Efficient multimedia support in QtWebKit on Raspberry Pi (GStreamer Conference 2014)

Ozone is a wrapper that creates a unified platform interface at runtime, allowing Chromium to run on multiple platforms like Wayland and X11 from a single binary. Igalia has been working on Ozone support for Wayland since 2016, facing many challenges due to Wayland's restrictions, while the X11 support added more recently proved easier through refactoring. Overall, Ozone has proven to be a reasonable approach for Linux by providing a common interface while each platform still has specific implementation details.

The document discusses embedding Chromium into the Automotive Grade Linux (AGL) demo platform using the Web Application Manager (WAM). Currently, WAM and a modified version of Chromium from the LG WebOS project are used. Considering moving to use the Chromium Embedded Framework (CEF) instead, which could simplify keeping WAM and Chromium in sync with upstream changes. The proposed approach would adapt WAM to connect directly to CEF rather than a customized Chromium version.

By Julie Kim. Julie will be presenting the work that has been done over the last months to develop for the AGL platform a modern Chromium based Web Application Manager (WAM) that enables running HTML5 IVI applications on the system. These different applications can define specific levels of integration and security on the platform, and can be run seamlessly on different hardware architectures. Automotive Grade Linux All Member Meeting Japan 2019 March 5 - 6, 2019 Tokyo, Japan https://events.linuxfoundation.org/events/agl-all-member-meeting-japan/

This document discusses WebKitGtk+, an open source web engine used in many applications. It summarizes the history and architecture of WebKit, describes how WebKitGtk+ integrates with GNOME platforms, and outlines how to get involved with the WebKit community through contributing code, testing, or participating in discussions.

CEF (Chromium Embedded Framework) is a library based on Chromium that allows embedding the Chromium browser engine in other applications. It provides APIs to access browser features like loading web pages, JavaScript execution, and window management while handling processes and security. CEF can fulfill the customer's requirements like running a fullscreen kiosk browser, disabling file access, and supporting custom URL schemes and error pages. JavaScript execution and extension capabilities are provided to load required customer code. The size and performance is similar to Chromium. CEF remains in sync with Chromium releases while maintaining stable APIs.

By Philippe Normand. WPEWebKit[1] is a WebKit flavor (also known as port) specially crafted for embedded platforms and use-cases. During this talk I would present WPEWebKit's architecture with a special emphasis on its multimedia backend based on GStreamer[2] and implementing support for the MSE[3], EME[4], MediaCapabilities specifications. I would also present a case study on how to successfully integrate WPEWebKit on i.MX6 and i.MX8M platforms with the Cog[5] standalone reference web-app container or within existing Qt5 applications, using the WPEQt QML plugin. [1] https://wpewebkit.org [2] https://gstreamer.freedesktop.org [3] https://www.w3.org/TR/media-source/ [4] https://www.w3.org/TR/encrypted-media/ [5] https://github.com/Igalia/cog Linaro Connect San Diego 2019 September 23-27, 2019 https://connect.linaro.org/resources/san19/

This document discusses using GStreamer for HTML5 media playback in multiple WebKit ports. It outlines the architecture for HTML5 media playback in WebKit, describes how GStreamer is implemented as the media backend, and details the steps to port GStreamer support to additional WebKit platforms like Mac and Windows. It provides an overview of status and future plans to further integrate GStreamer and improve fullscreen video playback across WebKit applications.

This document provides instructions for implementing an Ozone backend using GTK on Chromium. It outlines the key entry points and classes that need to be implemented, including OzonePlatformGtk, GtkOzoneWindow, GtkScreen, and classes for the GPU side like SurfaceFactoryOzone and SurfaceOzoneCanvas. Implementing these classes and interfaces would allow Chromium to draw its content to a GTK window using the new Ozone/GTK backend.

The presentation discusses the development of a Vulkan driver named V3DV for the Raspberry Pi 4. It began development in November 2019 and has progressed from initial triangle rendering to supporting many Vulkan CTS tests and demos like Quake games. While the basic Vulkan 1.0 feature set is complete, there are still challenges around the linear display pipeline and optimizing usage of the texture filtering unit. Future plans include improving conformance, merging with Mesa, and exploring performance optimizations and additional features. External contributors are welcomed to help with testing, documentation, and implementing optional Vulkan aspects.

The document discusses merging the UIProcess and compositor in WebKit to simplify the architecture for using WebKit with Wayland. This removes the intermediate purpose of the UIProcess, reduces complexity, and enables simplifying the compositor. The UIProcess would become a shared library loaded by the compositor, which would show a single surface for the WebProcess. Hardware support, especially for the Wayland EGL platform, is a key requirement.

