{"author_name":"k3k1","version":"1.0","provider_url":"https://hatena.blog","url":"https://k3k1.hatenablog.com/entry/20081005/1223180335","width":"100%","blog_url":"https://k3k1.hatenablog.com/","blog_title":"k3k1\u2019s blog","author_url":"https://blog.hatena.ne.jp/k3k1/","provider_name":"Hatena Blog","type":"rich","description":"115\u79d2\u304b\u3089116\u79d2\u307e\u30671\u79d2\u9593\u9694\u3067JPEG\u5f62\u5f0f\u3067\u753b\u50cf\u3092\u5207\u308a\u51fa\u3059\u3002 #!/bin/sh sec=115 while [ ${sec} -le 116 ] do ffmpeg -i in.wmv -vframes 1 -an -ss ${sec} -f mjpeg ${sec}.jpg sec=`expr ${sec} + 1` done","published":"2008-10-05 13:18:55","height":"190","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fk3k1.hatenablog.com%2Fentry%2F20081005%2F1223180335\" title=\" ffmpeg \u3067\u52d5\u753b\u304b\u3089\u753b\u50cf\u3092\u5207\u308a\u51fa\u3059 - k3k1\u2019s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["Linux","\u30bd\u30d5\u30c8\u30a6\u30a8\u30a2"],"title":" ffmpeg \u3067\u52d5\u753b\u304b\u3089\u753b\u50cf\u3092\u5207\u308a\u51fa\u3059"}