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GStreamer buffer flow analyzer

April 25, 2019 by Guillaume Desmottes  |   Blog

GStreamer's logging system is an incredibly powerful ally when debugging but it can sometimes be a bit daunting to dig through the massive amount of generated logs. I often find myself writing small scripts processing gst logs when debugging.

GStreamer buffer flow analyzer

Weston debugging and tracing on-the-fly

April 24, 2019 by Marius Vlad  |   Blog

The recent release of version 6 of the Weston compositor has brought with it the weston-debug protocol, a new feature that allows developers and users alike to display on-the-fly various debugging (logging) information generated by the compositor.

Weston debugging and tracing on-the-fly

Quick hack: git-pw

April 18, 2019 by Ezequiel Garcia  |   Blog

A well-known Linux kernel developer once said, a poor craftsman famously complains about his tools, but a good craftsman knows how to choose excellent tools. Here's a python-based tool that integrates git and patchwork, and can greatly improve your toolbox.

Quick hack: git-pw

An eBPF overview, part 2: Machine & bytecode

April 15, 2019 by Adrian Ratiu  |   Blog

The second part of this series takes a more in-depth look at the eBPF VM and program studied in the first part. Having this low level knowledge is not mandatory but can be a very useful foundation for the rest of the series.

An eBPF overview, part 2: Machine & bytecode

GStreamer support for the RIST Specification

April 09, 2019 by Nicolas Dufresne  |   News & Events

Collabora contributes elements implementing the RIST Simple Profile to GStreamer. This specification adds retransmissions to RTP streams in a way that it compatible with existing broadcast encoders and decoders.

GStreamer support for the RIST Specification

An eBPF overview, part 1: Introduction

April 05, 2019 by Adrian Ratiu  |   Blog

Interested in learning more about low-level specifics of the eBPF stack? Read on as we take a deep dive, from its VM mechanisms and tools, to running traces on remote, resource-constrained embedded devices.

An eBPF overview, part 1: Introduction

Running Android next to Wayland

April 01, 2019 by Robert Foss  |   Blog

It's now possible to run Android applications in the same graphical environment as regular Wayland Linux applications with full 3D acceleration. Here's a look at SPURV, our experimental containerized Android environment.

Running Android next to Wayland

Linaro Connect meets Panfrost

March 29, 2019 by Mark Filion  |   News & Events

Next week, Collaborans will be in Bangkok, Thailand, to participate in the 25th edition of Linaro Connect, a gathering of the world's leading open source engineers working on Arm. Tomeu Vizoso and Gustavo Padovan will be in attendance to present Panfrost.

Linaro Connect meets Panfrost

Modern USB gadget on Linux & how to integrate it with systemd (Part 2)

March 27, 2019 by Andrzej Pietrasiewicz  |   Blog

In the previous post I introduced you to the subject of USB gadgets implemented as machines running Linux. In this post, we look at how to implement your very own USB function with FunctionFS and how to integrate that with systemd.

Modern USB gadget on Linux & how to integrate it with systemd (Part 2)

Bootstraping a minimal Arch Linux image

March 20, 2019 by André Almeida  |   Blog

In this tutorial, we'll look at how to create a functional and simple Arch Linux virtual machine image, that can have network access, display graphical windows and share a folder with the host.

Bootstraping a minimal Arch Linux image

Introducing: Monado

March 18, 2019 by Jakob Bornecrantz  |   News & Events

Following the release of the OpenXR 0.90 Provisional Specification by The Khronos Group, Collabora is proud to announce Monado, an open source implementation of the newly released OpenXR spec.

Introducing: Monado

European R-Car Consortium Forum 2019

March 13, 2019 by Mark Filion  |   News & Events

Tomorrow, March 14, Collabora will be in Düsseldorf, Germany, to take part and exhibit at the second edition of the Renesas European R-Car Consortium Forum!

European R-Car Consortium Forum 2019

An introduction to Linux kernel initcalls

July 14, 2020 by Mylène Josserand  |   Blog

Initcalls, which serve to call functions during boot, were implemented early on in the development of the Linux Kernel. Read on as we take a closer look, including their purpose, their usage, ways to debug them (using initcall_debug or FTrace), and more.

