x264 20150706 Description:
x264 is an open source and freely distributed command-line software that provides a capable H.264 and MPEG-4 AVC encoder tool for most GNU/Linux operating systems. The project is distributed as part of the VideoLAN project, which develops the powerful VLC Media Player software, and can be used to encode H264/AVC video streams. Key features include adaptive B-frame placement, support for custom quantization matrices, support for parallel encoding when running on computers with multiple CPUs, MBAFF (Macroblock-adaptive frame-field) interlacing, conjecture lossless mode, CAVLC and CABAC entropy coding, multi-references, Scene Cut detection, as well as 4x4 and 8x8 adaptive spatial transform. It uses B-frames as references, supports arbitrary frame order, supports multiple reference frames, uses zone to randomly adjust bitrate distribution, supports all macroblock types, including 4x4, 8x8, 16x16 and PCM with all predictions, supports all Inter P partitions from 16x16 down to 4x4, and all Inter B partitions from 16x16 down to 8x8, including direct and skip.