Appsrc plugin is not registered on embedded platform

[Krzysztof Konopko]

Hi Tarek,

On 05/12/12 15:33, Tarek El-Sherbiny wrote:
> To verify that my application is linking to libgstapp I did the following:
> 
> #cat /proc/2017/maps        // 2017=My app PID
> 
> Output has:
> 2aab1000-2aabb000 r-xp 00000000 00:0d 1639505
>  /usr/lib/libgstapp-0.10.so.0.25.0
> 2aabb000-2aac3000 ---p 0000a000 00:0d 1639505
>  /usr/lib/libgstapp-0.10.so.0.25.0
> 2aac3000-2aac4000 rw-p 0000a000 00:0d 1639505
>  /usr/lib/libgstapp-0.10.so.0.25.0
> 
> I think I'm linking to the correct library.
>

Indeed, looks like your app is linked correctly.

> Can you please share the  config.log output file from your gst-plugins-base
> build?

I'm afraid I can't afford spending time on filtering config logs (my
client might be unhappy about publishing them) nor cross-compiling
GStreamer in isolation just to see the logs.

But instead, what in particular are you looking in gst-plugin-base
config.log?

Have your tried your app on PC to get the ARM platform out of the equation?

Can you run your app with GST_DEBUG=4 and see if something indicates a
failure to create appsrc element?

Kris

> Thanks
> Tarek
> 
> 
> On Wed, Dec 5, 2012 at 3:12 PM, Krzysztof Konopko <
> krzysztof.konopko at youview.com> wrote:
> 
>> PKG_CONFIG_PATH is an environment variable. It should point to a
>> directory containing *.pc files for a given platform/configuration.
>>
>> See man pkg-config.
>>
>> If you build your app manually then you have to set this variable
>> manually. Otherwise it depends on your build system.
>>
>> If you pass libraries directly with -l then don't bother with
>> pkg-config. Just make sure that -L points to the correct directory.
>>
>> You can also check whether your final binary has proper dependencies:
>> - on your host
>> # to make sure you're inspecting the right binary (see if it's a binary
>> for your target architecture)
>> file <your binary>
>> readelf -d <your binary> | grep libgstapp
>>
>> - on your target platform (if you have ldd available)
>> ldd <your binary | grep libgstapp
>>
>> Please bear in mind that I'm not saying that potentially missing
>> dependency on libgstapp is the cause of your problem. I'm not sure about
>> that. All I know is that my apps depend on it and they work with
>> appsrc/appsink on PC and embedded platform.
>>
>> Kris
>>
>> On 05/12/12 15:01, Tarek El-Sherbiny wrote:
>>> Hi Kris,
>>>
>>> This is what I'm passing to gcc:
>>>
>>> $(pkg-config --cflags --libs gstreamer-0.10 gstreamer-app-0.10)
>>> -lgstapp-0.10  -lgstinterfaces-0.10
>>>
>>> Is there a configuration option for seting up the PKG_CONFIG_PATH ?
>>>
>>> Thanks,
>>> Tarek
>>>
>>> On Wed, Dec 5, 2012 at 2:49 PM, Krzysztof Konopko <
>>> krzysztof.konopko at youview.com> wrote:
>>>
>>>> PKG_CONFIG_PATH
>>>
>>
>>
>