vvenc-1.9.1-rc1

Bugfix release:

• fixed problems with 8-bit encoding, especially for 10-bit input
• improvements to rate control, especially spatial sub-sampling for first pass
• added medium_lowDecEnergy as a built-in preset
• many other fixes

vvenc-1.9.0

• added rate capping during rate control (must be at least 1.5x of target rate)
• extensive improvements and cleanups to rate control, especially single pass (improved efficiency by 1-2%)
• speedup of first pass, especially for preset faster (around 15% overall runtime), using spatio-temporal downsampling
• unified MCTF activation for low- and high-rate encoding
• various speedups, fixes, and cleanups

vvenc-1.9.0-rc3

Over 1.9.0-rc2:

• reduce single pass rate control deviation from given target bit-rate, when intra period is not a multiple of gop size (see #296)

Over 1.9.0-rc1:

• propagating missing data required for efficient RC in fast/faster presets when using QPA (bugfix)

Over 1.8.0:

• added rate capping during rate control (must be at least 1.5x of target rate)
• extensive improvements and cleanups to rate control, especially single pass (improved efficiency by 1-2%)
• speedup of first pass, especially for preset faster (around 15% overall runtime), using spatio-temporal downsampling
• unified MCTF activation for low- and high-rate encoding
• various speedups, fixes, and cleanups

vvenc-1.9.0-rc2

Over 1.9.0-rc1:

• propagating missing data required for efficient RC in fast/faster presets when using QPA (bugfix)

Over 1.8.0:

• added rate capping during rate control (must be at least 1.5x of target rate)
• extensive improvements and cleanups to rate control, especially single pass (improved efficiency by 1-2%)
• speedup of first pass, especially for preset faster (around 15% overall runtime), using spatio-temporal downsampling
• unified MCTF activation for low- and high-rate encoding
• various speedups, fixes, and cleanups

vvenc-1.9.0-rc1

• added rate capping during rate control (must be at least 1.5x of target rate)
• extensive improvements and cleanups to rate control, especially single pass (improved efficiency by 1-2%)
• speedup of first pass, especially for preset faster (around 15% overall runtime), using spatio-temporal downsampling
• unified MCTF activation for low- and high-rate encoding
• various speedups, fixes, and cleanups

vvenc-1.8.0

Over v1.8.0-rc1

• deprecated obsolete chroma QP control mechanism (to be removed in the next release)
• removed deprecated parameters for partitioning control

Over v1.7.0

• vvencFFapp removed from default installation
• Speedups (~15% for faster/~5% for slower/~10% for other presets)
• Improved error messages
• Added temporal ALF APS prediction, closing the efficiency gap between single- and multi-threaded operation
• Extended BIM by extrapolating parameters to non MCTF-filtered frames
• Various fixes
• Usability improvements
• Various improvements

vvenc-1.8.0-rc1

• vvencFFapp removed from default installation
• Speedups (~15% for faster/~5% for slower/~10% for other presets)
• Improved error messages
• Added temporal ALF APS prediction, closing the efficiency gap between single- and multi-threaded operation
• Extended BIM by extrapolating parameters to non MCTF-filtered frames
• Various fixes
• Usability improvements
• Various improvements

vvenc-1.7.0

Over v1.7.0-rc1

• Setting default ticks per second to 27000000
• Using MCTF to collect statistics for QPA, even if not applied

Over v1.6.1

• Added support for ARM through SIMDe
• Allowing adaptive intra period (content adaptive placement of random access points)
• Ported block importance mapping from VTM
  • around 1% gain for faster
  • around 2% BD-rate gain for other presets
• Added noise based QP clipping to RC
• Improved SCC detector to ignore black borders
• Added possibility of logo overlay
• Bugfixes and cleanups
• Speedups: ~20% for faster, ~5% for other presets

vvenc-1.7.0-rc1

• Added support for ARM through SIMDe
• Allowing adaptive intra period (content adaptive placement of random access points)
• Ported block importance mapping from VTM
  • around 1% gain for faster
  • around 2% BD-rate gain for other presets
• Added noise based QP clipping to RC
• Improved SCC detector to ignore black borders
• Added possibility of logo overlay
• Bugfixes and cleanups
• Speedups: ~20% for faster, ~5% for other presets

vvenc-1.6.1

Bugfix release:

• Bugfix for rate control at low rates
• Bugfix to multi-threaded encoding with tiles
• Added auto-logic for correct tickspersec setting
• Made apputils an internal header only lib, fixing linking problems
• Speedup non-linear ALF (-4% runtime for slower)
• Optimized non-RD-optimized quantization
• Various cleanups and fixes