By Joaquim Rocha. YouTube, Shoutcast, Last.fm or Jamendo are just some examples of the number of existing services offering media content nowadays. Users are now getting used to having these services available also from their usual applications. Unfortunately, to integrating these services in an application developers need to learn new technologies, with different APIs and protocols which means they end up writing specific solutions and replicating a lot of work. Grilo was created to solve this problem by providing a framework that abstracts the way to access media services and hides their specifications from developers. This minimizes the effort to integrate such services in applications letting the developers focus on their applications rather than in the services. In this talk, I will introduce Grilo, the problem it solves, the services it integrates so far, and give an overview of how to use Grilo in applications. If time allows, I will also show how a Grilo plugin looks like.

1. Grilo:
static void
_f_do_barnacle_install_properties(GObjectClass
*gobject_class)
{
GParamSpec *pspec;
Integration of Multimedia
Contents in Applications
Made Easy
/* Party code attribute */
pspec = g_param_spec_uint64
(F_DO_BARNACLE_CODE,
"Barnacle code.",
"Barnacle code",
0,
G_MAXUINT64,
G_MAXUINT64 /*
default value */,
G_PARAM_READABLE
| G_PARAM_WRITABLE |
G_PARAM_PRIVATE);
g_object_class_install_property (gobject_class,
Joaquim Rocha
jrocha@igalia.com
FOSDEM 2011
F_DO_BARNACLE_PROP_CODE,

2. Nowadays there is a
multimedia avalanche...
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

3. Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

4. Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

5. Challenges in
Media Integration:
* Homogeneous, integrated UX
* Easy to use
* Service scalability
* Decrease development and
maintenance effort
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

6. It should be a piece of
cake...
Creative Commons photo by hafizismail.com
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM
http://www.flickr.com/photos/freakdiver/1726189846 2010

7. Problems: Lots of...
* heterogeneous services
* APIs and protocols
* technologies
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

8. leading to:
* Individual efforts
* In-house/ad-hoc solutions
* Slow development
* Not scalable
* Expensive maintenance
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

9. You need something more effective...
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010
Creative Commons photo by inezzy
http://www.flickr.com/photos/definite_yes/4854174192/

10. Our proposal:
* Platform level solution for
accessing media contents
*Stop reinventing the wheel, start
reusing code
* Stop splitting efforts, collaborate!
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

11. The benefits:
* Reduce and share maintenance
effort
* Faster development
* Scalability
* Seamless support for more
services
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

12. Meet Grilo!
Creative Commons photo by Danforth1
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010
http://www.flickr.com/photos/reneenmagda/1424990010

13. Overview:
* Framework to access easily to multimedia content
* Provides a single API to access media content
* Hides differences in media services (APIs,
protocols, technologies, limitations, ...)
* Developers write their solution once and it works
with all services supported by Grilo
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

14. Grilo is NOT a media player!
Creative Commons photo by Eric J. Lubbers
http://www.flickr.com/photos/ericjlubbers/3408982736 2010
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM

15. Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

16. Demo
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

17. Grilo for app developers
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

18. Grilo plugins development
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

19. Resources:
Wiki:
http://live.gnome.org/Grilo
Git:
git://git.gnome.org/grilo
git://git.gnome.org/grilo-plugins
IRC:
#grilo @ GIMPNet
Mailing list:
http://mail.gnome.org/mailman/listinfo/grilo-list
Bugzilla:
http://bugzilla.gnome.org
(Category: Other, Product: Grilo)
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

20. Webpage:
http://live.gnome.org/OCRFeeder
git:
http://git.gnome.org/ocrfeeder
Bugzilla:
coming soon...
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

21. Thank you!
Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010