An introduction to Linux kernel initcalls

Deep dive into OpenGL over DirectX layering

July 09, 2020 by Louis-Francis Ratté-Boulianne  |   Blog

Earlier this year, we announced a new project with Microsoft: the implementation of OpenCL & OpenGL to DirectX translation layers. Here's the latest on this work, including the steps taken to improve the performance of the OpenGL-On-D3D12 driver.

Deep dive into OpenGL over DirectX layering

Using syzkaller, part 4: Driver fuzzing

June 26, 2020 by Ricardo Cañuelo Navarro  |   Blog

Syzkaller is much needed tool for Linux kernel testing and debugging. With some work, it can also be enhanced to find bugs in specific drivers, such as V4L2. Here's how.

Using syzkaller, part 4: Driver fuzzing

Cross building Rust GStreamer plugins for the Raspberry Pi

June 23, 2020 by Guillaume Desmottes  |   Blog

Previously, we discussed about how Rust can be a great language for embedded programming. In this article, we'll explain an easy setup to cross build Rust code depending on system libraries, a common requirement when working on embedded systems.

Cross building Rust GStreamer plugins for the Raspberry Pi

Generating MPEG-DASH streams for Open Source adaptive streaming with GStreamer

June 12, 2020 by Stéphane Cerveau  |   Blog

Adaptive streaming is a technique to provide flexibility and scalability by offering variable bit-rate streams to the client. Here's a quick guide on how to generate a MPEG-DASH stream (the most completely adaptive streaming technique) using GStreamer.

Generating MPEG-DASH streams for Open Source adaptive streaming with GStreamer

Bifrost meets GNOME: Onward & upward to zero graphics blobs

June 05, 2020 by Alyssa Rosenzweig  |   Blog

With only free software, a Mali G31 chip can now run Wayland compositors with zero-copy graphics, including GNOME 3. We can run every scene in glmark2-es2, 3D games like Neverball can be played, and video players mpv and Kodi are now supported.

Bifrost meets GNOME: Onward & upward to zero graphics blobs

Using regmaps to make Linux drivers more generic

May 27, 2020 by Adrian Ratiu  |   Blog

Device drivers can support more revisions and SoC platforms by abstracting away specific hardware interface layouts. Let's examine a specific instance of this process, namely the effort to make the MIPI DSI host controller driver more generic.

Using regmaps to make Linux drivers more generic

Cross-compiling with gst-build and GStreamer

May 15, 2020 by Stéphane Cerveau  |   Blog

gst-build is one of the main build systems used by the community to develop the GStreamer platform. In my last blog post, I presented gst-build and explained how to get started with it. Now, let's get straight to the point regarding cross-compilation.

Cross-compiling with gst-build and GStreamer

Using syzkaller, part 3: Fuzzing your changes

May 12, 2020 by Andre Almeida  |   Blog

In part 2 of this series on syzkaller, we looked at how to install the tool and use it to improve our code base. Now, how does syzkaller report a bug it finds in the execution path of a system call? Let's add a new syscall description and see how it goes.

Using syzkaller, part 3: Fuzzing your changes

WirePlumber, the PipeWire session manager

May 07, 2020 by George Kiagiadakis  |   Blog

An in-depth look at WirePlumber, the modular and extensible session manager for PipeWire that brings advanced device management, policy control and security enforcement capabilities.

WirePlumber, the PipeWire session manager

Reducing the size of a Rust GStreamer plugin

April 28, 2020 by Guillaume Desmottes  |   Blog

With Rust gaining traction among the GStreamer community as an alternative to C to write applications and plugins, we began wondering, could the size of such Rust plugins be a problem for embedded systems?

Reducing the size of a Rust GStreamer plugin

From Bifrost to Panfrost - deep dive into the first render

April 23, 2020 by Alyssa Rosenzweig  |   Blog

The Panfrost project building a free, Open Source graphics driver for modern Mali GPUs has reached a new milestone: the first 3D render, including basic texture support, on a Bifrost chip (Mali G31)!

