Newbie query: Boilerplate code created by gst-element-maker does not compile

[Mandeep Sandhu]

On Wed, Oct 31, 2012 at 5:40 PM, Atish Nazir
<gstreamer at littleworld.co.uk> wrote:
> You can drop files into the plugin directory and they'll be picked up.  On
> my Xubuntu for example:
>
> /usr/lib/x86_64-linux-gnu/gstreamer-0.10/
>
> However IMHO using environment variable GST_PLUGIN_PATH to override the
> search path is a better thing to do during development.

Thats exactly what I did (as the docs too mention the same). However,
it still can't find my plugin! :/

...and I'm trying with gstreamer-0.10 (that comes with Ubuntu 12.10).

Neither gst-inspect nor gst-launch work.

Another thing I tried was to explicitly mention the path to the plugin
lib to the gst-launch command:

$ gst-launch-0.10 -v
--gst-plugin-path=/home/mandeep/work/gstreamer/gst-template/gst-plugin/src/.libs/
fakesrc ! myfilter ! fakesink silent=TRUE
WARNING: erroneous pipeline: no element "myfilter"
$

However, this too doesn't work.

Thanks,
-mandeep


> On 31 October 2012 10:55, Mandeep Sandhu <mandeepsandhu.chd at gmail.com>
> wrote:
>>
>> Anyone?
>>
>> How does one make an existing gstreamer package (installed in Ubuntu
>> 12.10) recognize/register a custom plugin?
>>
>> Thanks,
>> -mandeep
>>
>>
>> On Mon, Oct 29, 2012 at 7:13 PM, Mandeep Sandhu
>> <mandeepsandhu.chd at gmail.com> wrote:
>> > Hi All,
>> >
>> > I'm newbie who's recently jumped into playing around with GStreamer.
>> >
>> > I have gone through "GStreamer Application Development Manual" to get
>> > a basic idea of the various Gstreamer concepts. Currently, I'm reading
>> > the "GStreamer Plugin Writer's Guide (1.0.2)" to get a very basic
>> > plugin working (only for my own understanding).
>> >
>> > For creating the basic template of a plugin, I was using the
>> > "make_element" tool which comes along with the gst-template repo.
>> >
>> > The template code created by this tool compiles fine, however it does
>> > not get recognized when I try to use it a sample pipeline. I construct
>> > the pipline as follows (after building the plugin):
>> >
>> > $ gst-launch-0.10 -v
>> >
>> > --gst-plugin-path=/home/mandeep/work/gstreamer/gst-template/gst-plugin/src/.libs/
>> > fakesrc ! myfilter ! fakesink silent=TRUE
>> > WARNING: erroneous pipeline: no element "myfilter"
>> > $
>> >
>> > Somehow, my plugin is not 'registered' with gstreamer. Any idea how to
>> > get this working?
>> >
>> > The plugin guide has a "NOTE" that states one should use
>> > "gst-element-maker" from the gst-plugins-bad repo. However, the
>> > template code created by this tool does not compile. Here's what I
>> > did:
>> >
>> > $ gst-element-maker MyFilter basesink
>> > ../../../gst-plugins-bad/tools/gst-element-maker: 376:
>> > ../../../gst-plugins-bad/tools/gst-element-maker: gst-indent: not
>> > found
>> > pkg is gstreamer-base-0.10
>> > gstmyfilter.c: In function ‘gst_myfilter_base_init’:
>> > gstmyfilter.c:109:3: warning: implicit declaration of function
>> > ‘gst_element_class_set_static_metadata’
>> > [-Wimplicit-function-declaration]
>> > gstmyfilter.c: At top level:
>> > gstmyfilter.c:324:1: error: ‘myfilter’ undeclared here (not in a
>> > function)
>> >
>> > Any idea how to fix this error?
>> >
>> > The files generated by the above command are: gstmyfilter.h and
>> > gstmyfilter.c (I have altered Makefile.am accordingly to add these 2
>> > new files for building.
>> >
>> > Regards,
>> > -mandeep
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>
>
>
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