AV1-kodaren Rav1e 0.3.0 har släppts med följande ändringar:

Improvements

• Faster and better Speed 10
• Smaller binaries (Around 3MB stripped on x86_64/Linux)
• Faster build times (About 14% faster build time)
• Multi-threaded deblocking filter
• Additional x86_64 SIMD code
• More auto-vectorizable codepaths and bounds check elisions
• ⅙ less memory allocations
• Improvements on the intra-modes pruning logic in the RDO
• More float to fixed-point conversions
• Make an early-exit condition in RDO faster
• Simplify logic in Counter/Recorder store method
• Support wasm32-wasi as build target
• 1–2% overall quality improvement (at speed level 2)

New tools

• Intra edge filter
• Switch frame support (use -S, --switch-frame-interval <SWITCH_FRAME_INTERVAL> to enable it from the CLI)
• Fine directional intra prediction
• Still Picture support with reduced still picture header (AVIF)

Changes

• Upstream nasm-rs 0.1.7 can be used to build rav1e.
• The C header produced is now C++-compatible

Fixes

• #1930
• #2055

https://github.com/xiph/rav1e/releases/tag/v0.3.0

Dav1d 0.6.0 ‘Gyrfalcon’:

0.6.0 is a major release for dav1d:

• New ARM64 optimizations for the 10/12bit depth:
  
  • mc_avg, mc_w_avg, mc_mask
  • mc_put/mc_prep 8tap/bilin
  • mc_warp_8x8
  • wiener
  • cdef
• New AVX-512 optimizations for prep_bilin, prep_8tap, cdef_filter
• New SSSE3 optimizations for film grain
• New AVX2 optimizations for msac_adapt16
• Fix rare mismatches against the reference decoder, notably because of clipping
• Improvements on ARM64 on msac, cdef optimizations
• Improvements in the C version for itxfm, cdef_filter

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

AV1-kodaren Rav1e 0.3.1 har släppts med följande ändringar:

Improvements

• 25–40% faster speed levels 2 to 5
  
  • This is accomplished by disabling costly coding tools
    
    • Fine directional prediction
    • Intra block transform splitting in inter frames
  • Encoding quality is slightly inferior (1–2%), but more in line with the target speed levels

https://github.com/xiph/rav1e/releases/tag/v0.3.1

SVT-AV1: open-source AV1 encoder and decoder (Netflix Technology Blog)

SVT-AV1 v0.8.2
[0.8.2] - 2020-04-18

Encoder

• Initial Super resolution support
• Mode decision rate estimation enhancements
• Altref improvements
• Manual prediction structure support
• Enhanced RDOQ support
• Improved warp motion
• Improved documentation and help menu
• New command line parameters
• Fix non-multiple of 8 resolution video corruption for 8bit
• Improved multi-stage mode decision support
• Added multi-stage motion estimation support
• Chroma mode decision optimizations
• Added 16bit pipeline support
• Added Mode decision non-square partition weights
• Enhanced qp-scaling assignment
• Memory optimizations
• Added AVX512 Optimizations
• Added AVX2 Optimizations

Decoder

• Improved multi-threading support
• Memory optimizations
• Updated documentation
• Loop filter flow optimization

Encoder and Decoder

• Encoder-Decoder-Common folder structure improvements

Build and Testing

Bug fixes

• Improve CI
• Improve Unit Test Coverage
• Address C vs asm mismatches
• Support C only builds (for platforms other than x86)

https://github.com/OpenVisualCloud/SVT- ... tag/v0.8.2

SVT-AV1 v0.8.3
[0.8.3] - 2020-04-24

Encoder

• Presets optimization

Build and Testing

• Bug fixes
• Xcode build support

https://github.com/OpenVisualCloud/SVT- ... tag/v0.8.3

LibAOM 2.0 är på gång. RC1 har släppts: https://aomedia.googlesource.com/aom/+/ ... v2.0.0-rc1

Släppts har också SVT-VP9 0.2.0:

• Fix ffmpeg plugin “Too many invisible frames” issue for mkv/webm/mp4/dash.
• Fix video corruption for non-multiple-of-8 gop size.
• Remove -irefresh-type option.

https://github.com/OpenVisualCloud/SVT- ... tag/v0.2.0

I dag, på WebMs tioårsdag, släpptes libaom v2.0.0 Applejack, en större uppdatering av AV1-referensimplementeringen LibAOM.

https://aomedia.googlesource.com/aom/+/refs/tags/v2.0.0

Dav1d 0.7.0 ”Frigatebird” har släppts.

