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Google Releases VP8 Bali Codec SDK

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  • Google Releases VP8 Bali Codec SDK

    Phoronix: Google Releases VP8 Bali Codec SDK

    Google has released a new version of its open VP8 codec. This new version, which is codenamed "Bali", there's a focus on improving the performance and video quality...

    http://www.phoronix.com/vr.php?view=OTE5MQ

  • #2
    Ehm, no, 7% or 26% is not "much greater" than a 1.3 (or even a 4.5) times improvement. Saying something is 1.3 times faster is the same as a 30% (or 33.333333% or something similar) improvement.

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    • #3
      Originally posted by quintesse View Post
      Ehm, no, 7% or 26% is not "much greater" than a 1.3 (or even a 4.5) times improvement. Saying something is 1.3 times faster is the same as a 30% (or 33.333333% or something similar) improvement.
      My thoughts exactly.
      Michael, can you elaborate on this? Is it a typo?

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      • #4
        and ffmpeg one?

        I know that ffmpeg guy have done an other one which was really fast.
        So what is the winner between ffvp8 and libvpx?

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        • #5
          Originally posted by dufoli View Post
          I know that ffmpeg guy have done an other one which was really fast.
          So what is the winner between ffvp8 and libvpx?
          ffvp8 is only a decoder. The new libvpx release brings lots of encoder improvements.

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          • #6
            I'd be pretty cool if VP8 guys would stop caring about crappy metrics like PSNR for video quality.

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            • #7
              Originally posted by DeiF View Post
              My thoughts exactly.
              Michael, can you elaborate on this? Is it a typo?
              Looks like he wrote it in haste.. A quick click on the link to the blog shows where he got his figures.

              "Best" mode average encoding speed: On x86 processors, Bali runs 4.5x as fast than our initial release and 1.35x faster than Aylesbury.
              "Good" mode average encoding speed: Bali is 2.7x faster than our initial release and 1.4x faster than Aylesbury.
              On ARM platforms with Neon extensions, real-time encoding of video telephony content is 7% faster than Aylesbury on single core ARM Cortex A9, 15% on dual-core and 26% on quad core.
              On the NVidia Tegra2 platform, real time encoding is 21-36% faster than Aylesbury, depending on encoding parameters.
              "Best" mode average quality improved 6.3% over Aylesbury using the PSNR metric.
              "Best" mode average quality improved 6.1% over Aylesbury using the SSIM metric.
              So they're talking about different settings.. Best, good and real-time encoding.

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