终于在 Handbrake 上复刻出了压制领域真神小丸工具箱的效果

在流媒体视频分发这一块，很长一段时间里小丸工具箱都是唯一真神，因为它有一套极其深度优化的特调压制参数，可以把视频压制到一个惊人的低码率的同时，还能保留非常高的质量。

不做参数优化的情况下 Handbrake 对于这段视频只有 76 分

搜了 Handbrake 的很多教程，基本都是教界面怎么用，CRF 调多少，编码器选什么，最多就是把 Profile 调成 Slow，Preset 调成 High 这种基础动作。

多数时候，一样的 CRF 获得的视频码率基本是一致的，但最终图像质量却有着天差地别，尤其是当我拍摄一段夕阳或者天空的场景时，能够很明显地看到 Handbrake 色彩断层比小丸更加严重。

所以琢磨了好一阵子，我终于把小丸的进阶 x264 参数复刻到了 Handbrake 上，使他们拥有一致的 vmaf 评分的同时，在 1080P 下还能获得 50% 的编码速度提升：

这下终于能够在享受现代化的队列管理、灵活的音轨视频轨字幕轨映射的同时，还能获得和小丸一样的压制质量了。

参数

保存为 json，预设→从文件导入

{
  "PresetList": [
    {
      "AlignAVStart": true,
      "AudioCopyMask": [],
      "AudioEncoderFallback": "av_aac",
      "AudioLanguageList": ["any"],
      "AudioList": [
        {
          "AudioBitrate": 256,
          "AudioCompressionLevel": 0,
          "AudioEncoder": "av_aac",
          "AudioMixdown": "stereo",
          "AudioNormalizeMixLevel": false,
          "AudioSamplerate": "auto",
          "AudioTrackQualityEnable": false,
          "AudioTrackQuality": -1,
          "AudioTrackGainSlider": 0,
          "AudioTrackDRCSlider": 0
        }
      ],
      "AudioSecondaryEncoderMode": true,
      "AudioTrackSelectionBehavior": "all",
      "ChapterMarkers": true,
      "ChildrenArray": [],
      "Default": true,
      "FileFormat": "av_mp4",
      "Folder": false,
      "FolderOpen": false,
      "Optimize": true,
      "Mp4iPodCompatible": false,
      "PictureCropMode": 0,
      "PictureBottomCrop": 0,
      "PictureLeftCrop": 0,
      "PictureRightCrop": 0,
      "PictureTopCrop": 0,
      "PictureDARWidth": 1920,
      "PictureDeblockPreset": "off",
      "PictureDeblockTune": "medium",
      "PictureDeblockCustom": "strength=strong:thresh=20:blocksize=8",
      "PictureDeinterlaceFilter": "decomb",
      "PictureCombDetectPreset": "default",
      "PictureCombDetectCustom": "","PictureDeinterlacePreset":"default","PictureDeinterlaceCustom":"",
      "PictureDenoiseCustom": "","PictureDenoiseFilter":"off","PictureSharpenCustom":"",
      "PictureSharpenFilter": "off",
      "PictureSharpenPreset": "medium",
      "PictureSharpenTune": "none",
      "PictureDetelecine": "off",
      "PictureDetelecineCustom": "","PictureColorspacePreset":"off","PictureColorspaceCustom":"",
      "PictureChromaSmoothPreset": "off",
      "PictureChromaSmoothTune": "none",
      "PictureChromaSmoothCustom": "","PictureItuPAR": false,"PictureKeepRatio": true,"PicturePAR":"auto","PicturePARWidth": 1,"PicturePARHeight": 1,"PictureWidth": 3840,"PictureHeight": 2160,"PictureUseMaximumSize": true,"PictureAllowUpscaling": false,"PictureForceHeight": 0,"PictureForceWidth": 0,"PicturePadMode":"none","PicturePadTop": 0,"PicturePadBottom": 0,"PicturePadLeft": 0,"PicturePadRight": 0,"PresetName":"1080P x264 xiaowan","Type": 1,"SubtitleAddCC": false,"SubtitleAddForeignAudioSearch": false,"SubtitleAddForeignAudioSubtitle": false,"SubtitleBurnBehavior":"none","SubtitleBurnBDSub": false,"SubtitleBurnDVDSub": false,"SubtitleLanguageList": ["any"],"SubtitleTrackSelectionBehavior":"none","VideoAvgBitrate": 0,"VideoColorMatrixCode": 0,"VideoEncoder":"x264","VideoFramerateMode":"vfr","VideoGrayScale": false,"VideoScaler":"swscale","VideoPreset":"slow","VideoTune":"",
      "VideoProfile": "high",
      "VideoLevel": "auto",
      "VideoOptionExtra": "ref=4:bframes=3:me=umh:keyint=600:min-keyint=1:deblock=1,1:scenecut=60:qcomp=0.5:psy-rd=0.3,0:aq-mode=2:aq-strength=0.8",
      "VideoQualityType": 2,
      "VideoQualitySlider": 24,
      "VideoMultiPass": true,
      "VideoTurboMultiPass": true,
      "x264UseAdvancedOptions": false,
      "PresetDisabled": false,
      "MetadataPassthrough": true
    }
  ],
  "VersionMajor": 56,
  "VersionMicro": 0,
  "VersionMinor": 0
}