ืื SVT-AV1 4.0.0 (Scalable Video Technology AV1) ืืืืืืึธืืขืง ืืื ืืจืืืกืืขืืขืื ืืขืืืึธืจื, ืืื ืืืืคึผืืขืืขื ืืึทืฆืืขืก ืคืื ืืขื AV1 ืืืืืขืึธ ืขื ืงืึธืืืื ื ืคึฟืึธืจืืึทื ืขื ืงืึธืืขืจ ืืื ืืขืงืึธืืขืจ, ืืึทืฉื ืขืืขืจื ืืืจื ืืึทืจืืืืขืจ ืคึผืึทืจืึทืืขื ืงืึธืืคึผืืืืื ื ืขืงืกืืขื ืฉืึทื ื ืคืึธืจืฉืืขืื ืืื x86_64 ืืื ARM ืคึผืจืึทืกืขืกืขืจื. ืืขืจ ืคึผืจืึธืืขืงื ืืื ืืืฉืืคื ืืขืืืึธืจื ืืืจื Intel ืืื ืคึผืึทืจืื ืขืจืฉืึทืคื ืืื Netflix ืฆื ืืขืจืืจืืืื ืึท ืคืึธืจืฉืืขืืื ื ืืืจืื ืคึผืึทืกืืง ืคึฟืึทืจ ืืืืฃ-ืืขื-ืคืื ืืืืืขืึธ ืืจืึทื ืกืงืึธืืืจืื ื ืืื ื ืืฆื ืืื ืืืืืขืึธ-ืืืืฃ-ืคืึธืืขืจืื ื (VOD) ืืึทืืื ืื ืืขื. ืื ืึทื ืืืืืงืืื ื ืืื ืืืฆื ืืื ืืึทื ื ืืื ืืขืจ ืื ืึธืกืคึผืืกืื ืคืื ืื Open Media Alliance (AOMedia), ืืืึธืก ืึธืืืืขืจืกืื ืื ืึทื ืืืืืงืืื ื ืคืื ืื AV1 ืืืืืขืึธ ืขื ืงืึธืืืื ื ืคึฟืึธืจืืึทื. ืืขืจ ืคึผืจืึธืืขืงื ืืื ืคืจืืขืจ ืืขืืืขืืึธืคึผืขื ืืขืืืึธืจื ืืื ืืขื OpenVisualCloud ืคึผืจืึธืืขืงื, ืืืึธืก ืืืื ืึทื ืืืืืงืื ืื SVT-HEVC ืืื SVT-VP9 ืขื ืงืึธืืขืจืก. ืืขืจ ืงืึธื ืืื ืคืึทืจืฉืคึผืจืืื ืืื ืืขืจ ืึท BSD ืืืฆืขื ืฅ.
SVT-AV1 ืงืขื ืงืึธืืคึผืืืืจื ืืืขืจื ืคึฟืึทืจ ืกืืกืืขืืขื ืืึทืืืจื ืืืืฃ ืืขืืขืจ ืึทืจืืืืขืงืืืจ ืคึฟืึทืจ ืืืขืืืขืจ ืขืก ืืื ืคึฟืึทืจืึทื ืึท ืงืึธืืคึผืืืืขืจ ืืืึธืก ืฉืืืฆื ืืขื C99 ืกืืึทื ืืึทืจื, ืึธืืขืจ ืื ืืขืกืืข ืคืึธืจืฉืืขืืื ื ืืืขืจื ืืขืจืืจืืืื ืืืืฃ x86_64 ืกืืกืืขืืขื, ืคึฟืึทืจ ืืืขืืืข ืขืก ืืืขืจื ืืขื ืืฆื ืึทืกืขืืืืขืจ ืึธืคึผืืืืืืึทืฆืืขืก ืืึทืืืจื ืืืืฃ SIMD ืืื ืกืืจืืงืฆืืขืก (AVX2 ืฉืืืฆืข ืืื ืืขืจ CPU ืืื ืืืื ืฉืขืืืืืง, ืึธืืขืจ SSE2 ืืื ืืขื ืื ืืื ืึท ืืื ืืืื). ืืึผืจืื ืงืึทื ืกืึทืืฉืึทื ืืขืคึผืขื ืืก ืืืืฃ ืืขืจ ืฆืึธื ืคึผืจืึทืกืขืกืึธืจ ืงืขืจื ืก ืืืึธืก ืืขื ืขื ืคึฟืึทืจืืื ืื ืืื ืขื ืงืึธืืืื