{"id":415,"date":"2018-06-17T21:22:29","date_gmt":"2018-06-17T12:22:29","guid":{"rendered":"http:\/\/www7390uo.sakura.ne.jp\/wordpress\/?p=415"},"modified":"2022-05-21T23:31:25","modified_gmt":"2022-05-21T14:31:25","slug":"ffmpeg%e3%81%a7%e5%8b%95%e7%94%bb%e3%81%ae%e4%b8%80%e9%83%a8%e3%82%92%e5%88%87%e3%82%8a%e5%87%ba%e3%81%99","status":"publish","type":"post","link":"https:\/\/www7390uo.sakura.ne.jp\/wordpress\/archives\/415","title":{"rendered":"ffmpeg\u3067\u52d5\u753b\u306e\u4e00\u90e8\u3092\u5207\u308a\u51fa\u3059"},"content":{"rendered":"\n<p>OS:Ubuntu Server 12.04<br>FFmpeg: 2.8.14<\/p>\n\n\n\n<p>\u52d5\u753b\u30d5\u30a1\u30a4\u30eb\u306e\u4e00\u90e8\u3092\u3046\u307e\u3044\u5177\u5408\u306b\u5207\u308a\u51fa\u3057\u3066\u305d\u306e\u30b7\u30fc\u30f3\u3070\u304b\u308a\u697d\u3057\u307f\u305f\u3044\u3001\u3068\u3044\u3046\u52d5\u6a5f\u306b\u3082\u3068\u3065\u3044\u3066ffmpeg\u3092\u7528\u3044\u308b\u3082\u306e\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>-ss\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u5207\u308a\u51fa\u3057\u306e\u958b\u59cb\u6642\u523b\u3092\u6307\u5b9a\u3057\u3001\u7d42\u4e86\u6642\u523b\u3092-to\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u793a\u3057\u3066\u3084\u308b\u3002\u52d5\u753bvid.mkv\u306e3\u52068\u79d2\u306e\u5730\u70b9\u304b\u30893\u520617\u79d2\u306e\u5730\u70b9\u307e\u3067\u306e9\u79d2\u9593\u3092\u5207\u308a\u51fa\u3059\u305f\u3081\u306b\u306f\u3053\u3093\u306a\u5177\u5408\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">$ ffmpeg -ss 03:08 -i vid.mkv -to 00:09 -c copy cut.mkv<\/pre>\n\n\n\n<p>-ss\u30aa\u30d7\u30b7\u30e7\u30f3\u3092-i\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u524d\u3078\u9063\u308b\u304b\u5f8c\u308d\u306b\u7f6e\u304f\u304b\u3067-to\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u6319\u52d5\u304c\u8ee2\u3058\u3066\u3057\u307e\u3046\u306e\u3067\u7d30\u3084\u304b\u306a\u6ce8\u610f\u3092\u8981\u3059\u308b\u3002<\/p>\n\n\n\n<p>-i\u30aa\u30d7\u30b7\u30e7\u30f3\u3088\u308a\u3082\u624b\u524d\u306b-ss\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u8a2d\u7f6e\u3057\u305f\u5834\u5408\u3001\u5207\u308a\u51fa\u3057\u958b\u59cb\u6642\u523b\u306e03:08\u309200:00\u3068\u6349\u3048\u308b\u3002\u3059\u308b\u30689\u79d2\u5f8c\u306e\u6642\u523b\u306f\u52ff\u8ad600:09\u3068\u3044\u3046\u3053\u3068\u306b\u3042\u308b\u3002-ss\u306e\u4f4d\u7f6e\u53d6\u308a\u304c-i\u3088\u308a\u3082\u624b\u524d\u3067\u3042\u308b\u3068\u3001\u30ad\u30fc\u30d5\u30ec\u30fc\u30e0\u306b\u3082\u3068\u3065\u3044\u3066\u51e6\u7406\u3092\u3059\u308b\u304b\u3089\u5927\u5909\u8fc5\u901f\u3060\u3068\u3044\u3046\u3053\u3068\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u4e00\u65b9\u3001-i\u30aa\u30d7\u30b7\u30e7\u30f3\u3088\u308a\u3082\u5f8c\u65b9\u3078-ss\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u69cb\u3048\u308b\u5834\u5408\u306f\u52d5\u753b\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u305d\u306e\u307e\u307e\u7528\u3044\u308b\u3002\u3053\u3061\u3089\u306f\u51e6\u7406\u304c\u9045\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u3042\u3063\u305f\u3051\u308c\u3069\u3082\u3001\u30c6\u30b9\u30c8\u3067\u4f7f\u7528\u3057\u305f\u52d5\u753b\u30d5\u30a1\u30a4\u30eb\u3067\u306f-ss\u3092-i\u306e\u524d\u306b\u304a\u3044\u305f\u5834\u5408\u3068\u7136\u7a0b\u5909\u5316\u306f\u898b\u3089\u308c\u306a\u304b\u3063\u305f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">$ ffmpeg -i vid.mkv -ss 3:08 -to 3:17 -c copy cut.mkv<\/pre>\n\n\n\n<p>\u306a\u304a\u3001\u5207\u308a\u51fa\u3059\u6642\u9593\u3092\u8a08\u7b97\u3057\u3066\u5272\u308a\u51fa\u3059\u306e\u304c\u9762\u5012\u306a\u5411\u304d\u306b\u306f-copyts\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u8ffd\u52a0\u3059\u308b\u3002\u3053\u308c\u3067-ss\u30aa\u30d7\u30b7\u30e7\u30f3\u304c-i\u30aa\u30d7\u30b7\u30e7\u30f3\u3088\u308a\u624b\u524d\u306b\u3042\u3063\u3066\u3082\u52d5\u753b\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u305d\u306e\u307e\u307e\u89e3\u91c8\u3055\u305b\u3089\u308c\u308b\u3068\u4e91\u3046\u3053\u3068\u3067\u3042\u3063\u305f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">$ ffmpeg -ss 03:08 -i vid.mkv -to 03:17 -c copy -copyts cut.mkv<\/pre>\n\n\n\n<p>\u7136\u3057\u306a\u304c\u3089\u5207\u308a\u53d6\u3063\u305f\u52d5\u753b\u306f\u6700\u521d\u306e5\u79d2\u9593\u304c\u771f\u3063\u9ed2\u3067\u56f0\u3063\u305f\u3002\u3069\u3046\u3082<code>-c copy<\/code>\u30aa\u30d7\u30b7\u30e7\u30f3\u306fI\u30d5\u30ec\u30fc\u30e0\u3067\u306e\u307f\u5207\u65ad\u53ef\u80fd\u306e\u3088\u3046\u3067\u3042\u308b\u3002\u5143\u3068\u306a\u308b\u52d5\u753b\u306e\u3069\u3053\u306bI\u30d5\u30ec\u30fc\u30e0\u304c\u631f\u307f\u3053\u307e\u308c\u3066\u3044\u308b\u306e\u304b\u3092\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3068\u3053\u3046\u3044\u3046\u5177\u5408\u3067\u3042\u3063\u305f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">$ ffprobe -show_frames -select_streams v -show_entries frame=pkt_pts_time,pict_type vid.mkv | grep -B1 \"=I\"\n(snip)\n--\npkt_pts_time=186.645000\npict_type=I\n--\npkt_pts_time=<strong class=\"orange\">193.652000<\/strong>\npict_type=I<\/pre>\n\n\n\n<p>3\u52068\u79d2(=188\u79d2)\u304b\u3089\u5207\u308a\u53d6\u308a\u305f\u3044\u3051\u308c\u3069\u3082\u3001\u305d\u3053\u306bI\u30d5\u30ec\u30fc\u30e0\u304c\u306a\u3044\u305f\u3081\u306b5\u79d2\u5f8c\u306e193.652000\u79d2\u306e\u5730\u70b9\u307e\u3067\u52d5\u753b\u304c\u771f\u3063\u6697\u306b\u306a\u308b\u98a8\u60c5\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u305d\u3053\u3067\u5207\u308a\u51fa\u3057\u958b\u59cb\u3088\u308a\u624b\u524d\u306eI\u30d5\u30ec\u30fc\u30e0\u304b\u3089\u5207\u308a\u51fa\u3057\u305f\u52d5\u753b\u306b\u5bfe\u3057\u3066<code>-g 1<\/code>\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u4ed8\u4e0e\u3057\u3066\u5168\u30d5\u30ec\u30fc\u30e0\u3092I\u30d5\u30ec\u30fc\u30e0\u3068\u6210\u305b\u3070\u81ea\u5728\u306b\u5207\u308a\u51fa\u305b\u308b\u3068\u601d\u3063\u305f\u306e\u3067\u3042\u308b\u3051\u3069\u3001\u3069\u3046\u3057\u3066\u3082\u601d\u60d1\u901a\u308a\u306b\u306a\u3089\u306a\u3044\u3002\u52d5\u753b\u30d5\u30a1\u30a4\u30eb\u3082ffmpeg\u3082\u5965\u304c\u6df1\u3044\u3082\u306e\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">$ ffmpeg -i cut.mkv -g 1 iframe.mkv<\/pre>\n\n\n\n<h3 class=\"link\">\u53c2\u8003:<\/h3>\n<ul>\n <li><a href=\"http:\/\/trac.ffmpeg.org\/wiki\/Seeking#Cuttingsmallsections\">Seeking \u2013 FFmpeg<\/a><\/li>\n <li><a href=\"https:\/\/superuser.com\/questions\/554620\/how-to-get-time-stamp-of-closest-keyframe-before-a-given-timestamp-with-ffmpeg\">How to get time stamp of closest keyframe before a given timestamp with FFmpeg?