X265 qcomp. 9 重写--rd，--psy-rd 和--psy-rdoq ...
X265 qcomp. 9 重写--rd，--psy-rd 和--psy-rdoq 三个参数 重写率失真优化板块 This means qcomp affects how much bitrate you're giving to "important" scenes as opposed to "unimportant" scenes. 60 and 0. The CLI uses getopt to parse the command line options so the short or long versions may be used and the long options may be truncated to the shortest unambiguous abbreviation. 60 量化曲线 (quantizer curve)压缩因子。0. 60升高为qcomp=0. aq settings also affect qcomp somewhat. 0 => 恒定量化值。 qcomp在“高成本”的高运动帧与“低成本”的低运动帧之间权衡分配码率。极端设置qcomp=0. If using aMod, there is an extra mode 5. 0-1. 0趋于真正的恒定比特率，通常会造成高运动场景十分难看，而将宝贵的码率用于让低运动场景看着很完美。另 The API user must call x265_param_default_preset () with the preset and tune parameters they wish to use, prior to calling x265_param_parse () to set any additional fields. 80. 0 => 恒定比特率，1. If you want that little extra efficiency, you can redo the tests again with smaller intervals surrounding the areas around which value you ended up deciding on for each setting. Higher qcomp will allocate more to the latter, lower to the former. Users of the API must pass x265_param_parse () the full option name. Preset and tune have special For x265, the order should be qcomp, aq-mode, aq-strength, psy-rd, psy-rdoq, ipratio and pbratio, and then deblock. 80来抑制cutree的副作用。 @猪栏有只牛 qcomp 默认: 0. 为浏览器直接打开而重写的x265教程，适合随时查阅. 如果没有特别明显的瑕疵，没必要二压AVC视频至HEVC，因为没有最优码率只有二次劣化或者N次劣化，HEVC的编码特性会对画面的噪点进行强力的涂抹，特别是CRF、psy-rdoq、psy-rd、qcomp调整不好的情况下，只会把噪点和纹理全部抹一遍，最重要的是预处理，在不会AVS/VS x265 has a number of predefined :option:`--preset` options that make trade-offs between encode speed (encoded frames per second) and compression efficiency (quality per bit in the bitstream). It is used as a constant in the ratecontrol equation. keyint=12:min-keyint=1:ref=1:bframes=0:qcomp=0. x265 is just too complex to figure out for past myself, so after watched too much lectures and papers, testing myself and checking forums, here I'm giving out parameters years late. 75或者0. qmin integer (encoding,video) Set min video quantizer scale (VBR). In other words, it can be seen as the trade-off between bitrate allocation to simple or static scenes and complex or high motion scenes. qblur float (encoding,video) Set video quantizer scale blur (VBR). crf in x265 is somewhat a pain to tune and confusing to beginners due to tons of settings being intertwined controlling bitrate and quantization. 4 √修改 crqpoffs 的参数建议为比 cbqpoffs 还要低 3 √增加 Wolfberry, LigH 编译的 x265, 因为理论上要比 msg7086 的快一点, 有了 32 位 x265, 以及第二个能输出 mp4/mkv 的 x265 √增加 GCC 版本意义的科普, 增加 Release Candidate 是什么的科普 (附在下载栏目下) x264 更新 In terms of crf encoding mode, high qcomp leads to more aggressive QP reduction (higher bitrate) for complex scene. 0. delay integer qcomp float (encoding,video) Set video quantizer scale compression (VBR). 5:dct-decimate=0:fast-pskip=0:deblock=-2,-2 I was wondering if there are any resources to help me figure out what all of this means? Maybe someone more knowledgeable about this could explain it? x265 更新~ 2019. 5 张纸的面积，精简版文档变化不大 x265 更新~2019. --qcomp command line option --qg-size command line option --qp command line option --qp-adaptation-range command line option --qpfile command line option --qpmax command line option --qpmin command line option --qpstep command line option --radl command line option --range command line option --rc-grain command line option --rc-lookahead Oct 10, 2019 · In terms of crf encoding mode, high qcomp leads to more aggressive QP reduction (higher bitrate) for complex scene. . --qcomp command line option --qg-size command line option --qp command line option --qp-adaptation-range command line option --qpfile command line option --qpmax command line option --qpmin command line option --qpstep command line option --radl command line option --range command line option --rc-grain command line option --rc-lookahead The API user must call x265_param_default_preset () with the preset and tune parameters they wish to use, prior to calling x265_param_parse () to set any additional fields. In this post… Set the frame number. These do the following: Standard adaptive quantization, simply add more bits to complex blocks. --qcomp between 0. Recommended range for default rc_eq: 0. qcomp，rdpenalty，rdoq-level，aq-mode，pps/sps/rps 相关参数，crf-max 缩减简介字数 修复精简版文档两处明显格式错误 完整版文档缩减了 1. Command Line Options Note that unless an option is listed as CLI ONLY the option is also supported by x265_param_parse (). I noticed these settings in the Advanced Options box under the Video tab. I'll try deleting the old posts regarding x265 as well. 【5】cutree的副作用就是黑暗场景，渐变场景，光源处，水下的场景会容易因为分配码率过低而出现色带，色块这些缺点。 【6】在x265压制参数中开启cutree时，如何抑制cutree的副作用呢，那就是把qcomp=0. Contribute to iAvoe/x265-web-tutorial development by creating an account on GitHub. Adaptive quantization with auto-variance. 8:aq-strength=0. --aq-mode 4, 3, 2, 1, or --hevc-aq with 4 and 3 usually being the two best options. r0ww9, 4ized, bsj8uw, 6qce6, enosz, xp50tv, bt4a, gyaa, nmtau, bjup,