By Žan Doberšek. WebKit and its multi-process architecture might not seem suitable for embedded systems at first, but Wayland, the next-gen display system, has already proven itself by running efficiently on TVs, smartphones and single-board computers. This talk will present the techniques that were used to achieve efficient, hardware-accelerated rendering of Web content across the multiple processes of WebKit running under Wayland. Žan Doberšek will also share his experiences of deploying the two technologies on everyone's favorite mini-sized computer, the Raspberry Pi. He will also present and discuss further ideas and possible solutions for creating efficient and optimized Web content presentation systems specifically crafted for embedded systems like Smart TVs and in-vehicle infotainment by using Linux, Wayland and WebKit.

By Eleni Maria Stea. EXT_external_objects and EXT_external_objects_fd are groups of OpenGL extensions that allow OpenGL and Vulkan interoperability. When enabled, Vulkan allocated resources can be accessed and re-used by OpenGL. This talk is about the implementation of the extensions in various drivers, and some common interoperability use cases and examples that have been added to piglit. (c) X.Org Developers Conference (XDC) 2020 September 16-18 https://xdc2020.x.org https://www.youtube.com/channel/UCXlH5v1PkEhjzLFTUTm_U7g

Mario Sánchez Prada explains Igalia's work on several efforts around Chromium and the Web Platform at the 43rd International Conference on Software Engineering (ICSE 2021) Spanish Industry Case Studies Room May 23-29, 2021

This document summarizes a talk about writing native Linux desktop applications using JavaScript. It discusses using technologies like GJS, GTK, and Flatpak to build desktop apps with web development skills. It covers topics like build systems, assembling the UI, popular runtime libraries, writing the code, and distributing the finished app via Flathub. The talk uses a sample note-taking app called "Bloatpad" to demonstrate the process.

By Miguel Ángel Gómez. Browsers are the killer applications that many network device manufacturers need to embed in their products. However, there are many challenges that hinder the dream of building performant web browsers for low-cost devices. With the aim of making this dream a reality, at Igalia we have released WPE WebKit, a new WebKit Port optimized for Embedded platforms. WPE WebKit is designed with simplicity and performance in mind: a hardware accelerated fullscreen browser with multimedia support, as small (both in memory usage and disk space) and light as possible, and implementing the most relevant HTML APIs defined.WPE WebKit is now part of RDK and has been accepted upstream at webkit.org as a new official port of WebKit. We expect WPE WebKit to be deployed in millions of STB by the end of Q3. (c) IBC 2017 https://show.ibc.org/ibc-content-everywhere-hub-programme/wpe-a-new-webkit-port-optimized-for-embedded- 17-Sep-2017

A look into the current ways of displaying GStreamer videos in Gtk+ applications. Presented at GNOME Asia 2015

EpicLabs.io: We are sharing a reference architecture of how to build a video transcoding solution with a Raspberry Pi. #BeEpic!

OpenMAX is a series of interfaces that allow for better integration of media components. It includes three levels of interfaces: OpenMAX IL for connecting media components, OpenMAX AL for controlling media playback, and OpenMAX DL for defining basic media primitives. OpenMAX enables portable and flexible development of media applications across different hardware architectures.

The document provides an overview of OpenMAX-IL (OpenMAX Integrated Layer), which is a royalty-free, cross-platform API for accelerated multimedia components. It defines OpenMAX-IL entities like components, ports, and the core. Components have input/output ports and support non-tunneled or tunneled communication. The document describes component states, buffer handling, simple usage including tunnel setup, and state transitions for OpenMAX-IL.

An introduction to WebGL for OpenGL developers. Topics include current browser support - as of September 2011 - and JavaScript.

Presented as a pre-conference tutorial at the GPU Technology Conference in San Jose on September 20, 2010. Learn about NVIDIA's OpenGL 4.1 functionality available now on Fermi-based GPUs.

By Xabier Rodríguez Calvar. 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.

By Philippe Normand. This talk is about multimedia support in the WPE and GTK+ WebKit ports. I will give a status update about the HTML5 features currently supported by our GStreamer backend, such as WebRTC, MSE, MediaCapabilities support. The talk would also include a brief case study about using WPE and its Cog browser on IMX6 platforms. (c) GStreamer Conference 2018 CC-BY-SA 3.0 https://gstreamer.freedesktop.org/conference/2018/ https://gstconf.ubicast.tv/videos/multimedia-support-in-webkitgtk-and-wpe-current-status-and-plans/

This document discusses GStreamer support and integration in WebKit. It covers: 1. The current integration of GStreamer for HTML5 audio and video playback, as well as WebAudio. 2. Plans for next-generation video rendering using GstGL to leverage hardware acceleration. 3. Support for adaptive streaming using Media Source Extensions and Dash playback via GStreamer. 4. Encrypted media playback support via Encrypted Media Extensions for DRM protected content. 5. Progress on WebRTC integration for real-time communication capabilities.