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Integrating libcamera into PipeWire

September 11, 2020 by Raghavendra Rao  |   Blog

PipeWire continues to evolve with the recent integration of libcamera, a library to support complex cameras. In this blog post, I'll explain why libcamera exists, what it does, and how we integrated it in PipeWire.

Integrating libcamera into PipeWire

Pushing pixels to your Chromebook

August 31, 2020 by Emil Velikov  |   Blog

A high-level introduction of the Linux graphics stack, how it is used within ChromeOS, and the work done to improve software rendering (while simultaneously improving GPU rendering by reducing the boilerplate needed in applications).

Pushing pixels to your Chromebook

Using the Linux kernel's Case-insensitive feature in Ext4

August 27, 2020 by Gabriel Krisman Bertazi  |   Blog

Last year, a (controversial) feature was added to the Linux kernel to support optimized case-insensitive file name lookups in the Ext4 filesystem. Here's a look at why this was merged, what improvements have been made since, and how to put it to work.

Using the Linux kernel's Case-insensitive feature in Ext4

One week, two events: DebConf20 & Linux Plumbers Conference

August 24, 2020 by Mark Filion  |   News & Events

August ends on a high note with two virtual events this week: DebConf20, Debian's annual conference, and Linux Plumbers Conference, the premier event for developers working at all levels of the Linux kernel's plumbing layer and beyond.

One week, two events: DebConf20 & Linux Plumbers Conference

Panfrost performance counters with Perfetto

August 21, 2020 by Antonio Caggiano  |   Blog

We have now integrated Mali GPU hardware counters supported by Panfrost with Perfetto's tracing SDK, unlocking all-in-one graphics-aware profiling on Panfrost systems!

Panfrost performance counters with Perfetto

High bitrate video streaming with GStreamer's RTP elements

August 20, 2020 by Antonio Ospite  |   Blog

Key performance improvements and fixes to GStreamer's RTP stack have landed in GStreamer 1.18, due in the coming months. The latest enhancements provide an important boost in throughput, opening the gate to high bitrate video streaming.

High bitrate video streaming with GStreamer's RTP elements

Understanding computer vision & AI, part 1

August 13, 2020 by Marcus Edel  |   Blog

Following our recent presentation at OSSummit, many showed interest in learning more about solving real-world problems with computer vision. Here is a new blog series, on computer vision, object detection, and building a system on the edge.

Understanding computer vision & AI, part 1

Testing Weston DRM/KMS backends with virtme and VKMS

August 07, 2020 by Leandro Ribeiro  |   Blog

Recent work in Weston, the industry-standard Wayland compositor, has enabled DRM/KMS backends to be tested in the absence of real hardware, enabling more battle testing of corner-case and error conditions within automated testing frameworks.

Testing Weston DRM/KMS backends with virtme and VKMS

Kernel 5.8: Collabora's biggest & most significant contributions yet!

August 05, 2020 by Dafna Hirschfeld  |   News & Events

The ability for a relatively small software consultancy to contribute at this level demonstrates a fantastic improvement in vendors' mindset when it comes to working Open First and providing mainline support out-of-box as early as possible.

Kernel 5.8: Collabora's biggest & most significant contributions yet!

Lighthouse positional tracking in Monado with libsurvive

July 17, 2020 by Christoph Haag  |   News & Events

HTC Vive (Pro) and Valve Index hardware users can now experiment with positional tracking in Monado, thanks to the implementation of a libsurvive driver using the libsurvive library developed by Charles Lohr, David Berger and many contributors.

Lighthouse positional tracking in Monado with libsurvive

WirePlumber 0.3 released, now ready for the desktop

July 16, 2020 by George Kiagiadakis  |   News & Events

It is with great pleasure that we announce the availability of WirePlumber (the PipeWire session manager) version 0.3.0. This release brings support for desktop use cases and is a working drop-in replacement for PipeWire's example session manager.

WirePlumber 0.3 released, now ready for the desktop

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

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

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

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

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

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

Kernel 5.16: A new release for a new year

January 20, 2022 by André Almeida  |   News & Events

With kernel 5.16, the community has once again produced a release full of great features, including two projects that had been in development for some time by our kernel team: the new futex syscall and the new fanotify event.

