The promise of a unifying standard to simplify our lives is attractive, but putting it into practice is another thing. Here’s how one HTML5 video project got messy in a hurry. As much as we expect standards like HTML5 to simplify our jobs, oftentimes they don’t. In fact, a recent HTML5-related project convinced me that…
DetailsStephen Nathans-Kelly, a video producer at Streaming Media Magazine, is carving conference videos into short useful segments. Here are the first two videos on building your encoding ladder from my talk on how to use objective quality metrics you can watch in its entirety here, as well as download the handout. The first video covers…
DetailsEvery compressed file involves dozens of configuration-related decisions, including resolution, data rate, H.264 profile, VBR or CBR, entropy coding technique, x.264 preset, b-frames, reference frames—the list goes on and on. Most encoding prof
DetailsPublishers and encoding companies alike are beginning to embrace VP9, Google’s open source codec. Here’s how it stacks up on quality and data rates. The value proposition for VP9 is clear, as stated in Figure 1: “Adaptive HD streaming with 1/2 the data of H.264!” Half the data rate cuts your bandwidth and storage costs…
DetailsOnline is different from broadcast and doesn’t need formal standards. HEVC isn’t considered by many online video streamers, as the future belongs to VP9 and AV1. Elsewhere in the issue, you find a 4,000-word article I wrote on VP9 that doesn’t mention HEVC. Why? Because for the vast majority of streaming producers that don’t distribute…
DetailsLondon-based V-Nova has made some impressive claims about Perseus, its compression technology. Streaming Media’s preliminary testing shows that it lives up to some of them. V-Nova launched its compression technology, Perseus, on April Fools’ Day 2015, claiming “2x–3x average compression gains, at all quality levels, under practical real-time operating scenarios versus H.264, HEVC and JPEG2000.”…
DetailsNetflix announced the open-source availability of the Video Multimethod Assessment Fusion, which it’s now using instead of PSNR to analyze the quality of transcodes in its vast catalog. Yesterday, Netflix announced the open-source availability of its new video quality metric, the Video Multimethod Assessment Fusion (VMAF) in a long, explanatory blog post. Netflix uses the…
DetailsScheduled to be the first codec released by the Alliance for Open Media, AV1 is positioned to replace VP9 and compete with HEVC. While we don’t know many details yet, the backing of the Alliance should give AV1 a significant competitive advantage. The AV1 codec will be the first codec released by the Alliance for…
DetailsOnce counted out, VP9 is on the rise, with support from Netflix, JW Player, Brightcove, and more. In this interview, David Ronca of Netflix talks about VP9 savings, encoding, and testing. This is an interesting time in the codec world, an inflection point where the power of an expensive standard is being challenged by a…
DetailsThis article is kind of a prequel to my book, Encoding by the Numbers, which I published in 2016. That is, I published this article to get commentary from folks who read it, which I factored back into my book. Unfortunately, I changed content management systems in 2018 and lost the comments. One of the…
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