GStreamer SDK – Preview release for Android

[cowwoc]

     What's the impact of static linking followed by dynamic linking as 
you mentioned? I assume from a legal/LGPL point of view, it's as if 
we're dynamically linking our application with GStreamer, correct?

Thanks,
Gili

On 05/10/2012 11:29 AM, Sebastian Dröge wrote:
> On Fr, 2012-10-05 at 11:05 -0400, cowwoc wrote:
>>      Okay, I'll bite :)
>>
>>       1. Is there any reason that your distribution only contains
>>          static library files? Do you plan on supporting *both* static
>>          and dynamic linking by November?
> These static libraries are linked into one large dynamic library that is
> then used by the Android application. This was done because Android has
> a limitation of 64 shared libraries per process, and you can easily hit
> that with all the libraries GStreamer and the plugins depend upon and
> the number of plugins.
>
> Dynamic linking is nonetheless possible and there will also be a
> zip/tarball with all the dynamic libraries and also the GStreamer tools
> like gst-launch, etc. This is mostly for debugging or if you want to do
> something really special. But for applications the supported way of
> using GStreamer on Android will be the static linking route that is also
> explained in the docs at docs.gstreamer.com (login as the test user to
> see them). Using this static linking is btw very convenient, we made as
> easy as possible. See this for more details:
> http://docs.gstreamer.com/display/GstSDK/Installing+for+Android
> +development
>
>
>>       1. Can you please add build instructions to the Android page? We
>>          should be able to build the SDK from source.
> It's done the same way as for the other platforms, you only additionally
> need to have the Android SDK and NDK and tell the build system where to
> find it. This is not documented yet though.
>
> Basically you need to get cerbero from
> http://cgit.freedesktop.org/gstreamer-sdk/cerbero/ and use the
> config/cross-android.cbc configuration file.
>
> You can find some more information on cerbero in general in the build
> from source section on
> http://docs.gstreamer.com/display/GstSDK/Installing+on
> +Linux#InstallingonLinux-buildfromsource
>
> More or less the same applies for Android too. This also provides an
> easy way for you to integrate other libraries and software to be used in
> your application.
>
>>       1. Do you plan on merging these changes into GStreamer's main
>>          repository, and main branch? I ask because all other platforms
>>          have been merged into GStreamer's main branch and it's not
>>          clear whether you plan on merging these in the future.
> Yes, all changes will be merged back upstream, including the new
> plugins.