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OpenBSD 7.9 release · amd64 · Generated 2026-09-09

x264-20250909

free H.264/MPEG-4 AVC encoder

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Description

x264 is a free software library and application for encoding video streams into the H.264/MPEG-4 AVC format. Encoder features: * 8x8 and 4x4 adaptive spatial transform * Adaptive B-frame placement * B-frames as references / arbitrary frame order * CAVLC/CABAC entropy coding * Custom quantization matrices * Intra: all macroblock types (16x16, 8x8, 4x4, and PCM with all predictions) * Inter P: all partitions (from 16x16 down to 4x4) * Inter B: partitions from 16x16 down to 8x8 (including skip/direct) * Interlacing (MBAFF) * Multiple reference frames * Ratecontrol: constant quantizer, constant quality, single or multipass ABR, optional VBV * Scenecut detection * Spatial and temporal direct mode in B-frames, adaptive mode selection * Parallel encoding on multiple CPUs * Predictive lossless mode * Psy optimizations for detail retention (adaptive quantization, psy-RD, psy-trellis) * Zones for arbitrarily adjusting bitrate distribution

Package information

Ports path
multimedia/x264
Package architecture
amd64
Maintainer
Brad Smith <brad@comstyle.com>
Categories
multimedia
Available flavors
None listed
Only for architectures
aarch64, amd64, arm, i386, mips64, mips64el, powerpc, powerpc64, riscv64, alpha, hppa, sparc64

These are ports metadata. Binary availability depends on the release, architecture and mirror. Build and test dependencies are not an installation checklist.

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