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libSvtAv1Dec0-2.0.0-1.1 RPM for riscv64

From OpenSuSE Ports Tumbleweed for riscv64

Name: libSvtAv1Dec0 Distribution: openSUSE Tumbleweed
Version: 2.0.0 Vendor: openSUSE
Release: 1.1 Build date: Thu Mar 14 00:32:09 2024
Group: System/Libraries Build host: reproducible
Size: 858921 Source RPM: SVT-AV1-2.0.0-1.1.src.rpm
Summary: An AV1 decoder/encoder for video streams
The Scalable Video Technology for AV1 (SVT-AV1 Encoder and Decoder) is an
AV1-compliant encoder/decoder library core. The SVT-AV1 encoder development is
a work-in-progress targeting performance levels applicable to both VOD and Live
encoding / transcoding video applications. The SVT-AV1 decoder implementation
is targeting future codec research activities.






* Wed Mar 13 2024 Jan Engelhardt <>
  - Update to release 2.0
    * Changed the API signaling the End Of Stream (EOS) with the
      last frame vs with an empty frame
    * Removed the 3-pass VBR mode which changed the calling
      mechanism of multi-pass VBR
    * Improve the tradeoffs for the random access mode across
    * Improved the compression efficiency of presets M9-M13 by 1-4%
    * Replaced the 3-pass VBR with a 2-pass VBR
    * Memory savings of 20-35% for LP 8 mode in preset M6 and below
      and 1-5% in other modes/presets
* Tue Dec 12 2023 Jan Engelhardt <>
  - Update to release 1.8.0
    * 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
    * 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 4.5-8x fps speedup vs the c implementation
* Fri Nov 03 2023 Jan Engelhardt <>
  - Update to release 1.7.0
    * Encoder:
    * Improve the tradeoffs for the random access mode across
      presets MR-M13
    * Quality improvements across all presets and metrics ranging
      from 0.3% to 4.5% in BD-rate
    * Added an experimental tune SSIM mode yielding ~3-4%
      additional SSIM BD-rate gains
* Mon Jun 26 2023 Andreas Schwab <>
  - Enable build on riscv64
* Mon Jun 19 2023 Jan Engelhardt <>
  - Update to release 1.6.0
    * Improved the tradeoffs for the random access mode across
      presets M1-M13:
    * Speeding up the higher quality presets by 30-40%
    * Improving the BD-rate by 1-4% for the faster presets
    * Improved the tradeoffs for the low delay mode for both screen
      content and non-screen content encoding modes
    * Added a toggle to remove the legacy one-frame buffer at the
      input of the pipeline allowing the low delay mode to operate
      at sub-frame processing latencies
    * Added a new API allowing the user to specify quantization
      offsets for a region of interest per frame
* Thu Mar 30 2023 Guillaume GARDET <>
  - Enable build on aarch64
* Mon Jan 02 2023 Dirk Müller <>
  - update to 1.4.1:
    * Fix CRF with maxrate bug causing bitrate to be significantly limited for
      CRF encodings
    * Fix command line parsing forcing 1-pass in a 2-pass encoding mode when
      the --keyint=`x`s format is used
    * Fix decoder segfault due to assuming aligned buffers in the inverse
      transform assembly
* Mon Dec 05 2022 Dirk Müller <>
  - update to 1.4.0:
    * Adopted the 6L / 32-picture mini-GOP configuraion as default and
      adjusted MD feature levels accordingly yielding higher compression
      efficiency gains
    * Update the TPL model to account for the larger mini-gop size
    * Re-tune presets M0-M12 using the gained coding efficiency for improved
      quality vs cycles tradeoffs
    * Allow duplicate commandline parameters to be parsed and take into
      consideration the latter to allow AWCY integration
    * Build, Cleanup and Documentation
    * Make include and lib paths friendly to abs and rel paths
    * Update preset and API documentation
    * Various functional bug fixes
    * Remove manual prediction structure support
* Thu Oct 20 2022 Bjørn Lie <>
  - Update to release 1.3.0:
    * Encoder:
    - Port SIMD optimizations from libDav1D making the conformant
      path (Inv. Transform) faster
    - Enabling smaller mini-GOP size configurations and tuning it
      for the low delay mode
    - Tuning the low-latency mode in random access targeting
      latencies from 250ms to 1s
    - Adding GOP-constrained Rate Control targeting low-latency
      streaming applications
    - Optimize mode decision features levels for depth
