1. Red Door

    04:33

    from Michael Jones / Added

    18 Plays / / 0 Comments

    Messing around, making a mess.

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    • Time lapse and stabilising a sequence of images (GStreamer Conference 2011)

      49:08

      from Igalia / Added

      11 Plays / / 0 Comments

      By Guillaume Emont. Slides at http://www.slideshare.net/igalia/time-lapse-and-stabilising-a-sequence-of-images-gstreamer-conference-2011. The topic for this talk was encountered when trying to make a time lapse film with a camera attached to a tethered helium balloon high above. This talk will introduce the issues of stabilising a sequence of images. It will mainly focus on "discreet" sequences of images (time lapses, stop motion) but will have many bits relevant to more typical continous-ish videos. It will introduce some methods to solve that problem, and various benefits of having these methods in GStreamer, so that they are available to solve other related problems (such as following an object, movement detection, automated compositing or 3D reconstruction). Of course, there will be cool demos, hopefully featuring stunning aerial pictures getting transformed into a smooth video.

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      • WebKit, HTML5 media and GStreamer on multiple platforms (GStreamer Conference 2010)

        38:26

        from Igalia / Added

        9 Plays / / 0 Comments

        By Philippe Normand. Slides at http://www.slideshare.net/igalia/philippe-normand-html5-media-support-in-webkit-with-g-streamer. This talk will cover integrating a GStreamer-based media player in multiple WebKit ports to provide HTML5 audio/video support on a variety of platforms including (but not limited to) Linux, Mac OS X and Windows. It will describe the modifications done on the player first developed for the GTK+ WebKit port to be cross-platform and modular enough to be used by other ports such as WinCairo and the official Mac WebKit port. Other topics discussed will include the fullscreen video support implementation, a check-list explaining how to enable the GStreamer player for your WebKit port and a small HTML5 video showcase of the current WebKit ports supporting the GStreamer player.

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        • Playing in the sandbox - GStreamer security (GStreamer Conference 2012)

          33:03

          from Igalia / Added

          1 Play / / 0 Comments

          By Guillaume Emont. Slides at http://www.slideshare.net/igalia/playing-in-the-sandbox-gstreamer-security-gstreamer-conference-2012. GStreamer is a big and successful project that implements complex formats. We use it to read media streams that sometimes come from untrusted sources. The size and complexity of GStreamer and all the format implementations it brings means that the presence of security bugs in a media playback pipeline is not totally unlikely. An attacker could forge a stream that would exploit such a bug so that he can execute code of his making in the context where the exploited code was running. A common way to alleviate this kind of issue is to run the software handling untrusted data in a context where its privileges are very limited, so that a successful exploit of a bug in the software would only grant the attacker execution rights in that limited context. We call such a context a sandbox. I have run some experiments[1] with setuid-sandbox[2], a stand-alone version of the sandboxing system used by chrome on GNU/Linux, that shows the feasibility of running at least part of a pipeline in a sandbox. In this talk, I will explain this work[3], its limitations and discuss what can be done to improve on it.

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          • GStreamer and SysLink (GStreamer Conference 2011)

            31:35

            from Igalia / Added

            3 Plays / / 0 Comments

            By Víctor Jáquez. Slides at http://www.slideshare.net/igalia/gstreamer-and-syslink-gstreamer-conference-2011. SysLink is a multi-core Inter-Processor Communication (IPC) software stack, pushed by Texas Instrument, where the developers could take advantage of asymmetric multiprocessing with several heterogeneous processors running different instances of operating system, whether Linux or any other flavor of RT OS. In the realm of the multimedia processing, this mechanism offloads the CPU-intensive (de)codification tasks from the host processor, enhancing the user experience, particularly in embedded devices, where specialized processing units could be stored on SoCs. This talk will describe the main SysLink components (Linux kernel API, RCM modules, etc.) and how we could map those concepts into GStreamer elements, providing hardware accelerated multimedia, but without the burden of OpenMAX. The target SoC is the OMAP4 using a panda-board.

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            • Hacking in the real world: photography from above (FOSDEM 2012)

              16:01

              from Igalia / Added

              6 Plays / / 0 Comments

              By Guillaume Emont. Slides at http://www.slideshare.net/igalia/34-guillaume-emontfosdem2012fallback. This talk is about taking pictures from above with a big latex balloon, helium, strings, duct tape and CHDK, and making a nice video with the pictures using python, GStreamer and OpenCV. Some friends of mine and I got pretty busy last year on a crazy balloon photography project. I want to share that experience, say what worked (helium, CHDK, GStreamer) and what didn't (crazy kite-balloon ideas, arduino connectivity, and some other things, all due to a lack of time). Hopefully, that would motivate hackers to get out of their basement and go do cool things under the Sun. Links: - The project blog: http://balloonfreaks.mooo.com/blog/ - Stabilisation code: https://github.com/guijemont/GstStabilizer - Video recording: http://mirror.geeksoc.org/fosdem/2012/lightningtalks/Hacking_in_the_real_world.webm

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              • #homeautomation update: Whats new with Scarlett .. Voice Controlled Lights, Weather, USA vs UK Voice??

                00:32

                from Malcolm Jones / Added

                11 Plays / / 0 Comments

                Scarlett got a brand new bag! More info at: http://blacktonystark.tumblr.com/post/77017061517/im-back-ready-to-work-on-scarlett-new-features

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                • Cairosink and GPU Buffer Sharing (GStreamer Conference 2013)

                  29:39

                  from Igalia / Added

                  14 Plays / / 0 Comments

                  By Guillaume Emont. Slides at http://www.slideshare.net/igalia/cairosink. GStreamer 1.0 introduced a new architecture that makes memory management easier. In particular, handling non-system memory and sharing it between elements is made easier. While building a video sink for cairogles, Guillaume wanted to explore the possibility of sharing GPU memory (in his case, GL or GLES textures) between elements of a pipeline. In this talk, Guillaume will explain how he made the various parts fit together, and discuss the challenges that he has met and how he has worked on them.

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                  • WebKit and GStreamer (GStreamer Conference 2013)

                    34:15

                    from Igalia / Added

                    35 Plays / / 0 Comments

                    By Xabier Rodríguez Calvar. Slides at http://www.slideshare.net/igalia/webkit-and-gstreamer-gstreamer-conference-2013. WebKit is a well known open source browser engine used by Apple, GNOME, EFL, Blackberry and others and shares quite a big codebase with Blink. It was the result of a fork from KHTML and KJS. As a simplification we can say that it has three main layers, the API, the core and the backend. The different ports implement their API and their backends and the core is shared. WebKit 2 is robust and transparent multiprocess architecture allowing safer interactions with webpages. GStreamer is the multimedia backend of some WebKit ports and in this talk we will see its architecture, status, challenges and future.

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                    • Phonon Gstreamer en KDE

                      02:04

                      from Ernesto Acosta / Added

                      309 Plays / / 0 Comments

                      Video donde se muestra que hay que hacer para usar el Ecualizador, el Desvanecimiento de Sonido y un Analizador de Sonido en KDE con Amarok.

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