[gst-devel] Adding plugins to gstreamer
neugens at limasoftware.net
Mon Apr 23 23:29:52 CEST 2007
Il giorno lun, 23/04/2007 alle 14.00 -0700, David Schleef ha scritto:
> On Mon, Apr 23, 2007 at 08:08:42PM +0200, Mario Torre wrote:
> > I have to add a new plugin to GStreamer. The plugin is a Source reader
> > (it reads from a java InoutStream).
> >  The location of the new plugin will not be the usual /usr/lib or
> > such
> Why not?
> If the element is something that is only useful in a program written
> in Java, it might be best to keep it inside the java bindings. The
> java bindings can initialize/register the element during initialization.
> The down side of doing it this way is that the element will not show
> up in gst-inspect.
Thanks for all the reply!
Maybe it's me doing something stupid, but I can't really use this
plugin... I guess I'm initializing it in the wrong way or something.
The plugin is called classpathsrc (innovative!). I have all the #define
in place (GST_TYPE_bla etc..), I also have all the needed functions used
by the plugin.
Then I do:
GST_BOILERPLATE (GstClasspathSrc, gst_classpath_src, GstBaseSrc,
_do_init (GstPlugin *plugin)
GST_DEBUG_CATEGORY_INIT (gst_classpath_src_debug, "classpathsrc",
0, "Classpath Src element");
return gst_element_register (plugin, "classpathsrc",
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, "classpathsrc",
"Java InputStream Reader", _do_init, "1.0",
"GPL + Classpath Exceptions", "Classpath",
Then I have gst_classpath_src_base_init and gst_classpath_src_class_init
defined (pretty much like the template plugin and the FileSrc do).
Now, I compile them, and get a libgstclasspathplugin.so.
No matter what I do, then, I cannot get this plugin to work. If I load
$ export GST_PLUGIN_PATH=/where/the/library/is
$ gst-inspect classpathsrc
No such element or plugin 'classpathsrc'
If I link to my test program, and call
gst_element_factory_make("classpathsrc", "fake element");
I get NULL...
Any help really appreciated :)
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