{"type":"rich","categories":[],"version":"1.0","published":"2014-04-24 00:00:00","width":"100%","title":"HTML5 Video \u3067\u4f7f\u3046\u52d5\u753b\u30d5\u30a1\u30a4\u30eb\u3092 FFmpeg \u3067\u5909\u63db\u3059\u308b","image_url":null,"author_url":"https://blog.hatena.ne.jp/scientre/","description":"\u5909\u63db\u65b9\u6cd5\u306b\u3088\u3063\u3066\u518d\u751f\u3067\u304d\u306a\u3044\u3082\u306e\u304c\u3042\u3063\u305f\u306e\u3067\u30e1\u30e2\u3002 MP4 ffmpeg -i <\u5165\u529b\u30d5\u30a1\u30a4\u30eb> -vcodec libx264 -pix_fmt yuv420p -vb 720k -s 1280x720 <\u51fa\u529b\u30d5\u30a1\u30a4\u30eb.mp4> -s \u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u52d5\u753b\u306e\u30d4\u30af\u30bb\u30eb\u6570\u3092\u6307\u5b9a\u3059\u308b\u3002iPad\uff08\u7b2c4\u4e16\u4ee3\uff09\u3067\u306f 1280 \u00d7 720 \u4ee5\u4e0b\u306e\u3082\u306e\u3057\u304b\u518d\u751f\u3067\u304d\u306a\u3044\u3002 WebM ffmpeg -i <\u5165\u529b\u30d5\u30a1\u30a4\u30eb> -f webm -vcodec libvpx -acodec libvorbis -s 1280x720 -vb 490k -ab 128k <\u51fa\u529b\u30d5\u30a1\u30a4\u30eb.webm>MP4 \u3068\u540c\u69d8\u306b -s \u30aa\u30d7\u2026","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fscientre.hateblo.jp%2Fentry%2F20140424%2Fhtml5_video_ffmpeg_options\" title=\"HTML5 Video \u3067\u4f7f\u3046\u52d5\u753b\u30d5\u30a1\u30a4\u30eb\u3092 FFmpeg \u3067\u5909\u63db\u3059\u308b - \u30e1\u30e2\u7528\u7d19\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","author_name":"scientre","blog_title":"\u30e1\u30e2\u7528\u7d19","height":"190","url":"https://scientre.hateblo.jp/entry/20140424/html5_video_ffmpeg_options","blog_url":"https://scientre.hateblo.jp/"}