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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

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 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

Zink: Summer 2021 update

June 14, 2021 by Erik Faye-Lund  |   Blog

There's a lot that has happened in the world of Zink since my last update, so let's see if I can bring you up to date on the most important stuff, including upstream development, support for OpenGL 4.6 & GLES 3.1, and more.

Zink: Summer 2021 update

Open Source OpenGL ES 3.1 on Mali GPUs with Panfrost

June 11, 2021 by Alyssa Rosenzweig  |   Blog

Panfrost, the open source driver for Arm Mali, now supports OpenGL ES 3.1 on both Midgard (Mali T760 and newer) and Bifrost (Mali G31, G52, G72) GPUs, adding a number of features, notably including compute shaders.

Open Source OpenGL ES 3.1 on Mali GPUs with Panfrost

Optimizing 3D performance with virglrenderer

May 17, 2021 by Gert Wollny  |   Blog

Collabora has been investing into Perfetto to enable driver authors & users to get deep insights into driver internals and GPU performance. Here's how we applied this work to study workloads on the virtualized VirGL implementation.

Optimizing 3D performance with virglrenderer

Mainline Linux gains accelerated video decoding for Microchip's SAMA5D4

May 11, 2021 by Emil Velikov  |   Blog

The Hantro Video4Linux2 (V4L2) kernel module has gained support for another SoC! The Microchip SAMA5D4 features a single decode unit supporting MPEG2, VP8 and H.264 streams, alongside the built-in post-processing unit.

Mainline Linux gains accelerated video decoding for Microchip's SAMA5D4

Quick hack: Patching kernel modules using DKMS

May 05, 2021 by Frederic Danis  |   Blog

DKMS is a framework that is mostly used to build and install external kernel modules. It can also be used to install a specific patch to the modules of the current kernel, such as applying a specific fix to the Bluetooth USB subsystem.

Quick hack: Patching kernel modules using DKMS

Build your own application with GTK 4 as a Meson subproject!

April 29, 2021 by Xavier Claessens  |   Blog

Building GTK 4 as a Meson subproject for your own application is not only useful for Windows builds, but also for many Linux distributions that do not yet package a recent enough version of GTK 4 and/or its dependencies.

Build your own application with GTK 4 as a Meson subproject!

Profiling virtualized GPU acceleration with Perfetto

April 22, 2021 by Antonio Caggiano  |   Blog

Recently, we have been using Perfetto to successfully profile Apitrace traces in crosvm through VirGL renderer. We have now added perfetto instrumentation to VirGL renderer, Mesa, and Apitrace to see what happens precisely in a frame.

Profiling virtualized GPU acceleration with Perfetto

Continuous 3D Hand Pose Tracking using Machine Learning & Monado

April 20, 2021 by Marcus Edel  |   Blog

As part of a project backed by INVEST-AI, a program managed by IVADO Labs, we have developed a multi-stage neural network-based solution that accurately locates and tracks the hands despite complex background noise and occlusion between hands.

Continuous 3D Hand Pose Tracking using Machine Learning & Monado

Future-proofing at Embedded World 2024

March 22, 2024 by Kara Bembridge  |   News & Events

One of the largest trade fair of its kind, and a global platform for the embedded community, Embedded World will be taking place next month at the NürnbergMesse in the quaint city of Nuremberg, Germany

Future-proofing at Embedded World 2024

GStreamer 1.24: New heights in embedded, network streaming & analytics

March 19, 2024 by Daniel Morin  |   News & Events

Thanks to sponsors like STMicroelectronics, Netflix, Living Optics, and ChromeOS, Collabora once again came in first place with the most contributors for this release, with 16 developers taking part.

GStreamer 1.24: New heights in embedded, network streaming & analytics

Kernel 6.8: MediaTek community flourishes

March 11, 2024 by Muhammad Usama Anjum  |   News & Events

The latest Linux Kernel 6.8 release brings thousands of new lines of code, improving the core kernel, architecture support, networking, file systems, and more.

Kernel 6.8: MediaTek community flourishes

Release the panthor!

March 04, 2024 by Boris Brezillon  |   News & Events

Late last week, the long-awaited kernel driver supporting 10th-generation Arm Mali GPUs was merged into drm-misc. The existing Gallium driver support has also been extended, effectively enabling GPUs on Rockchip's RK3588 platforms.

Release the panthor!

Patch submitted to introduce GitLab-CI pipeline for Linux kernel testing

March 01, 2024 by Helen Koike  |   News & Events

This initial version includes static checks (checkpatch and smatch for now) and build tests across various architectures and configurations, and introduces a flexible 'scenarios' mechanism for subsystem-specific extensions.

Patch submitted to introduce GitLab-CI pipeline for Linux kernel testing

NVK is now ready for prime time

February 28, 2024 by Faith Ekstrand  |   News & Events

The merge request has landed, the non-conformant implementation warnings are gone, and NVK's Meson configuration now reads "nouveau" instead of "nouveau-experimental". It's now time to start shipping NVK to users!

NVK is now ready for prime time

Smells like team spirit: Meet our newest Collaborans!

February 26, 2024 by Kara Bembridge  |   News & Events

We've recently had some new faces join the team and we are delighted that our talented new joiners have readily jumped in to advance the open source mission.

Smells like team spirit: Meet our newest Collaborans!

FOSDEM 2024 - Recorded presentations (videos) now available

February 15, 2024 by Mark Filion  |   News & Events

Collabora's engineers presented six talks over the course of the weekend, with topics including a review of recent improvements to GStreamer, a look at the state of video offloading on the Linux desktop, and more.

FOSDEM 2024 - Recorded presentations (videos) now available

A framework to share analytics data in GStreamer

February 13, 2024 by Daniel Morin  |   News & Events

Engineers have widely adopted GStreamer to build video analytics pipelines, and while many companies have indeed built their machine learning analysis framework around GStreamer, no one had made the effort to contribute upstream, until now.

A framework to share analytics data in GStreamer

Wine on Wayland: A year in review (and a look ahead)

January 30, 2024 by Alexandros Frantzis  |   News & Events

2023 was a great year for the Wayland driver for Wine. After several merge requests, many people are now already able to use the latest Wine release to enjoy some of their favorite Windows applications in a completely X11-free environment!

Wine on Wayland: A year in review (and a look ahead)

WhisperFusion: Ultra-low latency conversations with an AI chatbot

January 25, 2024 by Marcus Edel  |   News & Events

By creating a real-time AI chatbot communication system using WhisperLive and WhisperSpeech, we have addressed the unnatural delay in current bot interactions for seamless conversation.

WhisperFusion: Ultra-low latency conversations with an AI chatbot

First in line for FOSDEM 2024: GStreamer, LAVA workloads & more!

January 18, 2024 by Kara Bembridge  |   News & Events

With many dedicated souls willing to endure a FOSDEM queue, Collabora's engineers will be giving 6 talks spread out amongst multiple devrooms including Open Media and Testing & Continuous delivery.

First in line for FOSDEM 2024: GStreamer, LAVA workloads & more!

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Upcoming Events

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

SIDO

September 18-19, Lyon, France

Linux Plumbers Conference

September 18-20, Vienna, Austria

Kernel Recipes

September 23-25, Paris, France

GStreamer

October 7-10, Montreal, Quebec

XDC

October 9-11, Montreal, Quebec

 

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