WebM, tretton år senare

[JoWa]

Libvpx 1.8.1 är på gång. Beskrivningen är dock rätt märklig.

Orpington Duck Release Candidate

The Orpington Duck is a hybrid composed of ducks from previous libvpx releases: Aylesbury (v0.9.5), Cayuga (v0.9.7), and Indian Runner (v1.4.0). We will be finalizing a v1.8.1 release soon. If you have any issues with the current branch please let us know.

[JoWa]

SVT-AV1 v0.6.0

Nu också med avkodare.

• Inital decoder implementation
• Static library support
• Alt-ref pictures – temporal filtering
• Adaptive Transform Block for INTRA
• Adaptive QP scaling
• Decoder – Support for Tiles and 10bit
• API – add option to calculate / report PSNR values
• Support for segmentation
• SIMD Optimizations
• Downsampling 2×2 filtering
• Handle incomplete SBs
• MACROS / trailing / tabs-spaces cleanup

[JoWa]

libvpx 1.8.1: Orpington Duck Release (v1.8.1)

https://chromium.googlesource.com/webm/libvpx/+/v1.8.1

[JoWa]

FFmpeg 4.2 ”Ada” har släppts, med bland annat AV1-avkodning med Dav1d.

https://ffmpeg.org/index.html#pr4.2

[JoWa]

SVT-AV1 v0.7.0

[0.7.0] - 2019-09-26

Encoder

• Enhanced MRP Reference Frames
• Intra Inter Compound
• QP Modulation support
• MFMV Support
• MD Staging design [Up to 4 MD stages and 3 prediction classes: Intra / Inter / Compound]
• Compound Motion prediction
• 10-bit Mode Decision support for Intra
• Thread safe resource allocation
• Added AVX512 Optimizations
• Added AVX2 Optimizations

Decoder

• Screen Content Tools
• Temporal MV scan support
• Inter support
• Screen Content Tools support
• Post Processing Filters support
• Compound Mode (InterInter & InterIntra) Tool support
• Decoder Film Grain support

[JoWa]

Det finns nu ytterligare en AV1-avkodare, libgav1: https://chromium.googlesource.com/codecs/libgav1/

[JoWa]

Det finns nu ytterligare en AV1-avkodare, libgav1: https://chromium.googlesource.com/codecs/libgav1/

Phoronix visar att den nya libgav1 är mycket långsammare än Dav1d:

DAV1D vs. LIBGAV1 Performance – Benchmarking Google’s New AV1 Video Decoder

[JoWa]

SVT-VP9 v0.1.0

Intel SVT-VP9 Finally Makes Its First Pre-Release For Speedy VP9 Encoding (Phoronix)

AV1 is ready for prime time: SVT-AV1 beats x265 and libvpx in quality, bitrate and speed (Ewout ter Hoeven)

[JoWa]

Dav1d 0.5.0 ‘Asiatic Cheetah’:

0.5.0 is a medium release fixing regressions and minor issues, and improving speed significantly:

• Export ITU T.35 metadata
• Speed improvements on blend_ on ARM
• Speed improvements on decode_coef and MSAC
• NEON optimizations for blend*, w_mask_, ipred functions for ARM64
• NEON optimizations for CDEF and warp on ARM32
• SSE2 optimizations for MSAC hi_tok decoding
• SSSE3 optimizations for deblocking loopfilters and warp_affine
• AVX-2 optimizations for film grain and ipred_z2
• SSE4 optimizations for warp_affine
• VSX optimizations for wiener
• Fix inverse transform overflows in x86 and NEON asm
• Fix integer overflows with large frames
• Improve film grain generation to match reference code
• Improve compatibility with older binutils for ARM
• More advanced Player example in tools

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

Phoronix har mätt och jämfört med 0.4.0:

Dav1d 0.5 Released With AVX2, SSSE3 & ARM64 Performance Improvements - Benchmarks

[JoWa]

Rav1e Rust AV1 Encoder Adds SSSE3 Support, AArch64 NEON – But It’s Still Slow (Phoronix)

Rav1e finns här: https://github.com/xiph/rav1e/releases

[JoWa]

Dav1d 0.5.1 ‘Asiatic Cheetah’:

0.5.1 is a small release improving speeds and fixing minor issues compared to 0.5.0:

• SSE2 optimizations for CDEF, wiener and warp_affine
• NEON optimizations for SGR on ARM32
• Fix mismatch issue in x86 asm in inverse identity transforms
• Fix build issue in ARM64 assembly if debug info was enabled
• Add a workaround for Xcode 11 -fstack-check bug

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

[JoWa]

Rav1e 0.1.0 har släppts.

Rav1e är en AV1-kodaren skriven i Rust.

First official release, published during the Video Dev Days 2019 in Tokyo.

