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Testing Video4Linux2 drivers like a boss

May 23, 2019 by Ezequiel Garcia  |   Blog

With virtme, you can run a custom built kernel on top of our running root filesystem. In this post, we explore another example of virtme in action, and see how to test Video4Linux2 drivers on bleeding edge GStreamer builds.

Testing Video4Linux2 drivers like a boss

Permissively-licensed MTP device implementation

May 16, 2019 by Andrzej Pietrasiewicz  |   Blog

Introducing cmtp-responder - a permissively licensed Media Transfer Protocol (MTP) responder implementation which allows embedded devices to provide MTP services and supports a core set of MTP operations.

Permissively-licensed MTP device implementation

An eBPF overview, part 5: Tracing user processes

May 14, 2019 by Adrian Ratiu  |   Blog

Up until now, talking in-depth about userspace tracing was deliberately avoided because it merits special treatment, hence this part devoted to it. We'll now look at the why of it, and we'll examine eBPF user tracing in two categories: static and dynamic.

An eBPF overview, part 5: Tracing user processes

Linux Kernel 5.1

May 09, 2019 by André Almeida  |   News & Events

Earlier this week, Linux Kernel 5.1 was released, and with it came over 13,000 commits from developers all around the world, including Collaborans. This time around, no less than 12 different developers contributed commits (64), sign-offs (111) & more.

Linux Kernel 5.1

CEF on Wayland upstreamed

May 08, 2019 by Santosh Mahto  |   Blog

After a successful team effort, the patch enabling the Chromium Embedded Framework (CEF) Ozone builds to run with different platform backends, such as Wayland, has finally landed upstream.

CEF on Wayland upstreamed

Collabora & GStreamer 1.16

May 06, 2019 by Aaron Boxer  |   News & Events

After a year-long development cycle, the much anticipated release was made available recently. With it came a number of exciting new features we're especially proud of, including per-element latency tracer and support for planar or non-interleaved audio.

Collabora & GStreamer 1.16

An eBPF overview, part 4: Working with embedded systems

May 06, 2019 by Adrian Ratiu  |   Blog

Now that we've studied the mainstream way of developing and using eBPF programs on top of the low-level VM mechanisms, we'll look at projects taking different approaches, attempting solutions to some of the unique problems faced by embedded Linux.

An eBPF overview, part 4: Working with embedded systems

Running Android and Wayland on embedded devices

May 02, 2019 by Robert Foss  |   Blog

A previous post introduced the SPURV Android compatibility layer for Wayland based Linux environment. In this post, we're going to dig into how you can run an Android application on the very common i.MX6 based Nitrogen6_MAX board.

Running Android and Wayland on embedded devices

An eBPF overview, part 3: Walking up the software stack

April 26, 2019 by Adrian Ratiu  |   Blog

In part 1 and 2 of this series, we took a condensed in-depth look at the eBPF VM. In part 3, we define the high-level components of an eBPF program, including the backend, loader, frontend and data structures.

An eBPF overview, part 3: Walking up the software stack

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

Landing a new syscall, part 1: What is futex?

February 08, 2022 by André Almeida  |   Blog

Over the past 18 months, we have been on a roller-coaster ride developing futex2, a new set of system calls. As part of this effort, the futex_waitv() syscall has now landed in Linux 5.16. But what exactly is futex?

Landing a new syscall, part 1: What is futex?

Writing an open source GPU driver - without the hardware

January 27, 2022 by Alyssa Rosenzweig  |   Blog

Until now, no Valhall devices (Mali-G57, Mali-G78) ran mainline Linux - whilst this made driver development obviously difficult, there’s no better time to write drivers than before the devices even get into the hands of end users.

Writing an open source GPU driver - without the hardware

A Pixel's Color & new documentation repository

January 25, 2022 by Pekka Paalanen  |   Blog

My work on Wayland and Weston color management and HDR support has been full of learning new concepts and terms. Many of them are crucial for understanding how color works, and what the values in a pixel actually mean.

A Pixel's Color & new documentation repository

Wine on Wayland year-end update: improved functionality & stability

December 22, 2021 by Alexandros Frantzis  |   Blog

It has been just over a year since we first announced our effort to implement a Wayland driver for Wine. Here's a recap of what has been done since then to improve both the functionality and stability of the driver.

Wine on Wayland year-end update: improved functionality & stability

Venus on QEMU: Enabling the new virtual Vulkan driver

November 26, 2021 by Antonio Caggiano  |   Blog

A step-by-step guide on how to enable 3D acceleration of Vulkan applications in QEMU through the new Venus experimental Vulkan driver for VirtIO-GPU with a local development environment.

Venus on QEMU: Enabling the new virtual Vulkan driver

Run your own CI pipeline with GStreamer's new monorepo

October 26, 2021 by Xavier Claessens  |   Blog

Maintaining a non-trivial set of GStreamer patches can be tricky. Thanks to the recent move to a single, unified git repo, you can now easily run a GStreamer continuous integration pipeline on your own GitLab instance. Here's how.

Run your own CI pipeline with GStreamer's new monorepo

Improving test coverage for cameras in KernelCI

October 08, 2021 by Nícolas F. R. A. Prado  |   Blog

Earlier this year, I joined Collabora as an intern to work on improving testing in libcamera and automating it through KernelCI. Having recently completed the internship, here's a look back at this experience and what was accomplished.

Improving test coverage for cameras in KernelCI

A tale of two toolchains and glibc

September 30, 2021 by Adrian Ratiu  |   Blog

With the LLVM toolchain seeing increasing development and adoption alongside the older, more established GNU toolchain, projects needing to support both, in particular the GNU C library (glibc), are facing challenges and questions.

