Experimental feature.Īpplication-level feature -abr-ladder for automating efficient ABR ladder generation. rskip level 2 enables the feature and -rskip-edge-threshold denotes the minimum expected edge-density percentage within the CU, below which the recursion is skipped. QP spikes in the row-level VBV rate-control when WPP enabled.Įdge-aware quadtree partitioning to terminate CU depth recursion based on edge information. ![]() Incorrect VBV lookahead in -analysis-load + -scale-factor.Įncoder hang when VBV is used with slices. New x265_param options -min-vbv-fullness and -max-vbv-fullness to control min and max VBV fullness. ![]() Support for RADL pictures at IDR scene cuts: Improves coding efficiency with no significant impact on performance.īidirectional scene cut aware Frame Quantizer Selection: Saves bits than forward masking with no noticeable perceptual quality difference.Īdditions to x265_param structure to support the newly added features and encoder enhancements. Improved hist-based scene cut algorithm: Reduces false positives by leveraging motion and scene transition info. Real-time VBV for ABR (Average BitRate) encodes in –pass 2 using -vbv-live-multi-pass: Improves VBV compliance with no significant impact on coding efficiency.
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