{"categories":[],"version":"1.0","title":"ffmpeg \u3067\u52d5\u753b\u306e\u30b5\u30e0\u30cd\u30a4\u30eb\u3092\u30ba\u30d0\u30c3\u3068\u4f5c\u308b","blog_title":"\u305d\u308c\u30de\u30b0\u3067\uff01","image_url":null,"provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftakuya-1st.hatenablog.jp%2Fentry%2F20120419%2F1334819212\" title=\"ffmpeg \u3067\u52d5\u753b\u306e\u30b5\u30e0\u30cd\u30a4\u30eb\u3092\u30ba\u30d0\u30c3\u3068\u4f5c\u308b - \u305d\u308c\u30de\u30b0\u3067\uff01\" 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","height":"190","author_url":"https://blog.hatena.ne.jp/takuya_1st/","width":"100%","author_name":"takuya_1st","description":"\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u4e2d\u306e\u52d5\u753b\u3092\u4e00\u6c17\u306b\u30b5\u30e0\u30cd\u30a4\u30eb\u306b\u3059\u308b\u3002ruby\u4f7f\u3046\u3068\u697d\u3060\u3063\u305f\u3002 Dir.glob \u3067\u30d5\u30a1\u30a4\u30eb\u3092\u3059\u3079\u3066\u51fa\u3057\u3066\u3002 ffmpeg\u306b\u639b\u3051\u308b\u3002 #!/usr/bin/env ruby Dir.glob(\"*.mp4\").map{|e| \"ffmpeg -i '#{e}' -r 1 -f image2 -ss 20 -t 00:00:21 -vframes 1 '#{e}%d.jpg'\"}.each{|e| `#{e}`} \u30d5\u30a1\u30a4\u30eb\u3092\u63a2\u3059 Dir.glob(\"*.mp4\") \u5909\u63db\u30b3\u30de\u30f3\u30c9\u306b\u639b\u3051\u308b .map{|e| \"ffmpeg -i '#{e}' -r 1 -f image2 -ss 20 -t\u2026","published":"2012-04-19 16:06:52","url":"https://takuya-1st.hatenablog.jp/entry/20120419/1334819212","blog_url":"https://takuya-1st.hatenablog.jp/","type":"rich"}