[gst-devel] GIT repositories

[Prajnashi S]

Some comments

On Sat, Mar 14, 2009 at 1:56 AM, Edward Hervey <bilboed at gmail.com> wrote:

>
> Hi all,
>
> * GIT repositories
>
>  I have finally taken time to cleanup my repositories and patches.
>
>  All the repositories are located here (the ones starting with
> android-) : http://cgit.freedesktop.org/~bilboed/<http://cgit.freedesktop.org/%7Ebilboed/>
>
>  These repositories share all the commits from the upstream official
> git repositories.
>  glib : git://git.gnome.org/preview/glib
>  liboil : git://anongit.freedesktop.org/git/liboil
>  gst* : git://anongit.freedesktop.org/git/gstreamer/gst*
>  build : git://android.git.kernel.org/platform/build.git
>
>  This makes it much easier to 'rebase' the android patches against a
> newer release or commit.
>
>  These repositories only contain, so far, the patches that were on the
> google groups site. I splitted them up into individual commits, in order
> to make it easier to push upstream what can be pushed upstream and leave
> alone what can't be pushed upstream.
>
>  I have also modified the makefiles so that you no longer need to put
> them in a subdirectory in external, but directly in external (like all
> the other external projects).
>
>  To check them out (once you've already checked out the full build
> system and done repo sync), do the following:
>
> $ cd external/
> $ for i in glib liboil gstreamer gst-plugins-base gst-plugins-good
> gst-plugins-bad; do git clone
> git://anongit.freedesktop.org/~bilboed/android-$i<http://anongit.freedesktop.org/%7Ebilboed/android-$i>$i; done
>
>  I have also got a 'build' repository, currently containing the prelink
> patch.
>  You can check it out as follow:
>

> $ cd build/
> $ git remote add fdo
> git://anongit.freedesktop.org/~bilboed/android-build<http://anongit.freedesktop.org/%7Ebilboed/android-build>
> $ git checkout -b gst fdo/master
>

>  From that point on, just build android as you normally would and it
> will build/install the libraries/plugins.
>
>
> * Auto-generated .c/.h files
>
>  Apart from the Android.mk files, the only thing required to compile
> several libraries/plugins are files that are generated by the standard
> autotools system at build/dist time.
>
>  We have been thinking lately with Zaheer (who ported gstreamer to S60
> [1]) that we should have a common location for all the .c/.h files
> generated at build/dist time.
>  Currently we have some files for the win32 build system in win32/, but
> we need to make this more generic. Maybe have a generated/ directory in
> GStreamer containing those files.
>  This could help solve a big chunk of the non-standard build systems.
>
[Prajnashi S]
Good. This is also a pain for me.

I want to know how community handle above c/h in win release?
Do they re-generate these files?


>
> * plugins are not libraries
>
>  All the plugins are currently using the build/core/shared_library.mk
> makefile ... which results in those libraries ending up in /system/lib
> in the target.
>  This is painful for many reasons. Plugins aren't 'standard' shared
> libraries:
>  * They don't need to be prelinked
>  * They are not imported at link time
>  * When scanning for plugins (with GST_PLUGIN_PATH=/system/lib), we end
> up with a *lot* of non-plugins. They should be in a separate directory,
> like /system/gst-plugins.
>
>  I'm currently investigating a modification to the build/ system to add
> the notion of plugins so that we can just use 'plugin.mk' in every
> plugin directory and have the problems above solved. I'll keep you
> updated on this progress and will push it to my android-build git
> repository.
>
>
> * android-gst manifest
>
>  The only thing left to bring everything together is to setup a
> manifest specifying all the afore-mentionned git repositories/branches.
>  I'll look into it.
>
>
> * It runs on the G1
>
>  Yes, setup the build system as you would for the G1 [2], checkout the
> repositories/branches mentionned above, run 'make' from the toplevel
> directory and then flash your phone with it... and it works :)
>
>
> * Comments and feedback...
>
>  ... are most welcome as usual !
>
>    Edward
>
> [1] http://zaheer.merali.org/articles/2009/03/11/gstreamer-port-to-s60/
> [2] http://source.android.com/documentation/building-for-dream
>
>
> On Wed, 2009-03-04 at 23:17 -0800, bilboed wrote:
> > Hi all,
> >
> >   I've been using the various patches to build GStreamer for Android
> > on the emulator and also on a dev G1 phone and it works great !
> >
> >   I've cleaned/splitted up the various patches into smaller commits in
> > git repositories I have locally.
> >
> >   What I can do is push upstream the various commits that can actually
> > go upstream (like the parts to make libiconv/gettext optional for
> > glib).
> >
> >   Then ideally, we should create some 'public' git repositories to
> > easily integrate all of this in a android build. There are many free
> > git hosting places available to host that (github, gitorious, or we
> > could even have those repositories at freedesktop alongside the
> > official gstreamer repositories !). But in the long run, we should
> > make this as easy as 'repo init -u <gstreamer-manifest-file> && make'.
> >
> >   I'll try to put my repositories online as soon as possible.
> >
> >   The easier we make it for people to try/use a gstreamer-based
> > android, the better it will be for us all (more feedback, more
> > contributors, maybe even tempting some companies to switch to
> > gstreamer for Android?)
> >
> >   Comments welcome,
> >
> >    Edward
> >
> > P.S. For those wondering, I'm one of the GStreamer developers,
> > therefore very interested to push this as hard as possible :)
> > >
>
>
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-- 
-- Prajnashi S
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