Changes for 0.7.0 ‘Frigatebird’:
------------------------------
0.7.0 is a major release for dav1d:

• Faster refmv implementation gaining up to 12% speed while –25% of RAM (Single Thread)
• 10b/12b ARM64 optimizations are mostly complete:
  
  • ipred (paeth, smooth, dc, pal, filter, cfl)
  • itxfm (only 10b)
• AVX2/SSSE3 for non-4:2:0 film grain and for mc.resize
• AVX2 for cfl4:4:4
• AVX-512 CDEF filter
• ARM64 8b improvements for cfl_ac and itxfm
• ARM64 implementation for emu_edge in 8b/10b/12b
• ARM32 implementation for emu_edge in 8b
• Improvements on the dav1dplay utility player to support 10 bit, non-4:2:0 pixel formats and film grain on the GPU

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

Jean-Baptiste Kempf: dav1d 0.7.0: mobile focus

Mer om förbättringarna i 2.0.0: https://groups.google.com/a/webmproject ... Cf0oKnBwAJ

AV1 Turns 2.0 (Streaming Learning Center)

Dav1d 0.7 Speedups Are Looking Great On Various Intel + AMD CPUs (Phoronix)

Chromium Blog: Celebrating 10 years of WebM and WebRTC

Dav1d 0.7.1 ‘Frigatebird’:

0.7.1 is a minor update on 0.7.0:

• ARM32 NEON optimizations for itxfm, which can give up to 28 % speedup, and MSAC
• SSE2 optimizations for prep_bilin and prep_8tap
• AVX2 optimizations for MC scaled
• Fix a clamping issue in motion vector projection
• Fix an issue on some specific Haswell CPU on ipred_z AVX2 functions
• Improvements on the dav1dplay utility player to support resizing

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

SVT-AV1 v0.8.4
[0.8.4] - 2020-06-26

Build and Testing

• Bug fixes
• Improve CI
• Improve Unit Test Coverage
• Address C vs asm mismatches
• Fix static analysis warnings / errors
• Add address sanitizer
• Various ffmpeg patch fixes

https://github.com/OpenVisualCloud/SVT- ... tag/v0.8.4

libVPX 1.9.0 ”Quacking Duck” är på gång. RC1 har släppts.

libvpx v1.9.0-rc1

https://chromium.googlesource.com/webm/ ... v1.9.0-rc1

libvpx v1.9.0 Quacking Duck Released

What’s new:

This release adds support for NV12, a separate library for rate control, as well as incremental improvements.

• Upgrading:
  
  • NV12 support is added to this release.
  • A new interface is added for VP9 rate control. The new library libvp9rc.a must be linked by applications.
  • Googletest is updated to v1.10.0.
  • simple_encode.cc is compiled into a new library libsimple_encode.a with CONFIG_RATE_CTRL.

• Enhancement:
  
  • Various changes to improve VP9 SVC, rate control, quality and speed to real time encoding.

• Bug fixes:
  
  • Fix key frame update refresh simulcast flexible svc.
  • Fix to disable_16x16part speed feature for real time encoding.
  • Fix some signed integer overflows for VP9 rate control.
  • Fix initialization of delta_q_uv.
  • Fix condition in regulate_q for cyclic refresh.
  • Various fixes to dynamic resizing for VP9 SVC.

https://chromium.googlesource.com/webm/ ... ags/v1.9.0

Det är inte varje år som Vorbis-kodaren libvorbis uppdateras, men för drygt en månad sedan skedde det, då 1.3.7 släpptes:

libvorbis 1.3.7 (2020-07-04) — “Xiph.Org libVorbis I 20200704 (Reducing Environment)”

https://github.com/xiph/vorbis/releases

https://xiph.org/downloads/

Sedan jag senast skrev om AV1-kodaren Rav1e, har två nya versioner släppts, 0.32 och 0.33:

https://github.com/xiph/rav1e/releases/tag/v0.3.2
https://github.com/xiph/rav1e/releases/tag/v0.3.3

SVT-AV1 v0.8.5
[0.8.5] - 2020-09-04

Relicensing notice

• Change the outbound license from BSD+Patent to the AOM license / patent

Encoder

• Added tpl support to adaptively change lambda and quantization parameters within the frame
• Added multi staged hme support
• Quality speed trade-offs tuned to VOD use cases
• Added first level non-optimized support for 2pass VBR and CRF
• Added combined cli two pass support with options for stats being written to a memory buffer and a specified file
• Added non square partitioning optimizations
• Improved lambda generation

Build and Testing

• Bug fixes
• Improve CI
• 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 lined to ffmpeg

https://github.com/OpenVisualCloud/SVT- ... tag/v0.8.5

Rav1e 0.3.4

Improvements

• Android support
• iOS support
• Updated dependencies(dav1d, aom)
• Fix Desync in some 4K Clips
• Fix Desync with regard to inter-split bottom-up search
• Fix compilation of AArch64 target with clang as assembler.

https://github.com/xiph/rav1e/releases/tag/v0.3.4