      partitioning, RDOQ, MD stage0 pruning in-loop filtering
      temporal filtering and TPL adding more granularity and
      gaining further quality
    - Preset tuning M0-M13 to smooth the spacing and utilize the
      quality improvements towards better tradeoffs
    * Build, Cleanup and Documentation:
    - Update preset and API documentation
    - Various functional bug fixes
    - Remove the use of GLOB in cmake and use file names
  - Changes from release 1.2.1:
    * Encoder: Fix a crash at the end of the encode that may occur
      when an invalid metadata packet is sent with the EOS packet
    * Build, Cleanup:
    - y4m header pasring code cleanup
    - API cleanup and enhancements adding string options for RC
    - Added option to build without app / dec / enc using the / build.bat scripts
* Wed Aug 03 2022 Jan Engelhardt <>
  - Update to release 1.2.0
    * TPL tradeoff optimizations for 4L pred structure
    * Quality-vs-cycles tradeoff improvements across all presets
    * Add ability to force key_frame positions through ffmpeg for
      CRF mode
    * Minimize the quality impact of fast-decode while maintaining
      the decoder speedup
    * AVX2 optimizations for low delay mode
    * Improve CRF preset tradeoffs for both the default and
      fast-decode modes
    * Improve the SSIM-based tradeoffs of the presets without
      impacting those of PSNR / VMAF
    * Improve CBR mode by enhancing the bit-distribution within the
    * Added support for reference frame scaling
    * Added support for quantization matrices
    * AVX2 optimizations for low-delay mode
    * TPL-based VBR mode improvements
    * Improved Chroma RDOQ
    * Improve TPL QP Scaling
    * Add length info to ivf header
    * Fix support for metadata pass-through
    * Add ability to specify Chroma and Luma qindex offsets
      independently on top of CRF qp assignments
* Fri Apr 22 2022 Jan Engelhardt <>
  - Update to release 1.0.0
    * Added S-frames support
    * Added CBR Rate control mode for low delay
    * Added support for chroma position signaling
    * Added support for skipping denoising pictures after film
      grain synthesis
    * Extend fast-decode support to cover presets M0-M10
* Wed Feb 16 2022 Mia Herkt <>
  - Disable forced realtime scheduler priority
    By default, the encoder library will attempt to set realtime
    scheduler priority. Disable this behavior, as it serves no
    practical purpose (video encoding does not benefit from reduced
    process latency) and will only make the system unresponsive.
    (Additionally, it is arguably not a video encoder library’s job
    to manage scheduler priorities for the calling process.)
* Wed Jan 26 2022 Enrico Belleri <>
  - Update to 0.9.0
    * New faster presets M9-M12, M12 reaching similar complexity level to that of x264 veryfast
    * New multi-pass and single pass VBR implementation minimizing the quality difference vs CRF while reducing the cycle overhead
    * Quality vs density tradeoffs improvements across all presets in CRF mode
    * Added support for CRF with capped bitrate
    * Added support for overlay frames and super resolution
    * Fixed film grain synthesis bugs
    * Added experimental support for > 4k resolutions
    * Added experimental support for the low delay prediction structure
    * Significant memory reduction especially for faster presets in a multi-threaded environment
    * API configuration structure cleanup removing all invalid or out of date parameters
    * Speedup legacy CPUs for faster development by adding SSE code for corresponding C-kernels
    * Updated the code license from BSD 2-clause to BSD 3-clause clear
* Fri May 28 2021 Jan Engelhardt <>
  - Update to release 0.8.7
    * Feature optimizations: creating new mode decision /
      encode-decode feature levels allowing better speed / quality
      trade-off granularity.
    * Preset repositioning after adopting new levels.
    * Preset 8 achieving similar speed levels to that of x265
      medium in the VOD (shot-based encoding) use-case while
      maintaining quality gains.
    * New 1-pass and 2-pass VBR implementation ported from libaom
      and adapted to the SVT architecture.
  - Drop 1568-backport.patch (no longer applies)
  - Remove wrong Obsoletes/Provides



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Fabrice Bellet, Tue May 28 00:50:45 2024