Kernel 5.16: A new release for a new year

First up in 2022: linux.conf.au!

January 11, 2022 by Mark Filion  |   News & Events

The new year has only just begun, and already our first conference of 2022 is on the horizon. Join us at linux.conf.au, as we discuss bringing WebM Alpha support to GStreamer, and provide a status update on the futex2 syscall.

First up in 2022: linux.conf.au!

A growth year for upstream kernel contributions

December 22, 2021 by Gustavo Padovan  |   News & Events

With over 350 patches authored and nearly 200 reviewed and tested in multiple subsystems, 2021 was a great year for Linux kernel development at Collabora. Here is a look at some of our achievements during the year.

A growth year for upstream kernel contributions

Meet wxrd, a standalone Wayland compositor for xrdesktop

December 20, 2021 by Christoph Haag  |   News & Events

The Linux desktop in VR goes headless! Introducing wxrd, a standalone Wayland compositor for xrdesktop based on wlroots, with minimal dependencies.

Meet wxrd, a standalone Wayland compositor for xrdesktop

Open Source in Japan, virtually

December 08, 2021 by Mark Filion  |   News & Events

A year of online conferences that began with linux.conf.au will end on a high note next week as Collaborans present three talks at Open Source Summit Japan + Automotive Linux Summit 2021. Join us!

Open Source in Japan, virtually

Kernel 5.15: A small but mighty Halloween release

November 10, 2021 by Sebastian Reichel  |   News & Events

It might be smaller than the last few kernels, but with well above 10,000 non-merge changes, the latest Linux kernel release still packs a punch. Released on October 31, kernel 5.15 brings lots of exciting new features.

Kernel 5.15: A small but mighty Halloween release

WirePlumber in Fedora 35

November 02, 2021 by George Kiagiadakis  |   News & Events

Today marks a very exciting day as Fedora 35 has now been released, and with it comes WirePlumber as the default session manager for PipeWire! Under development by Collabora since 2019, WirePlumber has now entered the linux desktop space.

WirePlumber in Fedora 35

Open Source Summit + Embedded Linux Conference 2021

September 24, 2021 by Mark Filion  |   News & Events

Collaborans will be actively participating in next week's activities with seven talks on topics including Rust build scripts, embedded deep learning on GStreamer, HEVC decoding on mainline Linux, PipeWire and WirePlumber, and more.

Open Source Summit + Embedded Linux Conference 2021

Panfrost achieves OpenGL ES 3.1 conformance on Mali-G52

September 21, 2021 by Alyssa Rosenzweig  |   News & Events

This important milestone is a step forward for the open source driver, as it now certifies Panfrost for use in commercial products containing Mali G52 and paves the way for further conformance submissions on other Mali GPUs.

Panfrost achieves OpenGL ES 3.1 conformance on Mali-G52

Generate a minimal GStreamer build, tailored to your needs

September 16, 2021 by Stéphane Cerveau  |   News & Events

GStreamer can be tricky to ship in a constrained device. Thanks to a partnership with Huawei, you can now use gst-build to generate a minimal GStreamer build, tailored to a specific application, or set of applications. Here's how.

Generate a minimal GStreamer build, tailored to your needs

Kernel 5.14: 30 years in the making and still improving

September 07, 2021 by Nícolas F. R. A. Prado  |   News & Events

With an ever-increasing interest in more modern hardware support, and a more reliable kernel that is thoroughly tested, contributions by Collabora's developers continue to help make this a reality for the Linux kernel.

Kernel 5.14: 30 years in the making and still improving

Linaro Virtual Connect - Fall 2021

September 01, 2021 by Mark Filion  |   News & Events

September's busy conference schedule kicks off next week with the Fall edition of Linaro Virtual Connect. Join us as we look at how to master your PipeWire streams with WirePlumber, and de-mystify GFX virtualization with VirGL!

Linaro Virtual Connect - Fall 2021

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Upcoming Events

Here are the online events we'll be attending in the coming weeks – join us!

linux.conf.au 2022

14-16 January, Online

FOSDEM

5-6 February, Online

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