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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

Building a Board Farm for Embedded World

June 27, 2024 by Christopher Obbard  |   Blog

With each board running a mainline-first Linux software stack and tested in a CI loop with the LAVA test framework, the Farm showcased Collabora's recent hardware enablement and Continuous integration (CI) efforts.

Building a Board Farm for Embedded World

Smart audio filters with WirePlumber 0.5

June 26, 2024 by Julian Bouzas  |   Blog

WirePlumber 0.5 arrived recently with many new and essential features including the Smart Filter Policy, enabling audio filters to automatically insert themselves in between client streams and devices.

Smart audio filters with WirePlumber 0.5

The latest on cmtp-responder, a permissively-licensed MTP responder implementation

June 12, 2024 by Andrzej Pietrasiewicz  |   Blog

Part 3 of the cmtp-responder series with a focus on USB gadgets explores several new elements including a unified build environment with Docker and an example strategy for building and deploying to a target.

The latest on cmtp-responder, a permissively-licensed MTP responder implementation

A roadmap for VirtIO Video on ChromeOS: part 3

June 06, 2024 by Daniel Almeida  |   Blog

The final installment of a series explaining how Collabora is helping shape the video virtualization story for Chromebooks with a focus on the future plans for cros-libva and cros-codecs.

A roadmap for VirtIO Video on ChromeOS: part 3

Hacking on the PipeWire GStreamer elements

June 05, 2024 by George Kiagiadakis  |   Blog

Last week I attended the GStreamer spring hackfest in Thessaloniki to work on the PipeWire GStreamer elements and connect with the community.

Hacking on the PipeWire GStreamer elements

Transforming speech technology with WhisperLive

May 28, 2024 by Kara Bembridge  |   Blog

The world of AI has made leaps and bounds from what It once was, but there are still some adjustments required for the optimal outcome. With the help of WhisperLive, VoxAI was able to improve its response time and oratory abilities.

Transforming speech technology with WhisperLive

Re-converging control flow on NVIDIA GPUs - What went wrong, and how we fixed it

April 25, 2024 by Faith Ekstrand  |   Blog

While I managed to land support for two extensions, implementing control flow re-convergence in NVK did not go as planned. This is the story of what went wrong and how we fixed it.

Re-converging control flow on NVIDIA GPUs - What went wrong, and how we fixed it

Automatic regression handling and reporting for the Linux Kernel

March 14, 2024 by Ricardo Cañuelo Navarro  |   Blog

In continuation with our series about Kernel Integration we'll go into more detail about how regression detection, processing, and tracking can be improved to provide a better service to developers and maintainers.

Automatic regression handling and reporting for the Linux Kernel

Almost a fully open-source boot chain for Rockchip's RK3588!

February 21, 2024 by Eugen Hristev  |   Blog

Now included in our Debian images & available via our GitLab, you can build a complete, working BL31 (Boot Loader stage 3.1), and replace the closed binary blob with an open-source binary that anyone can compile.

Almost a fully open-source boot chain for Rockchip's RK3588!

What's the latest with WirePlumber?

February 19, 2024 by George Kiagiadakis  |   Blog

Back in 2022, after a series of issues were found in its design, I made the call to rework some of WirePlumber's fundamentals in order to allow it to grow. So where are we now? And what's next? Let's dive in!

What's the latest with WirePlumber?

DRM-CI: A GitLab-CI pipeline for Linux kernel testing

February 08, 2024 by Helen Koike  |   Blog

Continuing our Kernel Integration series, we're excited to introduce DRM-CI, a groundbreaking solution that enables developers to test their graphics subsystem patches across numerous devices within the community's shared infrastructure.

DRM-CI: A GitLab-CI pipeline for Linux kernel testing

Persian Rug, Part 4 - The limitations of proxies

January 23, 2024 by Edmund Smith  |   Blog

This is the fourth and final part in a series on persian-rug, a Rust crate for interconnected objects. We've touched on the two big limitations: lack of deletion and lack of enforced matching between proxies and containers. Let's look at other solutions.

Persian Rug, Part 4 - The limitations of proxies

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

Reverse-engineering the Mali G78

July 20, 2021 by Alyssa Rosenzweig  |   News & Events

After a month of reverse-engineering the Arm Mali G78, we’re excited to release documentation on the Valhall instruction set, available as a PDF, as well as a Valhall assembler and disassembler to be used as a reverse-engineering aid.

Reverse-engineering the Mali G78

Kernel 5.13: Growing team and KernelCI hackfest

July 08, 2021 by Gabriel Krisman Bertazi  |   News & Events

Collabora's team working directly on the Linux kernel is growing. Collaborans continue to expand on their efforts to close the gap between hardware support on vendor trees and mainline.

Kernel 5.13: Growing team and KernelCI hackfest

A very successful first KernelCI hackfest

June 21, 2021 by Shreeya Patel  |   News & Events

Earlier this month, Collabora took part in the very first KernelCI hackfest, initiated as a joint effort with the Google Chrome OS team. Here's a look at what led to our participation and what was accomplished.

A very successful first KernelCI hackfest

Growing for the road ahead

June 21, 2021 by Erica Ryoo  |   News & Events

Despite the many obstacles brought on by the pandemic, Collabora has continued to grow its teams for the road ahead. Join us in welcoming Kiril, Benjamin, Daniel, Shreeya, Ariel, Nicolas and James!

Growing for the road ahead

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