<\/a><\/li>\n <li><a href=\"http:\/\/aviutl.info\/keyframe\/\">\u30ad\u30fc\u30d5\u30ec\u30fc\u30e0\u3068\u306f\uff1fI\u30d5\u30ec\u30fc\u30e0\uff65P\u30d5\u30ec\u30fc\u30e0\uff65B\u30d5\u30ec\u30fc\u30e0\u306e\u9055\u3044\u3010GOP\u3011<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>OS:Ubuntu Server 12.04FFmpeg: 2.8.14 \u52d5\u753b\u30d5\u30a1\u30a4\u30eb\u306e\u4e00\u90e8\u3092\u3046\u307e\u3044\u5177\u5408\u306b\u5207\u308a\u51fa\u3057\u3066\u305d\u306e\u30b7\u30fc\u30f3\u3070\u304b\u308a\u697d\u3057\u307f\u305f\u3044\u3001\u3068\u3044\u3046\u52d5\u6a5f\u306b\u3082\u3068\u3065\u3044\u3066ffmpeg\u3092\u7528\u3044\u308b\u3082\u306e\u3067\u3042\u308b\u3002 -ss\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u5207\u308a\u51fa\u3057\u306e\u958b\u59cb\u6642\u523b\u3092\u6307\u5b9a\u3057\u3001\u7d42\u4e86\u6642\u523b\u3092-to\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u793a\u3057\u3066\u3084\u308b\u3002\u52d5\u753bvid.mkv\u306e3\u52068\u79d2\u306e\u5730\u70b9\u304b\u30893\u520617\u79d2\u306e\u5730\u70b9\u307e\u3067\u306e9\u79d2\u9593\u3092\u5207\u308a\u51fa\u3059\u305f\u3081\u306b\u306f\u3053\u3093\u306a\u5177\u5408\u3067\u3042\u308b\u3002 $ ffm &#8230; <a title=\"ffmpeg\u3067\u52d5\u753b\u306e\u4e00\u90e8\u3092\u5207\u308a\u51fa\u3059\" class=\"read-more\" href=\"https:\/\/www7390uo.sakura.ne.jp\/wordpress\/archives\/415\" aria-label=\"ffmpeg\u3067\u52d5\u753b\u306e\u4e00\u90e8\u3092\u5207\u308a\u51fa\u3059 \u306b\u3064\u3044\u3066\u3055\u3089\u306b\u8aad\u3080\">\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":1318,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[162],"tags":[182],"class_list":["post-415","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-162","tag-ffmpeg"],"views":12317,"_links":{"self":[{"href":"https:\/\/www7390uo.sakura.ne.jp\/wordpress\/wp-json\/wp\/v2\/posts\/415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www7390uo.sakura.ne.jp\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www7390uo.sakura.ne.jp\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www7390uo.sakura.ne.jp\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www7390uo.sakura.ne.jp\/wordpress\/wp-json\/wp\/v2\/comments?post=415"}],"version-history":[{"count":0,"href":"https:\/\/www7390uo.sakura.ne.jp\/wordpress\/wp-json\/wp\/v2\/posts\/415\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www7390uo.sakura.ne.jp\/wordpress\/wp-json\/wp\/v2\/media\/1318"}],"wp:attachment":[{"href":"https:\/\/www7390uo.sakura.ne.jp\/wordpress\/wp-json\/wp\/v2\/media?parent=415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www7390uo.sakura.ne.jp\/wordpress\/wp-json\/wp\/v2\/categories?post=415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www7390uo.sakura.ne.jp\/wordpress\/wp-json\/wp\/v2\/tags?post=415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}