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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

Improving the reliability of file system monitoring tools

March 14, 2022 by Gabriel Krisman Bertazi  |   Blog

Every file system used in production has tools to try to recover from system crashes. To provide a better infrastructure for those tools, our kernel team developed FAN_FS_ERROR, a new fanotify event which monitors error notifications.

Improving the reliability of file system monitoring tools

PipeWire: A year in review & a look ahead

March 08, 2022 by George Kiagiadakis  |   Blog

The PipeWire project made major strides over the past few years, bringing shiny new features, and paving the way for new possibilities in the Linux multimedia scene. A look what was accomplished in 2021, and what lies ahead for 2022.

PipeWire: A year in review & a look ahead

Landing a new syscall: 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: 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

EOSS - Recorded presentations (videos) now available

July 27, 2023 by Mark Filion  |   News & Events

If you weren't able to attend Embedded Open Source Summit in Prague last month, you're in luck as all presentations were recorded and are now available on YouTube.

EOSS - Recorded presentations (videos) now available

The next step for NVK: Merging into Mesa!

July 26, 2023 by Kara Bembridge  |   News & Events

After months of work, led by Collabora's own Faith Ekstrand, Red Hat's Karol Herbst, and numerous open source contributors, NVK is now considered ready to be merged into the main Mesa project.

The next step for NVK: Merging into Mesa!

A helping Arm for Panfrost

July 20, 2023 by Daniel Stone  |   News & Events

Collabora continues to relentlessly shift the needle to make high-quality open-source software not just an aspiration, but an expectation. We're pleased to announce an extension of our collaboration with Arm, providing more surety and capability for Panfrost.

A helping Arm for Panfrost

A weekend for developers

July 13, 2023 by Kara Bembridge  |   News & Events

With Black Valley in Norway, and Akademy in Greece, this weekend's plans are all set or computer enthusiasts! Collabora is proud to sponsor both of these events as a chance for communities to come together and strengthen their bonds.

A weekend for developers

Zink brings conformant OpenGL on Imagination GPUs

July 06, 2023 by Erik Faye-Lund  |   News & Events

Today, Imagination Technologies announced they are now using Zink for full OpenGL 4.6 support. This is the first time we've seen a hardware vendor trust Zink enough to completely side-step a native OpenGL driver and use it in a shipping product.

Zink brings conformant OpenGL on Imagination GPUs

Kernel 6.4: More work on MediaTek, Rockchip, and power supply

July 05, 2023 by Rogerio Alves Cardoso  |   News & Events

Released last week, Linux kernel 6.4 brings new features such as support for Intel LAM, user events for tracing, and the ability for the machine keyrings used for Machine Owner Keys to store only CA-enforced keys.

Kernel 6.4: More work on MediaTek, Rockchip, and power supply

NVK update: Enabling new extensions, conformance status & more

June 26, 2023 by Faith Ekstrand  |   News & Events

Looking back, it's amazing how much has happened in NVK in just the last 7 months. If development continues at this crazy pace, we may be looking at a pretty decent driver before too much longer.

NVK update: Enabling new extensions, conformance status & more

Ready to embark for Embedded Open Source Summit

June 22, 2023 by Kara Bembridge  |   News & Events

Taking place at the Prague Congress Centre from June 27 to 30, this new 4-day umbrella event brings multiple conferences, including Automotive Linux Summit (ALS) and Embedded Linux Conference (ELC), all under one roof.

Ready to embark for Embedded Open Source Summit

Making new strides at AWE

May 29, 2023 by Kara Bembridge  |   News & Events

Set in the heart of Silicon Valley, XR enthusiasts are eagerly awaiting to see the latest advancements on display at Augmented World Expo (AWE) 2023.

Making new strides at AWE

Weston 12.0: Highlights and changes for Wayland's reference compositor

May 25, 2023 by Marius Vlad  |   News & Events

Released last week, Weston 12.0 brings a number of highlights including two new backends, support for multiple scanout devices, and the addition of new protocol implementations. Here's a look at some of the changes that have landed in this new version.

Weston 12.0: Highlights and changes for Wayland's reference compositor

Kernel 6.3: MediaTek, Rockchip RK3588 & more

April 25, 2023 by Muhammad Usama Anjum  |   News & Events

Released earlier this week, Linux Kernel 6.3 brings thousands of new lines of code to improve the core kernel, architectural support, networking and filesystems.

Kernel 6.3: MediaTek, Rockchip RK3588 & more

April brings tech events aplenty

April 20, 2023 by Kara Bembridge  |   News & Events

Spring is in bloom in the northern hemisphere, and with it comes three tech events we'll be attending - PyCon US, Shell & Display Next Hackfest, and Linaro Connect!

April brings tech events aplenty

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

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