ื, ืงืึธื ืืจืึธืืืจื ืืืจื ืืขืจ "--lp" ืึธืคึผืฆืืข. ืฆืืืื ืืขืจ ืงืึธืืคึผืืขืงืกืืืขื ืคึฟืื ืื ืึทืืืขืจืืืืขื ืืืึธืก ืืืขืจื ืืขื ืืฆื ืืื AV1, ืืึทืจืฃ ืขื ืงืึธืืืื ื ืืขื ืคึฟืึธืจืืึทื ืืึทืืืืื ื ืืขืจ ืจืขืกืืจืกื ืืื ืึทื ืืขืจืข ืคึฟืึธืจืืึทืื, ืืืฉื, ืืขืจ ืกืืึทื ืืึทืจื ืขื ืงืึธืืขืจ ืคึฟืื ืืขื AV1 ืคึผืจืึธืืขืงื ืืึทืจืฃ 5721, 5869 ืืื 658 ืืึธื ืืขืจ ืงืึทืืคึผืืืืืืฉืึทื ื ืงืึทืืคึผืขืจื ืฆื ืื x264 (ืคึผืจืึธืคืื "ืืืืคึผื"), x264 (ืคึผืจืึธืคืื "ืืืื") ืืื libvpx-vp9 ืขื ืงืึธืืขืจืก.
ืฆืืืืฉื ืื ืขื ืืขืจืื ืืขื ืืื ืื ื ืืึทืข ืืขืืืื ื ืคืื SVT-AV1:
- ืึธืคึผืืืืืืึทืฆืืข ืคืื โโืืืื-ืคึฟืจัะนื ืืื AVIF ืืืื ืขื ืงืึธืืืื ื ืืึธืืขืก ืืื ืืืจืืืขืคึฟืืจื ืืขืืืึธืจื. ืคึฟืึทืจ ืคึผืจืขืกืขืืก M0-M11, ืืึธื ืื ืึทืงืืืืืืจืื ื ืคึฟืื ืืขื MS-SSIM ืคึผืึทืจืึทืืขืืขืจ (โtune 4) ืจืขืืืืืืจื ืืื ืึท 5-8x ืคืึทืจืืจืขืกืขืจืื ื ืืื ืขื ืงืึธืืืื ื ืืืืงืืื ืืฉืขืช ืืขื ืืึทืื ืื ืงืืืึทืืืืขื. ืืืขื ืขืืืึทืืืึดืจื ืืื ืื BD-Rate (Bjontegaard-Delta) ืืขืืึธืืข, ืืึธื ืื ืงืึทืืคึผืจืขืฉืึทื ืขืคึฟืขืงืืืืืงืืื ืืื ืคึฟืึทืจืืขืกืขืจื ืืื 5-8% ืืืื ืืขืืื ืงืึธืืคึผืืขืงืกืืืขื ืืขืืืขื.
- ืื ืงืืืึทืืืืขื/ืืื ืงืึธืืคึผืจืึธืืืกื ืคึฟืึทืจ ืขื ืงืึธืืืื ื ืืื "-rtc" (ืจืขืึทื-ืฆืืื ืงืึธืืื ืืงืึทืฆืืขืก) ืืึธืืข ืืขื ืขื ืึธืคึผืืืืืืืจื ืืขืืืึธืจื. ืคึฟืึทืจ ืคึผืจืขืกืขืืก M7-M11, ืืืขืจื ืืึทืืขืจืงื ืึท 5-15% ืืื ืคืึทืจืืจืขืกืขืจืื ื ืืฉืขืช ืืขื ืืึทืื ืื ืงืืืึทืืืืขื ืืขืืืขืืก.
- ืื ืงืืืึทืืืืขื/ืืื ืงืึธืืคึผืจืึธืืืกื ืคึฟืึทืจ ืขื ืงืึธืืืื ื ืืื ืจืึทื ืืึธื ืึทืงืกืขืก ืืึธืืข ืืขื ืขื ืึธืคึผืืืืืืืจื ืืขืืืึธืจื. ืคึฟืึทืจ ืคึผืจืขืกืขืืก M0-M7, ืืืขืจื ืึท 10-25% ืืื-ืคืึทืจืืขืกืขืจืื ื ืืึทืืขืจืงื ืึธื ืงืืืึทืืืืขื-ืคืึทืจืืืกื ืืืขื ืืขื ื ืืฆื ืื "โfast-decode=1|2" ืึธืคึผืฆืืข.
