{"type":"rich","version":"1.0","categories":["linux"],"author_url":"https://blog.hatena.ne.jp/thr3a/","provider_url":"https://hatena.blog","published":"2018-09-03 14:30:29","author_name":"thr3a","width":"100%","url":"https://blog.turai.work/entry/20180903/1535952629","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.turai.work%2Fentry%2F20180903%2F1535952629\" title=\"FFmpeg\u3067\u6307\u5b9a\u6642\u9593\u3054\u3068\u306b\u9759\u6b62\u753b\u3092\u5207\u308a\u51fa\u3057\u3066\u9023\u756a\u753b\u50cf\u3067\u51fa\u529b\u3059\u308b - \u52d5\u304b\u3056\u308b\u3053\u3068\u30d0\u30b0\u306e\u5982\u3057\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://blog.turai.work/","title":"FFmpeg\u3067\u6307\u5b9a\u6642\u9593\u3054\u3068\u306b\u9759\u6b62\u753b\u3092\u5207\u308a\u51fa\u3057\u3066\u9023\u756a\u753b\u50cf\u3067\u51fa\u529b\u3059\u308b","provider_name":"Hatena Blog","description":"\u52d5\u753b\u3092\u6a5f\u68b0\u5b66\u7fd2\u3055\u308c\u308b\u3042\u305f\u308a\u3001\u753b\u50cf\u306b\u5909\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u3063\u305f\u306e\u3067\u30e1\u30e2\u3002\u306a\u3093\u304b\u30b0\u30b0\u3063\u3066\u4e00\u756a\u6700\u521d\u306b\u51fa\u3066\u304d\u305f\u30b5\u30a4\u30c8\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u306f\u3067\u304d\u306a\u304b\u3063\u305f\u306e\u3067\u6ce8\u610f 1\u79d2\u6bce\u306b\u301c\u679a\u753b\u50cf\u3092\u751f\u6210\u3057\u305f\u3044\u5834\u5408 -r\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u3064\u3051\u308b\u3053\u3068\u3067\u6307\u5b9a\u30d5\u30ec\u30fc\u30e0\u3054\u3068\u306b\u62bd\u51fa\u3067\u304d\u308b\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b-r 2\u3092\u3064\u3051\u308b\u3068\uff11\u79d2\u3042\u305f\u308a\uff12\u679a\u306e\u753b\u50cf\u3092\u51fa\u529b\u3059\u308b\u3002\u52d5\u753b\u304c\uff11\u5206\u3042\u308c\u3070120\u679a\u306e\u753b\u50cf\u304c\u51fa\u529b\u3055\u308c\u308b\u306f\u305a\u3002 ffmpeg -i input.mp4 -r 2 -vcodec mjpeg image_%04d.jpg \u301c\u79d2\u6bce\u306b\uff11\u679a\u753b\u50cf\u3092\u751f\u6210\u3057\u305f\u3044\u5834\u5408 fps\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u53ef\u80fd\u3002\u4ee5\u4e0b\u306f\uff11\u79d2\u6bce\u306b\u753b\u50cf\u3092\u51fa\u529b\u3057\u305f\u3044\u5834\u5408 ffmpeg -i input.mp4 -filter\u2026","blog_title":"\u52d5\u304b\u3056\u308b\u3053\u3068\u30d0\u30b0\u306e\u5982\u3057","height":"190","image_url":null}