Changes between Version 15 and Version 16 of Encode/H.265


Ignore:
Timestamp:
Oct 15, 2019, 5:56:44 AM (5 months ago)
Author:
nopro404
Comment:

correct the information about -preset

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  • Encode/H.265

    v15 v16  
    2929* Choose a CRF. The default is 28, and it should visually correspond to libx264 video at CRF 23, but result in about half the file size. Other than that, CRF works just like in x264.
    3030
    31 * Choose a preset. The default is `medium`. The preset determines how fast the encoding process will be – at the expense of compression efficiency. Put differently, if you choose `ultrafast`, the encoding process is going to run fast, but the file size will be larger when compared to `medium`. The visual quality will be the same. Valid presets are `ultrafast`, `superfast`, `veryfast`, `faster`, `fast`, `medium`, `slow`, `slower`, `veryslow` and `placebo`.
     31* Choose a preset. The default is `medium`. The preset determines how fast the encoding process will be at the expense of detail. Put differently, if you choose `ultrafast`, the encoding process is going to run fast, and the file size will be smaller when compared to `medium`. The visual quality will not be as good. Slower presets use more memory. Valid presets are `ultrafast`, `superfast`, `veryfast`, `faster`, `fast`, `medium`, `slow`, `slower`, `veryslow` and `placebo`.
    3232
    3333* Choose a tune. By default, this is disabled, and it is generally not required to set a tune option. x265 supports the following `-tune` options: `psnr`, `ssim`, `grain`, `zerolatency`, `fastdecode`. They are rexplained in the [[H.264#crf|H.264 guide]].