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Theora Ahead of H.264 In Objective PSNR Quality

bigmammoth writes "Xiph hackers have been hard at work improving the Theora codec over the past year, with the latest versions gaining on and passing h.264 in objective PSNR quality measurements. From the update: 'Amusingly, it also shows test versions of Thusnelda pulling ahead of h.264 in terms of objective quality as bitrate increases. It's important to note that PSNR is an objective measure that does not exactly represent perceived quality, and PSNR measurements have always been especially kind to Theora. This is also data from a single clip. That said, it's clear that the gap in the fundamental infrastructure has closed substantially before the task of detailed subjective tuning has begun in earnest.' Momentum is building with a major Open Video Conference in June, the impending launch of Firefox 3.5 and excitement about wider adoption in a top-4 web site. It's looking like free video codecs may pose a serious threat to the h.264 bait-and-switch plan to start charging millions for internet streaming of h.264 in 2010."

2 of 313 comments (clear)

  1. Re:bullcrap by whoever57 · · Score: 5, Informative

    how exactly do you switch out a software agreement?

    What software agreement? I think that they are licensing patents. They have merely said that you don't have to pay to use the patents before 2010, but if you use the patents after that, you may need to pay (depending on volume). Yes, products that have shipped will be safe, but most companies want to continue shipping products, which will be affected by the royalty demands.

    --
    The real "Libtards" are the Libertarians!
  2. Re:Why the idiotic naming again? by xiphmont · · Score: 5, Informative

    "Ogg" is actually a term from an early internet game.

    http://en.wikipedia.org/wiki/Ogging

    Theora is named after Theora Jones, a secondary heroine character from the movie 'Max Headroom: 20 Minutes into the Future' about a dystopian future where video media is overwhelming, centralized, oppressive, dangerous, and an off switch on a television is illegal:

    http://en.wikipedia.org/wiki/Theora_Jones#Theora_Jones

    "Xiph" is actually from the Greek ξÎÏÎÏ (sword) by way of 'Xiphophorus' (sword-bearing, pseudolatin?) from the genus name of a fish (Xiphophorus helleri). Which is where I picked it up in middle school. I'd been using it for my software projects since I was 14 or so and by the time Xiph.Org was a real thing [many many years later] I wanted to change the name to something less silly and my co-founders voted me down. They liked Xiph. It became the precedent-setting silly name.

    Vorbis is from Terry Pratchett's _Small Gods_ and I dearly hope Mr. Pratchett considers it a compliment. It was meant as tribute to my favorite fictional villain, Archdeacon Vorbis. "A mind like a steel marble"