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2022/7/24 -CRF（固定品質）は数値できれいさを指定します。0～51 で指定し、「小さい方がきれい」です。H.265 の場合はデフォルトが 28 です。実質的な最小値は 24 ...

2010/12/25 -x264を用いてH.264にエンコードする場合、どの程度のビットレートや画質設定でエンコードするのが適切なのか、という問題がある。 x264でのエンコード ...

What is CRF encoding? · Video encoding takes raw video image data and bundles it up into a format that can be viewed inside other applications. · Most apps use ...

CRF is a bitrate-control setting, and sets a constant ratefactor. This is closely related to constant quantizer encoding, though CRF mode generally achieves ...

2023/9/23 -There are two rate control modes that are usually suggested for general use: Constant Rate Factor (CRF) or Two-Pass ABR. Rate control ...

2021/3/8 -Constant rate factor (CRF) is an encoding mode that adjusts the file data rate up or down to achieve a selected quality level rather than a ...

2023/9/27 -It's 18 for DVD/480p and goes up one with each doubling of resolution. 19 for 720p, 20 for 1080p/Blu Ray, etc etc.

2021/4/13 -H.264でエンコードする · 品質固定モード · crf値の選択 · ビットレート一定モード · プリセット · tune · H.264で互換性を高める · ダウンロードしながらの再生 ...

CRF represents a middle ground between CBR and VBR. It adjusts the bitrate dynamically like VBR, but it does so based on a constant quality target rather than ...

2017/2/24 -CRF is a “constant quality” encoding mode, as opposed to constant bitrate (CBR). Typically you would achieve constant quality by compressing ...