open source News - Page 52 of 92 - CNX Software

March 29, 2018March 29, 2018 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

AOMedia AV1 Video Codec Specifications Released

AOMedia’s AV1 video codec is an open source, royalty-free video codec aiming to surpass H.265 capabilities, and considering the savings to be made, as no royalties need to be paid, and potentially lower bandwidth requirements, many companies are on board including Google, Arm, Facebook,. Amazon, Apple, Intel, Cisco, and many others. Back in February we got an AV1 progress update at FOSDEM 2018, and the speaker explained there was still a few items to work out to finalize the specifications. This is now complete, as AOMedia (The Alliance for Open Media) has just released the (draft) specifications. Beside the Bitstream specification, the AV1 release includes: Unoptimized, experimental software decoder and encoder to create and consume the bitstream Reference streams for product validation Binding specifications to allow content creation and streaming tools for user-generated and commercial video AV1 has already been shown to outperform both H.265 and VP9 in tests using […]

March 19, 2018March 19, 2018 by Jean-Luc Aufranc (CNXSoft) - 16 Comments

LG Releases webOS Open Source Edition Optimized for Raspberry Pi 3

webOS, originally developed by Palm, is a Linux based multitasking operating systems with support for HTML5 and CSS3. It is now found in most (all?) new LG smart TVs, and the TV manufacturer has decided to expand the adoption of webOS by collaborating with the South Korean government and local startups, and released an open source version , webOS Open Source Edition, available publicly at http://webosose.org. webOS Open Source Edition 1.0 is said to be optimized for the Raspberry Pi 3, and the company provides build instructions on the “setting up” page of the website to build the firmware image, which you can then flash to a micro SD card. The idea is to for a community around the open source version webOS, and let different categories of developers or users contribute to the project: System UI Developers – The System UI is based on Blink and Qt, and developers […]

March 19, 2018March 8, 2019 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

FOSSASIA Summit 2018 Schedule – March 22-25

FOSDEM is the “Free & Open Source Software Developers’ European Meeting” takes place the first week-end of February every year in Brussels, Belgium. It turns out there’s an event in Asia called FOSSASIA Summit that’s about to take place in Singapore on March 22-25. There are some differences however, as while FOSDEM is entirely free to attend, FOSSASIA requires to pay an entry fee to attend talks, although there are free tickets to access the exhibition hall and career fair. There are also less sessions as in FOSDEM, but still twelve different tracks with: Artificial Intelligence Blockchain Cloud, Container, DevOps Cybersecurity Database Kernel & Platform Open Data, Internet Society, Community Open Design, IoT, Hardware, Imaging Open Event Solutions Open Source in Business Science Tech Web and Mobile Since the event is spread out over four days, it should be easier to attend the specific sessions you are interested in. I’ve […]

March 17, 2018March 18, 2018 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

HEIF Image Container Format Leverages H.265/HEVC to Store Photos and Image Sequences

A few years ago, Google introduced WebP image format leveraging VP8 video codec, and the Moving Picture Experts Group (MPEG) has decided to do something similar but instead of using VP8, they went with their own H.265/HEVC video codec for HEIF image container format. HEIF stands for High Efficiency Image File, and is defined by ISO/IEC 23008-12 (MPEG-H Part 12). The storage of the data is based on ISO Base Media File Format (ISOBMFF), and HEIF appears to be especially useful to replace animated GIFs file with better quality and much lower sizes, as well as burst photos. HEIF also appears to compress a little better than JPEG photo with similar quality, but HEIF appears to fallback to JPEG codec sometimes, so it may be improvement in the way metadata is handled? The comparison table show the different features between HEIF and other well-known image format (JEG, WebP, GIF, etc…). […]

March 14, 2018March 14, 2018 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Status of Embedded GPU Ecosystem – Linux/Mesa Upstream Support (ELC 2018 Video)

