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Collabora & GStreamer 1.18

October 06, 2020 by Stéphane Cerveau  |   News & Events

A move to GitLab. A switch to the powerful Meson build system. A fast and reliable CI system implemented. The GStreamer community has been busy, bringing a bevy of enhancements to 1.18. Here's a look at the key contributions by Collaborans.

Collabora & GStreamer 1.18

Building GStreamer text rendering and overlays on Windows with gst-build

September 28, 2020 by Aaron Boxer  |   Blog

GStreamer relies on various 2D font rendering and layout libraries such as Pango and Cairo to generate text for the Pango plugin, which contains elements such as textoverlay. Here's how to add the Pango plugin to a gst-build installation on Windows.

Building GStreamer text rendering and overlays on Windows with gst-build

Initcalls, part 2: Digging into implementation

September 25, 2020 by Mylène Josserand  |   Blog

In this second part of this blog post series on Linux kernel initcalls, we'll go deeper into implementation, with a look at the colorful __device_initcall() macro, the rootfs initcall, and how modules can be executed.

Initcalls, part 2: Digging into implementation

Open Source meets Super Resolution, part 1

September 21, 2020 by Marcus Edel  |   Blog

Introducing an accurate and light-weight deep network for video super-resolution upscaling, running on a completely open source software stack using Panfrost, the free and open-source graphics driver for Mali GPUs.

Open Source meets Super Resolution, part 1

X.Org Developer's Conference 2020

September 15, 2020 by Mark Filion  |   News & Events

The lineup of great virtual conferences continues this week with the 2020 edition of X.Org Developer's Conference (XDC), the leading event for developers working on all things Open graphics, including the Linux kernel, Mesa, DRM, Wayland and X11.

X.Org Developer's Conference 2020

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

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

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!

Smells like team spirit: Meet our newest Collaborans!

February 26, 2024 by Kara Bembridge  |   News & Events

With adversity comes the need to rise to the challenge. As the tech climate continues to shift, 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!

Kernel 6.7: New year, new Linux!

January 11, 2024 by Eugen Hristev  |   News & Events

Collabora's kernel team made a number of key contributions including a new kselftest for verifying driver probe of Devicetree-based platforms, multiple improvements to further improve support for MediaTek SoCs found in Chromebooks, and more.

Kernel 6.7: New year, new Linux!

Weston 13.0 release: Backends consolidation

December 21, 2023 by Marius Vlad  |   News & Events

Weston 13.0 brings multiple fixes and important changes, notably the ability to load multiple backends simultaneously. This can be used to load VNC, RDP, or PipeWire backends for remote access alongside the native DRM backend.

Weston 13.0 release: Backends consolidation

NVK holiday update: What we've achieved, and where we're headed

December 20, 2023 by Faith Ekstrand  |   News & Events

As 2023 draws to a close, I wanted to give a quick update on NVK, what's happened this year, and where we'll be headed in 2024. While previous posts have focused primarily on the technical details, this post will be more geared towards users.

NVK holiday update: What we've achieved, and where we're headed

WhisperSpeech makes its way to AI.dev

December 07, 2023 by Mark Filion  |   News & Events

Collabora is headed to California to take part in the inaugural edition of AI​.dev: Open Source GenAI & ML Summit, a new event which aims to bring together the brightest developers from around the world to shape the trajectory of open source AI.

WhisperSpeech makes its way to AI.dev

Ready for embedded: PipeWire 1.0 released

November 27, 2023 by George Kiagiadakis  |   News & Events

It is with the utmost excitement that we witness the release of PipeWire 1.0, the first officially stable release of this noteworthy inter-process multimedia streaming framework after many years of development.

Ready for embedded: PipeWire 1.0 released

MiniDebConf Cambridge 2023

November 21, 2023 by Kara Bembridge  |   News & Events

This week, the Debian project takes over Cambridge as MiniDebConf kicks off right in our own British backyard! Organized by Debian project members, MiniDebConfs aim to achieve similar objectives to those of the annual Debian conference, DebConf.

MiniDebConf Cambridge 2023

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