On Dec. 2, QuickTime turned 34, and despite its origins in Apple's chaotic 1990s (1991 to be exact), "it's still the backbone of video on our devices," writes Macworld's Jason Snell. That includes MP4 and Apple's immersive video formats for Vision Pro. From the report: By the late '80s and early '90s, digital audio had been thoroughly integrated into Macs. (PCs needed add-on cards to do much more than issue beeps.) The next frontier was video, and even better, synchronized video and audio. There were a whole lot of challenges: the Macs of the day were not really powerful to decode and display more than a few frames per second, which was more of a slideshow than a proper video. Also, the software written to decode and encode such video (called codecs) was complex and expensive, and there were lots of different formats, making file exchange unreliable. Apple's solution wasn't to invent entirely new software to cover every contingency, but to build a framework for multimedia creation and playback that could use different codecs as needed. At its heart was a file that was a container for other streams of audio and video in various formats: the QuickTime Movie, or MOV. [...] QuickTime's legacy lives on. At a recent event I attended at Apple Park, Apple's experts in immersive video for the Vision Pro pointed out that the standard format for immersive videos is, at its heart, a QuickTime container. And perhaps the most ubiquitous video container format on the internet, the MP4 file? That standard file format is actually a container format that can encompass different kinds of audio, video, and other information, all in one place. If that sounds familiar, that's because MPEG-4 is based on the QuickTime format. Thirty-four years later, QuickTime may seem like a quaint product of a long-lost era of Apple. But the truth is, it's become an integral part of the computing world, so pervasive that it's almost invisible. I'd like to forget most of what happened at Apple in the early 1990s, but QuickTime definitely deserves our appreciation.

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Netflix says its open AV1 video codec now powers about 30% of all streaming on the platform and is rapidly becoming its primary delivery format thanks to major gains in compression, bandwidth efficiency, HDR support, and film-grain rendering. TVTechnology reports: The blog by Liwei Guo, Zhi Li, Sheldon Radford and Jeff Watts comes at a time when AV2 is on the horizon. [...] The blog revisits Netflix's AV1 journey to date, highlights emerging use cases, and shares adoption trends across the device ecosystem. It noted that since entering the streaming business in 2007, Netflix has primarily relied on H.264/AVC as its streaming format. "Looking ahead, we are excited about the forthcoming release of AV2, announced by the Alliance for Open Media for the end of 2025," said the authors. "AV2 is poised to set a new benchmark for compression efficiency and streaming capabilities, building on the solid foundation laid by AV1. At Netflix, we remain committed to adopting the best open technologies to delight our members around the globe. While AV2 represents the future of streaming, AV1 is very much the present -- serving as the backbone of our platform and powering exceptional entertainment experiences across a vast and ever-expanding ecosystem of devices."

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Dacia s’émancipe, encore et toujours. Cette troisième génération de Duster lancée en 2024 voyait apparaître l’hybridation 140 ch bien connue chez Renault (E-Tech) et apparue [...]

L’article Essai Dacia Duster hybrid-G 4×4 de 154 ch : l’offre tout-en-un est-elle un sans-faute ? est apparu en premier sur Le Blog Auto.