Features

• Intra and inter frames
• 64×64 superblocks
• 4×4 to 64×64 RDO-selected square and 2:1/1:2 rectangular blocks
• DC, H, V, Paeth, smooth, and a subset of directional prediction modes
• DCT, (FLIP-)ADST and identity transforms (up to 64×64, 16×16 and 32×32 respectively)
• 8-, 10- and 12-bit depth color
• 4:2:0 (full support), 4:2:2 and 4:4:4 (limited) chroma sampling
• 11 speed settings (0–10)
• Near real-time encoding at high speed levels
• Rate control (single-pass and two-pass)
• Temporal RDO
• Scene cut detection
• CLI tool and C API

https://github.com/xiph/rav1e/releases/tag/0.1.0

[JoWa]

SVT-AV1 v0.7.5

[0.7.5] - 2019-11-24

Encoder

• RDOQ for 10-bit
• Inter Intra Class pruning at MD-Staging
• Global Motion Vector support for 8-bit and 10-bit
• Interpolation Filter Search support for 10-bit
• Palette Prediction support
• 2-pass encoding support
• ATB 10-bit support at the encode pass
• Simplified MD Staging [only 3 stages]
• Inter-Inter and Inter-Intra Compound for 10-bit
• Intra Paeth for 10-bit
• Filter Intra Prediction
• New-Near and Near-New support
• OBMC Support for 8-bit and 10-bit
• RDOQ Chroma
• ATB Support for Inter Blocks
• Temporal Filtering for 10-bit
• Eight-pel support in predictive ME
• MCTS Tiles support
• Added AVX512 Optimizations
• Added AVX2 Optimizations

Decoder

• SuperRes support
• Reference Frame Scaling support
• 12-bit support
• Annex B support

[JoWa]

Dav1d 0.5.2 ‘Asiatic Cheetah’:

0.5.2 is a small release improving speed for ARM32 and adding minor features:

• ARM32 optimizations for loopfilter, ipred_dc|h|v
• Add section-5 raw OBU demuxer
• Improve the speed by reducing the L2 cache collisions
• Fix minor issues

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

[JoWa]

Pekin Duck Release Candidate

Ett försläpp av den kommande libvpx 1.8.2.

[JoWa]

Rav1e 0.2.0 har släppts, och är åtskilligt snabbare än 0.1.0.

v0.2.0: Yuletide Greetings

Improvements

• Faster, overall 40%-70% faster than v0.1.0 depending on the encoding settings.
• Optional serialization/deserialization of the encoding parameters through the feature serialize
  • Optional cli advanced commands to use it.
• The builds are now using the dwarf debug format for the targets that support it, before it was a mixture of dwarf and stabs due to the nasm defaults.
• Added a --benchmark hidden flag for the cli for MacOS and Linux.
• documentation is now available on docs.rs.

Changes

• Segmentation support is now a tunable SpeedSetting and currently it is default off since it can produce desyncs, this does cause a 3% decrease in quality.

Fixes

• #1903 - edge-of-frame miscomputation
• #1858 - desync on speed 0 and 1 when certain quantizers are selected

Known issues

• #1930 - segmentation encoding may cause desync

https://github.com/xiph/rav1e/releases/tag/v0.2.0

[JoWa]

Libvpx, referensimplementering för VP8 och VP9, har nu släppts i en ny version, 1.8.2.

Pekin Duck Release (v1.8.2)

https://chromium.googlesource.com/webm/libvpx/+/v1.8.2

[JoWa]

SVT-AV1 v0.8.0

[0.8.0] - 2019-12-20

Encoder

• Preset Optimizations
• Single-core execution memory optimization [-lp 1 -lad 0]
• Rate estimation update enhancements
• On / off flags for feature run-time switching
• Auto-max partitioning algorithm support
• Multi-pass partitioning depth support
• Remove deprecated RC mode 1 and shifter RC mode 2 and mode 3 to mode 1 and mode 2 respectively
• Update cost calculation for CDEF Filtering
• Intra-Inter compound for 10-bit
• Eigth-pel optimization
• AVX512 Optimizations
• AVX2 Optimizations

Decoder

• Initial multi-threading support
• Decoder optimizations / cleanup

Build and Testing

• Bug fixes
• Improve CI
• Improve Unit Test Coverage
• Address C vs asm mismatches

[JoWa]

A Look At How Some Video Encoders Saw Their Performance Shift This Year With SVT AV1/VP9 Ascending (Phoronix)

[JoWa]

Netflix Now Streaming AV1 on Android (Netflix Technology Blog)

Today we are excited to announce that Netflix has started streaming AV1 to our Android mobile app. AV1 [libaom] is a high performance, royalty-free video codec that provides 20% improved compression efficiency over our VP9 [libvpx] encodes.