A free h265/HEVC encoder
x265 is a free library for encoding next-generation H265/HEVC video streams.
- Developed at Staging
- 4 derived packages
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Revision 38 (latest revision is 43)
- Update to version 3.3 New features: * Adaptive frame duplication** to identify and skip encoding of near-identical frames and signal the duplication info to the decoder via pic_struct SEI. :option:`frame-dup` to enable frame duplication and :option:`--dup-threshold` to set the threshold for frame similarity (optional). * Boundary aware quantization** to cut off bits from frames following scene-cut. This leverages the inability of HVS to perceive fine details during scene changes and saves bits. :option:`--scenecut-aware-qp` , :option:`--scenecut-window` and :option:`--max-qp-delta` to enable boundary aware frame quantization, to set window size (optional) and to set QP offset (optional). * Improved scene-cut detection** using edge and chroma histograms. :option:`--hist-scenecut` to enable the feature and :option:`--hist-threshold` (optional) to provide threshold for determining scene cuts. Enhancements to existing features: * :option:`--hme-range` to modify search range for HME levels L0, L1, and L2. * Improved performance of AQ mode 4 by reducing memory foot print. * Introduced :option:`--analysis-save-reuse-level` and :option:`--analysis-load-reuse-level` to de-couple reuse levels of :option:`--analysis-save` and :option:`--analysis-load`. Turnaround time of ABR encoding can be reduced by properly leveraging these options. Encoder enhancements: * Improved VBV lookahead to eliminate blocky artifacts in
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