Issues when trying to load static plugins

[Sebastian Dröge]

On Do, 2015-02-19 at 08:33 +0100, Mathieu Slabbinck wrote:
> Hi,
> 
> I'm having quite some troubles to load gstreamer in my application statically.
> 
> I've built gstreamer from the 1.4.5 source package.
> Configured with --enable-static --disable-shared --prefix=/somedir/gst_build
> 
> Then I've built gstreamer plugin base from the 1.4.5 source package.
> Configured with --enable-static --disable-shared
> --enable-static-plugins --enable-app --prefix=/somedir/gst_build
> 
> Now, when I run /somedir/gst_build/gst-inspect-1.0, it doesn't report
> much of installed plugins. Is this to be expected?
> gst_build/bin $ ./gst-inspect-1.0
> staticelements:  bin: Generic bin
> staticelements:  pipeline: Pipeline object
> Total count: 1 plugin, 2 features

You would have to link gst-inspect-1.0 with all static plugins that it
should show. Which kind of defeats the purpose of gst-inspect... but
that's what you want when using static plugins.

>Furthermore, I've read that static plugins of gstreamer should be
> loaded with GST_PLUGIN_STATIC_DECLARE & GST_PLUGIN_STATIC_REGISTER.
> 
> Using GST_PLUGIN_STATIC_DECLARE() in my c++ app seems to give no
> issues, but using the REGISTER call, that always returns an 'undefined
> reference to gst_plugin_PLUGINNAME_register()'
> I suspect this is related with gst-inspect not finding anything?

You have to additionally add the plugin libraries (e.g.
libgstvideoconvert.a) to the libraries that are linked into your
application.

> Can anyone tell me what I'm doing wrong or give me some pointers to a
> descent tutorial on how to build & link gstreamer statically?

Check the Android or iOS build systems, e.g. from the tutorials.

-- 
Sebastian Dröge, Centricular Ltd · http://www.centricular.com
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