AOM AV1 Encoder Sees Big Boost With Additional AVX2 Optimization (Phoronix)

Dav1d 0.8.0 “Eurasian hobby”:

0.8.0 is a major update for dav1d:

• Improve the performance by using a picture buffer pool; The improvements can reach 10% on some cases on Windows.
• Support for Apple ARM Silicon
• ARM32 optimizations for 8bit bitdepth for ipred paeth, smooth, cfl
• ARM32 optimizations for 10/12/16bit bitdepth for mc_avg/mask/w_avg, put/prep 8tap/bilin, wiener and CDEF filters
• ARM64 optimizations for cfl_ac 444 for all bitdepths
• x86 optimizations for MC 8-tap, mc_scaled in AVX2
• x86 optimizations for CDEF in SSE and {put/prep}_{8tap/bilin} in SSSE3

https://code.videolan.org/videolan/dav1 ... aster/NEWS

SVT-AV1 v0.8.6
[0.8.6] - 2020-11-28

Encoder

• Further quality-speed tradeoffs tuning for VOD use cases
• Improved TPL support within 1-pass and 2-pass CRF moode
• Continued non-optimized support for 2pass VBR and CRF
• Align kernel nomenclature to prefix svt_aom for kernels brough from libaom to avoid symbol conflicts

Build and Testing

• Bug fixes
• Improve CI
• Added CI support for gitlab
• Improve Unit Test Coverage
• Address C vs asm mismatches
• Fix static analysis warnings / errors
• Add address sanitizer
• Fix symbol conflicts with libaom and libvpx when staticly linked to ffmpeg

https://github.com/AOMediaCodec/SVT-AV1 ... tag/v0.8.6

Hirsute Hippo har fått libVPx och VPx-tools 1.9.0.

Kan installeras i 20.10 med .deb-filer (AMD64) från
https://launchpad.net/ubuntu/hirsute/am ... x6/1.9.0-1
och
https://launchpad.net/ubuntu/hirsute/am ... ls/1.9.0-1

Dav1d 0.8.1 “Eurasian hobby”:

0.8.1 is a minor update on 0.8.0:

• Keep references to buffers valid after dav1d_close(). Fixes a regression caused by the picture buffer pool added in 0.8.0.
• ARM32 optimizations for 10bit bitdepth for SGR
• ARM32 optimizations for 16bit bitdepth for blend/w_masl/emu_edge
• ARM64 optimizations for 10bit bitdepth for SGR
• x86 optimizations for wiener in SSE2/SSSE3/AVX2

https://code.videolan.org/videolan/dav1 ... aster/NEWS

Rav1e 0.4.0

Rav1e 0.4 Released For Faster Rust AV1 Encoding – But Still Is Quite Slow (Phoronix)

Rav1e 0.5.0-alpha
—————————————————————————————————————————————

Dav1d 0.8.2 ‘Eurasian hobby’:

0.8.2 is a middle-size update of the 0.8.0 branch:

• ARM32 optimizations for ipred in 10/12bits, completing most of the 10b/12b work on ARM
• Give the post-filters their own threads
• ARM64: rewrite the wiener functions
• Speed up coefficient decoding, 0.5%–3% global decoding gain
• x86: rewrite the SGR AVX2 asm
• x86: improve msac speed on SSE2+ machines
• ARM32: improve speed of ipred and warp
• ARM64: improve speed of ipred, cdef_dir, cdef_filter, warp_motion and itx16
• ARM32/64: improve speed of looprestoration
• Add seeking, pausing to the player
• Update the player for rendering of 10b/12b
• Misc speed improvements and fixes on all platforms
• Add a xxh3 muxer in the dav1d application

https://code.videolan.org/videolan/dav1 ... aster/NEWS

dav1d 0.8.2 AV1 Decoder Showing Nice Uplift On Intel, AMD CPUs (Phoronix)