{"blog_title":"by shigemk2","url":"https://www.shigemk2.com/entry/2025/07/08/235222","height":"190","type":"rich","categories":["Linux"],"description":"\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306b\u3061\u3087\u3046\u3069\u3044\u3044\u30b5\u30f3\u30d7\u30eb\u52d5\u753b\u3092\u63a2\u3059\u306e\u3081\u3093\u3069\u304f\u3055\u3044 ffmpeg -f lavfi -i color=black:1280x720:rate=30:duration=5 -c:v libx264 -pix_fmt yuv420p black.mp4 ffmpeg \\ -f lavfi -i color=white:1280x720:rate=30:duration=1 \\ -f lavfi -i color=black:1280x720:rate=30:duration=1 \\ -f lavfi -i color=white:1280x720:rate=30:duration=1 \\ \u2026","width":"100%","version":"1.0","provider_url":"https://hatena.blog","blog_url":"https://www.shigemk2.com/","title":"ffmpeg\u3067\u9069\u5f53\u306amp4\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u308b","author_url":"https://blog.hatena.ne.jp/shigemk2/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.shigemk2.com%2Fentry%2F2025%2F07%2F08%2F235222\" title=\"ffmpeg\u3067\u9069\u5f53\u306amp4\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u308b - by shigemk2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"shigemk2","provider_name":"Hatena Blog","image_url":null,"published":"2025-07-08 23:52:22"}