[聊天]x264开始使用mbtree了呢~

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Macroblock-tree ratecontrol
On by default; can be turned off with --no-mbtree.
Uses a large lookahead to track temporal propagation of data and weight quality accordingly.
Requires a very large separate statsfile (2 bytes per macroblock) in multi-pass mode.
Doesn't work with b-pyramid yet.
Note that MB-tree inherently measures quality different from the standard qcomp method, so bitrates produced by CRF may change somewhat.
This makes the "medium" preset a bit slower. Accordingly, make "fast" slower as well, and introduce a new preset "faster" between "fast" and "veryfast".
All presets "fast" and above will have MB-tree on.
Add a new option, --rc-lookahead, to control the distance MB tree looks ahead to perform propagation analysis.
Default is 40; larger values will be slower and require more memory but give more accurate results.
This value will be used in the future to control ratecontrol lookahead (VBV).
Add a new option, --no-psy, to disable all psy optimizations that don't improve PSNR or SSIM.
This disables psy-RD/trellis, but also other more subtle internal psy optimizations that can't be controlled directly via external parameters.
Quality improvement from MB-tree is about 2-70% depending on content.
Strength of MB-tree adjustments can be tweaked using qcompress; higher values mean lower MB-tree strength.
Note that MB-tree may perform slightly suboptimally on fades; this will be fixed by weighted prediction, which is coming soon.

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最初由 superkidx 发布
以前的AQ1就是同一帧内的不同区块不同Q
AQ2是帧间也不同

后来AQ1取消了 AQ2变成默认AQ

现在又来了个AQ2

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1、如果1pass是crf+mbtree的话 mbtree的作用就体现在crf最终给出的码率上了 所以不能说2pass是bitrate mode就没用到mbtree的成果
2、即使是全程bitrate，mbtree的作用是在每个mb到底用何种模式编码，分配多少bits，而不是全帧的码率。指定码率就相当于给了总和A，但各分项a1 a2 a3...仍然有无限多种可能性一样

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最初由 264768502 发布
目前半自动里比较常用的就是TIVTC了..而且有人写过教程,也有人翻译出了完整的中文说明文档

然后还有些别的脚本,调用各个不同的滤镜来做反交错的,比如AAD,AnimeIVTC等等