https://blog.yexca.net/en/categories/hands-on-experience/Recent content in Hands-on Experience on yexca'BlogHugo -- gohugo.ioenyexcaWed, 15 Apr 2026 09:27:01 +0900https://blog.yexca.net/en/archives/276/Wed, 15 Apr 2026 09:27:01 +0900https://blog.yexca.net/en/archives/276/<div class="notice "><strong>📢</strong> This article was translated by gemini-3-flash-preview </div> <style lang="scss"> .notice { padding: 0.75em 1em; margin: 1em 0; border-left: 4px solid; border-radius: 4px; &.default { border-color: #ccc; background-color: #f9f9f9; color: #333; } &.info { border-color: #2196f3; background-color: #e3f2fd; color: #1a237e; } &.warn { border-color: #ff9800; background-color: #fff3e0; color: #e65100; } &.danger { border-color: #f44336; background-color: #ffebee; color: #b71c1c; } } [data-scheme="dark"] { .notice { &.default { border-color: #666; background-color: #2a2a2a; color: #eee; } &.info { border-color: #90caf9; background-color: #1e3a5f; color: #e3f2fd; } &.warn { border-color: #ffb74d; background-color: #4e342e; color: #fff3e0; } &.danger { border-color: #ef5350; background-color: #3e2723; color: #ffebee; } } } [data-scheme="sepia"] { .notice { &.info { border-color: #6a5acd; background-color: #fdf6e3; color: #3c2f2f; } &.warn { border-color: #e9967a; background-color: #faf0e6; color: #5c4033; } &.danger { border-color: #cd5c5c; background-color: #f5e0dc; color: #7b3f3f; } } } </style> <p>When it comes to audio and video processing, FFmpeg is the ultimate open-source tool. I&rsquo;ve been using it for a while, but my notes were scattered. Since I&rsquo;m using it more frequently now, I decided to compile my most-used commands here (and add a few missing ones).</p>