A tale of two toolchains and glibc

An xrdesktop summer of code

September 10, 2021 by Lubosz Sarnecki  |   Blog

This summer, Christoph Haag and I had the pleasure of taking part in Google Summer of Code as mentors for xrdesktop, the Open Source project bringing the Linux desktop to VR on Valve's SteamVR & Monado. Here's what was accomplished.

An xrdesktop summer of code

Adding VP9 and MPEG2 stateless support in v4l2codecs for GStreamer

June 23, 2021 by Daniel Almeida  |   Blog

Earlier this year, from January to April 2021, I worked on adding support for stateless decoders for GStreamer as part of a multimedia internship at Collabora. Here's a recap of this completed work.

Adding VP9 and MPEG2 stateless support in v4l2codecs for GStreamer

Bag of Freebies for XR Hand Tracking: Machine Learning & OpenXR

June 17, 2021 by Marcus Edel  |   Blog

In our previous post, we presented a project backed by INVEST-AI which introduces a multi-stage neural network-based solution. Now let's dive into the machine learning details of our innovative, open source hand-tracking pipeline.

Bag of Freebies for XR Hand Tracking: Machine Learning & OpenXR

Testing cameras with lc-compliance on KernelCI

June 15, 2021 by Nícolas F. R. A. Prado  |   Blog

Initiated as a joint effort by the Google Chrome OS team and Collabora, the recent KernelCI hackfest brought the addition of new tests including the ability to detect regressions on the Linux kernel that can directly affect cameras.

Testing cameras with lc-compliance on KernelCI

Collabora & Linux Kernel 4.15

January 29, 2018 by Gustavo Padovan  |   News & Events

Linux Kernel 4.15 was released yesterday, and it once again contained patches contributed by Collabora, including bigger patchsets like V4L2 Explicit Synchronization and UTF-8 case insensitive lookups for EXT4.

Collabora & Linux Kernel 4.15

FOSDEM: Two days, a dozen talks!

January 26, 2018 by Mark Filion  |   News & Events

Brussels, here we come! We're thrilled to be sponsoring this year's edition of FOSDEM, taking place in just over a week's time (February 3 & 4), at the Université Libre de Bruxelles. Come say hello, or catch one of a dozen talks given by Collaborans!

FOSDEM: Two days, a dozen talks!

Outreachy - Round 15

December 19, 2017 by Mark Filion  |   News & Events

For a second time this year, Collabora is proud to be sponsoring the latest round (Round 15) of Outreachy internships! More specifically, Collabora has chosen to sponsor the Linux kernel projects for the December 2017 - March 2018 semester.

Outreachy - Round 15

12 reasons to join Collabora

December 14, 2017 by Jassie Badion  |   News & Events

With less than 12 days to go before Christmas, here are 12 reasons, from 12 different people who became Collaborans this year, on why you should consider joining our team!

12 reasons to join Collabora

Your partner in adopting SRT

November 28, 2017 by Mark Filion  |   News & Events

We're delighted to be one of the 33 new members of the Secure Reliable Transport (SRT) Alliance, a group dedicated to accelerating interoperability of video streaming solutions and fostering collaboration with industry leaders to achieve lower latency…

Your partner in adopting SRT

Capitole du Libre

November 16, 2017 by Mark Filion  |   News & Events

We're headed to France’s southern Occitanie region to attend and sponsor the 6th edition of Capitole du Libre, a weekend dedicated to free and Open Source software!

Capitole du Libre

Collabora & Linux Kernel 4.14

November 13, 2017 by Gabriel Krisman Bertazi  |   News & Events

Linux Kernel 4.14 is out, and once again Collabora developers were very active, contributing nearly 200 patches, reviews & sign-offs combined during this development cycle!

Collabora & Linux Kernel 4.14

Linux Developer Conference Brazil

November 10, 2017 by Mark Filion  |   News & Events

We're very excited to be sponsoring and speaking at the very first Linux Developer Conference Brazil, taking place on November 11 at the Instituto de Computação in Campinas!

Linux Developer Conference Brazil

European R-Car Consortium Forum

November 08, 2017 by Mark Filion  |   News & Events

On November 8, we'll be in Düsseldorf, Germany, to take part & exhibit at the 1st edition of the Renesas European R-Car Consortium Forum, a one-day event aimed at bringing together OEMs and Tier1s to discuss the future of car mobility.

European R-Car Consortium Forum

Embedded Linux Conference Europe

October 20, 2017 by Mark Filion  |   News & Events

Following a weekend at the GStreamer Conference, Collabora will be continuing its week-long stay in Prague by sponsoring, exhibiting and speaking at Embedded Linux Conference Europe 2017.

Embedded Linux Conference Europe

GStreamer Conference 2017

October 19, 2017 by Mark Filion  |   News & Events

We're thrilled to be once again a platinum sponsor of the annual GStreamer Conference, taking place this weekend (October 21 & 22) at Node5 in Prague, Czech Republic. Come say hello, or catch one of the five presentations given by Collaborans!

GStreamer Conference 2017

Embedded & Kernel Recipes

September 25, 2017 by Mark Filion  |   News & Events

This week, Collabora is heading to the city of lights, Paris, to sponsor and attend the very first (and sold-out!) edition of Embedded Recipes, as well as the 6th edition of Kernel Recipes!

Embedded & Kernel Recipes

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Upcoming Events

Here are the events we'll be attending in the coming weeks – come say hello!

Akademy

October 1-7, Barcelona, Spain

XDC + WineConf + FOSS XR

October 4-6, Minneapolis, MN, USA

Tracing Summit

October 11-13, London, UK

Khronos F2F

August 8-11, Phoenix, AZ, USA

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