The Embedded Linux Confernce is on-going, and the Linux Foundation has been uploading videos about talks in a timely manner on YouTube. I checked out at RISC-V keynote yesterday, but today I’ve watched a talk by Robert Foss (his real name, not related to FOSS) from Collabora entitled “Progress in the Embedded GPU Ecosystem”, where he discusses open source software support in Linux/Mesa from companies and reverse-engineering support. The first part deals with the history of embedded GPU support, especially when it comes to company support. Intel was the first and offers very good support for their drivers, following by AMD who also is a good citizen. NVIDIA has the Nouveau driver but they did not really backed it up, and Tegra support is apparently sponsored by an aircraft supplier. Other companies have been slower to help, but Qualcomm has made progress since 2015 and now support all their hardware, […]

March 13, 2018March 13, 2018 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

RISC-V Keynote at Embedded Linux Conference 2018 (Video)

The Embedded Linux Conference and OpenIoT Summit 2018 have just started, and the Linux Foundation has already uploaded a few keynote videos to YouTube, including the one by Yunsup Lee, Co-Founder and CTO, SiFive, entitled “Designing the Next Billion Chips: How RISC-V is Revolutionizing Hardware”. Yunsup explains the current problem with chip development, and go through the open source RISC-V solutions offered by Sifive. Currently design a chip has a high upfront (NRE = non-recurring engineering) costs, is time-consuming (1.5 to 2 years at least) and silicon vendors normally target high volume production, but now many applications like IoT or machine learning require custom chips that may not be (yet) manufactured in such high volume. The solution is to adapt some idea from open source software to open source hardware in order to lower the costs, enable fast prototyping, and involve the community of designers and software developers. He took […]

February 21, 2018February 21, 2018 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Microchip Launches $39 Industrial Grade System-on-Module with SAMA5D2 System-in-Package

Last fall, Microchip introduced four SAMA5D2 systems-in-package (SiP) combining the Cortex A5 processor with 16 to 128 MB DDR2 in a single package, and at the time, the company also offered ATSAMA5D27-SOM1-EK1, a fast prototyping and evaluation platform for the SiP that was designed with a baseboard and a soldered down ATSAMA5D27-SOM1 system-on-module. The kit was available for $245, and pricing for the SiP started at around $9 per unit for 5K order. The company has now started to offer ATSAMA5D27-SOM1 module separately with pricing starting at $39 each for 100 pieces order. ATSAMA5D27-SOM1 specifications: SiP – Microchip ATSAMA5D27C-D1G SiP with Cortex-A5 MPU @ 500 MHz, 128 MB DDR2 DRAM Storage Microchip SST26VF064BT 64Mb Serial Quad I/O (QSPI) flash memory for boot code (Linux kernel or RTOS) Microchip 24AA025E48 2Kb Serial EEPROM with EUI-48 Note Identity for the Ethernet MAC address Connectivity – Microchip KSZ8081RNAIA 10Base-T/100Base-TX Ethernet PHY for wired […]

February 13, 2018February 13, 2018 by Jean-Luc Aufranc (CNXSoft) - No Comments

Tock Open Source OS for Secure IoT Systems Runs on Arm Cortex-M Microcontrollers

We already have a fair share of open source operating systems running on Arm Cortex-M microcontrollers with FreeRTOS, mbed OS, Zephyr OS, RIOT, and many others. Earlier this morning, as I wrote about the Embedded Linux and IoT Summit 2018, I discovered you can now also add Tock to the list, with the operating system specifically designed for (secure) IoT on Arm Cortex-M MCUs. According to the abstract, Tock aims to enable more secure and extensible IoT systems by using a language sandbox and hardware enforced mechanism to isolate third-party and other untrusted code in the system. The operating systems is comprised of three components: A trusted core kernel written in Rust language with a HAL, scheduler and platform-specific configuration Capsules compiled with the kernel and use Rust’s type and module systems for safety; typically used for drivers & virtualization layers User-space processes using the MPU for hardware protection at runtime; […]