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Inlägg postade av JoWa

    HTML5 + <audio> & <video>

    i Allmänna datorfrågor och -diskussioner

    Postad · Redigerad av JoWa

    SVT-AV1 1.8 (2023-12-11)

    Encoder

    • Improve the tradeoffs for the random access mode across presets:
    • Speedup CRF presets M6 to M0 by 17–53% while maintaining similar quality levels
    • Re-adjust CRF presets M7 to M13 for better quality with BD-rate gains ranging from 1–4%
    • Improve the quality and speed of the 1-pass VBR mode
    • Improve Multi Pass VBR algorithm for better quality with BD-rate gains of ~3% on average
    • More details on the per preset improvements can be found in MR !2143
    • Add API allowing to update bitrate / CRF and Key_frame placement during the encoding session for CBR lowdelay mode and CRF Random Access mode
    • ARM Neon SIMD optimizations for most critical kernels allowing for a 4.5–8× fps speedup vs the c implementation

    Cleanup and bug fixes and documentation

    • Various cleanups and functional bug fixes
    • Update the documentation for preset options and individual features

    https://gitlab.com/AOMediaCodec/SVT-AV1/-/releases/v1.8.0

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