Intel-Media-SDK/MediaSDK intel-mediasdk-20.1.0

Media SDK 20.1.0

on GitHub

This release of Intel® Media SDK is part of open source release of media stack. Component revisions included into package:

• Media SDK and Samples: https://github.com/Intel-Media-SDK/MediaSDK/releases/tag/intel-mediasdk-20.1.0
• Driver: https://github.com/intel/media-driver/releases/tag/intel-media-20.1.1
• Gmmlib: https://github.com/intel/gmmlib/releases/tag/intel-gmmlib-20.1.1
• libva: https://github.com/intel/libva/releases/tag/2.7.0
• libva-utils: https://github.com/intel/libva-utils/releases/tag/2.7.1

Release validated with:

• OpenCL runtime: https://github.com/intel/compute-runtime/releases/tag/20.10.16087

Documentation
Documentation for this release published in release branch.

What's new Media SDK 20.1.0:

• API 1.32

  • Added Screen Content Coding (SCC) support to HEVC

• HEVC encode

  • Component received major refactoring which limited cyclomatic complexity and made codec feature set composable
  • Enabled Sliding Window support
  • Enabled Weighted Prediction support
  • Enabled Fade Detection support
  • Fixed per-macroblock QP setting (MBQP)

• VP9 encode

  • Stability improvement

• AVC encode

  • Enable arbitrary reference field polarity on Broadwell and Skylake
  • Following attributes calculated based on media-driver capabilities instead of harcoded values:
    • Supported color formats: 8-bit only, 10-bit

• MPEG-2 encode

  • Following attributes calculated based on media-driver capabilities instead of harcoded values:
    • Picture size limits
    • Frame skip support
    • Slice structure

• HEVC decode

  • Added support for SCC

• VP9 decode

  • Improved DRC handling

• VPP

  • Fixed Motion-Compensated Temporal Filter (MCTF) on Icelake
  • Added mirroring support on Tigerlake

• Samples

  • Improved 12-bit format support
  • Added command line option which force use fixed function (low-power) version of components where available
  • Documented ROI file format for sample_multi_transcode
  • Added BitrateLimit to command line option
  • Metrics Monitor let user specify a path to gfx device

• Misc

  • Transient media surfaces used to perform system to gpu copying now allocated internally, bypassing user-supplied allocator
  • Build: version stored in root CMakeFile.txt, allowing suffix customization using MEDIA_VERSION_EXTRA define

• Software requirements

  • Libdrm 2.4.84 or later
  • Kernel 4.14 or later (5.4 recommended, consult kernel support matrix wiki page for details)

• Known issues

  • Kernel 5.0 have known issue with endurance on Skylake see https://bugs.freedesktop.org/show_bug.cgi?id=110285 for details.
  • Media Stack 20.1 with Linux kernel 5.0 may cause higher CPU usage and instability in endurance testing. Issue root caused to media driver see intel/media-driver#671 for details.

Windows support
Samples and dispatcher (API 1.32) supported by Windows Intel(r) graphics driver since 26.20.100.8141 https://downloadcenter.intel.com/product/80939/Graphics-Drivers.

• Limited support on certain platforms:
  • MPEG-2 encode is not supported on Apollo Lake
  • H.264 Flexible Encode Infrastructure only supported on Broadwell and Skylake
  • Multi Frame Encode (MFE), HEVC Flexible Encode Infrastructure only supported on Skylake
  • VP9 decoder is only supported on Kabylake, Coffeelake and Icelake
  • VP9 encoder is only supported on Icelake platform
  • Support for Tigerlake, Elkhartlake and Jasperlake platforms is preliminary and may not be fully functional
  • SW fallback is unsupported for all components but MJPEG