, MartinK wrote:
> Sebastian Dröge-3 wrote
> > On Mi, 2014-02-12 at 03:42 -0800, MartinK wrote:> Hi again Sebastian.> >
> > Thanks for your quick reply.> We are using a qml for our media player and
> > so we are constrained to use> gstreamer 0.10 at least for our first
> > release.> > Given that the decryptor produces output at the highest level,
> > i.e. mp4 or> avi, what caps string should I use to represent that?> Sorry
> > if that's a dumb question but I am not experienced in video formats. I>
> > assume I should set the caps in the static pad template for the src pad
> > and> that will suffice.The input (sinkpad) caps of the decryptor should be
> > some special capsthat only your element handles, e.g.
> > application/x-martins-encryption :)The output (srcpad) caps should be what
> > the typefinder tells you, e.g.video/quicktime for MP4.-- Sebastian Dröge,
> > Centricular Ltd - http://www.centricular.comExpertise, Straight from the
> > Source_______________________________________________gstreamer-devel
> > mailing list
> 
> > gstreamer-devel at .freedesktop
> 
> > http://lists.freedesktop.org/mailman/listinfo/gstreamer-develsignature.asc
> > (968 bytes)
> > <http://gstreamer-devel.966125.n4.nabble.com/attachment/4665219/0/signature.asc>
> 
> Thanks again for that.The problem though is that the
> gst_typefind_helper_for_buffer() function needs to be called in the
> decryptor's chain functionso it has a buffer to work with ; but the chain
> function never gets called because of the infinite pipeline building. It's a
> catch 22. Can you think of any way round that?Regards,   Martin.

Ah, what are the two pad templates of your element... especially the
caps of the pad templates?

-- 
Sebastian Dröge, Centricular Ltd - http://www.centricular.com
Expertise, Straight from the Source
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