From Bifrost to Panfrost - deep dive into the first render

A team that grows together, builds together

September 27, 2022 by Kara Bembridge  |   News & Events

Adding a variety of expertise from across the globe, the departments of Core, Multimedia, Kernel, XR, People Operations, and DevOps now have more hands on deck. Discover a snapshot of our newest teammates!

A team that grows together, builds together

A busy, open source week in Dublin!

September 12, 2022 by Mark Filion  |   News & Events

Mere weeks after the debut of Open Source Summit Latin America, Dublin continues the collaborative momentum with the 2022 hybrid editions of Linux Plumbers Conference and Open Source Summit Europe!

A busy, open source week in Dublin!

Open source machine learning at IBC 2022

September 06, 2022 by Kara Bembridge  |   News & Events

Showcasing two new software demonstrations featuring machine learning, including backend video compression that runs on Panfrost, and a data quality assurance tool designed to integrate into the annotation pipeline.

Open source machine learning at IBC 2022

Last chance to submit to FOSS XR!

August 30, 2022 by Frédéric Plourde  |   News & Events

Be part of the FOSSXR lineup by submitting your talk by September 5th, 2022. That means there's one week left for all you AR and VR enthusiasts and industry movers to share your exciting XR projects/news/demos with the world.

Last chance to submit to FOSS XR!

Fostering connections at Open Source Summit Latin America

August 16, 2022 by Kara Bembridge  |   News & Events

A magnet for open source supporters, the very first edition of Open Source Summit Latin America is opening its virtual doors. This new annual conference takes place online from August 23 to 24 with 5 talks from Collabora's very own!

Fostering connections at Open Source Summit Latin America

Kernel 5.19: Probably the final release of the 5.x series

August 02, 2022 by Cristian Ciocaltea  |   News & Events

As usual, there are quite a few changes merged into the mainline kernel. Let's take a look at some of the contributions by Collabora's kernel team!

Kernel 5.19: Probably the final release of the 5.x series

Weston 10.0.1 - a bug-fix release

July 05, 2022 by Marius Vlad  |   News & Events

The latest release of Weston was made on February 1, 2022. Meanwhile, a few bugs were discovered and we decided to do a bug-fix release, which we haven't had in several years.

Weston 10.0.1 - a bug-fix release

Adding even more heads for the group picture

June 21, 2022 by Kara Bembridge  |   News & Events

Part steadfast approach - part welcoming spirirt; Collabora continues to successfully expand with new talent amply on deck. Well ahead of the remote work curve, our new joiners have settled into their roles from their respective corners of the planet.

Adding even more heads for the group picture

Emerging ideas at Open Source Summit North America

June 16, 2022 by Kara Bembridge  |   News & Events

Big events draw in an array of individuals to learn and connect, and the Open Source Summit North America is no exception. Jam-packed with sessions to uncover from June 21 to 24, this year's event features three talks by Collabora's very own!

Emerging ideas at Open Source Summit North America

Conformant open source support for Mali-G57

June 06, 2022 by Alyssa Rosenzweig  |   News & Events

Mali-G57 features in new MediaTek Chromebooks with the MT8192 and MT8195 system-on-chips. With Mesa 22.2 and an appropriate kernel, accelerated graphics will work out of the box on Linux on these laptops.

Conformant open source support for Mali-G57

Kernel 5.18: Milestones for the road ahead

June 02, 2022 by Dmitry Osipenko  |   News & Events

Released by Linus Torvalds on May 22 after a busy two-month development cycle, Linux kernel 5.18 brings new features and lights up new hardware. Let's take a look at the contributions made by our engineering team.

Kernel 5.18: Milestones for the road ahead

Finding the secret ingredient at Embedded and Kernel Recipes

May 26, 2022 by Kara Bembridge  |   News & Events

After a two-year hiatus, the City of Lights is shinning brightly again to welcome the community for a full week of engaging talks at Embedded Recipes and Kernel Recipes conferences.

Finding the secret ingredient at Embedded and Kernel Recipes

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