{"blog_url":"https://rasumus.hatenablog.com/","description":"2025 Nov. 02.2024 Feb. 16.2017 Feb. 04. \u30d5\u30a1\u30a4\u30eb\u3067\u306f\u306a\u3044\u3001FFMPEG\u306e\u5185\u90e8\u7684\u306a\u30a8\u30f3\u30b3\u30fc\u30c0\u30fc\u306e\u8a2d\u5b9a\u306e\u30d7\u30ea\u30bb\u30c3\u30c8 \u30fb\"-preset\"\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u6307\u5b9a\u3059\u308b ffmpeg -preset veryfast \u30fb\u6307\u5b9a\u3067\u304d\u308b\u30d7\u30ea\u30bb\u30c3\u30c8\u540d ultrafast superfast veryfast faster fast medium slow slower veryslow veryfast\u304c\u901f\u304f\u3066\u753b\u8cea\u3082\u7121\u96e3\u3002 \u30d5\u30a1\u30a4\u30eb\u306epreset \uff08 https://teratail.com/questions/30148 \u3088\u308a\uff09 i) vpre\u30aa\u30d7\u30b7\u30e7\u30f3, apre\u30aa\u30d7\u30b7\u30e7\u30f3\u2026","version":"1.0","categories":["\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"],"image_url":null,"title":"FFMPEG : \u30d5\u30a1\u30a4\u30eb\u3067\u306f\u306a\u304f\u5185\u90e8\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308bpreset","provider_url":"https://hatena.blog","published":"2025-11-02 15:39:00","author_url":"https://blog.hatena.ne.jp/rasumus/","provider_name":"Hatena Blog","width":"100%","blog_title":"rokkonet","height":"190","author_name":"rasumus","type":"rich","url":"https://rasumus.hatenablog.com/entry/2017/02/04/234200","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Frasumus.hatenablog.com%2Fentry%2F2017%2F02%2F04%2F234200\" title=\"FFMPEG : \u30d5\u30a1\u30a4\u30eb\u3067\u306f\u306a\u304f\u5185\u90e8\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308bpreset - rokkonet\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}