https://www.pistack.xyz/tags/ffmpeg/ Recent content in Ffmpeg on Pi Stack Hugo en-us Tue, 29 Sep 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-09-29-subtitle-sync-ffsubsync-alass-libass-pysubs2-guide/ Tue, 29 Sep 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-09-29-subtitle-sync-ffsubsync-alass-libass-pysubs2-guide/ <p>Twenty minutes into a film, the dialogue drifts four seconds ahead of the picture. You nudge the offset in your player, and it holds — until the ad break in the source cut, where it snaps out of alignment again. Across a library of a few hundred files, roughly one in five subtitles has this problem, and fixing them by hand is a genuinely terrible use of an evening.</p>