CHANGELOG.md

Intel® Media SDK open source

Whats new

• Add MCTF support
• API 1.26

Intel® Media SDK open source release v1.3!

Whats new

• Add SCD support
• API 1.25
• 1:N performance improvements
• Support open source Intel® Media Driver for VAAPI
• Multi-Frame encode APIs support added helping to improve transcoding dencity in multi-stream scenario, following known limitations apply to current implementation:
  • Only H264 Encode is supported at a moment.
  • Optimized only for Xeon E3 1500 v5 series.
  • Performance can be worse than usual single-frame in next known cases:
    • 4K resolution encoding.
    • N:N with HEVC decode present in pipeline.
    • cases where framerates differs significantly like 30 and 60 for different streams.
  • Following functionality is not supported with multi-frame encode operation and when set, multiframe will be disabled:
    • When number of slices is controlled by parameters NumSlice, NumSliceI, NumSliceP, NumSliceB.
    • ‘intra refresh’ parameters are not supported.
  • MFX_MF_AUTO implemented at a moment.
  • FEI is not supported by open source driver for multiframe operation, proper SDK behavior is not validated.
  • Supported MaxNumFrames is 3, Only 2 will be used for next cases: EnableMBQP, EnableMAD, EnableMBForceIntra, MBDisableSkipMap.

Intel® Media SDK open source release v1.2!

Whats new

• Added User-defined Bitrate Control support
• Added C++ 11 support

Known limitations:

• Copy from video to system memory with mfxInitParam::GPUCopy = MFX_GPUCOPY_OFF leads to performance degradation up to x10 comparing to Intel® Media Server Studio release
• Intel® Media Server Studio limitations

Intel® Media SDK open source release v1.1!

Whats new

• Aligned with Intel® Media Server Studio 2017 R3, featuring CentOS 7.3 support
• Intel® Media Server Studio release notes

Intel® Media SDK first open source release!