- ืืืืฃ ARM ืกืืกืืขืืขื, ืืืขืจื ื ืึธื ืึธืคึผืืืืืืึทืฆืืขืก ืืึทืืืจื ืืืืฃ ืื Neon ืืื SVE2 ืขืงืกืืขื ืฉืึทื ื ืขื ืืืืึทืื, ืืืึธืก ืจืขืืืืืืจื ืืื ืึท 5% ืคืึธืจืฉืืขืืื ื ืคึฟืึทืจืืขืกืขืจืื ื ืคึฟืึทืจ ืขื ืงืึธืืืื ื ื ืืืขืจืืง-ืจืขืืึธืืืฆืืข, ืืืื-ืงืึธืืืจ-ืืืคืงืืึทื ืกืืจืืื.
- ืื ืืืืขืจืคืืจ ืคืื ืคืืจืืจืืืืขืจืืข ืืขืืืขืืงืืืื ืคืืจื ืืืื ืืืืืืขืื ืงืืืึทืืืืขื ืืึธืืข, ืืืึธืก ืืื ืืขืืืึธืจื ืืขืืืขื ืืืจื ื ืืฆื ืื "โtune 0" (VQ, ืืืืืขื ืงืืืึทืืืืขื) ืกืขืืืื ืืก ืคืืจ ืืืืืขื ืืื "โtune 3" (IQ, ืืืื ืงืืืึทืืืืขื) ืคืืจ Avif ืืืืืขืจ, ืืื ืืขืืืึธืจื ืคืืจืขื ืืืงื ืคืื ืืขืจ ื ืืฉื ืืขืจ ืคืจืืืืฆืืจืืขืจ SVT-AV1-PSY ืืึธืคึผื.
- ืื AC ืืืืึทืก ืคึผืกืืืึธืืืืืฉืืึทื ืืึธืืขืืื ื ืืขืืึธื ืืื ืืขืืืึธืจื ืืืืคึผืืขืืขื ืืืจื, ืคึฟืึทืจืืขืกืขืจื ืืืง ืื ืคึผืจืขืืขืจืืืืืฉืึทื ืคืื ืืขืืึทื ืืื ืจืึทืฉ ืคึฟืื ืื ืงืึทืืขืจืึท ืกืขื ืกืึธืจ.
- ืคึฟืึทืจืืขืกืขืจืืข ืฉืืืฆืข ืคึฟืึทืจ S-ืคึฟืจัะนืืก (ืกืืืืืฉ ืคึฟืจัะนืืก), ืืืึธืก ืืืขืจื ืืขื ืืฆื ืืืขื ืืขื ืกืืืืืฉื ืฆืืืืฉื ืกืืจืืืก ืคึฟืื ืคึฟืึทืจืฉืืืขื ืข ืงืืืึทืืืืขื. S-ืคึฟืจัะนื ืฉืืืฆืข ืืื ืฆืืืขืืขืื ืืขืืืึธืจื ืฆื ืื ืงืืืึทื ืืืืึทืฆืืข (QP) ืืื ืืขืงืึธืืืจืื ื ืกืืจ ืกืขืืืื ืืก.
- ืฆืืืขืืขืื ืื ืืขืืืขืืงืืื ืฆื ื ืืฆื IQ (ืืืื ืงืืืึทืืืืขื) ืืื MS-SSIM (ืืืืื-ืกืงืืื ืกืืจืืงืืืจืึทื ืกืืืืืึทืจืืื ืืื ืืขืงืก) ืืึธืืขืก ืืืขื ืืขื ืงืึธืืืจื ืืืืืขืจ ืืื ืืืืืืฉืข ืจืึธืืขื.
- ืขื ืืขืจืื ืืขื ืืขื ืขื ืืขืืืื ืืขืืืืจื ืฆื ืื API, ืืจืืื ืืขืจืขืื ื ืื ืืืืก ืืจืขืื ืฆืืจืืง-ืงืืืคืืืืืืืืื.
ืืงืืจ: opennet.ru
